/* B体育响应式站点样式 */
:root{
    --brand: rgb(213, 5, 5);
    --brand-dark: rgb(178, 0, 0);
    --text: #171717;
    --muted: #5f6368;
    --light: #f6f6f6;
    --line: #e7e7e7;
    --card: #ffffff;
    --black: #000000;
    --radius: 18px;
    --shadow: 0 12px 30px 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","Microsoft YaHei",Arial,sans-serif;
    background:#fff;
    color:var(--text);
    line-height:1.72;
    overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 14px}
.wrap{width:min(1180px, calc(100% - 32px));margin:0 auto}
.site-header{
    position:sticky;
    top:0;
    z-index:20;
    background:#fff;
    border-bottom:1px solid var(--line);
}
.mobile-top{
    height:60px;
    display:grid;
    grid-template-columns:52px 1fr 88px;
    align-items:center;
    padding:0 14px;
    background:#fff;
}
.menu-toggle{
    width:42px;
    height:42px;
    border:0;
    background:#fff;
    border-radius:12px;
    padding:9px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    gap:5px;
    cursor:pointer;
}
.menu-toggle span{
    display:block;
    width:23px;
    height:2px;
    background:#202124;
    border-radius:8px;
}
.mobile-logo{justify-self:center}
.mobile-logo img{height:34px;max-width:128px;object-fit:contain}
.top-action{
    justify-self:end;
    background:var(--brand);
    color:#fff;
    border-radius:999px;
    padding:8px 18px;
    font-weight:700;
    font-size:14px;
    box-shadow:0 8px 18px rgba(213,5,5,.18);
    transition:.2s ease;
    white-space:nowrap;
}
.top-action:hover,.main-btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.desktop-top{display:none}
.mobile-nav{
    display:none;
    grid-template-columns:1fr 1fr;
    gap:8px;
    padding:12px 16px 16px;
    background:#fff;
    border-top:1px solid var(--line);
}
.mobile-nav.is-open{display:grid}
.mobile-nav a{
    padding:10px 12px;
    border:1px solid var(--line);
    border-radius:12px;
    color:#333;
    font-weight:650;
    background:#fafafa;
}
.mobile-nav a.active{color:var(--brand);border-color:rgba(213,5,5,.22);background:#fff4f4}
.main-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:46px;
    padding:12px 24px;
    border-radius:999px;
    background:var(--brand);
    color:#fff;
    font-weight:800;
    box-shadow:0 10px 24px rgba(213,5,5,.22);
    transition:.2s ease;
}
.more-link{
    display:inline-flex;
    color:var(--brand);
    font-weight:800;
    margin-top:10px;
}
.section{padding:54px 0}
.section.light{background:var(--light)}
.section-head{margin-bottom:24px}
.section-kicker,.badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    background:#fff4f4;
    color:var(--brand);
    border:1px solid rgba(213,5,5,.16);
    padding:5px 12px;
    border-radius:999px;
    font-size:13px;
    font-weight:800;
}
.section-title{
    margin:10px 0 8px;
    font-size:28px;
    line-height:1.25;
}
.section-desc,.page-summary{
    color:var(--muted);
    max-width:820px;
}
.hero{
    position:relative;
    background:#fff;
    overflow:hidden;
}
.hero:before{
    content:"";
    position:absolute;
    inset:auto -80px -120px auto;
    width:260px;
    height:260px;
    background:rgba(213,5,5,.09);
    border-radius:50%;
}
.hero-grid{
    display:grid;
    gap:26px;
    align-items:center;
    padding:42px 0;
}
.hero-content h1{
    margin:12px 0 14px;
    font-size:34px;
    line-height:1.16;
    letter-spacing:-.5px;
}
.hero-content p{color:#444;font-size:16px}
.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:22px}
.hero-note{color:var(--muted);font-size:13px}
.hero-media{
    border-radius:26px;
    overflow:hidden;
    box-shadow:var(--shadow);
    border:1px solid var(--line);
    background:#fff;
}
.hero-media img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
}
.stat-strip{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    margin-top:18px;
}
.stat-item{
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    padding:14px;
    box-shadow:0 8px 18px rgba(0,0,0,.04);
}
.stat-item strong{font-size:22px;color:var(--brand);display:block}
.stat-item span{font-size:13px;color:var(--muted)}
.category-grid,.service-grid,.card-grid{
    display:grid;
    gap:16px;
}
.category-grid{grid-template-columns:1fr}
.sports-card,.service-card,.info-card,.faq-item,.score-card,.data-panel,.step-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px;
    box-shadow:0 8px 22px rgba(0,0,0,.045);
}
.sports-card h3,.service-card h3,.info-card h3,.score-card h3,.step-card h3{margin:0 0 8px;font-size:20px}
.sports-card p,.service-card p,.info-card p,.score-card p,.step-card p{color:var(--muted)}
.tag{
    display:inline-flex;
    background:#fff4f4;
    color:var(--brand);
    border-radius:999px;
    padding:4px 10px;
    font-size:12px;
    font-weight:800;
    margin-bottom:10px;
}
.image-text{
    display:grid;
    gap:24px;
    align-items:center;
}
.image-box{
    border-radius:24px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    background:#fff;
}
.image-box img{
    width:100%;
    aspect-ratio:16/11;
    object-fit:cover;
}
.score-panel{
    display:grid;
    gap:14px;
}
.score-card{
    display:grid;
    gap:8px;
}
.score-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    border-top:1px solid var(--line);
    padding-top:10px;
    font-weight:800;
}
.status{
    display:inline-flex;
    border-radius:999px;
    padding:4px 10px;
    font-size:12px;
    background:#f2f2f2;
    color:#333;
    font-weight:800;
}
.status.live{background:#fff2f2;color:var(--brand)}
.data-list{list-style:none;padding:0;margin:12px 0 0}
.data-list li{
    display:flex;
    justify-content:space-between;
    gap:12px;
    padding:10px 0;
    border-top:1px solid var(--line);
    color:#333;
}
.data-list span{color:var(--muted)}
.app-showcase{
    display:grid;
    gap:24px;
    align-items:center;
}
.app-points{
    display:grid;
    gap:12px;
    margin:18px 0;
}
.app-points div{
    padding:12px 14px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
}
.security-list,.check-list{
    display:grid;
    gap:12px;
    padding:0;
    margin:18px 0 0;
    list-style:none;
}
.security-list li,.check-list li{
    position:relative;
    padding:12px 14px 12px 38px;
    border:1px solid var(--line);
    border-radius:14px;
    background:#fff;
}
.security-list li:before,.check-list li:before{
    content:"";
    position:absolute;
    left:15px;
    top:20px;
    width:8px;
    height:8px;
    border-radius:50%;
    background:var(--brand);
}
.responsible-box{
    border:1px solid rgba(213,5,5,.18);
    background:#fff7f7;
    border-radius:24px;
    padding:24px;
}
.faq-list{display:grid;gap:14px}
.faq-item h3{margin:0 0 8px;font-size:18px}
.faq-item p{color:var(--muted);margin:0}
.cta{
    background:linear-gradient(180deg,#fff5f5,#fff);
    border-top:1px solid rgba(213,5,5,.12);
    border-bottom:1px solid rgba(213,5,5,.12);
    text-align:center;
}
.cta h2{font-size:28px;margin:0 0 10px}
.cta p{color:var(--muted);max-width:760px;margin:0 auto 22px}
.page-hero{
    padding:42px 0 26px;
    background:linear-gradient(180deg,#fff5f5,#fff);
    border-bottom:1px solid var(--line);
}
.page-hero h1{font-size:32px;line-height:1.2;margin:12px 0 12px}
.content-block{
    padding:36px 0 58px;
}
.content-grid{
    display:grid;
    gap:18px;
}
.notice-box{
    border-left:4px solid var(--brand);
    background:#fff7f7;
    border-radius:16px;
    padding:18px;
    color:#4a4a4a;
}
.steps{
    counter-reset:step;
    display:grid;
    gap:16px;
}
.step-card{position:relative;padding-left:58px}
.step-card:before{
    counter-increment:step;
    content:counter(step);
    position:absolute;
    left:18px;
    top:20px;
    width:28px;
    height:28px;
    background:var(--brand);
    color:#fff;
    display:grid;
    place-items:center;
    border-radius:50%;
    font-weight:900;
}
.site-footer{
    background:#161616;
    color:#dcdcdc;
}
.footer-grid{
    display:grid;
    gap:26px;
    padding:42px 0;
}
.footer-logo img{height:40px;width:auto;margin-bottom:12px}
.site-footer h3{color:#fff;margin:0 0 12px}
.site-footer a{
    display:block;
    color:#dcdcdc;
    margin:7px 0;
}
.site-footer a:hover{color:#fff}
.footer-note{color:#aaa;font-size:13px}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.1);
    color:#aaa;
    font-size:13px;
    padding:14px 0;
}
@media (min-width: 640px){
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .service-grid,.card-grid{grid-template-columns:repeat(2,1fr)}
    .score-panel{grid-template-columns:repeat(2,1fr)}
    .stat-strip{grid-template-columns:repeat(4,1fr)}
}
@media (min-width: 960px){
    .mobile-top,.mobile-nav{display:none !important}
    .desktop-top{
        height:78px;
        display:flex;
        align-items:center;
        gap:24px;
    }
    .desktop-logo img{height:46px;max-width:160px;object-fit:contain}
    .desktop-nav{
        flex:1;
        display:flex;
        align-items:center;
        justify-content:center;
        gap:18px;
        white-space:nowrap;
    }
    .desktop-nav a{
        color:#333;
        font-weight:750;
        font-size:15px;
        padding:27px 0;
        border-bottom:3px solid transparent;
    }
    .desktop-nav a.active,.desktop-nav a:hover{
        color:var(--brand);
        border-bottom-color:var(--brand);
    }
    .desktop-action{margin-left:0}
    .search-icon{
        width:21px;
        height:21px;
        border:2px solid #333;
        border-radius:50%;
        display:inline-block;
        position:relative;
        flex:0 0 auto;
    }
    .search-icon:after{
        content:"";
        position:absolute;
        width:9px;
        height:2px;
        background:#333;
        transform:rotate(45deg);
        right:-7px;
        bottom:-3px;
        border-radius:3px;
    }
    .hero-grid{grid-template-columns:1.02fr .98fr;padding:64px 0}
    .hero-content 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)}
    .card-grid{grid-template-columns:repeat(3,1fr)}
    .image-text{grid-template-columns:1fr 1fr}
    .image-text.reverse .image-box{order:2}
    .app-showcase{grid-template-columns:.9fr 1.1fr}
    .security-list{grid-template-columns:repeat(3,1fr)}
    .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}
    .page-hero{padding:58px 0 36px}
    .page-hero h1{font-size:46px}
    .content-grid{grid-template-columns:1.2fr .8fr}
}