:root {
    --primary: rgb(213, 5, 5);
    --primary-dark: rgb(176, 0, 0);
    --text: #161616;
    --muted: #666666;
    --light: #f6f6f6;
    --line: #ececec;
    --card: #ffffff;
    --dark: #242424;
    --radius: 18px;
    --shadow: 0 12px 30px rgba(0, 0, 0, .06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text);
    background: #fff;
    line-height: 1.72;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 4px 18px rgba(0, 0, 0, .03);
}
.mobile-header {
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    background: #fff;
}
.menu-toggle {
    width: 38px;
    height: 38px;
    border: 0;
    background: transparent;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 0 6px;
    cursor: pointer;
}
.menu-toggle span {
    height: 2px;
    width: 24px;
    border-radius: 4px;
    background: var(--dark);
    transition: transform .22s ease, opacity .22s ease;
}
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-logo { position: absolute; left: 50%; transform: translateX(-50%); }
.mobile-logo img { height: 34px; width: auto; object-fit: contain; }
.site-logo img { height: 44px; width: auto; object-fit: contain; }
.top-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 70px;
    height: 34px;
    padding: 0 16px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 8px 18px rgba(213, 5, 5, .18);
}
.top-action:hover, .main-btn:hover { background: var(--primary-dark); }
.mobile-nav {
    display: none;
    padding: 8px 16px 16px;
    background: #fff;
    border-top: 1px solid var(--line);
}
.mobile-nav.open { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.mobile-nav a {
    padding: 11px 12px;
    border-radius: 12px;
    background: var(--light);
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
}
.mobile-nav a.active { background: rgba(213, 5, 5, .08); color: var(--primary); }
.desktop-header { display: none; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    min-height: 46px;
    padding: 0 28px;
    border-radius: 999px;
    background: var(--primary);
    color: #fff;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(213, 5, 5, .2);
}
.link-more { color: var(--primary); font-weight: 800; }
.eyebrow, .badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    background: rgba(213, 5, 5, .08);
    border: 1px solid rgba(213, 5, 5, .13);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 800;
}
.section { padding: 52px 0; }
.section.alt { background: var(--light); }
.section-title { margin-bottom: 24px; }
.section-title h2 { margin: 10px 0 8px; font-size: clamp(26px, 5vw, 38px); line-height: 1.22; }
.section-title p { margin: 0; color: var(--muted); max-width: 740px; }
.hero {
    padding: 26px 0 50px;
    background: linear-gradient(180deg, #fff 0%, #fff7f7 100%);
}
.hero-grid { display: grid; gap: 28px; align-items: center; }
.hero h1 { font-size: clamp(32px, 8vw, 58px); line-height: 1.08; margin: 14px 0 16px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 16px; margin: 0 0 22px; }
.hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hero-note { font-size: 13px; color: var(--muted); }
.hero-media { position: relative; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.hero-media img { width: 100%; min-height: 260px; object-fit: cover; }
.live-board {
    position: static;
    display: grid;
    gap: 10px;
    padding: 14px;
    background: #fff;
}
.live-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 10px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    font-size: 13px;
    font-weight: 700;
}
.live-row strong { color: var(--primary); font-size: 16px; }
.category-grid, .service-grid, .card-grid { display: grid; gap: 16px; }
.sports-card, .service-card, .info-card, .faq-item, .notice-box, .step-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: 0 8px 22px rgba(0, 0, 0, .035);
}
.sports-card h3, .service-card h3, .info-card h3, .step-card h3 { margin: 0 0 8px; font-size: 20px; }
.sports-card p, .service-card p, .info-card p, .step-card p, .faq-item p { margin: 0 0 14px; color: var(--muted); }
.card-tag {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    color: var(--primary);
    background: rgba(213, 5, 5, .08);
    font-size: 12px;
    font-weight: 800;
}
.split { display: grid; gap: 24px; align-items: center; }
.split-img { border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.split-img img { width: 100%; object-fit: cover; }
.score-panel, .data-panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 18px;
    box-shadow: var(--shadow);
}
.score-item, .data-item {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
}
.score-item:last-child, .data-item:last-child { border-bottom: 0; }
.status {
    display: inline-flex;
    align-items: center;
    padding: 3px 9px;
    border-radius: 999px;
    color: var(--primary);
    background: rgba(213, 5, 5, .08);
    font-size: 12px;
    font-weight: 800;
}
.app-showcase {
    background: linear-gradient(135deg, #fff, #fff1f1);
    border: 1px solid rgba(213, 5, 5, .12);
    border-radius: 28px;
    padding: 24px;
}
.security-section .service-card { min-height: 170px; }
.responsible-play { background: #fff; }
.notice-box {
    border-left: 5px solid var(--primary);
    background: #fffafa;
}
.notice-box ul, .check-list { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.faq-list { display: grid; gap: 14px; }
.faq-item h3 { margin: 0 0 8px; font-size: 18px; }
.cta-band {
    margin: 52px 0;
    padding: 30px;
    border-radius: 28px;
    background: var(--primary);
    color: #fff;
    display: grid;
    gap: 18px;
}
.cta-band p { margin: 0; color: rgba(255,255,255,.9); }
.cta-band .main-btn { background: #fff; color: var(--primary); box-shadow: none; }
.cta-band .main-btn:hover { background: #f2f2f2; }
.page-hero {
    padding: 48px 0;
    background: linear-gradient(180deg, #fff, #fff5f5);
    border-bottom: 1px solid var(--line);
}
.page-hero h1 { margin: 14px 0 12px; font-size: clamp(30px, 7vw, 48px); line-height: 1.16; }
.page-hero p { margin: 0; max-width: 820px; color: var(--muted); }
.content-wrap { padding: 44px 0; }
.rich-text { display: grid; gap: 18px; }
.rich-text p { margin: 0; color: var(--muted); }
.steps { display: grid; gap: 14px; counter-reset: step; }
.step-card { position: relative; padding-left: 58px; }
.step-card::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 20px;
    top: 22px;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
}
.site-footer { background: #202020; color: #fff; margin-top: 30px; }
.footer-grid { display: grid; gap: 24px; padding: 40px 0; }
.footer-logo img { height: 42px; margin-bottom: 12px; }
.site-footer h3 { margin: 0 0 10px; font-size: 16px; }
.site-footer p { margin: 0; color: rgba(255,255,255,.72); font-size: 14px; }
.site-footer a { display: block; color: rgba(255,255,255,.72); margin: 7px 0; font-size: 14px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.68); font-size: 13px; padding: 14px 0; }
@media (min-width: 640px) {
    .category-grid, .service-grid, .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.2fr; }
}
@media (min-width: 900px) {
    .mobile-header, .mobile-nav { display: none !important; }
    .desktop-header {
        height: 76px;
        display: flex;
        align-items: center;
        gap: 22px;
    }
    .desktop-nav {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 22px;
        flex: 1;
    }
    .desktop-nav a {
        position: relative;
        font-size: 15px;
        color: #333;
        font-weight: 700;
        padding: 26px 0;
        white-space: nowrap;
    }
    .desktop-nav a.active, .desktop-nav a:hover { color: var(--primary); }
    .desktop-nav a.active::after {
        content: '';
        position: absolute;
        left: 0;
        right: 0;
        bottom: 18px;
        height: 3px;
        border-radius: 999px;
        background: var(--primary);
    }
    .search-icon {
        width: 22px;
        height: 22px;
        border: 2px solid #333;
        border-radius: 50%;
        position: relative;
        flex: 0 0 auto;
    }
    .search-icon::after {
        content: '';
        position: absolute;
        right: -6px;
        bottom: -5px;
        width: 9px;
        height: 2px;
        background: #333;
        transform: rotate(45deg);
        border-radius: 4px;
    }
    .hero { padding: 46px 0 72px; }
    .hero-grid, .split { grid-template-columns: 1.05fr .95fr; }
    .live-board { position: absolute; left: 18px; right: 18px; bottom: 18px; border-radius: 18px; }
    .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .service-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .cta-band { grid-template-columns: 1fr auto; align-items: center; padding: 38px 44px; }
    .section { padding: 72px 0; }
}