:root{
    --main: rgb(213, 5, 5);
    --main-dark: rgb(176, 0, 0);
    --text: #171717;
    --muted: #666;
    --soft: #f6f6f6;
    --line: #e8e8e8;
    --card: #fff;
    --dark: #2b2b2b;
}
*{box-sizing:border-box}
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);background:#fff;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,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,.04)}
.mobile-topbar{height:58px;display:grid;grid-template-columns:72px 1fr 82px;align-items:center;padding:0 12px;background:#fff}
.menu-toggle{width:42px;height:42px;border:0;background:#fff;border-radius:12px;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0 11px;cursor:pointer}
.menu-toggle span{height:2px;width:20px;background:#222;border-radius:2px;transition:.25s}
.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{justify-self:center}
.mobile-logo img{height:34px;width:auto}
.logo img,.desktop-logo img{height:42px;width:auto}
.top-action{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 16px;background:var(--main);color:#fff;border-radius:999px;font-weight:700;font-size:14px;box-shadow:0 10px 22px rgba(213,5,5,.18);transition:.2s}
.top-action:hover,.main-btn:hover{background:var(--main-dark);transform:translateY(-1px)}
.mobile-nav{display:none;background:#fff;border-top:1px solid var(--line);padding:8px 14px 14px}
.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mobile-nav a{padding:10px 12px;border-radius:12px;background:#fafafa;font-size:14px;color:#333}
.mobile-nav a.active{color:var(--main);font-weight:700;background:#fff2f2;border:1px solid rgba(213,5,5,.18)}
.desktop-topbar{display:none;height:74px;align-items:center;gap:26px;background:#fff}
.desktop-logo{flex:0 0 auto}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:24px;flex:1;white-space:nowrap}
.desktop-nav a{font-size:15px;color:#333;font-weight:600;position:relative;padding:24px 0}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--main)}
.desktop-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:14px;height:3px;background:var(--main);border-radius:3px}
.search-icon{width:22px;height:22px;border:2px solid #333;border-radius:50%;position:relative;display:inline-block;flex:0 0 auto}
.search-icon:after{content:"";position:absolute;width:9px;height:2px;background:#333;border-radius:2px;right:-7px;bottom:-3px;transform:rotate(45deg)}
.desktop-action{flex:0 0 auto}
.section{padding:56px 0}
.section.soft{background:var(--soft)}
.section-title{font-size:28px;line-height:1.28;margin:0 0 14px;font-weight:800;letter-spacing:-.02em;color:#111}
.section-lead{margin:0 0 26px;color:#555;font-size:16px;max-width:820px}
.official-hero{background:linear-gradient(180deg,#fff 0%,#fff7f7 100%);padding:34px 0 54px;overflow:hidden}
.hero-wrap{display:grid;gap:28px;align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--main);font-weight:800;background:#fff;border:1px solid rgba(213,5,5,.18);padding:6px 12px;border-radius:999px;margin-bottom:14px;font-size:14px}
.hero h1{font-size:34px;line-height:1.18;margin:0 0 16px;color:#111;letter-spacing:-.03em}
.hero p{font-size:16px;color:#4d4d4d;margin:0 0 20px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 24px}
.hero-tags span{background:#fff;color:#333;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:14px}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--main);color:#fff;border-radius:999px;font-weight:800;min-height:46px;padding:0 24px;box-shadow:0 12px 24px rgba(213,5,5,.2);transition:.2s;border:none}
.ghost-link{display:inline-flex;align-items:center;color:var(--main);font-weight:800;margin-left:14px}
.hero-media{position:relative;border-radius:26px;overflow:hidden;background:#fff;border:1px solid rgba(213,5,5,.16);box-shadow:0 20px 40px rgba(0,0,0,.08);padding:12px}
.hero-media img{border-radius:20px;width:100%;height:auto}
.data-strip{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.data-strip div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:13px}
.data-strip strong{display:block;color:var(--main);font-size:20px;line-height:1.2}
.data-strip span{font-size:13px;color:#666}
.category-grid,.service-grid,.security-grid,.feature-grid,.link-grid{display:grid;gap:16px}
.category-grid{grid-template-columns:1fr}
.sports-card,.service-card,.security-card,.faq-item,.info-card,.score-card,.data-card,.notice-card,.step-card,.plain-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 12px 26px rgba(0,0,0,.045)}
.sports-card h3,.service-card h3,.security-card h3,.info-card h3,.score-card h3,.data-card h3,.notice-card h3,.step-card h3,.plain-card h3{margin:0 0 10px;font-size:20px;color:#111;line-height:1.35}
.sports-card p,.service-card p,.security-card p,.info-card p,.score-card p,.data-card p,.notice-card p,.step-card p,.plain-card p{margin:0;color:#555}
.text-link{display:inline-flex;margin-top:14px;color:var(--main);font-weight:800}
.badge{display:inline-flex;color:var(--main);background:#fff1f1;border:1px solid rgba(213,5,5,.18);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:800;margin-bottom:12px}
.service-grid{grid-template-columns:1fr}
.showcase{display:grid;gap:26px;align-items:center}
.showcase img{border-radius:24px;border:1px solid var(--line);box-shadow:0 18px 38px rgba(0,0,0,.07);background:#fff}
.point-list{display:grid;gap:12px;margin-top:20px}
.point{padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:16px}
.point strong{display:block;color:#111;margin-bottom:4px}
.point span{display:block;color:#5d5d5d;font-size:14px}
.score-panel{display:grid;gap:16px}
.score-card{position:relative;overflow:hidden}
.score-card:before{content:"";position:absolute;top:0;left:0;width:5px;height:100%;background:var(--main)}
.status{display:inline-flex;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:800;color:var(--main);background:#fff0f0;margin-bottom:8px}
.score-line{display:flex;justify-content:space-between;align-items:center;gap:10px;font-weight:800;color:#111;margin-top:8px}
.score-line em{font-style:normal;color:var(--main)}
.data-panel{display:grid;grid-template-columns:1fr;gap:16px;margin-top:20px}
.app-showcase{background:#fff7f7}
.platform-info{display:grid;gap:22px;align-items:stretch}
.platform-info .column{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 12px 26px rgba(0,0,0,.04)}
.platform-info .column h3{margin:0 0 14px;font-size:22px}
.mini-list{display:grid;gap:14px}
.mini-list div{padding:14px;border-radius:16px;background:#fafafa;border:1px solid var(--line)}
.mini-list strong{display:block;color:#111;margin-bottom:5px}
.mini-list p{margin:0;color:#555;font-size:15px}
.security-section .security-grid{grid-template-columns:1fr}
.responsible-play-section{background:#2b2b2b;color:#fff}
.responsible-play-section .section-title,.responsible-play-section h3{color:#fff}
.responsible-play-section .section-lead,.responsible-play-section p{color:#e5e5e5}
.notice-grid{display:grid;gap:16px}
.notice-card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);box-shadow:none}
.faq-list{display:grid;gap:14px}
.faq-item h3{margin:0 0 8px;font-size:18px;color:#111}
.faq-item p{margin:0;color:#555}
.cta{background:linear-gradient(135deg,var(--main),#a80000);color:#fff;border-radius:26px;padding:30px;display:grid;gap:16px;align-items:center;box-shadow:0 18px 40px rgba(213,5,5,.2)}
.cta h2{margin:0;font-size:26px;line-height:1.3}
.cta p{margin:0;color:#ffe5e5}
.cta .main-btn{background:#fff;color:var(--main);box-shadow:none;justify-self:start}
.page-hero{padding:48px 0;background:linear-gradient(180deg,#fff 0%,#fff6f6 100%);border-bottom:1px solid #f0dddd}
.breadcrumb{color:var(--main);font-weight:800;font-size:14px;margin-bottom:10px}
.page-hero h1{font-size:34px;line-height:1.2;margin:0 0 14px;color:#111}
.page-hero p{margin:0;color:#555;max-width:860px;font-size:16px}
.page-layout{display:grid;gap:24px}
.content-block{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:0 12px 26px rgba(0,0,0,.04)}
.content-block h2{margin:0 0 12px;font-size:24px;line-height:1.3;color:#111}
.content-block p{margin:0 0 14px;color:#555}
.content-block p:last-child{margin-bottom:0}
.icon-list{display:grid;gap:12px;margin-top:16px;padding:0;list-style:none}
.icon-list li{padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#fafafa;color:#555}
.icon-list strong{color:#111}
.steps{display:grid;gap:14px;counter-reset:step}
.step-card{position:relative;padding-left:62px;min-height:76px}
.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:20px;width:28px;height:28px;border-radius:50%;background:var(--main);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.site-footer{background:#111;color:#ddd;padding-top:46px}
.footer-grid{display:grid;gap:26px}
.footer-logo{height:38px;width:auto;margin-bottom:14px}
.site-footer h3{margin:0 0 12px;color:#fff;font-size:18px}
.site-footer p{margin:0;color:#bdbdbd;font-size:14px}
.site-footer a{display:block;color:#d8d8d8;font-size:14px;margin:7px 0}
.site-footer a:hover{color:#fff}
.footer-note{margin-top:10px!important}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding:16px;text-align:center;color:#aaa;font-size:13px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:620px}
th,td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line);font-size:15px}
th{background:#fafafa;color:#111}
td{color:#555}
@media (min-width:640px){
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .security-section .security-grid,.feature-grid,.link-grid{grid-template-columns:repeat(2,1fr)}
    .notice-grid,.data-panel{grid-template-columns:repeat(3,1fr)}
    .cta{grid-template-columns:1fr auto;padding:36px}
    .score-panel{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:900px){
    .mobile-topbar,.mobile-nav{display:none!important}
    .desktop-topbar{display:flex}
    .official-hero{padding:74px 0 80px}
    .hero-wrap{grid-template-columns:1.02fr .98fr;gap:50px}
    .hero h1{font-size:52px}
    .section{padding:76px 0}
    .section-title{font-size:36px}
    .category-grid{grid-template-columns:repeat(3,1fr)}
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .showcase{grid-template-columns:1fr 1fr;gap:46px}
    .showcase.reverse>div:first-child{order:2}
    .platform-info{grid-template-columns:1fr 1fr}
    .security-section .security-grid{grid-template-columns:repeat(3,1fr)}
    .footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr}
    .page-hero{padding:70px 0}
    .page-hero h1{font-size:46px}
    .page-layout{grid-template-columns:2fr 1fr;align-items:start}
}
@media (max-width:380px){
    .mobile-topbar{grid-template-columns:56px 1fr 72px;padding:0 8px}
    .top-action{padding:0 12px;font-size:13px}
    .hero h1,.page-hero h1{font-size:30px}
    .section-title{font-size:25px}
}