:root{color-scheme:dark;--bg:#101115;--card:#15161A;--aux:#1B1C21;--sub:#202127;--gold:#F8C84A;--text:#EDEFF5;--muted:#B8BEC9;--soft:#8E96A6;--footer:#08090C;--footerText:#D8DEEA;--line:rgba(248,200,74,.16);--shadow:0 14px 36px rgba(0,0,0,.35)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:#101115;color:#EDEFF5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;line-height:1.78}
a{color:inherit}img,svg,video{max-width:100%}button,input,textarea{font:inherit}.drawer-open{overflow:hidden}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#101115;box-shadow:0 8px 24px rgba(0,0,0,.28);backdrop-filter:blur(10px)}
.header-inner{max-width:1180px;min-height:70px;margin:0 auto;padding:0 18px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-logo,.drawer-logo,.footer-logo{display:flex;align-items:center;flex:0 0 auto;text-decoration:none}.site-logo img,.drawer-logo img,.footer-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}.logo-fallback{display:block;width:150px;height:40px;border:1px solid var(--line);border-radius:10px;background:#15161A}
.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0;white-space:nowrap}.nav-core a{color:#F8C84A;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}.nav-core a.is-current,.nav-core a:hover{color:#FFE45A;border-bottom:2px solid #F8C84A}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(243,148,31,.28);white-space:nowrap}.main-btn:hover{filter:brightness(1.04)}
.menu-toggle{display:none;background:#1B1C21;color:#F8C84A;border:1px solid var(--line);border-radius:10px;min-width:54px;height:40px;cursor:pointer}
.channel-bar{background:#15161A;border-top:1px solid rgba(255,255,255,.03);border-bottom:1px solid rgba(255,255,255,.04)}.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;color:#B8BEC9;text-decoration:none;font-size:14px;padding:9px 8px;white-space:nowrap}.channel-inner a:hover{color:#F8C84A}.channel-sep{flex:0 0 1px;height:18px;background:var(--line);margin:0 4px}
.mobile-drawer,.drawer-mask{display:none}
.page-main{width:100%;max-width:100%;overflow:hidden}.shell{width:min(1180px,calc(100% - 36px));margin:0 auto}.reading{width:min(820px,100%);margin-left:auto;margin-right:auto}.section{padding:54px 0}.section-tight{padding:34px 0}.section-title{margin:0 0 10px;color:#F8C84A;font-size:30px;line-height:1.25}.section-kicker{margin:0 0 10px;color:#B8BEC9;font-size:14px;letter-spacing:.06em}.lead{font-size:18px;color:#D8DEEA;margin:0;line-height:1.9}.hero-copy{padding:52px 0 22px}.hero-copy h1,.article-head h1{font-size:clamp(34px,4.2vw,46px);line-height:1.2;color:#F8C84A;margin:0 0 18px}.hero-copy p,.article-head p{max-width:820px;color:#B8BEC9;font-size:18px;margin:0;line-height:1.85}.article-head{padding:52px 0 30px}.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:#8E96A6;font-size:14px;margin-bottom:14px}.breadcrumbs a{text-decoration:none;color:#B8BEC9}.breadcrumbs a:hover{color:#F8C84A}
.card{background:#15161A;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:24px;min-width:0}.card h2,.card h3{margin:0 0 10px;color:#F8C84A;line-height:1.35}.card p{margin:0;color:#B8BEC9}.card a.text-link,.text-link{display:inline-flex;margin-top:14px;color:#F8C84A;text-decoration:none;font-weight:700}.card a.text-link:hover,.text-link:hover{text-decoration:underline}.soft-card{background:#1B1C21;border-radius:14px;padding:22px;border:1px solid rgba(255,255,255,.05)}.soft-card h2,.soft-card h3{margin-top:0;color:#F8C84A}.soft-card p:last-child{margin-bottom:0}.note{border-left:3px solid #F8C84A;background:#1B1C21;padding:18px 20px;border-radius:0 14px 14px 0;color:#D8DEEA}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#15161A;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;display:block;background:linear-gradient(135deg,#15161A,#1B1C21)}.media.card-media{height:166px;aspect-ratio:auto}.media.article-media{height:230px;aspect-ratio:auto}
.carousel-wrap{padding:28px 0 18px}.carousel{position:relative;background:#15161A;border-radius:16px;overflow:hidden;height:340px;box-shadow:var(--shadow)}.carousel-slide{display:none;position:absolute;inset:0}.carousel-slide.is-active{display:block}.carousel-slide img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}.carousel-slide .slide-placeholder{position:absolute;inset:0;background:#15161A}.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:rgba(16,17,21,.82);color:#F8C84A;cursor:pointer;font-size:24px}.carousel-arrow.prev{left:14px}.carousel-arrow.next{right:14px}.carousel-dots{position:absolute;left:50%;bottom:12px;z-index:3;display:flex;gap:8px;transform:translateX(-50%)}.carousel-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#8E96A6;cursor:pointer}.carousel-dot.is-active{background:#F8C84A}
.magazine-grid{display:grid;grid-template-columns:minmax(0,58fr) minmax(0,42fr);gap:20px;align-items:stretch}.magazine-feature{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:center}.stack-cards{display:grid;gap:14px}.stack-cards .card{box-shadow:none}.stack-cards h3{font-size:20px}.topic-strip{display:flex;gap:10px;overflow-x:auto;padding:4px 2px 12px;scrollbar-width:thin}.topic-strip a{flex:0 0 auto;text-decoration:none;color:#EDEFF5;border:1px solid var(--line);background:#1B1C21;border-radius:999px;padding:9px 16px;white-space:nowrap}.topic-strip a:hover{color:#F8C84A;border-color:rgba(248,200,74,.38)}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.service-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.service-links a{background:#15161A;border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:#D8DEEA}.service-links a:hover{color:#F8C84A}
.content-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.content-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center}.split.reverse .media{order:2}.toc{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}.toc a{color:#D8DEEA;background:#1B1C21;border:1px solid var(--line);border-radius:999px;text-decoration:none;padding:8px 14px}.toc a:hover{color:#F8C84A}.prose h2{color:#F8C84A;font-size:26px;margin:34px 0 12px}.prose h3{color:#F8C84A;font-size:20px;margin:26px 0 10px}.prose p{font-size:17px;color:#D8DEEA;margin:0 0 18px;line-height:1.9}.prose ul,.prose ol{padding-left:1.25em;color:#D8DEEA}.prose li{margin:8px 0}.prose a{color:#F8C84A}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:26px}.related-links a{display:block;background:#1B1C21;border:1px solid var(--line);border-radius:14px;padding:16px;text-decoration:none;color:#D8DEEA}.related-links a:hover{color:#F8C84A}.step-list{counter-reset:steps;display:grid;gap:14px}.step-item{position:relative;background:#15161A;border:1px solid var(--line);border-radius:14px;padding:18px 18px 18px 64px}.step-item:before{counter-increment:steps;content:counter(steps);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#F8C84A;color:#101115;font-weight:700}.step-item h2,.step-item h3{margin:0 0 6px;color:#F8C84A}.step-item p{margin:0;color:#B8BEC9}.question-lead{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.question-lead .soft-card{border-left:2px solid #F8C84A}.faq-list{display:grid;gap:14px}.faq-item{background:#15161A;border:1px solid var(--line);border-radius:14px;padding:22px}.faq-item h2{font-size:20px;color:#F8C84A;margin:0 0 10px}.faq-item p{margin:0;color:#D8DEEA}.link-list{display:grid;gap:10px}.link-list a{display:flex;align-items:center;justify-content:space-between;gap:16px;text-decoration:none;color:#D8DEEA;background:#1B1C21;border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:14px 16px}.link-list a:hover{color:#F8C84A}.link-list a:after{content:'›';color:#F8C84A;font-size:20px}.compact-list{display:flex;flex-wrap:wrap;gap:10px}.compact-list a{color:#D8DEEA;border-bottom:1px solid var(--line);text-decoration:none;padding:5px 0}.compact-list a:hover{color:#F8C84A}
.floating-tools{position:fixed;right:12px;top:50%;transform:translateY(-50%);z-index:8000;display:grid;gap:6px;width:54px}.floating-tools a,.floating-tools button{writing-mode:vertical-rl;display:flex;align-items:center;justify-content:center;min-height:72px;padding:8px 5px;border-radius:10px;background:#15161A;border:1px solid var(--line);color:#F8C84A;text-decoration:none;font-size:13px;cursor:pointer}.floating-tools .float-register{background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;border:0;font-weight:700}.mobile-bottom{display:none}
.site-footer{background:#08090C;color:#D8DEEA;border-top:1px solid rgba(255,255,255,.05);padding:52px 0 0}.footer-grid{width:min(1180px,calc(100% - 36px));margin:0 auto;display:grid;grid-template-columns:1.15fr 1fr 1.7fr 1fr;gap:28px}.footer-grid h2{font-size:16px;color:#F8C84A;margin:0 0 14px}.footer-grid a{display:block;color:#B8BEC9;text-decoration:none;padding:4px 0}.footer-grid a:hover{color:#F8C84A}.footer-brand p{color:#8E96A6;font-size:14px;margin-top:14px}.footer-mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:16px}.footer-bottom{margin-top:36px;border-top:1px solid rgba(255,255,255,.05);padding:18px max(18px,calc((100% - 1180px)/2));color:#8E96A6;font-size:13px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
@media(max-width:1240px){.floating-tools{display:none}.shell{width:min(1120px,calc(100% - 36px))}}
@media(max-width:980px){
  .nav-core,.channel-bar{display:none}.header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:72px 1fr 104px;gap:8px}.menu-toggle{display:inline-flex;align-items:center;justify-content:center}.site-logo{justify-self:center}.site-logo img{height:36px;max-width:142px}.header-action{justify-self:end;height:40px;min-width:92px;padding:0 14px}.logo-fallback{width:130px;height:36px}
  .mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#15161A;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.36)}
  .mobile-drawer.is-open{transform:translateX(0)}
  .drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.52);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}
  .drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
  .drawer-head{height:66px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.06)}.drawer-logo img{height:34px;max-width:138px}.drawer-close{border:1px solid var(--line);background:#202127;color:#F8C84A;border-radius:9px;height:38px;padding:0 12px}.drawer-scroll{height:calc(100vh - 66px);overflow:auto;padding:14px 14px 30px}.drawer-scroll section{padding:10px 0 14px;border-bottom:1px solid rgba(255,255,255,.06)}.drawer-scroll h2{font-size:13px;color:#8E96A6;margin:0 0 8px}.drawer-scroll a{display:block;padding:9px 8px;color:#D8DEEA;text-decoration:none;border-radius:8px}.drawer-scroll a:hover{background:#1B1C21;color:#F8C84A}
  .carousel{height:260px}.magazine-grid{grid-template-columns:1fr}.magazine-feature{grid-template-columns:1.15fr .85fr}.three-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.three-grid .card{padding:18px}.content-grid-3{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.question-lead{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  body{padding-bottom:58px}.shell{width:min(100% - 28px,1180px)}.section{padding:38px 0}.section-tight{padding:26px 0}.hero-copy{padding:38px 0 18px}.hero-copy h1,.article-head h1{font-size:clamp(26px,8vw,32px)}.article-head{padding:38px 0 24px}.section-title{font-size:25px}.lead,.hero-copy p,.article-head p{font-size:16px}.prose p{font-size:16px;line-height:1.82}.prose h2{font-size:23px}
  .carousel-wrap{padding-top:18px}.carousel{height:180px;border-radius:14px}.carousel-arrow{width:36px;height:36px;font-size:20px}.carousel-arrow.prev{left:8px}.carousel-arrow.next{right:8px}
  .magazine-feature{grid-template-columns:1fr}.three-grid,.content-grid-2,.content-grid-3,.split,.question-lead{grid-template-columns:1fr}.split.reverse .media{order:0}.service-links{grid-template-columns:1fr 1fr}.related-links{grid-template-columns:1fr}.media.article-media{height:210px}.media.card-media{height:156px}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);background:#101115;border-top:1px solid rgba(248,200,74,.18);box-shadow:0 -8px 24px rgba(0,0,0,.28)}.mobile-bottom a{text-align:center;text-decoration:none;color:#D8DEEA;padding:13px 4px;font-size:13px}.mobile-bottom a:hover{color:#F8C84A}
  .site-footer{padding-top:38px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{padding:16px 14px}.footer-mini-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:430px){.header-inner{grid-template-columns:62px 1fr 96px;padding:0 10px}.menu-toggle{min-width:50px}.site-logo img{height:32px;max-width:130px}.header-action{min-width:88px;padding:0 12px}.carousel{height:170px}.service-links{grid-template-columns:1fr}.card{padding:20px}}
@media(max-width:390px){.header-inner{grid-template-columns:58px 1fr 92px;gap:6px}.menu-toggle{min-width:48px;padding:0 8px}.site-logo img{height:30px;max-width:120px}.header-action{min-width:84px;padding:0 10px;font-size:14px}.carousel{height:162px}}
@media(max-width:375px){.header-inner{grid-template-columns:56px 1fr 88px}.site-logo img{height:28px;max-width:112px}.header-action{min-width:82px;padding:0 9px}.carousel{height:156px}}