*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width: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%}.container{max-width:1180px;margin-inline:auto;padding-inline:24px}main{min-height:55vh;padding-top:24px;padding-bottom:54px}h1,h2,h3{color:#F5F7FA;line-height:1.4;margin:0 0 16px}h1{font-size:36px}h2{font-size:25px}h3{font-size:19px}p{margin:0 0 16px}.eyebrow{color:#8ED8FF;font-size:13px;font-weight:700;letter-spacing:.1em}.muted,.kicker{color:#9098A3}.lead{font-size:17px;color:#D9E1EC}.site-header{position:sticky;top:0;z-index:100;background:#0D1015;border-bottom:1px solid rgba(255,255,255,.09)}.header-inner{max-width:1180px;height:70px;padding:0 24px;margin:auto;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;flex:none;color:#F5F7FA;font-size:23px;font-weight:800}.brand span{color:#6EA8FF}.logo-media{display:flex;align-items:center;max-width:165px;height:38px}.logo-media img{width:auto;height:auto;max-height:38px;max-width:165px;object-fit:contain}.primary-nav{display:flex;align-items:center;justify-content:center;gap:30px;flex:1;min-width:0}.primary-nav a{white-space:nowrap;font-size:15px;font-weight:600;display:flex;align-items:center;height:70px;position:relative}.primary-nav a.active{color:#6EA8FF}.primary-nav a.active:after{content:"";height:2px;background:#6EA8FF;width:23px;position:absolute;bottom:13px;left:0}.entry-btn,.solid-btn{display:inline-flex;align-items:center;justify-content:center;background:#5C7CFA;color:#fff;border-radius:999px;white-space:nowrap;padding:7px 22px;font-size:14px;font-weight:700;min-height:42px}.entry-btn:hover,.solid-btn:hover{background:#7390FF;color:#fff}.subnav-wrap{background:#12161C;border-bottom:1px solid rgba(255,255,255,.09)}.subnav{height:44px;display:flex;gap:29px;align-items:center;overflow-x:auto;white-space:nowrap;scrollbar-width:thin}.subnav a{font-size:13px;color:#9098A3}.subnav a.selected,.subnav a:hover{color:#8ED8FF}.menu-toggle{display:none}.mobile-drawer,.drawer-mask{display:none}.bottom-nav{display:none}.section{margin:42px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:18px}.section-head p{font-size:14px;color:#9098A3}.section-head a{color:#8ED8FF;font-size:14px;white-space:nowrap}.hero{display:grid;grid-template-columns:56fr 44fr;gap:32px;align-items:center;background:linear-gradient(120deg,#171C23,#101723);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:30px;margin-bottom:38px}.hero p{max-width:670px}.hero .media{max-height:300px}.hero .media img{max-height:300px}.hero-actions{display:flex;gap:14px;align-items:center;margin-top:20px;flex-wrap:wrap}.outline-btn{border:1px solid rgba(255,255,255,.16);border-radius:99px;padding:7px 19px}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card,.article-panel,.feature-panel,.simple-list{background:#171C23;border:1px solid rgba(255,255,255,.09);border-radius:13px;min-width:0}.card{padding:20px}.card h3{margin-bottom:8px}.card p{font-size:14px;color:#AEB9C5}.card a.more,.more{color:#8ED8FF;font-size:14px}.article-panel{padding:26px}.feature-panel{padding:26px}.feature-layout{display:grid;grid-template-columns:1.4fr 1fr;gap:18px}.simple-list{padding:22px}.simple-list a{display:block;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.09)}.simple-list a:last-child{border:0}.media{position:relative;width:100%;max-width:100%;min-width:0;overflow:hidden;border-radius:12px;background:#0D1015}.media img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.media-natural img{width:100%;height:auto;max-height:300px;object-fit:contain;margin:0 auto}.media-square{aspect-ratio:1}.media-landscape{aspect-ratio:16/9}.media-topic{aspect-ratio:4/3}.media-banner{aspect-ratio:16/7}.media-device{aspect-ratio:9/16}.media-placeholder{width:100%;height:100%;min-height:115px;background:linear-gradient(135deg,#1B2129,#10141B);border:1px solid rgba(255,255,255,.07);border-radius:12px}.media-natural .media-placeholder{height:200px}.media-banner .media-placeholder{min-height:130px}.visual-card{overflow:hidden;padding:12px}.visual-card .media{margin-bottom:13px}.visual-card h3{font-size:17px;margin:4px 0}.visual-card p{font-size:13px}.split{display:grid;grid-template-columns:44fr 56fr;align-items:center;gap:30px}.split.reverse{grid-template-columns:58fr 42fr}.split .media{max-height:300px}.split .media img{max-height:300px}.narrow-device{width:min(100%,240px);margin:auto}.narrow-device img{max-height:345px;max-width:100%}.text-columns{display:grid;grid-template-columns:1fr 1fr;gap:18px}.notice{border-left:3px solid #6EA8FF;background:#12161C;padding:20px 24px;border-radius:0 10px 10px 0}.index-news{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.index-news a{padding:18px;background:#171C23;border:1px solid rgba(255,255,255,.09);border-radius:12px}.index-news strong{display:block;color:#F5F7FA}.index-news small{color:#9098A3}.page-intro{padding:34px 0 12px;max-width:830px}.page-intro h1{font-size:33px}.page-intro p{font-size:17px}.article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(220px,1fr);gap:28px;align-items:start}.article-copy{max-width:800px}.article-copy section{margin-bottom:32px;padding:0 0 17px;border-bottom:1px solid rgba(255,255,255,.09)}.article-copy h2{font-size:24px}.article-copy p{line-height:1.85}.sidebar{position:sticky;top:137px}.sidebar h3{font-size:16px}.sidebar a{display:block;margin:9px 0;font-size:14px;color:#AABBCB}.sidebar a:hover{color:#8ED8FF}.related-block{margin:42px 0}.related-links{display:flex;gap:12px;flex-wrap:wrap}.related-links a{border:1px solid rgba(255,255,255,.16);background:#171C23;border-radius:10px;padding:10px 16px}.faq-list details{border:1px solid rgba(255,255,255,.09);border-radius:12px;padding:16px 20px;background:#171C23;margin:12px 0}.faq-list summary{cursor:pointer;color:#F5F7FA;font-weight:700}.faq-list p{margin:13px 0 0}.site-footer{background:#050608;border-top:1px solid rgba(255,255,255,.09);padding:48px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}.footer-brand p{font-size:14px;margin-top:15px}.footer-links h2{font-size:16px;margin-bottom:12px}.footer-links a{display:block;font-size:14px;margin:7px 0;color:#A6B3C0}.footer-extra{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;margin-top:28px}.copyright{margin-top:20px;border-top:1px solid rgba(255,255,255,.09);padding-top:18px;font-size:12px;color:#9098A3}.copyright p{margin-top:5px}.to-top{position:fixed;bottom:22px;right:22px;background:#222F49;color:#fff;border:1px solid #5C7CFA;border-radius:50%;width:40px;height:40px;z-index:70}.muted-tag{font-size:12px;color:#8ED8FF;display:inline-block;margin:0 0 8px}.banner-area{max-width:1080px;margin-inline:auto}.banner-area .media img{max-height:230px}@media(max-width:980px){.primary-nav{display:none}.header-inner{height:58px;padding:0 20px;justify-content:space-between;gap:12px}.brand{margin:auto}.logo-media{height:30px}.logo-media img{max-height:30px;max-width:136px}.entry-btn{min-height:36px;min-width:76px;padding:5px 12px}.menu-toggle{display:flex;flex-direction:column;gap:5px;justify-content:center;width:36px;height:36px;border:0;background:transparent;flex:none}.menu-toggle span{display:block;height:2px;width:23px;background:#DDE8F8}.mobile-drawer,.drawer-mask{display:none}@media(max-width:980px){.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);height:100dvh;background:#0D1015;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;overflow-y:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:11000;opacity:0;pointer-events:none}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}body.drawer-open{overflow:hidden}}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;border-bottom:1px solid rgba(255,255,255,.09)}.drawer-head button{background:transparent;border:0;color:#F5F7FA;font-size:32px}.drawer-group{padding:12px 20px;border-bottom:1px solid rgba(255,255,255,.09)}.drawer-group h2{font-size:14px;color:#8ED8FF;margin-bottom:8px}.drawer-group a{display:block;padding:7px 0;font-size:14px}.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:60px;background:#0D1015;z-index:90;border-top:1px solid rgba(255,255,255,.16);align-items:center;justify-content:space-around}.bottom-nav a{font-size:13px}.bottom-nav a.active{color:#6EA8FF}body{padding-bottom:60px}.to-top{bottom:76px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.container{padding-inline:20px}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){body{font-size:15px}.container{padding-inline:16px}main{padding-top:14px}.hero{display:flex;flex-direction:column-reverse;padding:19px;gap:18px}.hero h1{font-size:28px}.hero .media{width:100%;max-height:210px}.hero .media img{max-height:210px}.section{margin:30px 0}h2{font-size:21px}.page-intro h1{font-size:27px}.section-head{align-items:start}.section-head p{display:none}.grid-3,.grid-4,.grid-2,.index-news,.feature-layout,.text-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-layout,.text-columns{grid-template-columns:1fr}.card{padding:14px}.card h3{font-size:17px}.card p{font-size:13px}.visual-card{padding:8px}.visual-card h3{font-size:16px}.split,.split.reverse{grid-template-columns:1fr;gap:17px}.split .media{max-height:210px}.split .media img{max-height:210px}.split.reverse .media{order:-1}.article-layout{display:block}.sidebar{position:static;margin-top:20px}.article-panel,.feature-panel{padding:18px}.banner-area .media img{max-height:145px}.footer-grid{gap:23px}.footer-brand{grid-column:span 2}.header-inner{padding-inline:12px}.brand{font-size:19px}.subnav{gap:21px}.narrow-device img{max-height:275px}}@media(max-width:340px){.grid-3,.grid-2{grid-template-columns:1fr}.brand{font-size:17px}.header-inner{gap:4px}.entry-btn{padding:5px 10px}.grid-4{gap:9px}.visual-card h3{font-size:14px}}