/* roulang page: index */
:root {
            --brand-600: #1B2A4A;
            --brand-700: #16233d;
            --brand-800: #111c32;
            --gold-500: #C8963E;
            --gold-400: #d4a853;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4f5a;
            --text-weak: #6B7280;
            --bg-page: #f8f9fb;
            --bg-white: #ffffff;
            --border-light: #e5e7eb;
            --border-medium: #d1d5db;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --transition-fast: 180ms ease;
            --transition-normal: 260ms ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.65;
            color: var(--text-primary);
            background-color: var(--bg-page);
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-light);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 62px;
            gap: 20px;
        }

        .nav-logo {
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: -0.01em;
            color: var(--brand-600);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo i {
            color: var(--gold-500);
            font-size: 1.3rem;
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-shrink: 0;
        }

        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links-desktop li a:hover {
            color: var(--brand-600);
            background: rgba(27, 42, 74, 0.05);
        }

        .nav-links-desktop li a.active {
            color: var(--brand-600);
            background: rgba(27, 42, 74, 0.08);
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            position: relative;
            display: flex;
            align-items: center;
        }

        .nav-search-wrap input {
            width: 200px;
            height: 38px;
            padding: 8px 14px 8px 36px;
            border: 1.5px solid var(--border-light);
            border-radius: 20px;
            font-size: 0.875rem;
            background: var(--bg-page);
            color: var(--text-primary);
            transition: all var(--transition-fast);
        }

        .nav-search-wrap input:focus {
            border-color: var(--brand-600);
            box-shadow: 0 0 0 3px rgba(27, 42, 74, 0.06);
            background: #fff;
            width: 240px;
        }

        .nav-search-wrap i {
            position: absolute;
            left: 13px;
            color: var(--text-weak);
            font-size: 0.85rem;
            pointer-events: none;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 20px;
            background: var(--gold-500);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 20px;
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .btn-nav-cta:hover {
            background: var(--gold-400);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .btn-nav-cta:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        /* Mobile menu toggle */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--brand-600);
            padding: 6px;
            cursor: pointer;
            transition: color var(--transition-fast);
        }

        .mobile-menu-btn:hover {
            color: var(--gold-500);
        }

        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 62px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #fff;
            z-index: 99;
            flex-direction: column;
            padding: 20px 24px 32px;
            gap: 4px;
            overflow-y: auto;
            border-top: 1px solid var(--border-light);
        }

        .mobile-menu-panel.open {
            display: flex;
        }

        .mobile-menu-panel a {
            display: block;
            padding: 14px 18px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .mobile-menu-panel a:hover,
        .mobile-menu-panel a.active {
            background: rgba(27, 42, 74, 0.06);
            color: var(--brand-600);
            font-weight: 600;
        }

        .mobile-menu-panel .mobile-search-wrap {
            position: relative;
            margin-bottom: 8px;
        }

        .mobile-menu-panel .mobile-search-wrap input {
            width: 100%;
            height: 44px;
            padding: 10px 16px 10px 40px;
            border: 1.5px solid var(--border-light);
            border-radius: 22px;
            font-size: 0.95rem;
            background: var(--bg-page);
        }

        .mobile-menu-panel .mobile-search-wrap i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Section spacing */
        .section {
            padding: 72px 0;
        }

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

        .section-lg {
            padding: 96px 0;
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 22, 40, 0.82) 0%, rgba(27, 42, 74, 0.70) 40%, rgba(13, 22, 40, 0.78) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            color: #fff;
            padding: 48px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(200, 150, 62, 0.2);
            border: 1px solid rgba(200, 150, 62, 0.4);
            color: #f0d78c;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 0 0 16px;
            color: #fff;
        }

        .hero-title span {
            color: #f0d78c;
        }

        .hero-desc {
            font-size: 1.15rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            max-width: 580px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: var(--gold-500);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-hero-primary:hover {
            background: var(--gold-400);
            box-shadow: 0 8px 28px rgba(200, 150, 62, 0.35);
            transform: translateY(-2px);
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 28px;
            border: 2px solid rgba(255, 255, 255, 0.45);
            transition: all var(--transition-normal);
            letter-spacing: 0.02em;
        }

        .btn-hero-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            overflow: hidden;
        }

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

        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #eef1f6;
        }

        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .card:hover .card-img-wrap img {
            transform: scale(1.06);
        }

        .card-body {
            padding: 20px 22px 24px;
        }

        .card-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--gold-500);
            background: rgba(200, 150, 62, 0.08);
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.03em;
            margin-bottom: 10px;
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .card-desc {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* Stat cards */
        .stat-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--brand-600);
            letter-spacing: -0.02em;
            line-height: 1.1;
        }

        .stat-number span {
            color: var(--gold-500);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 6px;
            font-weight: 500;
        }

        /* Advantage cards */
        .adv-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .adv-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .adv-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            flex-shrink: 0;
        }

        .adv-icon.blue {
            background: #e8eef8;
            color: #3d5f9e;
        }
        .adv-icon.gold {
            background: #fdf3e0;
            color: #c8963e;
        }
        .adv-icon.green {
            background: #e6f4ec;
            color: #2d8a56;
        }
        .adv-icon.purple {
            background: #f0e8f6;
            color: #6b3fa0;
        }

        .adv-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .adv-desc {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .faq-item:hover {
            border-color: #c5cad4;
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            letter-spacing: 0.01em;
        }

        .faq-question i {
            color: var(--text-weak);
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--gold-500);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            margin: 0;
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* News card */
        .news-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

        .news-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #eef1f6;
        }

        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .news-card:hover .news-card-img img {
            transform: scale(1.05);
        }

        .news-card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-bottom: 6px;
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .news-excerpt {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.6;
            margin: 0 0 14px;
            flex: 1;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--brand-600);
            transition: all var(--transition-fast);
            align-self: flex-start;
        }

        .btn-read-more:hover {
            color: var(--gold-500);
            gap: 8px;
        }

        /* Review card */
        .review-card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
        }

        .review-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .review-stars {
            color: #f0b13d;
            font-size: 0.95rem;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

        .review-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 14px;
            font-style: italic;
        }

        .review-author {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .review-role {
            font-size: 0.8rem;
            color: var(--text-weak);
        }

        /* Partner */
        .partner-item {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            letter-spacing: 0.02em;
        }

        .partner-item:hover {
            box-shadow: var(--shadow-md);
            color: var(--brand-600);
            border-color: #c5cad4;
        }

        /* CTA block */
        .cta-block {
            background: var(--brand-600);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.025);
            pointer-events: none;
        }

        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 0 0 12px;
            position: relative;
            z-index: 1;
            letter-spacing: -0.01em;
        }

        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 28px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 15px 36px;
            background: var(--gold-500);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 30px;
            transition: all var(--transition-normal);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }

        .btn-cta-lg:hover {
            background: var(--gold-400);
            box-shadow: 0 10px 32px rgba(200, 150, 62, 0.4);
            transform: translateY(-2px);
        }

        /* Footer */
        .site-footer {
            background: #0f1724;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: #f0d78c;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            letter-spacing: 0.02em;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0;
            }
            .nav-links-desktop li a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .nav-search-wrap input {
                width: 150px;
            }
            .nav-search-wrap input:focus {
                width: 180px;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-section {
                min-height: 500px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .section {
                padding: 52px 0;
            }
            .cta-block {
                padding: 40px 28px;
            }
            .cta-block h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop,
            .nav-search-wrap,
            .btn-nav-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-container {
                height: 56px;
                padding: 0 16px;
            }
            .hero-section {
                min-height: 440px;
                background-position: center 40%;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 0.95rem;
            }
            .hero-btns {
                flex-direction: column;
                gap: 10px;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                justify-content: center;
                text-align: center;
                width: 100%;
            }
            .section {
                padding: 40px 0;
            }
            .section-lg {
                padding: 56px 0;
            }
            .stat-number {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.35rem;
            }
            .cta-block p {
                font-size: 0.9rem;
            }
            .container {
                padding: 0 16px;
            }
            .container-narrow {
                padding: 0 16px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-section {
                min-height: 380px;
            }
            .hero-desc {
                font-size: 0.85rem;
            }
            .stat-card {
                padding: 20px 16px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .adv-card {
                padding: 22px 18px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer p {
                font-size: 0.85rem;
            }
            .news-card-body {
                padding: 14px 16px 18px;
            }
            .news-title {
                font-size: 0.95rem;
            }
        }

/* roulang page: category1 */
:root {
            --color-brand: #d4a853;
            --color-brand-dark: #bf953d;
            --color-navy-800: #142340;
            --color-navy-900: #0f1a30;
            --color-navy-950: #0a1222;
            --color-surface: #f5f3ef;
            --color-surface-light: #fafaf9;
            --color-text-primary: #1a1a1a;
            --color-text-secondary: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e5e0d6;
            --radius-md: 0.625rem;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 2px rgba(15, 26, 48, 0.05);
            --shadow-card: 0 1px 3px rgba(15, 26, 48, 0.06), 0 4px 16px rgba(15, 26, 48, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(15, 26, 48, 0.1), 0 8px 28px rgba(15, 26, 48, 0.07);
            --transition-fast: 180ms ease;
            --transition-smooth: 280ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: #1a1a1a;
            background-color: #fafaf9;
            min-height: 100vh;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 1px 0 rgba(15, 26, 48, 0.04), 0 2px 8px rgba(15, 26, 48, 0.03);
        }

        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 1.5rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: #142340;
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: color var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-logo i {
            color: #d4a853;
            font-size: 1.3rem;
        }
        .nav-logo:hover {
            color: #1a2d4f;
        }

        .nav-links-desktop {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            align-items: center;
            flex-wrap: nowrap;
        }

        .nav-links-desktop li a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.9rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: #4a4a4a;
            border-radius: 0.5rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links-desktop li a:hover {
            color: #142340;
            background: #f5f3ef;
        }
        .nav-links-desktop li a.active {
            color: #d4a853;
            background: #fdfbf7;
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: #f5f3ef;
            border-radius: 2rem;
            padding: 0.45rem 0.9rem;
            border: 1px solid transparent;
            transition: all var(--transition-fast);
            min-width: 180px;
        }
        .nav-search-wrap:focus-within {
            border-color: #d4a853;
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.1);
        }
        .nav-search-wrap i {
            color: #9a9a9a;
            font-size: 0.85rem;
        }
        .nav-search-wrap input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.875rem;
            color: #1a1a1a;
            width: 100%;
            min-width: 0;
        }
        .nav-search-wrap input::placeholder {
            color: #b0b0b0;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.2rem;
            background: #d4a853;
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            border-radius: 2rem;
            border: none;
            white-space: nowrap;
            letter-spacing: 0.01em;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 6px rgba(212, 168, 83, 0.3);
        }
        .btn-nav-cta:hover {
            background: #bf953d;
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: #142340;
            padding: 0.4rem;
            border-radius: 0.5rem;
            transition: background var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: #f5f3ef;
        }

        .mobile-menu-panel {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 1rem 1.5rem 1.5rem;
            gap: 0.5rem;
            box-shadow: 0 8px 24px rgba(15, 26, 48, 0.08);
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.7rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: #4a4a4a;
            border-radius: 0.5rem;
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover {
            background: #f5f3ef;
            color: #142340;
        }
        .mobile-menu-panel a.active {
            color: #d4a853;
            background: #fdfbf7;
            font-weight: 600;
        }
        .mobile-search-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: #f5f3ef;
            border-radius: 2rem;
            padding: 0.55rem 1rem;
            margin-bottom: 0.5rem;
            border: 1px solid transparent;
        }
        .mobile-search-wrap i {
            color: #9a9a9a;
            font-size: 0.85rem;
        }
        .mobile-search-wrap input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 0.875rem;
            color: #1a1a1a;
            width: 100%;
        }

        /* Page Banner */
        .page-banner {
            position: relative;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            background-repeat: no-repeat;
            padding: 5rem 2rem;
            min-height: 340px;
            display: flex;
            align-items: center;
            isolation: isolate;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 35, 64, 0.88) 0%, rgba(15, 26, 48, 0.78) 40%, rgba(10, 18, 34, 0.7) 100%);
            z-index: 0;
        }
        .page-banner-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            width: 100%;
            margin: 0 auto;
            text-align: center;
        }
        .page-banner-badge {
            display: inline-block;
            background: rgba(212, 168, 83, 0.2);
            color: #e8c96a;
            border: 1px solid rgba(212, 168, 83, 0.35);
            padding: 0.35rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 1.25rem;
        }
        .page-banner h1 {
            font-size: 2.75rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 1rem;
            letter-spacing: 0.03em;
            line-height: 1.3;
        }
        .page-banner p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.82);
            margin: 0;
            line-height: 1.75;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Sections */
        .section {
            padding: 4rem 2rem;
        }
        .section-sm {
            padding: 3rem 2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            color: #d4a853;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 0.6rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: #142340;
            margin: 0 0 1rem;
            letter-spacing: 0.02em;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: #6b6b6b;
            margin: 0 0 2.5rem;
            line-height: 1.7;
        }
        .text-center {
            text-align: center;
        }

        /* Cards */
        .card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            border: 1px solid #f0ede7;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: #e5e0d6;
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #f5f3ef;
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: #d4a853;
            background: #fdfbf7;
            padding: 0.25rem 0.7rem;
            border-radius: 1rem;
            margin-bottom: 0.7rem;
            letter-spacing: 0.03em;
            align-self: flex-start;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: #142340;
            margin: 0 0 0.5rem;
            line-height: 1.45;
        }
        .card-desc {
            font-size: 0.9rem;
            color: #6b6b6b;
            line-height: 1.65;
            margin: 0 0 1rem;
            flex: 1;
        }
        .card-meta {
            font-size: 0.8rem;
            color: #9a9a9a;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }

        /* Feature cards */
        .feature-card {
            background: #fff;
            border-radius: var(--radius-xl);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-card);
            border: 1px solid #f0ede7;
            transition: all var(--transition-smooth);
            text-align: center;
            height: 100%;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fdfbf7;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.5rem;
            color: #d4a853;
            transition: all var(--transition-fast);
        }
        .feature-card:hover .feature-icon {
            background: #d4a853;
            color: #fff;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #142340;
            margin: 0 0 0.6rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: #6b6b6b;
            line-height: 1.65;
            margin: 0;
        }

        /* Stat bar */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            border: 1px solid #f0ede7;
        }
        .stat-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: #d4a853;
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: #6b6b6b;
            margin-top: 0.5rem;
            letter-spacing: 0.03em;
        }

        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.75rem;
            margin-bottom: 0.75rem;
            border: 1px solid #f0ede7;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: #e5e0d6;
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: #142340;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            user-select: none;
        }
        .faq-question i {
            color: #d4a853;
            transition: transform var(--transition-fast);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, margin-top 0.3s ease;
            color: #5c5c5c;
            font-size: 0.95rem;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            margin-top: 1rem;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            background: #d4a853;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 2rem;
            border: none;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 6px rgba(212, 168, 83, 0.3);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: #bf953d;
            box-shadow: 0 4px 14px rgba(212, 168, 83, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1.6rem;
            background: transparent;
            color: #142340;
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: 2rem;
            border: 2px solid #d4a853;
            letter-spacing: 0.02em;
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline:hover {
            background: #fdfbf7;
            border-color: #bf953d;
            color: #bf953d;
        }
        .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            color: #d4a853;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        .btn-link:hover {
            color: #bf953d;
            gap: 0.55rem;
        }
        .btn-link i {
            font-size: 0.75rem;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(160deg, #142340 0%, #1a2d4f 40%, #0f1a30 100%);
            border-radius: var(--radius-2xl);
            padding: 3.5rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.08);
            z-index: 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.06);
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin: 0 0 0.75rem;
            letter-spacing: 0.03em;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
            margin: 0 0 2rem;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #0f1a30;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 2rem 1.5rem;
        }
        .site-footer .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            letter-spacing: 0.02em;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #d4a853;
            margin: 0 0 1rem;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.55rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #d4a853;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.5rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
            line-height: 1.6;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-search-wrap {
                min-width: 140px;
            }
            .nav-links-desktop li a {
                padding: 0.4rem 0.65rem;
                font-size: 0.85rem;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-right .nav-search-wrap {
                display: none;
            }
            .nav-right .btn-nav-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-container {
                padding: 0 1.25rem;
                height: 58px;
            }
            .page-banner {
                padding: 3.5rem 1.25rem;
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .section {
                padding: 2.5rem 1.25rem;
            }
            .section-sm {
                padding: 2rem 1.25rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-value {
                font-size: 1.7rem;
            }
            .cta-section {
                padding: 2.5rem 1.5rem;
                border-radius: var(--radius-xl);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }
            .card-body {
                padding: 1.25rem;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                padding: 0 1rem;
                height: 54px;
            }
            .nav-logo {
                font-size: 1.1rem;
                gap: 0.35rem;
            }
            .nav-logo i {
                font-size: 1.1rem;
            }
            .page-banner {
                padding: 2.5rem 1rem;
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 0.85rem;
            }
            .section {
                padding: 2rem 1rem;
            }
            .section-sm {
                padding: 1.5rem 1rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.6rem;
            }
            .stat-item {
                padding: 1rem 0.75rem;
            }
            .stat-value {
                font-size: 1.4rem;
            }
            .stat-label {
                font-size: 0.75rem;
            }
            .cta-section {
                padding: 2rem 1.25rem;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.9rem;
            }
            .faq-item {
                padding: 1.15rem 1.25rem;
            }
            .faq-question {
                font-size: 0.95rem;
            }
            .card-title {
                font-size: 1rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.6rem 1.4rem;
                font-size: 0.85rem;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a2a4a;
            --color-accent: #d4a853;
            --color-accent-light: #e8d5a0;
            --color-bg: #fafaf8;
            --color-surface: #ffffff;
            --color-text: #1a1a1a;
            --color-text-soft: #5c5c5c;
            --color-text-muted: #8a8a8a;
            --color-border: #e8e5df;
            --color-border-light: #f0ede7;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.09);
            --transition-fast: 0.18s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        /* Container */
        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03), 0 4px 16px rgba(0, 0, 0, 0.03);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 62px;
            gap: 1.5rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-primary);
            white-space: nowrap;
            letter-spacing: 0.02em;
            transition: opacity var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-logo i {
            color: var(--color-accent);
            font-size: 1.35rem;
            transition: transform var(--transition-base);
        }
        .nav-logo:hover i {
            transform: rotate(-15deg) scale(1.1);
        }
        .nav-logo:hover {
            opacity: 0.85;
            color: var(--color-primary);
        }

        .nav-links-desktop {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 0.25rem;
            align-items: center;
        }
        .nav-links-desktop li a {
            display: block;
            padding: 0.45rem 0.95rem;
            border-radius: var(--radius-md);
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .nav-links-desktop li a:hover {
            color: var(--color-primary);
            background-color: #f5f3ee;
        }
        .nav-links-desktop li a.active {
            color: var(--color-accent);
            background-color: #fdfaf2;
            font-weight: 600;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            display: flex;
            align-items: center;
            gap: 0.45rem;
            background: #f5f4f0;
            border: 1px solid transparent;
            border-radius: 2rem;
            padding: 0.4rem 0.9rem;
            transition: all var(--transition-fast);
            min-width: 180px;
        }
        .nav-search-wrap:focus-within {
            border-color: var(--color-accent);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.1);
        }
        .nav-search-wrap i {
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .nav-search-wrap input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.85rem;
            color: var(--color-text);
            width: 100%;
        }
        .nav-search-wrap input::placeholder {
            color: #b0ada5;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.2rem;
            border-radius: 2rem;
            background: var(--color-accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.875rem;
            white-space: nowrap;
            transition: all var(--transition-fast);
            box-shadow: 0 2px 8px rgba(212, 168, 83, 0.3);
            border: none;
            letter-spacing: 0.01em;
        }
        .btn-nav-cta:hover {
            background: #c49a3f;
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.45);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(212, 168, 83, 0.3);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            padding: 0.4rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }
        .mobile-menu-btn:hover {
            background: #f5f4f0;
            color: var(--color-primary);
        }

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 62px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: 1rem 1.5rem 1.5rem;
            flex-direction: column;
            gap: 0.5rem;
            z-index: 99;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-soft);
            transition: all var(--transition-fast);
        }
        .mobile-menu-panel a:hover {
            background: #f8f7f3;
            color: var(--color-primary);
        }
        .mobile-menu-panel a.active {
            color: var(--color-accent);
            background: #fdfaf2;
            font-weight: 600;
        }
        .mobile-search-wrap {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: #f5f4f0;
            border-radius: 2rem;
            padding: 0.55rem 1rem;
            margin-bottom: 0.5rem;
        }
        .mobile-search-wrap i {
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }
        .mobile-search-wrap input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--color-text);
            width: 100%;
        }

        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0;
            }
            .nav-links-desktop li a {
                padding: 0.4rem 0.65rem;
                font-size: 0.85rem;
            }
            .nav-search-wrap {
                min-width: 140px;
            }
        }
        @media (max-width: 860px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-search-wrap {
                display: none;
            }
            .btn-nav-cta {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-container {
                height: 56px;
                padding: 0 1rem;
            }
            .mobile-menu-panel {
                top: 56px;
            }
        }

        /* Section spacing */
        .section {
            padding: 4rem 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 2.5rem 0;
            }
        }

        /* Hero */
        .hero-category {
            position: relative;
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 35%;
            background-repeat: no-repeat;
            padding: 6rem 0 5rem;
            color: #fff;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(26, 42, 74, 0.82) 0%, rgba(15, 28, 50, 0.9) 100%);
            z-index: 1;
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            background: rgba(212, 168, 83, 0.85);
            border-radius: 2rem;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: #fff;
            margin-bottom: 1rem;
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: 0.03em;
            line-height: 1.2;
            margin: 0 0 1rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.9);
            max-width: 620px;
            line-height: 1.7;
            margin: 0 0 1.5rem;
        }
        @media (max-width: 768px) {
            .hero-category {
                padding: 4rem 0 3rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.6rem;
            }
        }

        /* Cards */
        .card {
            background: var(--color-surface);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-md);
            padding: 1.75rem;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: #e0dcd2;
        }
        .card-image-top {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 1.25rem;
            aspect-ratio: 16 / 10;
            background: #f0ede7;
        }
        .card-image-top img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .card:hover .card-image-top img {
            transform: scale(1.04);
        }
        .card-tag {
            display: inline-block;
            padding: 0.2rem 0.7rem;
            border-radius: 2rem;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 0.6rem;
        }
        .card-tag.accent {
            background: #fdf6e8;
            color: #b8913a;
        }
        .card-tag.blue {
            background: #eaf0f8;
            color: #2c4f78;
        }
        .card-tag.green {
            background: #eaf6ee;
            color: #2d7a4a;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.5rem;
            line-height: 1.35;
        }
        .card-text {
            font-size: 0.925rem;
            color: var(--color-text-soft);
            line-height: 1.65;
            margin: 0;
        }

        /* Stat block */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
        }
        .stat-card {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 0.4rem;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            font-weight: 500;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: #d8d3c8;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.1rem 1.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.975rem;
            color: var(--color-primary);
            gap: 1rem;
            user-select: none;
            transition: background var(--transition-fast);
        }
        .faq-question:hover {
            background: #fdfcf8;
        }
        .faq-question i {
            color: var(--color-accent);
            transition: transform var(--transition-base);
            flex-shrink: 0;
            font-size: 0.85rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 1.5rem;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.25rem;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(160deg, #1a2a4a 0%, #15213b 40%, #0f1c32 100%);
            color: #fff;
            border-radius: var(--radius-2xl);
            padding: 3.5rem 2.5rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.08);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 0 0 0.75rem;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 1.75rem;
            font-size: 1rem;
            position: relative;
            z-index: 1;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.2rem;
            border-radius: 2.5rem;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            transition: all var(--transition-base);
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.4);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }
        .btn-cta-lg:hover {
            background: #c99a38;
            box-shadow: 0 8px 28px rgba(212, 168, 83, 0.55);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-cta-lg:active {
            transform: translateY(0);
        }

        /* Section heading */
        .section-heading {
            text-align: center;
            margin-bottom: 2.5rem;
        }
        .section-heading h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.5rem;
            letter-spacing: 0.02em;
        }
        .section-heading p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            margin: 0;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .section-heading h2 {
                font-size: 1.45rem;
            }
        }

        /* Divider */
        .divider-accent {
            width: 48px;
            height: 3px;
            background: var(--color-accent);
            border-radius: 2px;
            margin: 0.6rem auto 0;
        }

        /* Footer */
        .site-footer {
            background: #1a1f2b;
            color: #c5c9d0;
            padding: 3.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .site-footer .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.6rem;
            display: flex;
            align-items: center;
            gap: 0.45rem;
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.65;
            color: #a0a5ae;
            margin: 0;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin: 0 0 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.45rem;
        }
        .footer-col ul li a {
            color: #a0a5ae;
            font-size: 0.875rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.25rem;
            font-size: 0.8rem;
            color: #7a7f88;
            text-align: center;
            line-height: 1.6;
        }

        /* Extra utility */
        .text-accent {
            color: var(--color-accent);
        }
        .bg-soft {
            background: #fafaf7;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        @media (max-width: 768px) {
            .grid-3 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .grid-3 {
                grid-template-columns: 1fr;
            }
        }

        /* Highlight box */
        .highlight-box {
            background: #fdfcf6;
            border-left: 4px solid var(--color-accent);
            padding: 1.25rem 1.5rem;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            margin: 1.5rem 0;
        }
        .highlight-box p {
            margin: 0;
            font-size: 0.95rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }

        /* Process steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
            counter-reset: step;
        }
        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }
        .process-step {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-base);
        }
        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .process-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.75rem;
        }
        .process-step h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-primary);
            margin: 0 0 0.35rem;
        }
        .process-step p {
            font-size: 0.825rem;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.55;
        }

/* roulang page: category3 */
:root {
            --color-brand-dark: #0f1d2d;
            --color-brand-navy: #152940;
            --color-brand-gold: #d4a853;
            --color-brand-goldlight: #e8c97a;
            --color-surface: #f6f7f9;
            --color-muted: #6b7280;
            --color-card: #ffffff;
            --color-border: #e5e7eb;
            --color-text: #1a1a1a;
            --color-text-weak: #5a5a5a;
            --radius-lg: 0.875rem;
            --radius-xl: 1.125rem;
            --radius-full: 9999px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
            --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.08), 0 8px 32px rgba(0, 0, 0, 0.06);
            --shadow-nav: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
            --transition-smooth: 0.22s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

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

        body {
            margin: 0;
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.65;
            color: var(--color-text);
            background-color: #ffffff;
            min-height: 100vh;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 60px;
            gap: 20px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-brand-dark);
            white-space: nowrap;
            flex-shrink: 0;
            transition: color var(--transition-smooth);
        }
        .nav-logo i {
            color: var(--color-brand-gold);
            font-size: 1.3rem;
        }
        .nav-logo:hover {
            color: var(--color-brand-navy);
        }
        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: nowrap;
        }
        .nav-links-desktop li a {
            display: block;
            padding: 7px 15px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            color: #3a3a3a;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .nav-links-desktop li a:hover {
            color: var(--color-brand-dark);
            background: #f1f3f5;
        }
        .nav-links-desktop li a.active {
            color: #ffffff;
            background: var(--color-brand-navy);
            font-weight: 600;
            box-shadow: 0 2px 8px rgba(21, 41, 64, 0.3);
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .nav-search-wrap {
            display: flex;
            align-items: center;
            background: #f3f4f6;
            border-radius: var(--radius-full);
            padding: 0 14px;
            height: 38px;
            gap: 8px;
            transition: all var(--transition-smooth);
            border: 1px solid transparent;
        }
        .nav-search-wrap:focus-within {
            background: #ffffff;
            border-color: var(--color-brand-gold);
            box-shadow: 0 0 0 3px rgba(212, 168, 83, 0.1);
        }
        .nav-search-wrap i {
            color: #999;
            font-size: 0.85rem;
        }
        .nav-search-wrap input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.85rem;
            color: var(--color-text);
            width: 150px;
        }
        .nav-search-wrap input::placeholder {
            color: #aaa;
        }
        .btn-nav-cta {
            display: flex;
            align-items: center;
            gap: 6px;
            background: var(--color-brand-gold);
            color: #ffffff;
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.88rem;
            white-space: nowrap;
            transition: all var(--transition-smooth);
            box-shadow: var(--shadow-btn);
            border: none;
        }
        .btn-nav-cta:hover {
            background: #c4963e;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(212, 168, 83, 0.4);
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-brand-dark);
            padding: 6px;
        }
        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 60px;
            left: 0;
            right: 0;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
            z-index: 99;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 12px 16px;
            border-radius: 10px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #3a3a3a;
            transition: all var(--transition-smooth);
        }
        .mobile-menu-panel a:hover {
            background: #f5f6f8;
            color: var(--color-brand-dark);
        }
        .mobile-menu-panel a.active {
            background: var(--color-brand-navy);
            color: #ffffff;
            font-weight: 600;
        }
        .mobile-search-wrap {
            display: flex;
            align-items: center;
            background: #f3f4f6;
            border-radius: 10px;
            padding: 0 14px;
            height: 40px;
            gap: 8px;
            margin-bottom: 6px;
            border: 1px solid var(--color-border);
        }
        .mobile-search-wrap i {
            color: #999;
            font-size: 0.85rem;
        }
        .mobile-search-wrap input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--color-text);
            width: 100%;
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            color: #ffffff;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 29, 45, 0.82) 0%, rgba(21, 41, 64, 0.9) 100%);
        }
        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            padding: 0 24px;
        }
        .page-hero-badge {
            display: inline-block;
            background: rgba(212, 168, 83, 0.2);
            border: 1px solid rgba(212, 168, 83, 0.45);
            color: var(--color-brand-goldlight);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.4px;
            margin-bottom: 16px;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 700;
            margin: 0 0 14px;
            letter-spacing: 1px;
            line-height: 1.25;
        }
        .page-hero p {
            font-size: 1.08rem;
            opacity: 0.9;
            line-height: 1.7;
            margin: 0;
        }

        /* ========== SECTION TITLES ========== */
        .section-title-area {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-label {
            display: inline-block;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-brand-gold);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title-area h2 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .section-title-area p {
            font-size: 0.95rem;
            color: var(--color-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ========== STAT CARDS ========== */
        .stat-cards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e8e9ec;
            transform: translateY(-3px);
        }
        .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(212, 168, 83, 0.1);
            color: var(--color-brand-gold);
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-muted);
            margin-top: 4px;
        }

        /* ========== TIPS CARDS GRID ========== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .tip-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }
        .tip-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e8e9ec;
            transform: translateY(-4px);
        }
        .tip-card-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            display: block;
        }
        .tip-card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .tip-card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-brand-gold);
            background: rgba(212, 168, 83, 0.08);
            padding: 4px 10px;
            border-radius: 6px;
            margin-bottom: 10px;
            align-self: flex-start;
            letter-spacing: 0.3px;
        }
        .tip-card-body h3 {
            font-size: 1.08rem;
            font-weight: 650;
            color: var(--color-brand-dark);
            margin: 0 0 8px;
            line-height: 1.35;
        }
        .tip-card-body p {
            font-size: 0.88rem;
            color: var(--color-muted);
            line-height: 1.55;
            margin: 0 0 14px;
            flex: 1;
        }
        .tip-card-link {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-brand-navy);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-smooth);
            align-self: flex-start;
        }
        .tip-card-link:hover {
            color: var(--color-brand-gold);
        }
        .tip-card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-smooth);
        }
        .tip-card-link:hover i {
            transform: translateX(4px);
        }

        /* ========== STEPS / PROCESS ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .step-card {
            background: #ffffff;
            border-radius: var(--radius-xl);
            padding: 28px 22px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid transparent;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: #e8e9ec;
            transform: translateY(-3px);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-brand-navy);
            color: #ffffff;
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 14px;
        }
        .step-card h3 {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--color-brand-dark);
            margin: 0 0 8px;
        }
        .step-card p {
            font-size: 0.87rem;
            color: var(--color-muted);
            line-height: 1.55;
            margin: 0;
        }

        /* ========== ADVANCED SECTION ========== */
        .advanced-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: #ffffff;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }
        .advanced-img {
            width: 100%;
            height: 100%;
            min-height: 340px;
            object-fit: cover;
            display: block;
        }
        .advanced-text {
            padding: 32px 36px 32px 12px;
        }
        .advanced-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-brand-dark);
            margin: 0 0 12px;
            line-height: 1.3;
        }
        .advanced-text p {
            font-size: 0.93rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            margin: 0 0 10px;
        }
        .advanced-list {
            margin: 14px 0 0;
            padding: 0;
            list-style: none;
        }
        .advanced-list li {
            padding: 8px 0 8px 24px;
            position: relative;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.5;
        }
        .advanced-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-brand-gold);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: #d0d3d8;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            background: none;
            border: none;
            padding: 18px 22px;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-brand-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color var(--transition-smooth);
            line-height: 1.4;
        }
        .faq-question:hover {
            color: var(--color-brand-gold);
        }
        .faq-question i {
            font-size: 0.8rem;
            color: #aaa;
            transition: all var(--transition-smooth);
            flex-shrink: 0;
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.9rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            color: var(--color-brand-gold);
        }
        .faq-item.open {
            border-color: #d0d3d8;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--color-brand-navy);
            border-radius: var(--radius-xl);
            padding: 48px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(212, 168, 83, 0.08);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin: 0 0 10px;
            position: relative;
            z-index: 1;
        }
        .cta-section p {
            font-size: 0.95rem;
            opacity: 0.85;
            margin: 0 0 24px;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-brand-gold);
            color: #ffffff;
            padding: 13px 28px;
            border-radius: var(--radius-full);
            font-weight: 650;
            font-size: 1rem;
            transition: all var(--transition-smooth);
            box-shadow: 0 4px 18px rgba(212, 168, 83, 0.35);
            position: relative;
            z-index: 1;
            border: none;
        }
        .btn-cta-large:hover {
            background: #c4963e;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(212, 168, 83, 0.5);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-brand-dark);
            color: #c5c9ce;
            padding: 48px 0 24px;
            font-size: 0.88rem;
            line-height: 1.7;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand-name {
            font-weight: 700;
            font-size: 1.15rem;
            color: #ffffff;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-desc {
            color: #a0a5ad;
            line-height: 1.65;
            margin: 0;
        }
        .footer-col h4 {
            color: #ffffff;
            font-weight: 600;
            font-size: 0.92rem;
            margin: 0 0 12px;
            letter-spacing: 0.3px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: #a0a5ad;
            transition: color var(--transition-smooth);
            font-size: 0.86rem;
        }
        .footer-col ul li a:hover {
            color: var(--color-brand-goldlight);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            color: #7a7f86;
            font-size: 0.8rem;
            line-height: 1.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .tips-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .advanced-block {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .advanced-img {
                min-height: 240px;
                max-height: 300px;
            }
            .advanced-text {
                padding: 24px 28px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .nav-search-wrap input {
                width: 100px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-right {
                display: none;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-container {
                height: 54px;
                padding: 0 16px;
            }
            .page-hero {
                min-height: 280px;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .page-hero p {
                font-size: 0.92rem;
            }
            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-cards-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .section-title-area h2 {
                font-size: 1.45rem;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .container {
                padding: 0 16px;
            }
            .advanced-block {
                border-radius: var(--radius-lg);
            }
            .advanced-img {
                min-height: 200px;
                max-height: 240px;
            }
            .advanced-text {
                padding: 20px;
            }
            .advanced-text h3 {
                font-size: 1.2rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .stat-cards-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.3rem;
            }
            .stat-icon {
                width: 36px;
                height: 36px;
                font-size: 1.1rem;
            }
            .page-hero {
                min-height: 240px;
            }
            .page-hero h1 {
                font-size: 1.4rem;
            }
            .page-hero p {
                font-size: 0.85rem;
            }
            .tip-card-img {
                height: 160px;
            }
            .btn-nav-cta {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }

/* roulang page: category4 */
:root {
            --color-navy: #1B2A4A;
            --color-navy-dark: #0F1C33;
            --color-navy-light: #243B5E;
            --color-gold: #C8A04A;
            --color-gold-light: #D9B860;
            --color-gold-dark: #A8812E;
            --color-soft-gray: #F5F6F8;
            --color-mid-gray: #9CA3AF;
            --color-warm-white: #FAFBFD;
            --color-text-primary: #1a1a1a;
            --color-text-secondary: #5A6270;
            --color-text-weak: #8A92A0;
            --color-border: #e5e7eb;
            --color-border-light: #f0f1f3;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --shadow-card: 0 2px 16px rgba(27, 42, 74, 0.06);
            --shadow-card-hover: 0 8px 32px rgba(27, 42, 74, 0.11);
            --shadow-nav: 0 1px 0 rgba(27, 42, 74, 0.06);
            --transition-base: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            line-height: 1.7;
            color: var(--color-text-primary);
            background-color: #ffffff;
            -webkit-tap-highlight-color: transparent;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            padding: 0;
        }

        input {
            font-family: inherit;
            outline: none;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ========== NAVIGATION ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-nav);
            transition: box-shadow var(--transition-base);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(27, 42, 74, 0.1);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
            height: 64px;
            gap: 1.5rem;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-navy);
            white-space: nowrap;
            transition: color var(--transition-base);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo i {
            color: var(--color-gold);
            font-size: 1.35rem;
            transition: transform var(--transition-base);
        }
        .nav-logo:hover i {
            transform: rotate(-12deg);
        }
        .nav-logo:hover {
            color: var(--color-navy-light);
        }

        .nav-links-desktop {
            display: flex;
            align-items: center;
            gap: 0.15rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links-desktop li a {
            display: block;
            padding: 0.5rem 0.85rem;
            font-size: 0.925rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
            position: relative;
        }
        .nav-links-desktop li a:hover {
            color: var(--color-navy);
            background: rgba(27, 42, 74, 0.04);
        }
        .nav-links-desktop li a.active {
            color: var(--color-navy);
            font-weight: 600;
            background: rgba(27, 42, 74, 0.05);
        }
        .nav-links-desktop li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-gold);
            border-radius: 6px;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            background: var(--color-soft-gray);
            border-radius: 2rem;
            padding: 0.45rem 0.9rem;
            gap: 0.5rem;
            transition: all var(--transition-base);
            border: 2px solid transparent;
            width: 180px;
        }
        .nav-search-wrap:focus-within {
            border-color: var(--color-gold);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(200, 160, 74, 0.08);
            width: 210px;
        }
        .nav-search-wrap i {
            color: var(--color-mid-gray);
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .nav-search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.85rem;
            color: var(--color-text-primary);
            width: 100%;
            outline: none;
        }
        .nav-search-wrap input::placeholder {
            color: var(--color-text-weak);
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.5rem 1.2rem;
            font-size: 0.875rem;
            font-weight: 600;
            color: #fff;
            background: var(--color-gold);
            border-radius: 2rem;
            transition: all var(--transition-base);
            white-space: nowrap;
            text-decoration: none;
            box-shadow: var(--shadow-btn);
        }
        .btn-nav-cta:hover {
            background: var(--color-gold-dark);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            color: var(--color-navy);
            padding: 0.4rem;
            cursor: pointer;
            background: none;
            border: none;
            transition: color var(--transition-base);
        }
        .mobile-menu-btn:hover {
            color: var(--color-gold);
        }

        .mobile-menu-panel {
            display: none;
            position: absolute;
            top: 64px;
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--color-border-light);
            padding: 1rem 1.5rem 1.5rem;
            flex-direction: column;
            gap: 0.35rem;
            box-shadow: 0 12px 32px rgba(27, 42, 74, 0.1);
            z-index: 999;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel .mobile-search-wrap {
            display: flex;
            align-items: center;
            background: var(--color-soft-gray);
            border-radius: 2rem;
            padding: 0.55rem 1rem;
            gap: 0.5rem;
            margin-bottom: 0.5rem;
            border: 2px solid transparent;
        }
        .mobile-menu-panel .mobile-search-wrap:focus-within {
            border-color: var(--color-gold);
            background: #fff;
        }
        .mobile-menu-panel .mobile-search-wrap i {
            color: var(--color-mid-gray);
            font-size: 0.85rem;
        }
        .mobile-menu-panel .mobile-search-wrap input {
            border: none;
            background: transparent;
            font-size: 0.9rem;
            width: 100%;
            outline: none;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 0.65rem 0.8rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-sm);
            text-decoration: none;
            transition: all var(--transition-base);
        }
        .mobile-menu-panel a:hover {
            background: rgba(27, 42, 74, 0.04);
            color: var(--color-navy);
        }
        .mobile-menu-panel a.active {
            color: var(--color-navy);
            font-weight: 600;
            background: rgba(27, 42, 74, 0.05);
            border-left: 3px solid var(--color-gold);
        }

        /* ========== CONTAINER ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 4rem 0;
        }
        .section-tight {
            padding: 2.5rem 0;
        }
        .section-wide {
            padding: 5rem 0;
        }

        /* ========== HERO ========== */
        .hero-category {
            position: relative;
            background: var(--color-navy);
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 28, 51, 0.88) 0%, rgba(27, 42, 74, 0.75) 50%, rgba(15, 28, 51, 0.82) 100%);
            z-index: 1;
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1rem;
        }
        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-base);
        }
        .hero-breadcrumb a:hover {
            color: var(--color-gold-light);
        }
        .hero-breadcrumb span {
            color: rgba(255, 255, 255, 0.55);
        }

        /* ========== CARDS ========== */
        .card {
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: transparent;
        }
        .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--color-soft-gray);
        }
        .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 1.5rem 1.6rem;
        }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.7rem;
            border-radius: 2rem;
            background: rgba(200, 160, 74, 0.1);
            color: var(--color-gold-dark);
            margin-bottom: 0.6rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-navy);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
        }

        /* ========== STAT CARD ========== */
        .stat-card {
            text-align: center;
            padding: 2rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--color-navy);
            line-height: 1;
            margin-bottom: 0.35rem;
        }
        .stat-number .stat-unit {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--color-gold);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* ========== REPORT LIST ========== */
        .report-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 1.5rem;
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            align-items: center;
        }
        .report-item:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }
        .report-thumb {
            width: 100px;
            height: 70px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--color-soft-gray);
        }
        .report-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .report-info {
            flex: 1;
            min-width: 0;
        }
        .report-date {
            font-size: 0.78rem;
            color: var(--color-text-weak);
            margin-bottom: 0.2rem;
        }
        .report-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-navy);
            margin-bottom: 0.25rem;
            line-height: 1.35;
        }
        .report-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .report-badge {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 2rem;
            background: rgba(27, 42, 74, 0.07);
            color: var(--color-navy-light);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-lg);
            margin-bottom: 0.75rem;
            overflow: hidden;
            background: #fff;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: #d0d4db;
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.15rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-navy);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 1rem;
            transition: background var(--transition-base);
        }
        .faq-question:hover {
            background: rgba(27, 42, 74, 0.02);
        }
        .faq-question i {
            flex-shrink: 0;
            transition: transform var(--transition-base);
            color: var(--color-gold);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 1.5rem 1.25rem;
        }
        .faq-answer p {
            margin: 0;
            font-size: 0.92rem;
            color: var(--color-text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--color-navy);
            background-image: url('assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-radius: var(--radius-2xl);
            overflow: hidden;
            padding: 3.5rem 2.5rem;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(15, 28, 51, 0.82);
            z-index: 1;
        }
        .cta-section>* {
            position: relative;
            z-index: 2;
        }

        /* ========== BUTTONS ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 2rem;
            transition: all var(--transition-base);
            text-decoration: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-gold);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--color-gold-dark);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.55);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-ghost {
            background: transparent;
            color: var(--color-navy);
            border: 1px solid var(--color-border);
        }
        .btn-ghost:hover {
            background: rgba(27, 42, 74, 0.04);
            border-color: var(--color-navy-light);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-navy-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 2rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.45rem;
        }
        .footer-desc {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
        }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-gold-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 1.5rem;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
            text-align: center;
            line-height: 1.6;
        }

        /* ========== METHODOLOGY STEPS ========== */
        .step-card {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.5rem;
            background: #fff;
            border-radius: var(--radius-xl);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: transparent;
        }
        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-navy);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .step-content h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-navy);
            margin: 0 0 0.3rem;
        }
        .step-content p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .nav-links-desktop {
                gap: 0;
            }
            .nav-links-desktop li a {
                padding: 0.45rem 0.6rem;
                font-size: 0.85rem;
            }
            .nav-search-wrap {
                width: 140px;
            }
            .nav-search-wrap:focus-within {
                width: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .hero-category {
                min-height: 340px;
            }
            .section {
                padding: 3rem 0;
            }
            .section-wide {
                padding: 3.5rem 0;
            }
        }

        @media (max-width: 768px) {
            .nav-links-desktop {
                display: none;
            }
            .nav-search-wrap {
                display: none;
            }
            .btn-nav-cta {
                padding: 0.45rem 0.9rem;
                font-size: 0.8rem;
            }
            .mobile-menu-btn {
                display: block;
            }
            .nav-container {
                padding: 0 1rem;
                height: 56px;
            }
            .mobile-menu-panel {
                top: 56px;
            }
            .hero-category {
                min-height: 300px;
                text-align: center;
            }
            .hero-category .hero-content {
                max-width: 100%;
            }
            .hero-breadcrumb {
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.25rem;
            }
            .report-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .report-thumb {
                width: 100%;
                height: 140px;
            }
            .report-badge {
                align-self: flex-start;
            }
            .cta-section {
                padding: 2.5rem 1.25rem;
                border-radius: var(--radius-xl);
            }
            .stat-number {
                font-size: 2rem;
            }
            .section {
                padding: 2.25rem 0;
            }
            .section-wide {
                padding: 2.5rem 0;
            }
            .step-card {
                flex-direction: column;
                gap: 0.75rem;
            }
            .faq-question {
                padding: 1rem 1.15rem;
                font-size: 0.93rem;
            }
            .faq-answer {
                padding: 0 1.15rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 1.15rem 1rem;
            }
        }

        @media (max-width: 520px) {
            .nav-logo {
                font-size: 1.05rem;
            }
            .nav-logo i {
                font-size: 1.1rem;
            }
            .btn-nav-cta {
                padding: 0.4rem 0.7rem;
                font-size: 0.75rem;
                gap: 0.25rem;
            }
            .btn-nav-cta i {
                font-size: 0.7rem;
            }
            .hero-category {
                min-height: 250px;
            }
            .hero-category h1 {
                font-size: 1.5rem !important;
            }
            .card-body {
                padding: 1rem 1.15rem;
            }
            .card-title {
                font-size: 1rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .container-narrow {
                padding: 0 0.9rem;
            }
            .section {
                padding: 1.75rem 0;
            }
            .stat-card {
                padding: 1.25rem 1rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .btn {
                padding: 0.6rem 1.2rem;
                font-size: 0.85rem;
            }
            .footer-bottom {
                font-size: 0.72rem;
            }
        }