:root {
    --brand: rgb(213, 5, 5);
    --brand-dark: rgb(174, 0, 0);
    --text: #161616;
    --muted: #666;
    --light: #f6f6f6;
    --line: #e8e8e8;
    --white: #fff;
    --shadow: 0 12px 34px rgba(0, 0, 0, .07);
    --radius: 18px;
}
* { 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: var(--white);
    line-height: 1.75;
    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 { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50; }
.mobile-header { height: 62px; display: grid; grid-template-columns: 54px 1fr 78px; align-items: center; padding: 0 14px; background: #fff; }
.menu-toggle { width: 42px; height: 42px; border: 0; background: transparent; padding: 8px; display: grid; gap: 5px; align-content: center; cursor: pointer; }
.menu-toggle span { width: 23px; height: 2px; background: #222; border-radius: 2px; display: block; }
.mobile-logo { justify-self: center; }
.mobile-logo img { height: 34px; width: auto; object-fit: contain; }
.top-action { display: inline-flex; align-items: center; justify-content: center; min-height: 38px; padding: 0 17px; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 700; font-size: 14px; transition: .2s ease; white-space: nowrap; }
.top-action:hover, .main-btn:hover { background: var(--brand-dark); transform: translateY(-1px); }
.mobile-nav { display: none; padding: 8px 16px 16px; background: #fff; border-top: 1px solid var(--line); }
.mobile-nav.open { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mobile-nav a { padding: 10px 12px; background: var(--light); border-radius: 12px; color: #333; font-weight: 600; font-size: 14px; }
.mobile-nav a.active { color: var(--brand); background: rgba(213, 5, 5, .08); }
.desktop-header-wrap { display: none; }
.search-icon { width: 22px; height: 22px; border: 2px solid #333; border-radius: 50%; display: inline-block; position: relative; flex: 0 0 auto; }
.search-icon:after { content: ""; position: absolute; width: 8px; height: 2px; background: #333; right: -6px; bottom: 0; transform: rotate(45deg); border-radius: 2px; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 24px; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 800; box-shadow: 0 12px 24px rgba(213, 5, 5, .18); transition: .2s ease; }
.ghost-link { display: inline-flex; align-items: center; color: var(--brand); font-weight: 800; }
.ghost-link:after { content: "›"; padding-left: 6px; font-size: 20px; line-height: 1; }
.section { padding: 58px 0; }
.section.soft { background: var(--light); }
.section-title { max-width: 760px; margin-bottom: 26px; }
.section-title.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; padding: 5px 12px; border-radius: 999px; background: rgba(213, 5, 5, .08); color: var(--brand); font-size: 13px; font-weight: 800; margin-bottom: 12px; }
h1, h2, h3 { margin: 0 0 12px; line-height: 1.25; }
h1 { font-size: clamp(30px, 7vw, 58px); letter-spacing: -1px; }
h2 { font-size: clamp(24px, 4.5vw, 38px); }
h3 { font-size: 20px; }
p { margin: 0 0 14px; color: var(--muted); }
.official-hero, .page-hero { background: linear-gradient(180deg, #fff 0%, #fafafa 100%); }
.hero-grid, .split-grid { display: grid; gap: 28px; align-items: center; }
.hero-copy { padding: 46px 0 20px; }
.hero-copy p { font-size: 16px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0 26px; }
.hero-tags span, .tag { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px; color: #333; font-size: 13px; font-weight: 700; box-shadow: 0 8px 18px rgba(0,0,0,.04); }
.hero-media { border-radius: 28px; overflow: hidden; background: #fff; box-shadow: var(--shadow); position: relative; }
.hero-media img { width: 100%; min-height: 260px; object-fit: cover; }
.score-strip { display: grid; gap: 12px; margin-top: 18px; }
.score-mini { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--brand); border-radius: 14px; padding: 12px 14px; box-shadow: 0 8px 18px rgba(0,0,0,.04); }
.score-mini strong { display: block; color: #111; }
.score-mini span { color: var(--muted); font-size: 13px; }
.category-grid, .service-grid, .info-grid, .security-grid, .faq-grid { display: grid; gap: 18px; }
.category-card, .service-card, .info-card, .security-card, .faq-item, .score-panel, .data-panel, .notice-box, .content-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: 0 10px 24px rgba(0,0,0,.04); }
.category-card h3, .service-card h3, .info-card h3, .security-card h3 { color: #111; }
.card-label { display: inline-flex; padding: 4px 10px; background: rgba(213, 5, 5, .08); color: var(--brand); border-radius: 999px; font-size: 12px; font-weight: 800; margin-bottom: 10px; }
.service-card { border-top: 4px solid var(--brand); }
.sports-showcase, .app-showcase, .platform-info, .security-section, .responsible-play-section { border-radius: 28px; }
.visual-card { border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.visual-card img { width: 100%; height: 100%; min-height: 260px; object-fit: cover; }
.point-list, .check-list { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 12px; }
.point-list li, .check-list li { position: relative; padding-left: 26px; color: #444; }
.point-list li:before, .check-list li:before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 10px; border-radius: 50%; background: var(--brand); }
.data-cards { display: grid; gap: 16px; margin-top: 20px; }
.data-panel strong, .score-panel strong { display: block; color: var(--brand); font-size: 24px; margin-bottom: 4px; }
.status { display: inline-flex; padding: 3px 9px; border-radius: 999px; background: rgba(213, 5, 5, .08); color: var(--brand); font-weight: 800; font-size: 12px; margin-bottom: 8px; }
.two-column-list { display: grid; gap: 18px; }
.feature-line { padding: 16px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.feature-line h3 { font-size: 18px; }
.notice-box { background: #fff7f7; border-color: rgba(213, 5, 5, .18); }
.notice-box h2, .notice-box h3 { color: #111; }
.faq-item h3 { font-size: 18px; }
.cta-band { background: var(--brand); color: #fff; border-radius: 28px; padding: 34px 24px; text-align: center; }
.cta-band p { color: rgba(255,255,255,.88); max-width: 760px; margin: 0 auto 20px; }
.cta-band .main-btn { background: #fff; color: var(--brand); box-shadow: none; }
.page-hero { padding: 44px 0; }
.page-hero .visual-card img { max-height: 360px; }
.breadcrumb-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.breadcrumb-links a { padding: 8px 12px; border-radius: 999px; background: rgba(213, 5, 5, .08); color: var(--brand); font-weight: 800; font-size: 13px; }
.article-block { display: grid; gap: 18px; }
.article-block .content-card h2 { font-size: 24px; }
.steps { counter-reset: step; display: grid; gap: 16px; margin-top: 20px; }
.step { counter-increment: step; position: relative; padding-left: 58px; min-height: 46px; }
.step:before { content: counter(step); position: absolute; left: 0; top: 0; width: 42px; height: 42px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 900; }
.site-footer { background: #111; color: #fff; padding-top: 46px; }
.footer-grid { display: grid; gap: 26px; }
.footer-logo { height: 38px; width: auto; margin-bottom: 14px; }
.site-footer p, .site-footer a { color: rgba(255,255,255,.72); }
.site-footer a { display: block; margin: 7px 0; }
.site-footer a:hover { color: #fff; }
.site-footer h3 { color: #fff; font-size: 18px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 34px; padding: 18px; text-align: center; color: rgba(255,255,255,.65); font-size: 13px; }
@media (min-width: 640px) {
    .category-grid, .service-grid, .security-grid { grid-template-columns: repeat(2, 1fr); }
    .data-cards, .score-strip { grid-template-columns: repeat(3, 1fr); }
    .faq-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
    .mobile-header, .mobile-nav { display: none !important; }
    .desktop-header-wrap { display: block; }
    .desktop-header { height: 78px; display: flex; align-items: center; gap: 24px; }
    .desktop-logo img { height: 44px; width: auto; object-fit: contain; }
    .desktop-nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
    .desktop-nav a { font-size: 15px; font-weight: 700; color: #333; position: relative; padding: 25px 0; white-space: nowrap; }
    .desktop-nav a.active, .desktop-nav a:hover { color: var(--brand); }
    .desktop-nav a.active:after { content: ""; position: absolute; left: 0; right: 0; bottom: 18px; height: 3px; border-radius: 4px; background: var(--brand); }
    .hero-grid, .split-grid { grid-template-columns: 1.05fr .95fr; gap: 46px; }
    .hero-copy { padding: 72px 0; }
    .category-grid { grid-template-columns: repeat(3, 1fr); }
    .service-grid { grid-template-columns: repeat(3, 1fr); }
    .info-grid { grid-template-columns: repeat(3, 1fr); }
    .two-column-list { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1.5fr .8fr .8fr 1.2fr; }
    .article-block { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
    .desktop-nav { gap: 26px; }
}