/* roulang page: index */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
            position: relative;
        }

        .section--tight {
            padding: 48px 0;
        }

        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }

        .section--gradient-banner {
            background: var(--gradient-deep-banner);
            color: #F5F1E8;
            padding: 64px 0;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 36px;
        }

        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }

        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }

        .section--deep .section-heading h2,
        .section--gradient-banner .section-heading h2 {
            color: #F5EFE2;
        }

        .section-heading p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-muted);
            max-width: 720px;
        }

        .section--deep .section-heading p,
        .section--gradient-banner .section-heading p {
            color: rgba(245, 239, 226, 0.75);
        }

        .section-heading--center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }
        .section-heading--center p {
            margin-left: auto;
            margin-right: auto;
        }

        h1 {
            font-family: var(--font-title);
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.01em;
            color: #F5F1E8;
        }

        h3 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-primary);
        }

        .section--deep h3 {
            color: #F5EFE2;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            line-height: 1.4;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            color: var(--color-primary);
            white-space: nowrap;
        }
        .badge--gold {
            background: linear-gradient(135deg, rgba(217, 164, 65, 0.28) 0%, rgba(232, 200, 122, 0.18) 100%);
            border-color: rgba(217, 164, 65, 0.45);
            color: #8B6914;
        }
        .badge--green {
            background: linear-gradient(135deg, rgba(42, 168, 126, 0.18) 0%, rgba(42, 168, 126, 0.1) 100%);
            border-color: rgba(42, 168, 126, 0.35);
            color: #1F7A5C;
        }
        .badge--coral {
            background: linear-gradient(135deg, rgba(232, 93, 61, 0.18) 0%, rgba(232, 93, 61, 0.08) 100%);
            border-color: rgba(232, 93, 61, 0.35);
            color: #C2401F;
        }
        .badge--dark {
            background: rgba(15, 45, 58, 0.06);
            border-color: rgba(15, 45, 58, 0.15);
            color: var(--color-primary);
        }
        .section--deep .badge--dark {
            background: rgba(245, 239, 226, 0.08);
            border-color: rgba(217, 164, 65, 0.3);
            color: #E8C87A;
        }

        .data-badge {
            display: inline-flex;
            align-items: baseline;
            gap: 8px;
            padding: 10px 16px;
            border-radius: var(--radius-badge);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-primary);
            white-space: nowrap;
        }
        .data-badge .number {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-gold);
            letter-spacing: -0.01em;
            font-variant-numeric: tabular-nums;
        }
        .section--deep .data-badge {
            background: rgba(245, 239, 226, 0.07);
            border-color: rgba(217, 164, 65, 0.3);
            color: #E8E4DA;
        }
        .section--deep .data-badge .number {
            color: var(--color-gold-light);
        }

        /* ============ BUTTONS ============ */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all var(--transition-base);
            min-width: 120px;
            text-align: center;
            letter-spacing: 0.01em;
        }
        .btn--primary {
            background: var(--gradient-btn);
            color: #ffffff;
            box-shadow: var(--shadow-btn);
            border: none;
        }
        .btn--primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #ffffff;
            background: var(--gradient-btn-hover);
        }
        .btn--primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(15, 45, 58, 0.18);
        }
        .btn--secondary {
            background: transparent;
            color: var(--color-gold);
            border: 1px solid var(--color-gold);
            box-shadow: none;
        }
        .btn--secondary:hover {
            transform: translateY(-2px);
            background: rgba(217, 164, 65, 0.08);
            border-color: var(--color-gold-light);
            color: var(--color-gold-light);
            box-shadow: 0 8px 20px rgba(217, 164, 65, 0.15);
        }
        .btn--secondary:active {
            transform: translateY(1px);
            box-shadow: none;
        }
        .btn--light {
            background: #F5F1E8;
            color: var(--color-primary);
            box-shadow: var(--shadow-btn);
            border: none;
        }
        .btn--light:hover {
            transform: translateY(-2px);
            background: #ffffff;
            box-shadow: var(--shadow-btn-hover);
            color: var(--color-primary);
        }
        .btn--light:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }
        .btn--sm {
            padding: 10px 18px;
            font-size: 14px;
            min-width: 90px;
            border-radius: 10px;
        }
        .btn--lg {
            padding: 16px 36px;
            font-size: 16px;
            min-width: 140px;
            border-radius: 14px;
        }
        .btn--full-mobile {
            width: 100%;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
            background: var(--gradient-deep-banner);
            box-shadow: var(--shadow-nav);
            display: flex;
            align-items: center;
            transition: background var(--transition-base);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 800;
            color: #F5EFE2;
            letter-spacing: 0.04em;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient-brand);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #0F2D3A;
            border: 1px solid rgba(217, 164, 65, 0.5);
            box-shadow: 0 4px 12px rgba(217, 164, 65, 0.35);
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex: 1;
            justify-content: center;
        }
        .nav-links--left {
            justify-content: flex-end;
            padding-right: 12px;
        }
        .nav-links--right {
            justify-content: flex-start;
            padding-left: 12px;
        }
        .nav-links li {
            display: inline-flex;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: rgba(245, 239, 226, 0.85);
            padding: 8px 12px;
            border-radius: 8px;
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
            letter-spacing: 0.01em;
        }
        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.1);
        }
        .nav-links a.active {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.14);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid rgba(217, 164, 65, 0.4);
            background: rgba(245, 239, 226, 0.06);
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            transition: all var(--transition-base);
            flex-shrink: 0;
        }
        .nav-toggle:hover {
            background: rgba(217, 164, 65, 0.15);
            border-color: rgba(217, 164, 65, 0.6);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: #F5EFE2;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--gradient-deep-banner);
            z-index: 99;
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
            animation: fadeIn 0.3s ease;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            display: block;
            padding: 14px 18px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 500;
            color: rgba(245, 239, 226, 0.85);
            background: rgba(245, 239, 226, 0.05);
            border: 1px solid rgba(217, 164, 65, 0.15);
            transition: all var(--transition-base);
        }
        .mobile-menu a:hover {
            background: rgba(217, 164, 65, 0.12);
            color: var(--color-gold-light);
        }
        .mobile-menu a.active {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.15);
            font-weight: 700;
            border-color: rgba(217, 164, 65, 0.4);
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ============ HERO ============ */
        .hero {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            background: var(--gradient-deep-banner);
            overflow: hidden;
            padding: 60px 0 80px;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.28;
            z-index: 1;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(14, 40, 50, 0.25) 0%, rgba(14, 40, 50, 0.55) 60%, rgba(14, 40, 50, 0.75) 100%);
            z-index: 1;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 20px;
        }
        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.75;
            color: rgba(245, 239, 226, 0.82);
            max-width: 560px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 8px;
        }
        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 12px;
        }
        .hero-panel {
            display: flex;
            flex-direction: column;
            gap: 16px;
            background: rgba(20, 60, 70, 0.65);
            border: 1px solid rgba(217, 164, 65, 0.3);
            border-radius: 24px;
            padding: 28px;
            backdrop-filter: blur(12px);
            box-shadow: 0 20px 48px rgba(0, 0, 0, 0.25);
        }
        .hero-panel-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-gold-light);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }
        .hero-panel-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(245, 239, 226, 0.1);
            font-size: 14px;
            color: rgba(245, 239, 226, 0.85);
        }
        .hero-panel-item:last-child {
            border-bottom: none;
        }
        .hero-panel-item .label {
            font-weight: 500;
        }
        .hero-panel-item .value {
            font-weight: 700;
            font-size: 16px;
            color: var(--color-gold-light);
            font-variant-numeric: tabular-nums;
        }

        /* ============ CARD ============ */
        .card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .card--deep {
            background: var(--color-primary-card);
            border-color: var(--color-border-gold);
            color: #E8E4DA;
        }
        .card--deep h3 {
            color: #F5EFE2;
        }
        .card-body {
            padding: 24px;
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .card-title {
            font-size: 19px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 10px;
            color: var(--color-primary);
        }
        .card--deep .card-title {
            color: #F5EFE2;
        }
        .card-text {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-muted);
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .card--deep .card-text {
            color: rgba(245, 239, 226, 0.7);
        }
        .card-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }

        /* ============ BRAND STORY ============ */
        .brand-story {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-story-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }
        .brand-story-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .brand-story-content h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-primary);
        }
        .brand-story-content p {
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-muted);
        }

        /* ============ PAIN POINT ============ */
        .pain-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .pain-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 28px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }
        .pain-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .pain-card--accent {
            border-left: 4px solid var(--color-coral);
        }
        .pain-card--gold {
            border-left: 4px solid var(--color-gold);
        }
        .pain-card .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }
        .pain-card h3 {
            font-size: 20px;
        }
        .pain-card p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-muted);
        }
        .pain-card ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .pain-card ul li {
            font-size: 14px;
            line-height: 1.6;
            color: var(--color-muted);
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .pain-card ul li::before {
            content: '•';
            color: var(--color-gold);
            font-weight: 700;
            font-size: 16px;
            line-height: 1.4;
            flex-shrink: 0;
        }

        /* ============ SOLUTION ============ */
        .solution-flow {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .solution-step {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
            text-align: center;
        }
        .solution-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .solution-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--gradient-btn);
            color: #ffffff;
            font-weight: 800;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            box-shadow: var(--shadow-btn);
        }
        .solution-step h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.35;
        }
        .solution-step p {
            font-size: 13px;
            line-height: 1.65;
            color: var(--color-muted);
        }
        .solution-step .badge {
            margin: 0 auto;
            font-size: 12px;
            padding: 4px 10px;
        }

        /* ============ RESULTS ============ */
        .results-band {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
            margin-bottom: 36px;
        }
        .results-band .data-badge {
            justify-content: center;
            padding: 18px 20px;
            flex-direction: column;
            gap: 4px;
            align-items: center;
            text-align: center;
            white-space: normal;
        }
        .results-band .data-badge .number {
            font-size: 28px;
        }
        .results-band .data-badge .label-text {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }
        .results-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .result-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 26px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: all var(--transition-base);
        }
        .result-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .result-card h3 {
            font-size: 19px;
        }
        .result-card p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--color-muted);
        }

        /* ============ FEATURED CONTENT ============ */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .featured-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }
        .featured-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .featured-card .card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 20px;
        }
        .featured-card .card-title {
            font-size: 17px;
            margin-bottom: 6px;
        }
        .featured-card .card-text {
            font-size: 14px;
            -webkit-line-clamp: 2;
            flex: 1;
        }

        /* ============ TESTIMONIALS ============ */
        .testimonial-timeline {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: relative;
        }
        .testimonial-timeline::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--color-gold), var(--color-coral));
            border-radius: 3px;
            opacity: 0.4;
        }
        .testimonial-item {
            display: grid;
            grid-template-columns: 60px 1fr;
            gap: 18px;
            align-items: start;
            position: relative;
            padding-left: 10px;
        }
        .testimonial-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--gradient-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: #ffffff;
            border: 2px solid var(--color-gold);
            box-shadow: 0 4px 14px rgba(217, 164, 65, 0.3);
            z-index: 1;
            flex-shrink: 0;
        }
        .testimonial-content {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            transition: all var(--transition-base);
        }
        .testimonial-content:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .testimonial-content .name {
            font-weight: 700;
            font-size: 15px;
            color: var(--color-primary);
            margin-bottom: 4px;
        }
        .testimonial-content .quote {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-muted);
            margin-bottom: 10px;
        }
        .testimonial-content .badge {
            font-size: 12px;
            padding: 4px 10px;
        }

        /* ============ PARTNER TAGS ============ */
        .partner-tags {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .partner-tag {
            background: rgba(245, 239, 226, 0.06);
            border: 1px solid rgba(217, 164, 65, 0.2);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition-base);
        }
        .partner-tag:hover {
            border-color: rgba(217, 164, 65, 0.5);
            background: rgba(217, 164, 65, 0.08);
            transform: translateY(-2px);
        }
        .partner-tag .tag-name {
            font-weight: 700;
            font-size: 16px;
            color: #F5EFE2;
        }
        .partner-tag .tag-desc {
            font-size: 13px;
            line-height: 1.6;
            color: rgba(245, 239, 226, 0.65);
        }

        /* ============ NEWS ============ */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 28px;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            background: #ffffff;
            border-radius: 14px;
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 14px rgba(15, 45, 58, 0.05);
            padding: 18px 20px;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .news-item:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
            border-color: rgba(217, 164, 65, 0.3);
        }
        .news-item .news-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--color-muted);
        }
        .news-item .news-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.4;
        }
        .news-item .news-summary {
            font-size: 14px;
            line-height: 1.65;
            color: var(--color-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-sidebar {
            background: var(--color-primary-card);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-gold);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            height: fit-content;
        }
        .news-sidebar h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-gold-light);
        }
        .news-sidebar .sidebar-link {
            display: block;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: rgba(245, 239, 226, 0.8);
            background: rgba(245, 239, 226, 0.05);
            border: 1px solid rgba(217, 164, 65, 0.15);
            transition: all var(--transition-base);
        }
        .news-sidebar .sidebar-link:hover {
            background: rgba(217, 164, 65, 0.12);
            color: var(--color-gold-light);
            border-color: rgba(217, 164, 65, 0.35);
        }

        /* ============ SECURITY ============ */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .security-card {
            background: rgba(245, 239, 226, 0.05);
            border: 1px solid rgba(217, 164, 65, 0.2);
            border-radius: var(--radius-card);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition-base);
        }
        .security-card:hover {
            border-color: rgba(217, 164, 65, 0.45);
            background: rgba(217, 164, 65, 0.07);
        }
        .security-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }
        .security-card h4 {
            font-size: 17px;
            font-weight: 700;
            color: #F5EFE2;
        }
        .security-card p {
            font-size: 14px;
            line-height: 1.65;
            color: rgba(245, 239, 226, 0.7);
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-faq);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 14px rgba(15, 45, 58, 0.05);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item.open {
            border-color: rgba(217, 164, 65, 0.4);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: left;
            background: transparent;
        }
        .faq-question:hover {
            color: var(--color-gold);
        }
        .faq-item.open .faq-question {
            color: var(--color-gold);
            border-left: 4px solid var(--color-gold);
            padding-left: 18px;
        }
        .faq-icon {
            font-size: 22px;
            font-weight: 700;
            color: var(--color-gold);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 360px;
            padding: 0 22px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-muted);
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            position: relative;
            background: var(--gradient-deep-banner);
            border-radius: var(--radius-card);
            overflow: hidden;
            padding: 52px 48px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 32px;
            align-items: center;
            border: 1px solid rgba(217, 164, 65, 0.3);
            box-shadow: var(--shadow-card-hover);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            pointer-events: none;
        }
        .cta-banner-content {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-banner-content h2 {
            font-family: var(--font-title);
            font-size: 30px;
            font-weight: 800;
            line-height: 1.3;
            color: #F5EFE2;
        }
        .cta-banner-content p {
            font-size: 15px;
            line-height: 1.7;
            color: rgba(245, 239, 226, 0.75);
            max-width: 520px;
        }
        .cta-banner-actions {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: flex-end;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--color-primary-deep);
            color: rgba(245, 239, 226, 0.7);
            padding: 56px 0 32px;
            margin-top: auto;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 14px;
            font-size: 22px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 239, 226, 0.55);
            max-width: 320px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-gold-light);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            line-height: 1.8;
            color: rgba(245, 239, 226, 0.55);
            transition: color var(--transition-base);
            padding: 2px 0;
        }
        .footer-col a:hover {
            color: var(--color-gold-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(245, 239, 226, 0.1);
            padding-top: 22px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(245, 239, 226, 0.45);
        }
        .footer-bottom .footer-links-mini {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .footer-bottom .footer-links-mini a {
            font-size: 12px;
            color: rgba(245, 239, 226, 0.45);
            transition: color var(--transition-base);
        }
        .footer-bottom .footer-links-mini a:hover {
            color: var(--color-gold-light);
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1023px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-panel {
                max-width: 480px;
            }
            .solution-flow {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .partner-tags {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .cta-banner {
                grid-template-columns: 1fr;
                padding: 36px 28px;
                gap: 20px;
            }
            .cta-banner-actions {
                justify-content: flex-start;
            }
            .brand-story {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .results-band {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .results-cards {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --nav-height: 64px;
            }
            .site-header .container {
                justify-content: space-between;
            }
            .nav-links {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-logo {
                font-size: 20px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 16px;
            }

            h1 {
                font-size: 32px;
                line-height: 1.25;
            }
            .section {
                padding: 48px 0;
            }
            .section--tight {
                padding: 36px 0;
            }
            .section--gradient-banner {
                padding: 48px 0;
            }
            .section-heading {
                margin-bottom: 24px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .section-heading p {
                font-size: 14px;
            }

            .hero {
                min-height: auto;
                padding: 40px 0 56px;
            }
            .hero-content {
                gap: 14px;
            }
            .hero-subtitle {
                font-size: 15px;
                line-height: 1.7;
            }
            .hero-cta-row {
                flex-direction: column;
                width: 100%;
            }
            .hero-cta-row .btn {
                width: 100%;
            }
            .hero-stats-row {
                gap: 10px;
            }
            .hero-panel {
                padding: 20px;
                border-radius: 18px;
            }
            .hero-panel-item {
                font-size: 13px;
                padding: 10px 0;
            }
            .hero-panel-item .value {
                font-size: 14px;
            }

            .solution-flow {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .solution-step {
                padding: 16px;
            }
            .solution-step h4 {
                font-size: 14px;
            }
            .solution-step p {
                font-size: 12px;
            }
            .solution-step .step-number {
                width: 36px;
                height: 36px;
                font-size: 15px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .partner-tags {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .security-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .results-band {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .results-band .data-badge .number {
                font-size: 22px;
            }
            .testimonial-item {
                grid-template-columns: 44px 1fr;
                gap: 12px;
                padding-left: 4px;
            }
            .testimonial-avatar {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .testimonial-timeline::before {
                left: 20px;
            }
            .testimonial-content {
                padding: 16px 18px;
            }
            .cta-banner {
                padding: 28px 20px;
                border-radius: 18px;
            }
            .cta-banner-content h2 {
                font-size: 24px;
            }
            .cta-banner-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-banner-actions .btn {
                width: 100%;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                font-size: 11px;
            }
            .footer-bottom .footer-links-mini {
                flex-wrap: wrap;
                gap: 10px;
            }

            .btn {
                padding: 12px 22px;
                font-size: 14px;
                min-width: 100px;
            }
            .btn--lg {
                padding: 14px 28px;
                font-size: 15px;
                min-width: 120px;
            }
            .data-badge {
                padding: 8px 12px;
                font-size: 12px;
            }
            .data-badge .number {
                font-size: 18px;
            }
            .badge {
                font-size: 12px;
                padding: 5px 10px;
            }
            .card-body {
                padding: 18px;
            }
            .card-title {
                font-size: 17px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 13px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .news-item {
                padding: 14px 16px;
            }
            .news-item .news-title {
                font-size: 14px;
            }
            .news-item .news-summary {
                font-size: 13px;
            }
        }

        @media (max-width: 519px) {
            .solution-flow {
                grid-template-columns: 1fr;
            }
            .results-band {
                grid-template-columns: 1fr;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
            .hero .container {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0;
            }
            h1 {
                font-size: 28px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 64px 0;
            position: relative;
        }

        .section--tight {
            padding: 40px 0;
        }

        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }

        .section--gradient-banner {
            background: var(--gradient-deep-banner);
            color: #F5F1E8;
            padding: 56px 0;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 32px;
        }

        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }

        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 10px;
        }

        .section--deep .section-heading h2,
        .section--gradient-banner .section-heading h2 {
            color: #F5EFE2;
        }

        .section-heading p {
            font-size: 15px;
            color: var(--color-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .section--deep .section-heading p,
        .section--gradient-banner .section-heading p {
            color: rgba(232, 228, 218, 0.75);
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(15, 45, 58, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(217, 164, 65, 0.15);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            position: relative;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F5EFE2;
            letter-spacing: 0.02em;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            color: var(--color-gold);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient-btn);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            font-family: var(--font-title);
            box-shadow: var(--shadow-btn);
            border: 1px solid rgba(217, 164, 65, 0.35);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 18px;
            list-style: none;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            color: rgba(232, 228, 218, 0.82);
            padding: 8px 4px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0%;
            height: 2px;
            background: var(--gradient-btn);
            border-radius: 2px;
            transition: width var(--transition-base);
        }

        .nav-links a:hover {
            color: var(--color-gold);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--color-gold);
            font-weight: 700;
        }

        .nav-links a.active::after {
            width: 100%;
            background: var(--color-gold);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(217, 164, 65, 0.1);
            border: 1px solid rgba(217, 164, 65, 0.2);
            transition: background var(--transition-base);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(217, 164, 65, 0.2);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 20px 0 0;
            background: var(--color-bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-muted);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: var(--color-gold);
        }

        .breadcrumb .sep {
            color: var(--color-gold);
            font-weight: 600;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Version Hero */
        .version-hero {
            padding: 40px 0 48px;
            background: var(--color-bg);
            position: relative;
        }

        .version-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-brand);
            border-radius: 0 0 4px 4px;
        }

        .version-hero-inner {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: start;
        }

        .version-hero-content h1 {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .version-hero-content .lead {
            font-size: 16px;
            color: var(--color-muted);
            line-height: 1.75;
            margin-bottom: 24px;
            max-width: 600px;
        }

        .version-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: var(--radius-badge);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            font-size: 13px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .meta-badge span {
            color: var(--color-gold);
            font-weight: 800;
        }

        .version-hero-image {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }

        .version-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
            min-height: 260px;
        }

        .version-hero-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 45, 58, 0.4) 0%, rgba(15, 45, 58, 0.1) 50%, rgba(217, 164, 65, 0.2) 100%);
            pointer-events: none;
            border-radius: var(--radius-card);
        }

        .image-overlay-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            z-index: 2;
            padding: 8px 16px;
            border-radius: var(--radius-badge);
            background: rgba(15, 45, 58, 0.85);
            border: 1px solid rgba(217, 164, 65, 0.35);
            color: #F5EFE2;
            font-size: 13px;
            font-weight: 600;
        }

        /* Version Cards Grid */
        .version-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 8px;
        }

        .version-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: all var(--transition-spring);
            position: relative;
            overflow: hidden;
        }

        .version-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gradient-btn);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .version-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
        }

        .version-card--featured {
            border-color: var(--color-border-gold);
            box-shadow: 0 16px 40px rgba(217, 164, 65, 0.15);
        }

        .version-card--featured::before {
            background: var(--gradient-brand);
        }

        .version-card--featured .version-tag {
            position: absolute;
            top: 14px;
            right: 14px;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            background: var(--gradient-btn);
            color: #fff;
            letter-spacing: 0.04em;
        }

        .version-name {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .version-subtitle {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.6;
        }

        .version-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .stat-badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 12px;
            border-radius: var(--radius-badge);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .stat-badge strong {
            color: var(--color-gold);
            font-weight: 800;
        }

        .stat-badge--green {
            background: rgba(42, 168, 126, 0.1);
            border-color: rgba(42, 168, 126, 0.25);
        }

        .stat-badge--green strong {
            color: var(--color-green);
        }

        .stat-badge--coral {
            background: rgba(232, 93, 61, 0.08);
            border-color: rgba(232, 93, 61, 0.2);
        }

        .stat-badge--coral strong {
            color: var(--color-coral);
        }

        .version-details {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.6;
        }

        .version-details li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }

        .version-details li::before {
            content: '◆';
            color: var(--color-gold);
            font-size: 10px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .version-risk {
            padding: 10px 14px;
            border-radius: var(--radius-badge);
            background: rgba(232, 93, 61, 0.06);
            border: 1px solid rgba(232, 93, 61, 0.15);
            font-size: 12px;
            color: #B84A2F;
            line-height: 1.55;
            font-weight: 500;
        }

        .version-risk strong {
            color: var(--color-coral);
        }

        /* Comparison Table */
        .comparison-section {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 32px 28px;
            overflow-x: auto;
        }

        .comparison-table {
            width: 100%;
            min-width: 860px;
            border-collapse: collapse;
            font-size: 14px;
        }

        .comparison-table th {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            text-align: left;
            padding: 14px 16px;
            border-bottom: 2px solid var(--color-border-gold);
            background: var(--gradient-gold-soft);
            white-space: nowrap;
        }

        .comparison-table td {
            padding: 13px 16px;
            border-bottom: 1px solid var(--color-border);
            color: var(--color-muted);
            line-height: 1.55;
            vertical-align: top;
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tr:hover td {
            background: rgba(217, 164, 65, 0.04);
        }

        .comparison-table td:first-child {
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
        }

        .table-version-name {
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
        }

        /* Selection Guide */
        .select-guide {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            transition: all var(--transition-spring);
        }

        .guide-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
        }

        .guide-card h3 {
            font-family: var(--font-title);
            font-size: 19px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.35;
        }

        .guide-card p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        .guide-tag {
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
        }

        .guide-tag--green {
            background: rgba(42, 168, 126, 0.08);
            border-color: rgba(42, 168, 126, 0.2);
        }

        .guide-tag--coral {
            background: rgba(232, 93, 61, 0.06);
            border-color: rgba(232, 93, 61, 0.15);
        }

        /* Tips Panel */
        .tips-panel {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .tip-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: all var(--transition-base);
        }

        .tip-item:hover {
            border-color: var(--color-border-gold);
            box-shadow: var(--shadow-card-hover);
        }

        .tip-num {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 800;
            background: var(--gradient-btn);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1.2;
        }

        .tip-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.45;
        }

        .tip-item p {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.65;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-faq);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 16px rgba(15, 45, 58, 0.04);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--color-border-gold);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            text-align: left;
            transition: color var(--transition-base);
            position: relative;
        }

        .faq-question:hover {
            color: var(--color-gold);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-gold);
            transition: transform var(--transition-spring);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--gradient-btn);
            color: #fff;
            border-color: transparent;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            border-left: 3px solid var(--color-gold);
            padding-left: 14px;
        }

        /* CTA Section */
        .cta-banner {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 28px;
            align-items: center;
            padding: 36px 32px;
            border-radius: var(--radius-card);
            background: var(--gradient-deep-banner);
            border: 1px solid rgba(217, 164, 65, 0.2);
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .cta-banner>* {
            position: relative;
            z-index: 1;
        }

        .cta-banner h3 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .cta-banner p {
            font-size: 14px;
            color: rgba(232, 228, 218, 0.75);
            line-height: 1.65;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 700;
            letter-spacing: 0.01em;
            transition: all var(--transition-spring);
            white-space: nowrap;
            min-width: 140px;
            text-align: center;
        }

        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
            box-shadow: var(--shadow-btn);
            border: 1px solid rgba(217, 164, 65, 0.3);
        }

        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: var(--shadow-btn-hover);
        }

        .btn-primary:active {
            transform: translateY(0px);
            box-shadow: 0 4px 12px rgba(15, 45, 58, 0.2);
        }

        .btn-outline {
            background: transparent;
            color: var(--color-gold);
            border: 1px solid var(--color-border-gold);
            box-shadow: none;
        }

        .btn-outline:hover {
            color: var(--color-primary);
            background: rgba(217, 164, 65, 0.08);
            border-color: var(--color-gold);
            transform: translateY(-2px);
        }

        .btn-white {
            background: rgba(255, 255, 255, 0.92);
            color: var(--color-primary);
            box-shadow: 0 8px 24px rgba(15, 45, 58, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.5);
        }

        .btn-white:hover {
            background: #fff;
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: 0 16px 36px rgba(15, 45, 58, 0.35);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: #C8CFD2;
            padding: 48px 0 28px;
            margin-top: auto;
            border-top: 1px solid rgba(217, 164, 65, 0.15);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.1fr 2fr;
            gap: 40px;
            margin-bottom: 28px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-brand .nav-logo {
            font-size: 18px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(200, 207, 210, 0.7);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col h5 {
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .footer-col a {
            font-size: 13px;
            color: rgba(200, 207, 210, 0.75);
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--color-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(217, 164, 65, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: rgba(200, 207, 210, 0.55);
        }

        .footer-links-mini {
            display: flex;
            gap: 16px;
        }

        .footer-links-mini a {
            font-size: 12px;
            color: rgba(200, 207, 210, 0.55);
            transition: color var(--transition-base);
        }

        .footer-links-mini a:hover {
            color: var(--color-gold);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .version-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-panel {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .version-hero-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .version-hero-image img {
                min-height: 200px;
                max-height: 320px;
                object-fit: cover;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .section {
                padding: 48px 0;
            }
            .version-hero-content h1 {
                font-size: 28px;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .version-grid {
                grid-template-columns: 1fr;
            }
            .tips-panel {
                grid-template-columns: 1fr;
            }
            .select-guide {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                grid-template-columns: 1fr;
                padding: 28px 20px;
            }
            .cta-banner .btn {
                width: 100%;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                gap: 0;
                background: rgba(15, 45, 58, 0.98);
                padding: 16px 24px;
                border-bottom: 2px solid rgba(217, 164, 65, 0.2);
                box-shadow: var(--shadow-nav);
                border-radius: 0 0 16px 16px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links--left,
            .nav-links--right {
                gap: 0;
            }
            .nav-links a {
                display: block;
                padding: 12px 4px;
                font-size: 15px;
                border-bottom: 1px solid rgba(217, 164, 65, 0.08);
                width: 100%;
            }
            .nav-links a:last-child {
                border-bottom: none;
            }
            .nav-toggle {
                display: flex;
            }
            .site-header .container {
                justify-content: space-between;
            }
            .nav-logo {
                font-size: 17px;
                gap: 6px;
                margin: 0 auto;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 17px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-links-mini {
                justify-content: center;
            }
            .comparison-section {
                padding: 20px 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .version-hero-content h1 {
                font-size: 24px;
            }
            .section-heading h2 {
                font-size: 20px;
            }
            .footer-links {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .btn {
                min-width: 120px;
                padding: 12px 20px;
                font-size: 14px;
            }
            .version-card {
                padding: 20px 16px;
            }
            .version-name {
                font-size: 18px;
            }
            .cta-banner h3 {
                font-size: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 56px 0;
            position: relative;
        }
        .section--tight {
            padding: 40px 0;
        }
        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }
        .section--gradient-banner {
            background: var(--gradient-deep-banner);
            color: #F5F1E8;
            padding: 52px 0;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 32px;
        }
        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }
        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }
        .section--deep .section-heading h2,
        .section--gradient-banner .section-heading h2 {
            color: #F5EFE2;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            max-width: 720px;
        }
        .section--deep .section-heading p,
        .section--gradient-banner .section-heading p {
            color: rgba(245, 241, 232, 0.75);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-primary-deep);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            width: 100%;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F5EFE2;
            letter-spacing: 0.02em;
            transition: color var(--transition-base);
            z-index: 1002;
            margin: 0 20px;
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--gradient-brand);
            border-radius: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
        }
        .nav-links--left {
            margin-right: auto;
        }
        .nav-links--right {
            margin-left: auto;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(245, 241, 232, 0.82);
            border-radius: 8px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.1);
        }
        .nav-links a.active {
            color: var(--color-gold);
            background: rgba(217, 164, 65, 0.12);
            position: relative;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            border-radius: 2px;
            background: var(--color-gold);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            z-index: 1002;
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: #F5EFE2;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--color-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--color-gold);
        }
        .breadcrumb .separator {
            color: var(--color-border-gold);
            font-weight: 600;
        }
        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Page Hero */
        .page-hero {
            background: var(--gradient-deep-banner);
            padding: 40px 0 36px;
            color: #F5F1E8;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .page-hero h1 {
            font-family: var(--font-title);
            font-size: 34px;
            font-weight: 800;
            line-height: 1.28;
            color: #F5EFE2;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .page-hero p {
            font-size: 16px;
            line-height: 1.7;
            color: rgba(245, 241, 232, 0.78);
            max-width: 720px;
        }
        .page-hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            color: var(--color-primary);
            white-space: nowrap;
        }
        .badge--gold {
            background: rgba(217, 164, 65, 0.18);
            border-color: rgba(217, 164, 65, 0.35);
            color: var(--color-gold-light);
        }
        .badge--coral {
            background: rgba(232, 93, 61, 0.12);
            border-color: rgba(232, 93, 61, 0.3);
            color: #F5B8A5;
        }
        .badge--green {
            background: rgba(42, 168, 126, 0.12);
            border-color: rgba(42, 168, 126, 0.3);
            color: #8DD6B8;
        }
        .badge--deep {
            background: rgba(15, 45, 58, 0.08);
            border-color: rgba(15, 45, 58, 0.15);
            color: var(--color-primary);
        }

        /* Filter Sidebar + Article Cards Layout */
        .guide-layout {
            display: grid;
            grid-template-columns: 240px 1fr;
            gap: 28px;
            align-items: start;
        }
        .filter-sidebar {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 20px 16px;
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .filter-sidebar h3 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border);
        }
        .filter-group {
            margin-bottom: 16px;
        }
        .filter-group:last-child {
            margin-bottom: 0;
        }
        .filter-group h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-muted);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }
        .filter-group ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .filter-group a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 7px 10px;
            border-radius: 8px;
            font-size: 13.5px;
            color: var(--color-muted);
            transition: all var(--transition-base);
        }
        .filter-group a:hover {
            color: var(--color-primary);
            background: var(--gradient-gold-soft);
        }
        .filter-group a.active {
            color: var(--color-gold);
            background: rgba(217, 164, 65, 0.1);
            font-weight: 600;
        }
        .filter-count {
            margin-left: auto;
            font-size: 11px;
            color: var(--color-muted);
            background: var(--color-bg);
            border-radius: 6px;
            padding: 2px 6px;
            font-weight: 500;
        }

        /* Article Cards */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .article-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
        }
        .article-card .card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            border-radius: 0;
        }
        .article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition-base);
        }
        .article-card:hover .card-img img {
            transform: scale(1.04);
        }
        .article-card .card-img .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 45, 58, 0.55) 0%, transparent 60%);
        }
        .article-card .card-body {
            padding: 18px 18px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-body h3 {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .article-card .card-body .card-summary {
            font-size: 13.5px;
            color: var(--color-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            flex: 1;
        }
        .article-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }
        .article-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-gold);
            transition: color var(--transition-base), gap var(--transition-base);
            cursor: pointer;
        }
        .article-card .card-link:hover {
            color: var(--color-coral);
            gap: 10px;
        }
        .card-link .arrow {
            font-size: 16px;
            font-weight: 700;
        }

        /* Data Strip */
        .data-strip {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-item {
            text-align: center;
            padding: 8px 4px;
        }
        .data-item .data-value {
            font-size: 28px;
            font-weight: 800;
            font-family: var(--font-title);
            color: var(--color-primary);
            line-height: 1.2;
            display: block;
        }
        .data-item .data-label {
            font-size: 12.5px;
            color: var(--color-muted);
            margin-top: 4px;
            line-height: 1.4;
        }

        /* Advanced Tips */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .tip-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 22px 20px;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .tip-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .tip-card .tip-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--gradient-brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .tip-card h3 {
            font-family: var(--font-title);
            font-size: 17px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .tip-card p {
            font-size: 13.5px;
            color: var(--color-muted);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .tip-card .badge {
            font-size: 12px;
            padding: 4px 10px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-faq);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 14px rgba(15, 45, 58, 0.05);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border-gold);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-primary);
            transition: color var(--transition-base);
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--color-gold);
        }
        .faq-question .faq-icon {
            width: 26px;
            height: 26px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-gold);
            transition: transform var(--transition-base);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 16px;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: rgba(232, 93, 61, 0.12);
            border-color: rgba(232, 93, 61, 0.3);
            color: var(--color-coral);
        }
        .faq-answer-inner {
            border-left: 3px solid var(--color-gold);
            padding-left: 14px;
        }

        /* CTA */
        .cta-banner {
            background: var(--gradient-deep-banner);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            pointer-events: none;
        }
        .cta-banner .cta-content {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 260px;
        }
        .cta-banner h2 {
            font-family: var(--font-title);
            font-size: 24px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .cta-banner p {
            font-size: 14px;
            color: rgba(245, 241, 232, 0.75);
            line-height: 1.65;
            max-width: 520px;
        }
        .cta-banner .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
            min-width: 120px;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-outline {
            border: 1px solid var(--color-gold);
            color: var(--color-gold);
            background: transparent;
        }
        .btn-outline:hover {
            background: rgba(217, 164, 65, 0.1);
            color: var(--color-gold-light);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-light {
            background: #F5F1E8;
            color: var(--color-primary);
            box-shadow: var(--shadow-btn);
        }
        .btn-light:hover {
            background: var(--color-gold-light);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: #E8E4DA;
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .nav-logo {
            margin: 0 0 12px;
            font-size: 20px;
        }
        .footer-brand p {
            font-size: 13.5px;
            color: rgba(232, 228, 218, 0.65);
            line-height: 1.65;
            max-width: 380px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-gold);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: rgba(232, 228, 218, 0.7);
            margin-bottom: 6px;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold-light);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(232, 228, 218, 0.12);
            font-size: 12px;
            color: rgba(232, 228, 218, 0.5);
        }
        .footer-links-mini {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }
        .footer-links-mini a {
            font-size: 12px;
            color: rgba(232, 228, 218, 0.5);
            transition: color var(--transition-base);
        }
        .footer-links-mini a:hover {
            color: var(--color-gold-light);
        }

        /* Mobile Nav Drawer */
        .nav-drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 45, 58, 0.6);
            z-index: 1001;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-drawer-overlay.show {
            opacity: 1;
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .guide-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .filter-sidebar {
                position: static;
            }
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .nav-links a {
                padding: 6px 10px;
                font-size: 13px;
            }
            .nav-links {
                gap: 2px;
            }
            .nav-logo {
                font-size: 19px;
                margin: 0 12px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 17px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --nav-height: 60px;
            }
            .section {
                padding: 40px 0;
            }
            .section-heading h2 {
                font-size: 24px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .article-grid {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
                padding: 16px;
            }
            .data-item .data-value {
                font-size: 22px;
            }
            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }
            .cta-banner h2 {
                font-size: 20px;
            }
            .btn {
                min-width: 100%;
                padding: 12px 20px;
            }
            .footer-links {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-links-mini {
                margin-left: 0;
            }

            /* Mobile nav */
            .site-header .container {
                justify-content: center;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--color-primary-deep);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 4px;
                z-index: 1000;
                padding: 80px 20px 40px;
                overflow-y: auto;
            }
            .nav-links--left,
            .nav-links--right {
                margin: 0;
                display: flex;
                flex-direction: column;
                width: 100%;
                align-items: center;
            }
            .nav-links a {
                font-size: 17px;
                padding: 14px 20px;
                width: 100%;
                max-width: 320px;
                justify-content: center;
                border-radius: 10px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-drawer-overlay.show {
                display: block;
            }
            .nav-links.show {
                display: flex;
            }
        }

        @media (max-width: 420px) {
            .page-hero h1 {
                font-size: 22px;
            }
            .section-heading h2 {
                font-size: 21px;
            }
            .article-card .card-body h3 {
                font-size: 15px;
            }
            .data-item .data-value {
                font-size: 19px;
            }
            .container {
                padding: 0 16px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 64px 0;
            position: relative;
        }
        .section--tight {
            padding: 40px 0;
        }
        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 32px;
        }
        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }
        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 10px;
        }
        .section--deep .section-heading h2 {
            color: #F5EFE2;
        }
        .section-heading p {
            font-size: 15px;
            color: var(--color-muted);
            max-width: 720px;
            line-height: 1.7;
        }
        .section--deep .section-heading p {
            color: #B8C9C9;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-primary-deep);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(217, 164, 65, 0.2);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F5EFE2;
            white-space: nowrap;
            letter-spacing: 0.02em;
        }
        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: var(--gradient-btn);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            box-shadow: var(--shadow-btn);
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
        }
        .nav-links a {
            display: inline-block;
            padding: 8px 13px;
            font-size: 14px;
            font-weight: 500;
            color: #CFDAD8;
            border-radius: 8px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.1);
        }
        .nav-links a.active {
            color: var(--color-gold-light);
            border-bottom: 2px solid var(--color-gold);
            border-radius: 0;
            font-weight: 600;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F5EFE2;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .nav-links--left {
            flex: 1;
            justify-content: center;
        }
        .nav-links--right {
            flex: 1;
            justify-content: center;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
            font-size: 13px;
            color: var(--color-muted);
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--color-primary);
            font-weight: 500;
        }
        .breadcrumb-bar a:hover {
            color: var(--color-gold);
        }
        .breadcrumb-bar .separator {
            color: #B8C9C9;
            font-size: 12px;
        }
        .breadcrumb-bar .current {
            color: var(--color-gold);
            font-weight: 600;
        }

        /* Page Banner */
        .page-banner {
            background: var(--gradient-deep-banner);
            padding: 56px 0 48px;
            color: #F5EFE2;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(217, 164, 65, 0.3) 0%, transparent 65%);
            pointer-events: none;
        }
        .page-banner .container {
            position: relative;
            z-index: 1;
        }
        .page-banner h1 {
            font-family: var(--font-title);
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            color: #F5EFE2;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }
        .page-banner .subtitle {
            font-size: 16px;
            color: #D5E0DC;
            max-width: 800px;
            line-height: 1.7;
        }
        .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }
        .banner-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(217, 164, 65, 0.3);
            color: #E8C87A;
        }

        /* KPI Data Strip */
        .kpi-strip {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 32px 0;
        }
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 14px;
        }
        .kpi-card {
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .kpi-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .kpi-card .kpi-value {
            font-size: 28px;
            font-weight: 800;
            font-family: var(--font-title);
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
        }
        .kpi-card .kpi-value .unit {
            font-size: 14px;
            font-weight: 500;
            color: var(--color-gold);
            margin-left: 2px;
        }
        .kpi-card .kpi-label {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 6px;
            font-weight: 500;
        }
        .kpi-card .kpi-desc {
            font-size: 11px;
            color: #8A9BA5;
            margin-top: 4px;
        }

        /* Mechanism Cards */
        .mechanism-section {
            background: var(--color-bg);
        }
        .mechanism-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 8px;
        }
        .mechanism-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .mechanism-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .mechanism-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--gradient-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            margin-bottom: 16px;
            box-shadow: var(--shadow-btn);
        }
        .mechanism-card h3 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
        }
        .mechanism-card p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .mechanism-card ul {
            list-style: none;
            padding: 0;
        }
        .mechanism-card ul li {
            position: relative;
            padding-left: 22px;
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .mechanism-card ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-gold);
        }
        .mechanism-card .data-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: var(--radius-badge);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            color: var(--color-primary);
            margin-top: 8px;
        }
        .mechanism-card .data-badge .badge-num {
            font-weight: 800;
            color: var(--color-gold);
        }

        /* Mechanism Detail with image */
        .mechanism-detail {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
            margin-top: 24px;
            align-items: stretch;
        }
        .mechanism-detail .detail-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }
        .mechanism-detail .detail-card h3 {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
        }
        .mechanism-detail .detail-card p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .mechanism-detail .detail-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            min-height: 280px;
        }
        .mechanism-detail .detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-card);
        }
        .mechanism-detail .detail-image .overlay-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            background: rgba(15, 45, 58, 0.85);
            color: #F5EFE2;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-badge);
            border: 1px solid rgba(217, 164, 65, 0.4);
            backdrop-filter: blur(6px);
        }
        .mechanism-detail .detail-image .overlay-tag .highlight {
            color: var(--color-gold-light);
            font-weight: 700;
        }

        /* Rate Table Cards */
        .rate-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 24px;
        }
        .rate-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            text-align: center;
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .rate-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }
        .rate-card .rate-value {
            font-size: 36px;
            font-weight: 800;
            font-family: var(--font-title);
            color: var(--color-primary);
            line-height: 1.2;
        }
        .rate-card .rate-value .unit {
            font-size: 16px;
            color: var(--color-gold);
            font-weight: 600;
        }
        .rate-card .rate-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text);
            margin-top: 8px;
        }
        .rate-card .rate-desc {
            font-size: 12px;
            color: #8A9BA5;
            margin-top: 4px;
        }
        .rate-card.featured {
            background: var(--color-primary-deep);
            border-color: rgba(217, 164, 65, 0.3);
        }
        .rate-card.featured .rate-value {
            color: #F5EFE2;
        }
        .rate-card.featured .rate-label {
            color: #E8C87A;
        }
        .rate-card.featured .rate-desc {
            color: #B8C9C9;
        }

        /* Risk Alert */
        .risk-alert {
            background: var(--gradient-gold-soft);
            border: 1.5px solid var(--color-coral);
            border-radius: var(--radius-card);
            padding: 22px 26px;
            margin-top: 28px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
        .risk-alert .alert-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--color-coral);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
        }
        .risk-alert .alert-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--color-coral);
            margin-bottom: 8px;
        }
        .risk-alert .alert-content p {
            font-size: 14px;
            color: var(--color-text);
            line-height: 1.7;
        }
        .risk-alert .alert-content ul {
            margin-top: 8px;
            padding-left: 18px;
        }
        .risk-alert .alert-content ul li {
            font-size: 13px;
            color: var(--color-muted);
            line-height: 1.6;
            margin-bottom: 4px;
        }

        /* FAQ */
        .faq-section {
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            padding: 56px 0;
        }
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-faq);
            overflow: hidden;
            transition: box-shadow var(--transition-base);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }
        .faq-item.open {
            border-left: 4px solid var(--color-gold);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            width: 100%;
            text-align: left;
            gap: 12px;
            transition: background var(--transition-base);
        }
        .faq-question:hover {
            background: rgba(217, 164, 65, 0.06);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-gold);
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: var(--gradient-deep-banner);
            padding: 56px 0;
            color: #F5EFE2;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 10px;
        }
        .cta-text p {
            font-size: 15px;
            color: #D5E0DC;
            max-width: 600px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
            white-space: nowrap;
            min-width: 120px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-btn-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-btn);
        }
        .btn-outline {
            border: 1.5px solid var(--color-gold);
            color: var(--color-gold-light);
            background: rgba(255, 255, 255, 0.06);
        }
        .btn-outline:hover {
            background: rgba(217, 164, 65, 0.15);
            transform: translateY(-3px);
            color: var(--color-gold-light);
            box-shadow: var(--shadow-btn);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            min-width: auto;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: #B8C9C9;
            padding: 48px 0 0;
            margin-top: auto;
        }
        .site-footer .footer-top {
            display: grid;
            grid-template-columns: 1.1fr 1.9fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(217, 164, 65, 0.15);
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: #9AB0AE;
            margin-top: 14px;
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .site-footer .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: #E8C87A;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .site-footer .footer-col a {
            display: block;
            font-size: 14px;
            color: #B8C9C9;
            padding: 5px 0;
            transition: color var(--transition-base);
        }
        .site-footer .footer-col a:hover {
            color: var(--color-gold-light);
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            padding: 18px 0;
            font-size: 12px;
            color: #7A9397;
        }
        .site-footer .footer-bottom span {
            white-space: nowrap;
        }
        .site-footer .footer-links-mini {
            display: flex;
            gap: 14px;
        }
        .site-footer .footer-links-mini a {
            font-size: 12px;
            color: #7A9397;
            transition: color var(--transition-base);
        }
        .site-footer .footer-links-mini a:hover {
            color: var(--color-gold-light);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .kpi-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .mechanism-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .mechanism-detail {
                grid-template-columns: 1fr;
            }
            .rate-cards {
                grid-template-columns: repeat(3, 1fr);
                gap: 12px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .nav-links--left,
            .nav-links--right {
                flex: none;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .site-header .container {
                flex-wrap: wrap;
                gap: 0;
            }
            .nav-toggle {
                display: flex;
                order: 1;
            }
            .nav-logo {
                order: 2;
                flex: 1;
                justify-content: center;
                font-size: 18px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 17px;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-primary-deep);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 20px 20px;
                gap: 4px;
                box-shadow: var(--shadow-nav);
                border-bottom: 2px solid rgba(217, 164, 65, 0.3);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-links a.active {
                border-bottom: 1px solid rgba(217, 164, 65, 0.4);
                background: rgba(217, 164, 65, 0.1);
                border-radius: 8px;
            }
            .page-banner {
                padding: 36px 0 32px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner .subtitle {
                font-size: 14px;
            }
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            .kpi-card .kpi-value {
                font-size: 22px;
            }
            .kpi-card .kpi-label {
                font-size: 11px;
            }
            .mechanism-card {
                padding: 20px;
            }
            .mechanism-card h3 {
                font-size: 18px;
            }
            .rate-cards {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .rate-card .rate-value {
                font-size: 30px;
            }
            .risk-alert {
                flex-direction: column;
                gap: 12px;
                padding: 18px 20px;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-grid {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-text h2 {
                font-size: 22px;
            }
            .cta-actions {
                width: 100%;
            }
            .btn {
                flex: 1;
                min-width: 0;
                padding: 12px 18px;
                font-size: 14px;
            }
            .site-footer .footer-top {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-links {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                padding: 44px 0;
            }
        }

        @media (max-width: 520px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 6px;
            }
            .kpi-card {
                padding: 14px 10px;
            }
            .kpi-card .kpi-value {
                font-size: 19px;
            }
            .kpi-card .kpi-label {
                font-size: 10px;
            }
            .kpi-card .kpi-desc {
                font-size: 9px;
            }
            .site-footer .footer-links {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .breadcrumb-bar {
                font-size: 11px;
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .mechanism-detail .detail-image {
                min-height: 180px;
            }
            .risk-alert .alert-content h4 {
                font-size: 15px;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--color-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        button {
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
            position: relative;
        }

        .section--tight {
            padding: 48px 0;
        }

        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }

        .section--gradient-banner {
            background: var(--gradient-deep-banner);
            color: #F5F1E8;
            padding: 64px 0;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 36px;
        }

        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }

        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }

        .section--deep .section-heading h2,
        .section--gradient-banner .section-heading h2 {
            color: #F5EFE2;
        }

        .section-heading p {
            font-size: 16px;
            color: var(--color-muted);
            max-width: 720px;
            line-height: 1.7;
        }

        .section--deep .section-heading p,
        .section--gradient-banner .section-heading p {
            color: rgba(232, 228, 218, 0.75);
        }

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(14, 40, 50, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(217, 164, 65, 0.18);
            box-shadow: var(--shadow-nav);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 100%;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            transition: background var(--transition-base);
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: #E8E4DA;
            border-radius: 2px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(217, 164, 65, 0.2);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 800;
            color: #F5EFE2;
            letter-spacing: 0.02em;
            white-space: nowrap;
            transition: color var(--transition-base);
        }

        .nav-logo:hover {
            color: var(--color-gold-light);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--gradient-btn);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            font-family: var(--font-title);
            box-shadow: 0 4px 12px rgba(15, 45, 58, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .nav-links--left {
            flex: 1;
            justify-content: flex-end;
            margin-right: 12px;
        }

        .nav-links--right {
            flex: 1;
            justify-content: flex-start;
            margin-left: 12px;
        }

        .nav-links a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14.5px;
            font-weight: 500;
            color: rgba(232, 228, 218, 0.82);
            border-radius: 10px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.1);
        }

        .nav-links a.active {
            color: var(--color-gold);
            font-weight: 600;
            background: rgba(217, 164, 65, 0.12);
            box-shadow: inset 0 -2px 0 var(--color-gold);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(232, 228, 218, 0.65);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--color-gold-light);
            transition: color var(--transition-base);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .separator {
            color: rgba(232, 228, 218, 0.4);
        }

        .breadcrumb .current {
            color: rgba(232, 228, 218, 0.85);
            font-weight: 500;
        }

        /* Hero */
        .hero-scene {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            position: relative;
            padding: 80px 0 72px;
            color: #F5F1E8;
            min-height: 520px;
            display: flex;
            align-items: center;
        }

        .hero-scene::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(140deg, rgba(14, 40, 50, 0.92) 0%, rgba(15, 45, 58, 0.78) 40%, rgba(28, 74, 92, 0.55) 70%, rgba(217, 164, 65, 0.35) 100%);
            z-index: 1;
        }

        .hero-scene .container {
            position: relative;
            z-index: 2;
        }

        .hero-scene-inner {
            max-width: 680px;
        }

        .hero-scene h1 {
            font-family: var(--font-title);
            font-size: 42px;
            font-weight: 900;
            line-height: 1.22;
            color: #F5EFE2;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
        }

        .hero-scene .hero-subtitle {
            font-size: 17px;
            color: rgba(232, 228, 218, 0.85);
            line-height: 1.75;
            margin-bottom: 28px;
            max-width: 600px;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 30px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all var(--transition-base);
            min-width: 120px;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-btn);
        }

        .btn-outline-light {
            background: transparent;
            color: #F5EFE2;
            border: 1px solid rgba(217, 164, 65, 0.5);
            box-shadow: none;
        }

        .btn-outline-light:hover {
            background: rgba(217, 164, 65, 0.15);
            border-color: var(--color-gold);
            color: var(--color-gold-light);
            transform: translateY(-2px);
        }

        .btn-outline-light:active {
            transform: translateY(1px);
        }

        .hero-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            border-radius: var(--radius-badge);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(217, 164, 65, 0.28);
            color: #E8E4DA;
            white-space: nowrap;
        }

        .badge-gold {
            background: rgba(217, 164, 65, 0.18);
            border-color: rgba(217, 164, 65, 0.42);
            color: var(--color-gold-light);
        }

        .badge-coral {
            background: rgba(232, 93, 61, 0.14);
            border-color: rgba(232, 93, 61, 0.35);
            color: #F0A18F;
        }

        .badge-green {
            background: rgba(42, 168, 126, 0.14);
            border-color: rgba(42, 168, 126, 0.35);
            color: #6FD6AE;
        }

        /* Timeline Section */
        .scene-timeline-section {
            background: var(--color-bg);
            padding: 72px 0;
        }

        .timeline-list {
            display: flex;
            flex-direction: column;
            gap: 24px;
            margin-top: 40px;
        }

        .timeline-card {
            display: grid;
            grid-template-columns: 220px 1fr;
            gap: 24px;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 28px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .timeline-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            bottom: 0;
            width: 4px;
            background: var(--gradient-btn);
            border-radius: 4px 0 0 4px;
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .timeline-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .timeline-card:hover::before {
            opacity: 1;
        }

        .timeline-card-left {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .timeline-scene-name {
            font-family: var(--font-title);
            font-size: 21px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
        }

        .timeline-scene-meta {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .timeline-scene-meta .badge {
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            color: var(--color-primary);
            font-size: 12px;
            padding: 6px 12px;
            align-self: flex-start;
        }

        .timeline-card-right {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .timeline-card-right p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
        }

        .timeline-points {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .timeline-points li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--color-text);
            line-height: 1.65;
        }

        .timeline-points li::before {
            content: '◆';
            color: var(--color-gold);
            font-size: 12px;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .timeline-badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }

        .timeline-badge-row .badge {
            font-size: 12px;
            padding: 5px 11px;
            background: rgba(15, 45, 58, 0.05);
            border: 1px solid var(--color-border);
            color: var(--color-primary);
        }

        /* Data strip */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 40px;
        }

        .data-strip-item {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .data-strip-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .data-strip-number {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.01em;
            margin-bottom: 6px;
        }

        .data-strip-number .unit {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-gold);
            margin-left: 2px;
        }

        .data-strip-label {
            font-size: 13px;
            color: var(--color-muted);
            font-weight: 500;
        }

        /* CTA Banner */
        .cta-banner {
            background: var(--gradient-deep-banner);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: multiply;
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            border: 1px solid rgba(217, 164, 65, 0.3);
            box-shadow: var(--shadow-card);
            margin-top: 48px;
        }

        .cta-banner-text h3 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 8px;
        }

        .cta-banner-text p {
            font-size: 15px;
            color: rgba(232, 228, 218, 0.78);
            max-width: 500px;
            line-height: 1.65;
        }

        /* FAQ */
        .faq-section {
            background: var(--color-white);
            padding: 64px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 32px;
            max-width: 860px;
        }

        .faq-item {
            background: var(--color-bg);
            border-radius: var(--radius-faq);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--color-border-gold);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            background: transparent;
            transition: background var(--transition-base);
        }

        .faq-question:hover {
            background: rgba(217, 164, 65, 0.06);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-gold);
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            border-left: 4px solid var(--color-gold);
            padding-left: 16px;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: rgba(232, 228, 218, 0.75);
            padding: 56px 0 24px;
            margin-top: auto;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.2fr 2fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(217, 164, 65, 0.15);
        }

        .footer-brand .nav-logo {
            font-size: 22px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(232, 228, 218, 0.6);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-gold);
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 13.5px;
            color: rgba(232, 228, 218, 0.65);
            padding: 5px 0;
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--color-gold-light);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            font-size: 12.5px;
            color: rgba(232, 228, 218, 0.5);
        }

        .footer-links-mini {
            display: flex;
            gap: 14px;
        }

        .footer-links-mini a {
            color: rgba(232, 228, 218, 0.55);
            font-size: 12.5px;
            transition: color var(--transition-base);
        }

        .footer-links-mini a:hover {
            color: var(--color-gold-light);
        }

        /* Mobile nav drawer */
        @media (max-width: 1024px) {
            .nav-links--left,
            .nav-links--right {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .site-header .container {
                justify-content: space-between;
            }

            .nav-logo {
                margin: 0 auto;
            }

            .nav-toggle {
                order: -1;
            }

            .mobile-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(14, 40, 50, 0.98);
                backdrop-filter: blur(12px);
                border-bottom: 1px solid rgba(217, 164, 65, 0.2);
                box-shadow: var(--shadow-nav);
                padding: 16px 24px 24px;
                z-index: 999;
            }

            .mobile-nav.open {
                display: block;
            }

            .mobile-nav .nav-group-title {
                font-size: 12px;
                font-weight: 700;
                letter-spacing: 0.06em;
                color: var(--color-gold);
                text-transform: uppercase;
                margin-bottom: 8px;
                margin-top: 16px;
            }

            .mobile-nav .nav-group-title:first-child {
                margin-top: 0;
            }

            .mobile-nav a {
                display: block;
                padding: 10px 14px;
                font-size: 15px;
                color: rgba(232, 228, 218, 0.82);
                border-radius: 10px;
                transition: background var(--transition-base), color var(--transition-base);
            }

            .mobile-nav a:hover {
                background: rgba(217, 164, 65, 0.1);
                color: var(--color-gold-light);
            }

            .mobile-nav a.active {
                color: var(--color-gold);
                background: rgba(217, 164, 65, 0.12);
                font-weight: 600;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }

            .section {
                padding: 48px 0;
            }

            .section--tight {
                padding: 32px 0;
            }

            .container {
                padding: 0 18px;
            }

            .hero-scene {
                min-height: auto;
                padding: 48px 0 40px;
            }

            .hero-scene h1 {
                font-size: 30px;
            }

            .hero-scene .hero-subtitle {
                font-size: 15px;
            }

            .hero-cta-row {
                flex-direction: column;
            }

            .btn {
                width: 100%;
                min-width: 0;
            }

            .hero-badge-row {
                gap: 6px;
            }

            .badge {
                font-size: 11px;
                padding: 6px 10px;
            }

            .section-heading h2 {
                font-size: 24px;
            }

            .section-heading p {
                font-size: 14px;
            }

            .timeline-card {
                grid-template-columns: 1fr;
                padding: 20px;
                gap: 16px;
            }

            .timeline-card-left {
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                gap: 12px;
            }

            .timeline-scene-name {
                font-size: 18px;
            }

            .timeline-card-right p {
                font-size: 14px;
            }

            .timeline-points li {
                font-size: 13.5px;
            }

            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .data-strip-number {
                font-size: 24px;
            }

            .cta-banner {
                padding: 28px 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-banner-text h3 {
                font-size: 21px;
            }

            .faq-question {
                font-size: 14.5px;
                padding: 15px 16px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }

            .faq-answer p {
                font-size: 14px;
                padding-left: 12px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-links {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .hero-scene h1 {
                font-size: 26px;
            }

            .footer-links {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .data-strip-item {
                padding: 16px 12px;
            }

            .data-strip-number {
                font-size: 20px;
            }

            .cta-banner {
                padding: 22px 16px;
            }

            .badge {
                font-size: 10px;
                padding: 5px 8px;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 64px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }
        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 64px 0;
            position: relative;
        }
        .section--tight {
            padding: 40px 0;
        }
        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }

        /* Header */
        .site-header {
            background: rgba(14, 40, 50, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(217, 164, 65, 0.18);
            position: sticky;
            top: 0;
            z-index: 999;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-nav);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            gap: 16px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            padding: 6px;
            position: absolute;
            left: 24px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 1001;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 3px;
            transition: all var(--transition-base);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-size: 22px;
            font-weight: 800;
            color: #F5EFE2;
            letter-spacing: 0.03em;
            white-space: nowrap;
            z-index: 1001;
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--gradient-btn);
            border-radius: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 4px 14px rgba(217, 164, 65, 0.35);
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
        }
        .nav-links a {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: #D8D4CB;
            padding: 8px 13px;
            border-radius: 8px;
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.08);
        }
        .nav-links a.active {
            color: var(--color-gold);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 13px;
            right: 13px;
            bottom: 3px;
            height: 2px;
            background: var(--color-gold);
            border-radius: 2px;
        }
        .nav-links--left {
            margin-right: 10px;
        }
        .nav-links--right {
            margin-left: 10px;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: rgba(15, 45, 58, 0.04);
            border-bottom: 1px solid var(--color-border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-primary);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--color-gold);
        }
        .breadcrumb .sep {
            color: var(--color-gold);
            font-weight: 600;
        }
        .breadcrumb .current {
            color: var(--color-gold);
            font-weight: 600;
        }

        /* Page Hero */
        .page-hero {
            background: var(--gradient-deep-banner);
            padding: 56px 0 64px;
            color: #F5EFE2;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-family: var(--font-title);
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            color: #F5EFE2;
            letter-spacing: 0.01em;
            margin-bottom: 14px;
        }
        .page-hero .hero-sub {
            font-size: 17px;
            line-height: 1.75;
            color: #D8D4CB;
            max-width: 720px;
            margin-bottom: 20px;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-badges .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: rgba(217, 164, 65, 0.15);
            border: 1px solid var(--color-border-gold);
            color: var(--color-gold-light);
        }

        /* FAQ Layout */
        .faq-layout {
            display: grid;
            grid-template-columns: 300px 1fr;
            gap: 36px;
            align-items: start;
        }
        .faq-sidebar {
            position: sticky;
            top: calc(var(--nav-height) + 24px);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-sidebar-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 24px 20px;
        }
        .faq-sidebar-card h3 {
            font-family: var(--font-title);
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-border-gold);
        }
        .faq-sidebar-card .side-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            padding: 10px 12px;
            border-radius: 10px;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .faq-sidebar-card .side-link:hover {
            background: var(--gradient-gold-soft);
            border-color: var(--color-border-gold);
            color: var(--color-primary);
        }
        .faq-sidebar-card .side-link .icon {
            font-size: 16px;
            color: var(--color-gold);
        }
        .faq-sidebar-card .side-link .count {
            font-size: 12px;
            color: var(--color-muted);
            font-weight: 400;
        }
        .faq-sidebar-cta {
            background: var(--gradient-btn);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .faq-sidebar-cta h4 {
            font-family: var(--font-title);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .faq-sidebar-cta p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 14px;
            line-height: 1.6;
        }
        .faq-sidebar-cta .btn {
            background: #fff;
            color: var(--color-primary);
            font-weight: 600;
            padding: 9px 18px;
            border-radius: var(--radius-btn);
            display: inline-block;
            font-size: 13px;
            transition: all var(--transition-base);
        }
        .faq-sidebar-cta .btn:hover {
            background: var(--color-gold-light);
            transform: translateY(-2px);
        }

        /* FAQ Main */
        .faq-main {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .faq-group {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }
        .faq-group-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: rgba(15, 45, 58, 0.03);
            border-bottom: 1px solid var(--color-border);
            cursor: pointer;
            transition: background var(--transition-base);
        }
        .faq-group-header:hover {
            background: rgba(217, 164, 65, 0.06);
        }
        .faq-group-header h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .faq-group-header h3 .icon {
            font-size: 20px;
            color: var(--color-gold);
        }
        .faq-group-header .toggle-arrow {
            transition: transform var(--transition-base);
            font-size: 16px;
            color: var(--color-muted);
        }
        .faq-group.open .toggle-arrow {
            transform: rotate(180deg);
        }
        .faq-group-body {
            display: none;
            flex-direction: column;
            padding: 8px 0;
        }
        .faq-group.open .faq-group-body {
            display: flex;
        }
        .faq-item {
            border-bottom: 1px solid var(--color-border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-item-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 24px;
            cursor: pointer;
            transition: background var(--transition-base);
        }
        .faq-item-header:hover {
            background: rgba(217, 164, 65, 0.04);
        }
        .faq-item-header .q-text {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            flex: 1;
        }
        .faq-item-header .q-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--color-border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--color-gold);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .q-icon {
            transform: rotate(45deg);
            background: var(--gradient-gold-soft);
        }
        .faq-item-answer {
            display: none;
            padding: 0 24px 18px 58px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-muted);
        }
        .faq-item.open .faq-item-answer {
            display: block;
        }
        .faq-item-answer strong {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Safety Tips */
        .safety-strip {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-coral);
            border-left: 5px solid var(--color-coral);
            box-shadow: var(--shadow-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .safety-strip .icon {
            font-size: 28px;
            flex-shrink: 0;
        }
        .safety-strip h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-coral);
            margin-bottom: 4px;
        }
        .safety-strip p {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.65;
        }

        /* CTA Section */
        .cta-section {
            background: var(--gradient-deep-banner);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }
        .cta-section .cta-text h2 {
            font-family: var(--font-title);
            font-size: 28px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 8px;
        }
        .cta-section .cta-text p {
            font-size: 15px;
            color: #D8D4CB;
            line-height: 1.7;
            max-width: 500px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            white-space: nowrap;
            min-width: 120px;
        }
        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-btn-hover);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(15, 45, 58, 0.2);
        }
        .btn-secondary {
            border: 1px solid var(--color-border-gold);
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.08);
        }
        .btn-secondary:hover {
            border-color: var(--color-gold);
            background: rgba(217, 164, 65, 0.18);
            color: var(--color-gold-light);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: #B8C4CA;
            padding: 48px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.3fr 2fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(217, 164, 65, 0.15);
        }
        .footer-brand .nav-logo {
            font-size: 20px;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: #98A8AE;
            max-width: 340px;
        }
        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-gold-light);
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: #98A8AE;
            padding: 5px 0;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold-light);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 12px;
            color: #7A8C94;
        }
        .footer-links-mini {
            display: flex;
            gap: 16px;
        }
        .footer-links-mini a {
            font-size: 12px;
            color: #7A8C94;
        }
        .footer-links-mini a:hover {
            color: var(--color-gold-light);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .faq-layout {
                grid-template-columns: 1fr;
            }
            .faq-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: 12px;
            }
            .faq-sidebar-card {
                flex: 1;
                min-width: 240px;
            }
            .faq-sidebar-cta {
                flex: 1;
                min-width: 240px;
            }
            .nav-links--left {
                margin-right: 4px;
            }
            .nav-links--right {
                margin-left: 4px;
            }
            .nav-links a {
                padding: 8px 9px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --nav-height: 60px;
            }
            .section {
                padding: 40px 0;
            }
            .site-header .container {
                justify-content: center;
                gap: 0;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--color-primary-deep);
                padding: 16px 24px;
                gap: 4px;
                border-bottom: 2px solid var(--color-border-gold);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
                z-index: 1000;
            }
            .nav-links--left {
                margin: 0;
            }
            .nav-links--right {
                margin: 0;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 14px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(217, 164, 65, 0.12);
            }
            .nav-logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 17px;
            }
            .page-hero {
                padding: 36px 0 42px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .faq-sidebar {
                flex-direction: column;
            }
            .faq-sidebar-card,
            .faq-sidebar-cta {
                min-width: auto;
            }
            .faq-item-header {
                padding: 14px 16px;
            }
            .faq-item-answer {
                padding: 0 16px 14px 28px;
                font-size: 14px;
            }
            .faq-group-header {
                padding: 14px 16px;
            }
            .faq-group-header h3 {
                font-size: 16px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-links {
                grid-template-columns: 1fr 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .cta-section .container {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-section .cta-text h2 {
                font-size: 22px;
            }
            .btn {
                width: 100%;
                min-width: auto;
            }
            .cta-buttons {
                width: 100%;
            }
            .cta-buttons .btn {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-hero h1 {
                font-size: 24px;
            }
            .hero-badges .badge {
                font-size: 12px;
                padding: 5px 10px;
            }
            .faq-group-header h3 {
                font-size: 15px;
            }
            .safety-strip {
                flex-direction: column;
                padding: 16px;
                gap: 8px;
            }
            .footer-links {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                font-size: 11px;
            }
        }

/* roulang page: category5 */
:root {
            --color-primary: #0F2D3A;
            --color-primary-deep: #0E2832;
            --color-primary-card: #143C46;
            --color-gold: #D9A441;
            --color-gold-light: #E8C87A;
            --color-coral: #E85D3D;
            --color-green: #2AA87E;
            --color-bg: #F5F1E8;
            --color-white: #ffffff;
            --color-text: #1A2E38;
            --color-muted: #5A6E78;
            --color-border: rgba(15, 45, 58, 0.08);
            --color-border-gold: rgba(217, 164, 65, 0.25);
            --gradient-brand: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 35%, #D9A441 78%, #E85D3D 100%);
            --gradient-btn: linear-gradient(135deg, #0F2D3A 0%, #1C4A5C 45%, #D9A441 100%);
            --gradient-btn-hover: linear-gradient(135deg, #143C46 0%, #22607A 45%, #E8C87A 100%);
            --gradient-gold-soft: linear-gradient(135deg, rgba(217, 164, 65, 0.12) 0%, rgba(232, 93, 61, 0.08) 100%);
            --gradient-deep-banner: linear-gradient(135deg, #0E2832 0%, #143C46 45%, #1C4A5C 70%, rgba(217, 164, 65, 0.7) 100%);
            --shadow-card: 0 12px 30px rgba(15, 45, 58, 0.08);
            --shadow-card-hover: 0 20px 48px rgba(15, 45, 58, 0.14);
            --shadow-btn: 0 8px 20px rgba(15, 45, 58, 0.18);
            --shadow-btn-hover: 0 14px 32px rgba(15, 45, 58, 0.26);
            --shadow-nav: 0 4px 20px rgba(15, 45, 58, 0.16);
            --radius-card: 22px;
            --radius-btn: 12px;
            --radius-badge: 10px;
            --radius-img: 18px;
            --radius-faq: 16px;
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --font-title: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-spring: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
            --container-max: 1200px;
            --nav-height: 76px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--color-gold);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--color-gold);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 72px 0;
            position: relative;
        }
        .section--tight {
            padding: 48px 0;
        }
        .section--deep {
            background-color: var(--color-primary-deep);
            color: #E8E4DA;
        }
        .section--gradient-banner {
            background: var(--gradient-deep-banner);
            color: #F5F1E8;
            padding: 64px 0;
        }

        .section-heading {
            text-align: left;
            margin-bottom: 36px;
        }
        .section-heading .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--color-gold);
            text-transform: uppercase;
            margin-bottom: 10px;
            background: var(--gradient-gold-soft);
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            border: 1px solid var(--color-border-gold);
        }
        .section-heading h2 {
            font-family: var(--font-title);
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            letter-spacing: 0.01em;
            margin-bottom: 12px;
        }
        .section--deep .section-heading h2,
        .section--gradient-banner .section-heading h2 {
            color: #F5EFE2;
        }
        .section-heading p {
            font-size: 16px;
            color: var(--color-muted);
            max-width: 680px;
            line-height: 1.7;
        }
        .section--deep .section-heading p,
        .section--gradient-banner .section-heading p {
            color: rgba(245, 239, 226, 0.75);
        }

        /* Site Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(14, 40, 50, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            box-shadow: var(--shadow-nav);
            border-bottom: 1px solid rgba(217, 164, 65, 0.18);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-title);
            font-weight: 800;
            font-size: 22px;
            color: #F5EFE2;
            letter-spacing: 0.02em;
            white-space: nowrap;
            z-index: 1002;
            position: relative;
        }
        .nav-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--gradient-btn);
            color: #fff;
            border-radius: 10px;
            font-size: 20px;
            font-weight: 800;
            box-shadow: var(--shadow-btn);
        }
        .nav-logo:hover {
            color: var(--color-gold-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 8px;
        }
        .nav-links a {
            display: block;
            font-size: 15px;
            font-weight: 500;
            color: rgba(245, 239, 226, 0.85);
            padding: 8px 14px;
            border-radius: 8px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.08);
        }
        .nav-links a.active {
            color: var(--color-gold);
            background: rgba(217, 164, 65, 0.12);
            box-shadow: inset 0 -2px 0 var(--color-gold);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            z-index: 1002;
            padding: 6px;
            border-radius: 8px;
            transition: background var(--transition-base);
        }
        .nav-toggle:hover {
            background: rgba(217, 164, 65, 0.1);
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: #F5EFE2;
            border-radius: 2px;
            transition: all var(--transition-base);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border);
            padding: 18px 0;
        }
        .breadcrumb-bar .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-muted);
            flex-wrap: wrap;
        }
        .breadcrumb-bar a {
            color: var(--color-muted);
        }
        .breadcrumb-bar a:hover {
            color: var(--color-gold);
        }
        .breadcrumb-bar .separator {
            color: var(--color-border-gold);
        }
        .breadcrumb-bar .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* Hero */
        .hero-page {
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 72px 0 64px;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-page::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-deep-banner);
            opacity: 0.88;
        }
        .hero-page .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-page .hero-content {
            flex: 1 1 500px;
        }
        .hero-page .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-gold-light);
            background: rgba(217, 164, 65, 0.15);
            border: 1px solid var(--color-border-gold);
            padding: 6px 16px;
            border-radius: var(--radius-badge);
            margin-bottom: 18px;
        }
        .hero-page h1 {
            font-family: var(--font-title);
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            color: #F5EFE2;
            margin-bottom: 16px;
        }
        .hero-page .hero-sub {
            font-size: 17px;
            color: rgba(245, 239, 226, 0.82);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .hero-page .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-btn);
            text-align: center;
            min-width: 140px;
        }
        .btn-primary {
            background: var(--gradient-btn);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--gradient-btn-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-btn);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--color-gold);
            color: var(--color-gold-light);
            box-shadow: none;
            min-width: auto;
        }
        .btn-outline:hover {
            background: rgba(217, 164, 65, 0.12);
            color: var(--color-gold-light);
            border-color: var(--color-gold-light);
            transform: translateY(-2px);
        }
        .btn-coral {
            background: linear-gradient(135deg, #E85D3D 0%, #F08A52 100%);
            color: #fff;
        }
        .btn-coral:hover {
            background: linear-gradient(135deg, #D34B2D 0%, #E85D3D 100%);
            color: #fff;
        }

        .hero-page .hero-stats-mini {
            flex: 0 0 280px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(217, 164, 65, 0.25);
            border-radius: var(--radius-card);
            padding: 24px;
            backdrop-filter: blur(8px);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .hero-stats-mini .stat-item {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .hero-stats-mini .stat-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            color: var(--color-gold-light);
            flex-shrink: 0;
        }
        .hero-stats-mini .stat-info {
            flex: 1;
        }
        .hero-stats-mini .stat-num {
            font-size: 20px;
            font-weight: 800;
            color: #F5EFE2;
            line-height: 1.3;
        }
        .hero-stats-mini .stat-label {
            font-size: 13px;
            color: rgba(245, 239, 226, 0.65);
        }

        /* Filter Tags */
        .filter-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            color: var(--color-muted);
            transition: all var(--transition-base);
            box-shadow: 0 2px 8px rgba(15, 45, 58, 0.04);
        }
        .filter-tag:hover {
            border-color: var(--color-gold);
            color: var(--color-primary);
            transform: translateY(-1px);
        }
        .filter-tag.active {
            background: var(--gradient-gold-soft);
            border-color: var(--color-border-gold);
            color: var(--color-primary);
            font-weight: 600;
        }
        .filter-tag .tag-count {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 700;
            color: var(--color-gold);
            background: rgba(217, 164, 65, 0.12);
            border-radius: 999px;
            padding: 2px 8px;
        }

        /* Grid Layout - Irregular */
        .grid-irregular {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            grid-auto-flow: dense;
        }
        .grid-irregular .grid-item--wide {
            grid-column: span 2;
        }
        .grid-irregular .grid-item--tall {
            grid-row: span 2;
        }

        /* Collection Card */
        .collection-card {
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-spring);
            display: flex;
            flex-direction: column;
        }
        .collection-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-border-gold);
        }
        .collection-card .card-cover {
            position: relative;
            overflow: hidden;
            height: 200px;
            flex-shrink: 0;
        }
        .grid-item--tall .collection-card .card-cover {
            height: 280px;
        }
        .collection-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.45s ease;
        }
        .collection-card:hover .card-cover img {
            transform: scale(1.05);
        }
        .collection-card .rarity-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.04em;
            color: #fff;
            z-index: 2;
        }
        .rarity--legendary {
            background: linear-gradient(135deg, #E85D3D 0%, #F08A52 100%);
        }
        .rarity--epic {
            background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%);
        }
        .rarity--rare {
            background: linear-gradient(135deg, #2AA87E 0%, #4ECBA1 100%);
        }
        .rarity--common {
            background: linear-gradient(135deg, #5A6E78 0%, #7A8E98 100%);
        }
        .collection-card .card-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .collection-card .card-title {
            font-family: var(--font-title);
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .collection-card .card-type {
            font-size: 12px;
            font-weight: 600;
            color: var(--color-gold);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            padding: 3px 10px;
            border-radius: 6px;
        }
        .collection-card .card-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .collection-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 4px;
        }
        .collection-card .meta-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(15, 45, 58, 0.05);
            border: 1px solid var(--color-border);
            padding: 4px 12px;
            border-radius: 8px;
        }
        .collection-card .meta-badge i {
            color: var(--color-gold);
            font-size: 13px;
        }
        .collection-card .meta-badge .num {
            font-weight: 800;
            color: var(--color-gold);
        }

        /* Featured Card - dark */
        .collection-card--dark {
            background: var(--color-primary-card);
            border-color: rgba(217, 164, 65, 0.2);
            color: #E8E4DA;
        }
        .collection-card--dark .card-title {
            color: #F5EFE2;
        }
        .collection-card--dark .card-desc {
            color: rgba(232, 228, 218, 0.75);
        }
        .collection-card--dark .meta-badge {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(217, 164, 65, 0.25);
            color: #E8E4DA;
        }

        /* Data strip */
        .data-strip {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            background: var(--color-white);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            padding: 28px 32px;
            margin-bottom: 32px;
        }
        .data-strip .strip-item {
            flex: 1;
            min-width: 150px;
            text-align: center;
        }
        .data-strip .strip-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.3;
            font-variant-numeric: tabular-nums;
        }
        .data-strip .strip-num .highlight {
            color: var(--color-gold);
        }
        .data-strip .strip-label {
            font-size: 13px;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-faq);
            border: 1px solid var(--color-border);
            box-shadow: 0 4px 12px rgba(15, 45, 58, 0.05);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--color-border-gold);
        }
        .faq-item.open {
            border-left: 4px solid var(--color-gold);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-primary);
            background: transparent;
            text-align: left;
            width: 100%;
            transition: all var(--transition-base);
        }
        .faq-question:hover {
            color: var(--color-gold);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--color-gold);
            background: var(--gradient-gold-soft);
            border: 1px solid var(--color-border-gold);
            transition: transform var(--transition-spring);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--color-muted);
            line-height: 1.7;
            padding-bottom: 18px;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        /* CTA banner */
        .cta-banner {
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-card);
            overflow: hidden;
            position: relative;
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card-hover);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: var(--gradient-deep-banner);
            opacity: 0.92;
        }
        .cta-banner .cta-content {
            position: relative;
            z-index: 2;
            flex: 1;
            min-width: 260px;
        }
        .cta-banner .cta-content h3 {
            font-family: var(--font-title);
            font-size: 26px;
            font-weight: 800;
            color: #F5EFE2;
            margin-bottom: 8px;
        }
        .cta-banner .cta-content p {
            font-size: 15px;
            color: rgba(245, 239, 226, 0.78);
            line-height: 1.7;
        }
        .cta-banner .cta-action {
            position: relative;
            z-index: 2;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary-deep);
            color: #E8E4DA;
            padding: 56px 0 0;
            margin-top: auto;
            border-top: 1px solid rgba(217, 164, 65, 0.18);
        }
        .footer-top {
            display: flex;
            gap: 48px;
            flex-wrap: wrap;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(217, 164, 65, 0.1);
        }
        .footer-brand {
            flex: 1 1 280px;
        }
        .footer-brand .nav-logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(232, 228, 218, 0.65);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-links {
            flex: 2 1 500px;
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .footer-col {
            flex: 1;
            min-width: 140px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-gold-light);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(232, 228, 218, 0.7);
            margin-bottom: 8px;
            transition: all var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--color-gold);
            transform: translateX(4px);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(232, 228, 218, 0.55);
        }
        .footer-links-mini {
            display: flex;
            gap: 16px;
        }
        .footer-links-mini a {
            color: rgba(232, 228, 218, 0.55);
            font-size: 13px;
        }
        .footer-links-mini a:hover {
            color: var(--color-gold);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-links--left,
            .nav-links--right {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .site-header .container {
                justify-content: space-between;
            }
            .nav-logo {
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }
            .grid-irregular .grid-item--wide {
                grid-column: span 2;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                height: 60px;
            }
            .nav-logo {
                font-size: 18px;
                gap: 6px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
                border-radius: 8px;
            }
            .hero-page {
                padding: 48px 0 40px;
                min-height: auto;
            }
            .hero-page h1 {
                font-size: 30px;
            }
            .hero-page .hero-sub {
                font-size: 15px;
            }
            .hero-page .hero-stats-mini {
                flex-basis: 100%;
            }
            .section {
                padding: 48px 0;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .grid-irregular {
                grid-template-columns: 1fr;
            }
            .grid-irregular .grid-item--wide,
            .grid-irregular .grid-item--tall {
                grid-column: span 1;
                grid-row: span 1;
            }
            .grid-item--tall .collection-card .card-cover {
                height: 200px;
            }
            .data-strip {
                padding: 20px;
                gap: 12px;
            }
            .data-strip .strip-num {
                font-size: 22px;
            }
            .cta-banner {
                padding: 32px 24px;
                flex-direction: column;
                text-align: center;
            }
            .btn {
                min-width: auto;
                width: 100%;
            }
            .footer-top {
                flex-direction: column;
                gap: 28px;
            }
            .footer-links {
                flex-direction: column;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }
        @media (max-width: 480px) {
            .hero-page h1 {
                font-size: 26px;
            }
            .hero-page .hero-actions {
                flex-direction: column;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                font-size: 12px;
                padding: 6px 12px;
            }
            .collection-card .card-cover {
                height: 160px;
            }
            .collection-card .card-body {
                padding: 16px 18px 20px;
            }
        }