/* roulang page: index */
:root {
    --primary: #2d6fb6;
    --primary-dark: #1f5389;
    --primary-light: #e8f1fa;
    --accent: #e8a832;
    --accent-hover: #f0b84e;
    --bg: #f7fafc;
    --bg-alt: #eef4f9;
    --card: #ffffff;
    --text: #17233d;
    --text-body: #3d4a5c;
    --text-muted: #7a8699;
    --border: #e4eaf2;
    --radius: 12px;
    --shadow: 0 4px 16px rgba(23, 35, 61, 0.06);
    --shadow-hover: 0 8px 24px rgba(23, 35, 61, 0.10);
    --transition: all 0.3s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg); color: var(--text-body); line-height: 1.8; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 32px; color: var(--text); font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-muted); max-width: 640px; margin: 0 auto; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 28px; border-radius: 8px; font-size: 15px; font-weight: 600; border: none; transition: var(--transition); text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(45, 111, 182, 0.25); }
.btn-outline { background: #fff; color: var(--primary); border: 2px solid var(--primary); height: 40px; }
.btn-outline:hover { background: var(--primary-light); color: var(--primary-dark); border-color: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #17233d; }
.btn-accent:hover { background: var(--accent-hover); color: #17233d; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232, 168, 50, 0.3); }
.btn-lg { height: 52px; padding: 0 40px; font-size: 17px; }
.badge { display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 13px; font-weight: 600; background: var(--primary-light); color: var(--primary); }
.badge-accent { background: var(--accent); color: #fff; }

.site-header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 12px rgba(23, 35, 61, 0.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--text); }
.logo i { color: var(--primary); font-size: 24px; }
.logo:hover { color: var(--text); }
.nav-menu { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-menu li a { display: inline-block; padding: 10px 16px; font-size: 15px; font-weight: 500; color: var(--text-body); border-radius: 6px; }
.nav-menu li a:hover { color: var(--primary); background: var(--primary-light); }
.nav-menu li a.active { color: var(--primary); border-bottom: 2px solid var(--primary); border-radius: 0; }
.nav-cta { margin-left: 12px; }
.hamburger { display: none; background: none; border: none; font-size: 24px; color: var(--text); width: 44px; height: 44px; border-radius: 8px; align-items: center; justify-content: center; }
.hamburger:hover { background: var(--bg-alt); }
@media (max-width: 1024px) {
    .nav-menu { display: none; position: absolute; top: 68px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 16px 24px; flex-direction: column; align-items: flex-start; gap: 4px; box-shadow: 0 8px 24px rgba(23, 35, 61, 0.08); }
    .nav-menu.open { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-menu li a { display: block; width: 100%; padding: 12px 16px; }
    .nav-menu li a.active { border-bottom: none; border-left: 3px solid var(--primary); border-radius: 0 6px 6px 0; background: var(--primary-light); }
    .nav-cta { display: none; }
    .hamburger { display: inline-flex; }
}

.hero { position: relative; background: linear-gradient(135deg, rgba(23, 35, 61, 0.72), rgba(45, 111, 182, 0.55)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat; min-height: 560px; display: flex; align-items: center; text-align: center; overflow: hidden; }
.hero-content { max-width: 800px; margin: 0 auto; padding: 80px 24px; color: #fff; position: relative; z-index: 2; }
.hero-title { font-size: 46px; font-weight: 700; line-height: 1.2; color: #fff; margin-bottom: 20px; letter-spacing: 1px; }
.hero-sub { font-size: 18px; line-height: 1.7; color: rgba(255, 255, 255, 0.92); margin-bottom: 32px; max-width: 620px; margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-trust { margin-top: 48px; display: flex; gap: 32px; justify-content: center; flex-wrap: wrap; font-size: 14px; color: rgba(255, 255, 255, 0.72); }
@media (max-width: 768px) {
    .hero-title { font-size: 32px; }
    .hero-sub { font-size: 16px; }
    .hero { min-height: 480px; }
}

.quick-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 32px 0; }
.quick-list { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.quick-item { text-align: center; flex: 1; min-width: 160px; padding: 8px 16px; border-right: 1px solid var(--border); }
.quick-item:last-child { border-right: none; }
.quick-num { font-size: 32px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.quick-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }
@media (max-width: 768px) {
    .quick-list { flex-direction: column; gap: 16px; }
    .quick-item { border-right: none; border-bottom: 1px solid var(--border); padding: 12px 0; }
    .quick-item:last-child { border-bottom: none; }
}

.rights-section { background: var(--bg); }
.table-scroll { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); background: #fff; }
.table-scroll::-webkit-scrollbar { height: 6px; }
.table-scroll::-webkit-scrollbar-track { background: #f0f3f7; }
.table-scroll::-webkit-scrollbar-thumb { background: #c5d0dc; border-radius: 4px; }
.rights-table { width: 100%; min-width: 720px; border-collapse: collapse; }
.rights-table thead th { background: #1d2a3a; color: #fff; padding: 18px 20px; font-size: 15px; font-weight: 600; text-align: center; border: none; }
.rights-table tbody th { background: var(--bg-alt); color: var(--text); padding: 18px 20px; font-size: 14px; font-weight: 600; text-align: left; width: 150px; }
.rights-table tbody td { padding: 18px 20px; text-align: center; font-size: 14px; color: var(--text-body); border-bottom: 1px solid var(--border); }
.rights-table tbody tr:last-child td { border-bottom: none; }
.rights-table .col-recommend { background: var(--primary-light); }
.rights-table .recommend-badge { background: var(--accent); color: #fff; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 12px; margin-left: 6px; vertical-align: middle; }
.rights-cta { text-align: center; margin-top: 32px; }

.highlights-section { background: var(--bg-alt); }
.highlight-list { max-width: 900px; margin: 0 auto; }
.highlight-item { display: flex; gap: 28px; padding: 36px 0; border-bottom: 1px solid var(--border); }
.highlight-item:last-child { border-bottom: none; }
.highlight-num { flex-shrink: 0; width: 56px; height: 56px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; }
.highlight-content { flex: 1; }
.highlight-content h3 { font-size: 22px; color: var(--text); margin-bottom: 12px; font-weight: 600; }
.highlight-content p { color: var(--text-muted); margin-bottom: 12px; font-size: 15px; }
.highlight-points { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 12px; }
.highlight-points li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-body); background: #fff; padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border); }
.highlight-points li i { color: var(--primary); font-size: 14px; }
@media (max-width: 768px) {
    .highlight-item { flex-direction: column; gap: 16px; }
    .highlight-num { width: 44px; height: 44px; font-size: 18px; }
    .highlight-points li { width: 100%; }
}

.preview-section { background: var(--bg); overflow: hidden; }
.card-scroll { display: flex; gap: 24px; overflow-x: auto; padding-bottom: 16px; scroll-snap-type: x mandatory; }
.card-scroll::-webkit-scrollbar { height: 6px; }
.card-scroll::-webkit-scrollbar-track { background: #f0f3f7; }
.card-scroll::-webkit-scrollbar-thumb { background: #c5d0dc; border-radius: 4px; }
.preview-card { flex: 0 0 320px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: var(--transition); scroll-snap-align: start; }
.preview-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.preview-card .card-img { overflow: hidden; }
.preview-card .card-img img { width: 100%; height: 200px; object-fit: cover; transition: transform 0.4s ease; }
.preview-card:hover .card-img img { transform: scale(1.03); }
.preview-card .card-body { padding: 20px 24px; }
.preview-card .card-cat { font-size: 12px; color: var(--primary); font-weight: 600; text-transform: uppercase; }
.preview-card .card-title { font-size: 18px; font-weight: 600; color: var(--text); margin: 8px 0; line-height: 1.4; }
.preview-card .card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 12px; }
.preview-card .card-link { font-size: 14px; font-weight: 600; color: var(--primary); }

.news-section { background: var(--bg); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card { display: flex; gap: 20px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; transition: var(--transition); align-items: flex-start; }
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-thumb { flex-shrink: 0; width: 160px; height: 100px; border-radius: 8px; overflow: hidden; background: var(--bg-alt); display: flex; align-items: center; justify-content: center; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-main { flex: 1; }
.news-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
.news-meta .cat { color: var(--primary); font-weight: 600; }
.news-main h3 { font-size: 17px; font-weight: 600; color: var(--text); margin-bottom: 6px; line-height: 1.5; }
.news-main p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
.news-link { display: inline-block; margin-top: 8px; font-size: 14px; font-weight: 600; color: var(--primary); }
.news-empty { background: var(--bg-alt); border: 1px dashed var(--border); border-radius: var(--radius); padding: 48px; text-align: center; color: var(--text-muted); font-size: 15px; }
.news-empty i { font-size: 36px; display: block; margin-bottom: 12px; color: #ccd4dd; }
@media (max-width: 768px) {
    .news-card { flex-direction: column; }
    .news-thumb { width: 100%; height: 160px; }
}

.faq-section { background: var(--bg); }
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: var(--transition); }
.faq-item.active { background: var(--bg-alt); border-color: var(--primary); }
.faq-question { display: flex; align-items: center; justify-content: space-between; padding: 18px 24px; font-size: 15px; font-weight: 600; color: var(--text); cursor: pointer; user-select: none; }
.faq-question i { color: var(--primary); transition: transform 0.3s ease; font-size: 18px; }
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.active .faq-answer { max-height: 200px; }
.faq-answer p { padding: 0 24px 20px; font-size: 14px; color: var(--text-body); line-height: 1.7; }

.cta-section { position: relative; background: linear-gradient(135deg, rgba(29, 42, 58, 0.88), rgba(45, 111, 182, 0.72)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat; padding: 96px 0; text-align: center; }
.cta-content { max-width: 640px; margin: 0 auto; padding: 0 24px; }
.cta-content h2 { font-size: 34px; color: #fff; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.cta-content p { font-size: 16px; color: rgba(255, 255, 255, 0.85); margin-bottom: 32px; }
@media (max-width: 768px) {
    .cta-content h2 { font-size: 26px; }
}

.site-footer { background: #1d2a3a; color: #a0aec0; padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.footer-brand { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-brand i { color: var(--accent); margin-right: 6px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: #8896a8; max-width: 280px; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: #8896a8; font-size: 14px; transition: var(--transition); }
.footer-col ul li a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { font-size: 14px; margin-bottom: 8px; color: #8896a8; }
.footer-contact i { margin-right: 8px; color: var(--accent); }
.copyright { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 20px 0; text-align: center; font-size: 13px; color: #66788f; }
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .section { padding: 48px 0; }
    .section-head h2 { font-size: 26px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #2E6EB8;
            --primary-dark: #1E4E79;
            --primary-light: #EBF4FC;
            --primary-light-2: #F0F7FE;
            --accent: #E8A53D;
            --accent-dark: #C8842A;
            --accent-light: #FDF3E3;
            --bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --text: #17233D;
            --text-body: #3D4A5C;
            --text-muted: #7A8699;
            --border: #E4EAF2;
            --success: #2E9E6B;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 16px rgba(23, 35, 61, 0.06);
            --shadow-hover: 0 8px 24px rgba(23, 35, 61, 0.10);
            --gap: 24px;
            --transition: 0.3s 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: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background-color: var(--bg);
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            color: var(--text);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ========== 容器 ========== */
        .grid-container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (max-width: 640px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            gap: 8px;
        }

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

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

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(200, 132, 42, 0.25);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

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

        .btn-white:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-light);
        }

        .btn-lg {
            height: 52px;
            padding: 0 36px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-sm {
            height: 38px;
            padding: 0 20px;
            font-size: 14px;
        }

        /* ========== 全局导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 8px rgba(23, 35, 61, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
        }

        .logo i {
            color: var(--primary);
            font-size: 26px;
        }

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

        .site-header nav {
            display: flex;
            align-items: center;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }

        .nav-menu > li {
            margin: 0;
        }

        .nav-menu > li > a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition);
        }

        .nav-menu > li > a::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform var(--transition);
        }

        .nav-menu > li > a:hover,
        .nav-menu > li > a.active {
            color: var(--primary);
        }

        .nav-menu > li > a.active::after {
            transform: scaleX(1);
        }

        .nav-menu > li.nav-cta {
            margin-left: 12px;
        }

        .nav-menu > li.nav-cta a::after {
            display: none;
        }

        .nav-menu > li.nav-cta .btn {
            padding: 0 22px;
            height: 40px;
            font-size: 14px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .menu-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            background: var(--bg);
            padding: 24px 0 0;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }

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

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

        .breadcrumb .sep {
            color: #C0C9D6;
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ========== 页面 Hero ========== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 70px 0 64px;
            color: #fff;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(23, 35, 61, 0.85) 0%, rgba(46, 110, 184, 0.75) 100%);
        }

        .page-hero .grid-container {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            color: #fff;
            font-size: 44px;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-hero .hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            max-width: 680px;
            margin-bottom: 0;
        }

        .page-hero .hero-meta {
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .page-hero .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .page-hero .hero-meta i {
            font-size: 16px;
            color: var(--accent);
        }

        /* ========== 通用区块标题 ========== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--primary-light-2);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: 32px;
            margin-bottom: 12px;
        }

        .section-header p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            font-size: 15px;
        }

        .section-header .sub-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ========== 会员体系简介 ========== */
        .intro-section {
            padding: 80px 0;
        }

        .intro-text h2 {
            font-size: 30px;
            margin-bottom: 18px;
        }

        .intro-text .lead {
            font-size: 16px;
            color: var(--text-body);
            margin-bottom: 16px;
        }

        .intro-features {
            margin-top: 28px;
        }

        .intro-features li {
            display: flex;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 15px;
            align-items: flex-start;
        }

        .intro-features li i {
            color: var(--success);
            margin-top: 5px;
            font-size: 14px;
            flex-shrink: 0;
        }

        .intro-card-wrap {
            position: relative;
        }

        .intro-card {
            background: var(--card-bg);
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 24px;
            position: relative;
            z-index: 1;
            border: 1px solid var(--border);
        }

        .intro-card .card-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .intro-card .card-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

        .intro-card .card-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .intro-card .card-list li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            padding: 6px 0;
            color: var(--text-body);
        }

        .intro-card .card-list li i {
            color: var(--primary);
            font-size: 12px;
            width: 18px;
            text-align: center;
        }

        .intro-card img {
            border-radius: 12px;
            margin-bottom: 16px;
            width: 100%;
            object-fit: cover;
            height: 220px;
        }

        /* ========== 等级详情阶梯区 ========== */
        .level-steps-wrap {
            padding: 80px 0;
        }

        .level-step {
            display: flex;
            gap: 28px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 36px;
            margin-bottom: 20px;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
        }

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

        .level-step:nth-child(2) {
            margin-left: 4%;
        }

        .level-step:nth-child(3) {
            margin-left: 8%;
        }

        .level-step .step-num {
            flex-shrink: 0;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
        }

        .level-step:nth-child(2) .step-num {
            background: var(--accent-light);
            color: var(--accent-dark);
        }

        .level-step:nth-child(3) .step-num {
            background: #E8EFF7;
            color: var(--primary-dark);
        }

        .level-step .step-content {
            flex: 1;
        }

        .level-step .step-content h3 {
            font-size: 21px;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .level-step .step-content .step-desc {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .level-step .step-content .step-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 8px 20px;
        }

        .level-step .step-content .step-list li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-body);
        }

        .level-step .step-content .step-list li i {
            color: var(--success);
            font-size: 13px;
        }

        /* ========== 权益对比表 ========== */
        .table-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .table-scroll {
            overflow-x: auto;
            position: relative;
            border-radius: 16px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            -webkit-overflow-scrolling: touch;
            background: var(--card-bg);
        }

        .rights-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 680px;
            background: var(--card-bg);
        }

        .rights-table thead th {
            background: var(--text);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 16px 20px;
            text-align: center;
            border-bottom: none;
            white-space: nowrap;
        }

        .rights-table thead th:first-child {
            text-align: left;
            border-radius: 0;
        }

        .rights-table thead th.recommended {
            background: var(--primary);
            position: relative;
        }

        .rights-table thead th .badge-recommend {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 12px;
            margin-left: 6px;
            vertical-align: middle;
        }

        .rights-table tbody td {
            padding: 16px 20px;
            text-align: center;
            font-size: 14px;
            color: var(--text-body);
            border-bottom: 1px solid var(--border);
            height: 56px;
            vertical-align: middle;
        }

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

        .rights-table tbody td:first-child {
            text-align: left;
            font-weight: 500;
            color: var(--text);
        }

        .rights-table tbody td.recommended {
            background: var(--primary-light-2);
        }

        .rights-table tbody tr:hover td {
            background: #F8FBFF;
        }

        .rights-table tbody tr:hover td.recommended {
            background: var(--primary-light);
        }

        .check-yes {
            color: var(--success);
            font-size: 16px;
        }

        .check-no {
            color: #C6CEDC;
            font-size: 16px;
        }

        .table-cta {
            text-align: center;
            margin-top: 32px;
        }

        /* ========== 开通流程 ========== */
        .process-section {
            padding: 80px 0;
            background: var(--primary-light-2);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .process-card {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            position: relative;
        }

        .process-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .process-card .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }

        .process-card .process-icon {
            font-size: 36px;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .process-card h3 {
            font-size: 17px;
            margin-bottom: 10px;
        }

        .process-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item.active {
            background: var(--primary-light-2);
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            transition: color var(--transition);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all var(--transition);
        }

        .faq-item.active .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px 0 72px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 20px;
        }

        /* ========== CTA 横幅 ========== */
        .cta-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 90px 0;
            text-align: center;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 35, 61, 0.88) 0%, rgba(30, 78, 121, 0.85) 100%);
        }

        .cta-banner .grid-container {
            position: relative;
            z-index: 1;
        }

        .cta-banner h2 {
            color: #fff;
            font-size: 34px;
            margin-bottom: 14px;
            font-weight: 800;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, 0.88);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

        .cta-banner .btn {
            min-width: 180px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1D2A3A;
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand i {
            color: var(--accent);
            font-size: 24px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--transition);
        }

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

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-contact p i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .site-header nav {
                display: none;
            }

            .site-header nav.open {
                display: block;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(23, 35, 61, 0.10);
                padding: 12px 20px;
            }

            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .nav-menu > li > a {
                display: block;
                padding: 14px 16px;
                border-radius: var(--radius-sm);
            }

            .nav-menu > li > a::after {
                display: none;
            }

            .nav-menu > li > a.active {
                background: var(--primary-light);
            }

            .nav-menu > li.nav-cta {
                margin: 12px 0 4px;
                padding-top: 12px;
                border-top: 1px solid var(--border);
            }

            .nav-menu > li.nav-cta .btn {
                width: 100%;
                height: 44px;
            }

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

            .page-hero {
                padding: 48px 0;
                background-attachment: scroll;
            }

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

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .section,
            .intro-section,
            .level-steps-wrap,
            .table-section,
            .process-section,
            .faq-section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 25px;
            }

            .level-step {
                flex-direction: column;
                gap: 16px;
                padding: 24px;
            }

            .level-step:nth-child(2),
            .level-step:nth-child(3) {
                margin-left: 0;
            }

            .level-step .step-content .step-list {
                grid-template-columns: 1fr;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-banner {
                padding: 64px 0;
            }

            .cta-banner h2 {
                font-size: 26px;
            }

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

            .footer-contact p {
                font-size: 13px;
            }
        }

        @media (max-width: 576px) {
            .page-hero h1 {
                font-size: 26px;
            }

            .intro-card {
                padding: 18px;
            }

            .table-scroll {
                margin: 0 -16px;
                border-radius: 0;
                border-left: none;
                border-right: none;
            }

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

            .faq-answer {
                padding: 0 16px 0 56px;
            }

            .faq-item.active .faq-answer {
                padding-bottom: 16px;
            }

            .btn-lg {
                height: 46px;
                padding: 0 26px;
                font-size: 15px;
            }

            .cta-banner .btn {
                min-width: 150px;
            }
        }

        /* ========== 通用动画 ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .level-step,
        .process-card {
            animation: fadeInUp 0.6s ease both;
        }

/* roulang page: article */
:root {
            --primary: #2E6BD6;
            --primary-dark: #1F4FA6;
            --primary-light: #E8F0FE;
            --accent: #E8A33D;
            --accent-hover: #F0B554;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --title: #17233D;
            --text: #3D4A5C;
            --muted: #7A8699;
            --border: #E4EAF2;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 16px rgba(23, 35, 61, 0.06);
            --shadow-hover: 0 8px 24px rgba(23, 35, 61, 0.10);
            --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s, background .2s, box-shadow .2s, transform .2s;
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ==== 按钮 ==== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            border: 2px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            text-align: center;
            line-height: 1;
            white-space: nowrap;
        }
        .btn i {
            margin-right: 6px;
            font-size: 14px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(46, 107, 214, 0.25);
        }
        .btn-accent {
            background: var(--accent);
            color: #17233D;
            border-color: var(--accent);
        }
        .btn-accent:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #17233D;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(232, 163, 61, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-large {
            height: 52px;
            padding: 0 40px;
            font-size: 17px;
            border-radius: 10px;
        }
        /* ==== 全局导航 ==== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 8px rgba(23, 35, 61, 0.04);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            flex-shrink: 0;
        }
        .logo i {
            color: var(--primary);
            font-size: 24px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 0;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--title);
            margin: 4px 0;
            border-radius: 2px;
            transition: background .2s;
        }
        .nav-toggle:hover span {
            background: var(--primary);
        }
        .site-nav {
            display: flex;
        }
        .nav-menu {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            display: block;
            padding: 10px 16px;
            font-weight: 500;
            color: var(--text);
            border-radius: 8px;
            position: relative;
        }
        .nav-menu a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-menu a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 3px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-menu .nav-cta {
            margin-left: 8px;
        }
        .nav-menu .nav-cta a {
            padding: 0;
            background: none;
        }
        .nav-menu .nav-cta a::after {
            display: none;
        }
        .nav-menu .nav-cta a.btn-accent {
            height: 40px;
            padding: 0 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }
        .nav-menu .nav-cta a.btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 14px rgba(232, 163, 61, 0.3);
        }
        /* ==== 面包屑 ==== */
        .breadcrumb-bar {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
            font-size: 14px;
            color: var(--muted);
        }
        .breadcrumb a {
            color: var(--muted);
            padding: 2px 4px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: #C2CBD8;
            margin: 0 2px;
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 280px;
            display: inline-block;
        }
        /* ==== 文章主体 ==== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px;
        }
        .article-header {
            text-align: center;
            padding-bottom: 32px;
            margin-bottom: 32px;
            border-bottom: 1px solid var(--border);
        }
        .article-header h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--title);
            margin: 0 0 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 24px;
            font-size: 14px;
            color: var(--muted);
        }
        .article-meta i {
            color: var(--primary);
            margin-right: 6px;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text);
            max-width: 720px;
            margin: 0 auto;
        }
        .article-content p {
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--title);
            margin: 40px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-light);
        }
        .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--title);
            margin: 32px 0 12px;
        }
        .article-content h4 {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            margin: 24px 0 8px;
        }
        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(46, 107, 214, 0.3);
        }
        .article-content ul,
        .article-content ol {
            margin: 0 0 24px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--title);
        }
        .article-content img {
            border-radius: 8px;
            margin: 24px 0;
        }
        .article-content hr {
            border: 0;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }
        .article-content table th,
        .article-content table td {
            border: 1px solid var(--border);
            padding: 12px 16px;
            text-align: left;
        }
        .article-content table th {
            background: var(--primary-light);
            font-weight: 600;
            color: var(--title);
        }
        .article-content pre {
            background: #1D2A3A;
            color: #E6EDF3;
            padding: 20px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.6;
        }
        .article-content code {
            background: var(--primary-light);
            color: var(--primary-dark);
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 14px;
        }
        .article-content pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }
        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }
        .article-empty i {
            font-size: 48px;
            color: var(--muted);
            opacity: .4;
            margin-bottom: 16px;
        }
        .article-empty p {
            font-size: 18px;
            color: var(--muted);
            margin-bottom: 20px;
        }
        .article-return {
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        /* ==== 相关推荐 ==== */
        .related-section {
            background: #F1F6FC;
            padding: 56px 0 64px;
        }
        .section-head {
            margin-bottom: 36px;
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: 1px;
            text-transform: uppercase;
            background: var(--primary-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .section-head p {
            color: var(--muted);
            font-size: 15px;
        }
        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform .3s, box-shadow .3s;
            height: 100%;
            display: flex;
            flex-direction: column;
            color: inherit;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            color: inherit;
        }
        .related-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary-light);
        }
        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.03);
        }
        .related-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 2px 10px;
            border-radius: 20px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .related-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .related-body p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 12px;
            line-height: 1.6;
            flex: 1;
        }
        .related-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-link i {
            font-size: 12px;
            transition: transform .2s;
        }
        .related-card:hover .related-link i {
            transform: translateX(3px);
        }
        /* ==== CTA ==== */
        .article-cta {
            background: linear-gradient(to right, rgba(29, 42, 58, .92), rgba(46, 107, 214, .78)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            padding: 72px 24px;
            text-align: center;
            color: #fff;
        }
        .article-cta h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .article-cta p {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        /* ==== 页脚 ==== */
        .site-footer {
            background: #1D2A3A;
            color: rgba(255, 255, 255, .7);
            padding: 56px 0 0;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 18px;
        }
        .footer-desc {
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, .65);
        }
        .footer-col ul a:hover {
            color: #fff;
        }
        .footer-contact p {
            margin-bottom: 10px;
            color: rgba(255, 255, 255, .65);
        }
        .footer-contact i {
            color: var(--accent);
            margin-right: 8px;
            width: 18px;
            text-align: center;
        }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 20px 0;
            text-align: center;
            color: rgba(255, 255, 255, .5);
            font-size: 13px;
        }
        /* ==== 响应式 ==== */
        @media (max-width: 1024px) {
            .nav-menu a {
                padding: 10px 12px;
                font-size: 15px;
            }
            .article-header h1 {
                font-size: 32px;
            }
        }
        @media (max-width: 768px) {
            .nav-inner {
                height: 64px;
            }
            .nav-toggle {
                display: block;
            }
            .site-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 8px 24px rgba(23, 35, 61, .08);
                padding: 8px 16px 20px;
                display: none;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }
            .site-nav.open {
                display: block;
            }
            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-menu a {
                padding: 14px 16px;
                font-size: 16px;
            }
            .nav-menu a.active::after {
                display: none;
            }
            .nav-menu a.active {
                background: var(--primary-light);
            }
            .nav-menu .nav-cta {
                margin: 12px 0 0;
            }
            .nav-menu .nav-cta a.btn-accent {
                width: 100%;
                height: 48px;
            }
            .breadcrumb .current {
                max-width: 160px;
            }
            .article-main {
                padding: 32px 0 48px;
            }
            .article-card {
                padding: 32px 24px;
            }
            .article-header h1 {
                font-size: 26px;
            }
            .article-meta {
                gap: 4px 16px;
            }
            .article-return {
                flex-direction: column;
                align-items: center;
            }
            .article-return .btn {
                width: 100%;
                max-width: 280px;
            }
            .related-section {
                padding: 40px 0 48px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .article-cta {
                padding: 48px 20px;
            }
            .article-cta h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 19px;
            }
            .logo i {
                font-size: 21px;
            }
            .article-card {
                padding: 24px 18px;
                border-radius: 10px;
            }
            .article-header {
                padding-bottom: 24px;
                margin-bottom: 24px;
            }
            .article-header h1 {
                font-size: 22px;
                margin-bottom: 16px;
            }
            .article-meta {
                font-size: 13px;
                justify-content: flex-start;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 18px;
            }
            .article-content p {
                margin-bottom: 20px;
            }
            .article-cta h2 {
                font-size: 22px;
            }
            .article-cta p {
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2D5B8E;
            --primary-dark: #1E3E5F;
            --primary-light: #E8F0F8;
            --accent: #E8A13C;
            --accent-hover: #F0B355;
            --bg: #F7FAFC;
            --card-bg: #FFFFFF;
            --border: #E4EAF2;
            --text: #17233D;
            --text-body: #3D4A5C;
            --text-muted: #7A8699;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 4px 16px rgba(23, 35, 61, 0.06);
            --shadow-hover: 0 8px 24px rgba(23, 35, 61, 0.10);
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background: var(--bg);
            color: var(--text-body);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
        }

        p {
            margin: 0 0 16px;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        ul {
            margin: 0;
            padding: 0;
        }

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

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

        .container .row {
            max-width: 100%;
        }

        .row {
            margin-left: -12px;
            margin-right: -12px;
        }

        .columns {
            padding-left: 12px;
            padding-right: 12px;
        }

        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: #EEF4FA;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-head.left {
            text-align: left;
            margin: 0 0 36px;
        }

        .section-head h2 {
            font-size: 32px;
            letter-spacing: -0.02em;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 16px;
            margin-top: 10px;
            line-height: 1.7;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            z-index: 100;
            box-shadow: 0 2px 10px rgba(23, 35, 61, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            text-decoration: none;
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand i {
            color: var(--primary);
            font-size: 24px;
        }

        .brand span {
            color: var(--text);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
        }

        .nav-menu li {
            margin: 0;
        }

        .nav-menu a {
            color: var(--text-body);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            padding: 8px 2px;
            position: relative;
            transition: var(--transition);
            display: inline-block;
        }

        .nav-menu a:hover {
            color: var(--primary);
        }

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

        .nav-menu a.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-menu .nav-cta {
            margin-left: 8px;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 44px;
            height: 44px;
            font-size: 18px;
            color: var(--text);
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1;
        }

        .btn-primary {
            background: var(--primary);
            color: #FFFFFF;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #FFFFFF;
            box-shadow: 0 6px 18px rgba(45, 91, 142, 0.25);
            transform: translateY(-1px);
        }

        .btn-secondary {
            background: transparent;
            color: #FFFFFF;
            border-color: rgba(255, 255, 255, 0.6);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #FFFFFF;
        }

        .btn-accent {
            background: var(--accent);
            color: #1D2A3A;
            font-weight: 700;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #1D2A3A;
            box-shadow: 0 6px 18px rgba(232, 161, 60, 0.35);
            transform: translateY(-1px);
        }

        /* Page Hero */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
            min-height: 440px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(23, 35, 61, 0.82) 0%, rgba(23, 35, 61, 0.62) 100%);
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
        }

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

        .breadcrumb .divider {
            opacity: 0.5;
        }

        .breadcrumb .current {
            color: rgba(255, 255, 255, 0.95);
            font-weight: 500;
        }

        .page-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #FFFFFF;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(4px);
            margin-bottom: 18px;
            line-height: 1.4;
        }

        .page-hero h1 {
            color: #FFFFFF;
            font-size: 42px;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .page-hero .hero-desc {
            color: rgba(255, 255, 255, 0.88);
            font-size: 16px;
            line-height: 1.8;
            max-width: 660px;
            margin-bottom: 28px;
        }

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

        .hero-trust {
            margin-top: 32px;
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
        }

        .hero-trust i {
            color: var(--accent);
        }

        /* Content Type Cards */
        .type-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .type-cover {
            position: relative;
            height: 140px;
            overflow: hidden;
            background: var(--primary-light);
        }

        .type-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }

        .type-card:hover .type-cover img {
            transform: scale(1.03);
        }

        .type-num {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(23, 35, 61, 0.75);
            color: #FFFFFF;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 6px;
            backdrop-filter: blur(4px);
            line-height: 1.3;
        }

        .type-icon {
            position: absolute;
            right: 14px;
            bottom: -20px;
            width: 42px;
            height: 42px;
            background: var(--primary);
            color: #FFFFFF;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 3px solid #FFFFFF;
            font-size: 16px;
        }

        .type-card h3 {
            font-size: 19px;
            font-weight: 700;
            padding: 28px 24px 6px;
            margin: 0;
        }

        .type-card .type-desc {
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            flex-grow: 1;
        }

        .type-card .type-list {
            list-style: none;
            padding: 12px 24px 24px;
            margin: 0;
        }

        .type-card .type-list li {
            font-size: 13px;
            color: var(--text-body);
            padding: 3px 0;
            position: relative;
        }

        .type-card .type-list li i {
            color: var(--primary);
            margin-right: 8px;
            font-size: 12px;
        }

        /* Topic Cards */
        .topic-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 20px;
            text-align: center;
            text-decoration: none;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            height: 100%;
        }

        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            text-decoration: none;
        }

        .topic-card i {
            font-size: 32px;
            color: var(--primary);
            transition: var(--transition);
        }

        .topic-card:hover i {
            color: var(--accent);
        }

        .topic-card span {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }

        .topic-card em {
            font-style: normal;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Schedule */
        .schedule-list {
            position: relative;
            padding-left: 32px;
            border-left: 2px solid var(--border);
            margin-left: 8px;
        }

        .schedule-item {
            position: relative;
            padding: 0 0 36px 28px;
        }

        .schedule-item:last-child {
            padding-bottom: 0;
        }

        .schedule-item::before {
            content: '';
            position: absolute;
            left: -39px;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #FFFFFF;
            box-shadow: 0 0 0 2px var(--primary);
        }

        .schedule-item .s-time {
            font-size: 13px;
            color: var(--accent);
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .schedule-item h4 {
            font-size: 18px;
            font-weight: 700;
            margin: 4px 0 6px;
            color: var(--text);
        }

        .schedule-item p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
        }

        .scene-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px 28px;
            height: 100%;
        }

        .scene-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .scene-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .scene-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 14px 0;
            border-bottom: 1px solid var(--border);
        }

        .scene-list li:last-child {
            border-bottom: none;
        }

        .scene-list li i {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }

        .scene-list li div {
            flex: 1;
        }

        .scene-list li strong {
            display: block;
            font-size: 15px;
            color: var(--text);
            margin-bottom: 2px;
        }

        .scene-list li span {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Inline CTA */
        .cta-inline {
            padding: 56px 0;
        }

        .cta-box {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-box h2 {
            font-size: 24px;
            margin-bottom: 6px;
        }

        .cta-box p {
            color: var(--text-muted);
            margin: 0;
            font-size: 15px;
            max-width: 600px;
        }

        .cta-box .btn {
            flex-shrink: 0;
        }

        /* FAQ */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background 0.25s ease;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-item.active {
            background: #F4F8FC;
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }

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

        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--primary);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-body);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            padding: 0 24px 24px;
        }

        .faq-answer p {
            margin: 0;
        }

        /* CTA Band */
        .cta-band {
            position: relative;
            padding: 90px 0;
            background-size: cover;
            background-position: center;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(23, 35, 61, 0.85) 0%, rgba(30, 62, 95, 0.78) 100%);
        }

        .cta-band .container {
            position: relative;
            z-index: 2;
            text-align: center;
            color: #FFFFFF;
        }

        .cta-band h2 {
            color: #FFFFFF;
            font-size: 34px;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .cta-band p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 30px;
            line-height: 1.8;
        }

        .cta-band .btn-accent {
            font-size: 16px;
            height: 48px;
            padding: 0 36px;
        }

        /* Footer */
        .site-footer {
            background: #1D2A3A;
            color: #AEBACB;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 12px;
        }

        .footer-brand i {
            color: var(--accent);
            font-size: 22px;
        }

        .footer-desc {
            color: #8A98A9;
            font-size: 14px;
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }

        .footer-col h4 {
            color: #FFFFFF;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

        .footer-col ul li {
            padding: 4px 0;
        }

        .footer-col ul a {
            color: #8A98A9;
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #8A98A9;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .footer-contact p i {
            color: var(--accent);
            width: 18px;
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            color: #6C7A8B;
            font-size: 13px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .nav-menu {
                gap: 18px;
            }

            .nav-menu a {
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .page-hero {
                padding: 64px 0 56px;
                min-height: auto;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .page-hero .hero-desc {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .header-inner {
                height: 64px;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-menu {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 10px 28px rgba(23, 35, 61, 0.10);
                display: none;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }

            .nav-menu.open {
                display: flex;
            }

            .nav-menu li {
                border-bottom: 1px solid var(--border);
            }

            .nav-menu li:last-child {
                border-bottom: none;
            }

            .nav-menu a {
                display: block;
                padding: 14px 4px;
                font-size: 16px;
                width: 100%;
            }

            .nav-menu a.active::after {
                display: none;
            }

            .nav-menu a.active {
                border-left: 3px solid var(--primary);
                padding-left: 12px;
                border-radius: 0;
            }

            .nav-menu .nav-cta {
                padding: 14px 4px 4px;
                margin-left: 0;
                border-bottom: none;
            }

            .nav-menu .nav-cta .btn {
                width: 100%;
            }

            .cta-box {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-box .btn {
                width: 100%;
            }

            .cta-band {
                padding: 64px 0;
            }

            .cta-band h2 {
                font-size: 28px;
            }

            .topic-card {
                padding: 24px 16px;
            }

            .type-card h3 {
                padding: 24px 20px 4px;
            }

            .type-card .type-desc {
                padding: 0 20px;
            }

            .type-card .type-list {
                padding: 10px 20px 20px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 44px 0;
            }

            .page-hero {
                padding: 48px 0 40px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

            .brand {
                font-size: 19px;
            }

            .brand i {
                font-size: 20px;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
            }

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

            .brand span {
                font-size: 19px;
            }

            .schedule-list {
                padding-left: 24px;
            }

            .schedule-item {
                padding: 0 0 28px 20px;
            }

            .schedule-item::before {
                left: -31px;
                width: 10px;
                height: 10px;
            }

            .scroll-hint {
                display: block;
                text-align: center;
                color: var(--text-muted);
                font-size: 13px;
                margin-top: 16px;
            }
        }

        @media (max-width: 1024px) and (min-width: 769px) {
            .type-cover {
                height: 120px;
            }
        }

        .scroll-hint {
            display: none;
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #2E6DB4;
            --primary-dark: #1E4F86;
            --primary-light: #E8F0F9;
            --accent: #E8A33D;
            --accent-hover: #F0B654;
            --bg-main: #F7FAFC;
            --bg-alt: #EEF4F9;
            --card: #FFFFFF;
            --text-title: #17233D;
            --text-body: #3D4A5C;
            --text-muted: #7A8699;
            --border: #E4EAF2;
            --radius: 12px;
            --shadow: 0 4px 16px rgba(23, 35, 61, 0.06);
            --shadow-hover: 0 8px 24px rgba(23, 35, 61, 0.10);
            --transition: all .3s ease;
            --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            background: var(--bg-main);
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--primary-dark);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

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

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 8px rgba(23, 35, 61, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            box-shadow: 0 4px 10px rgba(46, 109, 180, 0.25);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .header-nav {
            display: flex;
            align-items: center;
        }

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

        .nav-menu>li>a {
            display: block;
            padding: 10px 16px;
            font-size: 15px;
            color: var(--text-body);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-menu>li>a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-menu>li>a.active {
            color: var(--primary);
            font-weight: 600;
            position: relative;
        }

        .nav-menu>li>a.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta a.btn {
            padding: 10px 22px;
            margin-left: 10px;
            font-weight: 600;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: #fff;
            color: var(--text-title);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1;
            text-align: center;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 20px rgba(46, 109, 180, 0.3);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: var(--accent);
            color: #17233D;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #17233D;
            box-shadow: 0 8px 20px rgba(232, 163, 61, 0.35);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border-color: var(--primary);
            height: 40px;
            padding: 0 24px;
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn-lg {
            height: 52px;
            padding: 0 38px;
            font-size: 16px;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            padding: 16px 0 0;
            background: var(--bg-main);
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

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

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

        .breadcrumb .sep {
            color: #C6CFDA;
        }

        .breadcrumb .current {
            color: var(--text-body);
            font-weight: 500;
        }

        /* ========== 页头 Banner ========== */
        .page-hero {
            position: relative;
            background: linear-gradient(120deg, rgba(23, 35, 61, 0.82), rgba(46, 109, 180, 0.55)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 80px 0;
            margin-bottom: 0;
        }

        .page-hero-content {
            max-width: 680px;
        }

        .hero-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 13px;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 20px;
            backdrop-filter: blur(4px);
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.92);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 600px;
        }

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

        .hero-actions .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }

        .hero-actions .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }

        /* ========== 板块通用 ========== */
        .section-steps,
        .section-open,
        .section-reading,
        .section-faq {
            padding: 80px 0;
        }

        .section-security,
        .section-tips {
            padding: 80px 0;
            background: var(--bg-alt);
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head.center {
            text-align: center;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 快速上手时间线 ========== */
        .steps-timeline {
            position: relative;
            max-width: 780px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .steps-timeline::before {
            content: '';
            position: absolute;
            left: 40px;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary-light), var(--primary), var(--primary-light));
            border-radius: 2px;
        }

        .step-item {
            display: flex;
            gap: 28px;
            position: relative;
            padding: 24px 0;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 20px;
            padding-right: 28px;
            transition: var(--transition);
        }

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

        .step-num {
            flex-shrink: 0;
            width: 80px;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding-top: 28px;
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.35;
            line-height: 1;
        }

        .step-content {
            padding-top: 26px;
            padding-right: 16px;
        }

        .step-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .step-content p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ========== 账号安全分栏 ========== */
        .split-layout {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }

        .split-text .section-tag {
            margin-bottom: 14px;
        }

        .split-text h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            margin-bottom: 20px;
        }

        .check-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 12px 0;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            border-bottom: 1px solid var(--border);
        }

        .check-list li:last-child {
            border-bottom: none;
        }

        .check-list i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 5px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .split-media {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .split-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .split-media::after {
            content: '';
            position: absolute;
            inset: 0;
            border: 1px solid rgba(46, 109, 180, 0.12);
            border-radius: var(--radius);
            pointer-events: none;
        }

        /* ========== 开通流程 ========== */
        .process-flow {
            display: flex;
            align-items: stretch;
            gap: 0;
            margin-bottom: 40px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 32px 24px;
        }

        .process-item {
            flex: 1;
            text-align: center;
            padding: 16px 12px;
            position: relative;
        }

        .process-order {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin: 0 auto 14px;
            box-shadow: 0 6px 16px rgba(46, 109, 180, 0.28);
        }

        .process-item:nth-child(3) .process-order {
            background: var(--primary-dark);
        }

        .process-item:nth-child(5) .process-order {
            background: var(--primary);
        }

        .process-item:nth-child(7) .process-order {
            background: var(--accent);
            color: var(--text-title);
        }

        .process-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .process-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            max-width: 180px;
            margin: 0 auto;
        }

        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            flex-shrink: 0;
            color: #C6CFDA;
            font-size: 18px;
        }

        /* ========== 权益对比表 ========== */
        .plan-compare-wrap {
            position: relative;
        }

        .plan-compare {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            overflow-x: auto;
        }

        .plan-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 620px;
        }

        .plan-table th,
        .plan-table td {
            padding: 16px 20px;
            text-align: center;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
        }

        .plan-table thead th {
            background: #17233D;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
        }

        .plan-table tbody tr:last-child th,
        .plan-table tbody tr:last-child td {
            border-bottom: none;
        }

        .plan-table tbody th {
            text-align: left;
            font-weight: 500;
            color: var(--text-body);
            background: var(--bg-main);
        }

        .plan-table .level-highlight {
            background: var(--primary-light);
            position: relative;
        }

        .plan-table thead .level-highlight {
            background: var(--primary-dark);
        }

        .recommend-badge {
            display: inline-block;
            background: var(--accent);
            color: #17233D;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 10px;
            border-radius: 20px;
            margin-left: 6px;
            vertical-align: 2px;
            white-space: nowrap;
        }

        .plan-table .check-mark {
            color: var(--primary);
            font-weight: 700;
        }

        .plan-table .dash-mark {
            color: #C6CFDA;
        }

        .plan-compare-tip {
            text-align: center;
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 16px;
        }

        /* ========== 内容订阅不对称网格 ========== */
        .reading-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .reading-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .reading-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .reading-card.featured {
            grid-row: span 2;
        }

        .reading-img {
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .reading-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .reading-card:hover .reading-img img {
            transform: scale(1.04);
        }

        .reading-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .reading-label {
            display: inline-block;
            align-self: flex-start;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .reading-body h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .reading-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== 使用小贴士 ========== */
        .tips-wrap {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px 48px;
        }

        .tip-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .tip-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .tip-text h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 4px;
        }

        .tip-text p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-item.active {
            background: var(--primary-light);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 32px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-title);
            text-align: left;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: rgba(46, 109, 180, 0.04);
        }

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-answer p {
            padding: 0 32px 22px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* ========== CTA 区 ========== */
        .section-cta {
            position: relative;
            background: linear-gradient(120deg, rgba(23, 35, 61, 0.88), rgba(30, 79, 134, 0.72)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 88px 0;
            text-align: center;
        }

        .section-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at center top, rgba(46, 109, 180, 0.25), transparent 65%);
            pointer-events: none;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .cta-inner h2 {
            font-size: 34px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .cta-inner .btn-accent {
            font-size: 16px;
            height: 52px;
            padding: 0 42px;
            box-shadow: 0 8px 30px rgba(232, 163, 61, 0.4);
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1D2A3A;
            padding: 64px 0 0;
            color: #B7C0CE;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand i {
            color: var(--accent);
            font-size: 20px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #93A1B4;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
        }

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul a {
            color: #93A1B4;
            font-size: 14px;
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact p {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #93A1B4;
            margin-bottom: 10px;
            font-size: 14px;
        }

        .footer-contact i {
            color: var(--accent);
            margin-top: 4px;
            width: 16px;
            text-align: center;
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #7A8699;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .split-layout {
                gap: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .process-flow {
                flex-direction: column;
                padding: 24px;
            }

            .process-arrow {
                transform: rotate(90deg);
                width: auto;
                height: 28px;
                padding: 4px 0;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .nav-toggle {
                display: flex;
            }

            .header-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 12px 24px rgba(23, 35, 61, 0.08);
                padding: 16px 24px;
                display: none;
                z-index: 99;
            }

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

            .nav-menu {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }

            .nav-menu>li>a {
                padding: 14px 16px;
                font-size: 15px;
            }

            .nav-menu>li>a.active::after {
                left: 16px;
                right: auto;
                width: 28px;
                bottom: 8px;
            }

            .nav-cta {
                margin-top: 8px;
            }

            .nav-cta a.btn {
                width: 100%;
                margin-left: 0;
            }

            .page-hero {
                padding: 56px 0;
            }

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

            .hero-desc {
                font-size: 15px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .section-steps,
            .section-open,
            .section-reading,
            .section-faq {
                padding: 56px 0;
            }

            .section-security,
            .section-tips {
                padding: 56px 0;
            }

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

            .steps-timeline::before {
                left: 26px;
            }

            .step-item {
                gap: 16px;
                padding-left: 12px;
                padding-right: 16px;
            }

            .step-num {
                width: 50px;
                font-size: 24px;
                padding-top: 30px;
            }

            .split-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .split-media img {
                min-height: 220px;
            }

            .process-flow {
                padding: 20px 16px;
            }

            .plan-compare-tip {
                font-size: 12px;
            }

            .reading-grid {
                grid-template-columns: 1fr;
            }

            .reading-card.featured {
                grid-row: auto;
            }

            .reading-img {
                aspect-ratio: 16 / 9;
            }

            .tips-wrap {
                grid-template-columns: 1fr;
                padding: 24px;
                gap: 20px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-answer p {
                padding: 0 20px 18px;
            }

            .section-cta {
                padding: 64px 0;
            }

            .cta-inner h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 32px;
            }

            .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 17px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }

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

            .section-head h2 {
                font-size: 22px;
            }

            .step-content h3 {
                font-size: 17px;
            }

            .split-text h2 {
                font-size: 22px;
            }

            .process-item {
                padding: 12px 6px;
            }

            .plan-table th,
            .plan-table td {
                padding: 14px 14px;
                font-size: 13px;
            }

            .faq-wrap {
                border-radius: 8px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }

            .btn-lg {
                height: 48px;
                padding: 0 30px;
                font-size: 15px;
            }
        }

        /* 无障碍 focus */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(46, 109, 180, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }