:root{
  --bg:#080808;--top:#050505;--panel:#121212;--card:#191919;--hover:#222;
  --red:#D71920;--red2:#F0343B;--deep:#8F1017;--white:#fff;--text:#F5F5F5;
  --muted:#D9D9D9;--soft:#BDBDBD;--line:rgba(255,255,255,.13);
  --rline:rgba(215,25,32,.55);--shadow:0 14px 38px rgba(0,0,0,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.75;overflow-x:hidden}
body.panel-open{overflow:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:#fff}
button,input{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%;height:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:#fff;color:#000;padding:10px 14px;border-radius:6px}
.skip-link:focus{top:12px}
.site-header{position:fixed;inset:0 0 auto;z-index:900;background:var(--top)}
.header-wrap,.footer-wrap,.container{width:min(1220px,calc(100% - 32px));margin:0 auto}
.fireline{height:16px;background:var(--red);font-size:11px;line-height:16px}
.fireline-inner{display:flex;justify-content:space-between;align-items:center;height:16px}
.fireline-brand{font-weight:800}
.header-action{min-width:44px;height:16px;border:0;background:transparent;color:#fff;padding:0 4px;font-size:11px}
.baotai{height:50px;background:#050505;border-bottom:1px solid var(--rline)}
.baotai-inner{height:50px;display:flex;align-items:center;justify-content:space-between}
.brand-lockup img{max-height:28px;width:auto}
.brand-text{font-weight:900;letter-spacing:.5px;color:#fff;font-size:19px}
.brand-text small{font-size:11px;color:var(--muted);margin-left:8px}
.baotai-actions{display:flex;align-items:center;gap:8px}
.verify-link,.drawer-trigger{min-height:44px;padding:0 14px;border:1px solid var(--rline);background:#090909;color:#fff;border-radius:7px;display:inline-flex;align-items:center;justify-content:center}
.verify-link:hover,.drawer-trigger:hover,.verify-link.is-active{background:var(--red)}
.tagbar{height:42px;background:#0d0d0d;border-bottom:1px solid var(--line)}
.tagbar-inner{display:flex;align-items:stretch;height:42px;gap:2px}
.tagbar a{position:relative;min-height:42px;padding:0 18px 0 26px;display:flex;align-items:center;color:#fff}
.tagbar a::before{content:"";position:absolute;left:13px;width:3px;height:16px;background:var(--red)}
.tagbar a:hover,.tagbar a.is-active{background:var(--red)}
.site-main{padding-top:108px}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:920;opacity:0;pointer-events:none;transition:.18s}
.overlay.is-open{opacity:1;pointer-events:auto}
.drawer-panel,.search-panel{position:fixed;z-index:930;background:#0c0c0c;border:1px solid var(--rline);box-shadow:var(--shadow);transition:.2s ease;overflow-y:auto}
.drawer-panel{top:66px;right:calc((100% - min(1220px,calc(100% - 32px)))/2);width:min(340px,calc(100% - 32px));max-height:calc(100vh - 82px);transform:translateY(-12px);opacity:0;pointer-events:none}
.search-panel{top:66px;right:calc((100% - min(1220px,calc(100% - 32px)))/2);width:min(400px,calc(100% - 32px));padding-bottom:14px;transform:translateY(-12px);opacity:0;pointer-events:none}
.drawer-panel.is-open,.search-panel.is-open{transform:none;opacity:1;pointer-events:auto}
.panel-head{display:flex;justify-content:space-between;align-items:center;padding:14px;border-bottom:1px solid var(--line)}
.panel-head strong{font-size:18px}
.panel-close{min-width:56px;min-height:44px;border:1px solid var(--rline);background:#111;color:#fff;border-radius:6px}
.drawer-groups{padding:12px}
.drawer-groups section+section{border-top:1px solid var(--line);margin-top:12px;padding-top:12px}
.drawer-groups h2{margin:0 0 8px;color:#fff;font-size:15px}
.drawer-groups a,.search-results a{display:block;padding:10px;border-radius:6px}
.drawer-groups a:hover,.search-results a:hover{background:var(--hover)}
.drawer-groups b,.search-results b{display:block;color:#fff}
.drawer-groups span,.search-results span{display:block;color:var(--soft);font-size:13px}
.search-label{display:block;padding:14px 14px 6px;color:var(--muted)}
.search-panel input{display:block;width:calc(100% - 28px);margin:0 14px 10px;min-height:46px;background:#141414;border:1px solid var(--line);color:#fff;border-radius:6px;padding:0 12px}
.search-panel input:focus{outline:2px solid var(--red2);outline-offset:2px}
.search-results{padding:0 8px}
.no-result{padding:8px 14px;color:var(--muted)}
.preset-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:12px 14px 0}
.preset-links a{min-height:44px;display:flex;align-items:center;justify-content:center;border:1px solid var(--rline);border-radius:6px;background:#111}
.mobile-nav{display:none}
.section{padding:52px 0;border-bottom:1px solid var(--line)}
.section.compact{padding:28px 0}
.eyebrow{display:inline-block;color:#fff;background:var(--deep);border-left:4px solid var(--red2);padding:3px 9px;border-radius:4px;font-size:13px}
h1,h2,h3{color:#fff;line-height:1.3}
h1{font-size:clamp(28px,3vw,32px);margin:10px 0 18px}
h2{font-size:24px;margin:0 0 16px}
h3{font-size:18px;margin:0 0 10px}
p{margin:0 0 14px}
.lead{font-size:17px;color:#fff;max-width:860px}
.muted{color:var(--muted)}
.soft{color:var(--soft)}
.hero{padding:34px 0 48px;border-bottom:1px solid var(--line)}
.flash-strip{display:flex;align-items:center;gap:12px;background:#101010;border-left:5px solid var(--red);padding:10px 14px;margin-bottom:22px;border-radius:0 6px 6px 0}
.hero-grid{display:grid;grid-template-columns:42fr 58fr;gap:26px;align-items:stretch}
.hero-copy{background:var(--panel);padding:28px;border:1px solid var(--line);border-radius:8px}
.hero-copy h1{max-width:590px}
.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.btn{min-height:44px;padding:0 16px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;font-weight:800}
.btn-primary{background:var(--red);color:#fff}
.btn-secondary{background:#070707;border:1px solid var(--red);color:#fff}
.hero-media{min-height:210px;max-height:240px;background:linear-gradient(145deg,#0b0b0b,#171717);border:1px solid var(--rline);border-radius:8px;display:flex;align-items:center;justify-content:center;padding:14px;overflow:hidden}
.hero-media img{max-height:212px;width:100%;object-fit:contain;object-position:center}
.brand-fallback{width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:26px;background:linear-gradient(120deg,#080808,#151515 60%,#2a090b)}
.brand-fallback strong{font-size:34px}
.brand-fallback span{color:#fff;opacity:.78;letter-spacing:2px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:20px;transition:.18s}
.card:hover{background:var(--hover);border-color:var(--rline)}
.card .content-image{max-height:170px;margin:0 auto 14px;object-fit:contain;object-position:center}
.card a.more{display:inline-flex;min-height:44px;align-items:center;color:#fff;font-weight:800;border-bottom:2px solid var(--red)}
.ordered-news{counter-reset:item;display:grid;gap:10px}
.ordered-news article{counter-increment:item;background:#111;border-left:3px solid var(--red);padding:16px 18px;border-radius:4px}
.ordered-news article::before{content:counter(item,decimal-leading-zero);color:var(--red2);font-weight:900;margin-right:10px}
.notice{background:#100b0b;border:1px solid var(--rline);padding:18px;border-radius:8px}
.split-source{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.source-layer{background:#161616;border-top:3px solid var(--red);padding:17px;border-radius:6px}
.timeline{position:relative;margin-left:8px;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--red)}
.timeline article{position:relative;background:#151515;border:1px solid var(--line);padding:16px 18px;border-radius:7px;margin-bottom:12px}
.timeline article::before{content:"";position:absolute;left:-29px;top:22px;width:12px;height:12px;border-radius:50%;background:var(--red2);box-shadow:0 0 0 4px #080808}
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.method-grid article{background:#141414;border:1px solid var(--line);padding:18px;border-radius:7px}
.red-frame{border:1px solid var(--rline);background:#0d0d0d;padding:22px;border-radius:8px}
.app-panel{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:28px;align-items:center}
.app-image{max-height:420px;margin:auto;object-fit:contain;object-position:center}
.page-hero{padding:44px 0 28px;border-bottom:1px solid var(--line)}
.page-content{padding:34px 0 56px}
.prose{max-width:900px}
.prose p{color:var(--text)}
.prose h2{margin-top:30px}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin-bottom:10px}
.info-box{background:#141414;border-left:4px solid var(--red);padding:18px;margin:22px 0;border-radius:0 8px 8px 0}
.topic-index{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.topic-index a{min-height:62px;display:flex;align-items:center;background:#151515;border:1px solid var(--line);padding:12px;border-radius:7px}
.topic-index a:hover{border-color:var(--rline);background:#202020}
.faq-list{display:grid;gap:14px}
.faq-item{background:#151515;border:1px solid var(--line);padding:18px;border-radius:8px}
.faq-item h2{font-size:18px;margin:0 0 10px}
.site-footer{background:#050505;border-top:2px solid var(--red);padding:38px 0 78px}
.footer-brand{max-width:720px}
.footer-brand strong{font-size:24px}
.footer-brand span{display:block;color:var(--soft);font-size:12px;letter-spacing:1.5px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:26px 0}
.footer-grid h2{font-size:15px;margin-bottom:8px}
.footer-grid a{display:block;min-height:36px;color:var(--muted)}
.footer-grid a:hover{color:#fff}
.footer-note{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;color:var(--muted)}
.copyright{margin-top:16px;color:var(--soft)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--red2);outline-offset:3px}
@media(max-width:900px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.method-grid{grid-template-columns:1fr 1fr}
  .hero-grid,.app-panel{grid-template-columns:1fr}
  .hero-media{max-height:240px}
  .split-source{grid-template-columns:1fr}
}
@media(max-width:720px){
  .header-wrap,.footer-wrap,.container{width:calc(100% - 32px)}
  .tagbar{display:none}
  .site-main{padding-top:66px}
  .drawer-panel,.search-panel{top:66px;right:16px;left:16px;width:auto;max-height:calc(100vh - 86px)}
  .brand-text small{display:none}
  .verify-link{padding:0 10px}
  .section{padding:38px 0}
  .hero{padding-top:24px}
  .hero-copy{padding:21px}
  .grid-4,.grid-3,.grid-2,.method-grid,.topic-index{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .site-footer{padding-bottom:90px}
  .mobile-nav{position:fixed;z-index:850;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#050505;border-top:1px solid var(--rline)}
  .mobile-nav a{min-height:50px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px}
  .mobile-nav a.is-active{background:var(--red)}
}
@media(max-width:430px){
  .fireline-brand{font-size:10px}
  .brand-text{font-size:17px}
  .baotai-actions{gap:5px}
  .verify-link,.drawer-trigger{min-width:54px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
}