:root{
    --bg:#050505;
    --section:#0B0B0D;
    --card:#111111;
    --header:#0F0F10;
    --footer:#090909;
    --red:#D50505;
    --red-dark:#B90404;
    --red-hot:#FF2A2A;
    --white:#FFFFFF;
    --text:#D6D6D6;
    --muted:#A8A8A8;
    --border:rgba(255,255,255,0.08);
    --red-border:rgba(213,5,5,0.32);
    --shadow:0 18px 60px rgba(213,5,5,0.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(180deg,#151515 0%,#080808 100%);border-bottom:1px solid var(--red-border);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.mobile-head{height:64px;display:grid;grid-template-columns:64px 1fr 86px;align-items:center;padding:0 12px;background:linear-gradient(180deg,#151515 0%,#080808 100%)}
.menu-toggle{width:42px;height:42px;border:1px solid var(--border);border-radius:12px;background:#111;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.menu-toggle span{width:19px;height:2px;background:#fff;border-radius:2px}
.mobile-logo{justify-self:center}
.mobile-logo img,.brand img,.drawer-logo img{width:118px;height:auto}
.top-action{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:#fff;border-radius:999px;padding:9px 18px;font-weight:700;letter-spacing:.02em;box-shadow:0 8px 22px rgba(213,5,5,.28);white-space:nowrap}
.top-action:hover,.main-btn:hover{background:var(--red-dark);transform:translateY(-1px)}
.desktop-head{display:none}
.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);opacity:0;visibility:hidden;transition:.25s ease;z-index:80}
.mobile-drawer{position:fixed;top:0;left:0;width:84vw;max-width:320px;height:100vh;background:#0F0F10;border-right:1px solid var(--red-border);transform:translateX(-105%);transition:transform .28s ease;z-index:90;padding:18px;box-shadow:30px 0 60px rgba(0,0,0,.45);overflow-y:auto}
.drawer-open{overflow:hidden}
.drawer-open .drawer-overlay{opacity:1;visibility:visible}
.drawer-open .mobile-drawer{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:16px;margin-bottom:16px}
.drawer-close{border:0;background:rgba(213,5,5,.14);color:#fff;font-size:30px;line-height:1;width:40px;height:40px;border-radius:12px;cursor:pointer}
.drawer-nav{display:grid;gap:8px}
.drawer-nav a{padding:13px 12px;border-radius:14px;color:#fff;border:1px solid transparent;background:rgba(255,255,255,.03)}
.drawer-nav a.active,.drawer-nav a:hover{color:#fff;border-color:var(--red-border);background:rgba(213,5,5,.16)}
.drawer-note{margin-top:18px;padding:14px;border-radius:16px;background:#111;border:1px solid var(--border);color:var(--muted);font-size:14px}
section{position:relative}
.hero{background:linear-gradient(135deg,#050505 0%,#111111 55%,#1A0000 100%);padding:58px 0 46px;border-bottom:1px solid var(--border);overflow:hidden}
.hero:before{content:"";position:absolute;inset:auto -80px -120px auto;width:330px;height:330px;background:radial-gradient(circle,rgba(213,5,5,.32),transparent 65%);pointer-events:none}
.hero-grid,.split-grid,.app-grid,.showcase-grid{display:grid;gap:30px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#FF4A4A;background:rgba(213,5,5,.12);border:1px solid var(--red-border);border-radius:999px;padding:7px 13px;font-size:14px;font-weight:700;margin-bottom:16px}
h1,h2,h3{color:#fff;line-height:1.25;margin:0 0 14px}
h1{font-size:clamp(34px,8vw,62px);letter-spacing:-.04em}
h2{font-size:clamp(26px,5vw,42px);letter-spacing:-.03em}
h3{font-size:21px}
.red{color:var(--red-hot)}
p{margin:0 0 16px;color:var(--text)}
.lead{font-size:17px;color:#ececec;max-width:760px}
.section-intro{max-width:830px;margin-bottom:28px}
.section-intro p{color:var(--text)}
.section{padding:54px 0;background:var(--bg)}
.section-alt{padding:54px 0;background:var(--section);border-block:1px solid var(--border)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.tag{display:inline-flex;border:1px solid var(--red-border);background:rgba(213,5,5,.1);color:#fff;border-radius:999px;padding:7px 12px;font-size:14px}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);color:#fff;border-radius:999px;padding:13px 24px;font-weight:800;box-shadow:0 12px 30px rgba(213,5,5,.3);transition:.2s ease;border:0}
.ghost-link,.card-link{display:inline-flex;align-items:center;color:#fff;border:1px solid var(--red-border);border-radius:999px;padding:9px 15px;font-weight:700;background:rgba(255,255,255,.02)}
.card-link{margin-top:6px;color:#FF4A4A;background:transparent}
.ghost-link:hover,.card-link:hover{background:rgba(213,5,5,.13);border-color:rgba(213,5,5,.65)}
.hero-visual{position:relative;padding:12px;border:1px solid var(--red-border);border-radius:28px;background:linear-gradient(180deg,rgba(213,5,5,.10),rgba(255,255,255,.03));box-shadow:var(--shadow)}
.hero-visual img,.media-card img{border-radius:22px;border:1px solid var(--border);background:#111}
.float-card{position:relative;margin:-42px 16px 0;padding:15px;border-radius:18px;background:rgba(15,15,16,.92);border:1px solid var(--border);box-shadow:0 18px 40px rgba(0,0,0,.38)}
.float-card strong{display:block;color:#fff}.float-card span{color:var(--muted);font-size:14px}
.category-grid{display:grid;grid-template-columns:1fr;gap:16px}
.feature-card,.match-card,.data-card,.info-card,.faq-item,.notice-box,.step-card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:0 10px 30px rgba(0,0,0,.18);transition:.2s ease}
.feature-card:hover,.match-card:hover,.data-card:hover,.info-card:hover,.step-card:hover{border-color:var(--red-border);box-shadow:0 18px 42px rgba(213,5,5,.1);transform:translateY(-2px)}
.feature-card h3,.match-card h3,.data-card h3,.info-card h3,.step-card h3{color:#fff}
.feature-card p,.match-card p,.data-card p,.info-card p,.step-card p,.faq-item p{color:var(--text);font-size:15.5px}
.badge{display:inline-flex;color:#FF4A4A;background:rgba(213,5,5,.12);border:1px solid var(--red-border);border-radius:999px;padding:5px 10px;font-size:13px;font-weight:700;margin-bottom:12px}
.match-grid,.card-grid,.data-grid,.faq-grid,.security-grid,.step-grid{display:grid;grid-template-columns:1fr;gap:16px}
.media-card{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));border:1px solid var(--border);border-radius:28px;padding:12px;box-shadow:var(--shadow)}
.check-list{display:grid;gap:12px;margin:18px 0;padding:0;list-style:none}
.check-list li{padding:14px 15px;border:1px solid var(--border);border-radius:16px;background:rgba(255,255,255,.03);color:#e8e8e8}
.check-list strong{color:#fff;display:block;margin-bottom:4px}.check-list span{color:var(--muted);font-size:14px}
.score-panel{background:linear-gradient(180deg,#121212,#0B0B0D);border:1px solid var(--red-border);border-radius:26px;padding:22px;box-shadow:var(--shadow)}
.score-row{display:flex;align-items:center;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--border);gap:14px}.score-row:last-child{border-bottom:0}
.score-row strong{color:#fff}.score-row span{color:#FF4A4A;font-weight:800}.score-row small{color:var(--muted)}
.dual-panel{display:grid;gap:18px}
.panel-box{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:24px}
.panel-box h3{color:#FF4A4A}
.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.inline-links a{padding:9px 14px;border-radius:999px;background:rgba(255,255,255,.03);border:1px solid var(--border);color:#fff}.inline-links a:hover{border-color:var(--red-border);color:#FF4A4A}
.responsible{background:linear-gradient(135deg,#0B0B0D 0%,#111 60%,#1A0000 100%);border-block:1px solid var(--red-border)}
.notice-box{border-color:var(--red-border);background:linear-gradient(180deg,rgba(213,5,5,.08),rgba(17,17,17,.98))}
.notice-box h2,.notice-box h3{color:#FF4A4A}.notice-box p{color:#ededed}
.cta{padding:52px 0;background:radial-gradient(circle at 80% 20%,rgba(213,5,5,.28),transparent 34%),linear-gradient(135deg,#0B0B0D,#170000);border-top:1px solid var(--red-border);text-align:center}
.cta p{max-width:760px;margin:0 auto 22px;color:#ececec}
.page-hero{padding:52px 0;background:linear-gradient(135deg,#050505,#101010 58%,#190000);border-bottom:1px solid var(--border)}
.page-hero .lead{max-width:860px}
.breadcrumb{color:#A8A8A8;font-size:14px;margin-bottom:10px}.breadcrumb a{color:#fff}.breadcrumb a:hover{color:#FF4A4A}
.article-body{display:grid;gap:18px}
.article-body p{font-size:16px;color:#dcdcdc}
.kv-list{display:grid;gap:14px;margin-top:18px}.kv{display:grid;gap:4px;background:#111;border:1px solid var(--border);border-radius:18px;padding:16px}.kv strong{color:#fff}.kv span{color:var(--muted)}
.faq-item h3{color:#fff;font-size:18px}.faq-item{margin-bottom:14px}
.site-footer{background:var(--footer);border-top:1px solid var(--red-border);padding:42px 0 22px;color:var(--muted)}
.footer-grid{display:grid;gap:24px}.footer-brand img{width:130px;margin-bottom:14px}.footer-brand p{color:var(--muted)}
.footer-col{display:grid;gap:8px;align-content:start}.footer-col h3{font-size:17px;color:#fff;margin-bottom:6px}.footer-col a{color:var(--muted);font-size:15px}.footer-col a:hover{color:#FF4A4A}
.footer-bottom{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--border);margin-top:28px;padding-top:18px;font-size:14px;color:#9b9b9b}
@media (min-width:640px){
    .category-grid,.card-grid,.data-grid,.security-grid,.step-grid{grid-template-columns:repeat(2,1fr)}
    .match-grid,.faq-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
    .mobile-head{display:none}.desktop-head{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{width:136px}
    .desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.desktop-nav a{color:#e9e9e9;padding:10px 12px;border-radius:999px;font-size:15px;position:relative}.desktop-nav a.active,.desktop-nav a:hover{color:#fff;background:rgba(213,5,5,.13)}.desktop-nav a.active:after{content:"";position:absolute;left:18px;right:18px;bottom:4px;height:2px;background:var(--red);border-radius:3px}
    .hero{padding:86px 0 68px}.hero-grid,.split-grid,.app-grid,.showcase-grid{grid-template-columns:1.05fr .95fr;gap:46px}.split-grid.reverse{grid-template-columns:.95fr 1.05fr}.split-grid.reverse .media-card{order:-1}
    .category-grid{grid-template-columns:repeat(4,1fr)}.category-grid .large{grid-column:span 2;min-height:250px}.category-grid .small{min-height:220px}
    .match-grid{grid-template-columns:repeat(4,1fr)}.data-grid{grid-template-columns:repeat(3,1fr)}.security-grid{grid-template-columns:repeat(3,1fr)}.step-grid{grid-template-columns:repeat(4,1fr)}.card-grid{grid-template-columns:repeat(3,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}
    .dual-panel{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}.footer-bottom{flex-direction:row;justify-content:space-between}.section,.section-alt{padding:74px 0}.page-hero{padding:72px 0}
}
@media (min-width:1100px){.desktop-nav a{padding:10px 16px}.lead{font-size:18px}}