/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a6f;
            --primary-dark: #152b52;
            --primary-light: #2a4f8a;
            --accent: #d4a43a;
            --accent-light: #e8bc5a;
            --accent-dark: #b8892a;
            --bg-body: #f5f7fa;
            --bg-white: #ffffff;
            --bg-light: #edf0f5;
            --bg-dark: #0f1a2e;
            --text-body: #1a1a2e;
            --text-muted: #6b7a8f;
            --text-light: #f0f2f5;
            --border-color: #dee3ea;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
            --transition: all 0.25s ease;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
        }
        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-body);
            line-height: 1.7;
            font-size: 1rem;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; }
        ul, ol { list-style: none; }
        /* ===== 容器 ===== */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .container-narrow { max-width: 900px; }
        /* ===== 导航 ===== */
        .navbar-custom {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 0 20px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 1040;
            box-shadow: var(--shadow-sm);
        }
        .navbar-custom .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .navbar-custom .nav-logo i { color: var(--accent); font-size: 1.6rem; }
        .navbar-custom .nav-logo:hover { color: var(--primary); }
        .nav-links { display: flex; align-items: center; gap: 2px; }
        .nav-links a {
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); background: var(--bg-light); }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; color: var(--primary); cursor: pointer; padding: 4px 8px; }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 16px; width: 100%; }
            .nav-links a.active::after { display: none; }
            .nav-links a.active { background: var(--bg-light); border-radius: var(--radius-sm); }
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            pointer-events: none;
        }
        .hero .container { position: relative; z-index: 2; }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            max-width: 780px;
            margin-bottom: 18px;
            letter-spacing: -0.3px;
        }
        .hero .hero-sub {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero .btn-hero {
            display: inline-block;
            padding: 14px 40px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary-dark);
            background: var(--accent);
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(212,164,58,0.3);
        }
        .hero .btn-hero:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(212,164,58,0.35); color: var(--primary-dark); }
        .hero .btn-hero i { margin-left: 8px; }
        .hero-stats { margin-top: 48px; display: flex; gap: 40px; flex-wrap: wrap; }
        .hero-stats .stat-item { color: rgba(255,255,255,0.85); }
        .hero-stats .stat-num { font-size: 1.8rem; font-weight: 700; color: #fff; }
        .hero-stats .stat-label { font-size: 0.85rem; opacity: 0.75; margin-top: 2px; }
        @media (max-width: 768px) {
            .hero { min-height: 400px; padding: 60px 0 40px; }
            .hero h1 { font-size: 2rem; }
            .hero .hero-sub { font-size: 1rem; }
            .hero-stats { gap: 24px; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.7rem; }
            .hero .btn-hero { padding: 12px 28px; font-size: 0.95rem; }
            .hero-stats .stat-num { font-size: 1.4rem; }
        }
        /* ===== 通用板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.2px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .section-header { text-align: center; margin-bottom: 48px; }
        .section-header .section-title { margin-bottom: 10px; }
        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-white);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .card-custom .card-img-top { width: 100%; height: 200px; object-fit: cover; }
        .card-custom .card-body { padding: 24px; }
        .card-custom .card-title { font-size: 1.15rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .card-custom .card-text { font-size: 0.92rem; color: var(--text-muted); line-height: 1.6; }
        .card-custom .card-tag {
            display: inline-block;
            padding: 2px 12px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent-dark);
            background: rgba(212,164,58,0.12);
            border-radius: 20px;
            margin-bottom: 10px;
        }
        .card-custom .card-footer {
            background: transparent;
            border-top: 1px solid var(--border-color);
            padding: 14px 24px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        /* ===== 特色/图标卡片 ===== */
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: #fff;
        }
        .feature-card .icon-wrap.accent { background: linear-gradient(135deg, var(--accent), var(--accent-light)); }
        .feature-card h5 { font-size: 1.1rem; font-weight: 600; color: var(--primary); margin-bottom: 8px; }
        .feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 0; }
        /* ===== 按钮 ===== */
        .btn-outline-primary-custom {
            border: 2px solid var(--primary);
            color: var(--primary);
            background: transparent;
            border-radius: 50px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .btn-outline-primary-custom:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .btn-accent {
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            border-radius: 50px;
            padding: 12px 32px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 6px 20px rgba(212,164,58,0.25);
        }
        .btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(212,164,58,0.3); color: var(--primary-dark); }
        /* ===== 资讯列表 ===== */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:last-child { border-bottom: none; }
        .news-item:hover { padding-left: 8px; }
        .news-item .news-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .news-item .news-meta { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 4px; display: flex; gap: 12px; flex-wrap: wrap; }
        .news-item .news-meta .cat { color: var(--accent); font-weight: 500; }
        .news-item .news-title { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin-bottom: 4px; transition: var(--transition); }
        .news-item:hover .news-title { color: var(--accent); }
        .news-item .news-excerpt { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
        @media (max-width: 576px) {
            .news-item { flex-direction: column; gap: 12px; }
            .news-item .news-thumb { width: 100%; height: 140px; }
        }
        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { box-shadow: var(--shadow-md); }
        .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            user-select: none;
        }
        .faq-q i { color: var(--accent); transition: var(--transition); font-size: 1.1rem; }
        .faq-q[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-a {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.8); max-width: 560px; margin: 0 auto 28px; }
        .cta-section .btn-cta {
            display: inline-block;
            padding: 14px 44px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary-dark);
            background: var(--accent);
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(212,164,58,0.35);
        }
        .cta-section .btn-cta:hover { background: var(--accent-light); transform: translateY(-3px); box-shadow: 0 14px 36px rgba(212,164,58,0.4); color: var(--primary-dark); }
        /* ===== 流程 ===== */
        .step-card {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }
        .step-card .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 14px;
        }
        .step-card h6 { font-size: 1.05rem; font-weight: 600; color: var(--primary); margin-bottom: 6px; }
        .step-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 0; }
        .step-arrow { display: flex; align-items: center; color: var(--accent); font-size: 1.4rem; padding: 0 8px; }
        @media (max-width: 768px) { .step-arrow { transform: rotate(90deg); padding: 8px 0; } }
        /* ===== 统计条 ===== */
        .stat-block {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .stat-block:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
        .stat-block .num { font-size: 2.2rem; font-weight: 800; color: var(--primary); }
        .stat-block .label { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }
        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 28px;
        }
        .footer .footer-brand { font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
        .footer .footer-brand i { color: var(--accent); }
        .footer p { font-size: 0.88rem; line-height: 1.7; max-width: 360px; }
        .footer .footer-links { display: flex; flex-wrap: wrap; gap: 12px 24px; }
        .footer .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.88rem; transition: var(--transition); }
        .footer .footer-links a:hover { color: var(--accent); }
        .footer .footer-divider { border-color: rgba(255,255,255,0.08); margin: 24px 0 16px; }
        .footer .copyright { font-size: 0.82rem; color: rgba(255,255,255,0.4); text-align: center; }
        /* ===== 通用间距 ===== */
        section { padding: 64px 0; }
        .bg-soft { background: var(--bg-light); }
        .bg-white-section { background: var(--bg-white); }
        .gap-grid { gap: 24px; }
        /* ===== 响应式微调 ===== */
        @media (max-width: 768px) {
            section { padding: 48px 0; }
            .section-title { font-size: 1.6rem; }
            .section-sub { font-size: 0.95rem; margin-bottom: 28px; }
            .stat-block .num { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.5rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .card-custom .card-img-top { height: 160px; }
        }
        /* ===== Bootstrap 覆盖 ===== */
        .btn:focus, .btn:active:focus { box-shadow: 0 0 0 0.2rem rgba(212,164,58,0.35); }
        .form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 0.2rem rgba(212,164,58,0.2); }
        a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #3a4a8c;
            --primary-dark: #0e1a4a;
            --secondary: #e8491d;
            --secondary-light: #ff6a3c;
            --accent: #f5c518;
            --bg-light: #f8f9fc;
            --bg-dark: #0e1a2f;
            --text-dark: #1a1a2e;
            --text-muted: #6c757d;
            --text-light: #f0f0f5;
            --border-color: #e2e6ef;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s ease;
            --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            --container-max: 1200px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-body);
            color: var(--text-dark);
            background: #ffffff;
            line-height: 1.7;
            font-size: 16px;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }
        input, textarea, select { font-family: inherit; }

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

        /* ===== 导航栏 ===== */
        .navbar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 40px;
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--transition);
        }
        .navbar-custom .nav-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
        }
        .navbar-custom .nav-logo i { color: var(--secondary); font-size: 26px; }
        .navbar-custom .nav-logo:hover { color: var(--primary); opacity: 0.85; }
        .nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a {
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-dark);
            border-radius: 50px;
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-links a:hover { color: var(--secondary); background: rgba(232,73,29,0.06); }
        .nav-links a.active { color: var(--secondary); background: rgba(232,73,29,0.1); font-weight: 600; }
        .nav-links a.active::after { display: none; }
        .nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--primary); padding: 6px 10px; border-radius: 6px; }
        .nav-toggle:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }

        /* ===== Hero 区 ===== */
        .article-hero {
            padding: 60px 0 50px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #2a4a7a 100%);
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            color: #fff;
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            max-width: 800px;
            margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .article-hero .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.85);
            font-size: 14px;
        }
        .article-hero .meta-line i { margin-right: 6px; color: var(--accent); }
        .article-hero .meta-line span { display: flex; align-items: center; }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding: 14px 0;
            background: var(--bg-light);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-wrap .breadcrumb { margin: 0; background: transparent; padding: 0; font-size: 14px; }
        .breadcrumb-wrap .breadcrumb-item a { color: var(--text-muted); }
        .breadcrumb-wrap .breadcrumb-item.active { color: var(--primary); font-weight: 500; }
        .breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before { color: var(--text-muted); }

        /* ===== 文章正文区 ===== */
        .article-main {
            padding: 50px 0 70px;
            background: #fff;
        }
        .article-content {
            max-width: 860px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-dark);
        }
        .article-content h2, .article-content h3 {
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--primary);
        }
        .article-content h2 { font-size: 26px; }
        .article-content h3 { font-size: 21px; }
        .article-content p { margin-bottom: 20px; }
        .article-content ul, .article-content ol { margin-bottom: 20px; padding-left: 24px; }
        .article-content li { margin-bottom: 8px; }
        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: var(--bg-light);
            padding: 18px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-content a { color: var(--secondary); text-decoration: underline; }
        .article-content a:hover { color: var(--primary); }
        .article-content img { border-radius: var(--radius); margin: 24px 0; box-shadow: var(--shadow); }
        .article-content .tag-label {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(232,73,29,0.08);
            color: var(--secondary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-right: 8px;
            margin-bottom: 8px;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found .icon-big { font-size: 64px; color: var(--text-muted); margin-bottom: 20px; }
        .article-not-found h3 { font-size: 24px; color: var(--primary); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-back { padding: 12px 32px; border-radius: 50px; font-weight: 600; }

        /* ===== 文章底部 ===== */
        .article-footer-nav {
            border-top: 1px solid var(--border-color);
            margin-top: 48px;
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .article-footer-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 50px;
            background: var(--bg-light);
            transition: var(--transition);
        }
        .article-footer-nav a:hover { background: var(--primary); color: #fff; transform: translateX(4px); }

        /* ===== CTA 区域 ===== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary) 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .article-cta::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .article-cta .container { position: relative; z-index: 2; }
        .article-cta h2 { color: #fff; font-size: 30px; font-weight: 700; margin-bottom: 14px; }
        .article-cta p { color: rgba(255,255,255,0.8); font-size: 17px; max-width: 640px; margin: 0 auto 28px; }
        .article-cta .btn-cta {
            padding: 14px 40px;
            font-size: 17px;
            font-weight: 600;
            border-radius: 50px;
            background: var(--secondary);
            color: #fff;
            border: none;
            transition: var(--transition);
            display: inline-block;
        }
        .article-cta .btn-cta:hover { background: var(--secondary-light); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(232,73,29,0.35); }
        .article-cta .btn-cta:focus-visible { outline: 2px solid #fff; outline-offset: 4px; }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 52px 0 28px;
            font-size: 15px;
        }
        .footer .footer-brand {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer .footer-brand i { color: var(--secondary); }
        .footer p { line-height: 1.7; max-width: 420px; }
        .footer .footer-links { display: flex; flex-direction: column; gap: 8px; }
        .footer .footer-links a { color: rgba(255,255,255,0.65); transition: var(--transition); font-weight: 400; }
        .footer .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
        .footer .footer-divider { border-color: rgba(255,255,255,0.1); margin: 28px 0 18px; }
        .footer .copyright { text-align: center; font-size: 14px; color: rgba(255,255,255,0.45); letter-spacing: 0.3px; }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .navbar-custom { padding: 14px 24px; }
            .article-hero h1 { font-size: 30px; }
            .article-content { font-size: 16px; }
        }
        @media (max-width: 768px) {
            .nav-toggle { display: block; }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow);
                gap: 4px;
            }
            .nav-links.open { display: flex; }
            .nav-links a { padding: 12px 16px; border-radius: 8px; width: 100%; }
            .nav-links a.active { background: rgba(232,73,29,0.08); }
            .article-hero { padding: 40px 0 36px; min-height: 200px; }
            .article-hero h1 { font-size: 24px; }
            .article-hero .meta-line { gap: 12px; font-size: 13px; flex-direction: column; }
            .article-main { padding: 30px 0 50px; }
            .article-content { font-size: 15px; }
            .article-content h2 { font-size: 22px; }
            .article-content h3 { font-size: 18px; }
            .article-cta { padding: 40px 0; }
            .article-cta h2 { font-size: 24px; }
            .article-footer-nav { flex-direction: column; align-items: stretch; }
            .article-footer-nav a { justify-content: center; }
            .footer { padding: 36px 0 20px; }
            .footer p { max-width: 100%; }
            .footer .footer-links { gap: 6px; }
        }
        @media (max-width: 520px) {
            .navbar-custom { padding: 10px 16px; }
            .navbar-custom .nav-logo { font-size: 18px; }
            .navbar-custom .nav-logo i { font-size: 20px; }
            .article-hero h1 { font-size: 20px; }
            .article-hero .meta-line { font-size: 12px; }
            .breadcrumb-wrap .breadcrumb { font-size: 12px; flex-wrap: wrap; }
            .article-content { font-size: 14px; }
            .article-cta h2 { font-size: 20px; }
            .article-cta .btn-cta { padding: 12px 28px; font-size: 15px; width: 100%; }
            .footer .copyright { font-size: 12px; }
        }

        /* ===== 辅助 ===== */
        .text-secondary-custom { color: var(--secondary); }
        .bg-soft { background: var(--bg-light); }
        .mt-section { margin-top: 60px; }
        .mb-section { margin-bottom: 60px; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f1b3d;
            --primary-light: #1a2d5e;
            --primary-dark: #0a1229;
            --accent: #d4a843;
            --accent-light: #e8c56e;
            --accent-dark: #b8922e;
            --bg-light: #f8faff;
            --bg-white: #ffffff;
            --bg-dark: #0f1b3d;
            --text-dark: #1a1f36;
            --text-body: #2d3456;
            --text-light: #6b7294;
            --text-white: #f0f4ff;
            --border-light: #e2e8f0;
            --border-accent: #d4a843;
            --shadow-sm: 0 2px 12px rgba(15, 27, 61, 0.06);
            --shadow-md: 0 8px 32px rgba(15, 27, 61, 0.10);
            --shadow-lg: 0 20px 60px rgba(15, 27, 61, 0.14);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-white);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 ===== */
        .navbar-custom {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            transition: var(--transition);
            box-shadow: 0 1px 0 rgba(15, 27, 61, 0.04);
        }

        .navbar-custom.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: -0.3px;
            transition: var(--transition);
        }
        .nav-logo i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .nav-logo:hover {
            color: var(--accent) !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.2px;
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: transform 0.3s ease;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(15, 27, 61, 0.04);
        }
        .nav-links a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-links a.active::after {
            transform: translateX(-50%) scaleX(1);
            background: var(--accent);
        }

        /* ===== 响应式导航 ===== */
        @media (max-width: 768px) {
            .navbar-custom {
                padding: 0 20px;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links {
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                -webkit-backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 12px 20px 20px;
                gap: 2px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.35s ease;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links a {
                width: 100%;
                justify-content: center;
                padding: 12px 16px;
                font-size: 1.05rem;
            }
            .nav-links a::after {
                bottom: 2px;
                width: 40%;
            }
        }

        @media (max-width: 520px) {
            .navbar-custom {
                padding: 0 16px;
            }
            .nav-logo {
                font-size: 1.2rem;
                gap: 8px;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== Hero ===== */
        .hero-category {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-category-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            mix-blend-mode: overlay;
        }
        .hero-category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 27, 61, 0.92) 0%, rgba(26, 45, 94, 0.78) 100%);
        }
        .hero-category .container {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .hero-category h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 20px;
            max-width: 720px;
        }
        .hero-category h1 span {
            color: var(--accent);
        }
        .hero-category .lead {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-category .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--accent);
            color: var(--primary-dark) !important;
            border: none;
            border-radius: 60px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(212, 168, 67, 0.35);
        }
        .hero-category .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(212, 168, 67, 0.45);
        }
        .hero-category .btn-cta:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 4px;
        }
        .hero-category .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px;
        }
        .hero-category .hero-badges span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            border-radius: 60px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .hero-category .hero-badges span i {
            color: var(--accent);
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .hero-category {
                min-height: 420px;
                padding: 40px 0;
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
            .hero-category .lead {
                font-size: 1.05rem;
            }
            .hero-category .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-category .lead {
                font-size: 0.95rem;
            }
            .hero-category .hero-badges span {
                font-size: 0.78rem;
                padding: 4px 14px;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.7;
        }
        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 1.5rem;
            }
        }

        /* ===== 核心优势卡片 ===== */
        .advantage-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px 28px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }
        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .advantage-card .icon-wrap {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.12), rgba(212, 168, 67, 0.04));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .advantage-card:hover .icon-wrap {
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.20), rgba(212, 168, 67, 0.08));
            transform: scale(1.05);
        }
        .advantage-card h5 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .advantage-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .advantage-card .card-img-top {
            border-radius: var(--radius-sm);
            margin-bottom: 18px;
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: var(--bg-light);
        }

        /* ===== 适用场景 ===== */
        .scene-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            height: 100%;
        }
        .scene-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .scene-card .scene-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--bg-light);
        }
        .scene-card .scene-body {
            padding: 22px 20px 24px;
        }
        .scene-card .scene-body h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .scene-card .scene-body p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            margin-bottom: 32px;
            padding: 20px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            transition: var(--transition);
        }
        .step-item:hover .step-number {
            background: var(--accent);
            color: var(--primary-dark);
        }
        .step-content h5 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 520px) {
            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 18px;
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-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;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }

        @media (max-width: 768px) {
            .stat-item .stat-number {
                font-size: 2.2rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 18px 24px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: var(--transition);
        }
        .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"]::after {
            transform: rotate(180deg);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.8;
        }

        @media (max-width: 520px) {
            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px 14px;
                font-size: 0.88rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.06;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 38px;
            font-size: 1.05rem;
            font-weight: 600;
            background: var(--accent);
            color: var(--primary-dark) !important;
            border: none;
            border-radius: 60px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(212, 168, 67, 0.35);
        }
        .btn-cta-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(212, 168, 67, 0.50);
        }
        .btn-cta-primary:focus-visible {
            outline: 2px solid var(--accent-light);
            outline-offset: 4px;
        }
        .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 38px;
            font-size: 1.05rem;
            font-weight: 500;
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: 60px;
            transition: var(--transition);
        }
        .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-2px);
        }
        .cta-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .btn-cta-primary,
            .btn-cta-secondary {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 32px;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer .footer-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .footer p {
            margin-bottom: 0;
            color: rgba(255, 255, 255, 0.6);
            max-width: 420px;
        }
        .footer h6 {
            color: #fff;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 1rem;
        }
        .footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer .footer-divider {
            margin: 32px 0 20px;
            border-color: rgba(255, 255, 255, 0.08);
        }
        .footer .copyright {
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        @media (max-width: 768px) {
            .footer {
                padding: 40px 0 24px;
            }
            .footer .footer-brand {
                font-size: 1.2rem;
            }
        }

        /* ===== 工具类 ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-soft-accent {
            background: rgba(212, 168, 67, 0.06);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }

        /* ===== 滚动淡入动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-padding {
                padding: 44px 0;
            }
            .hero-category h1 {
                font-size: 1.6rem;
            }
            .hero-category .lead {
                font-size: 0.9rem;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
        }