:root{
    --primary: rgb(213, 5, 5);
    --primary-dark: rgb(166, 0, 0);
    --text: #171717;
    --muted: #626262;
    --gray: #f5f5f5;
    --line: #e8e8e8;
    --white: #ffffff;
    --dark: #2b2b2b;
    --radius: 18px;
    --shadow: 0 12px 32px rgba(0,0,0,.08);
}
*{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:1.7;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)}
.mobile-topbar{height:58px;display:grid;grid-template-columns:72px 1fr 86px;align-items:center;padding:0 12px;background:#fff}
.menu-toggle{width:44px;height:44px;border:0;background:#fff;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0 10px;border-radius:12px}
.menu-toggle span{display:block;width:22px;height:2px;background:#1f1f1f;border-radius:2px;transition:.2s}
.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;display:flex;align-items:center;justify-content:center;min-width:0}
.mobile-logo img{height:30px;width:auto;object-fit:contain}
.top-action{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 18px;border-radius:999px;background:var(--primary);color:#fff;font-weight:700;white-space:nowrap;box-shadow:0 8px 16px rgba(213,5,5,.18);transition:.2s}
.top-action:hover,.main-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}
.mobile-nav{display:none;background:#fff;border-top:1px solid var(--line);padding:8px 16px 16px;grid-template-columns:1fr 1fr;gap:8px}
.mobile-nav.open{display:grid}
.mobile-nav a{padding:10px 12px;border-radius:12px;background:#f7f7f7;font-size:14px;color:#333}
.mobile-nav a.active{background:rgba(213,5,5,.08);color:var(--primary);font-weight:700}
.desktop-topbar{display:none;height:72px;align-items:center;gap:28px}
.desktop-logo img{height:40px;width:auto;object-fit:contain}
.desktop-nav{display:flex;align-items:center;gap:22px;flex:1;justify-content:center}
.desktop-nav a{font-size:15px;font-weight:600;color:#333;position:relative;padding:24px 0}
.desktop-nav a.active,.desktop-nav a:hover{color:var(--primary)}
.desktop-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;border-radius:6px;background:var(--primary)}
.desktop-tools{display:flex;align-items:center;gap:18px}
.search-icon{width:22px;height:22px;border:2px solid #333;border-radius:50%;display:inline-block;position:relative}
.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 26px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;letter-spacing:.02em;box-shadow:0 12px 22px rgba(213,5,5,.2);transition:.2s}
.section{padding:58px 0}
.light-section{background:var(--gray)}
.section-head{max-width:760px;margin:0 auto 30px;text-align:center}
.section-head h2,.split-copy h2,.app-copy h2,.responsible-box h2,.cta-box h2{font-size:28px;line-height:1.25;margin:10px 0 12px;color:#111}
.section-head p,.split-copy p,.app-copy p,.responsible-box p,.cta-box p{color:var(--muted);margin:0}
.section-badge{display:inline-flex;align-items:center;gap:8px;min-height:28px;padding:4px 12px;border-radius:999px;background:rgba(213,5,5,.08);color:var(--primary);font-size:13px;font-weight:800}
.section-badge:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary)}
.sports-hero{position:relative;overflow:hidden;background:#fff}
.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.88) 44%,rgba(255,255,255,.68) 100%),url('banner.jpg') center/cover no-repeat;z-index:0}
.hero-wrap{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:28px;align-items:center;min-height:620px;padding:64px 0}
.hero-copy h1{font-size:36px;line-height:1.15;margin:16px 0;color:#111;letter-spacing:-.04em}
.hero-copy p{font-size:16px;color:#484848;margin:0 0 24px;max-width:680px}
.hero-panel{display:grid;gap:14px}
.score-card{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}
.score-card span,.score-card em{display:block;color:#666;font-style:normal;font-size:13px}
.score-card strong{display:block;font-size:26px;line-height:1.2;margin:8px 0;color:#111}
.score-card.live{border-color:rgba(213,5,5,.3)}
.category-grid{display:grid;grid-template-columns:1fr;gap:16px}
.sports-card,.service-card,.data-card,.content-card,.side-card,.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 24px rgba(0,0,0,.04)}
.sports-card{padding:22px;transition:.2s}
.sports-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.sports-card h3,.service-card h3,.data-card h3{margin:0 0 8px;font-size:20px;color:#111}
.sports-card p,.service-card p,.data-card p,.content-card p,.side-card p,.mini-card p{margin:0;color:var(--muted)}
.sports-card a{display:inline-flex;margin-top:16px;color:var(--primary);font-weight:800}
.service-grid,.data-grid{display:grid;grid-template-columns:1fr;gap:16px}
.service-card{padding:24px;position:relative;overflow:hidden}
.service-card span{display:inline-flex;align-items:center;justify-content:center;width:38px;height:28px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;margin-bottom:14px}
.service-card:after{content:"";position:absolute;right:-28px;bottom:-28px;width:90px;height:90px;border-radius:50%;background:rgba(213,5,5,.07)}
.split-wrap,.app-wrap,.content-layout,.two-col{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.split-image,.app-image{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff;border:1px solid var(--line)}
.split-image img,.app-image img{width:100%;height:auto;object-fit:cover}
.score-panel{display:grid;gap:12px;margin-top:22px}
.score-panel div{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px}
.score-panel strong{grid-column:1;color:#111}
.score-panel span{grid-column:1;color:#666;font-size:13px}
.score-panel b{grid-row:1/3;grid-column:2;color:var(--primary);font-size:22px}
.app-showcase{background:linear-gradient(180deg,#fff 0%,#f7f7f7 100%)}
.app-wrap{background:#fff;border:1px solid var(--line);border-radius:28px;padding:24px;box-shadow:var(--shadow)}
.data-card{padding:22px}
.responsible-section{background:#fff}
.responsible-box{background:#fff5f5;border:1px solid rgba(213,5,5,.18);border-radius:24px;padding:28px;box-shadow:0 10px 24px rgba(213,5,5,.05)}
.faq-list{display:grid;gap:12px;max-width:880px;margin:0 auto}
.faq-list.wide{max-width:980px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 18px}
.faq-item summary{cursor:pointer;font-weight:800;padding:16px 0;color:#111}
.faq-item p{margin:0 0 16px;color:var(--muted)}
.cta-section{padding-top:20px;background:var(--gray)}
.cta-box{text-align:center;background:var(--primary);color:#fff;border-radius:28px;padding:34px 22px;box-shadow:0 14px 34px rgba(213,5,5,.2)}
.cta-box h2,.cta-box p{color:#fff}
.cta-box p{margin-bottom:20px;opacity:.9}
.cta-box .main-btn{background:#fff;color:var(--primary);box-shadow:none}
.page-hero{background:linear-gradient(135deg,#fff 0%,#fff6f6 48%,#f5f5f5 100%);padding:54px 0;border-bottom:1px solid var(--line)}
.compact-hero{padding:48px 0}
.page-hero h1{font-size:34px;line-height:1.18;margin:14px 0 12px;color:#111}
.page-hero p{max-width:820px;color:#555;margin:0}
.content-layout{align-items:start}
.content-main{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 10px 24px rgba(0,0,0,.04)}
.content-main h2{font-size:22px;margin:0 0 10px;color:#111}
.content-main h2:not(:first-child){margin-top:26px}
.content-main p{color:#4d4d4d;margin:0 0 16px}
.side-card{padding:24px;position:sticky;top:92px}
.side-card h2,.side-card h3{margin:0 0 12px;color:#111}
.stack-card{display:grid;gap:12px}
.stack-card h2{margin-bottom:0}
.mini-card{padding:16px;box-shadow:none;background:#fafafa}
.mini-card h3{margin:0 0 6px;font-size:16px;color:var(--primary)}
.notice-box{display:grid;gap:6px;margin-top:20px;border-left:4px solid var(--primary);background:#fff7f7;padding:16px;border-radius:14px;color:#444}
.notice-box strong{color:var(--primary)}
.step-list{display:grid;gap:14px;margin:0;padding:0;list-style:none;counter-reset:steps}
.step-list li{counter-increment:steps;display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;padding:14px;border:1px solid var(--line);border-radius:16px;background:#fafafa}
.step-list li:before{content:counter(steps);width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.step-list strong,.step-list span{display:block}.step-list span{color:var(--muted)}
.check-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.check-list li{position:relative;padding-left:28px;color:#4b4b4b}
.check-list li:before{content:"";position:absolute;left:0;top:.55em;width:12px;height:12px;border-radius:50%;background:var(--primary)}
.warn-card{background:#fff7f7;border-color:rgba(213,5,5,.18)}
.site-footer{background:#202020;color:#fff;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:44px 0}
.footer-logo img{height:36px;margin-bottom:12px}
.site-footer p,.site-footer a,.footer-note{color:#c9c9c9;font-size:14px}
.site-footer h3{font-size:17px;margin:0 0 12px;color:#fff}
.site-footer a{display:block;margin:8px 0}.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:6px;text-align:center;padding:16px;color:#bfbfbf;font-size:13px}
@media (min-width:640px){
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .service-grid,.data-grid{grid-template-columns:repeat(2,1fr)}
    .hero-panel{grid-template-columns:repeat(3,1fr)}
}
@media (min-width:900px){
    .mobile-topbar,.mobile-nav{display:none!important}
    .desktop-topbar{display:flex}
    .hero-wrap{grid-template-columns:1.08fr .92fr;min-height:650px}
    .hero-copy h1{font-size:56px}
    .hero-panel{grid-template-columns:1fr;max-width:390px;justify-self:end}
    .category-grid{grid-template-columns:repeat(3,1fr)}
    .service-grid,.data-grid{grid-template-columns:repeat(3,1fr)}
    .split-wrap{grid-template-columns:1fr 1fr;gap:56px}
    .split-wrap.reverse .split-copy{order:1}.split-wrap.reverse .split-image{order:2}
    .app-wrap{grid-template-columns:1fr .82fr;padding:38px 46px}
    .content-layout{grid-template-columns:minmax(0,1fr) 340px;gap:30px}
    .two-col{grid-template-columns:1fr 1fr;align-items:start}
    .page-hero h1{font-size:46px}
    .footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr}
    .footer-bottom{flex-direction:row;justify-content:center;gap:24px}
}
@media (min-width:1120px){
    .desktop-nav{gap:28px}
    .category-grid{grid-template-columns:repeat(6,1fr)}
    .sports-card{padding:20px}
    .sports-card h3{font-size:18px}
}