:root{--bg:#000;--deep:#050505;--panel:#0b0b0b;--panel2:#121212;--hover:#1a1a1a;--white:#fff;--title:#f7f7f7;--text:#ddd;--muted:#a5a5a5;--quiet:#727272;--silver:#c7c7c7;--border:rgba(255,255,255,.12);--border-strong:rgba(255,255,255,.4);--shadow:0 18px 46px rgba(0,0,0,.48);--glow:0 12px 34px rgba(255,255,255,.08);--max:1320px;--header-h:145px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.75;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}a,button,input,summary{font:inherit}img{display:block;max-width:100%;height:auto}button{color:inherit;background:none;border:0;cursor:pointer}button,a{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid #fff;outline-offset:3px}.shell{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.skip-link{position:fixed;left:14px;top:-80px;z-index:999;background:#fff;color:#000;padding:10px 14px}.skip-link:focus{top:14px}.site-header{position:sticky;top:0;z-index:60;background:#000;box-shadow:0 1px 0 var(--border)}
.top-strip{height:32px;border-bottom:1px solid var(--border);font-size:12px;color:var(--muted)}.top-strip-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}.top-links{display:flex;gap:20px}.top-actions{display:flex;justify-content:flex-end;gap:16px;align-items:center}.top-strip a:hover,.text-button:hover{color:#fff}.brand-bar{height:72px;border-bottom:1px solid var(--border)}.brand-bar-inner{height:100%;display:grid;grid-template-columns:1fr minmax(160px,320px) 1fr;align-items:center}.brand-side{display:flex;align-items:center;gap:18px;min-width:0}.brand-right{justify-content:flex-end}.icon-text-button,.mini-link,.mini-solid{min-height:44px;display:inline-flex;align-items:center;justify-content:center}.icon-text-button{gap:10px}.menu-bars{width:22px;height:14px;border-top:1px solid #fff;border-bottom:1px solid #fff;position:relative}.menu-bars:after{content:"";position:absolute;left:0;right:0;top:6px;border-top:1px solid #fff}.current-channel{font-size:13px;color:var(--muted);padding-left:18px;border-left:1px solid var(--border)}.brand-logo{justify-self:center;display:flex;align-items:center;justify-content:center;gap:10px;min-height:44px;max-width:260px}.brand-logo img{max-height:48px;max-width:220px;object-fit:contain}.brand-cn{font-size:24px;font-weight:900;letter-spacing:.14em;color:#fff}.brand-en{font-size:10px;letter-spacing:.18em;color:var(--muted)}.mini-link{font-size:13px;color:var(--silver)}.mini-solid{padding:0 18px;background:#fff;color:#000;font-weight:700;font-size:13px}.channel-bar{height:41px;border-bottom:1px solid var(--border)}.channel-inner{height:100%;display:flex;align-items:stretch;gap:14px}.channel-scroll{display:flex;align-items:stretch;gap:4px;min-width:0;flex:1;white-space:nowrap}.channel-scroll a,.more-button{height:40px;display:flex;align-items:center;padding:0 12px;font-size:13px;color:var(--muted);position:relative}.channel-scroll a:hover,.channel-scroll a.is-active,.more-button:hover{color:#fff}.channel-scroll a.is-active:after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;background:#fff}.more-wrap{position:relative}.more-menu{position:absolute;right:0;top:100%;width:210px;padding:8px;background:#0b0b0b;border:1px solid var(--border);box-shadow:var(--shadow);visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-4px)}.more-menu.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.more-menu a{display:block;padding:10px 12px;color:var(--muted);font-size:13px}.more-menu a:hover{background:#1a1a1a;color:#fff}
.site-main{min-height:60vh}.hero{padding:56px 0 64px;border-bottom:1px solid var(--border)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);grid-template-rows:auto 1fr;gap:26px 34px;align-items:start}.hero-copy{grid-column:2;grid-row:1}.hero-media{grid-column:1;grid-row:1/3;min-height:520px;background:#0b0b0b;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media img{width:100%;height:100%;max-height:620px;object-fit:contain;filter:grayscale(1) saturate(.35)}.hero-media.no-image:before{content:"M";font-size:clamp(140px,22vw,340px);font-weight:900;line-height:1;color:#0e0e0e;letter-spacing:-.08em}.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--silver);margin:0 0 12px}.hero h1,.page-hero h1{margin:0;color:#fff;font-size:clamp(36px,5.8vw,78px);line-height:1.08;letter-spacing:-.04em}.hero-lead,.page-lead{margin:22px 0 0;font-size:16px;color:var(--muted);max-width:720px}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button-primary,.button-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;font-weight:700;font-size:14px;white-space:nowrap}.button-primary{background:#fff;color:#000}.button-secondary{border:1px solid var(--border-strong);color:#fff}.button-primary:hover{background:#ededed}.button-secondary:hover{background:#1a1a1a}.hero-news{grid-column:2;grid-row:2;display:grid;gap:1px;background:var(--border)}.hero-news a{background:#080808;padding:16px 18px}.hero-news strong{display:block;color:#fff;margin-bottom:3px}.hero-news span{display:block;color:var(--muted);font-size:13px;line-height:1.55}.hero-news a:hover{background:#121212}
.section{padding:72px 0;border-bottom:1px solid var(--border)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-kicker{margin:0 0 8px;color:var(--silver);font-size:12px;letter-spacing:.16em}.section h2,.section-head h2{margin:0;color:var(--title);font-size:clamp(28px,4vw,46px);line-height:1.15;letter-spacing:-.025em}.section-head p{max-width:580px;margin:0;color:var(--muted);font-size:14px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.card{background:#0b0b0b;border:1px solid var(--border);padding:24px;min-width:0}.card:hover{border-color:rgba(255,255,255,.24)}.card .num{display:block;color:#727272;font-size:12px;letter-spacing:.12em;margin-bottom:28px}.card h3{margin:0 0 10px;color:#fff;font-size:20px;line-height:1.35}.card p{margin:0;color:var(--muted);font-size:14px}.card a.inline-link,.inline-link{display:inline-flex;margin-top:18px;color:#fff;font-size:13px;border-bottom:1px solid var(--border-strong)}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.7fr);gap:36px;align-items:start}.split-media{border:1px solid var(--border);background:#0b0b0b;min-height:280px;display:flex;align-items:center;justify-content:center;overflow:hidden}.split-media img{max-height:540px;width:100%;object-fit:contain;filter:grayscale(.9) saturate(.5)}.copy h3{color:#fff;font-size:28px;margin:0 0 14px}.copy p{color:var(--muted)}.meta-list{display:grid;gap:0;border-top:1px solid var(--border);margin-top:22px}.meta-list div{display:grid;grid-template-columns:120px 1fr;gap:20px;padding:13px 0;border-bottom:1px solid var(--border)}.meta-list dt{color:var(--quiet);font-size:13px}.meta-list dd{margin:0;color:var(--text);font-size:14px}.quote{border-left:2px solid #fff;padding:8px 0 8px 20px;color:#fff;font-size:20px;line-height:1.65}.notice-box{border:1px solid var(--border-strong);padding:22px;background:#050505}.notice-box strong{color:#fff}.notice-box p{margin:8px 0 0;color:var(--muted)}
.page-hero{padding:64px 0 52px;border-bottom:1px solid var(--border)}.page-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.55fr);gap:42px;align-items:end}.page-hero-side{padding-left:22px;border-left:1px solid var(--border)}.page-hero-side p{margin:0;color:var(--muted);font-size:13px}.page-hero-side strong{display:block;color:#fff;font-size:13px;margin-bottom:8px}.content-list{display:grid;gap:0;border-top:1px solid var(--border)}.content-list article{display:grid;grid-template-columns:80px minmax(0,1fr) auto;gap:22px;padding:22px 0;border-bottom:1px solid var(--border);align-items:start}.content-list .index{color:var(--quiet);font-size:12px}.content-list h3{margin:0 0 6px;color:#fff;font-size:20px}.content-list p{margin:0;color:var(--muted);font-size:14px}.content-list .tag{font-size:12px;color:var(--silver);white-space:nowrap}.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.pill{border:1px solid var(--border);padding:7px 10px;color:var(--muted);font-size:12px}.steps{counter-reset:step;display:grid;gap:12px}.step{counter-increment:step;display:grid;grid-template-columns:54px 1fr;gap:18px;padding:20px;border:1px solid var(--border);background:#090909}.step:before{content:counter(step,decimal-leading-zero);color:#fff;font-weight:700}.step h3{margin:0 0 6px;color:#fff}.step p{margin:0;color:var(--muted);font-size:14px}.faq-list{display:grid;gap:1px;background:var(--border);border:1px solid var(--border)}details{background:#080808;padding:0 20px}summary{cursor:pointer;list-style:none;color:#fff;font-weight:700;padding:18px 34px 18px 0;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:0;top:18px;color:var(--muted)}details[open] summary:after{content:"−"}details p{margin:0 0 20px;color:var(--muted);font-size:14px}.app-feature{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.app-media{min-height:360px;background:#0b0b0b;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;overflow:hidden}.app-media img{max-height:560px;width:100%;object-fit:contain}.legal-copy{max-width:900px}.legal-copy h2{margin-top:48px}.legal-copy h2:first-child{margin-top:0}.legal-copy p,.legal-copy li{color:var(--muted)}
.site-footer{background:#000;padding:58px 0 24px}.footer-top{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:34px}.footer-brand p{max-width:440px;color:var(--muted);font-size:13px}.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}.footer-logo img{max-width:160px;max-height:46px;object-fit:contain}.footer-logo strong{font-size:24px;color:#fff}.footer-logo span{font-size:10px;color:var(--muted);letter-spacing:.16em}.footer-group h2{font-size:13px;color:#fff;margin:0 0 14px}.footer-group a{display:block;color:var(--muted);font-size:13px;padding:4px 0}.footer-group a:hover{color:#fff}.footer-notice{border-top:1px solid var(--border);margin-top:38px;padding-top:20px;display:flex;justify-content:space-between;gap:30px;color:var(--quiet);font-size:12px}.footer-notice p{margin:0;max-width:840px}
.overlay{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.72);visibility:hidden;opacity:0;pointer-events:none}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.site-panel{position:fixed;z-index:90;left:0;top:0;bottom:0;width:min(520px,90vw);background:#050505;border-right:1px solid var(--border);transform:translateX(-100%);visibility:hidden;pointer-events:none;overflow-y:auto}.site-panel.is-open{transform:none;visibility:visible;pointer-events:auto}.panel-head{position:sticky;top:0;background:#050505;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--border)}.panel-brand{display:flex;align-items:center;gap:12px}.panel-brand img{max-width:96px;max-height:36px;object-fit:contain}.panel-brand span{display:grid}.panel-brand strong{color:#fff}.panel-brand small{color:var(--quiet);font-size:9px;letter-spacing:.16em}.panel-close{min-height:44px;padding:0 10px}.panel-groups{padding:10px 22px 34px}.panel-groups section{padding:18px 0;border-bottom:1px solid var(--border)}.panel-groups h2{font-size:12px;color:var(--quiet);letter-spacing:.12em}.panel-groups a{display:block;padding:12px 0}.panel-groups a strong{display:block;color:#fff;font-size:15px}.panel-groups a span{display:block;color:var(--muted);font-size:12px;line-height:1.6;margin-top:3px}.search-panel{position:fixed;z-index:95;inset:0;background:#000;visibility:hidden;opacity:0;pointer-events:none;overflow-y:auto}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-shell{width:min(calc(100% - 40px),980px);margin:0 auto;padding:44px 0 70px}.search-head{display:flex;justify-content:space-between;align-items:center;color:var(--muted);margin-bottom:52px}.search-head button{min-height:44px}.search-shell label{display:block;color:#fff;font-size:clamp(28px,4vw,48px);line-height:1.25;margin-bottom:16px}.site-search-input{width:100%;height:62px;background:#0b0b0b;border:1px solid var(--border-strong);color:#fff;padding:0 18px;border-radius:0}.search-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);margin-top:28px}.search-grid a{background:#080808;padding:18px}.search-grid a:hover{background:#121212}.search-grid strong{display:block;color:#fff}.search-grid span{color:var(--muted);font-size:12px}.search-note{color:var(--quiet);font-size:12px;margin-top:18px}.mobile-nav{display:none}
@media(max-width:1020px){.footer-top{grid-template-columns:1.4fr repeat(2,1fr)}.footer-brand{grid-row:span 2}.grid-4{grid-template-columns:repeat(2,1fr)}.hero-grid{grid-template-columns:1fr .8fr}.hero-media{min-height:430px}.channel-scroll a{padding-inline:10px}.desktop-only{display:none!important}.top-strip-inner{grid-template-columns:1fr auto}.top-links{display:none}.brand-bar-inner{grid-template-columns:1fr minmax(120px,220px) 1fr}}
@media(max-width:760px){:root{--header-h:113px}.shell{width:calc(100% - 28px)}.top-strip{height:30px}.top-brand{font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-actions{gap:10px}.brand-bar{height:58px}.brand-bar-inner{grid-template-columns:1fr minmax(110px,150px) 1fr;gap:8px}.brand-logo img{max-height:36px;max-width:120px}.brand-cn{font-size:20px}.brand-en{display:none}.brand-right .mini-solid{padding:0 12px;font-size:12px}.icon-text-button{min-width:44px}.channel-bar{height:40px}.channel-inner{width:100%;padding-left:14px;gap:4px}.channel-scroll{overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none}.channel-scroll::-webkit-scrollbar{display:none}.channel-scroll a{flex:0 0 auto}.more-wrap{flex:0 0 auto;padding-right:10px}.more-menu{right:8px}.hero{padding:34px 0 46px}.hero-grid{display:flex;flex-direction:column;gap:22px}.hero-copy{order:1}.hero-media{order:2;width:100%;min-height:260px;aspect-ratio:16/10}.hero-news{order:3;width:100%}.hero h1,.page-hero h1{font-size:clamp(36px,12vw,56px)}.section{padding:50px 0}.section-head{display:block}.section-head p{margin-top:14px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.card{padding:20px}.split,.page-hero-inner,.app-feature{grid-template-columns:1fr}.page-hero{padding:42px 0 38px}.page-hero-side{padding:16px 0 0;border-left:0;border-top:1px solid var(--border)}.content-list article{grid-template-columns:46px 1fr}.content-list .tag{grid-column:2}.meta-list div{grid-template-columns:92px 1fr}.footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1;grid-row:auto}.footer-notice{display:block}.footer-notice p+ p{margin-top:10px}.search-grid{grid-template-columns:1fr}.search-shell{width:calc(100% - 28px);padding-top:24px}.mobile-nav{position:fixed;display:grid;z-index:70;left:0;right:0;bottom:0;grid-template-columns:repeat(5,1fr);min-height:58px;padding-bottom:env(safe-area-inset-bottom);background:#050505;border-top:1px solid var(--border)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px;color:var(--muted);font-size:12px}.mobile-nav a.is-active{color:#fff;background:#0f0f0f}.site-footer{padding-bottom:90px}.panel-open .mobile-nav,.search-open .mobile-nav{display:none}.button-primary,.button-secondary{min-height:46px;padding-inline:16px}.hero-lead,.page-lead{font-size:15px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}