:root{
    --primary: rgb(213, 5, 5);
    --primary-dark: rgb(176, 0, 0);
    --text: #151515;
    --muted: #5e6470;
    --light: #f6f6f6;
    --line: #ececec;
    --card: #ffffff;
    --deep: #252525;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;background:#fff;color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.desktop-header{display:none}
.mobile-header{height:62px;display:grid;grid-template-columns:72px 1fr 86px;align-items:center;padding:0 14px;background:#fff}
.mobile-logo{justify-self:center}.mobile-logo img{height:36px;width:auto}.brand img{height:48px;width:auto}
.menu-toggle{width:42px;height:42px;border:0;background:#fff;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0;cursor:pointer}
.menu-toggle span{display:block;width:24px;height:2px;background:#222;border-radius:5px;margin-left:3px}
.mobile-action,.top-action{background:var(--primary);color:#fff;border-radius:999px;padding:9px 17px;font-weight:700;text-align:center;box-shadow:0 8px 18px rgba(213,5,5,.16)}
.mobile-action{font-size:14px;justify-self:end;padding:8px 15px}.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:8px 18px 16px}.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mobile-nav a{padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:#fafafa;font-size:14px}.mobile-nav a.active{color:var(--primary);border-color:rgba(213,5,5,.28);background:rgba(213,5,5,.05)}
.search-icon{position:relative;width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:inline-block;background:#fff}.search-icon:before{content:"";position:absolute;width:11px;height:11px;border:2px solid #555;border-radius:50%;left:9px;top:8px}.search-icon:after{content:"";position:absolute;width:9px;height:2px;background:#555;transform:rotate(45deg);left:20px;top:22px;border-radius:2px}
section{padding:56px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700;font-size:14px;letter-spacing:.5px}.eyebrow:before{content:"";width:22px;height:3px;border-radius:3px;background:var(--primary)}
h1,h2,h3{line-height:1.25;margin:0 0 16px;color:#111}h1{font-size:34px}h2{font-size:28px}h3{font-size:20px}p{margin:0 0 14px;color:var(--muted)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:999px;padding:12px 24px;font-weight:700;box-shadow:0 10px 22px rgba(213,5,5,.18);transition:.2s ease}.main-btn:hover,.top-action:hover,.mobile-action:hover{background:var(--primary-dark);transform:translateY(-1px)}
.text-link{color:var(--primary);font-weight:700}.hero{padding:34px 0 50px;background:linear-gradient(180deg,#fff 0%,#f8f8f8 100%)}.hero-grid{display:grid;gap:28px;align-items:center}.hero h1{font-size:36px}.hero .lead{font-size:16px;color:#3d4148}.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.hero-tags span{border:1px solid rgba(213,5,5,.18);background:#fff;color:#3a3a3a;border-radius:999px;padding:8px 12px;font-size:14px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.hero-note{font-size:13px;color:#727782}.hero-visual{background:#fff;border:1px solid var(--line);border-radius:24px;padding:12px;box-shadow:0 18px 38px rgba(0,0,0,.06)}.hero-visual img{border-radius:18px;min-height:260px;object-fit:cover;width:100%}
.section-head{max-width:760px;margin:0 auto 28px;text-align:center}.section-head p{font-size:15px}.category-grid,.service-grid,.security-grid,.detail-grid,.data-cards,.quick-grid{display:grid;gap:18px}.category-grid{grid-template-columns:1fr}.sports-card,.service-card,.score-card,.data-card,.faq-item,.info-card,.detail-card,.notice-box,.contact-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 12px 26px rgba(0,0,0,.04)}.sports-card h3,.service-card h3,.detail-card h3{display:flex;align-items:center;gap:9px}.sports-card h3:before,.detail-card h3:before{content:"";width:9px;height:24px;background:var(--primary);border-radius:6px}.sports-card a,.related-links a{color:var(--primary);font-weight:700}.tag{display:inline-block;background:rgba(213,5,5,.08);color:var(--primary);border-radius:999px;padding:5px 10px;font-size:13px;font-weight:700;margin-bottom:12px}.service-card{position:relative;overflow:hidden}.service-card:after{content:"";position:absolute;right:-25px;top:-25px;width:76px;height:76px;border-radius:50%;background:rgba(213,5,5,.07)}
.feature-split{display:grid;gap:26px;align-items:center}.feature-split img{border-radius:24px;border:1px solid var(--line);box-shadow:0 18px 35px rgba(0,0,0,.06);object-fit:cover;width:100%}.feature-list{display:grid;gap:12px;margin-top:18px}.feature-list li,.check-list li{list-style:none;padding:12px 14px;border:1px solid var(--line);background:#fff;border-radius:14px;color:#4f5560}.feature-list,.check-list{padding:0;margin-left:0}.feature-list strong,.check-list strong{color:#151515}.score-panel{background:#f7f7f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.score-board{display:grid;gap:18px}.score-card{display:grid;gap:10px}.score-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#777}.status{display:inline-flex;padding:4px 9px;border-radius:999px;background:rgba(213,5,5,.08);color:var(--primary);font-weight:700}.teams{display:grid;gap:8px}.team-line{display:flex;align-items:center;justify-content:space-between;padding:10px;border-radius:12px;background:#fafafa}.team-line strong{font-size:20px;color:#111}.data-cards{margin-top:18px}.data-card strong{font-size:26px;color:var(--primary);display:block}.app-showcase{background:#fff}.app-box{background:#f8f8f8;border-radius:28px;padding:24px;border:1px solid var(--line)}.platform-info{background:#f8f8f8}.two-column{display:grid;gap:18px}.info-card h3{color:#111}.security-section .security-grid{grid-template-columns:1fr}.responsible-section{background:#fff}.responsible-box{border-left:5px solid var(--primary);background:#fff7f7;border-radius:18px;padding:24px}.faq-list{display:grid;gap:14px}.faq-item h3{font-size:18px;margin-bottom:8px}.cta{background:linear-gradient(135deg,rgba(213,5,5,.95),rgba(165,0,0,.95));color:#fff;text-align:center}.cta h2,.cta p{color:#fff}.cta .main-btn{background:#fff;color:var(--primary)}.cta .main-btn:hover{background:#f4f4f4}.page-hero{background:linear-gradient(180deg,#fff 0%,#f7f7f7 100%);padding:54px 0}.page-hero .container{max-width:980px}.page-hero p{font-size:16px;color:#444}.content-section{padding:44px 0}.content-narrow{max-width:960px;margin:0 auto}.detail-grid{grid-template-columns:1fr}.advice-box{background:#f8f8f8;border:1px solid var(--line);border-radius:20px;padding:24px;margin-top:22px}.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.related-links a{border:1px solid rgba(213,5,5,.18);border-radius:999px;padding:8px 14px;background:#fff}.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:flex;gap:14px}.step:before{counter-increment:step;content:counter(step);width:32px;height:32px;flex:0 0 32px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}.site-footer{background:#222;color:#fff;padding:44px 0 18px}.site-footer p,.site-footer a{color:#cfd2d8}.footer-grid{display:grid;gap:24px}.footer-grid h3{color:#fff;font-size:16px;margin-bottom:10px}.footer-grid a{display:block;margin:7px 0;font-size:14px}.footer-logo{height:42px;width:auto;margin-bottom:14px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;font-size:13px}.footer-bottom p{margin:0;color:#b9bdc5}.contact-grid{display:grid;gap:18px}.kbd{display:inline-block;background:#f2f2f2;border-radius:8px;padding:2px 8px;color:#333;font-weight:700}
@media (min-width: 700px){
    h1{font-size:44px}h2{font-size:34px}.hero h1{font-size:48px}.category-grid{grid-template-columns:repeat(2,1fr)}.service-grid{grid-template-columns:repeat(2,1fr)}.security-section .security-grid{grid-template-columns:repeat(2,1fr)}.detail-grid{grid-template-columns:repeat(2,1fr)}.data-cards{grid-template-columns:repeat(3,1fr)}.score-board{grid-template-columns:1fr 1fr}.two-column{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}.contact-grid{grid-template-columns:repeat(3,1fr)}
}
@media (min-width: 980px){
    .mobile-header,.mobile-nav{display:none}.desktop-header{height:78px;display:flex;align-items:center;gap:24px}.desktop-nav{display:flex;align-items:center;gap:24px;flex:1;justify-content:center}.desktop-nav a{font-weight:700;color:#333;padding:8px 0;position:relative}.desktop-nav a.active,.desktop-nav a:hover{color:var(--primary)}.desktop-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:3px;background:var(--primary)}.top-action{padding:10px 22px}.hero{padding:58px 0 72px}.hero-grid{grid-template-columns:1.05fr .95fr}.category-grid{grid-template-columns:repeat(3,1fr)}.service-grid{grid-template-columns:repeat(3,1fr)}.feature-split{grid-template-columns:1fr 1fr}.security-section .security-grid{grid-template-columns:repeat(3,1fr)}.detail-grid{grid-template-columns:repeat(3,1fr)}.score-board{grid-template-columns:1.05fr .95fr}.app-box{padding:34px}.content-section{padding:62px 0}.page-hero{padding:72px 0}
}