/* roulang page: index */
:root {
    --primary: #2B6CB0;
    --primary-dark: #1E5A9E;
    --primary-light: #E8F1FA;
    --accent: #D69E2E;
    --accent-light: #E67E22;
    --bg: #F7FAFC;
    --card: #FFFFFF;
    --text: #1A2A3A;
    --text-secondary: #5A6E7E;
    --text-muted: #9AAAB8;
    --border: #E2E8F0;
    --radius: 16px;
    --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.04);
    --shadow-hover: 0 12px 24px rgba(0,0,0,0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
}
.section-title::before {
    content: "";
    width: 12px;
    height: 28px;
    background: var(--primary);
    border-radius: 4px;
    display: block;
    flex-shrink: 0;
}
.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 640px;
    line-height: 1.7;
}
.text-gradient { background: linear-gradient(90deg, #fff 70%, rgba(255,255,255,.75)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ===== Header / Nav ===== */
.site-header {
    padding: 16px 0 8px;
    position: relative;
    z-index: 50;
}
.nav-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.96);
    border-radius: 18px;
    padding: 12px 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 6px 20px rgba(45,108,176,0.06);
    border: 1px solid rgba(226,232,240,0.7);
}
.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 800;
    font-size: 24px;
    color: var(--primary);
    letter-spacing: -0.5px;
}
.nav-logo i { font-size: 22px; color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-icon-card {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--primary-light);
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
}
.nav-icon-card i { font-size: 15px; color: var(--primary); }
.nav-icon-card:hover {
    color: var(--primary);
    background: #fff;
    border-color: rgba(43,108,176,0.3);
    transform: translateY(-1px);
}
.nav-icon-card.active {
    background: var(--primary);
    color: #fff;
}
.nav-icon-card.active i { color: #fff; }
.nav-cta .btn-primary { padding: 10px 24px; font-size: 14px; }
.menu-btn { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 12px; background: var(--primary-light); color: var(--primary); font-size: 20px; transition: background .2s; }
.menu-btn:hover { background: #dbeafe; }
.mobile-menu { display: none; }
.mobile-menu.open { display: block; }
.mobile-nav-list { background: #fff; border-radius: 16px; box-shadow: var(--shadow-card); margin-top: 8px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.mobile-nav-list a { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; background: var(--primary-light); font-weight: 600; font-size: 15px; color: var(--text-secondary); }
.mobile-nav-list a i { color: var(--primary); width: 18px; }
.mobile-nav-list a.active { background: var(--primary); color: #fff; }
.mobile-nav-list a.active i { color: #fff; }

/* ===== Buttons ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 14px 28px;
    border-radius: 10px;
    border: 1px solid var(--primary);
    transition: all .25s ease;
    line-height: 1.2;
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(43,108,176,0.25); }
.btn-primary:active { transform: scale(0.98); }
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    font-size: 15px;
    padding: 13px 26px;
    border-radius: 10px;
    border: 1px solid var(--primary);
    transition: all .25s ease;
    line-height: 1.2;
}
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(43,108,176,0.12); }
.btn-outline:active { transform: scale(0.98); }
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--accent);
    color: #1A2A3A;
    font-weight: 700;
    font-size: 17px;
    padding: 18px 36px;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: all .25s ease;
    line-height: 1.2;
    box-shadow: 0 6px 18px rgba(214,158,46,0.25);
}
.btn-accent:hover { background: #E67E22; color: #fff; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(214,158,46,0.35); }
.btn-accent:active { transform: scale(0.98); }
.btn-white { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--primary); font-weight: 700; font-size: 16px; padding: 16px 32px; border-radius: 12px; transition: all .25s ease; box-shadow: 0 4px 14px rgba(0,0,0,0.1); }
.btn-white:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.12); }
.btn-white:active { transform: scale(0.98); }

/* ===== Hero ===== */
.hero {
    position: relative;
    background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    border-radius: 24px;
    overflow: hidden;
    min-height: 520px;
    display: flex;
    align-items: center;
    margin-top: 12px;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, rgba(26,42,58,0.88) 0%, rgba(26,54,93,0.72) 38%, rgba(43,108,176,0.35) 72%, rgba(43,108,176,0.15) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 64px 48px; max-width: 720px; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 7px 16px;
    border-radius: 100px;
    backdrop-filter: blur(4px);
    margin-bottom: 22px;
}
.hero-badge i { color: #F6E05E; }
.hero h1 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero-desc {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255,255,255,0.92);
    margin-bottom: 32px;
    max-width: 560px;
}
.hero-buttons { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-scroll-hint {
    position: absolute;
    bottom: 24px;
    left: 48px;
    z-index: 2;
    background: rgba(255,255,255,0.18);
    border-radius: 100px;
    padding: 8px 18px;
    color: rgba(255,255,255,0.9);
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(6px);
}
.hero-scroll-hint i { animation: bounceDown 1.2s infinite; }
@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

/* ===== Feature Cards ===== */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 28px 24px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(43,108,176,0.3); }
.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    transition: background .3s, color .3s;
}
.feature-card:hover .feature-icon { background: var(--primary); color: #fff; }
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.feature-card p { font-size: 14px; line-height: 1.7; color: var(--text-secondary); margin-bottom: 14px; flex: 1; }
.feature-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; transition: gap .2s; }
.feature-link:hover { gap: 10px; color: var(--primary-dark); }

/* ===== Stats Section ===== */
.stats-section {
    background: linear-gradient(135deg, #1A365D 0%, #2B6CB0 100%);
    border-radius: 24px;
    padding: 60px 48px;
    position: relative;
    overflow: hidden;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after { content: ""; position: absolute; right: -16px; top: 20%; height: 60%; width: 1px; background: rgba(255,255,255,0.15); }
.stat-icon { color: var(--accent); font-size: 24px; margin-bottom: 12px; }
.stat-number { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.1; letter-spacing: -0.02em; }
.stat-number .suffix { color: var(--accent); font-size: 28px; margin-left: 2px; }
.stat-label { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 8px; letter-spacing: 0.02em; }

/* ===== Steps ===== */
.steps-section { background: #fff; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 22px;
    text-align: center;
    position: relative;
    transition: all .3s ease;
}
.step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.step-num {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 17px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    position: relative;
    z-index: 2;
}
.step-card.done .step-num { background: var(--accent); }
.step-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.step-connector { display: none; }

/* ===== News Section ===== */
.news-section { background: var(--bg); }
.news-list { display: flex; flex-direction: column; gap: 18px; margin-top: 36px; }
.news-item {
    display: block;
    background: #fff;
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    padding: 24px 28px;
    transition: all .3s ease;
}
.news-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(43,108,176,0.25); }
.news-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 10px;
}
.news-title { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 8px; line-height: 1.5; }
.news-summary { font-size: 15px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--text-muted); border-top: 1px solid #F1F5F9; padding-top: 12px; }
.news-meta time { display: inline-flex; align-items: center; gap: 6px; }
.news-meta .read-more { color: var(--primary); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; transition: gap .2s; }
.news-item:hover .read-more { gap: 10px; color: var(--primary-dark); }
.empty-tip { background: var(--primary-light); border-radius: 14px; padding: 28px; text-align: center; color: var(--text-secondary); font-size: 15px; margin-top: 24px; }

/* ===== Category Preview ===== */
.cat-preview-section { background: var(--primary-light); }
.cat-preview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 36px; }
.cat-preview-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    transition: all .3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.cat-preview-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: rgba(43,108,176,0.3); }
.cat-preview-image { height: 170px; background-size: cover; background-position: center; position: relative; }
.cat-preview-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(26,42,58,0.45) 100%); }
.cat-preview-body { padding: 22px 24px; display: flex; flex-direction: column; flex: 1; }
.cat-preview-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.cat-preview-body p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: 16px; }
.cat-preview-btn { display: inline-flex; align-items: center; gap: 8px; color: var(--primary); font-weight: 600; font-size: 14px; }
.cat-preview-btn:hover { gap: 12px; color: var(--primary-dark); }

/* ===== FAQ ===== */
.faq-section { background: #fff; }
.faq-list { max-width: 860px; margin: 40px auto 0; display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--border); border-radius: 14px; overflow: hidden; background: var(--bg); transition: border-color .3s; }
.faq-item.active { border-color: rgba(43,108,176,0.35); background: #fff; }
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 22px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: background .2s;
}
.faq-question:hover { background: var(--primary-light); }
.faq-icon { width: 28px; height: 28px; flex-shrink: 0; border-radius: 8px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; transition: transform .3s, background .3s, color .3s; }
.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-inner { padding: 0 22px 20px; color: var(--text-secondary); font-size: 15px; line-height: 1.75; border-top: 1px dashed transparent; }
.faq-item.active .faq-answer-inner { border-top-color: var(--border); padding-top: 14px; }

/* ===== CTA ===== */
.cta-section { padding: 80px 0; background: var(--bg); }
.cta-box {
    background: linear-gradient(120deg, #1A365D 0%, #2B6CB0 60%, #3182CE 100%);
    border-radius: 28px;
    padding: 64px 56px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 40px rgba(26,54,93,0.2);
}
.cta-box::before { content: ""; position: absolute; top: -40px; right: -40px; width: 200px; height: 200px; border-radius: 50%; background: rgba(255,255,255,0.06); }
.cta-box::after { content: ""; position: absolute; bottom: -60px; left: 20px; width: 160px; height: 160px; border-radius: 50%; background: rgba(214,158,46,0.15); }
.cta-box h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 16px; letter-spacing: -0.02em; position: relative; z-index: 1; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 32px; position: relative; z-index: 1; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: #12202E; color: #94A3B8; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .nav-logo { color: #fff; margin-bottom: 16px; }
.footer-brand .nav-logo i { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #94A3B8; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.02em; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: #94A3B8; transition: color .2s, padding-left .2s; display: inline-flex; align-items: center; gap: 8px; }
.footer-links a i { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact p { font-size: 14px; line-height: 1.9; display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent); width: 18px; }
.footer-bottom { text-align: center; padding: 20px 0; font-size: 13px; color: #64748B; }
.footer-bottom .domain-text { color: #94A3B8; }

/* ===== Focus Visible ===== */
a:focus-visible, button:focus-visible { outline: 3px solid rgba(43,108,176,0.5); outline-offset: 2px; border-radius: 6px; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .cat-preview-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .container { padding: 0 16px; }
    .nav-links, .nav-cta { display: none; }
    .menu-btn { display: flex; }
    .mobile-menu { display: block; }
    .nav-panel { padding: 12px 16px; }
    .hero { min-height: 460px; }
    .hero-content { padding: 40px 24px; }
    .hero h1 { font-size: 28px; line-height: 1.3; }
    .hero-desc { font-size: 16px; }
    .hero-scroll-hint { left: 24px; }
    .stats-section { padding: 48px 28px; }
    .stat-number { font-size: 30px; }
    .cta-box { padding: 44px 28px; }
    .cta-box h2 { font-size: 24px; }
    .section-title { font-size: 23px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .news-item { padding: 20px; }
}
@media (max-width: 520px) {
    .feature-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .cat-preview-grid { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn-primary, .hero-buttons .btn-outline { width: 100%; justify-content: center; }
    .cta-buttons .btn-accent, .cta-buttons .btn-white { width: 100%; justify-content: center; }
}

/* ===== Print ===== */
@media print {
    .site-header, .cta-section, .site-footer { display: none; }
}

/* roulang page: category1 */
:root {
            --primary: #2B6CB0;
            --primary-light: #E8F1FA;
            --primary-dark: #1E5A9E;
            --accent: #D69E2E;
            --accent-dark: #B7791F;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --text: #1A2A3A;
            --text-secondary: #5A6E7E;
            --text-faint: #9AAAB8;
            --border: #E2E8F0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.04);
            --shadow-hover: 0 12px 24px rgba(0,0,0,0.08);
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 导航面板 ===== */
        .nav-panel {
            position: sticky;
            top: 0;
            z-index: 50;
            background: linear-gradient(135deg, #ffffff 0%, #E8F1FA 100%);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 20px rgba(43, 108, 176, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 32px;
            gap: 24px;
            flex-wrap: wrap;
        }

        .nav-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .nav-icon-card {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 18px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(226, 232, 240, 0.9);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
        }

        .nav-icon-card i {
            font-size: 15px;
            color: var(--text-faint);
            transition: color 0.25s ease;
        }

        .nav-icon-card:hover {
            background: var(--card);
            border-color: rgba(43, 108, 176, 0.3);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.08);
        }

        .nav-icon-card:hover i {
            color: var(--primary);
        }

        .nav-icon-card.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #ffffff;
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.28);
        }

        .nav-icon-card.active i {
            color: #ffffff;
        }

        .nav-cta .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.25s ease;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.22);
        }

        .nav-cta .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(43, 108, 176, 0.28);
        }

        .menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: var(--card);
            border: 1px solid var(--border);
            color: var(--primary);
            font-size: 18px;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 96px 0;
            margin-bottom: 0;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(26, 42, 58, 0.82) 0%, rgba(43, 108, 176, 0.62) 60%, rgba(43, 108, 176, 0.25) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 30px;
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            backdrop-filter: blur(4px);
            margin-bottom: 22px;
        }

        .hero-tag i {
            color: #F6E05E;
        }

        .hero-title {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.18;
            color: #fff;
            letter-spacing: 0.5px;
            max-width: 640px;
            margin-bottom: 18px;
        }

        .hero-title span {
            color: #F6E05E;
            position: relative;
        }

        .hero-sub {
            font-size: 18px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.92);
            max-width: 580px;
            margin-bottom: 32px;
        }

        .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            padding: 16px 34px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            transition: all 0.25s ease;
        }

        .btn-hero-solid {
            background: var(--accent);
            color: #1A2A3A;
            box-shadow: 0 8px 24px rgba(214, 158, 46, 0.35);
        }

        .btn-hero-solid:hover {
            background: #E2A93B;
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(214, 158, 46, 0.4);
        }

        .btn-hero-ghost {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: #fff;
            backdrop-filter: blur(4px);
        }

        .btn-hero-ghost:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }

        .hero-meta-strip {
            position: absolute;
            bottom: -28px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(255, 255, 255, 0.95);
            border-radius: 16px;
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.12);
            padding: 18px 34px;
            display: flex;
            align-items: center;
            gap: 30px;
            z-index: 2;
            width: max-content;
            max-width: calc(100% - 40px);
            backdrop-filter: blur(8px);
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .hero-meta-item i {
            color: var(--accent);
            font-size: 17px;
        }

        /* ===== 区块标题 ===== */
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .section-title::before {
            content: '';
            width: 12px;
            height: 24px;
            background: var(--accent);
            border-radius: 4px;
            flex-shrink: 0;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        .section-head {
            margin-bottom: 44px;
        }

        /* ===== 卖点卡片 ===== */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 30px 28px;
            transition: all 0.3s ease;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(43, 108, 176, 0.3);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
        }

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

        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 16px;
            transition: gap 0.25s ease;
        }

        .feature-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ===== 赛事类型卡片 ===== */
        .sport-card {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
        }

        .sport-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(43, 108, 176, 0.3);
        }

        .sport-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-bottom: 1px solid var(--border);
        }

        .sport-card-body {
            padding: 22px 24px 26px;
        }

        .sport-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .sport-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 14px;
            line-height: 1.7;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
        }

        .tag-accent {
            background: rgba(214, 158, 46, 0.12);
            color: #B7791F;
        }

        /* ===== 深色数据带 ===== */
        .stats-section {
            background: linear-gradient(135deg, #1A365D 0%, #2B6CB0 100%);
            padding: 72px 0;
            margin: 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item {
            position: relative;
            padding: 10px 16px;
        }

        .stat-item:not(:last-child)::after {
            content: '';
            position: absolute;
            right: -16px;
            top: 20%;
            height: 60%;
            width: 1px;
            background: rgba(255, 255, 255, 0.18);
        }

        .stat-icon {
            color: var(--accent);
            font-size: 22px;
            margin-bottom: 10px;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
        }

        .stat-number span {
            color: #F6E05E;
            font-size: 20px;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 6px;
        }

        /* ===== 步骤条 ===== */
        .steps-section {
            padding: 80px 0;
            background: var(--bg);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
            margin-bottom: 48px;
        }

        .step-card {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            box-shadow: var(--shadow-card);
            padding: 32px 24px 28px;
            text-align: center;
            transition: all 0.3s ease;
        }

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

        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.25);
        }

        .step-card.done .step-num {
            background: var(--accent);
            box-shadow: 0 4px 12px rgba(214, 158, 46, 0.28);
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .steps-cta {
            text-align: center;
        }

        /* ===== 按钮通用 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #ffffff;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: 0 4px 14px rgba(43, 108, 176, 0.22);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(43, 108, 176, 0.3);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.25s ease;
        }

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

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 18px 40px;
            background: var(--accent);
            color: #1A2A3A;
            border-radius: 12px;
            font-size: 17px;
            font-weight: 700;
            box-shadow: 0 10px 28px rgba(214, 158, 46, 0.35);
            transition: all 0.25s ease;
        }

        .btn-cta:hover {
            background: #E2A93B;
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(214, 158, 46, 0.42);
        }

        /* ===== 最新动态 ===== */
        .news-section {
            padding: 80px 0;
        }

        .news-card-item {
            display: flex;
            align-items: center;
            gap: 22px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            box-shadow: var(--shadow-card);
            padding: 18px 22px;
            margin-bottom: 16px;
            transition: all 0.25s ease;
        }

        .news-card-item:hover {
            border-color: rgba(43, 108, 176, 0.3);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }

        .news-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
            flex-shrink: 0;
        }

        .news-card-content {
            flex: 1;
            min-width: 0;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            margin-bottom: 4px;
        }

        .news-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-faint);
        }

        .news-card-meta .tag {
            margin-left: 0;
        }

        .empty-state {
            text-align: center;
            padding: 56px 24px;
            background: var(--card);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            color: var(--text-faint);
        }

        .empty-state i {
            font-size: 38px;
            margin-bottom: 12px;
            color: var(--border);
        }

        .empty-state p {
            font-size: 15px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0;
            background: #EDF2F7;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: box-shadow 0.25s ease;
        }

        .faq-item:hover {
            box-shadow: var(--shadow-card);
        }

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

        .faq-question i {
            color: var(--primary);
            font-size: 18px;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 0;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 90px 0;
            background: linear-gradient(135deg, #1A365D, #2B6CB0);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
        }

        .cta-title {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin-bottom: 32px;
            line-height: 1.7;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #F1F5F9;
            border-top: 1px solid #E2E8F0;
            padding: 56px 0 24px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-top: 14px;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-links a i {
            font-size: 10px;
            color: var(--text-faint);
        }

        .footer-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 22px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 14px;
            color: var(--text-faint);
        }

        .domain-text {
            color: var(--text-secondary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-panel {
                padding: 12px 20px;
            }

            .nav-links {
                gap: 6px;
            }

            .nav-icon-card {
                padding: 8px 12px;
                font-size: 13px;
            }

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

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 16px;
            }

            .stat-item:nth-child(2n)::after {
                display: none;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-panel {
                flex-wrap: wrap;
                position: sticky;
                padding: 10px 16px;
            }

            .nav-logo {
                font-size: 20px;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #ffffff;
                border-radius: 12px;
                padding: 14px;
                gap: 8px;
                box-shadow: var(--shadow-card);
                order: 3;
            }

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

            .nav-icon-card {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 16px;
            }

            .nav-cta {
                margin-left: auto;
            }

            .menu-btn {
                display: inline-flex;
            }

            .hero-section {
                padding: 60px 0 80px;
            }

            .hero-title {
                font-size: 28px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .hero-meta-strip {
                flex-wrap: wrap;
                gap: 10px;
                padding: 14px 18px;
                bottom: -40px;
            }

            .btn-hero {
                padding: 13px 24px;
                font-size: 15px;
            }

            .section-title {
                font-size: 24px;
            }

            .stats-section {
                padding: 56px 0;
            }

            .stat-number {
                font-size: 30px;
            }

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

            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }

            .cta-title {
                font-size: 26px;
            }

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

            .news-card-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .news-card-meta {
                width: 100%;
                justify-content: space-between;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .nav-panel {
                padding: 8px 12px;
            }

            .nav-logo {
                font-size: 18px;
            }

            .nav-cta .btn-primary {
                padding: 9px 16px;
                font-size: 13px;
            }

            .hero-title {
                font-size: 24px;
            }

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

            .hero-meta-strip {
                display: none;
            }

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

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

            .btn-hero {
                width: 100%;
                justify-content: center;
                margin-bottom: 10px;
            }

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

            .section-title {
                font-size: 21px;
            }
        }

/* roulang page: article */
:root {
  --primary: #2B6CB0;
  --primary-dark: #1E5A9E;
  --primary-light: #E8F1FA;
  --accent: #D69E2E;
  --bg: #F7FAFC;
  --card: #FFFFFF;
  --text: #1A2A3A;
  --text-secondary: #5A6E7E;
  --text-muted: #9AAAB8;
  --border: #E2E8F0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.04);
  --shadow-hover: 0 12px 24px rgba(0,0,0,0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

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

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

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 100;
  padding: 0 20px;
}

.nav-panel {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 20px;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
}

.nav-logo i {
  font-size: 26px;
  color: var(--accent);
  background: var(--primary-light);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  justify-content: center;
}

.nav-icon-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 72px;
  padding: 8px 6px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: all 0.25s ease;
}

.nav-icon-card i {
  font-size: 20px;
  color: var(--primary);
  transition: transform 0.2s ease;
}

.nav-icon-card:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-icon-card:hover i {
  transform: translateY(-2px);
}

.nav-icon-card.active {
  background: var(--primary);
  color: #fff;
  border-bottom-color: transparent;
}

.nav-icon-card.active i {
  color: #fff;
}

.nav-cta {
  flex-shrink: 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.25s ease;
  box-shadow: 0 2px 8px rgba(43, 108, 176, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(43, 108, 176, 0.35);
}

.btn-primary:active {
  transform: scale(0.98);
}

.menu-btn {
  display: none;
  background: var(--primary-light);
  color: var(--primary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

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

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

.breadcrumb .bc-sep {
  font-size: 12px;
  color: var(--text-muted);
}

.breadcrumb .bc-current {
  color: var(--primary);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 320px;
}

/* ===== Article Hero ===== */
.article-hero {
  padding: 64px 0 48px;
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg) 100%);
}

.article-hero .hero-inner {
  max-width: 840px;
  margin: 0 auto;
}

.article-hero h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: var(--text-secondary);
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta i {
  color: var(--primary);
  font-size: 14px;
}

/* ===== Article Body ===== */
.article-body {
  padding: 48px 0 64px;
  background: var(--card);
}

.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  margin: 36px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin: 28px 0 12px;
}

.article-content img {
  border-radius: 8px;
  margin: 24px 0;
  box-shadow: var(--shadow-card);
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-light);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: normal;
}

.article-content ul,
.article-content ol {
  margin: 16px 0 20px;
  padding-left: 24px;
  color: var(--text);
}

.article-content li {
  margin-bottom: 8px;
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px dashed var(--primary);
}

.article-content a:hover {
  border-bottom-style: solid;
}

.article-content strong {
  font-weight: 700;
  color: var(--text);
}

/* ===== Not Found ===== */
.not-found {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 20px;
}

.not-found i {
  font-size: 56px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.not-found h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.not-found p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ===== Article CTA ===== */
.article-cta {
  padding: 64px 0;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  text-align: center;
  color: #fff;
}

.article-cta h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.article-cta p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 16px 36px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 16px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 20px rgba(214, 158, 46, 0.35);
}

.btn-accent:hover {
  background: #c78c1c;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(214, 158, 46, 0.45);
}

.btn-accent:active {
  transform: scale(0.98);
}

/* ===== Related Section ===== */
.related-section {
  padding: 64px 0 80px;
  background: var(--bg);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 36px;
}

.section-head h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}

.more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  transition: gap 0.2s ease;
}

.more-link:hover {
  gap: 10px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.related-card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(43, 108, 176, 0.3);
}

.related-cover {
  height: 180px;
  overflow: hidden;
}

.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

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

.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.related-body .related-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 20px;
  align-self: flex-start;
  margin-top: auto;
}

.back-row {
  text-align: center;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  color: var(--primary);
  border: 1px solid var(--primary);
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.25s ease;
}

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

.btn-outline:active {
  transform: scale(0.98);
}

/* ===== Footer ===== */
.site-footer {
  background: #12202E;
  color: #94A3B8;
  padding-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer-brand .nav-logo i {
  background: rgba(255, 255, 255, 0.12);
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
}

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

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #94A3B8;
  transition: all 0.2s ease;
}

.footer-links a i {
  font-size: 12px;
  color: var(--primary);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #64748B;
}

.footer-bottom .domain-text {
  color: #94A3B8;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 767px) {
  .site-header {
    top: 8px;
    padding: 0 12px;
  }

  .nav-panel {
    padding: 10px 14px;
    gap: 12px;
  }

  .nav-logo {
    font-size: 18px;
  }

  .nav-logo i {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    padding: 16px;
    flex-direction: column;
    gap: 8px;
    z-index: 200;
  }

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

  .nav-icon-card {
    flex-direction: row;
    width: 100%;
    justify-content: flex-start;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border-bottom: none;
    font-size: 15px;
  }

  .nav-icon-card i {
    font-size: 20px;
  }

  .nav-cta {
    display: none;
  }

  .menu-btn {
    display: flex;
    margin-left: auto;
  }

  .article-hero {
    padding: 40px 0 32px;
  }

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

  .article-meta {
    gap: 12px;
    font-size: 13px;
  }

  .article-content p {
    font-size: 15px;
    line-height: 1.8;
  }

  .article-content h2 {
    font-size: 20px;
  }

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

  .related-cover {
    height: 160px;
  }

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

  .article-cta h2 {
    font-size: 22px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .breadcrumb .bc-current {
    max-width: 180px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

/* roulang page: category3 */
:root {
            --primary: #2B6CB0;
            --primary-light: #E8F1FA;
            --primary-dark: #1E5A9E;
            --accent: #D69E2E;
            --accent-hover: #B8860B;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --text: #1A2A3A;
            --text-secondary: #5A6E7E;
            --text-muted: #9AAAB8;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 6px 16px rgba(0,0,0,0.04);
            --shadow-hover: 0 12px 24px rgba(0,0,0,0.08);
            --container: 1200px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== 顶部导航 ===== */
        .nav-panel {
            position: fixed;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            width: calc(100% - 32px);
            max-width: 1240px;
            display: flex;
            align-items: center;
            gap: 20px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 12px 24px;
            box-shadow: 0 4px 20px rgba(43, 108, 176, 0.08);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: 1px;
        }
        .nav-logo i {
            font-size: 26px;
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-icon-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            min-width: 68px;
            padding: 8px 12px;
            border-radius: 12px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            transition: all 0.3s ease;
        }
        .nav-icon-card i {
            font-size: 18px;
        }
        .nav-icon-card:hover {
            background: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            border-bottom-color: var(--primary);
        }
        .nav-icon-card.active {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(43, 108, 176, 0.2);
            box-shadow: 0 2px 8px rgba(43, 108, 176, 0.1);
        }
        .nav-cta {
            margin-left: auto;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff !important;
            padding: 12px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
            border: none;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.2);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 108, 176, 0.3);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-white-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            color: #fff !important;
            border: 1px solid rgba(255, 255, 255, 0.6);
            padding: 12px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            backdrop-filter: blur(4px);
            transition: all 0.3s ease;
        }
        .btn-white-outline:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .menu-btn {
            display: none;
            background: none;
            border: 1px solid var(--border);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            margin-top: 78px;
            border-radius: 0;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to right, rgba(15, 35, 60, 0.88) 0%, rgba(43, 108, 176, 0.55) 55%, rgba(43, 108, 176, 0.15) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            padding: 80px 0 100px;
        }
        .hero h1 {
            font-size: 42px;
            line-height: 1.2;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero h1 span {
            color: #FFD479;
        }
        .hero p {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 32px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-scroll {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
            color: #fff;
            padding: 10px 20px;
            border-radius: 30px;
            font-size: 13px;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 2px;
        }
        /* ===== 板块标题 ===== */
        .section {
            padding: 88px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.35;
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 18px;
        }
        .section-title::before {
            content: '';
            width: 10px;
            height: 28px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
        }
        /* ===== 卡片 ===== */
        .card-icon {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
        }
        .card-icon:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(43, 108, 176, 0.3);
        }
        .card-icon .icon-wrap {
            width: 54px;
            height: 54px;
            border-radius: 14px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 18px;
            transition: all 0.3s ease;
        }
        .card-icon:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .card-icon h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .card-icon p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .card-link {
            font-size: 14px;
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s ease;
        }
        .card-link:hover {
            gap: 10px;
        }
        /* ===== 场景卡片 ===== */
        .scene-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 22px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: all 0.3s ease;
        }
        .scene-card:hover {
            background: #fff;
            box-shadow: var(--shadow-card);
            border-color: rgba(43, 108, 176, 0.25);
        }
        .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .scene-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .scene-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        /* ===== 步骤 ===== */
        .step-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-num.done {
            background: var(--accent);
        }
        .step-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .step-connector {
            position: absolute;
            top: 50px;
            left: calc(50% + 45px);
            width: calc(100% - 40px);
            border-top: 2px dashed #CBD5E0;
            z-index: 0;
        }
        /* ===== 内容卡片 ===== */
        .content-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .img-wrap {
            height: 180px;
            overflow: hidden;
            background: var(--primary-light);
            position: relative;
        }
        .content-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card:hover .img-wrap img {
            transform: scale(1.05);
        }
        .content-card .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(43, 108, 176, 0.9);
            color: #fff;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 600;
        }
        .content-card .card-body {
            padding: 20px;
        }
        .content-card h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text);
        }
        .content-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .content-card .meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid #f1f5f9;
            padding-top: 12px;
        }
        /* ===== 深色数字带 ===== */
        .stats-band {
            background: linear-gradient(160deg, #1A365D 0%, #2B6CB0 100%);
            border-radius: 24px;
            padding: 56px 48px;
            color: #fff;
        }
        .stat-item {
            text-align: center;
            padding: 20px 10px;
        }
        .stat-item .stat-num {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .stat-item .stat-num i {
            color: var(--accent);
            font-size: 30px;
            margin-right: 6px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 10px;
            letter-spacing: 1px;
        }
        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: rgba(43, 108, 176, 0.3);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
        }
        .faq-question .icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            display: none;
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: 24px;
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::after {
            content: '\f70e';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -20px;
            bottom: -30px;
            font-size: 180px;
            opacity: 0.06;
            transform: rotate(-15deg);
        }
        .cta-block h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 16px;
            opacity: 0.85;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            padding: 16px 36px;
            border-radius: 12px;
            transition: all 0.3s ease;
            border: none;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }
        .btn-accent:hover {
            background: #c88a12;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(0, 0, 0, 0.2);
        }
        .btn-accent:active {
            transform: scale(0.98);
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: #12202E;
            color: #94A3B8;
            padding: 60px 0 0;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-brand .nav-logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .nav-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: #94A3B8;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.3s ease;
        }
        .footer-links a i {
            font-size: 11px;
            color: var(--primary);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact p {
            font-size: 14px;
            color: #94A3B8;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-contact p i {
            color: var(--accent);
            width: 18px;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 14px;
            color: #64748B;
        }
        .footer-bottom .domain-text {
            color: #94A3B8;
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-panel {
                flex-wrap: wrap;
                padding: 12px 16px;
                gap: 12px;
            }
            .nav-links {
                order: 3;
                flex-basis: 100%;
                justify-content: flex-start;
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .nav-icon-card {
                min-width: 72px;
                flex-shrink: 0;
            }
            .nav-cta {
                margin-left: auto;
            }
            .menu-btn {
                display: none;
            }
            .hero {
                margin-top: 140px;
            }
            .step-connector {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            .hero {
                min-height: 480px;
                margin-top: 120px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .stats-band {
                padding: 40px 24px;
                border-radius: 18px;
            }
            .stat-item .stat-num {
                font-size: 32px;
            }
            .cta-block {
                padding: 48px 24px;
            }
            .cta-block h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-btns {
                flex-direction: column;
            }
            .hero-btns .btn-primary,
            .hero-btns .btn-white-outline {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-panel {
                top: 8px;
                border-radius: 14px;
                padding: 10px 14px;
            }
            .nav-links {
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .nav-links::-webkit-scrollbar {
                display: none;
            }
            .nav-cta .btn-primary {
                padding: 10px 16px;
                font-size: 13px;
                border-radius: 8px;
            }
            .nav-cta .btn-primary i {
                display: none;
            }
            .hero {
                margin-top: 110px;
                min-height: 440px;
            }
            .hero-content {
                padding: 60px 0 80px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero p {
                font-size: 15px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 20px;
                gap: 10px;
            }
            .stats-band {
                padding: 32px 16px;
            }
            .stat-item .stat-num {
                font-size: 28px;
            }
            .cta-block {
                padding: 40px 20px;
            }
            .btn-accent {
                width: 100%;
                justify-content: center;
                padding: 14px 20px;
                font-size: 15px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2B6CB0;
            --primary-dark: #1E5A9E;
            --primary-light: #E8F1FA;
            --accent: #D69E2E;
            --bg: #F7FAFC;
            --card: #FFFFFF;
            --text: #1A2A3A;
            --text-secondary: #5A6E7E;
            --text-muted: #9AAAB8;
            --border: #E2E8F0;
            --radius: 16px;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 6px 16px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.08);
            --shadow-btn: 0 4px 12px rgba(43, 108, 176, 0.3);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 12px;
            z-index: 100;
            padding: 0 16px;
        }
        .nav-panel {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border-radius: 16px;
            padding: 12px 20px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            border: 1px solid var(--border);
            background: linear-gradient(120deg, #ffffff 80%, #E8F1FA 100%);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .nav-logo i {
            font-size: 22px;
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: 1;
            justify-content: center;
            flex-wrap: wrap;
        }
        .nav-icon-card {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.25s ease;
            background: transparent;
            border: 1px solid transparent;
        }
        .nav-icon-card i {
            font-size: 15px;
            color: var(--primary);
            opacity: 0.7;
            transition: opacity 0.25s;
        }
        .nav-icon-card:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(43, 108, 176, 0.15);
            transform: translateY(-2px);
        }
        .nav-icon-card:hover i {
            opacity: 1;
        }
        .nav-icon-card.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.25);
        }
        .nav-icon-card.active i {
            color: #fff;
            opacity: 1;
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff !important;
            padding: 10px 22px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-btn);
            border: none;
            line-height: 1.4;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(43, 108, 176, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .menu-btn:hover {
            background: #d6e4f5;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(120deg, #1A365D 0%, #2B6CB0 70%);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            margin-top: -76px;
            padding-top: 120px;
            padding-bottom: 100px;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 54, 93, 0.85) 0%, rgba(43, 108, 176, 0.55) 55%, rgba(13, 20, 30, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 100px;
            margin-bottom: 24px;
        }
        .hero-badge i {
            color: #F6E05E;
        }
        .hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .hero-content .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 30px;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-hero-main {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #1A365D !important;
            padding: 16px 32px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(214, 158, 46, 0.4);
        }
        .btn-hero-main:hover {
            background: #f0b840;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(214, 158, 46, 0.5);
        }
        .btn-hero-main:active {
            transform: scale(0.98);
        }
        .btn-hero-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff !important;
            padding: 16px 32px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.25s ease;
        }
        .btn-hero-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-hero-ghost:active {
            transform: scale(0.98);
        }

        /* ===== 通用区块 ===== */
        .section-pad {
            padding: 80px 0;
        }
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 50px;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 100px;
            margin-bottom: 14px;
            letter-spacing: 1px;
        }
        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
            color: var(--text);
            position: relative;
            display: inline-block;
            padding-left: 18px;
        }
        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 60%;
            background: var(--primary);
            border-radius: 4px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.7;
        }

        /* ===== 特色卡片 ===== */
        .features-section {
            background: var(--card);
            padding: 80px 0;
        }
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 30px 24px;
            text-align: center;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(43, 108, 176, 0.3);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            transition: all 0.3s ease;
        }
        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .feature-link {
            display: inline-block;
            margin-top: 14px;
            font-size: 14px;
            color: var(--primary);
            font-weight: 500;
            transition: color 0.2s;
        }
        .feature-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        /* ===== 内容卡片 ===== */
        .content-section {
            background: var(--primary-light);
            background: linear-gradient(170deg, #E8F1FA 0%, #F0F5FA 60%, #E8F1FA 100%);
            padding: 80px 0;
        }
        .content-card {
            background: var(--card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(43, 108, 176, 0.3);
        }
        .content-image {
            position: relative;
            height: 200px;
            overflow: hidden;
            background: var(--primary-light);
        }
        .content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .content-card:hover .content-image img {
            transform: scale(1.04);
        }
        .content-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(26, 42, 58, 0.75);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 100px;
            backdrop-filter: blur(4px);
        }
        .content-body {
            padding: 22px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .content-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }
        .content-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid #f0f2f5;
            padding-top: 14px;
        }
        .content-meta a {
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: color 0.2s;
        }
        .content-meta a:hover {
            color: var(--primary-dark);
        }

        /* ===== 步骤条 ===== */
        .steps-section {
            background: var(--card);
            padding: 80px 0;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }
        .step-item {
            text-align: center;
            padding: 30px 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: #fff;
            position: relative;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            margin: 0 auto 16px;
            background: var(--primary);
            color: #fff;
            font-size: 17px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.25);
        }
        .step-item.done .step-num {
            background: var(--accent);
            box-shadow: 0 4px 12px rgba(214, 158, 46, 0.3);
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .step-item::after {
            content: "";
            position: absolute;
            top: 50%;
            right: -30px;
            width: 30px;
            border-top: 2px dashed var(--border);
            z-index: 0;
        }
        .step-item:last-child::after {
            display: none;
        }
        .steps-cta {
            text-align: center;
            margin-top: 48px;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #1A365D !important;
            padding: 16px 40px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 700;
            transition: all 0.25s ease;
            box-shadow: 0 4px 16px rgba(214, 158, 46, 0.35);
        }
        .btn-accent:hover {
            background: #f0b840;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(214, 158, 46, 0.45);
        }
        .btn-accent:active {
            transform: scale(0.98);
        }

        /* ===== 数据 ===== */
        .stats-section {
            background: linear-gradient(135deg, #1A365D 0%, #2B6CB0 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            padding: 20px 10px;
        }
        .stat-item .stat-icon {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-item .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }
        .stat-divider {
            border-left: 1px solid rgba(255, 255, 255, 0.12);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #F1F5F9;
            padding: 80px 0;
        }
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 12px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }
        .faq-item.active {
            box-shadow: var(--shadow-card);
            border-color: rgba(43, 108, 176, 0.25);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            background: #fff;
            transition: background 0.2s;
            width: 100%;
            text-align: left;
            gap: 14px;
        }
        .faq-question:hover {
            background: #fafbfc;
        }
        .faq-question .faq-icon-wrap {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }
        .faq-item.active .faq-icon-wrap {
            background: var(--primary);
        }
        .faq-item.active .faq-icon-wrap i {
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-question .faq-icon-wrap i {
            color: var(--primary);
            font-size: 14px;
            transition: all 0.3s ease;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: #fafbfc;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            border-top: 1px solid #f0f2f5;
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--card);
            padding: 80px 0;
        }
        .cta-panel {
            max-width: 800px;
            margin: 0 auto;
            background: linear-gradient(145deg, #E8F1FA 0%, #f5f9fc 100%);
            border-radius: 24px;
            padding: 60px 40px;
            text-align: center;
            border: 1px solid rgba(43, 108, 176, 0.12);
            box-shadow: var(--shadow-card);
        }
        .cta-panel h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .cta-panel p {
            font-size: 17px;
            color: var(--text-secondary);
            margin-bottom: 30px;
        }
        .cta-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff !important;
            padding: 16px 36px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: var(--shadow-btn);
        }
        .btn-cta-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(43, 108, 176, 0.4);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: #fff;
            border: 1px solid var(--primary);
            color: var(--primary) !important;
            padding: 16px 36px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            transition: all 0.25s ease;
        }
        .btn-cta-outline:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-cta-outline:active {
            transform: scale(0.98);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #12202E;
            color: #94A3B8;
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .nav-logo {
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .nav-logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
            max-width: 340px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #94A3B8;
            transition: color 0.2s, transform 0.2s;
        }
        .footer-links a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-links a i {
            font-size: 11px;
            color: var(--accent);
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 10px;
            color: #94A3B8;
        }
        .footer-contact p i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: #6b7f91;
        }
        .footer-bottom .domain-text {
            color: #8ba3b8;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .step-item::after {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 68px;
                left: 20px;
                right: 20px;
                background: #fff;
                border-radius: 16px;
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                border: 1px solid var(--border);
                gap: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .menu-btn {
                display: flex;
                margin-left: auto;
            }
            .nav-cta {
                display: none;
            }
            .nav-panel {
                padding: 10px 16px;
            }
            .hero-section {
                min-height: 480px;
                padding-top: 100px;
                padding-bottom: 60px;
                margin-top: -68px;
            }
            .hero-content h1 {
                font-size: 32px;
            }
            .hero-content .hero-desc {
                font-size: 16px;
            }
            .section-pad {
                padding: 60px 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-divider {
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .cta-panel {
                padding: 40px 24px;
            }
            .cta-panel h2 {
                font-size: 26px;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .features-section,
            .content-section,
            .steps-section,
            .stats-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .hero-btns {
                flex-direction: column;
            }
            .btn-hero-main,
            .btn-hero-ghost {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 30px;
            }
            .footer-bottom {
                padding: 16px 24px;
            }
        }
        @media (max-width: 520px) {
            .nav-links {
                left: 12px;
                right: 12px;
            }
            .stat-item {
                padding: 14px 6px;
            }
        }