*{box-sizing:border-box}
:root{--primary:rgb(213,5,5);--primary-dark:rgb(174,0,0);--text:#151515;--muted:#666;--light:#f6f6f6;--line:#ececec;--dark:#222;--white:#fff}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#fff;color:var(--text);line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.top-red-bar{display:none;background:var(--primary);color:#fff;font-size:13px}
.top-red-inner{height:34px;display:flex;align-items:center;justify-content:space-between}
.site-header{background:#fff;position:relative;z-index:20;border-bottom:1px solid var(--line)}
.mobile-header{height:62px;display:grid;grid-template-columns:70px 1fr 80px;align-items:center;padding:0 14px;background:#fff}
.mobile-logo{justify-self:center}
.mobile-logo img{height:34px;width:auto}
.menu-button{width:42px;height:42px;border:0;background:#fff;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:8px;cursor:pointer}
.menu-button span{height:2px;width:24px;background:#222;border-radius:3px;transition:.25s}
.menu-button.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-button.open span:nth-child(2){opacity:0}
.menu-button.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.top-action{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:999px;height:36px;padding:0 17px;font-weight:700;font-size:14px;box-shadow:0 6px 16px rgba(213,5,5,.18)}
.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;box-shadow:0 12px 22px rgba(0,0,0,.08)}
.mobile-nav.open{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mobile-nav a{padding:11px 12px;background:#f7f7f7;border-radius:12px;color:#333;font-weight:600;text-align:center}
.mobile-nav a.active{background:var(--primary);color:#fff}
.desktop-header{display:none}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border-radius:999px;padding:12px 26px;min-height:46px;font-weight:800;letter-spacing:.5px;box-shadow:0 10px 24px rgba(213,5,5,.18);transition:.22s}
.section{padding:44px 0}
.section-gray{background:var(--light)}
.section-title{margin:0 0 14px;font-size:28px;line-height:1.25;color:#111}
.section-subtitle{margin:0 auto 28px;color:#666;max-width:820px}
.center{text-align:center}
.hero-slider{position:relative;background:#fff;overflow:hidden}
.slider-viewport{position:relative;overflow:hidden}
.slider-track{display:flex;transition:transform .55s ease}
.slide{min-width:100%;position:relative;background:#f4f4f4}
.slide img{width:100%;height:auto;object-fit:contain}
.hero-copy{padding:18px 16px 24px;background:#fff;text-align:center}
.hero-copy h1{margin:0 0 10px;font-size:27px;line-height:1.24}
.hero-copy p{margin:0 auto 18px;color:#555;max-width:850px}
.slider-dots{position:absolute;left:0;right:0;bottom:10px;display:flex;justify-content:center;gap:8px;z-index:5}
.slider-dot{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.8);box-shadow:0 0 0 1px rgba(0,0,0,.08);cursor:pointer}
.slider-dot.active{background:var(--primary);width:24px;border-radius:999px}
.slider-arrow{display:none;position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.88);box-shadow:0 8px 24px rgba(0,0,0,.12);font-size:24px;cursor:pointer;z-index:6}
.slider-arrow.prev{left:22px}
.slider-arrow.next{right:22px}
.category-grid,.card-grid,.service-grid,.security-grid,.data-grid,.link-grid{display:grid;grid-template-columns:1fr;gap:18px}
.category-card,.sports-card,.focus-card,.service-card,.score-card,.data-card,.info-card,.security-card,.faq-item,.notice-box,.article-card,.step-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 10px 28px rgba(0,0,0,.045)}
.category-card{position:relative;overflow:hidden}
.category-card:before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--primary)}
.card-tag,.status-tag,.red-tag{display:inline-flex;align-items:center;background:rgba(213,5,5,.09);color:var(--primary);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:800;margin-bottom:10px}
.category-card h3,.focus-card h3,.service-card h3,.security-card h3,.article-card h3,.info-card h3,.step-card h3{margin:0 0 8px;font-size:20px}
.category-card p,.focus-card p,.service-card p,.security-card p,.article-card p,.info-card p,.step-card p{margin:0;color:#565656}
.text-link{display:inline-flex;margin-top:12px;color:var(--primary);font-weight:800}
.focus-match-section{background:linear-gradient(180deg,#fff,#fafafa)}
.focus-card{display:flex;flex-direction:column;gap:6px}
.status-tag{align-self:flex-start;background:#f2f2f2;color:#333}
.status-tag.live{background:rgba(213,5,5,.1);color:var(--primary)}
.split-section{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
.split-section .image-box img{border-radius:22px;box-shadow:0 18px 38px rgba(0,0,0,.12)}
.point-list{display:grid;gap:12px;margin:20px 0 0;padding:0;list-style:none}
.point-list li{position:relative;padding-left:20px;color:#444}
.point-list li:before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--primary)}
.score-panel,.data-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:0 10px 30px rgba(0,0,0,.05)}
.score-row{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.score-row:last-child{border-bottom:0}
.score-num{font-size:22px;font-weight:900;color:var(--primary)}
.team-left{text-align:left;font-weight:800}
.team-right{text-align:right;font-weight:800}
.data-card strong{display:block;color:#111;font-size:20px;margin-bottom:6px}
.app-showcase{background:#fafafa}
.platform-info-section .info-columns{display:grid;grid-template-columns:1fr;gap:18px}
.security-section{background:#fff}
.responsible-play-section{background:#f8f8f8}
.notice-box{border-left:5px solid var(--primary)}
.notice-box p{margin:0;color:#444}
.faq-list{display:grid;gap:14px;max-width:980px;margin:0 auto}
.faq-item h3{font-size:18px;margin:0 0 8px}
.faq-item p{margin:0;color:#555}
.cta-band{background:var(--primary);color:#fff;text-align:center;padding:42px 0}
.cta-band h2{margin:0 0 10px;font-size:28px}
.cta-band p{margin:0 auto 22px;max-width:780px;color:rgba(255,255,255,.92)}
.cta-band .main-btn{background:#fff;color:var(--primary);box-shadow:none}
.page-hero{background:#fafafa;padding:44px 0;border-bottom:1px solid var(--line)}
.page-hero .breadcrumb{color:var(--primary);font-weight:800;margin-bottom:8px}
.page-hero h1{font-size:34px;line-height:1.25;margin:0 0 14px}
.page-hero p{max-width:880px;margin:0;color:#555;font-size:17px}
.content-wrap{display:grid;grid-template-columns:1fr;gap:20px}
.content-block{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 10px 28px rgba(0,0,0,.04)}
.content-block h2{margin:0 0 12px;font-size:24px}
.content-block p{color:#555;margin:0 0 14px}
.content-block p:last-child{margin-bottom:0}
.feature-list{display:grid;grid-template-columns:1fr;gap:14px;margin-top:18px}
.feature-item{background:#f8f8f8;border:1px solid #efefef;border-radius:16px;padding:16px}
.feature-item h3{margin:0 0 8px;font-size:18px}
.feature-item p{margin:0;color:#555}
.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.related-links a{background:#f6f6f6;border:1px solid #e9e9e9;border-radius:999px;padding:8px 14px;color:#333;font-weight:700}
.related-links a:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.steps{counter-reset:step;display:grid;gap:14px}
.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;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900}
.site-footer{background:#1f1f1f;color:#fff;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding:38px 0}
.footer-logo{height:38px;width:auto;margin-bottom:14px}
.site-footer p{color:#cfcfcf;margin:0}
.site-footer h3{margin:0 0 12px;font-size:18px}
.site-footer a{display:block;color:#dedede;margin:7px 0}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:14px 0;color:#cfcfcf;font-size:13px;text-align:center}
@media (min-width:640px){
    .category-grid{grid-template-columns:repeat(2,1fr)}
    .card-grid,.service-grid,.security-grid,.data-grid,.feature-list{grid-template-columns:repeat(2,1fr)}
    .hero-copy h1{font-size:34px}
}
@media (min-width:980px){
    .mobile-header,.mobile-nav{display:none!important}
    .top-red-bar{display:block}
    .desktop-header{display:block;background:#fff}
    .desktop-nav-wrap{height:78px;display:flex;align-items:center;gap:20px}
    .desktop-logo img{height:46px;width:auto}
    .search-icon{width:34px;height:34px;border:2px solid #ddd;border-radius:50%;position:relative;flex:0 0 auto}
    .search-icon:after{content:"";position:absolute;width:10px;height:2px;background:#ddd;right:-6px;bottom:4px;transform:rotate(45deg);border-radius:2px}
    .desktop-nav{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
    .desktop-nav a{padding:9px 14px;border-radius:999px;color:#333;font-weight:700;font-size:15px;white-space:nowrap}
    .desktop-nav a.active,.desktop-nav a:hover{background:var(--primary);color:#fff}
    .desktop-action{flex:0 0 auto}
    .hero-slider{border-bottom:1px solid var(--line)}
    .slide img{height:470px;object-fit:cover}
    .hero-copy{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.94));padding:88px 20px 34px;z-index:4}
    .hero-copy h1{font-size:42px}
    .slider-arrow{display:block}
    .section{padding:68px 0}
    .category-grid{grid-template-columns:repeat(3,1fr)}
    .card-grid{grid-template-columns:repeat(4,1fr)}
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .data-grid{grid-template-columns:repeat(3,1fr)}
    .security-grid{grid-template-columns:repeat(3,1fr)}
    .split-section{grid-template-columns:1.05fr .95fr;gap:48px}
    .split-section.reverse{grid-template-columns:.95fr 1.05fr}
    .split-section.reverse .image-box{order:-1}
    .platform-info-section .info-columns{grid-template-columns:1fr 1fr}
    .content-wrap{grid-template-columns:1fr}
    .feature-list{grid-template-columns:repeat(3,1fr)}
    .footer-grid{grid-template-columns:1.5fr .8fr .8fr 1fr}
    .page-hero{padding:64px 0}
    .page-hero h1{font-size:44px}
}
@media (min-width:1180px){
    .desktop-nav a{padding:10px 17px}
}