:root{
    --main:rgb(213,5,5);
    --main-dark:rgb(176,0,0);
    --text:#1f1f1f;
    --muted:#666;
    --light:#f6f7f9;
    --line:#e8e8e8;
    --white:#fff;
    --dark:#111;
    --radius:18px;
    --shadow:0 12px 28px rgba(0,0,0,.07);
}
*{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{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,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:flex;align-items:center;justify-content:space-between;padding:0 14px;position:relative;background:#fff}
.menu-toggle{position:absolute;opacity:0;pointer-events:none}
.menu-button{width:42px;height:42px;display:flex;flex-direction:column;justify-content:center;gap:5px;cursor:pointer}
.menu-button span{width:24px;height:2px;background:#222;border-radius:3px;display:block}
.mobile-logo{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:center}
.mobile-logo img{height:34px;max-width:132px;object-fit:contain}
.top-action{display:inline-flex;align-items:center;justify-content:center;padding:8px 18px;border-radius:999px;background:var(--main);color:#fff;font-weight:700;white-space:nowrap;box-shadow:0 8px 18px rgba(213,5,5,.18)}
.top-action:hover,.main-btn:hover{background:var(--main-dark)}
.mobile-nav{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:var(--shadow);padding:8px 16px 16px;grid-template-columns:1fr 1fr;gap:6px;z-index:60}
.mobile-nav a{padding:12px 10px;border-radius:12px;color:#333;background:#f8f8f8;font-weight:600;text-align:center}
.mobile-nav a.active{color:var(--main);background:#fff1f1}
.menu-toggle:checked ~ .mobile-nav{display:grid}
.desktop-header{display:none}
.main-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 26px;border-radius:999px;background:var(--main);color:#fff;font-weight:800;letter-spacing:.02em;box-shadow:0 12px 24px rgba(213,5,5,.2)}
.outline-link,.text-link{display:inline-flex;align-items:center;font-weight:700;color:var(--main);border-bottom:1px solid rgba(213,5,5,.25)}
.section{padding:58px 0}
.section.soft{background:var(--light)}
.section-title{font-size:30px;line-height:1.28;margin:0 0 14px;color:#111}
.section-lead{margin:0 0 26px;color:#555;max-width:820px;font-size:16px}
.hero{background:linear-gradient(180deg,#fff 0%,#fff7f7 100%);padding:40px 0 58px;overflow:hidden}
.hero-grid{display:grid;gap:28px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;padding:6px 12px;border-radius:999px;background:#fff1f1;color:var(--main);font-weight:800;margin-bottom:14px}
.hero h1{font-size:34px;line-height:1.18;margin:0 0 16px;color:#111;letter-spacing:-.02em}
.hero p{font-size:16px;color:#4e4e4e;margin:0 0 20px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.tag-row span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #f1dede;color:#444;font-weight:700;font-size:14px}
.hero-image,.image-frame{border-radius:24px;background:#fff;padding:12px;box-shadow:var(--shadow);border:1px solid var(--line)}
.hero-image img,.image-frame img{border-radius:18px;width:100%;object-fit:cover}
.category-grid,.service-grid,.info-grid,.security-grid,.quick-grid{display:grid;gap:18px}
.category-grid{grid-template-columns:1fr}
.sports-card,.service-card,.info-card,.security-card,.faq-item,.score-card,.data-item,.notice-box,.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 8px 20px rgba(0,0,0,.04)}
.sports-card h3,.service-card h3,.info-card h3,.security-card h3,.score-card h3,.data-item h3,.contact-card h3{margin:0 0 10px;font-size:20px;color:#111}
.sports-card p,.service-card p,.info-card p,.security-card p,.score-card p,.data-item p,.contact-card p{margin:0 0 14px;color:#555}
.red-label{display:inline-flex;padding:5px 10px;border-radius:999px;background:#fff1f1;color:var(--main);font-size:13px;font-weight:800;margin-bottom:12px}
.split{display:grid;gap:26px;align-items:center}
.feature-list{display:grid;gap:12px;margin-top:18px}
.feature-list div{padding:14px 16px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.feature-list strong{display:block;color:#111;margin-bottom:4px}
.feature-list span{color:#666;font-size:14px}
.score-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:var(--shadow)}
.score-row{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;padding:14px;border-radius:16px;background:#fafafa;margin-bottom:10px}
.score-row:last-child{margin-bottom:0}
.score-row strong{text-align:center;color:#111}.score-row em{font-style:normal;color:var(--main);font-weight:900;font-size:22px}.score-row span{font-size:13px;color:#777;text-align:center}
.score-cards{display:grid;gap:16px;margin-top:18px}.score-card{position:relative}.score-card:before{content:"";position:absolute;top:0;left:22px;right:22px;height:3px;background:var(--main);border-radius:3px}
.app-showcase{background:#fff7f7;border-top:1px solid #ffe0e0;border-bottom:1px solid #ffe0e0}
.platform-info-section .info-card ul,.notice-box ul,.content-section ul{margin:12px 0 0;padding-left:18px;color:#555}.platform-info-section .info-card li,.notice-box li,.content-section li{margin:8px 0}
.security-section{background:#fff}.responsible-section{background:#fafafa}.responsible-box{border-left:5px solid var(--main);background:#fff;padding:24px;border-radius:18px;box-shadow:0 8px 20px rgba(0,0,0,.04)}
.faq-list{display:grid;gap:14px}.faq-item h3{margin:0 0 8px;font-size:18px}.faq-item p{margin:0;color:#555}.faq-page .faq-item{padding:24px}
.cta-strip{background:linear-gradient(135deg,var(--main),#a80000);color:#fff;border-radius:26px;padding:34px;text-align:center;box-shadow:var(--shadow)}
.cta-strip h2{margin:0 0 12px;font-size:28px}.cta-strip p{margin:0 auto 20px;max-width:780px;color:#fff4f4}.cta-strip .main-btn{background:#fff;color:var(--main)}
.inner-hero{background:#fff7f7;padding:44px 0;border-bottom:1px solid #ffe5e5}.inner-hero h1{font-size:34px;line-height:1.25;margin:0 0 12px}.inner-hero p{margin:0;color:#555;max-width:850px}
.content-section{padding:46px 0}.content-section h2{font-size:26px;margin:0 0 12px}.content-section p{color:#555;margin:0 0 16px}.two-column{display:grid;gap:22px}.steps{counter-reset:step;display:grid;gap:14px;margin:22px 0}.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;grid-template-columns:auto 1fr;gap:14px}.step:before{counter-increment:step;content:counter(step);width:34px;height:34px;border-radius:50%;background:var(--main);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}.step strong{display:block;margin-bottom:4px}.step span{color:#666}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.related-links a{padding:9px 14px;border-radius:999px;background:#fff1f1;color:var(--main);font-weight:700}.data-panel{display:grid;gap:12px}.data-item{display:block}.pill-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.pill-list span{padding:8px 12px;border-radius:999px;background:#f7f7f7;border:1px solid var(--line);font-weight:700;color:#444}.download-box{text-align:center;background:#fff;border:1px solid var(--line);border-radius:26px;padding:30px;box-shadow:var(--shadow)}.download-box p{max-width:760px;margin:0 auto 20px;color:#555}.contact-grid{display:grid;gap:18px}
.site-footer{background:#111;color:#eee;padding-top:42px}.footer-grid{display:grid;gap:24px}.footer-brand img{height:42px;margin-bottom:14px}.footer-brand p{color:#cfcfcf;margin:0}.site-footer h3{margin:0 0 12px;color:#fff;font-size:18px}.site-footer a{display:block;color:#cfcfcf;margin:8px 0}.site-footer a:hover{color:#fff}.footer-bottom{margin-top:30px;padding:18px 16px;text-align:center;border-top:1px solid rgba(255,255,255,.1);color:#cfcfcf;font-size:14px}
@media (min-width:640px){.category-grid,.service-grid,.info-grid,.security-grid,.quick-grid,.score-cards,.contact-grid{grid-template-columns:repeat(2,1fr)}.hero h1,.inner-hero h1{font-size:42px}.section-title{font-size:36px}}
@media (min-width:900px){.mobile-header{display:none}.desktop-header{height:76px;display:flex;align-items:center;gap:26px;width:min(1180px,calc(100% - 32px));margin:0 auto}.desktop-logo img{height:44px;max-width:160px;object-fit:contain}.desktop-nav{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}.desktop-nav a{padding:10px 12px;border-radius:999px;color:#333;font-weight:700;white-space:nowrap}.desktop-nav a.active,.desktop-nav a:hover{color:var(--main);background:#fff1f1}.search-icon{width:28px;height:28px;border:2px solid #333;border-radius:50%;position:relative;display:inline-block;flex:0 0 auto}.search-icon:after{content:"";width:10px;height:2px;background:#333;position:absolute;right:-7px;bottom:1px;transform:rotate(45deg);border-radius:2px}.hero{padding:70px 0}.hero-grid,.split,.two-column{grid-template-columns:1.05fr .95fr}.hero h1{font-size:54px}.category-grid{grid-template-columns:repeat(3,1fr)}.service-grid{grid-template-columns:repeat(3,1fr)}.info-grid,.security-grid,.contact-grid{grid-template-columns:repeat(3,1fr)}.score-cards{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}.section{padding:76px 0}.content-section{padding:64px 0}}
@media (min-width:1120px){.desktop-nav a{padding:10px 16px}.quick-grid{grid-template-columns:repeat(4,1fr)}}