/* roulang page: index */
/* ===== CSS Variables ===== */
        :root {
            --primary: #0C2D5C;
            --primary-light: #1A4B8C;
            --primary-dark: #081F3E;
            --accent: #D4A843;
            --accent-hover: #C49A32;
            --accent-dark: #B08A2A;
            --bg-light: #F8F9FA;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --bg-card: #FFFFFF;
            --text-primary: #1E1E1E;
            --text-secondary: #555555;
            --text-light: #333333;
            --text-on-dark: #FFFFFF;
            --text-muted: #CFD8DC;
            --border-color: #E5E7EB;
            --shadow-sm: 0 2px 12px rgba(0,0,0,0.08);
            --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
            --radius-card: 8px;
            --radius-btn: 6px;
            --radius-input: 4px;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Roboto", "Inter", sans-serif;
            --container-max: 1200px;
            --header-height: 64px;
            --tab-height: 56px;
            --spacing-section: 80px;
            --spacing-section-mobile: 40px;
            --transition: all 0.3s ease;
        }

        /* ===== Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover, a:focus { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; transition: var(--transition); }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 767px) {
            .container { padding: 0 15px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .mb-40 { margin-bottom: 40px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .mt-40 { margin-top: 40px; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            font-size: 1.75rem;
            color: var(--primary);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .section-title p {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-top: 12px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 767px) {
            .section-title { margin-bottom: 32px; }
            .section-title h2 { font-size: 1.4rem; }
        }

        /* ===== Button ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: var(--transition);
            white-space: nowrap;
            gap: 8px;
        }
        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }
        .btn-primary:hover, .btn-primary:focus {
            background: var(--primary-light);
            box-shadow: 0 4px 16px rgba(12,45,92,0.3);
            color: #FFFFFF;
        }
        .btn-accent {
            background: var(--accent);
            color: #FFFFFF;
        }
        .btn-accent:hover, .btn-accent:focus {
            background: var(--accent-hover);
            box-shadow: 0 4px 16px rgba(212,168,67,0.35);
            color: #FFFFFF;
        }
        .btn-outline {
            background: transparent;
            color: #FFFFFF;
            border: 2px solid #FFFFFF;
        }
        .btn-outline:hover, .btn-outline:focus {
            background: rgba(255,255,255,0.15);
            color: #FFFFFF;
        }
        .btn-sm { padding: 8px 18px; font-size: 0.875rem; }
        @media (max-width: 767px) {
            .btn { padding: 10px 20px; font-size: 0.9rem; }
        }

        /* ===== Header / Nav (Desktop) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 6px rgba(0,0,0,0.06);
            z-index: 1000;
            display: none;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
        }
        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
        }
        .site-logo span { color: var(--primary); }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 1px;
        }
        .main-nav a:hover, .main-nav a:focus { color: var(--primary); }
        .main-nav a:hover::after, .main-nav a:focus-visible::after { width: 100%; }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after { width: 100%; background: var(--accent); }
        .nav-actions { display: flex; align-items: center; gap: 12px; }
        .nav-actions .btn { padding: 8px 20px; font-size: 0.875rem; }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-tab-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: var(--tab-height);
            background: var(--bg-white);
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
            z-index: 1000;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }
        .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 0.7rem;
            color: var(--text-secondary);
            padding: 4px 8px;
            border-radius: 6px;
            transition: var(--transition);
            flex: 1;
            max-width: 80px;
        }
        .tab-item svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
            transition: var(--transition);
        }
        .tab-item span { font-size: 0.65rem; font-weight: 500; }
        .tab-item:hover, .tab-item:focus { color: var(--primary); }
        .tab-item.active {
            color: var(--primary);
            background: rgba(12,45,92,0.06);
        }
        .tab-item.active svg { fill: var(--primary); }
        .tab-item:active { transform: scale(0.95); }

        /* ===== Mobile Hamburger ===== */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.4);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }
        .mobile-menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu-panel {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100%;
            background: var(--bg-white);
            box-shadow: -4px 0 20px rgba(0,0,0,0.1);
            z-index: 1001;
            padding: 24px 28px;
            transition: right 0.3s ease;
            overflow-y: auto;
        }
        .mobile-menu-panel.open { right: 0; }
        .mobile-menu-panel .close-btn {
            display: block;
            margin-left: auto;
            font-size: 1.5rem;
            color: var(--text-secondary);
            padding: 4px 8px;
        }
        .mobile-menu-panel .close-btn:hover { color: var(--primary); }
        .mobile-menu-list { margin-top: 32px; display: flex; flex-direction: column; gap: 4px; }
        .mobile-menu-list a {
            display: block;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-primary);
            border-radius: 6px;
            transition: var(--transition);
        }
        .mobile-menu-list a:hover, .mobile-menu-list a:focus { background: var(--bg-light); }
        .mobile-menu-list a.active { background: rgba(12,45,92,0.08); color: var(--primary); font-weight: 600; }
        .mobile-menu-actions { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }

        /* ===== Responsive Nav ===== */
        @media (min-width: 1024px) {
            .site-header { display: block; }
            .mobile-tab-bar { display: none !important; }
            .hamburger { display: none !important; }
            .mobile-menu-overlay { display: none !important; }
        }
        @media (max-width: 1023px) {
            .site-header { display: flex; align-items: center; padding: 0 15px; height: var(--header-height); background: var(--bg-white); border-bottom: 1px solid var(--border-color); box-shadow: 0 1px 6px rgba(0,0,0,0.06); position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; }
            .site-header .container { width: 100%; padding: 0; }
            .site-header .main-nav { display: none; }
            .site-header .nav-actions { display: none; }
            .hamburger { display: flex !important; }
            .mobile-tab-bar { display: flex !important; }
            body { padding-top: var(--header-height); padding-bottom: var(--tab-height); }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0C2D5C 0%, #081F3E 60%, #1A1A2E 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(12,45,92,0.85) 0%, rgba(8,31,62,0.75) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #FFFFFF;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-text .subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: rgba(255,255,255,0.08);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-card);
            padding: 24px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255,255,255,0.14);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        @media (max-width: 1023px) {
            .hero { min-height: auto; padding: 60px 0 40px; }
            .hero-content { grid-template-columns: 1fr; gap: 36px; }
            .hero-text h1 { font-size: 2rem; }
            .hero-text .subtitle { font-size: 1rem; }
            .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
            .stat-number { font-size: 1.8rem; }
            .stat-card { padding: 16px 12px; }
        }
        @media (max-width: 520px) {
            .hero-text h1 { font-size: 1.6rem; }
            .hero-buttons { flex-direction: column; gap: 12px; }
            .hero-buttons .btn { width: 100%; }
            .hero-stats { grid-template-columns: 1fr; gap: 12px; }
            .stat-card { padding: 14px 12px; }
        }

        /* ===== Services Matrix ===== */
        .services-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-white);
        }
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 48px;
            background: var(--primary);
            border-radius: 0 0 4px 0;
            transition: var(--transition);
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }
        .service-card:hover::before {
            height: 100%;
            background: var(--accent);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            margin-bottom: 16px;
            color: var(--primary);
            transition: var(--transition);
        }
        .service-card:hover .service-icon { color: var(--accent); }
        .service-icon svg { width: 100%; height: 100%; fill: currentColor; }
        .service-card h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .service-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .service-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition);
        }
        .service-link:hover { color: var(--accent); gap: 8px; }
        @media (max-width: 1023px) {
            .services-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
        }
        @media (max-width: 520px) {
            .services-grid { grid-template-columns: 1fr; gap: 16px; }
            .service-card { padding: 20px 18px; }
        }

        /* ===== Comparison ===== */
        .comparison-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-light);
        }
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .comparison-col h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
        }
        .comparison-col.left h3 { color: #E74C3C; border-color: #E74C3C; }
        .comparison-col.right h3 { color: var(--primary); border-color: var(--accent); }
        .comparison-list { display: flex; flex-direction: column; gap: 14px; }
        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-card);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .comparison-item:hover { box-shadow: var(--shadow-sm); }
        .comparison-item .icon {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
            margin-top: 2px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            font-weight: 700;
            color: #FFFFFF;
        }
        .comparison-item.left .icon { background: #E74C3C; }
        .comparison-item.right .icon { background: #27AE60; }
        .comparison-item .text { font-size: 0.95rem; color: var(--text-primary); line-height: 1.5; }
        .comparison-divider {
            display: none;
        }
        @media (max-width: 767px) {
            .comparison-grid { grid-template-columns: 1fr; gap: 32px; }
            .comparison-col h3 { font-size: 1.1rem; }
        }

        /* ===== Latest News ===== */
        .news-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-white);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .news-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #E5E7EB;
        }
        .news-card .card-body {
            padding: 20px 20px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-tag {
            display: inline-block;
            padding: 3px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
            background: rgba(12,45,92,0.1);
            color: var(--primary);
        }
        .news-card .card-tag.tag-accent { background: rgba(212,168,67,0.15); color: var(--accent-dark); }
        .news-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-secondary);
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .news-card .card-meta .date { color: var(--text-secondary); }
        .news-card .card-meta .read-more {
            color: var(--primary);
            font-weight: 600;
            transition: var(--transition);
        }
        .news-card .card-meta .read-more:hover { color: var(--accent); }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-card);
            color: var(--text-secondary);
            font-size: 1rem;
            min-height: 200px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        @media (max-width: 1023px) {
            .news-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
        }
        @media (max-width: 520px) {
            .news-grid { grid-template-columns: 1fr; gap: 16px; }
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: var(--spacing-section) 0;
            background: var(--bg-light);
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question:hover, .faq-question:focus { color: var(--primary); }
        .faq-question .icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 300;
            color: var(--text-secondary);
            transition: var(--transition);
        }
        .faq-item.open .faq-question .icon { transform: rotate(45deg); color: var(--accent); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 767px) {
            .faq-question { padding: 14px 18px; font-size: 0.95rem; }
            .faq-answer { padding: 0 18px; }
            .faq-item.open .faq-answer { padding: 0 18px 16px; }
        }

        /* ===== CTA Form ===== */
        .cta-section {
            padding: var(--spacing-section) 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #FFFFFF;
        }
        .cta-section .section-title h2 { color: #FFFFFF; }
        .cta-section .section-title h2::after { background: var(--accent); }
        .cta-section .section-title p { color: var(--text-muted); }
        .cta-form-wrapper {
            max-width: 600px;
            margin: 0 auto;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: 12px;
            padding: 40px 36px;
            backdrop-filter: blur(8px);
        }
        .form-row { margin-bottom: 18px; }
        .form-row label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .form-row input,
        .form-row textarea {
            width: 100%;
            padding: 12px 16px;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--radius-input);
            color: #FFFFFF;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .form-row input::placeholder,
        .form-row textarea::placeholder { color: rgba(255,255,255,0.4); }
        .form-row input:focus,
        .form-row textarea:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255,255,255,0.15);
        }
        .form-row textarea { min-height: 100px; resize: vertical; }
        .form-row .btn { width: 100%; padding: 14px; font-size: 1rem; margin-top: 4px; }
        @media (max-width: 520px) {
            .cta-form-wrapper { padding: 24px 20px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: #FFFFFF;
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            margin-bottom: 24px;
        }
        .footer-col .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 12px;
        }
        .footer-col .logo .logo-icon {
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 800;
        }
        .footer-col .desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 16px;
        }
        .footer-col ul { display: flex; flex-direction: column; gap: 8px; }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul a:hover { color: var(--accent); }
        .footer-col .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .footer-col .contact-item svg { width: 18px; height: 18px; fill: var(--accent); flex-shrink: 0; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }
        @media (max-width: 1023px) {
            .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .animate-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .stat-card, .service-card, .news-card, .comparison-item, .faq-item {
            transition: var(--transition);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-light); }
        ::-webkit-scrollbar-thumb { background: #C0C4CC; border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: #909399; }

        /* ===== Accessibility ===== */
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0C2D5C;
            --primary-light: #1A4B8C;
            --primary-dark: #081E3E;
            --gold: #D4A843;
            --gold-light: #E0C065;
            --gold-dark: #B8922E;
            --bg-light: #F8F9FA;
            --bg-dark: #1A1A2E;
            --text-primary: #1E1E1E;
            --text-secondary: #555555;
            --text-light: #FFFFFF;
            --text-muted: #9CA3AF;
            --border: #E5E7EB;
            --shadow: 0 2px 12px rgba(0,0,0,0.08);
            --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
            --radius: 8px;
            --radius-sm: 6px;
            --radius-xs: 4px;
            --transition: all 0.3s ease;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-width: 1200px;
            --nav-height: 64px;
            --footer-bg: #0C2D5C;
            --success: #27AE60;
            --danger: #E74C3C;
            --warning: #F39C12;
        }

        /* ========== Reset & Base ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-family);
            color: var(--text-primary);
            background: var(--bg-light);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); text-decoration: underline; }
        a:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--text-primary); }
        h1 { font-size: 2.5rem; }
        h2 { font-size: 1.75rem; }
        h3 { font-size: 1.25rem; }
        h4 { font-size: 1.125rem; }
        p { margin-bottom: 1rem; }
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (max-width: 768px) {
            .container { padding-left: 15px; padding-right: 15px; }
            h1 { font-size: 1.75rem; }
            h2 { font-size: 1.375rem; }
            h3 { font-size: 1.125rem; }
        }
        .section { padding: 80px 0; }
        @media (max-width: 768px) { .section { padding: 40px 0; } }
        .text-center { text-align: center; }
        .text-secondary { color: var(--text-secondary); }
        .text-muted { color: var(--text-muted); }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            font-family: var(--font-family);
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            line-height: 1.4;
            white-space: nowrap;
        }
        .btn:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
        .btn-primary {
            background: var(--primary);
            color: var(--text-light);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: var(--text-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-primary:active { background: var(--primary-dark); transform: translateY(0); }
        .btn-gold {
            background: var(--gold);
            color: var(--text-light);
        }
        .btn-gold:hover {
            background: var(--gold-dark);
            color: var(--text-light);
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-gold:active { background: var(--gold-dark); transform: translateY(0); }
        .btn-outline {
            background: transparent;
            color: var(--text-light);
            border: 2px solid var(--text-light);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            color: var(--text-light);
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-sm { padding: 8px 18px; font-size: 0.875rem; }
        .btn-lg { padding: 16px 36px; font-size: 1.125rem; }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--nav-height);
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 6px rgba(0,0,0,0.05);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-header .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            white-space: nowrap;
        }
        .site-header .logo:hover { text-decoration: none; }
        .site-header .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--gold);
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 1.125rem;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .main-nav a {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: var(--transition);
        }
        .main-nav a:hover { color: var(--primary); text-decoration: none; }
        .main-nav a:hover::after { width: 100%; }
        .main-nav a.active { color: var(--primary); font-weight: 600; }
        .main-nav a.active::after { width: 100%; background: var(--gold); }
        .nav-cta { margin-left: 16px; }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .mobile-toggle:hover span { background: var(--gold); }
        @media (max-width: 1023px) {
            .main-nav { display: none; }
            .mobile-toggle { display: flex; }
            .site-header .container { padding-left: 15px; padding-right: 15px; }
        }

        /* ========== 移动端抽屉菜单 ========== */
        .mobile-drawer {
            position: fixed;
            top: var(--nav-height);
            left: 0;
            width: 100%;
            height: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            overflow: hidden;
            transition: height 0.35s ease;
            z-index: 999;
            box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        }
        .mobile-drawer.open { height: auto; min-height: 200px; }
        .mobile-drawer .drawer-inner {
            padding: 24px 20px 32px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .mobile-drawer a {
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--text-primary);
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .mobile-drawer a:last-child { border-bottom: none; }
        .mobile-drawer a:hover { color: var(--gold); text-decoration: none; }
        .mobile-drawer a.active { color: var(--gold); font-weight: 600; }
        .mobile-drawer .drawer-cta { margin-top: 12px; }

        /* ========== 底部移动端 Tab ========== */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 56px;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
            z-index: 1001;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }
        .bottom-tab a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            font-size: 0.6875rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 4px 12px;
            border-radius: var(--radius-xs);
            transition: var(--transition);
            position: relative;
        }
        .bottom-tab a:hover { color: var(--primary); text-decoration: none; }
        .bottom-tab a.active { color: var(--gold); }
        .bottom-tab a.active svg { fill: var(--gold); }
        .bottom-tab a svg {
            width: 22px;
            height: 22px;
            fill: var(--text-secondary);
            transition: var(--transition);
        }
        .bottom-tab a:hover svg { fill: var(--primary); }
        .bottom-tab a span { line-height: 1; }
        @media (max-width: 1023px) {
            .bottom-tab { display: flex; }
            body { padding-bottom: 56px; }
        }

        /* ========== Hero / 文章头部 ========== */
        .article-hero {
            position: relative;
            padding: 140px 0 60px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12,45,92,0.88) 0%, rgba(26,26,46,0.75) 100%);
            z-index: 1;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
        }
        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .article-hero .breadcrumb a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: var(--transition);
        }
        .article-hero .breadcrumb a:hover { color: var(--gold); }
        .article-hero .breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .article-hero .breadcrumb .current { color: var(--gold-light); }
        .article-hero h1 {
            font-size: 2.25rem;
            color: var(--text-light);
            max-width: 900px;
            line-height: 1.3;
            margin-bottom: 16px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.2);
        }
        @media (max-width: 768px) {
            .article-hero { padding: 100px 0 40px; min-height: 240px; }
            .article-hero h1 { font-size: 1.5rem; }
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            color: rgba(255,255,255,0.8);
            font-size: 0.875rem;
        }
        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item svg {
            width: 16px;
            height: 16px;
            fill: var(--gold);
        }
        .article-meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--gold);
            color: var(--text-light);
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* ========== 正文阅读区 ========== */
        .article-body {
            padding: 60px 0 80px;
            background: #fff;
        }
        .article-body .container {
            max-width: 820px;
        }
        .article-content {
            font-size: 1.0625rem;
            line-height: 1.8;
            color: var(--text-primary);
        }
        .article-content h2 {
            font-size: 1.5rem;
            margin-top: 40px;
            margin-bottom: 16px;
            color: var(--primary);
            border-left: 4px solid var(--gold);
            padding-left: 16px;
        }
        .article-content h3 {
            font-size: 1.25rem;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .article-content h4 {
            font-size: 1.0625rem;
            margin-top: 24px;
            margin-bottom: 8px;
            color: var(--text-secondary);
        }
        .article-content p {
            margin-bottom: 1.25rem;
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 28px auto;
            box-shadow: var(--shadow);
        }
        .article-content blockquote {
            border-left: 4px solid var(--gold);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--bg-light);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-content blockquote p:last-child { margin-bottom: 0; }
        .article-content ul, .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }
        .article-content ul { list-style: disc; }
        .article-content ol { list-style: decimal; }
        .article-content li { margin-bottom: 8px; }
        .article-content a { color: var(--primary); text-decoration: underline; }
        .article-content a:hover { color: var(--gold); }
        .article-content code {
            background: var(--bg-light);
            padding: 2px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.875rem;
            color: var(--primary);
        }
        .article-content pre {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 20px;
            border-radius: var(--radius);
            overflow-x: auto;
            margin: 24px 0;
        }
        .article-content pre code { background: none; color: inherit; padding: 0; }

        /* ========== 空态 ========== */
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .article-not-found .icon {
            font-size: 3rem;
            margin-bottom: 16px;
            color: var(--text-muted);
        }
        .article-not-found h2 {
            font-size: 1.5rem;
            margin-bottom: 12px;
            color: var(--text-secondary);
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            background: var(--bg-light);
            padding: 60px 0;
            border-top: 1px solid var(--border);
        }
        .related-section .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .related-section .section-title h2 {
            font-size: 1.5rem;
            color: var(--primary);
        }
        .related-section .section-title p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            margin-top: 8px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 1023px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .related-grid { grid-template-columns: 1fr; }
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--border);
        }
        .related-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h3 {
            font-size: 1.0625rem;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h3 a {
            color: var(--text-primary);
            text-decoration: none;
        }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body .card-meta {
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .card-meta svg {
            width: 14px;
            height: 14px;
            fill: var(--text-muted);
        }
        .related-card .card-body .read-more {
            margin-top: 12px;
            font-size: 0.875rem;
            color: var(--gold);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            text-decoration: none;
        }
        .related-card .card-body .read-more:hover { color: var(--gold-dark); text-decoration: underline; }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        @media (max-width: 1023px) {
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 640px) {
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            color: var(--gold);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .site-footer .footer-col .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .site-footer .footer-col .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--gold);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 800;
            font-size: 1.125rem;
        }
        .site-footer .footer-col .desc {
            font-size: 0.875rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
        }
        .site-footer .footer-col ul li { margin-bottom: 10px; }
        .site-footer .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.875rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover { color: var(--gold); padding-left: 4px; }
        .site-footer .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 0.875rem;
            color: rgba(255,255,255,0.65);
        }
        .site-footer .contact-item svg {
            width: 18px;
            height: 18px;
            fill: var(--gold);
            flex-shrink: 0;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.8125rem;
            color: rgba(255,255,255,0.5);
            flex-wrap: wrap;
            gap: 8px;
        }
        .site-footer .footer-bottom a {
            color: var(--gold-light);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover { color: var(--gold); text-decoration: underline; }
        @media (max-width: 640px) {
            .site-footer .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ========== 滚动渐入动效 ========== */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ========== 响应式辅助 ========== */
        @media (max-width: 480px) {
            .article-hero h1 { font-size: 1.25rem; }
            .article-content { font-size: 1rem; }
            .article-content h2 { font-size: 1.25rem; }
            .article-content h3 { font-size: 1.125rem; }
            .article-body { padding: 32px 0 48px; }
            .related-section { padding: 40px 0; }
            .related-section .section-title h2 { font-size: 1.25rem; }
        }

        /* ========== 打印样式 ========== */
        @media print {
            .site-header, .bottom-tab, .site-footer, .related-section { display: none !important; }
            .article-hero { padding: 40px 0 20px; background: #fff !important; min-height: auto; }
            .article-hero::before { display: none; }
            .article-hero h1 { color: var(--text-primary); text-shadow: none; }
            .article-hero .breadcrumb { color: var(--text-secondary); }
            .article-hero .breadcrumb a { color: var(--text-secondary); }
            .article-body { padding: 20px 0; }
            body { padding-bottom: 0; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0C2D5C;
            --primary-light: #1A4B8C;
            --primary-dark: #081E3E;
            --accent: #D4A843;
            --accent-light: #E0B95A;
            --accent-dark: #B8922E;
            --bg-light: #F8F9FA;
            --bg-dark: #1A1A2E;
            --text-primary: #1E1E1E;
            --text-secondary: #555555;
            --text-light: #FFFFFF;
            --text-muted: #8899AA;
            --border: #E5E7EB;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --transition: all 0.3s ease;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --header-height: 64px;
            --tab-height: 56px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); text-decoration: underline; }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        input, textarea, select { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255,255,255,0.98);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
            backdrop-filter: blur(8px);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 8px;
            font-size: 1.2rem;
            font-weight: 800;
        }
        .logo a { color: inherit; text-decoration: none; }
        .logo a:hover { text-decoration: none; }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            position: relative;
            transition: var(--transition);
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(12,45,92,0.05);
            text-decoration: none;
        }
        .main-nav a.active {
            color: var(--accent);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 8px 22px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-cta:hover {
            background: var(--accent-dark);
            color: #fff;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(212,168,67,0.35);
        }
        .nav-cta:active { transform: scale(0.96); }

        /* Mobile hamburger */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

        /* Mobile bottom tab */
        .bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--tab-height);
            background: rgba(255,255,255,0.98);
            border-top: 1px solid var(--border);
            box-shadow: 0 -2px 8px rgba(0,0,0,0.04);
            backdrop-filter: blur(8px);
        }
        .bottom-tab .tab-inner {
            display: flex;
            align-items: center;
            justify-content: space-around;
            height: 100%;
            max-width: 600px;
            margin: 0 auto;
        }
        .bottom-tab .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 4px 12px;
            font-size: 0.7rem;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .bottom-tab .tab-item svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
        }
        .bottom-tab .tab-item:hover {
            color: var(--primary);
            text-decoration: none;
        }
        .bottom-tab .tab-item.active {
            color: var(--accent);
            font-weight: 600;
        }
        .bottom-tab .tab-item.active svg {
            fill: var(--accent);
        }

        /* Mobile drawer */
        .mobile-drawer {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 999;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(12px);
            padding: 32px 24px;
            transform: translateX(100%);
            transition: transform 0.35s ease;
        }
        .mobile-drawer.open { transform: translateX(0); }
        .mobile-drawer a {
            display: block;
            padding: 14px 0;
            font-size: 1.15rem;
            font-weight: 500;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border);
            text-decoration: none;
        }
        .mobile-drawer a:hover { color: var(--primary); }
        .mobile-drawer a.active { color: var(--accent); font-weight: 700; }
        .mobile-drawer .drawer-cta {
            display: inline-block;
            margin-top: 24px;
            padding: 12px 32px;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-weight: 600;
            text-align: center;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 120px 0 80px;
            margin-top: var(--header-height);
            background: linear-gradient(135deg, rgba(12,45,92,0.92) 0%, rgba(26,26,46,0.88) 100%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--text-light);
            text-align: center;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212,168,67,0.08) 0%, transparent 60%);
        }
        .page-hero .container { position: relative; z-index: 1; }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-hero h1 .highlight {
            color: var(--accent);
        }
        .page-hero .subtitle {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            display: block;
            line-height: 1.2;
        }
        .hero-stats .stat-item .label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-bg-light { background: var(--bg-light); }
        .section-bg-white { background: #fff; }
        .section-bg-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-bg-dark h2, .section-bg-dark h3, .section-bg-dark .section-desc {
            color: #fff;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            font-size: 1.95rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .section-bg-dark .section-header h2 { color: var(--accent); }
        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-bg-dark .section-header .section-desc { color: rgba(255,255,255,0.75); }

        /* ===== About Intro ===== */
        .about-intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .about-intro-grid .text-col h3 {
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .about-intro-grid .text-col p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .about-intro-grid .image-col img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ===== Mission / Vision / Values ===== */
        .mvv-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .mvv-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .mvv-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .mvv-card .icon-wrap {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: rgba(12,45,92,0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mvv-card .icon-wrap svg {
            width: 28px;
            height: 28px;
            fill: var(--primary);
        }
        .mvv-card h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .mvv-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 28px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--accent), var(--primary));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-left: 64px;
            padding-bottom: 40px;
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-item .marker {
            position: absolute;
            left: 18px;
            top: 4px;
            width: 20px;
            height: 20px;
            background: var(--accent);
            border-radius: 50%;
            border: 4px solid #fff;
            box-shadow: 0 0 0 2px var(--accent);
        }
        .timeline-item .year {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 4px;
        }
        .timeline-item h4 {
            font-size: 1.05rem;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Tech Grid ===== */
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .tech-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            text-align: center;
        }
        .tech-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .tech-card .tech-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .tech-card .tech-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--accent);
        }
        .tech-card h4 {
            font-size: 1.05rem;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .tech-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Team ===== */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .team-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            text-align: center;
            transition: var(--transition);
        }
        .team-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .team-card .avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--primary);
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--accent);
        }
        .team-card h4 {
            font-size: 1.05rem;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .team-card .title {
            font-size: 0.88rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 10px;
        }
        .team-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ===== Commitment ===== */
        .commit-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .commit-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
        }
        .commit-card:hover {
            background: rgba(255,255,255,0.10);
            border-color: var(--accent);
        }
        .commit-card .c-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            background: rgba(212,168,67,0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .commit-card .c-icon svg {
            width: 24px;
            height: 24px;
            fill: var(--accent);
        }
        .commit-card h4 {
            font-size: 1.1rem;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .commit-card p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.75);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            line-height: 1.75;
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            padding: 72px 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section .cta-desc {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.85);
            max-width: 540px;
            margin: 0 auto 32px;
        }
        .cta-form {
            max-width: 560px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .cta-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .cta-form input,
        .cta-form textarea {
            padding: 14px 18px;
            border: 1px solid rgba(255,255,255,0.25);
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.10);
            color: #fff;
            font-size: 0.95rem;
            transition: var(--transition);
            width: 100%;
        }
        .cta-form input::placeholder,
        .cta-form textarea::placeholder {
            color: rgba(255,255,255,0.6);
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            outline: none;
            border-color: var(--accent);
            background: rgba(255,255,255,0.18);
        }
        .cta-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .cta-form .btn-submit {
            padding: 14px 32px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            font-weight: 700;
            transition: var(--transition);
            width: 100%;
        }
        .cta-form .btn-submit:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 20px rgba(212,168,67,0.4);
            transform: translateY(-1px);
        }
        .cta-form .btn-submit:active {
            transform: scale(0.97);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-col .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-col .desc {
            font-size: 0.88rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            text-decoration: none;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.6);
            margin-bottom: 10px;
        }
        .contact-item svg {
            width: 18px;
            height: 18px;
            fill: var(--accent);
            flex-shrink: 0;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-bottom a:hover { text-decoration: underline; }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 16px 0 0;
            margin-top: var(--header-height);
            background: var(--bg-light);
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb .container {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--primary);
            text-decoration: none;
        }
        .breadcrumb a:hover { text-decoration: underline; }
        .breadcrumb .sep { color: var(--border); }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .main-nav { display: none; }
            .hamburger { display: flex; }
            .bottom-tab { display: block; }
            .mobile-drawer { display: block; }
            .tech-grid { grid-template-columns: repeat(2, 1fr); }
            .team-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .page-hero h1 { font-size: 2.2rem; }
            .about-intro-grid { grid-template-columns: 1fr; gap: 32px; }
            .about-intro-grid .image-col { order: -1; }
        }

        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .page-hero { padding: 100px 0 60px; min-height: 300px; }
            .page-hero h1 { font-size: 1.8rem; }
            .page-hero .subtitle { font-size: 1rem; }
            .hero-stats { gap: 24px; }
            .hero-stats .stat-item .num { font-size: 1.6rem; }
            .section-header h2 { font-size: 1.5rem; }
            .mvv-grid { grid-template-columns: 1fr; }
            .tech-grid { grid-template-columns: 1fr 1fr; }
            .team-grid { grid-template-columns: 1fr; }
            .commit-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .cta-form .form-row { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .timeline::before { left: 18px; }
            .timeline-item { padding-left: 48px; }
            .timeline-item .marker { left: 8px; width: 16px; height: 16px; }
            .breadcrumb .container { font-size: 0.78rem; flex-wrap: wrap; }
        }

        @media (max-width: 520px) {
            .page-hero h1 { font-size: 1.5rem; }
            .hero-stats .stat-item .num { font-size: 1.3rem; }
            .tech-grid { grid-template-columns: 1fr; }
            .section-header .section-desc { font-size: 0.92rem; }
            .faq-question { font-size: 0.92rem; padding: 14px 16px; }
            .faq-answer { font-size: 0.88rem; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }

        /* ===== Scroll animation ===== */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
:root {
            --primary: #0C2D5C;
            --primary-light: #1A4B8C;
            --primary-dark: #081D3A;
            --gold: #D4A843;
            --gold-light: #E0B95A;
            --gold-dark: #B8922E;
            --bg-light: #F8F9FA;
            --bg-dark: #1A1A2E;
            --text-primary: #1E1E1E;
            --text-secondary: #555555;
            --text-light: #FFFFFF;
            --text-muted: #CFD8DC;
            --border-color: #E5E7EB;
            --danger: #E74C3C;
            --success: #27AE60;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 2px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --container-max: 1200px;
            --header-height: 64px;
            --mobile-tab-height: 56px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            padding-top: var(--header-height);
            padding-bottom: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.98);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 6px rgba(0, 0, 0, 0.04);
            z-index: 1000;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }

        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--gold);
            border-radius: 8px;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .logo span:last-child {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
            text-decoration: none;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: var(--transition);
            border-radius: 2px;
        }

        .main-nav a:hover {
            color: var(--primary);
            text-decoration: none;
        }

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

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            background: var(--gold);
            color: #fff !important;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none !important;
        }

        .nav-cta:hover {
            background: var(--gold-dark);
            box-shadow: 0 2px 12px rgba(212, 168, 67, 0.4);
            transform: translateY(-1px);
            color: #fff !important;
        }

        .nav-cta::after {
            display: none !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            background: none;
            border: none;
        }

        .hamburger span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-menu-overlay.open {
            display: block;
            opacity: 1;
        }

        .mobile-menu {
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: #fff;
            padding: 20px 24px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
            z-index: 1000;
            transform: translateY(-20px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }

        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-menu a {
            display: block;
            padding: 14px 0;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-color);
            text-decoration: none;
        }

        .mobile-menu a:last-child {
            border-bottom: none;
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .mobile-menu .nav-cta {
            display: inline-flex;
            margin-top: 12px;
            text-align: center;
            justify-content: center;
        }

        /* ===== Mobile Bottom Tab ===== */
        .mobile-bottom-tab {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: var(--mobile-tab-height);
            background: #fff;
            border-top: 1px solid var(--border-color);
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
            z-index: 1000;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
        }

        .mobile-bottom-tab .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            font-size: 0.7rem;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 4px 8px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            min-width: 56px;
        }

        .mobile-bottom-tab .tab-item svg {
            width: 22px;
            height: 22px;
            fill: currentColor;
            transition: var(--transition);
        }

        .mobile-bottom-tab .tab-item.active {
            color: var(--gold);
        }

        .mobile-bottom-tab .tab-item.active svg {
            fill: var(--gold);
        }

        .mobile-bottom-tab .tab-item:hover {
            color: var(--primary);
        }

        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-bottom-tab {
                display: flex;
            }

            body {
                padding-bottom: var(--mobile-tab-height);
            }
        }

        @media (min-width: 1024px) {
            .hamburger {
                display: none !important;
            }

            .mobile-menu,
            .mobile-menu-overlay {
                display: none !important;
            }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #1A3A6A 100%);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(12, 45, 92, 0.85) 0%, rgba(26, 26, 46, 0.7) 100%);
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }

        .page-hero .hero-sub {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .page-hero .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 12px;
        }

        .page-hero .hero-stat {
            text-align: center;
        }

        .page-hero .hero-stat .num {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--gold);
            display: block;
            line-height: 1.2;
        }

        .page-hero .hero-stat .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 50px;
                min-height: 240px;
            }

            .page-hero h1 {
                font-size: 1.8rem;
            }

            .page-hero .hero-sub {
                font-size: 1rem;
            }

            .page-hero .hero-stats {
                gap: 24px;
            }

            .page-hero .hero-stat .num {
                font-size: 1.6rem;
            }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: #fff;
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 12px;
        }

        .section-title.light {
            color: var(--text-light);
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 44px;
            line-height: 1.7;
        }

        .section-sub.light {
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
        }

        /* ===== Grids ===== */
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

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

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        @media (max-width: 1023px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .grid-4,
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== Cards ===== */
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

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

        .card .card-icon {
            width: 52px;
            height: 52px;
            background: rgba(12, 45, 92, 0.08);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .card .card-icon svg {
            width: 28px;
            height: 28px;
            fill: var(--primary);
            transition: var(--transition);
        }

        .card:hover .card-icon {
            background: var(--primary);
        }

        .card:hover .card-icon svg {
            fill: var(--gold);
        }

        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 500;
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }

        .card .card-link:hover {
            color: var(--gold);
            gap: 10px;
        }

        .card .card-link svg {
            width: 16px;
            height: 16px;
            fill: currentColor;
        }

        /* Dark card variant */
        .card-dark {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.1);
        }

        .card-dark h3 {
            color: var(--text-light);
        }

        .card-dark p {
            color: var(--text-muted);
        }

        .card-dark .card-icon {
            background: rgba(212, 168, 67, 0.15);
        }

        .card-dark .card-icon svg {
            fill: var(--gold);
        }

        .card-dark:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--gold);
        }

        /* ===== Feature Comparison ===== */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .comparison-col h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--border-color);
        }

        .comparison-col.pros h3 {
            color: var(--success);
            border-color: var(--success);
        }

        .comparison-col.cons h3 {
            color: var(--danger);
            border-color: var(--danger);
        }

        .comparison-col ul {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .comparison-col ul li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            padding: 12px 16px;
            background: rgba(0, 0, 0, 0.02);
            border-radius: var(--radius-md);
        }

        .comparison-col .icon-badge {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.8rem;
            font-weight: 700;
            color: #fff;
            margin-top: 2px;
        }

        .comparison-col.pros .icon-badge {
            background: var(--success);
        }

        .comparison-col.cons .icon-badge {
            background: var(--danger);
        }

        .comparison-divider {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--text-muted);
            font-weight: 300;
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .comparison-divider {
                display: none;
            }
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            text-align: center;
            padding: 32px 20px 28px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

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

        .step-card .step-num {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: var(--gold);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            margin: 0 auto 16px;
            transition: var(--transition);
        }

        .step-card:hover .step-num {
            background: var(--gold);
            color: var(--primary);
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        @media (max-width: 1023px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            background: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 16px;
        }

        .faq-question:hover {
            background: rgba(12, 45, 92, 0.03);
        }

        .faq-question .icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            transition: var(--transition);
            color: var(--gold);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 16px;
                font-size: 0.9rem;
            }

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

        /* ===== CTA Section ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto 32px;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            font-size: 1rem;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none !important;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--gold);
            color: #fff !important;
            border-color: var(--gold);
        }

        .btn-primary:hover {
            background: var(--gold-dark);
            border-color: var(--gold-dark);
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.4);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-light) !important;
            border-color: rgba(255, 255, 255, 0.5);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: var(--primary);
            color: #fff !important;
            border-color: var(--primary);
        }

        .btn-dark:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            box-shadow: 0 4px 16px rgba(12, 45, 92, 0.3);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 50px 0;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }

        /* ===== Form ===== */
        .form-card {
            max-width: 600px;
            margin: 0 auto;
            background: #fff;
            padding: 40px 36px;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
        }

        .form-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-group label {
            display: block;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: 0.95rem;
            color: var(--text-primary);
            background: var(--bg-light);
            transition: var(--transition);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(12, 45, 92, 0.1);
            background: #fff;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 100px;
        }

        .form-group .btn {
            width: 100%;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .form-card {
                padding: 28px 20px;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-muted);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col .logo {
            color: var(--text-light);
            margin-bottom: 14px;
        }

        .footer-col .logo .logo-icon {
            background: var(--gold);
            color: var(--primary);
        }

        .footer-col .logo span:last-child {
            color: var(--text-light);
        }

        .footer-col .desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
        }

        .contact-item svg {
            width: 18px;
            height: 18px;
            fill: var(--gold);
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--gold);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            text-decoration: underline;
        }

        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 70px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Scenario Section ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .scenario-card .scenario-img {
            height: 180px;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .scenario-card .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.8;
        }

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

        .scenario-card .scenario-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .scenario-card .scenario-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        @media (max-width: 1023px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 40px 0;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stat-item .num {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--gold);
            display: block;
            line-height: 1.2;
        }

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

        @media (max-width: 1023px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item .num {
                font-size: 1.8rem;
            }
        }

        /* ===== Badge / Tag ===== */
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(212, 168, 67, 0.15);
            color: var(--gold-dark);
        }

        .badge-blue {
            background: rgba(12, 45, 92, 0.1);
            color: var(--primary);
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeInUp 0.6s ease forwards;
        }

        .animate-fade-up.delay-1 {
            animation-delay: 0.1s;
        }
        .animate-fade-up.delay-2 {
            animation-delay: 0.2s;
        }
        .animate-fade-up.delay-3 {
            animation-delay: 0.3s;
        }
        .animate-fade-up.delay-4 {
            animation-delay: 0.4s;
        }

        /* ===== Scroll reveal ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Misc ===== */
        .text-center {
            text-align: center;
        }

        .mt-12 {
            margin-top: 12px;
        }
        .mt-20 {
            margin-top: 20px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-12 {
            margin-bottom: 12px;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }

        .gap-8 {
            gap: 8px;
        }

        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== Responsive fine-tune ===== */
        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 1.5rem;
            }

            .page-hero .hero-sub {
                font-size: 0.9rem;
            }

            .card {
                padding: 20px 16px;
            }

            .section-title {
                font-size: 1.25rem;
            }
        }