*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#080A0D;color:#C7CDD5;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}a:hover{color:#8ED8FF}button{font:inherit;cursor:pointer}img{max-width:100%}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:#F5F7FA;line-height:1.35}h1{font-size:34px}h2{font-size:26px}h3{font-size:20px}p{margin-bottom:16px}ul{padding-left:1.25em}.container{width:min(1200px,calc(100% - 48px));margin-inline:auto;min-width:0}.skip-link{position:absolute;top:-100px;left:10px;background:#6EA8FF;color:#080A0D;z-index:200;padding:8px}.skip-link:focus{top:10px}.site-header{height:74px;background:rgba(8,10,13,.96);border-bottom:1px solid rgba(255,255,255,.09);position:relative;z-index:30}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:relative}.brand-centered{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;max-width:36%}.brand-centered img{height:36px;width:auto;max-width:100%;object-fit:contain}.brand-fallback{color:#F5F7FA;font-size:21px;font-weight:800;white-space:nowrap}.icon-button{height:44px;width:44px;background:transparent;border:1px solid #303741;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;color:#fff}.icon-button span{display:block;width:18px;height:2px;background:currentColor}.entry-link{border:1px solid #5C7CFA;background:#283B75;color:#F5F7FA;min-height:42px;display:inline-flex;align-items:center;padding:0 20px;border-radius:999px;font-size:14px;font-weight:600;white-space:nowrap}.entry-link:hover{background:#3753A7;color:#fff}.channel-nav{height:48px;background:#0D1015;border-bottom:1px solid #242933}.channel-inner{width:min(1200px,100%);height:100%;margin:auto;display:flex;align-items:stretch;justify-content:space-around;overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;white-space:nowrap}.channel-inner a{display:flex;align-items:center;justify-content:center;padding:0 15px;color:#C7CDD5;border-bottom:2px solid transparent;font-size:14px;flex:0 0 auto}.channel-inner a.active{color:#6EA8FF;border-bottom-color:#6EA8FF}.drawer-overlay,.site-drawer{position:fixed;visibility:hidden;pointer-events:none;transition:transform .24s ease,opacity .24s ease,visibility .24s;z-index:60}.drawer-overlay{inset:0;background:rgba(0,0,0,.7);opacity:0}.site-drawer{inset:0 auto 0 0;width:420px;max-width:100%;background:#0D1015;transform:translateX(-105%);display:flex;flex-direction:column;border-right:1px solid #272F3B}.drawer-open{overflow:hidden}.drawer-open .drawer-overlay,.drawer-open .site-drawer{visibility:visible;pointer-events:auto}.drawer-open .drawer-overlay{opacity:1}.drawer-open .site-drawer{transform:translateX(0)}.drawer-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:25px 24px 15px;border-bottom:1px solid #272F3B}.drawer-brand{color:#fff;font-size:21px;font-weight:bold}.drawer-brand img{height:34px;width:auto;object-fit:contain}.drawer-heading p{font-size:13px;color:#9098A3;margin:4px 0}.close-button{width:40px;height:40px;background:#171C23;color:#fff;border:1px solid #333D49;border-radius:9px;font-size:25px;line-height:1}.drawer-scroll{overflow-y:auto;padding:13px 24px 32px}.drawer-group{margin:0 0 19px}.drawer-group h2{color:#9098A3;text-transform:uppercase;font-size:13px;font-weight:500;letter-spacing:.09em;margin-bottom:9px}.drawer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.drawer-links a{font-size:14px;padding:8px 10px;border-left:2px solid transparent;border-radius:3px}.drawer-links a.active{color:#6EA8FF;background:#171C23;border-left-color:#6EA8FF}.section{padding:52px 0;border-bottom:1px solid rgba(255,255,255,.07)}.section h2{margin-bottom:22px}.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#8ED8FF;font-weight:bold}.lead{font-size:17px;color:#C7CDD5;max-width:860px}.hero{padding-top:46px}.hero-grid,.split{display:grid;grid-template-columns:minmax(0,1.16fr) minmax(0,.84fr);gap:30px;align-items:center}.hero-grid{grid-template-columns:minmax(0,56fr) minmax(0,44fr)}.hero h1{font-size:40px;margin:14px 0 18px;max-width:690px}.hero-copy p{max-width:630px}.links-inline{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px}.links-inline a,.text-link{color:#8ED8FF;font-size:14px;border-bottom:1px solid rgba(142,216,255,.35)}.media{width:100%;max-width:100%;min-width:0;display:flex;justify-content:center;align-items:center;background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:14px;overflow:hidden;padding:9px;position:relative}.media img{width:100%;height:100%;max-height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{background:linear-gradient(135deg,#12161C,#0D1015 65%,#171C23)}.media-square{aspect-ratio:1/1}.media-wide{aspect-ratio:16/9}.media-banner{aspect-ratio:16/7}.media-device{aspect-ratio:9/16}.hero-media{height:300px;aspect-ratio:auto}.card-media{height:165px;aspect-ratio:auto}.gallery-media{height:185px;aspect-ratio:auto}.banner-media{height:250px;aspect-ratio:auto}.gif-media{height:150px;aspect-ratio:auto}.device-media{height:350px;aspect-ratio:auto}.feature-media{height:230px;aspect-ratio:auto}.two-col{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:26px}.three-col{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.four-col{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.six-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.panel,.content-card{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:22px;min-width:0}.panel h3,.content-card h3{font-size:18px;margin:0 0 9px}.panel p,.content-card p{font-size:15px;margin-bottom:12px}.number{font-size:13px;color:#6EA8FF;letter-spacing:.08em;font-weight:bold}.article-body{max-width:820px}.article-body h2{margin-top:35px}.article-body h3{margin-top:20px}.article-body p{line-height:1.95}.article-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(220px,1fr);gap:42px;align-items:start}.page-intro{padding:50px 0 20px}.page-intro h1{margin:7px 0 17px}.page-intro p{max-width:850px}.related{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:22px;position:sticky;top:18px}.related h2{font-size:20px}.related ul{padding:0;margin:0;list-style:none}.related li{display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.07);padding:12px 0;font-size:14px}.related li span{color:#6EA8FF}.reading-index{margin:0;padding:0;list-style:none}.reading-index li{padding:16px 0;display:grid;grid-template-columns:45px minmax(0,1fr);gap:12px;border-bottom:1px solid rgba(255,255,255,.09)}.reading-index strong{color:#6EA8FF}.reading-index a{color:#F5F7FA;font-weight:bold}.reading-index p{font-size:14px;color:#9098A3;margin:5px 0 0}.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.news-list article{padding:22px;border:1px solid rgba(255,255,255,.09);background:#12161C;border-radius:13px}.news-list h2{font-size:20px}.news-list p{font-size:15px}.faq-item{border-bottom:1px solid #29303A;padding:18px 0}.faq-item h2{font-size:19px;margin-bottom:10px}.faq-item p{margin-bottom:0}.site-footer{background:#050608;padding:44px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:32px}.footer-grid h2{font-size:16px}.footer-grid>div>a:not(.footer-brand){display:block;font-size:14px;margin:7px 0;color:#9098A3}.footer-grid>div>a:hover{color:#8ED8FF}.footer-intro p{font-size:14px;color:#9098A3}.footer-brand{font-size:21px;color:#F5F7FA;font-weight:bold}.footer-brand img{height:34px;max-width:100%;width:auto;object-fit:contain}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#9098A3}.back-top{position:fixed;bottom:22px;right:22px;width:44px;height:44px;border-radius:50%;border:1px solid #44536C;background:#171C23;color:white;z-index:20;opacity:0;visibility:hidden;pointer-events:none}.back-top.visible{opacity:1;visibility:visible;pointer-events:auto}.muted{color:#9098A3}.tag{display:inline-block;color:#8ED8FF;background:#171C23;padding:3px 10px;border-radius:99px;font-size:12px}.intro-links{display:flex;gap:15px;flex-wrap:wrap;margin-top:18px}.article-visual{margin:20px 0 26px}.banner-text{text-align:center;padding:20px 0 0}.plain-list{padding-left:20px}.plain-list li{margin-bottom:12px}.note{border-left:2px solid #6EA8FF;background:#12161C;padding:15px 20px;margin:22px 0;color:#C7CDD5}
@media(max-width:1100px){.footer-grid{gap:20px}.three-col,.six-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.four-col{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{gap:22px}}
@media(max-width:800px){.container{width:calc(100% - 40px)}.section{padding:36px 0}.hero-grid,.split,.two-col,.article-layout{grid-template-columns:minmax(0,1fr)}.hero-media{order:-1;height:240px}.related{position:static}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-intro{padding-top:36px}.hero h1{font-size:35px}.channel-inner{justify-content:flex-start}.banner-media{height:200px}}
@media(max-width:600px){body{font-size:15px}.container{width:calc(100% - 32px)}.site-header{height:62px}.header-inner{padding:0 12px}.icon-button{width:40px;height:40px}.brand-centered{max-width:34%}.brand-centered img{height:28px}.brand-fallback{font-size:17px}.entry-link{min-height:38px;font-size:12px;padding:0 11px}.channel-nav{height:44px}.channel-inner a{font-size:13px;padding:0 13px}.site-drawer{width:min(86vw,340px)}.drawer-heading{padding:18px 15px 13px}.drawer-scroll{padding:12px 15px 25px}.section{padding:32px 0}.hero{padding-top:25px}.hero-grid{gap:16px}.hero h1{font-size:29px}.page-intro h1{font-size:26px}h2{font-size:22px}h3{font-size:18px}.lead{font-size:15px}.hero-media{height:195px}.card-media{height:140px}.gallery-media{height:150px}.banner-media{height:140px}.feature-media{height:180px}.device-media{height:340px;max-width:270px;margin:auto}.gif-media{height:125px}.six-grid,.three-col,.four-col,.news-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.panel,.content-card{padding:15px}.panel h3,.content-card h3{font-size:16px}.panel p,.content-card p{font-size:14px}.footer-grid{gap:25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:8px 0}.reading-index li{grid-template-columns:36px minmax(0,1fr)}.article-body p{line-height:1.8}}
@media(max-width:360px){.brand-centered{max-width:30%}.brand-fallback{font-size:15px}.entry-link{padding:0 8px;font-size:11px}.six-grid{grid-template-columns:1fr}.three-col{grid-template-columns:1fr}.four-col,.news-list{grid-template-columns:repeat(2,minmax(0,1fr))}.card-media{height:125px}.gallery-media{height:125px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.drawer-overlay,.site-drawer{transition:none}}
