* { box-sizing: border-box; }
:root {
    --brand-red: rgb(213, 5, 5);
    --brand-red-dark: rgb(174, 0, 0);
    --text-main: #171717;
    --text-muted: #606060;
    --line: #eeeeee;
    --bg-soft: #f6f6f6;
    --bg-card: #ffffff;
    --shadow: 0 14px 34px rgba(0, 0, 0, 0.08);
    --radius-lg: 22px;
    --radius-md: 16px;
}
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    color: var(--text-main);
    background: #fff;
    line-height: 1.72;
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { background: #fff; position: relative; z-index: 20; border-bottom: 1px solid var(--line); }
.top-red-bar { display: none; background: var(--brand-red); color: #fff; font-size: 13px; }
.top-red-inner { height: 34px; display: flex; align-items: center; justify-content: center; letter-spacing: .2px; }
.mobile-header { height: 64px; display: grid; grid-template-columns: 56px 1fr 74px; align-items: center; padding: 0 14px; background: #fff; }
.menu-button { width: 42px; height: 42px; border: 0; background: transparent; padding: 8px; display: inline-flex; flex-direction: column; justify-content: center; gap: 6px; cursor: pointer; }
.menu-button span { height: 2px; width: 24px; background: #111; border-radius: 9px; display: block; }
.mobile-logo { justify-self: center; }
.mobile-logo img { height: 36px; width: auto; }
.logo, .desktop-logo img { height: 44px; width: auto; }
.top-action-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 18px; border-radius: 999px; background: var(--brand-red); color: #fff; font-weight: 700; font-size: 14px; transition: .2s ease; white-space: nowrap; }
.top-action-btn:hover, .main-btn:hover { background: var(--brand-red-dark); transform: translateY(-1px); }
.mobile-nav { display: none; padding: 8px 16px 18px; border-top: 1px solid var(--line); background: #fff; grid-template-columns: 1fr 1fr; gap: 10px; }
.mobile-nav.open { display: grid; }
.mobile-nav a { padding: 12px 14px; border-radius: 14px; background: var(--bg-soft); color: #333; font-weight: 700; }
.mobile-nav a.active { background: var(--brand-red); color: #fff; }
.desktop-header { display: none; }
.search-icon { width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; position: relative; flex: 0 0 auto; }
.search-icon::before { content: ""; width: 12px; height: 12px; border: 2px solid #444; border-radius: 50%; position: absolute; top: 8px; left: 8px; }
.search-icon::after { content: ""; width: 9px; height: 2px; background: #444; border-radius: 4px; transform: rotate(45deg); position: absolute; top: 21px; left: 21px; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.desktop-nav a { padding: 9px 14px; border-radius: 999px; color: #252525; font-size: 15px; font-weight: 700; white-space: nowrap; }
.desktop-nav a.active, .desktop-nav a:hover { background: var(--brand-red); color: #fff; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 28px; border-radius: 999px; background: var(--brand-red); color: #fff; font-weight: 800; box-shadow: 0 10px 22px rgba(213, 5, 5, 0.22); transition: .2s ease; }
.link-more { display: inline-flex; align-items: center; color: var(--brand-red); font-weight: 800; margin-top: 12px; }
.section { padding: 56px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { margin-bottom: 26px; display: grid; gap: 8px; }
.section-head h2, .sub-hero h1 { margin: 0; font-size: clamp(28px, 4vw, 44px); line-height: 1.2; color: #111; }
.section-head p, .sub-hero p { margin: 0; color: var(--text-muted); max-width: 840px; }
.eyebrow { display: inline-flex; align-items: center; width: fit-content; padding: 5px 12px; border-radius: 999px; background: rgba(213, 5, 5, 0.09); color: var(--brand-red); font-weight: 800; font-size: 13px; }
.banner-slider { position: relative; width: 100%; overflow: hidden; background: #f3f3f3; }
.slide { display: none; position: relative; }
.slide.active { display: block; }
.slide img { width: 100%; min-height: 220px; object-fit: cover; }
.slide-caption { position: absolute; left: 50%; bottom: 24px; transform: translateX(-50%); width: min(1180px, calc(100% - 32px)); color: #fff; display: grid; gap: 10px; text-shadow: 0 2px 12px rgba(0, 0, 0, .45); }
.slide-caption h1, .slide-caption h2 { margin: 0; line-height: 1.18; font-size: clamp(24px, 5vw, 56px); max-width: 700px; }
.slide-caption p { margin: 0; max-width: 620px; font-size: 15px; }
.slider-dots { position: absolute; left: 0; right: 0; bottom: 10px; display: flex; justify-content: center; gap: 8px; z-index: 3; }
.slider-dot { width: 9px; height: 9px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .72); cursor: pointer; }
.slider-dot.active { width: 24px; border-radius: 999px; background: var(--brand-red); }
.slider-prev, .slider-next { display: none; }
.hero-note { background: #fff; border-bottom: 1px solid var(--line); padding: 18px 0; color: var(--text-muted); }
.hero-note .container { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; justify-content: space-between; }
.category-grid, .service-grid, .focus-grid, .score-grid, .security-grid, .faq-grid, .point-grid { display: grid; gap: 16px; }
.category-grid { grid-template-columns: 1fr; }
.sports-card, .service-card, .focus-card, .score-card, .security-card, .faq-item, .rich-card, .side-panel, .data-panel, .notice-card, .info-box { background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius-md); padding: 22px; box-shadow: 0 10px 24px rgba(0, 0, 0, .05); }
.sports-card h3, .service-card h3, .focus-card h3, .score-card h3, .security-card h3, .faq-item h3, .rich-card h2, .side-panel h2, .info-box h3 { margin: 0 0 10px; line-height: 1.35; color: #151515; }
.sports-card p, .service-card p, .focus-card p, .score-card p, .security-card p, .faq-item p, .rich-card p, .side-panel p, .info-box p { margin: 0; color: var(--text-muted); }
.card-tag, .status-tag, .score-tag { display: inline-flex; align-items: center; width: fit-content; margin-bottom: 12px; padding: 4px 10px; border-radius: 999px; background: rgba(213, 5, 5, 0.1); color: var(--brand-red); font-size: 12px; font-weight: 800; }
.focus-card { position: relative; overflow: hidden; }
.focus-card::after { content: ""; width: 80px; height: 80px; background: rgba(213, 5, 5, .08); border-radius: 50%; position: absolute; right: -24px; bottom: -24px; }
.split-layout { display: grid; gap: 26px; align-items: center; }
.split-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow); object-fit: cover; }
.feature-list, .clean-list { display: grid; gap: 12px; padding: 0; margin: 18px 0 0; list-style: none; }
.feature-list li, .clean-list li { padding-left: 28px; position: relative; color: #404040; }
.feature-list li::before, .clean-list li::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--brand-red); position: absolute; left: 0; top: .68em; }
.score-panel { background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--line); padding: 22px; box-shadow: var(--shadow); }
.data-panel { display: grid; gap: 14px; }
.mini-score { display: grid; gap: 8px; padding: 14px; background: var(--bg-soft); border-radius: 14px; }
.mini-score strong { color: #111; }
.app-showcase { background: linear-gradient(180deg, #fff, #fafafa); }
.app-actions { margin-top: 20px; }
.platform-columns { display: grid; gap: 18px; }
.platform-list { display: grid; gap: 14px; }
.platform-list .info-box { box-shadow: none; }
.responsible-play-section .notice-card { border-left: 5px solid var(--brand-red); }
.cta-block { background: var(--brand-red); color: #fff; border-radius: var(--radius-lg); padding: 30px; display: grid; gap: 14px; align-items: center; }
.cta-block p, .cta-block h2 { margin: 0; }
.cta-block .main-btn { background: #fff; color: var(--brand-red); box-shadow: none; width: fit-content; }
.sub-hero { background: linear-gradient(180deg, #fff, #f7f7f7); padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.page-layout { display: grid; gap: 24px; }
.rich-card { display: grid; gap: 24px; }
.rich-card section { display: grid; gap: 10px; }
.side-panel { align-self: start; display: grid; gap: 18px; }
.side-panel a { color: var(--brand-red); font-weight: 800; }
.steps { counter-reset: step; display: grid; gap: 14px; padding: 0; margin: 18px 0 0; list-style: none; }
.steps li { counter-increment: step; position: relative; padding: 16px 16px 16px 58px; background: var(--bg-soft); border-radius: 14px; color: #3f3f3f; }
.steps li::before { content: counter(step); position: absolute; left: 16px; top: 16px; width: 28px; height: 28px; border-radius: 50%; background: var(--brand-red); color: #fff; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; }
.faq-page-list { display: grid; gap: 14px; }
.faq-page-list .faq-item { box-shadow: none; }
.site-footer { background: #151515; color: #ddd; padding-top: 44px; }
.footer-grid { display: grid; gap: 26px; }
.footer-logo { height: 42px; width: auto; background: #fff; border-radius: 10px; padding: 4px 8px; margin-bottom: 14px; }
.site-footer h3 { margin: 0 0 12px; color: #fff; }
.site-footer p { margin: 0; color: #bdbdbd; }
.site-footer a { display: block; color: #cfcfcf; margin: 8px 0; }
.site-footer a:hover { color: #fff; }
.footer-bottom { margin-top: 34px; padding: 18px 0; border-top: 1px solid rgba(255,255,255,.12); color: #aaa; font-size: 14px; }
@media (min-width: 640px) {
    .category-grid, .service-grid, .score-grid, .security-grid, .faq-grid, .point-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .focus-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .platform-columns { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 920px) {
    .top-red-bar { display: block; }
    .mobile-header, .mobile-nav { display: none !important; }
    .desktop-header { display: block; background: #fff; }
    .desktop-inner { height: 78px; display: flex; align-items: center; gap: 18px; }
    .desktop-action { margin-left: 4px; }
    .slide img { height: 520px; min-height: 520px; }
    .slide-caption { bottom: 72px; gap: 18px; }
    .slide-caption p { font-size: 18px; }
    .slider-prev, .slider-next { display: flex; position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: 50%; border: 0; background: rgba(255,255,255,.86); color: #111; font-size: 24px; cursor: pointer; z-index: 4; }
    .slider-prev { left: 24px; }
    .slider-next { right: 24px; }
    .category-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .service-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .focus-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .score-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .security-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .split-layout { grid-template-columns: 1.04fr .96fr; }
    .split-layout.reverse { grid-template-columns: .96fr 1.04fr; }
    .page-layout { grid-template-columns: minmax(0, 1fr) 340px; }
    .footer-grid { grid-template-columns: 1.4fr .8fr .8fr 1fr; }
    .cta-block { grid-template-columns: 1fr auto; padding: 38px; }
}
@media (min-width: 1120px) {
    .desktop-nav { gap: 12px; }
    .desktop-nav a { padding: 10px 16px; }
}