: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);--line-hi:rgba(255,255,255,.42);--g-dark:linear-gradient(135deg,#050505 0%,#171717 52%,#090909 100%);--g-screen:linear-gradient(120deg,#f5f5f5 0%,#bdbdbd 48%,#fff 100%);--g-card:linear-gradient(160deg,#1b1b1b 0%,#0d0d0d 70%,#050505 100%);--header:102px;--z-header:30;--z-bottom:35;--z-overlay:70;--z-drawer:80;--z-search:60}*{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;line-height:1.8;overflow-x:hidden}body.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(1320px,calc(100% - 56px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:8px;transform:translateY(-160%);background:#fff;color:#111;padding:8px 12px;z-index:999}.skip-link:focus{transform:none}.site-header{position:fixed;inset:0 0 auto 0;z-index:var(--z-header);background:#050505}.brand-rail{height:68px;display:flex;align-items:center;gap:24px;background:linear-gradient(90deg,#050505,#171717);border-bottom:1px solid rgba(255,255,255,.3)}.brand{display:flex;align-items:center;min-width:155px}.brand img{max-height:36px;width:auto}.brand span{display:flex;gap:8px;align-items:baseline}.brand strong{font-size:22px;color:#fff}.brand small{font-size:10px;letter-spacing:.18em;color:#bbb}.desktop-main{display:flex;gap:10px;align-items:center;margin:auto}.desktop-main a,.channel-links a{padding:8px 10px;color:#ccc}.desktop-main a.active{background:#efefef;color:#111}.channel-rail{height:34px;border-bottom:1px solid var(--line);background:#090909}.channel-links{height:100%;display:flex;align-items:center;justify-content:center;gap:24px}.channel-links:before,.channel-links:after{content:"";width:42px;height:1px;background:#aaa;pointer-events:none}.channel-links a{padding:2px 6px;font-size:13px}.channel-links a.active{color:#fff;text-decoration:underline;text-underline-offset:5px}.header-actions{display:flex;gap:8px;align-items:center}.icon-btn,.menu-btn{min-width:44px;min-height:44px;border:1px solid var(--line);background:#0d0d0d;color:#fff;border-radius:6px;cursor:pointer}.menu-btn{padding:0 14px}.app-link{padding:8px 4px}.page-main{padding-top:calc(var(--header) + 28px);min-height:60vh}.hero,.section{padding:34px 0}.hero h1,.page-hero h1{font-size:clamp(30px,5vw,64px);line-height:1.08;margin:14px 0 18px;color:var(--title);letter-spacing:-.02em}.eyebrow{font-size:12px;letter-spacing:.16em;color:#bbb}.lead{font-size:18px;max-width:860px;color:#ddd}.media-frame{display:flex;align-items:center;justify-content:center;overflow:hidden;background:linear-gradient(145deg,#050505,#202020);border:1px solid var(--line);border-radius:10px}.media-frame img{width:100%;height:100%;object-fit:contain;object-position:center}.placeholder{min-height:220px;aspect-ratio:16/9;color:#aaa}.cover-frame{max-height:520px}.cover-frame img{max-height:520px}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:12px}.section h2,.section-head h2,.content-card h2{font-size:clamp(24px,3vw,38px);line-height:1.22;margin:0;color:#fff}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.index-card,.content-card,.status-card,.term-card{background:var(--g-card);border:1px solid var(--line);border-radius:10px;padding:22px}.index-card .num{font-size:13px;color:#999}.index-card h3,.content-card h3{font-size:22px;color:#fff;margin:8px 0}.index-card p,.content-card p{margin:.4em 0}.split{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:center}.bullet-list{display:grid;gap:10px;padding:0;list-style:none}.bullet-list li{border-top:1px solid var(--line);padding-top:10px}.film-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.film-card{border-top:1px solid var(--line-hi);padding-top:12px}.film-card .media-frame{aspect-ratio:16/9}.summary-rows{display:grid}.summary-row{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:16px 0;border-top:1px solid var(--line)}.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.timeline article{border-top:2px solid #bdbdbd;padding-top:12px}.tag{display:inline-block;border:1px solid var(--line-hi);padding:3px 8px;border-radius:4px;font-size:12px;color:#eee}.soft-section{background:#efefef;color:#151515;padding:40px 0;margin:28px 0}.soft-section h2,.soft-section h3{color:#151515}.soft-section a{color:#151515;text-decoration:underline;text-underline-offset:4px}.page-hero{padding:30px 0}.page-hero .hero-copy{max-width:900px}.article-body{max-width:900px}.article-body h2{font-size:30px;color:#fff;margin-top:1.6em}.article-body h3{font-size:22px;color:#fff}.article-body p{font-size:17px}.meta-table{width:100%;border-collapse:collapse}.meta-table th,.meta-table td{padding:12px;border-top:1px solid var(--line);text-align:left;vertical-align:top}.meta-table th{width:180px;color:#aaa;font-weight:400}.note{border-left:2px solid #aaa;padding:12px 16px;background:#0b0b0b}.site-footer{background:linear-gradient(#080808,#151515);border-top:1px solid rgba(255,255,255,.3);margin-top:48px;padding:42px 0 28px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:28px}.site-footer h2{font-size:14px;color:#fff}.site-footer section>a{display:block;color:#bbb;margin:5px 0}.footer-brand p{max-width:420px;color:#aaa}.footer-note{display:flex;justify-content:space-between;gap:22px;border-top:1px solid var(--line);margin-top:28px;padding-top:18px;color:#888;font-size:13px}.drawer{position:fixed;right:0;top:0;width:min(92vw,380px);height:100dvh;background:linear-gradient(160deg,#090909,#1a1a1a);z-index:var(--z-drawer);transform:translateX(105%);visibility:hidden;opacity:0;pointer-events:none;transition:transform .24s ease,opacity .24s ease,visibility .24s}.drawer.open{transform:none;visibility:visible;opacity:1;pointer-events:auto}.drawer-head{height:68px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.drawer-body{padding:18px 18px 40px;overflow:auto;max-height:calc(100dvh - 68px)}.drawer-body section{margin-bottom:22px}.drawer-body h2{font-size:13px;color:#888}.drawer-body a{display:block;padding:10px 0;border-top:1px solid var(--line)}.drawer-body a strong{display:block;color:#fff}.drawer-body a span{display:block;font-size:13px;color:#999}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:var(--z-overlay);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .22s,visibility .22s}.overlay.open{visibility:visible;opacity:1;pointer-events:auto}.search-panel{position:fixed;left:0;right:0;top:68px;z-index:var(--z-search);background:#0b0b0b;border-bottom:1px solid var(--line-hi);padding:18px 0 24px}.search-panel[hidden]{display:none}.search-head{display:flex;align-items:center;justify-content:space-between}.search-panel label{display:block;color:#aaa;margin:8px 0}.search-panel input{width:100%;background:#151515;color:#fff;border:1px solid var(--line-hi);padding:13px 14px;border-radius:6px}.quick-links{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.quick-links a{padding:12px;border:1px solid var(--line);border-radius:6px}.quick-links span{display:block;font-size:12px;color:#888}.mobile-bottom{display:none}.hero-links,.link-row{display:flex;gap:16px;flex-wrap:wrap}.text-link{border-bottom:1px solid #bbb;padding:6px 0}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.app-showcase{display:grid;grid-template-columns:minmax(0,360px) 1fr;gap:28px;align-items:center}.app-visual{max-height:460px}.app-visual img{max-height:460px}.icon-visual{width:72px;height:72px;aspect-ratio:1}.icon-visual img{max-width:72px;max-height:72px}.faq details{border-top:1px solid var(--line);padding:14px 0}.faq summary{cursor:pointer;color:#fff;font-weight:700}.terms{display:grid;gap:16px}.term-card h2{font-size:24px}.muted{color:var(--muted)}a:hover,button:hover{filter:brightness(1.12)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #fff;outline-offset:3px}@media(max-width:980px){.desktop-main,.channel-rail,.app-link{display:none}:root{--header:68px}.brand-rail{width:calc(100% - 32px);gap:10px}.brand{min-width:0;flex:1}.menu-btn{font-size:0;width:44px;padding:0}.menu-btn:after{content:"☰";font-size:20px}.grid-3,.film-strip{grid-template-columns:repeat(2,1fr)}.split,.app-showcase{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.status-grid{grid-template-columns:repeat(2,1fr)}.page-main{padding-bottom:74px}.mobile-bottom{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;z-index:var(--z-bottom);left:0;right:0;bottom:0;min-height:56px;padding-bottom:env(safe-area-inset-bottom);background:linear-gradient(#090909,#181818);border-top:1px solid var(--line-hi)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:56px;color:#bbb}.mobile-bottom a.active{background:#fff;color:#111}.site-footer{margin-bottom:56px}.quick-links{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.shell{width:calc(100% - 32px)}.grid-3,.grid-2,.film-strip,.status-grid{grid-template-columns:1fr}.summary-row{grid-template-columns:1fr}.timeline{grid-template-columns:1fr 1fr}.cover-frame,.cover-frame img{max-height:320px}.hero,.section{padding:24px 0}.section-head{align-items:start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-note{flex-direction:column}.quick-links{grid-template-columns:1fr}.page-hero h1{font-size:clamp(30px,11vw,48px)}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}