*{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:#8ED8FF;text-decoration:none}a:hover{text-decoration:underline;color:#fff}button{font:inherit;cursor:pointer}img{max-width:100%;height:auto}h1,h2,h3{color:#F5F7FA;line-height:1.35;margin:0 0 16px}h1{font-size:34px}h2{font-size:26px}h3{font-size:20px}p{margin:0 0 16px}ul,ol{padding-left:22px}li{margin:8px 0}section{min-width:0}.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;z-index:200;left:15px;top:-70px;background:white;color:black;padding:8px}.skip-link:focus{top:5px}.site-header{height:74px;background:rgba(8,10,13,.96);border-bottom:1px solid rgba(255,255,255,.09);position:relative;z-index:20}.header-inner{height:100%;width:min(1200px,calc(100% - 48px));margin:auto;display:flex;align-items:center;justify-content:space-between;position:relative}.brand{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);height:36px;max-width:32%;display:flex;align-items:center;justify-content:center;color:#F5F7FA;font-size:18px;white-space:nowrap}.brand img{width:auto;height:auto;max-height:36px;max-width:100%;object-fit:contain}.menu-button{height:44px;width:44px;display:flex;flex-direction:column;gap:5px;justify-content:center;align-items:center;background:transparent;color:white;border:1px solid rgba(255,255,255,.16);border-radius:9px;flex-shrink:0}.menu-button span{width:19px;height:2px;background:#C7CDD5}.entry{height:42px;padding:0 18px;background:#5C7CFA;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-weight:bold;font-size:14px;color:#fff;flex-shrink:0}.entry:hover{background:#6EA8FF;text-decoration:none}.channel-nav{height:48px;background:#0D1015;border-bottom:1px solid rgba(255,255,255,.09)}.channel-inner{width:min(1200px,100%);height:100%;margin:auto;display:flex;align-items:stretch;justify-content:space-around;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}.channel-inner a{position:relative;display:flex;white-space:nowrap;align-items:center;justify-content:center;color:#C7CDD5;padding:0 17px;font-size:14px;flex:0 0 auto}.channel-inner a.active,.channel-inner a:hover{color:#6EA8FF;text-decoration:none}.channel-inner a.active:after{content:"";height:2px;background:#6EA8FF;position:absolute;bottom:0;left:13px;right:13px}.drawer-overlay{position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.75);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.site-drawer{width:min(420px,86vw);height:100dvh;position:fixed;top:0;left:0;background:#0D1015;z-index:41;display:flex;flex-direction:column;transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .22s,visibility .22s;box-shadow:8px 0 35px rgba(0,0,0,.3)}.drawer-open .drawer-overlay{opacity:1;visibility:visible;pointer-events:auto}.drawer-open .site-drawer{transform:none;visibility:visible;pointer-events:auto}.drawer-top{display:flex;justify-content:space-between;align-items:flex-start;padding:23px;border-bottom:1px solid rgba(255,255,255,.09)}.drawer-brand img{max-width:170px;max-height:36px;object-fit:contain}.drawer-brand p{margin:5px 0 0;color:#9098A3;font-size:13px}.close-button{border:1px solid rgba(255,255,255,.16);background:#171C23;border-radius:8px;color:#fff;font-size:25px;line-height:1;width:38px;height:38px}.drawer-content{overflow-y:auto;padding:12px 23px 30px;min-height:0}.drawer-group{border-bottom:1px solid rgba(255,255,255,.09);padding:12px 0}.drawer-group h2{font-size:13px;color:#9098A3;letter-spacing:1px;margin-bottom:8px}.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.drawer-grid a{padding:7px 10px;font-size:14px;border-left:2px solid transparent;color:#C7CDD5}.drawer-grid a:hover,.drawer-grid a.active{color:#6EA8FF;background:#171C23;border-left-color:#6EA8FF;text-decoration:none}.site-footer{background:#050608;margin-top:62px;border-top:1px solid rgba(255,255,255,.09)}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:32px;padding-block:43px}.footer-grid>div{display:flex;flex-direction:column;align-items:flex-start;min-width:0}.footer-grid img{max-height:36px;object-fit:contain}.footer-grid h2{font-size:16px;margin-bottom:12px}.footer-grid a{font-size:14px;color:#C7CDD5;margin-bottom:8px}.footer-about p{font-size:14px;color:#9098A3;margin-top:10px}.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:18px 0 24px;font-size:13px;color:#9098A3}.footer-bottom p{margin:0 0 5px}#back-to-top{position:fixed;right:20px;bottom:20px;width:42px;height:42px;border:1px solid rgba(255,255,255,.16);border-radius:50%;background:#171C23;color:#fff;opacity:0;pointer-events:none;z-index:10;transition:opacity .2s}#back-to-top.visible{opacity:1;pointer-events:auto}.hero{padding:48px 0 35px;background:radial-gradient(ellipse at 80% 20%,rgba(92,124,250,.13),transparent 48%)}.hero-grid{display:grid;grid-template-columns:minmax(0,56fr) minmax(0,44fr);gap:35px;align-items:center}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:#8ED8FF;margin-bottom:10px}.hero h1{font-size:40px}.hero .intro{font-size:17px;color:#C7CDD5}.text-actions{display:flex;gap:20px;flex-wrap:wrap;margin-top:23px}.text-actions a{border-bottom:1px solid #5C7CFA;padding-bottom:3px}.media{width:100%;min-width:0;max-width:100%;border-radius:14px;background:#0D1015;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.09)}.media img{width:100%;height:100%;max-width:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{background:linear-gradient(130deg,#0D1015,#171C23)}.media-wide{height:175px}.hero .media-wide{height:300px}.media-banner{max-height:250px;height:220px}.media-device{max-height:350px;height:350px}.media-square{height:175px}.media-gif{height:150px}.section{margin-block:52px}.section-heading{display:flex;align-items:baseline;gap:15px;justify-content:space-between;margin-bottom:18px}.section-heading p{font-size:14px;color:#9098A3;margin:0}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.panel{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:21px;min-width:0}.panel h3{font-size:18px}.panel p:last-child{margin-bottom:0}.panel:hover{border-color:rgba(255,255,255,.16)}.number{color:#6EA8FF;font-size:13px;letter-spacing:2px}.split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:24px;align-items:start}.split.equal{grid-template-columns:repeat(2,minmax(0,1fr))}.split.media-text{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:center}.split.mobile-section{grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);align-items:center}.split > *{min-width:0}.index-list{list-style:none;padding:0;margin:0;counter-reset:idx}.index-list li{counter-increment:idx;display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;border-top:1px solid rgba(255,255,255,.09);padding:14px 0;margin:0}.index-list li:before{content:counter(idx,decimal-leading-zero);font-size:14px;color:#6EA8FF}.index-list h3{margin:0 0 6px;font-size:18px}.index-list p{margin:0 0 5px}.figure-card{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:13px;overflow:hidden;min-width:0}.figure-card .media{border:0;border-radius:0}.figure-card .copy{padding:15px}.figure-card h3{font-size:17px;margin-bottom:8px}.figure-card p{font-size:14px;margin:0;color:#C7CDD5}.article-header{padding:46px 0 25px;background:radial-gradient(ellipse at 90% 0%,rgba(92,124,250,.11),transparent 48%);border-bottom:1px solid rgba(255,255,255,.09)}.article-header .lead{max-width:820px;color:#C7CDD5;font-size:17px}.breadcrumbs{color:#9098A3;font-size:13px;margin-bottom:14px}.article-layout{display:grid;grid-template-columns:minmax(0,820px) minmax(0,1fr);gap:30px;align-items:start;padding-top:36px}.article-body{min-width:0}.article-body section{margin-bottom:34px}.article-body h2{border-left:3px solid #5C7CFA;padding-left:13px;margin-bottom:14px}.article-body p{line-height:1.9}.article-body .media{margin:18px 0}.article-side{position:sticky;top:24px;min-width:0}.related{background:#12161C;border:1px solid rgba(255,255,255,.09);padding:20px;border-radius:12px}.related h2{font-size:18px}.related-links{display:flex;flex-direction:column}.related-link{padding:9px 0;border-bottom:1px solid rgba(255,255,255,.09);font-size:14px}.related-link:last-child{border-bottom:0}.topic-note{border-left:2px solid #6EA8FF;padding:14px 18px;background:#12161C;margin:20px 0;color:#C7CDD5}.faq-item{background:#12161C;border:1px solid rgba(255,255,255,.09);border-radius:12px;margin:12px 0;padding:15px 20px}.faq-item summary{cursor:pointer;color:#F5F7FA;font-weight:700}.faq-item p{margin:12px 0 0}.tag{display:inline-block;font-size:12px;color:#8ED8FF;border:1px solid rgba(142,216,255,.25);padding:1px 9px;border-radius:30px}.banner-section .media{width:100%}.category-text{max-width:820px}.notice{font-size:14px;color:#9098A3}.article-body .panel{margin:16px 0}@media(max-width:980px){.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) 235px;gap:20px}.footer-grid{gap:18px}}@media(max-width:768px){body{font-size:15px}.container,.header-inner{width:calc(100% - 32px)}.site-header{height:62px}.brand{height:28px;max-width:34%}.brand img{max-height:28px}.menu-button{height:40px;width:40px}.entry{height:38px;padding:0 13px;font-size:12px}.channel-nav{height:44px}.channel-inner{justify-content:flex-start}.channel-inner a{padding:0 15px}.hero{padding-top:26px}.hero-grid{display:flex;flex-direction:column-reverse;align-items:stretch;gap:22px}.hero .media-wide{height:195px}.hero h1{font-size:29px}.article-header h1{font-size:26px}.article-header{padding:28px 0 20px}.article-header .lead,.hero .intro{font-size:15px}h2{font-size:22px}h3{font-size:18px}.split,.split.equal,.split.media-text,.split.mobile-section{grid-template-columns:minmax(0,1fr)}.split.media-text .media,.split.mobile-section .media{order:-1}.article-layout{grid-template-columns:minmax(0,1fr)}.article-side{position:static}.section{margin-block:34px}.grid{gap:14px}.panel{padding:16px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:22px}.media-wide,.media-square{height:150px}.media-banner{height:140px}.media-gif{height:120px}}@media(max-width:375px){.brand{max-width:30%;font-size:15px}.entry{padding:0 10px;font-size:11px}.hero .media-wide{height:175px}.panel{padding:13px}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:335px){.brand{max-width:27%}.brand strong{font-size:13px}.grid-3,.quick-grid{grid-template-columns:minmax(0,1fr)!important}.entry{padding:0 8px}.header-inner{width:calc(100% - 24px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
