*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#080A0D;color:#C7CDD5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}a{color:#8ED8FF;text-decoration:none}a:hover{color:#fff}button{font:inherit;cursor:pointer}img{max-width:100%}.container{width:min(1200px,calc(100% - 48px));margin:0 auto}.site-header{background:rgba(8,10,13,.96);border-bottom:1px solid rgba(255,255,255,.09);position:relative;z-index:40}.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;position:relative}.menu-toggle{background:#171C23;border:1px solid rgba(255,255,255,.16);border-radius:12px;width:44px;height:44px;display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;color:#fff}.menu-toggle span{display:block;width:20px;height:2px;background:#F5F7FA;border-radius:2px}.site-logo{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);height:40px;display:flex;align-items:center;justify-content:center;white-space:nowrap}.site-logo img{height:36px;width:auto;max-width:min(170px,36vw);object-fit:contain}.site-logo b{font-size:23px;color:#F5F7FA;letter-spacing:1px}.enter-button{height:44px;padding:0 19px;border-radius:999px;background:#5C7CFA;color:#fff;font-size:14px;font-weight:bold;display:flex;align-items:center;justify-content:center;white-space:nowrap}.enter-button:hover{background:#7390FF}.channels{background:#0D1015;border-bottom:1px solid rgba(255,255,255,.09)}.channels-inner{height:46px;display:flex;align-items:stretch;gap:29px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#28384b transparent}.channels a{display:flex;align-items:center;flex:none;color:#C7CDD5;white-space:nowrap;font-size:14px;border-bottom:2px solid transparent}.channels a:hover,.channels a.selected{color:#6EA8FF;border-color:#6EA8FF}.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:50;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.drawer-overlay.open{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;inset:0 auto 0 0;background:#0D1015;width:420px;max-width:86vw;z-index:60;overflow-y:auto;transform:translateX(-105%);transition:transform .23s;visibility:hidden;pointer-events:none;box-shadow:10px 0 36px #0008}.site-drawer.open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-open{overflow:hidden}.drawer-heading{position:sticky;top:0;background:#12161C;border-bottom:1px solid #2a303a;display:flex;justify-content:space-between;align-items:center;padding:15px 22px;color:#fff;font-weight:bold}.drawer-close{background:transparent;border:0;color:#fff;font-size:30px;line-height:1}.drawer-group{padding:9px 22px 13px;border-bottom:1px solid rgba(255,255,255,.09)}.drawer-group h3{font-size:13px;color:#9098A3;letter-spacing:1px;margin:8px 0}.drawer-group a{padding:7px 10px;display:inline-block;width:49%;font-size:14px;color:#C7CDD5;border-left:2px solid transparent}.drawer-group a.active,.drawer-group a:hover{color:#6EA8FF;border-left-color:#6EA8FF}main{padding-top:35px;padding-bottom:64px}h1,h2,h3{color:#F5F7FA;line-height:1.38}h1{font-size:35px;margin:0 0 18px}h2{font-size:26px;margin:0 0 16px}h3{font-size:19px}p{margin:0 0 17px}.eyebrow{text-transform:uppercase;letter-spacing:2px;color:#8ED8FF;font-size:12px;font-weight:bold}.lead{font-size:17px;max-width:830px;color:#C7CDD5}.page-heading{padding:30px 0 22px;border-bottom:1px solid rgba(255,255,255,.09);margin-bottom:28px}.page-heading .lead{margin:0}.section-title{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:36px 0 18px}.section-title small{color:#9098A3}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center;background:#0D1015;border:1px solid rgba(255,255,255,.09);padding:24px;border-radius:14px}.hero p{max-width:630px}.hero .hero-media{order:2}.hero .hero-copy{order:1}.plain-link{margin-right:20px;font-size:14px}.link-row{display:flex;gap:12px 23px;flex-wrap:wrap;margin-top:18px}.lead-link{display:inline-flex;border:1px solid rgba(110,168,255,.35);padding:8px 17px;border-radius:9px}.grid{display:grid;gap:20px}.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{min-width:0;background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:20px}.card h3{margin:0 0 10px}.card p{font-size:15px}.card a{font-size:14px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#0D1015;border:1px solid rgba(255,255,255,.09)}.media img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;display:block}.media-placeholder{position:absolute;inset:0;background:linear-gradient(145deg,#101720,#1a2532 50%,#0D1015)}.media-wide{aspect-ratio:16/9}.media-square{aspect-ratio:1/1}.media-banner{aspect-ratio:16/7}.media-device{aspect-ratio:9/16;max-height:360px;max-width:260px;margin:auto}.media-hero{height:310px}.media-card{height:166px}.media-feature{height:230px}.media-strip{max-height:260px}.visual-item .media{margin-bottom:12px}.visual-item h3{font-size:18px;margin:5px 0 7px}.visual-item p{font-size:14px;margin-bottom:4px}.feature-split{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}.article,.text-panel{background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:25px}.article{max-width:850px}.article h2{margin-top:28px}.article h2:first-child{margin-top:0}.article p{line-height:1.85}.article-columns{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}.index-box{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:20px}.index-box h2{font-size:20px}.index-box a{display:block;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.09);font-size:14px}.index-box a:last-child{border:0}.number-list{counter-reset:item;display:grid;gap:0}.number-item{display:grid;grid-template-columns:50px 1fr;gap:8px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.09)}.number-item:before{counter-increment:item;content:counter(item,decimal-leading-zero);color:#6EA8FF;font-size:21px}.number-item h3{margin:0 0 5px}.number-item p{margin:0}.notice{padding:18px 22px;border-left:3px solid #5C7CFA;background:#12161C;border-radius:4px 12px 12px 4px;margin:28px 0}.mobile-section{display:grid;grid-template-columns:1fr 280px;align-items:center;gap:28px}.banner-section{margin:38px 0}.banner-section .media{max-height:260px}.tag{font-size:12px;color:#8ED8FF;letter-spacing:1px}.qa{padding:20px 0;border-bottom:1px solid rgba(255,255,255,.09)}.qa h2{font-size:19px;margin:0 0 8px}.qa p{margin:0}.site-footer{background:#050608;border-top:1px solid rgba(255,255,255,.09);padding:42px 0 22px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:35px}.footer-grid h2{font-size:16px;margin-bottom:14px}.footer-grid a:not(.footer-brand){display:block;font-size:14px;padding:3px 0;color:#C7CDD5}.footer-grid p{font-size:14px;color:#9098A3}.footer-brand img{height:36px;width:auto;object-fit:contain}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:28px;padding-top:18px;font-size:12px;color:#9098A3;display:flex;gap:20px;justify-content:space-between}.back-to-top{position:fixed;bottom:25px;right:25px;border:1px solid #526fbb;background:#171C23;color:#fff;border-radius:50%;width:42px;height:42px;z-index:30;opacity:0;pointer-events:none;transition:opacity .2s}.back-to-top.visible{opacity:1;pointer-events:auto}@media(max-width:980px){.container{width:calc(100% - 40px)}.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-columns{grid-template-columns:minmax(0,1fr) 240px}}@media(max-width:700px){body{font-size:15px}.container{width:calc(100% - 32px)}.topbar{height:64px}.menu-toggle{width:40px;height:40px}.site-logo img{height:28px;max-width:120px}.site-logo b{font-size:19px}.enter-button{height:40px;padding:0 12px;font-size:12px}.channels-inner{height:44px;gap:22px}.channels a{font-size:13px}h1{font-size:27px}h2{font-size:21px}h3{font-size:18px}main{padding-top:20px;padding-bottom:35px}.hero{grid-template-columns:1fr;padding:17px;gap:12px}.hero .hero-media{order:1}.hero .hero-copy{order:2}.media-hero{height:200px}.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-split,.article-columns,.mobile-section{grid-template-columns:1fr}.article,.text-panel{padding:18px}.media-card{height:145px}.media-feature{height:180px}.mobile-section .media-device{max-height:330px}.footer-grid{gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:7px}}@media(max-width:360px){.site-logo img{max-width:100px}.site-logo b{font-size:17px}.enter-button{padding:0 9px;font-size:11px}.cols-3{grid-template-columns:1fr}.card{padding:16px}.media-card{height:135px}.channels-inner{gap:16px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}