:root{
    --brand: rgb(213, 5, 5);
    --brand-dark: rgb(180, 4, 4);
    --brand-soft: rgba(213, 5, 5, .08);
    --text: #151515;
    --muted: #666;
    --gray: #f5f6f8;
    --line: #e8e8e8;
    --white: #fff;
    --radius: 18px;
    --shadow: 0 12px 28px rgba(20, 20, 20, .08);
}
*{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{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1140px,calc(100% - 32px));margin:0 auto}
.section{padding:46px 0}
.section-light{background:var(--gray)}
.section-title{margin:0 0 12px;font-size:28px;line-height:1.25;color:#111}
.section-desc{margin:0 0 24px;color:var(--muted)}
.badge,.category-badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:13px;padding:5px 12px;margin-bottom:14px}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:999px;background:var(--brand);color:#fff;font-weight:700;box-shadow:0 8px 18px rgba(213,5,5,.22);transition:.2s ease}
.main-btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.text-link{display:inline-flex;color:var(--brand);font-weight:700;margin-top:10px}
.site-header{position:relative;z-index:10;background:#fff;border-bottom:1px solid var(--line)}
.desktop-topbar,.desktop-header{display:none}
.mobile-header{height:62px;background:#fff;display:grid;grid-template-columns:76px 1fr 88px;align-items:center;padding:0 14px;border-bottom:3px solid var(--brand-dark);position:sticky;top:0;z-index:20}
.menu-button{width:42px;height:42px;border:0;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:0;cursor:pointer}
.menu-button span{display:block;width:24px;height:2px;background:#111;border-radius:2px;transition:.2s ease;margin-left:4px}
.menu-button.open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-button.open span:nth-child(2){opacity:0}
.menu-button.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.mobile-logo{justify-self:center}.mobile-logo img{height:34px;width:auto}.logo img{height:44px;width:auto}
.top-action{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;min-height:36px;padding:0 16px;font-size:14px;font-weight:700;white-space:nowrap}
.mobile-nav{display:none;background:#fff;border-bottom:2px solid var(--brand-dark);padding:10px 16px 14px;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;box-shadow:0 12px 22px rgba(0,0,0,.08)}
.mobile-nav.open{display:grid}.mobile-nav a{padding:9px 12px;border-radius:12px;background:#f7f7f7;color:#333;font-weight:700}.mobile-nav a.active{background:var(--brand);color:#fff}
.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:9px;height:2px;background:#333;right:-7px;bottom:-4px;transform:rotate(45deg);border-radius:2px}
.hero{background:linear-gradient(180deg,#fff 0%,#f7f7f7 100%);padding:34px 0 28px;overflow:hidden}.hero-grid{display:grid;gap:26px;align-items:center}.hero h1{font-size:34px;line-height:1.18;margin:0 0 16px;letter-spacing:-.5px}.hero p{color:#484848;margin:0 0 18px}.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.hero-tags span{border:1px solid rgba(213,5,5,.18);background:#fff;color:#333;border-radius:999px;padding:5px 12px;font-size:13px;font-weight:700}.hero-media{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff}.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}.hero-panel{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(255,255,255,.92);border-radius:16px;padding:12px;display:flex;justify-content:space-between;gap:12px;box-shadow:0 10px 20px rgba(0,0,0,.08)}.hero-panel strong{display:block;color:var(--brand);font-size:18px}.hero-panel span{font-size:12px;color:#555}.official-entry{background:#fff;border-top:1px solid #f1f1f1;border-bottom:1px solid #f1f1f1}.entry-strip{display:grid;gap:10px;padding:14px 0}.entry-strip span{display:flex;align-items:center;gap:8px;font-weight:700;color:#333}.entry-strip span:before{content:"";width:8px;height:8px;background:var(--brand);border-radius:50%}
.category-nav{padding:42px 0}.category-main-grid,.category-sub-grid{display:grid;gap:14px}.category-main-card,.category-sub-card,.focus-card,.info-card,.data-card,.help-card,.faq-item,.simple-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 8px 22px rgba(0,0,0,.04)}.category-main-card{min-height:166px;position:relative;overflow:hidden}.category-main-card:after{content:"";position:absolute;right:-34px;bottom:-34px;width:110px;height:110px;border-radius:50%;background:var(--brand-soft)}.category-main-card h3,.category-sub-card h3,.focus-card h3,.info-card h3,.data-card h3,.help-card h3,.simple-card h3{margin:0 0 8px;font-size:20px}.category-main-card p,.category-sub-card p,.focus-card p,.info-card p,.data-card p,.help-card p,.simple-card p{margin:0;color:var(--muted)}.category-sub-grid{margin-top:14px}.category-sub-card{padding:16px}.card-label{display:inline-block;background:var(--brand);color:#fff;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;margin-bottom:10px}.focus-grid{display:grid;gap:14px}.info-split{display:grid;gap:18px}.info-column{background:#fff;border-radius:22px;border:1px solid var(--line);padding:22px;box-shadow:var(--shadow)}.info-list{display:grid;gap:12px}.info-row{padding:14px;border-radius:14px;background:#fafafa;border:1px solid #efefef}.info-row strong{display:block;margin-bottom:4px}.info-row span{color:var(--muted);font-size:14px}
.showcase,.app-showcase,.score-data{display:grid;gap:24px;align-items:center}.showcase-image,.app-image,.score-image{border-radius:24px;overflow:hidden;background:#fff;box-shadow:var(--shadow)}.showcase-image img,.app-image img,.score-image img{width:100%;aspect-ratio:16/11;object-fit:cover}.check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}.check-list li{position:relative;padding-left:24px;color:#424242}.check-list li:before{content:"";position:absolute;left:0;top:.7em;width:9px;height:9px;border-radius:50%;background:var(--brand)}.data-board{display:grid;gap:12px}.data-card strong{display:block;font-size:24px;color:var(--brand);line-height:1.1}.data-card span{color:#666;font-size:13px}.security-grid{display:grid;gap:14px}.help-card{position:relative}.help-card:before{content:"";display:block;width:34px;height:4px;border-radius:999px;background:var(--brand);margin-bottom:14px}.responsible-box{background:#fff;border:1px solid var(--line);border-left:6px solid var(--brand);border-radius:18px;padding:22px;box-shadow:0 8px 20px rgba(0,0,0,.04)}.responsible-box p{margin:0;color:#444}.faq-list{display:grid;gap:12px}.faq-item h3{margin:0 0 6px;font-size:18px}.faq-item p{margin:0;color:var(--muted)}.cta{background:linear-gradient(135deg,rgba(213,5,5,.08),#f8f8f8);border-top:1px solid #eee;border-bottom:1px solid #eee}.cta-box{text-align:center;padding:34px 0}.cta-box h2{margin:0 0 10px;font-size:28px}.cta-box p{margin:0 auto 20px;color:var(--muted);max-width:720px}.page-hero{background:linear-gradient(180deg,#fff,#f6f6f6);padding:42px 0;border-bottom:1px solid #eee}.page-hero h1{margin:0 0 12px;font-size:34px;line-height:1.25}.page-hero p{margin:0;max-width:780px;color:#555}.content-grid{display:grid;gap:18px}.two-col{display:grid;gap:18px}.step-list{counter-reset:step;list-style:none;padding:0;margin:0;display:grid;gap:12px}.step-list li{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 16px 16px 56px;position:relative}.step-list li:before{content:counter(step);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}.notice{background:#fff7f7;border:1px solid rgba(213,5,5,.18);border-left:6px solid var(--brand);border-radius:16px;padding:18px}.notice strong{color:var(--brand)}.site-footer{background:#181818;color:#f7f7f7;margin-top:0}.footer-grid{display:grid;gap:24px;padding:38px 0}.footer-logo{height:40px;width:auto;margin-bottom:12px}.site-footer p{color:#c9c9c9;margin:0}.site-footer h3{margin:0 0 12px;font-size:16px}.site-footer a{display:block;color:#d8d8d8;margin:7px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);color:#bdbdbd;font-size:13px;padding:14px 0}.article-body{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:0 8px 20px rgba(0,0,0,.04)}.article-body p{margin:0 0 14px;color:#444}.article-body p:last-child{margin-bottom:0}
@media (min-width:640px){.category-main-grid,.focus-grid,.security-grid,.content-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-sub-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.entry-strip{grid-template-columns:repeat(2,1fr)}.data-board{grid-template-columns:repeat(3,1fr)}}
@media (min-width:900px){.section{padding:64px 0}.mobile-header,.mobile-nav{display:none!important}.desktop-topbar{display:block;background:var(--brand-dark);color:#fff;font-size:13px}.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between}.desktop-header{display:block;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 20px rgba(0,0,0,.04)}.desktop-nav-wrap{height:76px;display:flex;align-items:center;gap:26px}.desktop-nav{display:flex;align-items:center;gap:4px;flex:1}.desktop-nav a{padding:10px 13px;border-radius:999px;font-weight:700;color:#333;font-size:15px;white-space:nowrap}.desktop-nav a.active,.desktop-nav a:hover{background:var(--brand-soft);color:var(--brand)}.desktop-actions{display:flex;align-items:center;gap:22px}.top-action{min-height:40px;padding:0 20px}.hero{padding:58px 0 44px}.hero-grid{grid-template-columns:1fr 1.08fr;gap:44px}.hero h1{font-size:48px}.entry-strip{grid-template-columns:repeat(4,1fr)}.category-main-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.category-sub-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.focus-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.info-split{grid-template-columns:1fr 1fr}.showcase,.app-showcase,.score-data{grid-template-columns:1fr 1fr;gap:42px}.score-data .score-image{order:2}.score-data .score-content{order:1}.security-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.content-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.two-col{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr}.page-hero{padding:58px 0}.page-hero h1{font-size:42px}}
@media (min-width:1180px){.desktop-nav a{padding:10px 15px}}