:root{--bg:#000;--deep:#050505;--panel:#0b0b0b;--panel2:#121212;--text:#f7f7f7;--body:#ddd;--muted:#a5a5a5;--soft:#727272;--line:rgba(255,255,255,.12);--strong:rgba(255,255,255,.4);--max:1320px}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:#000}body{margin:0;background:#000;color:var(--body);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}img{display:block;max-width:100%;height:auto}:focus-visible{outline:2px solid #fff;outline-offset:3px}[hidden]{display:none!important}.site-shell{width:min(calc(100% - 40px),var(--max));margin:auto}.skip-link{position:fixed;top:8px;left:8px;z-index:9999;background:#fff;color:#000;padding:9px 13px;transform:translateY(-150%)}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:900;background:rgba(0,0,0,.98)}.top-strip,.brand-nav-wrap,.channel-nav-wrap{border-bottom:1px solid var(--line)}.top-strip-inner{min-height:32px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;font-size:12px;color:var(--muted)}.top-brand{margin:0;white-space:nowrap}.top-links,.top-actions{display:flex;gap:20px}.top-actions{justify-content:flex-end;align-items:center}.plain-button,.menu-trigger,.more-trigger,.panel-close{border:0;background:transparent;cursor:pointer}.brand-nav{height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.brand-side{display:flex;align-items:center;gap:20px}.brand-side-right{justify-content:flex-end}.menu-trigger{min-height:44px;display:flex;align-items:center;gap:9px;padding:0}.current-channel{color:var(--soft);padding-left:18px;border-left:1px solid var(--line)}.brand-logo,.footer-logo,.panel-logo{display:inline-flex;align-items:center;gap:10px}.brand-logo img{height:48px;width:auto;max-width:210px;object-fit:contain}.footer-logo img,.panel-logo img{height:44px;width:auto;object-fit:contain}.brand-mark{width:42px;height:42px;border:2px solid #fff;display:grid;place-items:center;font-size:28px;font-weight:900}.brand-word{display:grid;line-height:1.05}.brand-word strong,.footer-logo strong,.panel-logo strong{font-size:21px;letter-spacing:.24em}.brand-word small,.footer-logo small,.panel-logo small{font-size:8px;letter-spacing:.22em;color:var(--muted);margin-top:5px}.nav-app,.button-primary{background:#fff;color:#000!important;border:1px solid #fff}.nav-app{min-height:44px;padding:9px 16px;display:flex;align-items:center;font-weight:700}.channel-nav{height:38px;display:flex}.channel-scroll{display:flex;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}.channel-scroll::-webkit-scrollbar{display:none}.channel-link,.more-trigger{height:38px;display:flex;align-items:center;padding:0 14px;color:var(--muted);font-size:13px;white-space:nowrap;border-bottom:2px solid transparent}.channel-link:hover,.channel-link.is-active,.more-trigger:hover,.more-trigger.is-active{color:#fff;border-bottom-color:#fff}.more-wrap{position:relative}.more-trigger{padding-right:0}.more-menu{position:absolute;right:0;top:42px;width:190px;background:#0b0b0b;border:1px solid var(--line);padding:8px;box-shadow:0 18px 46px rgba(0,0,0,.48)}.more-menu a{display:block;padding:10px 12px;color:var(--muted);font-size:13px}.more-menu a:hover,.more-menu a.is-active{background:#1a1a1a;color:#fff}
main{min-height:60vh}.hero{padding:62px 0 84px;border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(330px,.75fr);gap:50px;align-items:center}.hero-media,.app-image{position:relative;min-height:560px;background:#101010;border:1px solid var(--line);overflow:hidden;display:grid;place-items:center}.hero-media img,.feature-large img{width:100%;height:100%;object-fit:cover;filter:grayscale(1)}.app-image img{width:100%;height:100%;object-fit:contain;filter:grayscale(1)}.media-fallback{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(135deg,#050505,#181818)}.media-fallback span{font-size:clamp(70px,13vw,180px);font-weight:900;color:#fff;opacity:.12}.section-kicker{margin:0 0 9px;color:var(--muted);font-size:12px;letter-spacing:.18em;text-transform:uppercase}.hero-copy h1{font-size:clamp(46px,6vw,82px);line-height:1.04;color:#fff;margin:0 0 24px}.hero-copy>p{color:var(--muted);margin:0}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 36px}.button-primary,.button-secondary{min-height:48px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;white-space:nowrap}.button-secondary{border:1px solid var(--strong)}.hero-notes{border-top:1px solid var(--line)}.hero-note{display:grid;grid-template-columns:105px 1fr auto;gap:18px;padding:15px 0;border-bottom:1px solid var(--line);font-size:13px}.hero-note strong{color:#fff}.hero-note span{color:var(--muted)}
.page-section{padding:88px 0;border-bottom:1px solid var(--line)}.page-section.compact{padding:64px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}.section-head h2{font-size:clamp(30px,4vw,54px);line-height:1.12;color:#fff;margin:0}.section-head p{margin:0}.section-link{min-height:44px;display:flex;align-items:center;border-bottom:1px solid var(--strong);white-space:nowrap}.grid-2,.grid-3,.grid-4{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:var(--panel);border:1px solid var(--line);padding:26px}.card:hover{background:var(--panel2);border-color:var(--strong)}.card-tag{font-size:11px;letter-spacing:.14em;color:#c7c7c7}.card-number{display:block;margin-bottom:34px;color:#fff;font-size:12px;letter-spacing:.16em}.card h3{font-size:22px;line-height:1.35;color:#fff;margin:10px 0}.card p{color:var(--muted);margin:0 0 18px}.card-meta{font-size:12px;color:var(--soft);border-top:1px solid var(--line);padding-top:13px}.card-link{display:inline-flex;margin-top:18px;border-bottom:1px solid var(--strong);color:#fff}.feature-split{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.feature-large{min-height:460px;position:relative;overflow:hidden;border:1px solid var(--line);background:#0b0b0b;padding:34px;display:flex;align-items:flex-end}.feature-large img{position:absolute;inset:0;opacity:.38}.feature-large:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(0,0,0,.96));pointer-events:none}.feature-content{position:relative;z-index:1}.feature-content h3{font-size:clamp(30px,4vw,52px);color:#fff;line-height:1.15;margin:8px 0 15px}.feature-content p{max-width:720px;color:#ccc}.stack{display:grid;gap:18px}.list-card{display:grid;grid-template-columns:32px 1fr auto;gap:16px;padding:20px;border:1px solid var(--line);background:#080808}.list-card h3{margin:0 0 6px;color:#fff}.list-card p{margin:0;color:var(--muted);font-size:14px}.list-card a{border-bottom:1px solid var(--strong);font-size:13px}.catalog{border-top:1px solid var(--line)}.catalog-row{display:grid;grid-template-columns:70px 1fr 1.3fr auto;gap:22px;padding:23px 0;border-bottom:1px solid var(--line)}.catalog-row strong{color:#fff}.catalog-row p{margin:0;color:var(--muted)}.timeline{counter-reset:step}.timeline-item{display:grid;grid-template-columns:72px 250px 1fr;gap:26px;padding:29px 0;border-top:1px solid var(--line)}.timeline-item:before{counter-increment:step;content:counter(step,decimal-leading-zero);color:#fff;font-weight:700}.timeline-item h3{margin:0;color:#fff}.timeline-item p{margin:0;color:var(--muted)}
.page-hero{padding:70px 0 60px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#050505,#000)}.page-hero-inner{display:grid;grid-template-columns:1fr .45fr;gap:48px;align-items:end}.page-hero h1{font-size:clamp(48px,7vw,92px);line-height:1.05;color:#fff;margin:0 0 22px}.page-hero .lead{max-width:850px;color:#bdbdbd;font-size:17px;margin:0}.page-hero-aside{border-left:1px solid var(--line);padding-left:26px;color:var(--muted);font-size:14px}.page-hero-aside strong{display:block;color:#fff}.info-list{border-top:1px solid var(--line)}.info-item{display:grid;grid-template-columns:minmax(170px,.35fr) 1fr;gap:34px;padding:29px 0;border-bottom:1px solid var(--line)}.info-item h2{margin:0;color:#fff;font-size:24px}.info-item p{margin:0;color:var(--muted)}.subline{display:block;margin-top:11px;color:#c7c7c7;font-size:13px}.notice{border:1px solid var(--strong);padding:25px;background:#050505}.notice h2{margin:0 0 9px;color:#fff}.notice p,.prose-intro{margin:0;color:var(--muted)}.prose-intro{font-size:18px;max-width:900px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{cursor:pointer;list-style:none;padding:21px 0;color:#fff;font-weight:700}summary::-webkit-details-marker{display:none}summary:after{content:"＋";float:right;color:var(--muted)}details[open] summary:after{content:"－"}.faq-answer{padding:0 0 23px;max-width:900px;color:var(--muted)}.link-cloud{display:flex;flex-wrap:wrap;gap:12px}.link-cloud a{border:1px solid var(--line);padding:11px 15px}.link-cloud a:hover{background:#fff;color:#000}.app-showcase{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px;align-items:center}.status-table{border-top:1px solid var(--line)}.status-row{display:grid;grid-template-columns:1fr 1.2fr 180px;gap:22px;padding:19px 0;border-bottom:1px solid var(--line)}.status-row strong{color:#fff}.status-pill{justify-self:start;border:1px solid var(--strong);padding:4px 10px;font-size:12px;color:#c7c7c7}
.site-footer{padding:70px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;padding-bottom:50px}.footer-brand p{max-width:350px;color:var(--muted);font-size:13px}.footer-logo{margin-bottom:17px}.footer-column{display:flex;flex-direction:column;gap:8px}.footer-column h2{font-size:13px;color:#fff}.footer-column a{font-size:13px;color:var(--muted)}.footer-note{border-top:1px solid var(--line);padding-top:19px;color:var(--soft);font-size:12px;display:flex;justify-content:space-between;gap:30px}.footer-note p{margin:0;max-width:900px}
.screen-overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:1100;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.screen-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.site-panel{position:fixed;inset:0 auto 0 0;width:min(540px,90vw);background:#050505;z-index:1200;transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.25s;display:flex;flex-direction:column;border-right:1px solid var(--line)}.site-panel.is-open{transform:none;visibility:visible;pointer-events:auto}.panel-head{height:76px;padding:0 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.panel-close{font-size:34px;padding:8px}.panel-body{overflow-y:auto;padding:23px}.panel-group{margin-bottom:26px}.panel-group h2{font-size:12px;color:var(--soft);letter-spacing:.16em}.panel-group a{display:grid;grid-template-columns:132px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}.panel-group strong{color:#fff}.panel-group span{color:var(--muted);font-size:12px}.search-panel{position:fixed;inset:0;background:#000;z-index:1250;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;overflow-y:auto}.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto}.search-head{height:82px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.search-content{padding:58px 0 100px}.search-content label{display:block;font-size:clamp(28px,5vw,60px);font-weight:800;color:#fff}.search-content input{width:100%;border:0;border-bottom:2px solid #fff;background:transparent;color:#fff;font-size:clamp(22px,4vw,46px);padding:12px 0}.search-hint{color:var(--soft)}.search-tags{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0}.search-tags a,.search-quick a{border:1px solid var(--line);padding:11px 15px}.search-quick a{display:inline-block;margin:0 8px 8px 0}.mobile-bottom-nav{display:none}
@media(max-width:1050px){.hero-grid,.feature-split,.app-showcase{grid-template-columns:1fr}.hero-copy{order:1}.hero-media{order:2;min-height:460px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-brand{grid-column:1/-1}.page-hero-inner{grid-template-columns:1fr}.page-hero-aside{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.timeline-item{grid-template-columns:50px 210px 1fr}.catalog-row{grid-template-columns:50px 1fr 1.3fr}.catalog-row a{grid-column:2/-1}}
@media(max-width:760px){.site-shell{width:min(calc(100% - 28px),var(--max))}.desktop-only{display:none!important}.top-strip-inner{grid-template-columns:1fr auto;min-height:30px}.top-links{display:none}.brand-nav{height:64px;grid-template-columns:1fr auto 1fr}.brand-side-right{justify-content:flex-end}.brand-mark{width:36px;height:36px;font-size:24px}.brand-word strong{font-size:18px}.nav-app{min-height:42px;padding:8px 10px;font-size:12px}.channel-link,.more-trigger{padding:0 12px}.hero{padding:40px 0 60px}.hero-copy h1{font-size:42px}.hero-media{min-height:58vw}.hero-note{grid-template-columns:86px 1fr}.hero-note a{grid-column:2}.page-section{padding:62px 0}.section-head{display:block}.section-link{margin-top:16px;width:max-content}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.feature-large{min-height:410px;padding:24px}.list-card{grid-template-columns:28px 1fr}.list-card a{grid-column:2}.catalog-row{grid-template-columns:42px 1fr}.catalog-row p,.catalog-row a{grid-column:2}.timeline-item{grid-template-columns:42px 1fr;gap:12px}.timeline-item p{grid-column:2}.page-hero{padding:47px 0}.page-hero h1{font-size:46px}.info-item{grid-template-columns:1fr;gap:11px}.status-row{grid-template-columns:1fr;gap:7px}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.footer-note{display:block;padding-bottom:76px}.footer-note p+p{margin-top:12px}.panel-group a{grid-template-columns:1fr;gap:2px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1000;height:calc(62px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(0,0,0,.97);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--soft)}.mobile-bottom-nav a span{font-size:18px}.mobile-bottom-nav a.is-active{color:#fff}.app-image{min-height:420px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.site-panel,.search-panel,.screen-overlay{transition:none}}