:root{--bg:#0D0D0D;--bg-deep:#070707;--panel:#171717;--panel-2:#222222;--title:#F2F2F2;--text:#C8C8C8;--muted:#9A9A9A;--soft:#6E6E6E;--silver:#C8C8C8;--silver-hi:#E8E8E8;--ink:#1A1A1A;--red:#B85A5A;--line:rgba(232,232,232,.12);--line-strong:rgba(232,232,232,.36);--shadow:0 12px 28px rgba(0,0,0,.45);--radius:12px;--max:1120px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}.site-header{position:fixed;z-index:50;top:0;left:0;right:0}.ink-line{height:22px;background:#050505;color:var(--silver);border-bottom:1px solid rgba(255,255,255,.06);font-size:12px}.ink-line-inner,.material-bar-inner,.case-tabs-inner{height:100%;display:flex;align-items:center}.ink-line-inner{justify-content:space-between}.text-control,.drawer-trigger,.panel-close{border:0;background:transparent;color:var(--silver-hi);cursor:pointer;min-height:44px;padding:0 14px}.material-bar{height:60px;background:var(--ink);border-bottom:1px solid var(--line)}.material-bar-inner{justify-content:space-between;gap:16px}.brand-mark{min-width:140px;display:flex;align-items:center;font-size:16px;font-weight:700;color:var(--title)}.brand-mark img,.footer-brand img,.drawer-brand img{height:28px;width:auto;max-width:160px;object-fit:contain}.drawer-trigger{border:1px solid var(--line-strong);border-radius:10px;min-width:92px}.app-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;font-size:14px;font-weight:700}.case-tabs{height:40px;background:#0A0A0A;border-bottom:1px solid var(--line)}.case-tabs-inner{justify-content:center;gap:8px}.case-tabs a{min-width:90px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:13px;color:var(--text)}.case-tabs a.is-current{background:var(--silver-hi);color:#0D0D0D}.site-main{padding-top:142px;padding-bottom:40px}.page-hero{padding:36px 0 22px}.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}.page-hero h1{margin:8px 0 12px;font-size:24px;line-height:1.3;color:var(--title)}.page-hero p{margin:0;max-width:820px}.section{padding:18px 0}.section h2{margin:0 0 12px;font-size:20px;color:var(--title)}.section h3{margin:0 0 8px;font-size:16px;color:var(--silver-hi)}.section p{margin:0 0 14px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.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))}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;min-width:0}.card p:last-child{margin-bottom:0}.media-slot{height:200px;background:var(--ink);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:16px}.media-slot.tall{height:340px}.media-slot.banner{height:260px}.media-slot.small{height:180px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.action-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700;border:1px solid var(--line-strong)}.btn.primary{background:linear-gradient(135deg,#E8E8E8 0%,#C8C8C8 55%,#8A8A8A 100%);color:#0D0D0D;border-color:transparent}.btn.secondary{background:#111;color:var(--silver-hi)}.btn:hover,.app-link:hover,.case-tabs a:hover,.drawer-trigger:hover,.text-control:hover{filter:brightness(1.08)}a:focus-visible,button:focus-visible{outline:2px solid var(--silver-hi);outline-offset:2px}.feature-number{font-size:30px;line-height:1;color:var(--silver-hi);font-weight:700;margin-bottom:10px}.shelf-list,.plain-list,.timeline{display:grid;gap:12px}.shelf-row,.list-row,.timeline-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}.shelf-row{display:grid;grid-template-columns:72px 1fr auto;gap:14px;align-items:start}.shelf-code{font-size:12px;color:#0D0D0D;background:var(--silver);border-radius:999px;padding:4px 8px;text-align:center;white-space:nowrap}.shelf-row h3,.list-row h3,.timeline-item h3{margin:0 0 6px}.timeline{position:relative;padding-left:22px}.timeline:before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:var(--line-strong)}.timeline-item{position:relative}.timeline-item:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:var(--silver-hi);left:-20px;top:22px}.status{display:inline-flex;padding:3px 9px;border-radius:999px;background:#2B2B2B;color:var(--silver-hi);font-size:12px;margin-top:8px}.notice{border-left:3px solid var(--red);padding:14px 16px;background:#151111;border-radius:0 10px 10px 0;color:var(--text)}.faq-item{padding:18px 0;border-bottom:1px solid var(--line)}.faq-item:last-child{border-bottom:0}.faq-item h2{font-size:17px;margin-bottom:8px}.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:34px 0 calc(24px + env(safe-area-inset-bottom));font-size:13px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:22px}.footer-grid h2{font-size:13px;color:var(--silver-hi);margin:0 0 10px}.footer-grid a{display:block;color:var(--muted);padding:3px 0}.footer-brand{display:flex;flex-direction:column;gap:6px}.footer-brand strong{color:var(--title);font-size:16px}.footer-brand span{color:var(--soft);letter-spacing:.12em}.footer-note{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);color:var(--muted)}.footer-note p{margin:0 0 8px}.screen-mask{position:fixed;z-index:80;inset:0;background:rgba(0,0,0,.68);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.screen-mask.is-visible{opacity:1;visibility:visible;pointer-events:auto}.drawer-panel{position:fixed;z-index:90;top:0;left:0;width:400px;max-width:86vw;height:100dvh;background:#0B0B0B;border-right:1px solid var(--line-strong);box-shadow:var(--shadow);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s}.drawer-panel.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;padding:0 16px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-scroll{height:calc(100dvh - 72px);overflow:auto;padding:14px 16px 28px}.drawer-group{padding-bottom:14px}.drawer-group h2{font-size:12px;color:var(--soft);font-weight:400;margin:8px 0}.drawer-group a{display:block;padding:11px 10px;border-radius:10px}.drawer-group a:hover{background:var(--panel)}.drawer-group strong{display:block;color:var(--title);font-size:14px}.drawer-group span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.search-panel{position:fixed;z-index:91;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-panel.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:var(--ink);border:1px solid var(--line-strong);box-shadow:var(--shadow);border-radius:12px;padding:18px}.search-head{display:flex;justify-content:space-between;align-items:center}.search-head strong{color:var(--title);font-size:16px}.search-card p{color:var(--muted)}.search-links{display:flex;gap:10px;flex-wrap:wrap}.search-links a{display:inline-flex;min-height:44px;align-items:center;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:#101010}.mobile-bottom{display:none}.brand-cover{padding:26px 0 12px}.brand-copy{max-width:760px;margin-top:18px}.brand-copy h1{font-size:24px;margin:8px 0}.brand-copy .lead{font-size:17px;color:var(--silver-hi)}.split{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:start}.number-list{display:grid;gap:10px}.number-list .item{display:grid;grid-template-columns:52px 1fr;gap:12px;padding:14px;background:var(--panel);border:1px solid var(--line);border-radius:12px}.number-list .num{font-size:24px;color:var(--silver-hi);font-weight:700}.tagline{color:var(--silver-hi);font-size:18px}.muted{color:var(--muted)}.kicker{color:var(--red);font-size:12px}.prose p{max-width:900px}.compact p{margin-bottom:8px}
@media(max-width:800px){.case-tabs{display:none}.site-main{padding-top:94px;padding-bottom:72px}.grid-3,.grid-4,.grid-2,.split{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.material-bar-inner{gap:8px}.brand-mark{min-width:0;max-width:34%;font-size:15px}.brand-mark img{max-width:118px}.drawer-trigger{min-width:86px}.app-link{padding:0 12px}.mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#090909;border-top:1px solid var(--line-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;min-width:0}.mobile-bottom a.is-current{background:var(--silver-hi);color:#0D0D0D}.site-footer{padding-bottom:calc(68px + env(safe-area-inset-bottom))}.media-slot.banner{height:260px}.media-slot.small{height:180px}.search-panel{inset:0;top:0;background:#080808;padding:16px;display:flex;align-items:flex-start}.search-card{margin-top:24px;width:100%;border:0;background:#080808;box-shadow:none}.shelf-row{grid-template-columns:64px 1fr}.shelf-row>a,.shelf-row .btn{grid-column:1/-1}.page-hero{padding-top:28px}}
@media(max-width:520px){.shell{width:calc(100% - 32px)}.footer-grid{grid-template-columns:1fr 1fr}.brand-mark span{white-space:nowrap}.media-slot.banner{height:220px}.media-slot.tall{height:320px}.panel,.card{padding:16px}.page-hero h1{font-size:24px}.material-bar{height:60px}}