*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#101115}
body{margin:0;background:#101115;color:#EDEFF5;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.78;overflow-x:hidden}
body.drawer-open{overflow:hidden}
img,svg,video,canvas{max-width:100%}
a{color:inherit}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.skip-link{position:fixed;left:12px;top:-60px;z-index:20000;background:#F8C84A;color:#101115;padding:8px 12px;border-radius:8px;text-decoration:none;font-weight:700}
.skip-link:focus{top:12px}
.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:1200px;min-height:72px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;text-decoration:none;min-width:130px}
.site-logo img,.drawer-logo img,.footer-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}
.logo-fallback{display:inline-flex;align-items:center;height:40px;color:#F8C84A;font-weight:800;letter-spacing:.08em;white-space:nowrap}
.nav-core{display:flex;align-items:center;justify-content:center;gap:8px;min-width:0}
.nav-core a{color:#F8C84A;padding:8px 12px;border-radius:999px;font-weight:700;text-decoration:none;background:rgba(248,200,74,.06);white-space:nowrap}
.nav-core a.is-current,.nav-core a:hover{color:#F8C84A;background:linear-gradient(180deg,rgba(248,200,74,.14),rgba(248,200,74,.02));box-shadow:inset 0 -2px 0 #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}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(248,200,74,.16);background:#15161A;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0}
.menu-toggle span{width:18px;height:2px;background:#F8C84A;border-radius:2px}
.channel-strip{background:#15161A;border-top:1px solid rgba(248,200,74,.08);border-bottom:1px solid rgba(248,200,74,.08)}
.channel-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:4px;overflow-x:auto;scrollbar-width:thin}
.channel-inner a{flex:0 0 auto;color:#B8BEC9;text-decoration:none;padding:11px 9px;font-size:14px;white-space:nowrap}
.channel-inner a:hover,.channel-inner a.is-current{color:#F8C84A}
.mobile-drawer,
.drawer-mask{display:none}
.site-main{min-height:60vh;padding-bottom:36px}
.container{width:min(1200px,calc(100% - 40px));margin:0 auto}
.reading{width:min(820px,calc(100% - 40px));margin-left:auto;margin-right:auto}
.section{padding:58px 0}
.section.compact{padding:36px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
.section-head h2{margin:0;color:#F8C84A;font-size:clamp(24px,3vw,34px);line-height:1.25}
.section-head p{margin:0;color:#8E96A6;max-width:580px}
.eyebrow{display:inline-flex;color:#F8C84A;font-weight:700;letter-spacing:.08em;font-size:13px;margin-bottom:10px}
.hero-copy{padding:52px 0 24px}
.hero-copy h1,.article-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.18;margin:0 0 16px;color:#F8C84A}
.hero-copy p,.article-hero p{margin:0;color:#D8DEEA;font-size:17px;max-width:820px}
.article-hero{padding:52px 0 28px}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:30px;align-items:start}
.article-main{min-width:0}
.article-main h2,.article-main h3{color:#F8C84A;line-height:1.35}
.article-main h2{font-size:28px;margin:34px 0 12px}
.article-main h3{font-size:21px;margin:26px 0 10px}
.article-main p{font-size:17px;color:#EDEFF5;margin:0 0 18px}
.article-main ul,.article-main ol{margin:0 0 20px;padding-left:1.25em;color:#D8DEEA}
.article-main li{margin:8px 0}
.side-index{position:sticky;top:132px;background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:18px;padding:18px}
.side-index h2{font-size:16px;margin:0 0 10px;color:#F8C84A}
.side-index a{display:block;color:#B8BEC9;text-decoration:none;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.side-index a:last-child{border-bottom:0}
.side-index a:hover{color:#F8C84A}
.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.card{background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:18px;padding:20px;box-shadow:0 14px 36px rgba(0,0,0,.35);min-width:0}
.card h2,.card h3{margin:0 0 10px;color:#F8C84A;line-height:1.35}
.card h2{font-size:21px}.card h3{font-size:18px}
.card p{margin:0;color:#B8BEC9}
.text-link{display:inline-flex;margin-top:14px;color:#F8C84A;text-decoration:none;font-weight:700}
.text-link:hover{text-decoration:underline}
.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.topic-item{background:#15161A;border:1px solid rgba(248,200,74,.12);border-radius:16px;padding:18px}
.topic-item h3{margin:0 0 7px;color:#F8C84A;font-size:18px}
.topic-item p{margin:0;color:#B8BEC9;font-size:14px;line-height:1.7}
.topic-item a{display:inline-flex;margin-top:10px;color:#F8C84A;text-decoration:none;font-weight:700}
.notice-band{background:#1B1C21;border-top:1px solid rgba(248,200,74,.16);border-bottom:1px solid rgba(248,200,74,.16);padding:20px 0}
.notice-band p{margin:0;color:#D8DEEA;font-size:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.split.reverse .split-media{order:2}
.split-copy{background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:18px;padding:26px}
.split-copy h2{margin:0 0 12px;color:#F8C84A;font-size:28px}
.split-copy p{margin:0 0 14px;color:#D8DEEA}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;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;background:linear-gradient(135deg,#15161A,#202127)}
.feature-media{min-height:220px}
.card-media{min-height:156px}
.carousel-wrap{padding:30px 0 8px}
.carousel{position:relative;border-radius:22px;overflow:hidden;background:#15161A;box-shadow:0 14px 36px rgba(0,0,0,.35);height:380px}
.carousel-track,.carousel-slide{width:100%;height:100%}
.carousel-slide{display:none;position:absolute;inset:0}
.carousel-slide.is-active{display:block}
.carousel-slide .media{height:100%;aspect-ratio:auto;border-radius:0}
.carousel-prev,.carousel-next{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid rgba(248,200,74,.35);background:rgba(16,17,21,.78);color:#F8C84A;font-size:26px;z-index:3}
.carousel-prev{left:14px}.carousel-next{right:14px}
.carousel-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.carousel-dot{width:10px;height:10px;border:0;border-radius:50%;background:#8E96A6;padding:0}
.carousel-dot.is-active{background:#F8C84A;transform:scale(1.15)}
.app-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;background:#1B1C21;border:1px solid rgba(248,200,74,.16);border-radius:18px;padding:24px}
.app-strip h2{margin:0 0 10px;color:#F8C84A;font-size:28px}
.app-strip p{margin:0;color:#D8DEEA}
.soft-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.soft-box{background:#1B1C21;border-radius:16px;padding:20px;border:1px solid rgba(248,200,74,.12)}
.soft-box h2,.soft-box h3{margin:0 0 9px;color:#F8C84A}
.soft-box p{margin:0;color:#B8BEC9}
.step-list{counter-reset:steps;display:grid;gap:14px}
.step{counter-increment:steps;background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:16px;padding:18px 18px 18px 64px;position:relative}
.step:before{content:counter(steps);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#F8C84A;color:#101115;font-weight:800}
.step h2,.step h3{margin:0 0 7px;color:#F8C84A}
.step p{margin:0;color:#D8DEEA}
.question-open{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:26px 0}
.question-open article{background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:16px;padding:18px}
.question-open h2,.question-open h3{margin:0 0 8px;color:#F8C84A;font-size:19px}
.question-open p{margin:0;color:#B8BEC9}
.related-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.related-links a{border:1px solid rgba(248,200,74,.2);background:#15161A;border-radius:999px;padding:8px 13px;color:#F8C84A;text-decoration:none}
.faq-list{display:grid;gap:14px}
.faq-item{background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:16px;padding:20px}
.faq-item h2{margin:0 0 8px;color:#F8C84A;font-size:20px}
.faq-item p{margin:0;color:#D8DEEA}
.callout{background:#202127;border-left:3px solid #F8C84A;border-radius:0 16px 16px 0;padding:18px 20px;margin:22px 0;color:#D8DEEA}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.meta-row span{display:inline-flex;padding:7px 10px;border-radius:999px;background:#1B1C21;color:#B8BEC9;font-size:14px}
.site-footer{background:#08090C;color:#D8DEEA;padding:50px 0 100px}
.footer-grid{width:min(1200px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr 1.3fr .9fr;gap:28px}
.site-footer h2{margin:0 0 12px;color:#F8C84A;font-size:18px}
.site-footer p{margin:12px 0 0;color:#B8BEC9}
.site-footer section>a,.footer-topic-grid a{display:block;color:#D8DEEA;text-decoration:none;padding:4px 0}
.site-footer a:hover{color:#F8C84A}
.footer-topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px 12px}
.footer-bottom{width:min(1200px,calc(100% - 40px));margin:30px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:20px;align-items:flex-start}
.footer-bottom p{margin:0;color:#8E96A6;font-size:13px}
.float-tools{position:fixed;right:12px;top:50%;transform:translateY(-50%);z-index:9000;width:88px;display:flex;flex-direction:column;background:#15161A;border:1px solid rgba(248,200,74,.16);border-radius:16px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.35)}
.float-tools a,.float-tools button{display:flex;min-height:44px;align-items:center;justify-content:center;text-align:center;padding:7px;border:0;border-bottom:1px solid rgba(255,255,255,.06);background:#15161A;color:#F8C84A;text-decoration:none;font-size:12px}
.float-tools .float-register{background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;font-weight:800}
.float-tools button:last-child{border-bottom:0}
.mobile-bottom{display:none}
@media(max-width:1180px){
  .nav-core{gap:4px}.nav-core a{padding:8px 9px;font-size:14px}
  .float-tools{display:none}
}
@media(max-width:980px){
  .header-inner{min-height:66px;padding:0 14px}
  .menu-toggle{display:flex;flex:0 0 42px}
  .nav-core,.channel-strip{display:none}
  .site-logo{justify-content:center;min-width:0;flex:1}
  .site-logo img{height:36px;max-width:145px}
  .header-action{height:40px;min-width:78px;padding:0 14px;font-size:14px;flex:0 0 auto}
  .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 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.08)}
  .drawer-logo{min-width:0}
  .drawer-logo img{height:34px;max-width:140px}
  .drawer-close{width:40px;height:40px;border:1px solid rgba(248,200,74,.16);border-radius:12px;background:#202127;color:#F8C84A;font-size:26px;line-height:1}
  .drawer-scroll{height:calc(100vh - 66px);overflow-y:auto;padding:16px 16px 110px}
  .drawer-group{margin-bottom:18px}
  .drawer-group h2{font-size:13px;color:#8E96A6;margin:0 0 8px}
  .drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .drawer-links a{background:#1B1C21;border:1px solid rgba(248,200,74,.1);border-radius:12px;padding:10px;color:#D8DEEA;text-decoration:none;font-size:14px}
  .drawer-links a.is-current{color:#F8C84A;border-color:rgba(248,200,74,.28)}
  .article-shell{grid-template-columns:1fr}.side-index{position:static;order:-1}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .soft-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .question-open{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column}
  .carousel{height:290px}
}
@media(max-width:680px){
  .container,.reading,.footer-grid,.footer-bottom{width:min(100% - 28px,1200px)}
  .section{padding:40px 0}.section.compact{padding:28px 0}
  .hero-copy,.article-hero{padding:36px 0 20px}
  .hero-copy h1,.article-hero h1{font-size:clamp(28px,8vw,34px)}
  .article-main h2{font-size:24px}
  .article-main p{font-size:16px;line-height:1.82}
  .split,.app-strip{grid-template-columns:1fr}
  .split.reverse .split-media{order:0}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .card{padding:16px}.card h2{font-size:18px}
  .soft-grid{grid-template-columns:1fr}
  .section-head{display:block}.section-head p{margin-top:8px}
  .carousel-wrap{padding-top:18px}.carousel{height:200px;border-radius:20px}
  .carousel-prev,.carousel-next{width:38px;height:38px;font-size:22px}
  .app-strip{padding:18px}.app-strip h2{font-size:24px}
  .site-footer{padding-top:40px;padding-bottom:92px}
  .footer-grid{grid-template-columns:1fr}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#101115;border-top:1px solid rgba(248,200,74,.16);padding-bottom:max(0px,env(safe-area-inset-bottom))}
  .mobile-bottom a{display:flex;min-height:58px;align-items:center;justify-content:center;color:#F8C84A;text-decoration:none;font-size:13px}
  .site-main{padding-bottom:72px}
}
@media(max-width:390px){
  .header-inner{gap:8px;padding:0 10px}
  .site-logo img{max-width:126px;height:32px}
  .logo-fallback{font-size:14px}
  .header-action{min-width:72px;padding:0 11px;font-size:13px}
  .menu-toggle{width:40px;height:40px}
}