/* roulang page: index */
:root {
    --brand: #e11d48;
    --brand-dark: #be123c;
    --brand-light: #fda4af;
    --ink: #0f172a;
    --ink-soft: #1e293b;
    --text: #334155;
    --text-muted: #64748b;
    --bg: #f8fafc;
    --bg-alt: #f1f5f9;
    --border: #e2e8f0;
    --card-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --card-shadow-hover: 0 16px 48px rgba(15, 23, 42, 0.13);
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ========= Header ========= */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226,232,240,0.8);
    transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 30px rgba(15,23,42,0.07); }
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: 1px;
    white-space: nowrap;
}
.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--brand), #f59e0b);
    border-radius: 11px;
    color: #fff;
    font-size: 15px;
    box-shadow: 0 4px 14px rgba(225,29,72,0.3);
    flex-shrink: 0;
}
.main-nav { display: flex; align-items: center; gap: 2px; }
.nav-link {
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}
.nav-link:hover { color: var(--brand); background: rgba(225,29,72,0.06); }
.nav-link.active { color: var(--brand); font-weight: 600; }
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--brand);
    border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-btn, .menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--text);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    transition: var(--transition);
    font-size: 15px;
}
.search-btn:hover, .menu-toggle:hover {
    background: var(--brand);
    color: #fff;
    border-color: var(--brand);
}
.menu-toggle { display: none; }

/* ========= Mobile Menu ========= */
.mobile-menu {
    display: none;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 12px 24px 20px;
    box-shadow: 0 12px 30px rgba(15,23,42,0.08);
}
.mobile-menu.open { display: block; }
.mobile-link {
    display: block;
    padding: 13px 14px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    border-radius: 10px;
    transition: var(--transition);
}
.mobile-link:hover { background: rgba(225,29,72,0.06); color: var(--brand); }
.mobile-link.active { color: var(--brand); font-weight: 700; background: rgba(225,29,72,0.06); }

/* ========= Buttons ========= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 13px 30px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    line-height: 1.4;
}
.btn-sm { padding: 8px 18px; font-size: 14px; border-radius: 10px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 4px 18px rgba(225,29,72,0.3); }
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(225,29,72,0.4); }
.btn-outline { border-color: var(--border); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); box-shadow: 0 10px 28px rgba(15,23,42,0.08); }
.btn:focus-visible, .nav-link:focus-visible, .search-btn:focus-visible, .menu-toggle:focus-visible {
    outline: 3px solid rgba(225,29,72,0.35);
    outline-offset: 2px;
}

/* ========= Sections ========= */
.section { padding: 92px 0; }
.section-alt { background: #fff; }
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: rgba(225,29,72,0.08);
    color: var(--brand);
    font-size: 13px;
    font-weight: 600;
    border-radius: 22px;
    letter-spacing: 1px;
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 52px;
    flex-wrap: wrap;
}
.section-head h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--ink);
    line-height: 1.25;
    margin-top: 12px;
    letter-spacing: -0.5px;
}
.section-head .section-desc { max-width: 430px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.section-more {
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    white-space: nowrap;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}
.section-more:hover { gap: 13px; border-bottom-color: var(--brand); }

/* ========= Hero ========= */
.hero {
    position: relative;
    background-image: linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.65) 55%, rgba(225,29,72,0.35) 100%), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    padding: 110px 0 110px;
    overflow: hidden;
    color: #fff;
}
.hero::before {
    content: '';
    position: absolute;
    top: -160px;
    right: -160px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(225,29,72,0.25) 0%, transparent 70%);
    pointer-events: none;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 24px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    backdrop-filter: blur(8px);
    margin-bottom: 26px;
}
.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 7px rgba(34,197,94,0); }
}
.hero h1 {
    font-size: 50px;
    font-weight: 900;
    line-height: 1.18;
    color: #fff;
    letter-spacing: -1px;
    margin-bottom: 22px;
}
.hero h1 .highlight { color: #fb7185; }
.hero .hero-text {
    font-size: 16px;
    color: rgba(255,255,255,0.82);
    line-height: 1.9;
    max-width: 520px;
    margin-bottom: 38px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 52px; }
.btn-hero-primary { background: #fff; color: var(--brand); }
.btn-hero-primary:hover { background: #f1f5f9; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.18); }
.btn-hero-outline { border-color: rgba(255,255,255,0.45); color: #fff; }
.btn-hero-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }
.hero-stats {
    display: flex;
    gap: 44px;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 30px;
}
.stat-item strong { display: block; font-size: 30px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-item span { font-size: 13px; color: rgba(255,255,255,0.6); }
.hero-visual { position: relative; }
.hero-img-wrapper {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0,0,0,0.35);
    transform: rotate(1.2deg);
    border: 1px solid rgba(255,255,255,0.15);
}
.hero-img-wrapper img { width: 100%; height: 460px; object-fit: cover; }
.hero-img-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 28px 24px;
    background: linear-gradient(to top, rgba(15,23,42,0.9), transparent);
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}
.live-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(225,29,72,0.95);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
}
.live-badge i { font-size: 7px; animation: pulse-dot 1.5s infinite; }

/* ========= Intro ========= */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 72px;
    align-items: center;
}
.intro-images { position: relative; padding-right: 40px; }
.intro-main-img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    border-radius: 24px;
    box-shadow: var(--card-shadow-hover);
}
.intro-sub-img {
    position: absolute;
    width: 46%;
    height: 210px;
    object-fit: cover;
    border-radius: 18px;
    border: 5px solid #fff;
    box-shadow: var(--card-shadow);
    right: 0;
    bottom: -36px;
}
.intro-content h2 { font-size: 34px; font-weight: 800; color: var(--ink); line-height: 1.3; margin: 14px 0 22px; }
.intro-content p { color: var(--text); font-size: 15px; line-height: 1.9; margin-bottom: 18px; }
.intro-list { list-style: none; margin: 26px 0 34px; display: grid; gap: 14px; }
.intro-list li { display: flex; align-items: center; gap: 12px; font-size: 15px; font-weight: 500; color: var(--ink-soft); }
.intro-list li i { color: var(--brand); font-size: 17px; }

/* ========= Categories ========= */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.category-card {
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
}
.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: rgba(225,29,72,0.25);
}
.category-card-img { position: relative; overflow: hidden; height: 220px; }
.category-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.category-card:hover .category-card-img img { transform: scale(1.06); }
.category-card-img::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 100px;
    background: linear-gradient(to top, rgba(15,23,42,0.35), transparent);
}
.category-card-body { padding: 28px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.category-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(225,29,72,0.1);
    color: var(--brand);
    font-size: 19px;
    margin-bottom: 18px;
}
.category-card h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.category-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; flex: 1; margin-bottom: 20px; }
.category-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}
.category-link i { transition: transform 0.3s ease; }
.category-card:hover .category-link i { transform: translateX(5px); }

/* ========= Latest News ========= */
.latest-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: stretch;
}
.latest-featured {
    background: #fff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}
.latest-featured:hover { box-shadow: var(--card-shadow-hover); transform: translateY(-4px); }
.latest-featured-img { position: relative; height: 280px; overflow: hidden; }
.latest-featured-img img { width: 100%; height: 100%; object-fit: cover; }
.latest-featured-img .badge {
    position: absolute;
    top: 18px;
    left: 18px;
    background: #fff;
    color: var(--brand);
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(15,23,42,0.12);
}
.latest-featured-body { padding: 28px; flex: 1; display: flex; flex-direction: column; }
.meta { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.meta .tag {
    background: rgba(225,29,72,0.1);
    color: var(--brand);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 16px;
}
.meta .date { font-size: 13px; color: var(--text-muted); }
.latest-featured-body h3 { font-size: 22px; font-weight: 700; color: var(--ink); line-height: 1.4; margin-bottom: 12px; }
.latest-featured-body p { font-size: 14px; color: var(--text-muted); line-height: 1.75; flex: 1; margin-bottom: 18px; }
.read-more {
    color: var(--brand);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}
.latest-featured:hover .read-more i { transform: translateX(5px); }
.latest-list { display: grid; gap: 14px; align-content: stretch; }
.latest-list-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: var(--transition);
    border-left: 4px solid var(--brand);
}
.latest-list-item:hover { box-shadow: var(--card-shadow); transform: translateX(4px); border-left-color: var(--brand-dark); }
.latest-list-item h4 { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 6px; line-height: 1.4; }
.latest-list-item p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.latest-list-item > i { color: var(--border); transition: var(--transition); flex-shrink: 0; }
.latest-list-item:hover > i { color: var(--brand); transform: translateX(4px); }
.empty-tip {
    grid-column: 1 / -1;
    text-align: center;
    padding: 70px 30px;
    background: #fff;
    border-radius: 20px;
    border: 1px dashed var(--border);
    color: var(--text-muted);
    font-size: 16px;
}

/* ========= Stats Dark Section ========= */
.stats-section {
    background-image: linear-gradient(rgba(15,23,42,0.88), rgba(15,23,42,0.94)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 90px 0;
    position: relative;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stats-card {
    text-align: center;
    padding: 36px 24px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    backdrop-filter: blur(8px);
    transition: var(--transition);
}
.stats-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-6px); }
.stats-card strong { display: block; font-size: 42px; font-weight: 900; color: #fff; line-height: 1.1; margin-bottom: 10px; }
.stats-card strong .accent { color: #fb7185; }
.stats-card span { font-size: 14px; color: rgba(255,255,255,0.65); }

/* ========= Features ========= */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
    background: #fff;
    border-radius: 22px;
    padding: 38px 32px;
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--brand), #f59e0b);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--card-shadow-hover); }
.feature-card .feature-num {
    font-size: 14px;
    font-weight: 700;
    color: var(--brand);
    letter-spacing: 1px;
    text-transform: uppercase;
    display: block;
    margin-bottom: 16px;
}
.feature-card .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: linear-gradient(135deg, rgba(225,29,72,0.12), rgba(245,158,11,0.12));
    color: var(--brand);
    margin-bottom: 20px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.feature-card .feature-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 14px;
    margin-top: 24px;
    box-shadow: 0 4px 12px rgba(15,23,42,0.08);
}

/* ========= FAQ ========= */
.faq-list { max-width: 900px; margin: 0 auto; display: grid; gap: 16px; }
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: rgba(225,29,72,0.25); box-shadow: var(--card-shadow); }
.faq-item summary {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
    transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--brand); }
.faq-item summary i {
    font-size: 14px;
    color: var(--text-muted);
    transition: var(--transition);
    flex-shrink: 0;
}
.faq-item[open] summary { color: var(--brand); border-bottom: 1px solid var(--border); }
.faq-item[open] summary i { transform: rotate(180deg); color: var(--brand); }
.faq-item .faq-answer { padding: 20px 28px 26px; font-size: 14px; color: var(--text); line-height: 1.85; background: rgba(248,250,252,0.5); }

/* ========= CTA ========= */
.cta-section {
    background-image: linear-gradient(135deg, rgba(225,29,72,0.92), rgba(190,18,60,0.85)), url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    padding: 100px 0;
}
.cta-inner { text-align: center; max-width: 680px; margin: 0 auto; }
.cta-inner h2 { font-size: 38px; font-weight: 800; color: #fff; line-height: 1.3; margin-bottom: 18px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); line-height: 1.8; margin-bottom: 38px; }
.cta-form {
    display: flex;
    gap: 12px;
    max-width: 520px;
    margin: 0 auto 18px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.28);
    border-radius: 16px;
    padding: 6px;
    backdrop-filter: blur(8px);
}
.cta-form input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 12px 18px;
    font-size: 15px;
    color: #fff;
    outline: none;
    min-width: 0;
}
.cta-form input::placeholder { color: rgba(255,255,255,0.65); }
.cta-form .btn {
    background: #fff;
    color: var(--brand);
    border-radius: 12px;
    white-space: nowrap;
    padding: 12px 28px;
}
.cta-form .btn:hover { background: #f1f5f9; transform: translateY(-2px); }
.form-note { font-size: 13px; color: rgba(255,255,255,0.6); display: flex; align-items: center; justify-content: center; gap: 6px; }
.form-note i { opacity: 0.8; }

/* ========= Footer ========= */
.site-footer { background: #0f172a; padding: 80px 0 0; color: rgba(255,255,255,0.65); }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
    gap: 48px;
    padding-bottom: 56px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand .logo .logo-icon { background: linear-gradient(135deg, var(--brand), #f59e0b); }
.footer-brand p { font-size: 14px; line-height: 1.85; max-width: 320px; }
.footer-links h4, .footer-contact h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.footer-links a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,0.55); transition: var(--transition); }
.footer-links a:hover { color: #fb7185; padding-left: 6px; }
.footer-contact p { font-size: 14px; line-height: 1.75; }
.footer-contact .email { color: #fb7185; margin-top: 12px; font-weight: 500; }
.social-icons { display: flex; gap: 12px; margin-top: 20px; }
.social-icons a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
    font-size: 15px;
}
.social-icons a:hover { background: var(--brand); color: #fff; border-color: var(--brand); transform: translateY(-3px); }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }

/* ========= Responsive ========= */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .hero h1 { font-size: 42px; }
    .hero-img-wrapper img { height: 380px; }
    .hero-stats { gap: 30px; }
    .categories-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .latest-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .container { padding: 0 20px; }
    .main-nav { display: none; }
    .header-actions .btn { display: none; }
    .menu-toggle { display: flex; }
    .mobile-menu { position: absolute; top: 72px; left: 0; right: 0; }
    .hero { padding: 80px 0; }
    .hero h1 { font-size: 36px; }
    .hero .hero-text { font-size: 15px; }
    .hero-stats { gap: 20px; flex-wrap: wrap; }
    .stat-item strong { font-size: 24px; }
    .intro-grid { grid-template-columns: 1fr; gap: 56px; }
    .intro-images { padding-right: 0; }
    .intro-sub-img { display: none; }
    .categories-grid { grid-template-columns: 1fr; }
    .section-head { flex-direction: column; align-items: flex-start; }
    .section-head h2 { font-size: 28px; }
    .section-head .section-desc { max-width: 100%; }
    .features-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr; gap: 16px; }
    .cta-inner h2 { font-size: 28px; }
    .cta-form { flex-direction: column; padding: 16px; }
    .cta-form .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-bottom { text-align: center; }
    .latest-list-item { padding: 18px; }
    .faq-item summary { padding: 18px 20px; font-size: 15px; }
}
@media (max-width: 520px) {
    .hero h1 { font-size: 30px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .stat-item strong { font-size: 22px; }
    .latest-featured-body { padding: 20px; }
    .latest-featured-body h3 { font-size: 18px; }
    .section-head h2 { font-size: 24px; }
    .hero-img-wrapper img { height: 300px; }
    .latest-featured-img { height: 220px; }
}

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --secondary: #1d3557;
            --secondary-light: #2f4b7c;
            --accent: #f4a261;
            --dark: #0b132b;
            --dark-2: #162447;
            --bg-light: #f6f8fb;
            --bg-white: #ffffff;
            --text-main: #1f2937;
            --text-weak: #6b7280;
            --border: #e5e7eb;
            --radius: 18px;
            --radius-sm: 10px;
            --shadow-sm: 0 1px 4px rgba(11, 19, 43, 0.06);
            --shadow-md: 0 8px 28px rgba(11, 19, 43, 0.08);
            --shadow-lg: 0 18px 50px rgba(11, 19, 43, 0.14);
            --container: 1200px;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            color: var(--text-main);
            background: var(--bg-white);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.25s ease;
        }

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

        input {
            font-family: inherit;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 2px 12px rgba(11, 19, 43, 0.04);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 22px;
            color: var(--secondary);
            white-space: nowrap;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            border-radius: 12px;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.25);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .nav-link {
            padding: 8px 18px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-main);
            transition: all 0.25s ease;
        }

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

        .nav-link.active {
            background: var(--secondary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(29, 53, 87, 0.28);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            position: relative;
        }

        .search-box input {
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 42px 0 18px;
            font-size: 14px;
            background: var(--bg-light);
            outline: none;
            transition: all 0.25s ease;
            width: 210px;
        }

        .search-box input:focus {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.12);
            width: 240px;
        }

        .search-box i {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            font-size: 14px;
            pointer-events: none;
        }

        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: #fff;
            font-size: 18px;
            color: var(--secondary);
            align-items: center;
            justify-content: center;
            transition: all 0.2s;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 15px;
            border: 2px solid transparent;
            transition: all 0.25s ease;
            line-height: 1.4;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.36);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(230, 57, 70, 0.3);
        }

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

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--secondary);
            box-shadow: 0 4px 16px rgba(11, 19, 43, 0.12);
        }

        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 19, 43, 0.18);
            color: var(--primary);
        }

        .btn-lg {
            padding: 16px 42px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            padding: 110px 0 100px;
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(11, 19, 43, 0.95) 15%, rgba(11, 19, 43, 0.75) 55%, rgba(230, 57, 70, 0.35) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(230, 57, 70, 0.22);
            color: #ffb9bd;
            font-size: 13px;
            font-weight: 700;
            border: 1px solid rgba(230, 57, 70, 0.4);
            margin-bottom: 22px;
            letter-spacing: 1px;
        }

        .hero-text h1 {
            font-size: 54px;
            line-height: 1.12;
            color: #fff;
            font-weight: 900;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .hero-text p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 540px;
            margin-bottom: 34px;
            line-height: 1.8;
        }

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

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius);
            padding: 26px 16px;
            text-align: center;
            transition: all 0.35s ease;
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.5);
        }

        .stat-num {
            display: block;
            font-size: 34px;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
        }

        .stat-label {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 6px;
        }

        /* ===== Section ===== */
        .section {
            padding: 96px 0;
        }

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

        .section-dark {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }

        .section-dark::before {
            content: "";
            position: absolute;
            top: -120px;
            right: -120px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.15);
            filter: blur(60px);
        }

        .section-head {
            max-width: 680px;
            margin: 0 auto 56px;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.3;
            letter-spacing: 1px;
        }

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

        .section-head.light h2 {
            color: #fff;
        }

        .section-head.light p {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Grid ===== */
        .grid {
            display: grid;
            gap: 28px;
        }

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

        .grid-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .grid-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        /* ===== Card ===== */
        .card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all 0.35s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: rgba(230, 57, 70, 0.25);
        }

        .card-cover {
            position: relative;
            height: 190px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .card:hover .card-cover img {
            transform: scale(1.06);
        }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--primary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 700;
            box-shadow: 0 4px 10px rgba(230, 57, 70, 0.3);
            z-index: 1;
        }

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

        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.4;
            margin-bottom: 10px;
            transition: color 0.25s;
        }

        .card:hover .card-body h3 {
            color: var(--primary);
        }

        .card-body p {
            color: var(--text-weak);
            font-size: 14px;
            margin-bottom: 16px;
            line-height: 1.65;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
            margin-top: auto;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .card-meta i {
            margin-right: 5px;
        }

        .card-meta a {
            color: var(--primary);
            font-weight: 600;
        }

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

        /* ===== Feature Card ===== */
        .feature-card {
            padding: 36px 28px;
            text-align: center;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: all 0.35s ease;
            height: 100%;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(230, 57, 70, 0.2);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: #fff;
            background: var(--secondary);
            box-shadow: 0 8px 20px rgba(29, 53, 87, 0.2);
        }

        .feature-card:nth-child(2) .feature-icon {
            background: var(--primary);
            box-shadow: 0 8px 20px rgba(230, 57, 70, 0.25);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: var(--accent);
            box-shadow: 0 8px 20px rgba(244, 162, 97, 0.28);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 10px;
        }

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

        /* ===== Sport Tags ===== */
        .sport-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .sport-tags a {
            padding: 11px 26px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 999px;
            color: rgba(255, 255, 255, 0.9);
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
        }

        .sport-tags a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(230, 57, 70, 0.35);
        }

        /* ===== Schedule ===== */
        .schedule-wrap {
            background: linear-gradient(135deg, var(--dark-2), var(--dark));
            border-radius: var(--radius);
            padding: 44px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-lg);
        }

        .schedule-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 22px 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.25s;
        }

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

        .schedule-item:hover {
            background: rgba(255, 255, 255, 0.03);
            border-radius: 12px;
        }

        .schedule-time {
            color: var(--accent);
            font-weight: 800;
            font-size: 18px;
            min-width: 100px;
            letter-spacing: 1px;
        }

        .schedule-info {
            flex: 1;
            color: #fff;
        }

        .schedule-info h4 {
            font-weight: 700;
            font-size: 17px;
        }

        .schedule-info p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            margin-top: 2px;
        }

        .schedule-league {
            background: rgba(255, 255, 255, 0.1);
            padding: 5px 16px;
            border-radius: 999px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.85);
            white-space: nowrap;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* ===== Topic Card ===== */
        .topic-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            min-height: 300px;
            height: 100%;
            box-shadow: var(--shadow-md);
        }

        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            transition: transform 0.6s ease;
        }

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

        .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 19, 43, 0.94) 10%, rgba(11, 19, 43, 0.3) 60%, rgba(11, 19, 43, 0.05) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 32px;
        }

        .topic-overlay .topic-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(230, 57, 70, 0.85);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 14px;
            align-self: flex-start;
        }

        .topic-overlay h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .topic-overlay p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .topic-link {
            color: var(--accent);
            font-weight: 700;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s;
        }

        .topic-link:hover {
            color: #fff;
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.3);
            box-shadow: var(--shadow-sm);
        }

        .faq-item details {
            padding: 0 28px;
        }

        .faq-item summary {
            padding: 24px 0;
            font-weight: 700;
            font-size: 17px;
            color: var(--secondary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            user-select: none;
        }

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

        .faq-item summary::after {
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 16px;
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item details[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item .faq-content {
            padding-bottom: 26px;
            color: var(--text-weak);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--dark) 100%);
            padding: 88px 0;
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.25);
            filter: blur(70px);
        }

        .cta-section::after {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(244, 162, 97, 0.2);
            filter: blur(60px);
        }

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

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

        .cta-section p {
            color: rgba(255, 255, 255, 0.72);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto;
        }

        .cta-form {
            display: flex;
            max-width: 500px;
            margin: 32px auto 0;
            gap: 10px;
            padding: 6px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }

        .cta-form input {
            flex: 1;
            height: 48px;
            border-radius: 999px;
            border: none;
            padding: 0 22px;
            outline: none;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.95);
            color: var(--text-main);
            min-width: 0;
        }

        .cta-form input:focus {
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.35);
        }

        .cta-form .btn {
            height: 48px;
            padding: 0 32px;
            border-radius: 999px;
            flex-shrink: 0;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
            gap: 44px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-footer .logo {
            color: #fff;
            font-size: 24px;
        }

        .footer-brand p {
            font-size: 14px;
            margin-top: 16px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
            font-weight: 700;
        }

        .footer-links a {
            display: block;
            padding: 6px 0;
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: all 0.25s;
        }

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

        .footer-contact p {
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-contact .email {
            color: var(--accent);
            font-weight: 600;
            margin: 12px 0;
        }

        .social-icons {
            display: flex;
            gap: 10px;
            margin-top: 14px;
        }

        .social-icons a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            transition: all 0.3s;
        }

        .social-icons a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== Focus ===== */
        a:focus-visible,
        .card:focus-within {
            outline: 3px solid rgba(230, 57, 70, 0.4);
            outline-offset: 3px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .hero-text {
                text-align: center;
            }

            .hero-text p {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-stats {
                max-width: 560px;
                margin: 0 auto;
                width: 100%;
            }

            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .search-box {
                display: none;
            }
        }

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

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                box-shadow: 0 16px 32px rgba(11, 19, 43, 0.12);
                border-bottom: 1px solid var(--border);
                display: none;
                z-index: 99;
            }

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

            .nav-link {
                display: block;
                padding: 12px 18px;
                text-align: center;
                font-size: 16px;
                width: 100%;
                border-radius: 12px;
            }

            .header-actions {
                display: none;
            }

            .mobile-toggle {
                display: flex;
            }

            .page-hero {
                padding: 72px 0;
                background-attachment: scroll;
            }

            .hero-text h1 {
                font-size: 38px;
            }

            .hero-text p {
                font-size: 16px;
            }

            .hero-stats {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }

            .stat-card {
                padding: 18px 10px;
            }

            .stat-num {
                font-size: 24px;
            }

            .section {
                padding: 68px 0;
            }

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

            .grid-3 {
                grid-template-columns: 1fr;
            }

            .grid-2 {
                grid-template-columns: 1fr;
            }

            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .schedule-wrap {
                padding: 24px;
            }

            .schedule-item {
                flex-wrap: wrap;
                gap: 12px;
            }

            .schedule-time {
                min-width: auto;
            }

            .schedule-league {
                margin-left: auto;
            }

            .topic-card {
                min-height: 260px;
            }

            .topic-overlay {
                padding: 24px;
            }

            .cta-form {
                flex-direction: column;
                border-radius: 24px;
                padding: 14px;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

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

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

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

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

            .grid-4 {
                grid-template-columns: 1fr;
            }

            .sport-tags a {
                padding: 9px 18px;
                font-size: 14px;
            }

            .schedule-item {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
                padding: 18px 4px;
            }

            .schedule-league {
                margin-left: 0;
            }

            .topic-overlay h3 {
                font-size: 20px;
            }

            .faq-item details {
                padding: 0 18px;
            }

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

            .footer-bottom {
                padding: 18px 12px;
                line-height: 1.6;
            }
        }

/* roulang page: article */
:root {
  --brand: #ff6b2c;
  --brand-dark: #e04e1a;
  --brand-light: #fff2ec;
  --deep: #0f172a;
  --deep-2: #1e293b;
  --text: #334155;
  --muted: #64748b;
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e8ecf3;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.1);
  --container: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.2s ease; }
button { font-family: inherit; }
input { font-family: inherit; }
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.4;
  transition: all 0.25s ease;
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 107, 44, 0.3);
}
.btn-primary:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 44, 0.4);
}
.btn-sm { padding: 7px 16px; font-size: 0.875rem; }
.btn-block { width: 100%; }
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.badge-orange { background: rgba(255, 107, 44, 0.14); color: var(--brand); }
.badge-blue { background: rgba(59, 130, 246, 0.12); color: #2563eb; }
.badge-green { background: rgba(16, 185, 129, 0.12); color: #059669; }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head.center {
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--brand-light);
  color: var(--brand);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}
.section-head h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--deep);
  line-height: 1.3;
  margin-top: 6px;
}
.section-head .section-sub {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--deep);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #ff9a5a);
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 4px 12px rgba(255, 107, 44, 0.35);
}
.main-nav {
  display: flex;
  gap: 4px;
  align-items: center;
}
.nav-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  transition: all 0.25s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--brand);
  background: var(--brand-light);
}
.nav-link.active {
  color: #fff;
  background: var(--brand);
  box-shadow: 0 4px 12px rgba(255, 107, 44, 0.28);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--deep);
  font-size: 1.05rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}
.menu-toggle:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* Article Hero */
.article-hero {
  position: relative;
  padding: 150px 0 84px;
  background-size: cover;
  background-position: center;
  background-color: var(--deep);
  color: #fff;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.75) 50%, rgba(15, 23, 42, 0.4) 100%);
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 22px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); transition: color 0.2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.4); }
.breadcrumb .current {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.9);
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}
.article-hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.35;
  max-width: 820px;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 7px;
}
.article-meta i { color: rgba(255, 255, 255, 0.6); }

/* Article Section */
.article-section {
  padding: 64px 0 80px;
  background: var(--bg);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 40px;
  align-items: start;
}
.article-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid rgba(232, 236, 243, 0.6);
  transition: box-shadow 0.25s ease;
}
.article-cover {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.article-body {
  padding: 44px 52px;
}
.article-body p {
  margin-bottom: 1.25rem;
  line-height: 1.9;
  color: var(--text);
}
.article-body h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--deep);
  margin: 2rem 0 1rem;
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--deep);
  margin: 1.5rem 0 0.75rem;
}
.article-body ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.article-body li { margin-bottom: 0.4rem; }
.article-body img {
  border-radius: 12px;
  margin: 1.5rem 0;
  box-shadow: var(--shadow);
}
.article-body blockquote {
  border-left: 4px solid var(--brand);
  background: var(--brand-light);
  padding: 1rem 1.25rem;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  color: var(--deep-2);
  font-weight: 500;
}
.article-body a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--brand-dark); }
.article-empty {
  padding: 24px;
  background: var(--bg);
  border-radius: 12px;
  color: var(--muted);
  font-size: 1.05rem;
}
.article-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 24px 52px;
  border-top: 1px solid var(--border);
}
.tags-wrap { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  transition: all 0.2s;
}
.tag:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-light); }
.share-wrap { display: flex; align-items: center; gap: 8px; }
.share-label { font-size: 0.9rem; color: var(--muted); }
.share-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  transition: all 0.2s;
}
.share-btn:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-2px);
}

/* Recommend */
.recommend-section {
  margin-top: 48px;
}
.recommend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.recommend-card {
  display: block;
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}
.recommend-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.recommend-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.recommend-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.recommend-card:hover .recommend-img img { transform: scale(1.06); }
.recommend-img .badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}
.recommend-body { padding: 18px 20px 20px; }
.recommend-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.recommend-card:hover .recommend-body h3 { color: var(--brand); }
.recommend-meta {
  font-size: 0.82rem;
  color: var(--muted);
}

/* Sidebar */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 96px;
}
.sidebar-card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 24px;
}
.sidebar-card h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--deep);
  margin-bottom: 16px;
}
.sidebar-card h4 i { color: var(--brand); }
.sidebar-links { display: flex; flex-direction: column; gap: 4px; }
.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
}
.sidebar-link span { display: flex; align-items: center; gap: 10px; }
.sidebar-link i { color: var(--muted); font-size: 0.8rem; transition: all 0.2s; }
.sidebar-link:hover {
  background: var(--brand-light);
  color: var(--brand);
}
.sidebar-link:hover i { color: var(--brand); transform: translateX(3px); }
.sidebar-link i.fa-bolt, .sidebar-link i.fa-dumbbell, .sidebar-link i.fa-heartbeat { color: var(--brand); }
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.sidebar-promo {
  position: relative;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  padding: 0;
}
.promo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.72));
}
.promo-content {
  position: relative;
  z-index: 2;
  padding: 28px 24px;
  color: #fff;
}
.promo-content h4 {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.promo-content p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  margin-bottom: 18px;
}

/* Notfound */
.article-notfound-card { padding: 0; }
.article-notfound {
  text-align: center;
  padding: 80px 40px;
}
.notfound-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 1.6rem;
}
.article-notfound h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--deep);
  margin-bottom: 10px;
}
.article-notfound p {
  color: var(--muted);
  margin-bottom: 24px;
}

/* FAQ */
.faq-section {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border);
}
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0 22px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.25s ease;
}
.faq-item:hover { box-shadow: var(--shadow-lg); }
.faq-item summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--deep);
  padding: 20px 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--brand);
  transition: transform 0.25s ease;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  padding: 0 0 20px;
  color: var(--muted);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* CTA */
.cta-section {
  padding: 80px 0;
  background: url('/assets/images/backpic/back-2.png') center / cover fixed;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.84);
}
.cta-box {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 700px;
  margin: 0 auto;
}
.cta-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}
.cta-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 14px;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 30px;
  font-size: 1.05rem;
}
.cta-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.cta-stat strong {
  display: block;
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.2;
}
.cta-stat span {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.65);
}
.cta-form {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto 14px;
}
.cta-form input {
  flex: 1;
  min-width: 0;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  outline: none;
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
}
.cta-form input::placeholder { color: rgba(255, 255, 255, 0.55); }
.cta-form input:focus {
  border-color: var(--brand);
  background: rgba(255, 255, 255, 0.18);
}
.cta-form button {
  padding: 13px 30px;
  border-radius: 999px;
  border: none;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.cta-form button:hover {
  background: var(--brand-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 44, 0.45);
}
.cta-note {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 0;
}

/* Footer */
.site-footer {
  background: var(--deep);
  color: #94a3b8;
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand p {
  margin-top: 16px;
  max-width: 360px;
  line-height: 1.8;
  font-size: 0.92rem;
}
.footer-links h4,
.footer-contact h4 {
  color: #fff;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-links a {
  display: block;
  color: #94a3b8;
  padding: 6px 0;
  font-size: 0.92rem;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--brand); }
.footer-contact p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-bottom: 10px;
}
.footer-contact .email { color: rgba(255, 255, 255, 0.8); font-weight: 600; }
.social-icons {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}
.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #94a3b8;
  transition: all 0.25s ease;
}
.social-icons a:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-2px);
}
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  color: #64748b;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    order: -1;
  }
  .sidebar-promo { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .recommend-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .main-nav .nav-link { text-align: center; }
  .menu-toggle { display: inline-flex; }
  .header-actions .btn-primary { display: none; }
  .article-hero { padding: 130px 0 60px; }
  .article-body { padding: 28px 22px; }
  .article-bottom { padding: 20px 22px; }
  .article-cover { height: 280px; }
  .faq-grid { grid-template-columns: 1fr; }
  .cta-stats { gap: 28px; }
  .cta-form { flex-direction: column; }
  .cta-form button { width: 100%; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .logo { font-size: 1.15rem; }
  .logo-icon { width: 34px; height: 34px; }
  .article-hero { padding: 120px 0 48px; }
  .article-hero h1 { font-size: 1.55rem; }
  .article-meta { gap: 10px; font-size: 0.82rem; }
  .article-cover { height: 220px; }
  .recommend-grid { grid-template-columns: 1fr; }
  .article-sidebar { display: flex; flex-direction: column; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-head.center { align-items: center; text-align: center; }
  .section-head h2 { font-size: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-stat strong { font-size: 1.7rem; }
}

/* roulang page: category2 */
:root {
            --primary: #0b1e3a;
            --primary-light: #1e3a5f;
            --accent: #f97316;
            --accent-hover: #ea580c;
            --accent-soft: rgba(249, 115, 22, 0.12);
            --bg: #f6f8fb;
            --surface: #ffffff;
            --text: #172033;
            --text-muted: #5b6b80;
            --border: #e2e8f0;
            --radius: 18px;
            --shadow: 0 12px 32px rgba(2, 12, 27, 0.08);
            --shadow-lg: 0 20px 50px rgba(2, 12, 27, 0.14);
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            padding-top: 76px;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            display: block;
            max-width: 100%;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
            width: 100%;
        }
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 50;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), #fbbf24);
            border-radius: 10px;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 14px rgba(249, 115, 22, 0.35);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: .92rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all .25s ease;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(11, 30, 58, 0.06);
        }
        .nav-link.active {
            color: var(--accent);
            background: var(--accent-soft);
            font-weight: 700;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 9px 20px;
            border-radius: 999px;
            font-size: .9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all .25s ease;
        }
        .header-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(11, 30, 58, 0.2);
        }
        .menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border);
            background: var(--surface);
            border-radius: 12px;
            font-size: 1.2rem;
            color: var(--primary);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: all .2s ease;
        }
        .menu-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .hero-banner {
            background: linear-gradient(120deg, rgba(11, 30, 58, 0.92), rgba(30, 58, 95, 0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            padding: 110px 0 90px;
            position: relative;
            overflow: hidden;
        }
        .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);
            backdrop-filter: blur(6px);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: .85rem;
            letter-spacing: 1px;
            margin-bottom: 24px;
        }
        .hero-title {
            font-size: clamp(2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 1px;
            max-width: 700px;
        }
        .hero-sub {
            max-width: 640px;
            margin-top: 20px;
            font-size: 1.08rem;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 34px;
        }
        .btn-primary,
        .btn-outline,
        .btn-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            font-weight: 600;
            padding: 12px 28px;
            font-size: 1rem;
            transition: all .25s ease;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 24px rgba(249, 115, 22, 0.32);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(249, 115, 22, 0.4);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }
        .btn-light:hover {
            background: #f1f5f9;
            transform: translateY(-2px);
        }
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--surface);
        }
        .section-head {
            max-width: 760px;
            margin-bottom: 48px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: .88rem;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
        }
        .section-desc {
            margin-top: 16px;
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .card {
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all .3s ease;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-cover {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }
        .card:hover .card-cover img {
            transform: scale(1.05);
        }
        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .card-body {
            padding: 24px;
        }
        .card-title {
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 10px;
        }
        .card-text {
            font-size: .92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: .82rem;
            color: var(--text-muted);
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: .92rem;
            margin-top: 12px;
            transition: gap .2s ease;
        }
        .card-link:hover {
            gap: 12px;
        }
        .data-band {
            background: linear-gradient(120deg, rgba(11, 30, 58, 0.95), rgba(15, 23, 42, 0.88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .data-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(8px);
            border-radius: 18px;
            padding: 30px 22px;
            text-align: center;
            transition: all .3s ease;
        }
        .data-card:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }
        .data-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fbbf24;
            line-height: 1.2;
        }
        .data-label {
            margin-top: 8px;
            font-size: .92rem;
            color: rgba(255, 255, 255, 0.85);
        }
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .split-media {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .split-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .check-list {
            list-style: none;
            margin-top: 22px;
        }
        .check-list li {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            align-items: flex-start;
        }
        .check-list i {
            color: var(--accent);
            margin-top: 4px;
            font-size: 1rem;
        }
        .check-list strong {
            color: var(--primary);
            display: block;
            font-size: 1rem;
        }
        .check-list p {
            color: var(--text-muted);
            font-size: .92rem;
            line-height: 1.6;
        }
        .path-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            margin-top: 20px;
        }
        .path-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 28px 22px;
            position: relative;
            transition: all .3s ease;
        }
        .path-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .path-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent-soft);
            color: var(--accent);
            border-radius: 12px;
            font-weight: 800;
            font-size: 1.05rem;
            margin-bottom: 16px;
        }
        .path-item h3 {
            font-size: 1.05rem;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .path-item p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .coach-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .coach-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 28px;
            text-align: center;
            transition: all .3s ease;
        }
        .coach-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }
        .coach-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fbbf24;
            font-size: 1.5rem;
            border-radius: 20px;
            margin-bottom: 16px;
        }
        .coach-card h3 {
            color: var(--primary);
            font-size: 1.1rem;
            margin-bottom: 4px;
        }
        .coach-card .coach-role {
            color: var(--accent);
            font-size: .86rem;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .coach-card p {
            font-size: .9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: all .25s ease;
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            color: var(--primary);
            transition: color .2s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--accent);
            transition: transform .3s ease;
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-item[open] {
            border-color: rgba(249, 115, 22, 0.35);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.8;
        }
        .cta-band {
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            border-radius: 24px;
            padding: 64px 50px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-band::after {
            content: "";
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: rgba(249, 115, 22, 0.25);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-band h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 800;
            line-height: 1.4;
        }
        .cta-band p {
            color: rgba(255, 255, 255, 0.85);
            margin-top: 8px;
            max-width: 520px;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            background: rgba(255, 255, 255, 0.95);
            padding: 8px;
            border-radius: 999px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            flex-wrap: wrap;
            width: 100%;
            max-width: 460px;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 180px;
            border: none;
            padding: 10px 18px;
            font-size: .92rem;
            border-radius: 999px;
            background: transparent;
            outline: none;
            color: var(--primary);
        }
        .subscribe-form button {
            background: var(--accent);
            border: none;
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: 999px;
            cursor: pointer;
            font-size: .9rem;
            transition: background .2s ease;
        }
        .subscribe-form button:hover {
            background: var(--accent-hover);
        }
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: .92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.72);
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }
        .footer-links a {
            font-size: .92rem;
            color: rgba(255, 255, 255, 0.72);
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: #fbbf24;
        }
        .footer-contact p {
            font-size: .9rem;
            color: rgba(255, 255, 255, 0.72);
            margin-bottom: 10px;
            line-height: 1.7;
        }
        .footer-contact .email {
            font-weight: 600;
            color: #fbbf24;
        }
        .social-icons {
            display: flex;
            gap: 12px;
            margin-top: 12px;
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            color: #fff;
            transition: all .25s ease;
        }
        .social-icons a:hover {
            background: var(--accent);
            transform: translateY(-3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 18px 0;
            text-align: center;
            font-size: .84rem;
            color: rgba(255, 255, 255, 0.6);
        }
        @media (max-width: 1024px) {
            .grid-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .path-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .coach-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            body {
                padding-top: 68px;
            }
            .header-inner {
                height: 68px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 24px 40px rgba(0, 0, 0, 0.08);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 16px;
                font-size: 1rem;
            }
            .header-cta {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .hero-banner {
                padding: 80px 0 64px;
            }
            .split-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .section {
                padding: 56px 0;
            }
            .data-band {
                padding: 56px 0;
            }
            .cta-band {
                padding: 40px 28px;
                border-radius: 18px;
            }
        }
        @media (max-width: 520px) {
            .grid-cards {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .path-grid {
                grid-template-columns: 1fr;
            }
            .coach-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
            }
            .subscribe-form {
                border-radius: 18px;
                padding: 12px;
            }
            .subscribe-form input {
                flex: 1 0 100%;
                background: #f1f5f9;
                border-radius: 12px;
                margin-bottom: 8px;
            }
            .subscribe-form button {
                width: 100%;
                border-radius: 12px;
            }
        }

/* roulang page: category3 */
:root {
    --primary: #10b981;
    --primary-dark: #0d9668;
    --primary-light: #d1fae5;
    --dark: #0f172a;
    --dark-soft: #1e293b;
    --body-bg: #ffffff;
    --section-bg: #f8fafc;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
    --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
    --container: 1200px;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    background: var(--body-bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    display: block;
    object-fit: cover;
}
a {
    color: inherit;
    text-decoration: none;
}
button,
input {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(226, 232, 240, .7);
    transition: box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled {
    background: rgba(255, 255, 255, .96);
    box-shadow: var(--shadow-sm);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
}
.header-left {
    display: flex;
    align-items: center;
    gap: 40px;
    flex: 1;
    min-width: 0;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    letter-spacing: .5px;
    white-space: nowrap;
}
.logo-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #34d399);
    color: #fff;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, .3);
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-link {
    position: relative;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    border-radius: 8px;
    transition: color .2s, background .2s;
    white-space: nowrap;
}
.nav-link:hover {
    color: var(--primary);
    background: rgba(16, 185, 129, .06);
}
.nav-link.active {
    color: var(--primary-dark);
    font-weight: 700;
}
.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 3px;
    border-radius: 3px;
    background: var(--primary);
}
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.header-search {
    position: relative;
    width: 220px;
}
.header-search input {
    width: 100%;
    height: 38px;
    padding: 0 38px 0 14px;
    background: var(--section-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text);
    transition: border-color .2s, box-shadow .2s;
}
.header-search input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, .15);
}
.header-search i {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
    pointer-events: none;
}
.header-cta {
    height: 38px;
    padding: 0 22px;
    border-radius: 20px;
    background: var(--dark);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, transform .2s, box-shadow .2s;
    white-space: nowrap;
}
.header-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, .3);
}
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--dark);
    font-size: 18px;
    cursor: pointer;
    border: 1px solid var(--border);
    background: #fff;
}
/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 620px;
    display: flex;
    align-items: center;
    padding: 148px 0 88px;
    background: url('/assets/images/backpic/back-2.png') right center / cover no-repeat;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(15, 23, 42, .92) 0%, rgba(15, 23, 42, .7) 42%, rgba(15, 23, 42, .25) 72%, rgba(15, 23, 42, .06) 100%);
    pointer-events: none;
    display: block;
}
.hero-inner {
    position: relative;
    z-index: 2;
    width: 100%;
}
.hero-content {
    max-width: 640px;
    color: #fff;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, .2);
    border: 1px solid rgba(16, 185, 129, .4);
    color: #6ee7b7;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .5px;
    margin-bottom: 24px;
}
.hero-badge i {
    font-size: 12px;
}
.hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.hero h1 .accent {
    color: var(--primary);
}
.hero-desc {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255, 255, 255, .85);
    margin-bottom: 28px;
    max-width: 540px;
}
.hero-search {
    display: flex;
    gap: 10px;
    max-width: 520px;
    margin-bottom: 20px;
}
.hero-search input {
    flex: 1;
    height: 52px;
    padding: 0 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, .2);
    background: rgba(255, 255, 255, .1);
    color: #fff;
    font-size: 15px;
    backdrop-filter: blur(8px);
    transition: background .2s, border-color .2s;
}
.hero-search input::placeholder {
    color: rgba(255, 255, 255, .6);
}
.hero-search input:focus {
    background: rgba(255, 255, 255, .18);
    border-color: var(--primary);
}
.hero-search button {
    height: 52px;
    padding: 0 32px;
    border-radius: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, transform .2s, box-shadow .2s;
    white-space: nowrap;
}
.hero-search button:hover {
    background: #34d399;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(16, 185, 129, .4);
}
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.hero-tags .label {
    font-size: 13px;
    color: rgba(255, 255, 255, .6);
    margin-right: 4px;
}
.hero-tags a {
    font-size: 13px;
    color: rgba(255, 255, 255, .7);
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .12);
    padding: 4px 14px;
    border-radius: 20px;
    transition: background .2s, color .2s;
}
.hero-tags a:hover {
    background: rgba(16, 185, 129, .3);
    color: #fff;
}
.hero-metrics {
    display: flex;
    gap: 36px;
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero-metrics .item .num {
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
}
.hero-metrics .item .num small {
    font-size: 14px;
    color: var(--primary);
    margin-left: 2px;
}
.hero-metrics .item .txt {
    font-size: 13px;
    color: rgba(255, 255, 255, .6);
    margin-top: 2px;
}
/* ===== Breadcrumb ===== */
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 18px;
}
.breadcrumb a {
    color: var(--text-muted);
    transition: color .2s;
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb i {
    font-size: 10px;
    color: #94a3b8;
}
/* ===== Section 通用 ===== */
.section {
    padding: 88px 0;
}
.section.top {
    padding-top: 110px;
}
.section-alt {
    background: var(--section-bg);
}
.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}
.section-head .sub {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
    margin-bottom: 10px;
}
.section-head .sub i {
    font-size: 12px;
}
.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--dark);
    margin-bottom: 12px;
}
.section-head p {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.8;
}
/* ===== Category Intro ===== */
.intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
}
.intro-text .lead {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.6;
}
.intro-text p {
    color: var(--text-muted);
    margin-bottom: 22px;
    line-height: 1.9;
}
.intro-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.intro-list li {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    list-style: none;
}
.intro-list .icon {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
.intro-list .text {
    font-size: 15px;
    color: var(--text);
    line-height: 1.7;
}
.intro-list .text strong {
    display: block;
    font-size: 16px;
    margin-bottom: 2px;
}
.intro-card {
    background: linear-gradient(145deg, #f0fdf9, #ecfdf5);
    border: 1px solid rgba(16, 185, 129, .15);
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow: hidden;
}
.intro-card::after {
    content: '';
    position: absolute;
    right: -40px;
    bottom: -40px;
    width: 160px;
    height: 160px;
    background: rgba(16, 185, 129, .08);
    border-radius: 50%;
}
.intro-card .big-num {
    font-size: 64px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
}
.intro-card .big-label {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}
.intro-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}
.intro-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-top: 24px;
}
.intro-stats-row .box {
    background: #fff;
    border-radius: 14px;
    padding: 18px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    z-index: 2;
    position: relative;
}
.intro-stats-row .box .num {
    font-size: 26px;
    font-weight: 800;
    color: var(--dark);
}
.intro-stats-row .box .txt {
    font-size: 13px;
    color: var(--text-muted);
}
/* ===== Cards ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.article-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.article-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.article-cover {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.article-card:hover .article-cover img {
    transform: scale(1.05);
}
.article-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(15, 23, 42, .2));
    pointer-events: none;
}
.article-tag {
    position: absolute;
    left: 16px;
    bottom: 14px;
    z-index: 2;
    background: rgba(16, 185, 129, .92);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(4px);
}
.article-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.article-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--dark);
    transition: color .2s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-card:hover .article-body h3 {
    color: var(--primary-dark);
}
.article-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 12px;
    color: #94a3b8;
    margin-top: auto;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.article-meta i {
    font-size: 11px;
}
/* ===== Knowledge Areas ===== */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.area-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: transform .3s ease, box-shadow .3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.area-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.area-cover {
    position: relative;
    height: 210px;
    overflow: hidden;
}
.area-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.area-card:hover .area-cover img {
    transform: scale(1.05);
}
.area-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, .35));
    pointer-events: none;
}
.area-cover .area-tag {
    position: absolute;
    left: 16px;
    bottom: 14px;
    z-index: 2;
    background: rgba(255, 255, 255, .9);
    color: var(--dark);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 20px;
}
.area-body {
    padding: 26px;
    flex: 1;
}
.area-body h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}
.area-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 18px;
}
.area-points {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
}
.area-points li {
    font-size: 14px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.area-points li i {
    color: var(--primary);
    font-size: 12px;
}
/* ===== Stats ===== */
.stats-band {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #134e4a 100%);
    padding: 80px 0;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.stats-band::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(16, 185, 129, .15);
    filter: blur(60px);
}
.stats-band::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: 20px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(245, 158, 11, .08);
    filter: blur(50px);
}
.stats-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}
.stats-item .num {
    font-size: 52px;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #34d399, #6ee7b7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stats-item .num sup {
    font-size: 22px;
    font-weight: 700;
}
.stats-item .label {
    font-size: 15px;
    color: rgba(255, 255, 255, .65);
    margin-top: 10px;
    letter-spacing: 1px;
}
/* ===== FAQ ===== */
.faq-wrap {
    max-width: 840px;
    margin: 0 auto;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: border-color .2s, box-shadow .2s;
}
.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}
.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    text-align: left;
    transition: background .2s;
}
.faq-q:hover {
    background: rgba(16, 185, 129, .03);
}
.faq-q .icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: transform .3s, background .3s;
}
.faq-item.active .faq-q .icon {
    transform: rotate(45deg);
    background: var(--primary);
    color: #fff;
}
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
}
.faq-a-inner {
    padding: 0 28px 22px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.85;
}
/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, #059669 50%, #0d9668 100%);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    top: -40px;
    right: 20%;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .08);
}
.cta-inner {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
}
.cta-text h2 {
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
}
.cta-text p {
    font-size: 15px;
    color: rgba(255, 255, 255, .85);
}
.cta-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    min-width: 360px;
}
.cta-form input {
    flex: 1;
    min-width: 200px;
    height: 50px;
    padding: 0 20px;
    border-radius: 12px;
    border: none;
    font-size: 15px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
}
.cta-form input:focus {
    box-shadow: 0 0 0 3px rgba(255, 255, 255, .35);
}
.cta-form button {
    height: 50px;
    padding: 0 30px;
    border-radius: 12px;
    background: var(--dark);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, transform .2s;
    white-space: nowrap;
}
.cta-form button:hover {
    background: #1e293b;
    transform: translateY(-1px);
}
/* ===== Footer ===== */
.site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 64px 0 0;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-brand .logo {
    color: #fff;
    margin-bottom: 14px;
}
.footer-brand p {
    line-height: 1.85;
    margin-top: 14px;
    max-width: 340px;
}
.footer-links h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}
.footer-links a {
    display: block;
    color: #94a3b8;
    padding: 5px 0;
    transition: color .2s, padding-left .2s;
}
.footer-links a:hover {
    color: var(--primary);
    padding-left: 6px;
}
.footer-contact p {
    line-height: 1.7;
}
.footer-contact .email {
    color: var(--primary);
    margin-top: 12px;
    font-weight: 600;
}
.social-icons {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}
.social-icons a {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .08);
    color: #94a3b8;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, color .2s, transform .2s;
}
.social-icons a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 24px 0;
    text-align: center;
    font-size: 13px;
    color: #64748b;
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .cards-grid,
    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .intro-grid {
        gap: 40px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .header-search {
        width: 170px;
    }
    .stats-item .num {
        font-size: 42px;
    }
}
@media (max-width: 860px) {
    .header-search,
    .header-cta {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: transform .3s ease;
        max-height: calc(100vh - 72px);
        overflow-y: auto;
    }
    .main-nav.open {
        transform: translateY(0);
    }
    .nav-link {
        padding: 12px 16px;
        font-size: 16px;
    }
    .nav-link.active::after {
        display: none;
    }
    .nav-link.active {
        background: var(--primary-light);
        color: var(--primary-dark);
    }
    .hero {
        min-height: 540px;
        padding: 130px 0 60px;
        background-position: 70% center;
    }
    .hero h1 {
        font-size: 38px;
    }
    .hero-metrics {
        gap: 20px;
        flex-wrap: wrap;
    }
    .stats-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .cta-form {
        min-width: 0;
        width: 100%;
    }
}
@media (max-width: 640px) {
    .container {
        padding: 0 18px;
    }
    .section {
        padding: 56px 0;
    }
    .section-head {
        margin-bottom: 36px;
    }
    .section-head h2 {
        font-size: 26px;
    }
    .hero h1 {
        font-size: 30px;
    }
    .hero-desc {
        font-size: 15px;
    }
    .hero-search {
        flex-direction: column;
    }
    .hero-search button {
        width: 100%;
    }
    .cards-grid,
    .areas-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .stats-item .num {
        font-size: 34px;
    }
    .faq-q {
        padding: 18px 20px;
        font-size: 15px;
    }
    .faq-a-inner {
        padding: 0 20px 18px;
        font-size: 14px;
    }
    .cta-form {
        flex-direction: column;
    }
    .cta-form button {
        width: 100%;
    }
    .hero-metrics .item .num {
        font-size: 22px;
    }
}
/* 辅助动画 */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.animate {
    animation: fadeUp .5s ease both;
}
.d-1 { animation-delay: .1s; }
.d-2 { animation-delay: .2s; }
.d-3 { animation-delay: .3s; }
.d-4 { animation-delay: .4s; }
.d-5 { animation-delay: .5s; }