:root{--bg:#050505;--deep:#0a0a0a;--card:#111;--hover:#191919;--light:#efefef;--title:#fafafa;--text:#d8d8d8;--muted:#a3a3a3;--dark:#151515;--line:rgba(255,255,255,.14);--line2:rgba(255,255,255,.42);--shell:1320px;--header:102px;--z-header:40;--z-bottom:35;--z-overlay:70;--z-drawer:80;--z-search:75}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}body.is-locked{overflow:hidden}a,button{position:relative;z-index:2;pointer-events:auto;touch-action:manipulation}a{color:inherit;text-decoration:none}button,input{font:inherit}img{display:block;max-width:100%;height:auto}.shell{width:min(var(--shell),calc(100% - 56px));margin:auto}.site-header{position:fixed;inset:0 0 auto;z-index:var(--z-header)}.brand-rail{height:68px;background:linear-gradient(90deg,#050505,#171717);border-bottom:1px solid rgba(255,255,255,.28)}.brand-row{height:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;min-width:max-content;font-weight:700;color:#fff;letter-spacing:.05em}.brand img{height:34px;width:auto}.brand small{font-size:11px;color:#bbb}.main-nav{display:flex;align-items:center;gap:5px;margin:auto}.main-nav a,.app-link{min-height:44px;display:flex;align-items:center;padding:0 12px;color:#ccc}.main-nav a:hover,.main-nav a:focus-visible,.main-nav a.is-current{background:#efefef;color:#151515}.header-actions{display:flex;align-items:center;gap:8px}.icon-btn,.menu-btn,.close-btn{min-height:44px;min-width:44px;border:1px solid var(--line);background:#111;color:#eee;border-radius:6px;cursor:pointer}.menu-btn{padding:0 14px}.channel-rail{height:34px;background:#090909;border-bottom:1px solid var(--line)}.channel-nav{height:34px;display:flex;align-items:center;justify-content:center;gap:28px;color:#aaa;font-size:14px}.channel-nav:before,.channel-nav:after{content:"";width:38px;height:1px;background:#777;pointer-events:none}.channel-nav a.is-current,.channel-nav a:hover{color:#fff}.search-panel{position:fixed;top:102px;left:0;right:0;z-index:var(--z-search);background:linear-gradient(135deg,#111,#050505);border-bottom:1px solid var(--line2);padding:22px 0}.search-inner{display:grid;grid-template-columns:1fr minmax(240px,420px) auto;gap:14px;align-items:center}.search-inner label{font-weight:700;color:#fff}.search-inner input{width:100%;background:#050505;border:1px solid var(--line2);color:#fff;border-radius:6px;padding:12px}.search-links{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap}.search-links a{border-bottom:1px solid #555;padding:6px 2px}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.66);z-index:var(--z-overlay)}.drawer{position:fixed;right:0;top:0;width:min(92vw,380px);height:100dvh;z-index:var(--z-drawer);background:linear-gradient(145deg,#171717,#050505);border-left:1px solid var(--line2);transform:translateX(102%);visibility:hidden;opacity:0;pointer-events:none;transition:transform .24s ease,opacity .24s ease,visibility .24s}.drawer.is-open{transform:none;visibility:visible;opacity:1;pointer-events:auto}.drawer-head{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid var(--line)}.drawer-body{padding:16px 18px 28px;overflow:auto;height:calc(100dvh - 68px)}.drawer-body section{padding:8px 0 14px;border-bottom:1px solid var(--line)}.drawer-body h2{font-size:14px;color:#999;letter-spacing:.15em}.drawer-body a{display:grid;grid-template-columns:70px 1fr;gap:12px;padding:9px 0}.drawer-body a span{color:#fff}.drawer-body a small{color:#999}.site-header+*{}main{padding-top:var(--header)}.hero,.section{padding:54px 0}.hero-copy{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:end;padding-top:28px}.eyebrow{color:#aaa;letter-spacing:.16em;font-size:13px}.hero h1,.page-hero h1{font-size:clamp(30px,5vw,64px);line-height:1.12;margin:.2em 0;color:#fff}.lede{font-size:17px;max-width:860px}.text-links{display:flex;gap:18px;flex-wrap:wrap}.text-links a{border-bottom:1px solid #ddd}.media-frame{display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(145deg,#050505,#202020)}.media-frame img{width:100%;height:100%;object-fit:contain;object-position:center}.media-placeholder{min-height:240px;color:#888}.hero-media{max-height:520px}.hero-media img{max-height:520px}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:22px}.section h2{font-size:clamp(24px,3.5vw,38px);line-height:1.25;color:#fff;margin:0}.section p{margin-top:0}.index-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.index-card{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:190px}.index-card b{font-size:28px;color:#777}.index-card h3{color:#fff;margin:.3em 0}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:linear-gradient(160deg,#1b1b1b 0%,#0d0d0d 70%,#050505 100%);border:1px solid var(--line);border-radius:8px;padding:18px}.card h3{color:#fff}.card .media-frame{margin:-18px -18px 18px;min-height:210px}.summary-list{display:grid;gap:0;border-top:1px solid var(--line)}.summary-item{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line)}.timeline article{background:#0c0c0c;padding:20px}.timeline b{display:block;color:#777}.light-section{background:linear-gradient(120deg,#f5f5f5,#bdbdbd 48%,#fff);color:#151515}.light-section h2,.light-section h3{color:#151515}.page-hero{padding:62px 0 34px}.page-hero .lede{color:#bbb}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:36px}.prose article{padding:28px 0;border-top:1px solid var(--line)}.prose h2,.prose h3{color:#fff}.prose p{font-size:16.5px}.sidebox{position:sticky;top:126px;align-self:start;background:#111;border:1px solid var(--line);padding:18px;border-radius:8px}.fact-table{display:grid;grid-template-columns:170px 1fr;border-top:1px solid var(--line)}.fact-table dt,.fact-table dd{margin:0;padding:12px;border-bottom:1px solid var(--line)}.fact-table dt{color:#999}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.status-card{border:1px solid var(--line);padding:20px;background:#101010}.faq details{border-top:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;color:#fff;font-weight:700}.site-footer{background:linear-gradient(#111,#050505);border-top:1px solid rgba(255,255,255,.28);padding:54px 0 88px}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:28px}.footer-brand img{height:32px;width:auto}.footer-brand h2{color:#fff}.footer-brand small{display:block;font-size:12px;color:#aaa}.footer-col{display:flex;flex-direction:column;gap:7px}.footer-col h3{color:#fff}.footer-col a{color:#aaa}.footer-note{margin-top:30px;padding-top:22px;border-top:1px solid var(--line);color:#888}.mobile-bottom{display:none}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px}.quote-note{border-left:2px solid #aaa;padding-left:18px;color:#bbb}.app-shot{max-height:460px}.app-shot img{max-height:460px;width:auto}.focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #fff;outline-offset:2px}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media(max-width:980px){.main-nav{display:none}.channel-nav{gap:18px}.index-grid{grid-template-columns:repeat(2,1fr)}.cards-3{grid-template-columns:1fr 1fr}.timeline{grid-template-columns:repeat(3,1fr)}.content-grid{grid-template-columns:1fr}.sidebox{position:static}.footer-grid{grid-template-columns:2fr 1fr 1fr}.footer-col:nth-of-type(n+4){margin-top:8px}.status-grid{grid-template-columns:1fr 1fr}}@media(max-width:700px){:root{--header:68px}.shell{width:min(100% - 32px,var(--shell))}.brand-row{gap:10px}.brand{margin-right:auto}.brand img{max-width:150px;height:30px}.brand small{display:none}.menu-btn{font-size:0;width:44px;padding:0}.menu-btn:after{content:"☰";font-size:20px}.app-link{display:none}.channel-rail{display:none}.search-panel{top:68px}.search-inner{grid-template-columns:1fr auto}.search-inner label,.search-inner input{grid-column:1/-1}.hero,.section{padding:38px 0}.hero-copy{grid-template-columns:1fr;gap:14px}.hero-media,.hero-media img{max-height:320px}.index-grid{grid-template-columns:1fr}.split,.two-col{grid-template-columns:1fr}.cards-3{grid-template-columns:1fr}.summary-item{grid-template-columns:1fr;gap:5px}.timeline{grid-template-columns:1fr 1fr}.fact-table{grid-template-columns:1fr}.fact-table dd{padding-top:0}.status-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.site-footer{padding-bottom:105px}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:0;right:0;bottom:0;z-index:var(--z-bottom);background:linear-gradient(#181818,#090909);border-top:1px solid var(--line2);height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:56px;display:flex;align-items:center;justify-content:center;color:#bbb}.mobile-bottom a.is-current{background:#fff;color:#111}.page-hero{padding-top:44px}.card .media-frame{min-height:180px}}