/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #D62828;
            --primary-dark: #B71C1C;
            --primary-light: #FF6B6B;
            --secondary: #003049;
            --secondary-light: #1D5573;
            --accent: #F77F00;
            --accent-light: #FFB347;
            --bg: #F5F5F5;
            --bg-card: #FFFFFF;
            --bg-dark: #1A1A2E;
            --text: #1D1D1D;
            --text-light: #6C757D;
            --text-white: #FFFFFF;
            --border: #E0E0E0;
            --border-light: #F0F0F0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-full: 50px;
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
        input, textarea { font-family: inherit; font-size: inherit; transition: var(--transition); }
        input:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(214,40,40,0.15); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
        h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
        h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); }
        h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
        h4 { font-size: 1.1rem; }
        p { margin-bottom: 1rem; }
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== 通用组件 ===== */
        .section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
            margin-bottom: 12px;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            color: var(--text-light);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.4;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white) !important;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(214,40,40,0.35);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(214,40,40,0.25); }
        .btn-secondary {
            background: transparent;
            color: var(--text-white) !important;
            border-color: var(--text-white);
        }
        .btn-secondary:hover {
            background: var(--text-white);
            color: var(--secondary) !important;
            transform: translateY(-2px);
        }
        .btn-secondary:active { transform: translateY(0); }
        .btn-accent {
            background: var(--accent);
            color: var(--text-white) !important;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: #E06A00;
            border-color: #E06A00;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(247,127,0,0.35);
        }
        .btn-accent:active { transform: translateY(0); }
        .btn-lg { padding: 16px 44px; font-size: 1.1rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(214,40,40,0.1);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(247,127,0,0.12);
            color: var(--accent);
        }
        .badge-secondary {
            background: rgba(0,48,73,0.1);
            color: var(--secondary);
        }
        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg);
            color: var(--text-light);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
        .divider {
            width: 100%;
            height: 1px;
            background: var(--border);
            margin: 40px 0;
        }
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--secondary) !important;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo i { color: var(--primary); font-size: 1.6rem; }
        .logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .nav-main { display: flex; align-items: center; gap: 8px; }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text) !important;
            transition: var(--transition);
            position: relative;
        }
        .nav-main a:hover { background: rgba(214,40,40,0.06); color: var(--primary) !important; }
        .nav-main a.active { background: var(--primary); color: var(--text-white) !important; }
        .nav-main a.active:hover { background: var(--primary-dark); }
        .nav-search {
            flex: 1;
            max-width: 380px;
            margin: 0 20px;
            position: relative;
        }
        .nav-search input {
            width: 100%;
            padding: 10px 20px 10px 44px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            background: var(--bg);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .nav-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(214,40,40,0.1); background: var(--bg-card); }
        .nav-search i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.95rem;
            pointer-events: none;
        }
        .nav-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: transparent;
        }
        .nav-toggle:hover { background: var(--bg); }
        .nav-overlay { display: none; }

        /* ===== Hero ===== */
        .hero {
            padding-top: var(--nav-height);
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0,48,73,0.85) 0%, rgba(214,40,40,0.55) 100%);
            z-index: 1;
        }
        .hero .container { position: relative; z-index: 2; }
        .hero-content { max-width: 700px; }
        .hero-content h1 {
            color: var(--text-white);
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
        }
        .hero-content h1 i { color: var(--accent); }
        .hero-content p {
            color: rgba(255,255,255,0.9);
            font-size: 1.15rem;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 580px;
        }
        .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.2);
        }
        .hero-stat { text-align: center; }
        .hero-stat .num {
            display: block;
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
        }
        .hero-stat .label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        /* ===== 核心特点 ===== */
        .features { background: var(--bg-card); }
        .feature-card {
            text-align: center;
            padding: 40px 28px;
            border-radius: var(--radius-md);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            background: var(--bg-card);
        }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
        .feature-card .icon {
            width: 72px;
            height: 72px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-lg);
            font-size: 2rem;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary), var(--accent));
        }
        .feature-card h3 { margin-bottom: 12px; font-size: 1.25rem; }
        .feature-card p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 0; }

        /* ===== 分类入口 ===== */
        .category-section { background: var(--bg); }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 280px;
            display: flex;
            align-items: flex-end;
            background: url('/assets/images/coverpic/cover-1.png') center center / cover no-repeat;
            transition: var(--transition);
        }
        .category-card::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, transparent 60%);
            z-index: 1;
            transition: var(--transition);
        }
        .category-card:hover::before { background: linear-gradient(0deg, rgba(0,0,0,0.85) 0%, transparent 50%); }
        .category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .category-card .info {
            position: relative;
            z-index: 2;
            padding: 28px 24px;
            color: var(--text-white);
            width: 100%;
        }
        .category-card .info h3 { color: var(--text-white); font-size: 1.3rem; margin-bottom: 6px; }
        .category-card .info p { color: rgba(255,255,255,0.8); font-size: 0.9rem; margin-bottom: 14px; }
        .category-card .info .btn-sm { background: var(--accent); color: var(--text-white) !important; border: none; }
        .category-card .info .btn-sm:hover { background: #E06A00; }

        /* ===== 最新资讯 ===== */
        .news-section { background: var(--bg-card); }
        .news-card {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .news-card .thumb {
            height: 200px;
            background: var(--bg) center center / cover no-repeat;
            position: relative;
            flex-shrink: 0;
        }
        .news-card .thumb .badge {
            position: absolute;
            top: 12px;
            left: 12px;
        }
        .news-card .body { padding: 20px 22px 22px; flex: 1; display: flex; flex-direction: column; }
        .news-card .body .meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .news-card .body .meta i { font-size: 0.75rem; }
        .news-card .body h3 { font-size: 1.05rem; margin-bottom: 8px; line-height: 1.4; }
        .news-card .body h3 a { color: var(--text) !important; }
        .news-card .body h3 a:hover { color: var(--primary) !important; }
        .news-card .body p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 16px; flex: 1; }
        .news-card .body .read-more {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary) !important;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-card .body .read-more:hover { gap: 8px; }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            background: var(--bg);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .news-empty i { font-size: 2.5rem; margin-bottom: 16px; color: var(--border); display: block; }

        /* ===== 数据展示 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0D2137 100%);
            color: var(--text-white);
        }
        .stats-section .section-title h2 { color: var(--text-white); }
        .stats-section .section-title h2::after { background: var(--accent); }
        .stats-section .section-title p { color: rgba(255,255,255,0.7); }
        .stat-block { text-align: center; padding: 32px 16px; }
        .stat-block .num { font-size: 2.8rem; font-weight: 800; color: var(--accent); display: block; line-height: 1.2; }
        .stat-block .label { font-size: 0.95rem; color: rgba(255,255,255,0.75); margin-top: 8px; }

        /* ===== 流程步骤 ===== */
        .steps-section { background: var(--bg); }
        .step-card {
            text-align: center;
            padding: 36px 24px;
            position: relative;
        }
        .step-card .step-num {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary), var(--accent));
        }
        .step-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
        .step-card p { color: var(--text-light); font-size: 0.9rem; margin-bottom: 0; }
        .step-arrow { display: flex; align-items: center; justify-content: center; font-size: 1.6rem; color: var(--primary); opacity: 0.4; }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-card); }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border); box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            background: transparent;
            width: 100%;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-question:hover { background: var(--bg); }
        .faq-question i { color: var(--primary); font-size: 0.85rem; transition: var(--transition); }
        .faq-question.active i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }
        .faq-answer.open {
            padding: 0 24px 20px;
            max-height: 300px;
        }
        .faq-answer p { color: var(--text-light); font-size: 0.95rem; margin-bottom: 0; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            text-align: center;
            padding: 80px 0;
            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;
            pointer-events: none;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: var(--text-white); font-size: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.9); font-size: 1.05rem; max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn { background: var(--text-white); color: var(--primary) !important; border-color: var(--text-white); }
        .cta-section .btn:hover { background: transparent; color: var(--text-white) !important; border-color: var(--text-white); transform: translateY(-2px); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .site-footer .grid-4 { gap: 40px; }
        .site-footer h4 { color: var(--text-white); font-size: 1.05rem; margin-bottom: 18px; }
        .site-footer p { font-size: 0.9rem; line-height: 1.8; margin-bottom: 0; }
        .site-footer a { color: rgba(255,255,255,0.7) !important; font-size: 0.9rem; }
        .site-footer a:hover { color: var(--accent) !important; }
        .footer-links li { margin-bottom: 10px; }
        .footer-links li i { width: 18px; color: var(--accent); font-size: 0.8rem; margin-right: 6px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.6) !important; }
        .footer-bottom a:hover { color: var(--accent) !important; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7) !important;
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--text-white) !important; transform: translateY(-2px); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: 1fr 1fr; }
            .nav-search { max-width: 260px; margin: 0 12px; }
            .hero-stats { gap: 24px; }
        }
        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
            .nav-main { display: none; }
            .nav-search { max-width: 100%; margin: 0 12px; }
            .nav-toggle { display: block; }
            .nav-overlay {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(0,0,0,0.5);
                z-index: 998;
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .nav-overlay.open { opacity: 1; pointer-events: auto; }
            .nav-mobile {
                position: fixed;
                top: 0;
                right: -300px;
                width: 280px;
                height: 100vh;
                background: var(--bg-card);
                z-index: 999;
                padding: 80px 24px 24px;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
                overflow-y: auto;
            }
            .nav-mobile.open { right: 0; }
            .nav-mobile a {
                display: block;
                padding: 14px 16px;
                border-radius: var(--radius-sm);
                font-weight: 500;
                color: var(--text) !important;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-mobile a:last-child { border-bottom: none; }
            .nav-mobile a:hover { background: var(--bg); color: var(--primary) !important; }
            .nav-mobile a.active { background: var(--primary); color: var(--text-white) !important; }
            .nav-mobile .close-btn {
                position: absolute;
                top: 16px;
                right: 16px;
                font-size: 1.5rem;
                color: var(--text);
                padding: 6px 10px;
                border-radius: var(--radius-sm);
            }
            .nav-mobile .close-btn:hover { background: var(--bg); }
            .hero { min-height: 70vh; text-align: center; }
            .hero-content { margin: 0 auto; text-align: center; }
            .hero-content p { margin-left: auto; margin-right: auto; }
            .hero-actions { justify-content: center; }
            .hero-stats { justify-content: center; flex-wrap: wrap; gap: 20px; }
            .hero-stat .num { font-size: 1.6rem; }
            .category-card { height: 220px; }
            .step-arrow { transform: rotate(90deg); padding: 8px 0; }
            .site-footer .grid-4 > div { text-align: center; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .footer-social { justify-content: center; }
        }
        @media (max-width: 520px) {
            .hero { min-height: 60vh; padding-top: var(--nav-height); }
            .hero-content h1 { font-size: 1.8rem; }
            .hero-content p { font-size: 0.95rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .hero-actions .btn { width: 100%; max-width: 280px; }
            .hero-stats { flex-direction: column; gap: 12px; align-items: center; }
            .section-title h2 { font-size: 1.4rem; }
            .news-card .thumb { height: 160px; }
            .stat-block .num { font-size: 2rem; }
            .cta-section { padding: 56px 0; }
            .site-footer { padding: 40px 0 20px; }
        }

/* roulang page: article */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2a44;
            --accent: #f0c040;
            --accent-light: #f5d870;
            --accent-dark: #d4a830;
            --bg: #f8f9fc;
            --bg-alt: #eef2f7;
            --bg-dark: #0f1a2e;
            --text: #1e2a3a;
            --text-light: #5a6a7a;
            --text-white: #f0f4f8;
            --border: #dce4ed;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.25s ease;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-w: 1200px;
            --header-h: 72px;
        }

        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; border: none; outline: none; }
        .container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--primary); font-weight: 700; }
        .text-center { text-align: center; }
        .mb-1 { margin-bottom: 12px; }
        .mb-2 { margin-bottom: 24px; }
        .mb-3 { margin-bottom: 40px; }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
            height: var(--header-h);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 16px;
            flex-wrap: nowrap;
        }
        .logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i { color: var(--accent); font-size: 1.5rem; }
        .logo span { color: var(--primary-dark); }

        /* 搜索框 */
        .search-box {
            flex: 1;
            max-width: 480px;
            position: relative;
            margin: 0 16px;
        }
        .search-box input {
            width: 100%;
            padding: 10px 20px 10px 44px;
            border-radius: 40px;
            border: 1.5px solid var(--border);
            background: var(--bg-alt);
            font-size: 0.95rem;
            transition: var(--transition);
            color: var(--text);
        }
        .search-box input:focus {
            border-color: var(--accent);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(240,192,64,0.15);
        }
        .search-box i {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 1rem;
            pointer-events: none;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-main a:hover { background: var(--bg-alt); color: var(--primary); }
        .nav-main a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26,58,92,0.25);
        }

        .menu-toggle { display: none; background: none; font-size: 1.6rem; color: var(--primary); cursor: pointer; padding: 4px 8px; }

        /* ===== Article Hero ===== */
        .article-hero {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 60px 0 50px;
            position: relative;
            color: var(--text-white);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,46,0.82) 0%, rgba(26,58,92,0.70) 100%);
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            font-size: 2rem;
            color: #fff;
            max-width: 800px;
            margin-bottom: 12px;
            line-height: 1.35;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.75);
            margin-top: 8px;
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }
        .article-meta .category-badge {
            background: var(--accent);
            color: var(--primary-dark);
            padding: 2px 16px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 0.8rem;
        }

        /* ===== Article Body ===== */
        .article-section { padding: 50px 0 60px; }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }
        .article-content {
            background: #fff;
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .article-content .featured-img {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 28px;
            max-height: 420px;
            object-fit: cover;
        }
        .article-body p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            color: var(--text);
        }
        .article-body h2 {
            margin-top: 36px;
            margin-bottom: 16px;
            font-size: 1.5rem;
            color: var(--primary);
            border-left: 4px solid var(--accent);
            padding-left: 16px;
        }
        .article-body h3 {
            margin-top: 28px;
            margin-bottom: 12px;
            font-size: 1.2rem;
        }
        .article-body ul, .article-body ol {
            margin: 16px 0 20px 24px;
            list-style: disc;
        }
        .article-body li { margin-bottom: 8px; font-size: 1.02rem; }
        .article-body img { margin: 20px 0; border-radius: var(--radius-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-alt);
            padding: 16px 24px;
            margin: 20px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .article-tags span {
            background: var(--bg-alt);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .article-tags i { color: var(--accent); margin-right: 4px; }

        /* sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h4 i { color: var(--accent); }
        .sidebar-links li { margin-bottom: 10px; }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text);
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 1px solid var(--bg-alt);
        }
        .sidebar-links a:hover { color: var(--accent-dark); padding-left: 4px; }
        .sidebar-links i { color: var(--accent); font-size: 0.7rem; }

        /* not found */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .not-found-box i { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); }
        .not-found-box .btn-back { margin-top: 24px; }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            padding: 60px 0;
            position: relative;
            color: #fff;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,46,0.80) 0%, rgba(26,58,92,0.75) 100%);
        }
        .cta-block .container { position: relative; z-index: 2; text-align: center; }
        .cta-block h2 { color: #fff; font-size: 1.8rem; margin-bottom: 12px; }
        .cta-block p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 28px; font-size: 1.05rem; }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(240,192,64,0.35);
        }
        .btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(240,192,64,0.45); color: var(--primary-dark); }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; color: #fff; transform: translateY(-2px); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 24px;
        }
        .site-footer .grid-4 {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .site-footer h4 { color: #fff; font-size: 1.05rem; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .site-footer h4 i { color: var(--accent); }
        .site-footer p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); }
        .footer-links li { margin-bottom: 8px; }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-links i { font-size: 0.6rem; color: var(--accent); }
        .footer-links .fa-envelope, .footer-links .fa-clock { font-size: 0.85rem; color: var(--accent); }
        .footer-social { display: flex; gap: 14px; margin-top: 4px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary-dark); transform: scale(1.08); }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: var(--accent); }
        .footer-bottom a:hover { text-decoration: underline; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .site-footer .grid-4 { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .header-inner { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 8px; }
            .site-header { height: auto; }
            .search-box { order: 3; max-width: 100%; margin: 4px 0 0; flex: 0 0 100%; }
            .nav-main { gap: 4px; }
            .nav-main a { padding: 6px 14px; font-size: 0.8rem; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-content { padding: 24px 20px; }
            .article-content .featured-img { max-height: 240px; }
            .article-body p { font-size: 1rem; }
            .article-body h2 { font-size: 1.3rem; }
            .site-footer .grid-4 { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
            .cta-block h2 { font-size: 1.4rem; }
            .btn { padding: 12px 28px; font-size: 0.95rem; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .logo { font-size: 1.1rem; }
            .nav-main a { padding: 4px 10px; font-size: 0.75rem; }
            .article-hero { padding: 36px 0 30px; }
            .article-hero h1 { font-size: 1.2rem; }
            .article-meta { font-size: 0.8rem; gap: 8px 16px; }
            .article-content { padding: 16px 14px; }
            .article-body p { font-size: 0.95rem; }
            .sidebar-card { padding: 16px; }
            .cta-block { padding: 40px 0; }
            .cta-block h2 { font-size: 1.2rem; }
            .not-found-box { padding: 40px 16px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #0b2b5e;
            --primary-light: #13408a;
            --primary-dark: #071d40;
            --accent: #f5a623;
            --accent-light: #f7b845;
            --accent-dark: #d48e1a;
            --bg-body: #f4f7fc;
            --bg-card: #ffffff;
            --bg-dark: #0b1a2e;
            --bg-section-alt: #eaf0f7;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-light: #7a8a9a;
            --text-white: #f0f4fa;
            --border-color: #dce4ed;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --font-family: 'Segoe UI', 'PingFang SC', Roboto, 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
            --transition: 0.25s ease;
        }

        /* ===== 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: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: var(--radius-sm); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--primary); }
        ::selection { background: var(--accent); color: #fff; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.96);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
        }
        .logo i { color: var(--accent); font-size: 1.6rem; }
        .logo:hover { color: var(--primary); }
        .logo span { color: var(--accent); }

        /* Search Bar (nav center) */
        .nav-search {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin: 0 12px;
        }
        .nav-search input {
            width: 100%;
            padding: 10px 20px 10px 44px;
            border: 2px solid var(--border-color);
            border-radius: 50px;
            background: var(--bg-body);
            font-size: 0.95rem;
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
        }
        .nav-search input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(245,166,35,0.15);
        }
        .nav-search .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 1rem;
            pointer-events: none;
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-main a:hover {
            background: rgba(11,43,94,0.06);
            color: var(--primary);
        }
        .nav-main a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-sm);
        }
        .nav-main a.active:hover {
            background: var(--primary-light);
        }

        /* Mobile toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(0,0,0,0.04); }

        /* ===== Hero / Banner ===== */
        .banner {
            position: relative;
            background: var(--primary-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 24px 60px;
            isolation: isolate;
        }
        .banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7,29,64,0.82) 0%, rgba(11,43,94,0.70) 100%);
            z-index: 1;
        }
        .banner .container { position: relative; z-index: 2; }
        .banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.3);
        }
        .banner p {
            font-size: 1.2rem;
            color: var(--text-white);
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.92;
            line-height: 1.6;
        }
        .banner .breadcrumb {
            margin-top: 20px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.7);
        }
        .banner .breadcrumb a { color: var(--accent); }
        .banner .breadcrumb a:hover { color: #fff; }
        .banner .breadcrumb span { color: rgba(255,255,255,0.6); }

        @media (max-width: 768px) {
            .banner { min-height: 240px; padding: 60px 16px 44px; }
            .banner h1 { font-size: 2rem; }
            .banner p { font-size: 1rem; }
        }
        @media (max-width: 520px) {
            .banner h1 { font-size: 1.6rem; }
            .banner p { font-size: 0.95rem; }
        }

        /* ===== Section Common ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3 {
            color: #fff;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .section-sub {
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 48px;
        }
        .section-dark .section-sub { color: rgba(255,255,255,0.7); }
        .section-dark .section-title { color: #fff; }

        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 1.6rem; }
            .section-sub { font-size: 1rem; margin-bottom: 32px; }
        }

        /* ===== Grid ===== */
        .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
        .grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 24px; }

        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .grid-2 { grid-template-columns: 1fr; }
            .grid-3 { grid-template-columns: 1fr; }
            .grid-4 { grid-template-columns: 1fr; }
        }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
            border: 1px solid rgba(0,0,0,0.04);
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 20px 22px 24px;
        }
        .card-body h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .card-body .card-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }

        /* ===== Feature / Icon Cards ===== */
        .icon-card {
            text-align: center;
            padding: 36px 24px 32px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.04);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .icon-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .icon-card .icon {
            font-size: 2.6rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }
        .icon-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .icon-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== Steps ===== */
        .steps {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 20px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.04);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(245,166,35,0.3);
        }
        .step-item .step-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
            margin-top: 8px;
        }
        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--primary);
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        @media (max-width: 1024px) {
            .steps { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 520px) {
            .steps { grid-template-columns: 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(11,43,94,0.03);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 1.2rem;
            transition: transform 0.3s;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 0.98rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            position: relative;
            isolation: isolate;
            padding: 72px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11,43,94,0.88) 0%, rgba(7,29,64,0.78) 100%);
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .btn {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            transition: transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 24px rgba(245,166,35,0.35);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(245,166,35,0.40);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.6);
        }
        .btn-outline:hover {
            background: rgba(255,255,255,0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 52px;
            font-size: 1.15rem;
        }

        @media (max-width: 768px) {
            .cta-section { padding: 52px 0; }
            .cta-section h2 { font-size: 1.6rem; }
            .cta-section p { font-size: 1rem; }
            .btn-lg { padding: 14px 36px; font-size: 1rem; }
        }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            background: rgba(245,166,35,0.12);
            color: var(--accent-dark);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 50px;
            margin-right: 6px;
            margin-bottom: 6px;
            transition: background var(--transition);
        }
        .tag:hover {
            background: rgba(245,166,35,0.22);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item {
            background: rgba(255,255,255,0.06);
            border-radius: var(--radius-md);
            padding: 32px 16px;
            border: 1px solid rgba(255,255,255,0.08);
            transition: background var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            background: rgba(255,255,255,0.10);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 1rem;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .stat-number { font-size: 2.2rem; }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 20px 12px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer p {
            font-size: 0.95rem;
            line-height: 1.7;
            color: rgba(255,255,255,0.6);
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.95rem;
            transition: color var(--transition), padding-left var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-links i {
            font-size: 0.7rem;
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 8px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.3rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: scale(1.08);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.9rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: var(--accent); }
        .footer-bottom a:hover { color: #fff; }

        @media (max-width: 768px) {
            .site-footer { padding: 40px 0 0; }
            .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
            .footer-social { justify-content: center; }
        }

        /* ===== Responsive Nav ===== */
        @media (max-width: 768px) {
            .nav-search { display: none; }
            .nav-main {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(10px);
                -webkit-backdrop-filter: blur(10px);
                flex-direction: column;
                padding: 16px 20px 24px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.3s ease;
                pointer-events: none;
                gap: 4px;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 12px 20px;
                border-radius: var(--radius-sm);
                text-align: center;
            }
            .nav-toggle {
                display: block;
            }
            /* Show search in mobile inside nav */
            .nav-main .nav-search-mobile {
                display: block;
                width: 100%;
                margin: 8px 0 12px;
                position: relative;
            }
            .nav-main .nav-search-mobile input {
                width: 100%;
                padding: 10px 20px 10px 44px;
                border: 2px solid var(--border-color);
                border-radius: 50px;
                background: var(--bg-body);
                font-size: 0.95rem;
                outline: none;
            }
            .nav-main .nav-search-mobile .search-icon {
                position: absolute;
                left: 16px;
                top: 50%;
                transform: translateY(-50%);
                color: var(--text-light);
            }
        }
        @media (min-width: 769px) {
            .nav-main .nav-search-mobile { display: none; }
        }

        /* ===== Extra Utilities ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-16 { gap: 16px; }

        /* ===== Guide Content ===== */
        .guide-intro {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }
        .guide-intro .intro-text {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .guide-highlight {
            background: var(--bg-card);
            border-left: 5px solid var(--accent);
            padding: 20px 28px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            box-shadow: var(--shadow-sm);
            margin: 16px 0;
        }
        .guide-highlight p {
            font-size: 1rem;
            color: var(--text-primary);
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 520px) {
            .logo { font-size: 1.2rem; }
            .logo i { font-size: 1.3rem; }
            .btn { padding: 12px 28px; font-size: 0.95rem; }
            .faq-question { padding: 14px 18px; font-size: 0.98rem; }
            .faq-answer { padding: 0 18px 14px; }
        }