*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#141B22}
body{margin:0;background:#141B22;color:#EEF2F7;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:inherit} img{max-width:100%} button,input{font:inherit}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:rgba(20,27,34,.92);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0,0,0,.22)}
.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:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}
.site-logo img{display:block;height:40px;width:auto;max-width:168px;object-fit:contain}
.logo-fallback{font-size:21px;font-weight:900;letter-spacing:2px;color:#F4B000;white-space:nowrap}
.nav-core{display:flex;align-items:center;justify-content:center;gap:3px;min-width:0}
.nav-core a{color:#F4B000;padding:8px 11px;font-weight:700;text-decoration:none;white-space:nowrap}
.nav-core a.is-current,.nav-core a:hover{color:#FFC533;box-shadow:inset 0 -2px 0 #F4B000}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:96px;padding:0 20px;background:#F4B000;color:#141B22;border-radius:999px;text-decoration:none;font-weight:700;box-shadow:0 10px 24px rgba(244,176,0,.18);white-space:nowrap}
.main-btn:hover{background:#FFC533}
.menu-toggle{display:none;background:none;border:0;padding:8px;width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{width:22px;height:2px;background:#F4B000;border-radius:9px}
.channel-bar{background:#1A232D;border-bottom:1px solid rgba(244,176,0,.14)}
.channel-inner{max-width:1180px;margin:0 auto;padding:0 18px;display:flex;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{flex:0 0 auto;color:#B9C2CF;text-decoration:none;padding:10px 12px;font-size:14px;white-space:nowrap}
.channel-inner a:hover,.channel-inner a.is-current{color:#F4B000}
.site-main{min-height:60vh}
.shell{width:min(1180px,calc(100% - 36px));margin:0 auto}
.reading{width:min(820px,calc(100% - 36px));margin:0 auto}
.section{padding:52px 0}
.section.compact{padding:34px 0}
.kicker{color:#F4B000;font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3{line-height:1.28;margin-top:0}
h1{font-size:clamp(28px,4vw,44px);margin-bottom:20px}
h2{font-size:clamp(22px,2.6vw,30px);color:#F4B000;margin-bottom:18px}
h3{font-size:20px;color:#EEF2F7;margin-bottom:10px}
p{margin:0 0 16px;color:#DDE4EC}
.muted{color:#9EABB8}
.lead{font-size:18px;color:#EEF2F7;max-width:780px}
.page-hero{padding:54px 0 30px;background:linear-gradient(180deg,#10161C 0,#141B22 100%)}
.breadcrumb{font-size:14px;color:#8D98A7;margin-bottom:20px}
.breadcrumb a{text-decoration:none;color:#B9C2CF}
.breadcrumb span{padding:0 8px}
.info-band{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.info-band span{border:1px solid rgba(244,176,0,.18);background:#1A232D;border-radius:999px;padding:6px 12px;color:#B9C2CF;font-size:14px}
.grid-2,.grid-3,.grid-4{display:grid;gap:18px}
.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))}
.card{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:16px;padding:22px;box-shadow:0 14px 36px rgba(0,0,0,.16)}
.card p:last-child{margin-bottom:0}
.card-link{display:inline-flex;margin-top:8px;color:#F4B000;font-weight:700;text-decoration:none}
.card-link:hover{text-decoration:underline}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#1A232D;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:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#1A232D,#10161C);border:1px solid rgba(244,176,0,.14);color:#65717E;font-weight:800;letter-spacing:.12em}
.feature-row{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:28px;align-items:center}
.feature-row.reverse{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr)}
.feature-row.reverse .feature-copy{order:-1}
.text-links{display:grid;gap:10px}
.text-links a{display:block;padding:13px 14px;background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:12px;color:#D8DEE8;text-decoration:none}
.text-links a:hover{color:#F4B000;border-color:rgba(244,176,0,.38)}
.topic-index a{display:flex;align-items:center;justify-content:center;min-height:58px;padding:12px;background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:14px;text-decoration:none;color:#D8DEE8;font-weight:700;text-align:center}
.topic-index a:hover{color:#F4B000;transform:translateY(-1px)}
.bullet-list{padding-left:20px;margin:0}
.bullet-list li{margin:8px 0;color:#DDE4EC}
.step-list{counter-reset:step;display:grid;gap:14px;padding:0;margin:0;list-style:none}
.step-list li{position:relative;background:#1A232D;border-radius:14px;padding:18px 18px 18px 58px;border:1px solid rgba(244,176,0,.14)}
.step-list li:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#F4B000;color:#141B22;font-weight:900}
.note{border-left:3px solid #F4B000;background:#1A232D;padding:18px 20px;border-radius:0 14px 14px 0}
.page-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.page-links a{color:#F4B000;text-decoration:none;border-bottom:1px solid rgba(244,176,0,.38)}
.hero-slider{position:relative;width:min(1180px,calc(100% - 36px));height:360px;margin:26px auto 0;background:#1A232D;border-radius:16px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.28)}
.slides,.slide{position:absolute;inset:0}
.slide{opacity:0;pointer-events:none;transition:opacity .35s ease}
.slide.is-active{opacity:1;pointer-events:auto}
.slide .media{height:100%;aspect-ratio:auto;border-radius:0}
.slider-prev,.slider-next{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(16,22,28,.75);color:#F4B000;font-size:26px;cursor:pointer;z-index:3}
.slider-prev{left:16px}.slider-next{right:16px}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px;z-index:4}
.slider-dot{width:9px;height:9px;padding:0;border:0;border-radius:50%;background:#6D7782;cursor:pointer}
.slider-dot.is-active{background:#F4B000}
.poster-mid{width:min(1100px,calc(100% - 36px));height:220px;margin:0 auto}
.poster-mid .media{height:100%;aspect-ratio:auto}
.app-strip{display:grid;grid-template-columns:minmax(220px,.72fr) minmax(0,1.28fr);gap:22px;align-items:center;background:#10161C;border:1px solid rgba(244,176,0,.14);border-radius:16px;padding:18px}
.app-strip .media{max-height:210px}
.faq-list details{background:#1A232D;border:1px solid rgba(244,176,0,.14);border-radius:14px;padding:16px 18px;margin-bottom:12px}
.faq-list summary{cursor:pointer;font-weight:800;color:#EEF2F7}
.faq-list details p{margin-top:12px}
.mobile-drawer,.drawer-mask{display:none}
.floating-tools{position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:9000;display:flex;flex-direction:column;background:#10161C;border:1px solid rgba(244,176,0,.16);border-radius:14px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.28)}
.floating-tools a,.floating-tools button{width:92px;min-height:44px;display:flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;background:#10161C;color:#F4B000;border:0;border-bottom:1px solid rgba(244,176,0,.12);padding:8px;cursor:pointer;font-size:13px}
.floating-tools .float-primary{background:#F4B000;color:#141B22;font-weight:800}
.mobile-bottom{display:none}
.site-footer{background:#0B1015;color:#D8DEE8;margin-top:46px}
.footer-grid{max-width:1180px;margin:0 auto;padding:42px 18px 24px;display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:30px}
.footer-grid h2{font-size:17px;color:#F4B000}
.footer-grid a{display:block;color:#B9C2CF;text-decoration:none;margin:7px 0}
.footer-grid a:hover{color:#F4B000}
.footer-brand p{color:#8D98A7;max-width:300px;margin-top:14px}
.footer-logo img{height:40px;width:auto;object-fit:contain}
.footer-bottom{border-top:1px solid rgba(216,222,232,.08);padding:18px;text-align:center}
.footer-bottom p{margin:6px auto;color:#8D98A7;font-size:13px;max-width:900px}

@media(max-width:1120px){
  .floating-tools{display:none}
  .nav-core a{padding:8px 8px;font-size:14px}
}
@media(max-width:980px){
  .nav-core,.channel-bar{display:none}
  .menu-toggle{display:flex}
  .header-inner{min-height:64px;padding:0 14px;display:grid;grid-template-columns:42px 1fr auto}
  .site-logo{justify-self:center;min-width:0}
  .site-logo img{height:36px;max-width:148px}
  .header-action{min-width:82px;height:40px;padding:0 14px;font-size:14px}
  .mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#1A232D;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(11,16,21,.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:64px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(244,176,0,.14)}
  .drawer-logo img{height:36px;width:auto;max-width:156px;object-fit:contain}
  .drawer-close{border:0;background:transparent;color:#F4B000;font-size:30px;width:42px;height:42px}
  .drawer-scroll{height:calc(100vh - 64px);overflow-y:auto;padding:14px 14px 100px}
  .drawer-scroll section{padding:10px 0 16px;border-bottom:1px solid rgba(255,255,255,.06)}
  .drawer-scroll h2{font-size:14px;margin:0 0 8px;color:#F4B000}
  .drawer-scroll a{display:block;text-decoration:none;color:#D8DEE8;padding:8px 4px}
  .feature-row,.feature-row.reverse,.app-strip{grid-template-columns:1fr}
  .feature-row.reverse .feature-copy{order:0}
  .grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#141B22;border-top:1px solid rgba(244,176,0,.16);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-bottom a{height:58px;display:flex;align-items:center;justify-content:center;color:#B9C2CF;text-decoration:none;font-size:13px}
  .mobile-bottom a:hover{color:#F4B000}
  .site-footer{padding-bottom:58px}
}
@media(max-width:760px){
  .shell,.reading{width:min(100% - 28px,1180px)}
  .reading{max-width:820px}
  .section{padding:36px 0}
  .section.compact{padding:26px 0}
  .page-hero{padding:34px 0 22px}
  .grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2{grid-template-columns:1fr}
  .hero-slider{width:calc(100% - 28px);height:190px;margin-top:18px}
  .slider-prev,.slider-next{width:36px;height:36px}
  .poster-mid{width:calc(100% - 28px);height:145px}
  .card{padding:18px}
  .lead{font-size:17px}
  .footer-grid{grid-template-columns:1fr;gap:18px;padding-top:34px}
}
@media(min-width:761px) and (max-width:980px){
  .hero-slider{height:270px}
  .poster-mid{height:190px}
}
@media(max-width:390px){
  .header-inner{grid-template-columns:40px minmax(0,1fr) 78px;gap:6px;padding:0 10px}
  .header-action{min-width:78px;padding:0 10px}
  .site-logo img{max-width:132px;height:34px}
  .logo-fallback{font-size:18px}
}