*{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}body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:#8ED8FF}a:focus-visible,button:focus-visible{outline:2px solid #8ED8FF;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{color:#F5F7FA;line-height:1.38}h1{font-size:34px;letter-spacing:-.03em}h2{font-size:25px}h3{font-size:19px}p{margin-bottom:16px}button{font:inherit;cursor:pointer}.container{width:min(100% - 48px,1200px);margin-inline:auto}.skip-link{position:absolute;z-index:60;top:-100px;left:16px;padding:8px;background:#fff;color:#080A0D}.skip-link:focus{top:8px}.site-header{position:relative;z-index:30;background:rgba(8,10,13,.96);border-bottom:1px solid rgba(255,255,255,.09)}.topbar{height:74px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px}.menu-toggle{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:#12161C;border:1px solid rgba(255,255,255,.16);border-radius:10px;color:#fff}.menu-toggle span{width:18px;height:2px;background:#F5F7FA;border-radius:2px}.brand{justify-self:center;display:flex;align-items:center;justify-content:center;max-width:180px}.brand img{max-width:100%;height:36px;width:auto;object-fit:contain}.brand strong{font-size:25px;letter-spacing:.03em;color:#F5F7FA}.brand strong span{color:#6EA8FF}.enter-button{justify-self:end;display:inline-flex;align-items:center;justify-content:center;height:44px;min-width:112px;padding:0 20px;color:#fff;background:#5C7CFA;border-radius:999px;font-weight:700;font-size:14px;white-space:nowrap}.enter-button:hover{background:#7390FF;color:#fff}.channel-nav{background:#0D1015;border-top:1px solid rgba(255,255,255,.06)}.channel-inner{display:flex;gap:32px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:thin}.channel-inner a{height:46px;display:flex;align-items:center;flex:0 0 auto;font-size:14px;border-bottom:2px solid transparent;white-space:nowrap}.channel-inner a.is-current{color:#6EA8FF;border-bottom-color:#6EA8FF}.drawer-overlay{position:fixed;inset:0;background:rgba(0,0,0,.66);z-index:35;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s,visibility .2s}.site-drawer{position:fixed;z-index:40;inset:0 auto 0 0;width:min(420px,86vw);background:#0D1015;transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:transform .25s,visibility .25s;display:flex;flex-direction:column;box-shadow:10px 0 40px rgba(0,0,0,.3)}.drawer-open .drawer-overlay{opacity:1;visibility:visible;pointer-events:auto}.drawer-open .site-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:16px 22px;border-bottom:1px solid rgba(255,255,255,.09)}.drawer-brand img{max-width:130px;height:34px;object-fit:contain}.drawer-brand strong{font-size:22px;color:#F5F7FA}.drawer-close{border:0;background:#171C23;color:#fff;width:38px;height:38px;border-radius:8px;font-size:27px;line-height:1}.drawer-scroll{overflow-y:auto;padding:10px 22px 28px}.drawer-group{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08)}.drawer-group h2{font-size:13px;color:#9098A3;letter-spacing:.07em;margin:0 0 9px}.drawer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}.drawer-links a{padding:8px 9px;border-left:2px solid transparent;border-radius:4px;font-size:14px}.drawer-links a.is-current{color:#6EA8FF;border-left-color:#6EA8FF;background:#171C23}.page{padding-block:42px 64px}.eyebrow{display:inline-block;color:#8ED8FF;font-size:13px;font-weight:bold;letter-spacing:.13em;margin-bottom:13px}.page-lead{max-width:820px;color:#C7CDD5;font-size:17px}.page-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.73fr);gap:28px;align-items:center;margin-bottom:38px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.09)}.page-hero>*{min-width:0}.page-hero h1{margin-bottom:16px}.hero-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:9px}.text-link{color:#8ED8FF;font-weight:bold;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,.08)}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;display:block}.media-placeholder{width:100%;height:100%;background:linear-gradient(140deg,#12161C,#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}.media-hero{height:310px}.media-hero img{object-fit:contain}.media-card{height:174px}.media-topic{height:220px}.media-small-banner{max-height:260px}.media-mobile{max-height:360px;max-width:260px;margin-inline:auto}.section{padding-block:26px 32px;margin-bottom:14px;border-bottom:1px solid rgba(255,255,255,.08)}.section-heading{display:flex;justify-content:space-between;gap:18px;align-items:baseline;margin-bottom:18px}.section-heading h2{margin:0}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:40px;align-items:start}.article-column{min-width:0;max-width:860px}.article-section{margin-bottom:26px}.article-section h2{font-size:23px;margin:0 0 12px}.article-section p{color:#C7CDD5}.sidebar{background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:20px}.sidebar h2{font-size:18px}.sidebar a{display:block;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.07);font-size:14px}.sidebar a:last-child{border-bottom: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))}.topic-card{background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:13px;padding:20px;min-width:0}.topic-card h3{margin:0 0 8px}.topic-card p{font-size:14px;line-height:1.8}.media-card-item{min-width:0}.media-card-item h3{font-size:17px;margin:11px 0 5px}.media-card-item p{font-size:13px;color:#9098A3;line-height:1.65}.split-section{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:28px;align-items:start}.feature-split{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}.split-section>*{min-width:0}.plain-list{list-style:none;padding:0;margin:0}.plain-list li{border-bottom:1px solid rgba(255,255,255,.09);padding:12px 0}.plain-list li:last-child{border-bottom:0}.indexed-list{counter-reset:item;margin:0;padding:0;list-style:none}.indexed-list li{counter-increment:item;display:grid;grid-template-columns:44px 1fr;gap:12px;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.09)}.indexed-list li:before{content:counter(item,decimal-leading-zero);color:#6EA8FF;font-size:18px;font-weight:bold}.indexed-list h3{font-size:18px;margin:0 0 5px}.indexed-list p{font-size:14px;margin:0 0 4px}.notice{background:#12161C;border-left:3px solid #6EA8FF;padding:16px 19px;border-radius:0 10px 10px 0;font-size:14px}.faq-list details{background:#0D1015;border:1px solid rgba(255,255,255,.09);border-radius:10px;padding:14px 18px;margin:0 0 11px}.faq-list summary{color:#F5F7FA;font-weight:bold;cursor:pointer}.faq-list p{font-size:15px;margin:12px 0 0}.site-footer{background:#050608;border-top:1px solid rgba(255,255,255,.09);padding:44px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}.footer-grid>div{min-width:0}.footer-grid h2{font-size:16px;margin:0 0 14px}.footer-grid a:not(.footer-logo){display:block;font-size:14px;margin:6px 0;color:#C7CDD5}.footer-grid a:hover{color:#8ED8FF}.footer-about p{max-width:330px;font-size:14px;color:#9098A3;margin-top:14px}.footer-logo img{height:38px;width:auto;max-width:160px;object-fit:contain}.footer-logo strong{font-size:24px;color:#F5F7FA}.footer-bottom{display:flex;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.09);padding-top:18px;margin-top:32px;font-size:12px;color:#9098A3}.bg-decor{position:relative}.bg-decor:before{content:'';position:absolute;inset:0;background-image:url('/背景.webp');background-size:cover;background-position:center;opacity:.06;pointer-events:none}.bg-decor>*{position:relative}.cards-faq{margin-top:28px}.article-tail{margin-top:28px;padding:18px 0;border-top:1px solid rgba(255,255,255,.09)}.article-tail a{margin-right:17px}.intro-note{color:#9098A3;font-size:14px}.banner-holder{max-width:900px;margin-inline:auto}.wide-cta{margin-top:20px}.tag{font-size:12px;color:#8ED8FF;letter-spacing:.06em}.section-note{max-width:770px}.prose-focus{max-width:850px}.two-text{column-count:2;column-gap:32px}.two-text p{break-inside:avoid}.compact-link-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.compact-link-list a{display:block;padding:12px;border:1px solid rgba(255,255,255,.09);border-radius:10px;background:#12161C}.special-intro{max-width:870px}.media-inline{max-width:520px}.sitemap-hint{font-size:13px;color:#9098A3}
@media(max-width:980px){.container{width:min(100% - 40px,1200px)}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:25px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.channel-inner{gap:22px}}
@media(max-width:767px){body{font-size:15px}.container{width:calc(100% - 32px)}.topbar{height:64px}.menu-toggle{width:40px;height:40px}.brand img{height:28px;max-width:118px}.brand strong{font-size:20px}.enter-button{height:40px;min-width:94px;padding:0 12px;font-size:12px}.channel-inner{gap:20px}.channel-inner a{height:44px;font-size:13px}.page{padding-block:26px 40px}.page-hero{display:flex;flex-direction:column;align-items:stretch;gap:18px;margin-bottom:25px}.page-hero.has-image .hero-visual{order:-1}.page-hero h1{font-size:27px}.page-lead{font-size:15px}.media-hero{height:210px}.media-card{height:146px}.media-topic{height:175px}.section{padding:22px 0 24px}.section-heading h2,h2{font-size:21px}.article-section h2{font-size:20px}.article-layout,.split-section,.feature-split{display:block}.sidebar{margin-top:25px}.grid{gap:14px}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card{padding:14px}.topic-card h3{font-size:17px}.media-card-item h3{font-size:16px}.two-text{column-count:1}.footer-bottom{flex-direction:column}.footer-grid{gap:28px}.section-heading{align-items:start}.media-mobile{max-height:360px}.split-section>.media{margin:0 auto 18px}}
@media(max-width:360px){.topbar{gap:4px}.brand img{max-width:98px}.enter-button{min-width:85px;padding:0 9px;font-size:11px}.grid-3{grid-template-columns:minmax(0,1fr)}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-2{grid-template-columns:minmax(0,1fr)}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.section-heading{flex-direction:column;gap:5px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}