:root{
  --bg:#0D0D0D;--deep:#070707;--card:#171717;--sub:#222222;--title:#F2F2F2;--text:#C8C8C8;--muted:#9A9A9A;--soft:#6E6E6E;--silver:#C8C8C8;--bright:#E8E8E8;--ink:#1A1A1A;--mist-red:#B85A5A;--border:rgba(232,232,232,.12);--border-strong:rgba(232,232,232,.36);--shadow:0 12px 28px rgba(0,0,0,.45);--max:1120px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--bright);color:var(--bg);padding:10px 14px;border-radius:8px}.skip-link:focus{top:8px}.site-header{position:fixed;left:0;right:0;top:0;z-index:100}.ink-line{height:22px;background:var(--deep);border-bottom:1px solid var(--border);font-size:12px;color:var(--silver)}.ink-line-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:var(--silver);padding:0 4px;height:22px}.material-bar{height:60px;background:var(--ink);border-bottom:1px solid var(--border)}.material-bar-inner{height:60px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand-link{justify-self:start;display:inline-flex;min-height:44px;align-items:center}.brand-logo,.footer-logo{height:28px;width:auto;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:700;color:var(--bright);letter-spacing:.08em}.drawer-button,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-strong);border-radius:10px;background:var(--deep);color:var(--bright);font-size:14px;padding:0 18px}.drawer-button{justify-self:center}.app-link{justify-self:end}.case-tabs{height:40px;background:var(--deep);border-bottom:1px solid var(--border)}.case-tabs-inner{height:40px;display:flex;align-items:stretch;justify-content:center;gap:8px}.case-tabs a{font-size:13px;min-width:96px;display:flex;align-items:center;justify-content:center;padding:0 18px}.case-tabs a.is-current{background:var(--silver);color:var(--bg)}.site-main{padding-top:122px;min-height:65vh}.page-hero{padding:46px 0 26px}.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}.page-hero h1,.home-title{font-size:24px;line-height:1.3;color:var(--title);margin:0 0 14px}.lead{max-width:820px;color:var(--silver);margin:0;font-size:15px}.content-section{padding:26px 0}.content-section+.content-section{border-top:1px solid var(--border)}.content-section h2{font-size:20px;color:var(--title);margin:0 0 14px}.content-section h3{font-size:16px;color:var(--bright);margin:20px 0 8px}.content-section p{margin:0 0 14px}.content-section ul{margin:10px 0 0;padding-left:20px}.content-section li{margin:8px 0}.soft-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:var(--shadow)}.grid-2,.grid-3,.grid-4{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.number-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}.number-card .num{font-size:26px;color:var(--bright);font-weight:700;line-height:1;margin-bottom:10px}.number-card h3{margin:0 0 8px}.image-slot{width:100%;background:var(--ink);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.feature-slot{height:180px}.section-slot{height:200px}.app-slot{height:360px;max-width:520px}.cover-copy{padding:24px 0 10px}.brand-kicker{font-size:13px;color:var(--muted);letter-spacing:.14em}.home-intro{max-width:820px}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.app-icon-row{margin-top:0}.app-icon{width:48px;height:48px;object-fit:contain;object-position:center}.btn-primary,.btn-secondary{height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D}.btn-secondary{background:var(--deep);border:1px solid var(--border-strong);color:var(--bright)}.feature-card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden}.feature-card .copy{padding:18px}.feature-card h2,.feature-card h3{margin-top:0}.rack-list{display:grid;gap:10px}.rack-item{display:grid;grid-template-columns:72px 1fr auto;gap:16px;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px}.rack-code{font-weight:700;color:var(--bright);letter-spacing:.08em}.rack-item span:last-child{color:var(--muted);font-size:13px}.timeline{position:relative;margin-left:9px;padding-left:28px}.timeline:before{content:"";position:absolute;left:4px;top:8px;bottom:8px;width:1px;background:var(--border-strong)}.timeline-item{position:relative;padding:0 0 24px}.timeline-item:before{content:"";position:absolute;left:-29px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--silver);box-shadow:0 0 0 4px var(--bg)}.timeline-item strong{color:var(--bright)}.status{display:inline-flex;margin-left:8px;border:1px solid var(--border-strong);border-radius:999px;padding:1px 8px;font-size:12px;color:var(--silver)}.memo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.memo{background:var(--card);border-left:3px solid var(--mist-red);border-radius:10px;padding:16px}.big-list{counter-reset:item;display:grid;gap:14px}.big-list article{position:relative;padding:20px 20px 20px 78px;background:var(--card);border:1px solid var(--border);border-radius:12px}.big-list article:before{counter-increment:item;content:counter(item,decimal-leading-zero);position:absolute;left:20px;top:20px;font-size:28px;line-height:1;color:var(--bright);font-weight:700}.legal-list{display:grid;gap:14px}.legal-list section{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.faq-list{display:grid;gap:12px}.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px}.faq-item h2,.faq-item h3{margin:0 0 8px}.site-footer{background:var(--deep);border-top:1px solid var(--border);margin-top:44px;padding:30px 0 calc(24px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:20px}.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.footer-grid h2{font-size:13px;color:var(--bright);margin:0 0 8px}.footer-grid a{display:block;font-size:13px;color:var(--silver);padding:3px 0}.footer-note{border-top:1px solid var(--border);margin-top:22px;padding-top:18px;font-size:13px;color:var(--muted)}.footer-note p{margin:4px 0}.page-overlay{position:fixed;inset:0;z-index:180;background:rgba(0,0,0,.66);visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.material-drawer{position:fixed;z-index:200;left:0;top:0;bottom:0;width:400px;max-width:86vw;background:var(--deep);border-right:1px solid var(--border-strong);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s;overflow-y:auto;padding:18px}.drawer-open{overflow:hidden}.drawer-open .page-overlay,.search-open .page-overlay{visibility:visible;opacity:1;pointer-events:auto}.drawer-open .material-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--bright)}.icon-button{min-height:44px;border:1px solid var(--border-strong);border-radius:10px;background:var(--ink);color:var(--bright);padding:0 14px}.drawer-groups section{padding:18px 0;border-bottom:1px solid var(--border)}.drawer-groups h2{font-size:13px;color:var(--muted);margin:0 0 8px}.drawer-groups a{display:block;border-radius:10px;padding:10px}.drawer-groups a:hover{background:var(--card)}.drawer-groups strong{display:block;color:var(--bright);font-size:15px}.drawer-groups span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.search-panel{position:fixed;z-index:210;left:0;right:0;top:82px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-open{overflow:hidden}.search-open .search-panel{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:var(--ink);border:1px solid var(--border-strong);border-radius:0 0 14px 14px;padding:20px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.search-card label{display:block;color:var(--muted);margin-bottom:8px}.search-card input{width:100%;height:44px;border-radius:10px;border:1px solid var(--border-strong);background:var(--deep);color:var(--bright);padding:0 12px;outline:none}.search-card input:focus{border-color:var(--bright)}.search-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-links a{min-height:40px;display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:10px;padding:0 14px;background:var(--card)}.mobile-bottom{display:none}.notice{border:1px solid var(--border-strong);border-left:3px solid var(--mist-red);border-radius:10px;padding:14px 16px;background:var(--card)}.table-like{display:grid;gap:8px}.table-row{display:grid;grid-template-columns:140px 1fr;gap:14px;border-bottom:1px solid var(--border);padding:12px 0}.table-row strong{color:var(--bright)}a:hover,.drawer-button:hover,.icon-button:hover,.text-button:hover{filter:brightness(1.12)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--bright);outline-offset:3px}
@media (max-width:760px){
  .shell{width:calc(100% - 32px)}.case-tabs{display:none}.site-main{padding-top:82px;padding-bottom:58px}.material-bar-inner{grid-template-columns:1fr auto 1fr;gap:6px}.brand-link{min-width:0}.brand-logo{max-width:104px;height:28px}.drawer-button,.app-link{padding:0 10px;min-width:64px}.grid-2,.grid-3,.grid-4,.memo-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.search-panel{top:0;bottom:0;background:var(--deep);padding:16px;display:flex;align-items:flex-start}.search-card{width:100%;margin:0;background:var(--deep);border:0;border-radius:0;padding:0;box-shadow:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:120;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:var(--deep);border-top:1px solid var(--border-strong)}.mobile-bottom a{font-size:12px;display:flex;align-items:center;justify-content:center}.mobile-bottom a.is-current{background:var(--silver);color:var(--bg)}.drawer-open .mobile-bottom,.search-open .mobile-bottom{z-index:100}.banner-slot{height:220px}.feature-slot{height:170px}.section-slot{height:190px}.app-slot{height:320px}.rack-item{grid-template-columns:58px 1fr}.rack-item span:last-child{grid-column:2}.table-row{grid-template-columns:1fr}.big-list article{padding-left:66px}.big-list article:before{left:16px}.page-hero{padding-top:34px}.content-section{padding:22px 0}
}
@media (max-width:420px){.footer-grid{grid-template-columns:1fr}.search-links a{flex:1 1 40%}.ink-line-inner span{max-width:240px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}