/* roulang page: index */
:root {
    --primary: #2054e0;
    --primary-dark: #163e9e;
    --primary-light: #ecf2ff;
    --accent: #f7a928;
    --accent-light: #fff4d9;
    --success: #16a34a;
    --bg-alt: #f4f7fc;
    --bg-dark: #0c1736;
    --text-main: #1a2332;
    --text-muted: #5b6b7f;
    --text-light: #94a3b8;
    --border: #e5eaf1;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow-sm: 0 2px 8px rgba(12, 23, 54, .06);
    --shadow: 0 14px 32px rgba(12, 23, 54, .08);
    --shadow-lg: 0 24px 48px rgba(12, 23, 54, .12);
    --space: 100px;
    --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

body {
    margin: 0;
    font-family: var(--font-main);
    color: var(--text-main);
    background: #fff;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color .2s ease;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    line-height: 1.25;
    font-weight: 700;
}

p {
    margin: 0;
}

.container {
    max-width: 1200px;
}

/* ===== 顶部信息条 ===== */
.topbar {
    background: var(--bg-dark);
    color: #b8c4e0;
    padding: 8px 0;
    font-size: 14px;
}

.topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px 16px;
}

.topbar-left span,
.topbar-right span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

/* ===== 主导航 ===== */
.site-header {
    background: rgba(255, 255, 255, .97);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1050;
    box-shadow: var(--shadow-sm);
}

.navbar {
    padding: 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 0;
}

.brand-icon {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    background: linear-gradient(135deg, var(--primary), #3b74ff);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 6px 16px rgba(32, 84, 224, .28);
}

.brand-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--bg-dark);
}

.navbar-nav .nav-link {
    padding: 22px 18px !important;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
    position: relative;
}

.navbar-nav .nav-link:hover {
    color: var(--primary);
}

.navbar-nav .nav-link.active {
    color: var(--primary);
}

.navbar-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 10px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}

.nav-cta {
    margin-left: 16px;
}

.navbar-toggler {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 12px;
    color: var(--primary);
    background: #fff;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ===== 按钮 ===== */
.btn {
    border-radius: 12px;
    padding: 11px 26px;
    font-weight: 600;
    border: none;
    transition: all .25s ease;
}

.btn-lg {
    padding: 15px 34px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 14px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(32, 84, 224, .32);
}

.btn-accent {
    background: var(--accent);
    color: #1a2332;
}

.btn-accent:hover {
    background: #e89712;
    color: #1a2332;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(247, 169, 40, .35);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, .75);
    color: #fff;
    background: transparent;
}

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

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

.btn-light:hover {
    background: #f0f4ff;
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(255, 255, 255, .3);
}

.btn-primary:focus,
.btn-accent:focus,
.btn-outline-light:focus,
.btn-light:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(247, 169, 40, .25);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 150px 0 120px;
    color: #fff;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(8, 18, 44, .95) 0%, rgba(16, 32, 72, .82) 60%, rgba(32, 84, 224, .55) 100%);
    z-index: -1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .2);
    border-radius: 50px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 600;
    color: #f7d68a;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.16;
    margin-top: 28px;
    letter-spacing: 1px;
}

.hero-title span {
    color: var(--accent);
}

.hero-desc {
    font-size: 17px;
    color: #ccd6ef;
    margin-top: 22px;
    max-width: 560px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 36px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 44px;
    margin-top: 52px;
}

.hero-stats strong {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
}

.hero-stats span {
    font-size: 14px;
    color: #aab8d8;
}

.hero-card {
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 22px;
    padding: 28px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, .18);
}

.hero-card-head {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    padding-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.pulse-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 0 0 rgba(74, 222, 128, .6);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, .5); }
    70% { box-shadow: 0 0 0 12px rgba(74, 222, 128, 0); }
    100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero-card-list {
    padding: 18px 0 8px;
}

.hero-card-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #dbe4f7;
    font-size: 15px;
    padding: 8px 0;
}

.hero-card-list li i {
    color: #4ade80;
}

.hero-card-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(247, 169, 40, .14);
    border: 1px solid rgba(247, 169, 40, .25);
    border-radius: 12px;
    color: #f7d68a;
    font-size: 13px;
    padding: 12px 14px;
    margin-top: 12px;
}

/* ===== 区块通用 ===== */
.section {
    padding: var(--space) 0;
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 700;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    color: var(--bg-dark);
    margin-top: 16px;
}

.section-sub {
    color: var(--text-muted);
    margin-top: 14px;
    font-size: 16px;
    line-height: 1.7;
}

/* ===== 核心说明 ===== */
.features-block {
    background: var(--bg-alt);
}

.feature-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 28px;
    height: 100%;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: var(--primary-light);
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--bg-dark);
    margin-bottom: 12px;
}

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

/* ===== 分类入口 ===== */
.categories-block {
    background: #fff;
}

.category-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.category-card img {
    height: 220px;
    object-fit: cover;
    width: 100%;
}

.category-body {
    padding: 28px 28px 30px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.category-body h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--bg-dark);
    margin-bottom: 10px;
}

.category-body p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 20px;
}

/* ===== 最新资讯 ===== */
.newslist-block {
    background: var(--bg-alt);
}

.news-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 24px;
    height: 100%;
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
}

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

.news-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 6px;
    padding: 4px 12px;
    margin-bottom: 14px;
}

.news-title {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
}

.news-title a {
    color: var(--bg-dark);
}

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

.news-desc {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px dashed var(--border);
    margin-top: 16px;
    padding-top: 12px;
    font-size: 13px;
    color: var(--text-light);
}

.news-more {
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
}

.news-more:hover {
    color: var(--primary-dark);
}

.empty-state {
    background: #fff;
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 16px;
}

/* ===== 使用流程 ===== */
.steps-block {
    background: var(--bg-dark);
    color: #fff;
}

.steps-block .section-title {
    color: #fff;
}

.steps-block .section-sub {
    color: #9db0d0;
}

.step-card {
    background: rgba(255, 255, 255, .05);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: var(--radius);
    padding: 36px 30px;
    height: 100%;
    transition: transform .3s ease, background .3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, .09);
}

.step-num {
    font-size: 46px;
    font-weight: 800;
    color: var(--accent);
    opacity: .9;
    line-height: 1;
    display: block;
    margin-bottom: 18px;
}

.step-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-card p {
    color: #aebbd8;
    font-size: 14px;
    line-height: 1.7;
}

/* ===== 图文区块 ===== */
.split-block {
    background: #fff;
}

.split-img {
    border-radius: 22px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 380px;
}

.split-content h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--bg-dark);
    margin-bottom: 20px;
    line-height: 1.3;
}

.split-list {
    margin-top: 10px;
}

.split-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 14px;
    color: var(--text-muted);
    font-size: 15px;
    line-height: 1.7;
}

.split-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--success);
    position: absolute;
    left: 0;
    top: 0;
}

/* ===== 数据带 ===== */
.stats-band {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 24px;
    padding: 60px 30px;
    color: #fff;
    box-shadow: var(--shadow-lg);
}

.stat-block {
    text-align: center;
}

.stat-block i {
    font-size: 32px;
    color: #f7d68a;
    margin-bottom: 12px;
}

.stat-block strong {
    font-size: 42px;
    font-weight: 800;
    display: block;
    line-height: 1.2;
}

.stat-block span {
    font-size: 15px;
    opacity: .85;
}

/* ===== FAQ ===== */
.faq-block {
    background: var(--bg-alt);
}

.accordion-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) !important;
    overflow: hidden;
    margin-bottom: 12px;
}

.accordion-button {
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--bg-dark);
    background: #fff;
    box-shadow: none;
}

.accordion-button:not(.collapsed) {
    background: var(--primary-light);
    color: var(--primary-dark);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary);
}

.accordion-body {
    padding: 20px 24px 24px;
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    border-top: 1px solid var(--border);
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 100px 0;
    color: #fff;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    z-index: -2;
}

.cta-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(12, 23, 54, .92), rgba(22, 45, 100, .82));
    z-index: -1;
}

.cta-inner {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: 40px;
    font-weight: 800;
}

.cta-inner p {
    color: #c8d3ec;
    font-size: 16px;
    margin-top: 18px;
    line-height: 1.8;
}

.cta-actions {
    margin-top: 32px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-dark);
    color: #93a5c8;
    padding: 70px 0 30px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 24px;
    font-weight: 800;
}

.footer-desc {
    font-size: 14px;
    color: #8c9cbf;
    margin-top: 16px;
    max-width: 320px;
    line-height: 1.7;
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.footer-links a {
    display: inline-block;
    color: #93a5c8;
    font-size: 14px;
    margin-bottom: 10px;
    transition: color .2s;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-contact li {
    display: flex;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 10px;
    color: #93a5c8;
}

.footer-contact li i {
    color: var(--accent);
    margin-top: 4px;
}

.footer-copyright {
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 48px;
    padding-top: 24px;
    text-align: center;
    font-size: 14px;
    color: #6d7ba0;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
    :root {
        --space: 80px;
    }

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

    .navbar-nav .nav-link {
        padding: 14px 0 !important;
        border-bottom: 1px solid var(--border);
    }

    .navbar-nav .nav-link.active::after {
        left: 0;
        right: auto;
        width: 40px;
        bottom: 8px;
    }

    .nav-cta {
        margin: 14px 0 18px;
    }

    .hero {
        padding: 120px 0 90px;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-card {
        margin-top: 40px;
    }

    .split-img {
        min-height: 300px;
        margin-bottom: 30px;
    }
}

@media (max-width: 767.98px) {
    :root {
        --space: 66px;
    }

    .topbar {
        font-size: 13px;
    }

    .hero {
        padding: 90px 0 70px;
    }

    .hero-title {
        font-size: 34px;
    }

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

    .hero-stats {
        gap: 28px;
    }

    .hero-stats strong {
        font-size: 24px;
    }

    .section-title {
        font-size: 30px;
    }

    .feature-card {
        padding: 28px 22px;
    }

    .category-card img {
        height: 190px;
    }

    .stats-band {
        padding: 40px 20px;
    }

    .stat-block strong {
        font-size: 34px;
    }

    .cta-inner h2 {
        font-size: 30px;
    }

    .btn,
    .btn-lg {
        padding: 12px 24px;
        font-size: 15px;
    }
}

@media (max-width: 575.98px) {
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .hero-stats {
        gap: 20px;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .hero-stats strong {
        font-size: 22px;
    }

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

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #5b3df5;
            --primary-dark: #4a2fd0;
            --secondary: #10b981;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #0f172a;
            --muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, .08);
            --shadow-lg: 0 20px 45px rgba(0, 0, 0, .12);
            --transition: all .3s ease;
        }

        /* ===== 基础 Reset ===== */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, textarea {
            font-family: inherit;
        }
        ul, ol {
            list-style: none;
        }
        .container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航栏 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(0, 0, 0, .04);
        }
        .navbar {
            padding: 14px 0;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: .5px;
        }
        .brand:hover {
            color: var(--primary);
        }
        .brand-icon {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-radius: 12px;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(91, 61, 245, .3);
        }
        .navbar .navbar-nav {
            gap: 6px;
        }
        .navbar .nav-link {
            padding: 8px 16px;
            font-weight: 500;
            color: var(--muted);
            border-radius: 50px;
            transition: var(--transition);
        }
        .navbar .nav-link:hover {
            color: var(--primary);
            background: rgba(91, 61, 245, .08);
        }
        .navbar .nav-link.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(91, 61, 245, .3);
        }
        .nav-cta .btn {
            border-radius: 50px;
            padding: 8px 22px;
            font-weight: 600;
        }
        .navbar-toggler {
            border: none;
            font-size: 22px;
            color: var(--text);
            padding: 4px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary);
        }

        /* 按钮 */
        .btn {
            border-radius: 50px;
            padding: 12px 28px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(91, 61, 245, .3);
        }
        .btn-outline-light {
            border: 2px solid rgba(255, 255, 255, .8);
        }
        .btn-outline-light:hover {
            background: #fff;
            color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 文章页 Hero ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background:
                linear-gradient(180deg, rgba(24, 39, 75, .88), rgba(44, 62, 80, .72)),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
        }
        .article-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 24px;
        }
        .article-hero .breadcrumb-item,
        .article-hero .breadcrumb-item a,
        .article-hero .breadcrumb-item::before {
            color: rgba(255, 255, 255, .75);
        }
        .article-hero .breadcrumb-item.active {
            color: #fff;
            font-weight: 500;
        }
        .article-hero h1 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }
        .article-meta .badge {
            background: var(--secondary);
            font-size: 14px;
            padding: 8px 16px;
            border-radius: 50px;
            font-weight: 600;
        }
        .meta-item {
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-hero .hero-cover {
            border-radius: var(--radius);
            box-shadow: var(--shadow-lg);
        }

        /* ===== 文章正文区域 ===== */
        .article-body-section {
            padding: 60px 0;
        }
        .article-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 48px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .article-content {
            font-size: 17px;
            color: #334155;
            line-height: 1.9;
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .article-content h2 {
            font-size: 26px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--primary);
            display: inline-block;
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-content blockquote {
            background: #f1f5f9;
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--muted);
        }
        .article-content ul,
        .article-content ol {
            margin: 20px 0;
            padding-left: 24px;
        }
        .article-content li {
            margin-bottom: 10px;
        }
        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid var(--primary);
        }

        /* 内容未找到 */
        .not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
        }
        .not-found p {
            color: var(--muted);
            font-size: 18px;
            margin-bottom: 32px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 60px 0 40px;
            background: #fff;
        }
        .related-section .section-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .related-section .section-subtitle {
            color: var(--muted);
            margin-bottom: 40px;
        }
        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }
        .feature-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: rgba(91, 61, 245, .1);
            color: var(--primary);
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-card p {
            color: var(--muted);
            font-size: 15px;
            flex: 1;
        }
        .feature-card .card-link {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
        }
        .feature-card .card-link:hover {
            gap: 12px;
        }

        /* ===== CTA 板块 ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            opacity: .9;
            max-width: 600px;
            margin: 0 auto 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0b1220;
            color: #cbd5e1;
            padding: 60px 0 24px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            color: #94a3b8;
            margin-top: 14px;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-title {
            color: #fff;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .footer-links {
            font-size: 15px;
        }
        .footer-links a {
            color: #cbd5e1;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-contact li {
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: #cbd5e1;
            font-size: 15px;
        }
        .footer-contact i {
            color: var(--secondary);
            margin-top: 4px;
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 40px;
            padding-top: 24px;
            text-align: center;
            color: #64748b;
            font-size: 14px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 60px 0 40px;
            }
            .article-card {
                padding: 32px;
            }
        }
        @media (max-width: 768px) {
            .navbar .navbar-nav {
                padding: 12px 0;
                gap: 0;
            }
            .navbar .nav-link {
                padding: 10px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-cta {
                margin-top: 12px;
            }
            .article-hero h1 {
                font-size: 1.7rem;
            }
            .article-card {
                padding: 24px 20px;
            }
            .article-content {
                font-size: 16px;
            }
            .cta-section {
                padding: 60px 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .brand-text {
                font-size: 18px;
            }
            .article-hero {
                padding: 40px 0 30px;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .article-card {
                padding: 18px 14px;
            }
            .footer-brand {
                font-size: 20px;
            }
            .footer-copyright {
                font-size: 13px;
                line-height: 1.6;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #4f6df5;
    --primary-dark: #3b55d6;
    --primary-light: #eef1fe;
    --accent: #ff7a45;
    --accent-light: #fff3ed;
    --dark: #1e2340;
    --text: #3d435c;
    --text-light: #7a8199;
    --bg: #f8f9fd;
    --white: #ffffff;
    --border: #e6e9f2;
    --shadow-sm: 0 2px 8px rgba(30, 35, 64, 0.06);
    --shadow-md: 0 8px 30px rgba(30, 35, 64, 0.08);
    --shadow-lg: 0 20px 50px rgba(30, 35, 64, 0.12);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 24px;
    --space-section: 84px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container {
    max-width: 1200px;
    padding-left: 20px;
    padding-right: 20px;
}

/* ========== Header / Nav ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1050;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 16px rgba(30, 35, 64, 0.05);
}

.site-header .navbar {
    padding: 14px 0;
    background: var(--white);
}

.site-header .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.3px;
}

.site-header .brand:hover {
    color: var(--dark);
    transform: translateY(-1px);
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #7b8df8);
    color: var(--white);
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(79, 109, 245, 0.3);
}

.brand-text {
    background: linear-gradient(135deg, var(--dark), var(--primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.site-header .navbar-nav {
    gap: 4px;
}

.site-header .nav-link {
    font-weight: 600;
    font-size: 15px;
    color: var(--text);
    padding: 8px 18px !important;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
}

.site-header .nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.site-header .nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
    font-weight: 700;
}

.site-header .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}

.nav-cta .btn {
    padding: 9px 26px;
    font-weight: 600;
    border-radius: 50px;
}

.site-header .navbar-toggler {
    border: none;
    color: var(--dark);
    font-size: 20px;
    padding: 6px 10px;
}

.site-header .navbar-toggler:focus {
    box-shadow: none;
    outline: 2px solid var(--primary);
    border-radius: 8px;
}

/* ========== Buttons ========== */
.btn {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #6a7ff5);
    color: var(--white);
    box-shadow: 0 6px 20px rgba(79, 109, 245, 0.28);
}

.btn-primary:hover, .btn-primary:focus {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(79, 109, 245, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 6px 16px rgba(79, 109, 245, 0.25);
}

.btn-outline-light {
    border: 2px solid var(--white);
    color: var(--white);
    background: transparent;
    border-radius: 50px;
    padding: 10px 26px;
    font-weight: 600;
}

.btn-outline-light:hover {
    background: var(--white);
    color: var(--primary);
    border-color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn-light {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 6px 20px rgba(79, 109, 245, 0.2);
}

.btn-light:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(79, 109, 245, 0.3);
}

/* ========== Page Banner ========== */
.page-banner {
    position: relative;
    padding: 100px 0 90px;
    background: linear-gradient(135deg, rgba(30, 35, 64, 0.88), rgba(79, 109, 245, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    color: var(--white);
    text-align: center;
}

.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255, 122, 69, 0.2), transparent 50%);
    pointer-events: none;
}

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

.page-banner .breadcrumb-wrap {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.page-banner .breadcrumb-wrap a {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.page-banner .breadcrumb-wrap a:hover {
    color: var(--white);
}

.page-banner .breadcrumb-wrap span {
    color: var(--white);
    font-weight: 600;
}

.page-banner .breadcrumb-wrap .sep {
    color: rgba(255, 255, 255, 0.5);
}

.page-banner h1 {
    font-size: 46px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.page-banner .banner-lead {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 720px;
    margin: 0 auto 32px;
    line-height: 1.8;
}

.banner-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.banner-tags .badge-tag {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(8px);
}

.badge-tag i {
    margin-right: 6px;
    color: rgba(255, 122, 69, 1);
}

/* ========== Section base ========== */
.section {
    padding: var(--space-section) 0;
}

.section-alt {
    background: var(--bg);
}

.section-head {
    max-width: 700px;
    margin-bottom: 48px;
}

.section-head .section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 700;
    font-size: 14px;
    background: var(--primary-light);
    padding: 7px 18px;
    border-radius: 50px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.3;
    letter-spacing: -0.4px;
    margin-bottom: 12px;
}

.section-head p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

.text-center .section-head {
    margin-left: auto;
    margin-right: auto;
}

/* ========== Step Cards ========== */
.step-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 28px;
    height: 100%;
    position: relative;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.step-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 109, 245, 0.3);
}

.step-num {
    position: absolute;
    top: 26px;
    right: 26px;
    font-size: 44px;
    font-weight: 800;
    color: var(--primary-light);
    line-height: 1;
    transition: var(--transition);
}

.step-card:hover .step-num {
    color: rgba(79, 109, 245, 0.25);
}

.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 62px;
    height: 62px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), #7b8df8);
    color: var(--white);
    font-size: 24px;
    margin-bottom: 22px;
    box-shadow: 0 8px 24px rgba(79, 109, 245, 0.3);
}

.step-card h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14.5px;
    color: var(--text-light);
    line-height: 1.75;
    margin-bottom: 0;
}

.step-card .step-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
}

.step-card .step-link i {
    transition: transform 0.3s ease;
}

.step-card .step-link:hover i {
    transform: translateX(4px);
}

/* ========== Feature Cards ========== */
.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

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

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

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

.feature-card .card-img-wrap::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(30, 35, 64, 0.3), transparent 55%);
}

.feature-card .card-body {
    padding: 26px;
}

.feature-card .card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    line-height: 1.45;
}

.feature-card .card-body p {
    font-size: 14.5px;
    color: var(--text-light);
    line-height: 1.75;
    margin-bottom: 16px;
}

.card-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12.5px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 50px;
    margin-bottom: 14px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
}

.card-link i {
    transition: transform 0.3s ease;
}

.card-link:hover {
    color: var(--primary-dark);
}

.card-link:hover i {
    transform: translateX(4px);
}

/* ========== Checklist ========== */
.checklist-wrap {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.checklist-wrap::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--accent));
}

.checklist-wrap h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 26px;
}

.checklist-wrap h3 i {
    color: var(--primary);
}

.checklist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 30px;
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
}

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

.checklist-item i.fa-check {
    color: var(--primary);
    background: var(--primary-light);
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 3px;
}

.checklist-item span {
    font-size: 15px;
    color: var(--text);
    line-height: 1.6;
}

/* ========== Quick Guide ========== */
.quick-card {
    display: flex;
    gap: 20px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

.quick-card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 109, 245, 0.25);
    transform: translateY(-3px);
}

.quick-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.quick-icon.blue {
    background: var(--primary-light);
    color: var(--primary);
}

.quick-icon.orange {
    background: var(--accent-light);
    color: var(--accent);
}

.quick-icon.green {
    background: #eafaf1;
    color: #22c55e;
}

.quick-content h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.quick-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 0;
}

/* ========== FAQ ========== */
.faq-wrap {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

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

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

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 30px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    list-style: none;
    transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary:hover {
    background: var(--bg);
}

.faq-item summary i.fa-plus {
    color: var(--primary);
    font-size: 14px;
    transition: transform 0.3s ease;
}

.faq-item[open] summary i.fa-plus {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 30px 24px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

/* ========== CTA ========== */
.cta-section {
    padding: 80px 0;
}

.cta-box {
    position: relative;
    background: linear-gradient(135deg, var(--dark) 0%, #343a63 50%, var(--primary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 64px 50px;
    text-align: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-box::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.cta-box::after {
    content: "";
    position: absolute;
    bottom: -120px;
    left: -50px;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255, 122, 69, 0.15);
}

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

.cta-box h2 {
    color: var(--white);
    font-size: 34px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.3px;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    max-width: 620px;
    margin: 0 auto 34px;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 70px 0 0;
}

.site-footer .footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 18px;
}

.site-footer .footer-desc {
    font-size: 14.5px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 340px;
}

.site-footer .footer-title {
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.site-footer .footer-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.site-footer .footer-links a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14.5px;
    transition: var(--transition);
    line-height: 2.2;
}

.site-footer .footer-links a:hover {
    color: var(--white);
    text-decoration: none;
}

.site-footer .footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer .footer-contact li {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 14px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

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

.footer-copyright {
    margin-top: 50px;
    padding: 22px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.45);
}

/* ========== Responsive ========== */
@media (max-width: 991.98px) {
    .site-header .navbar-collapse {
        background: var(--white);
        padding: 20px;
        border-radius: var(--radius);
        box-shadow: var(--shadow-md);
        margin-top: 14px;
        border: 1px solid var(--border);
    }

    .site-header .navbar-nav {
        gap: 6px;
    }

    .site-header .nav-link.active::after {
        display: none;
    }

    .nav-cta {
        margin-top: 16px;
        text-align: center;
    }

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

    .page-banner {
        padding: 80px 0;
    }

    .page-banner h1 {
        font-size: 34px;
    }

    .section {
        --space-section: 60px;
    }

    .section-head h2 {
        font-size: 28px;
    }

    .checklist-wrap {
        padding: 30px;
    }

    .cta-box {
        padding: 48px 30px;
    }

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

@media (max-width: 767.98px) {
    .page-banner {
        padding: 64px 0 56px;
    }

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

    .page-banner .banner-lead {
        font-size: 15px;
        line-height: 1.7;
    }

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

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

    .checklist-wrap {
        padding: 24px 20px;
    }

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

    .faq-answer {
        padding: 0 20px 18px;
        font-size: 14px;
    }

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

    .cta-buttons .btn {
        width: 100%;
        display: block;
    }

    .quick-card {
        padding: 24px;
    }
}

@media (max-width: 575.98px) {
    .site-header .brand {
        font-size: 18px;
    }

    .site-header .brand .brand-icon {
        width: 34px;
        height: 34px;
        font-size: 14px;
    }

    .page-banner h1 {
        font-size: 25px;
    }

    .banner-tags .badge-tag {
        font-size: 13px;
        padding: 6px 14px;
    }

    .step-card {
        padding: 26px 22px;
    }

    .step-num {
        font-size: 36px;
        top: 20px;
        right: 20px;
    }

    .feature-card .card-body {
        padding: 20px;
    }

    .cta-box {
        padding: 40px 20px;
    }
}

/* roulang page: category2 */
:root {
  --primary: #4f46e5;
  --primary-light: #818cf8;
  --primary-dark: #3730a3;
  --secondary: #0f172a;
  --accent: #10b981;
  --accent-light: #d1fae5;
  --bg: #f8fafc;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 30px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1200px; }
a { text-decoration: none; color: var(--primary); transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
.btn { border-radius: var(--radius-sm); font-weight: 600; padding: 10px 24px; transition: var(--transition); border: none; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 4px 16px rgba(79, 70, 229, 0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4); }
.btn-outline-light { background: transparent; border: 2px solid rgba(255,255,255,0.6); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 14px 36px; font-size: 1.05rem; border-radius: 12px; }
.btn-sm { padding: 7px 18px; font-size: 0.875rem; }

/* ====== 顶部信息条 ====== */
.top-bar {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.75);
  font-size: 0.85rem;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: rgba(255,255,255,0.85); margin-left: 16px; }
.top-bar a:hover { color: #fff; }
.top-bar .top-bar-right { display: flex; align-items: center; gap: 8px; }
.top-bar .top-bar-right .badge-soft { background: rgba(16,185,129,0.2); color: #6ee7b7; padding: 2px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; }

/* ====== 导航 ====== */
.site-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15,23,42,0.04);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.navbar { padding: 12px 0; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 10px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  box-shadow: 0 4px 12px rgba(79,70,229,0.3);
}
.brand-text { font-size: 1.25rem; font-weight: 800; color: var(--text); letter-spacing: -0.02em; }
.navbar-nav .nav-link {
  color: var(--text-light);
  font-weight: 500;
  padding: 8px 18px !important;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}
.navbar-nav .nav-link:hover { color: var(--primary); background: rgba(79,70,229,0.06); }
.navbar-nav .nav-link.active { color: var(--primary); background: rgba(79,70,229,0.08); font-weight: 600; }
.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 18px; right: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 2px;
}
.nav-cta .btn { margin-left: 8px; }
.navbar-toggler { border: none; color: var(--text); font-size: 1.3rem; padding: 4px 8px; }
.navbar-toggler:focus { box-shadow: none; }

/* ====== 页面头部 ====== */
.page-hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e1b4b 60%, var(--primary-dark) 100%);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}
.page-hero .bg-img {
  position: absolute; inset: 0;
  background-image: url(/assets/images/backpic/back-2.png);
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero .hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: #a5b4fc;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  backdrop-filter: blur(8px);
  margin-bottom: 20px;
}
.page-hero h1 {
  color: #fff;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 14px;
}
.page-hero p.lead {
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 28px;
}
.page-hero .btn { border-radius: 12px; }

/* ====== 板块通用 ====== */
.section { padding: 80px 0; }
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(79,70,229,0.08);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-title { font-size: 2rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; margin-bottom: 12px; }
.section-subtitle { color: var(--text-light); font-size: 1.05rem; max-width: 640px; margin: 0 auto; }

/* ====== 安全要点卡片 ====== */
.safety-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; }
.safety-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.safety-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: var(--transition);
}
.safety-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: rgba(79,70,229,0.2); }
.safety-card:hover::before { opacity: 1; }
.safety-card .card-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  background: rgba(79,70,229,0.1);
  color: var(--primary);
}
.safety-card:nth-child(2) .card-icon { background: rgba(16,185,129,0.1); color: var(--accent); }
.safety-card:nth-child(3) .card-icon { background: rgba(245,158,11,0.1); color: #f59e0b; }
.safety-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; }
.safety-card p { color: var(--text-light); font-size: 0.92rem; line-height: 1.7; margin: 0; }

/* ====== 识别对比区块 ====== */
.compare-section { background: var(--bg-white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.compare-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 36px;
  height: 100%;
  border: 1px solid var(--border);
}
.compare-card.danger { border-color: rgba(239,68,68,0.2); }
.compare-card .compare-header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.compare-card .compare-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
.compare-card.safe .compare-icon { background: rgba(16,185,129,0.1); color: var(--accent); }
.compare-card.danger .compare-icon { background: rgba(239,68,68,0.1); color: #ef4444; }
.compare-card h3 { font-size: 1.2rem; font-weight: 700; margin: 0; }
.compare-pills { display: flex; flex-direction: column; gap: 12px; }
.compare-pills .pill { display: flex; align-items: flex-start; gap: 10px; font-size: 0.92rem; color: var(--text); }
.compare-pills .pill i { margin-top: 4px; flex-shrink: 0; }
.compare-pills .pill.safe i { color: var(--accent); }
.compare-pills .pill.danger i { color: #ef4444; }

/* ====== 安全自检清单 ====== */
.checklist-section { position: relative; }
.checklist-section .bg-img {
  position: absolute; inset: 0;
  background-image: url(/assets/images/backpic/back-3.png);
  background-size: cover;
  background-position: center;
  opacity: 0.06;
  pointer-events: none;
}
.checklist-section .container { position: relative; z-index: 2; }
.checklist-wrap {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 48px;
  max-width: 820px;
  margin: 48px auto 0;
}
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.checklist-item:last-child { border-bottom: none; }
.checklist-item .check-box {
  width: 26px; height: 26px;
  border-radius: 8px;
  background: rgba(16,185,129,0.1);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
  margin-top: 4px;
}
.checklist-item h4 { font-size: 1rem; font-weight: 700; margin: 0 0 4px; }
.checklist-item p { color: var(--text-light); font-size: 0.9rem; margin: 0; }

/* ====== 内容列表区块 ====== */
.article-list-section { background: var(--bg); }
.article-list { display: flex; flex-direction: column; gap: 16px; margin-top: 44px; }
.article-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}
.article-item:hover { box-shadow: var(--shadow-md); transform: translateX(6px); border-color: rgba(79,70,229,0.25); }
.article-item .article-thumb { width: 72px; height: 72px; border-radius: 12px; overflow: hidden; flex-shrink: 0; }
.article-item .article-thumb img { width: 100%; height: 100%; object-fit: cover; }
.article-item .article-content { flex: 1; min-width: 0; }
.article-item .article-content h3 { font-size: 1.05rem; font-weight: 600; margin: 0 0 6px; color: var(--text); }
.article-item .article-content p { color: var(--text-light); font-size: 0.88rem; margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.article-item .article-meta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; color: var(--text-lighter); font-size: 0.82rem; }
.article-item .article-meta .tag-badge { background: rgba(79,70,229,0.08); color: var(--primary); padding: 3px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }

/* ====== 数据统计栏 ====== */
.stats-bar {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}
.stats-bar::after {
  content: '';
  position: absolute;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  top: -180px; right: -80px;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
.stat-item { text-align: center; color: #fff; padding: 16px; }
.stat-item .stat-num { font-size: 2.4rem; font-weight: 800; display: block; margin-bottom: 6px; letter-spacing: -0.02em; }
.stat-item .stat-label { color: rgba(255,255,255,0.8); font-size: 0.9rem; }

/* ====== 官方通道 CTA ====== */
.cta-section { position: relative; background: var(--bg-white); }
.cta-box {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1e1b4b 100%);
  border-radius: 24px;
  padding: 56px 48px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: '';
  position: absolute;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(79,70,229,0.3), transparent);
  top: -100px; right: -60px;
}
.cta-box::after {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(16,185,129,0.15);
  bottom: -80px; left: 10%;
  filter: blur(30px);
}
.cta-box .cta-content { position: relative; z-index: 2; color: #fff; }
.cta-box .cta-content h2 { font-size: 1.7rem; font-weight: 800; margin: 0 0 10px; }
.cta-box .cta-content p { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin: 0; }
.cta-box .cta-action { position: relative; z-index: 2; display: flex; gap: 16px; flex-wrap: wrap; }

/* ====== FAQ 区块 ====== */
.faq-section { background: var(--bg); }
.faq-list { max-width: 860px; margin: 48px auto 0; }
.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(79,70,229,0.2); box-shadow: var(--shadow-md); }
.faq-item summary {
  padding: 20px 28px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  color: var(--text-lighter);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary { color: var(--primary); }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-item .faq-answer { padding: 0 28px 24px; color: var(--text-light); font-size: 0.92rem; line-height: 1.8; }

/* ====== 页脚 ====== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 24px;
}
.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-desc { font-size: 0.9rem; color: rgba(255,255,255,0.55); max-width: 340px; line-height: 1.75; }
.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links { display: flex; flex-wrap: wrap; gap: 6px; font-size: 0.9rem; }
.footer-links a { color: rgba(255,255,255,0.6); }
.footer-links a:hover { color: #fff; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { font-size: 0.88rem; margin-bottom: 10px; color: rgba(255,255,255,0.55); }
.footer-contact li i { width: 22px; color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 44px;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.84rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* ====== 响应式 ====== */
@media (max-width: 992px) {
  .safety-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .navbar-collapse { background: var(--bg-white); padding: 16px; border-radius: 14px; box-shadow: var(--shadow-md); margin-top: 12px; }
  .navbar-nav .nav-link { padding: 12px 16px !important; }
  .nav-cta { padding: 10px 0; text-align: center; }
  .page-hero { padding: 56px 0; }
  .page-hero h1 { font-size: 2rem; }
  .cta-box { padding: 40px 32px; flex-direction: column; text-align: center; justify-content: center; }
  .cta-box .cta-action { justify-content: center; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-title { font-size: 1.6rem; }
  .safety-grid { grid-template-columns: 1fr; }
  .article-item { flex-wrap: wrap; gap: 16px; }
  .article-item .article-meta { width: 100%; justify-content: flex-start; }
  .checklist-wrap { padding: 32px 24px; }
  .top-bar .container { flex-direction: column; gap: 4px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-item .stat-num { font-size: 1.8rem; }
}
@media (max-width: 520px) {
  .page-hero h1 { font-size: 1.7rem; }
  .page-hero p.lead { font-size: 0.95rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat-item { padding: 10px; }
  .stat-item .stat-num { font-size: 1.5rem; }
  .cta-box { padding: 32px 24px; }
  .cta-box .cta-content h2 { font-size: 1.3rem; }
  .faq-item summary { padding: 16px 20px; font-size: 0.92rem; }
  .faq-item .faq-answer { padding: 0 20px 20px; }
  .article-item { padding: 16px; }
  .checklist-wrap { padding: 24px 16px; }
}