*{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}img{max-width:100%}.wrap{max-width:1200px;margin:auto;padding-left:24px;padding-right:24px}.site-header{position:relative;z-index:20;background:rgba(8,10,13,.96);border-bottom:1px solid rgba(255,255,255,.09)}.topbar{height:74px}.topbar-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.menu-toggle{justify-self:start;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:44px;height:44px;background:#12161C;border:1px solid rgba(255,255,255,.16);border-radius:11px;color:#fff;cursor:pointer}.menu-toggle span{display:block;width:19px;height:2px;background:#F5F7FA;border-radius:2px}.brand{display:flex;align-items:center;justify-content:center;min-width:0}.brand img{height:36px;width:auto;max-width:180px;object-fit:contain}.brand-fallback,.footer-brand{font-size:24px;line-height:1.1;font-weight:800;letter-spacing:.02em;color:#F5F7FA}.brand-fallback span{color:#6EA8FF}.enter-btn{justify-self:end;white-space:nowrap;display:inline-flex;height:44px;align-items:center;justify-content:center;padding:0 20px;border-radius:999px;background:#5C7CFA;color:#fff;font-size:14px;font-weight:700}.enter-btn:hover{background:#7390FF;color:#fff}.channel-bar{height:46px;background:#0D1015}.channel-inner{height:100%;display:flex;gap:30px;align-items:stretch;overflow-x:auto;overflow-y:hidden;scrollbar-width:thin}.channel-inner a{display:flex;align-items:center;position:relative;white-space:nowrap;font-size:14px;color:#C7CDD5}.channel-inner a.active,.channel-inner a:hover{color:#6EA8FF}.channel-inner a.active:after{position:absolute;content:"";height:2px;background:#6EA8FF;bottom:0;left:0;right:0}.drawer-shade{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:30;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s,visibility .2s}.menu-drawer{position:fixed;z-index:31;left:0;top:0;bottom:0;width:420px;max-width:86vw;overflow-y:auto;background:#0D1015;border-right:1px solid rgba(255,255,255,.16);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .25s,visibility .25s;padding:20px 24px 32px}.menu-open .drawer-shade{visibility:visible;opacity:1;pointer-events:auto}.menu-open .menu-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.menu-open{overflow:hidden}.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;gap:10px}.drawer-head img{height:34px;width:auto;object-fit:contain}.menu-close{background:#171C23;color:#F5F7FA;border:1px solid rgba(255,255,255,.16);border-radius:9px;min-width:42px;height:42px;cursor:pointer;font-size:27px;line-height:1}.drawer-group{margin:18px 0}.drawer-group h2{margin:0 0 10px;font-size:13px;color:#9098A3;letter-spacing:.08em}.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px}.drawer-links a{border-left:2px solid transparent;padding:6px 9px;font-size:14px}.drawer-links a.active{border-color:#6EA8FF;color:#6EA8FF}.main-content{padding-top:30px;padding-bottom:55px;min-height:60vh}h1,h2,h3{color:#F5F7FA;line-height:1.38;margin-top:0}h1{font-size:36px;letter-spacing:-.035em}h2{font-size:26px}h3{font-size:19px}p{margin:0 0 17px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;color:#8ED8FF;margin-bottom:12px}.muted{color:#9098A3}.lead{font-size:17px;line-height:1.85}.panel{background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:25px}.panel-alt{background:#12161C}.section{margin-top:52px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:20px}.section-head h2{margin-bottom:0}.section-head a,.text-link{color:#8ED8FF;font-size:14px}.hero{display:grid;grid-template-columns:54fr 46fr;gap:32px;align-items:center}.hero-copy h1{font-size:42px;margin-bottom:16px}.hero-copy p{max-width:640px}.link-pair{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:22px}.link-pair a{color:#8ED8FF;font-weight:700}.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(135deg,#12161C,#171C23 52%,#0D1015)}.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:310px;aspect-ratio:auto}.banner-media{height:260px;aspect-ratio:auto}.card-media{height:165px;aspect-ratio:auto}.feature-media{height:220px;aspect-ratio:auto}.mobile-media{max-width:280px;max-height:360px;margin-inline:auto}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.card{min-width:0;background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:20px}.card h3{margin:0 0 8px;font-size:18px}.card p{font-size:14px;margin-bottom:10px}.card .media{margin-bottom:15px}.split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,1fr);gap:22px}.editorial{padding:28px;background:#0D1015;border-top:2px solid #5C7CFA;border-radius:0 0 14px 14px}.small-list{list-style:none;margin:0;padding:0}.small-list li{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.09)}.small-list li:last-child{border-bottom:0}.small-list a{color:#F5F7FA;font-weight:600}.small-list p{font-size:14px;color:#9098A3;margin:6px 0 0}.numbered{counter-reset:article;list-style:none;padding:0;margin:0}.numbered li{counter-increment:article;border-bottom:1px solid rgba(255,255,255,.09);display:grid;grid-template-columns:45px 1fr;gap:16px;padding:15px 0}.numbered li:before{content:counter(article,decimal-leading-zero);font-weight:700;color:#6EA8FF}.numbered a{color:#F5F7FA;font-weight:700}.numbered p{font-size:14px;margin:4px 0;color:#9098A3}.inner-hero{border-bottom:1px solid rgba(255,255,255,.09);padding-bottom:27px;margin-bottom:32px}.inner-hero h1{margin-bottom:12px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:32px;align-items:start}.article-copy{max-width:820px;min-width:0}.article-copy section{margin-bottom:33px}.article-copy h2{font-size:24px;margin:0 0 15px}.article-copy p{line-height:1.85}.side-index{position:sticky;top:18px;background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:20px}.side-index h2{font-size:17px}.side-index a{display:block;border-top:1px solid rgba(255,255,255,.09);padding:10px 0;font-size:14px}.article-wide{max-width:850px;margin-inline:auto}.related{margin-top:40px;border-top:1px solid rgba(255,255,255,.16);padding-top:24px}.related h2{font-size:21px}.related-links{display:flex;flex-wrap:wrap;gap:12px}.related-links a{display:inline-flex;align-items:center;padding:10px 16px;border:1px solid rgba(255,255,255,.16);border-radius:9px;background:#12161C;font-size:14px}.note{padding:18px 20px;border-left:3px solid #6EA8FF;background:#12161C;color:#C7CDD5}.image-caption{font-size:14px;color:#9098A3;margin:9px 0 0}.faq-item{border-bottom:1px solid rgba(255,255,255,.09);padding:17px 0}.faq-item h2{font-size:18px;margin:0 0 9px}.category-block{min-width:0;padding:22px;border:1px solid rgba(255,255,255,.09);border-radius:12px;background:#12161C}.category-block h2{font-size:21px}.category-block p{font-size:15px}.site-footer{background:#050608;border-top:1px solid rgba(255,255,255,.09);padding:44px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px}.footer-grid h2{font-size:16px;margin:0 0 13px}.footer-grid a{display:block;font-size:14px;margin-bottom:7px}.footer-about p{font-size:14px;line-height:1.8;max-width:300px}.footer-logo{height:38px;width:auto;object-fit:contain}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);margin-top:28px;padding-top:18px;display:flex;gap:14px;justify-content:space-between;color:#9098A3;font-size:12px}.back-top{position:fixed;bottom:22px;right:22px;z-index:10;width:42px;height:42px;border:1px solid rgba(255,255,255,.16);border-radius:50%;background:#171C23;color:#F5F7FA;cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s}.back-top.visible{opacity:1;pointer-events:auto}:focus-visible{outline:2px solid #8ED8FF;outline-offset:3px}
@media(max-width:980px){.wrap{padding-left:20px;padding-right:20px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:20px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{gap:20px}.hero-copy h1{font-size:36px}}
@media(max-width:680px){.wrap{padding-left:16px;padding-right:16px}.topbar{height:64px}.menu-toggle{height:40px;width:40px}.brand img{height:28px;max-width:120px}.brand-fallback{font-size:18px}.enter-btn{height:40px;padding:0 12px;font-size:12px}.channel-bar{height:46px}.channel-inner{gap:23px}.main-content{padding-top:24px;padding-bottom:36px}h1{font-size:27px}h2{font-size:21px}h3{font-size:18px}.hero{display:flex;flex-direction:column-reverse;align-items:stretch;gap:20px}.hero-copy h1{font-size:30px}.hero-media{height:205px}.lead{font-size:16px}.section{margin-top:34px}.section-head{align-items:start}.panel,.card,.editorial{padding:18px}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.grid-4{gap:13px}.grid-2,.split{grid-template-columns:1fr;gap:14px}.card h3{font-size:16px}.card p{font-size:13px}.card-media{height:145px}.feature-media{height:165px}.banner-media{height:145px}.article-layout{grid-template-columns:1fr}.side-index{position:static}.article-copy h2{font-size:21px}.footer-grid{gap:20px}.footer-bottom{flex-direction:column}.inner-hero{padding-bottom:20px}.drawer-links{gap:4px}}
@media(max-width:360px){.topbar-inner{gap:5px}.enter-btn{padding:0 10px}.brand img{max-width:108px}.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.card{padding:12px}.card-media{height:125px}.hero-copy h1{font-size:28px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
