*{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{max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit}
.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}
.site-logo img{display:block;height:40px;width:auto;max-width:160px;object-fit:contain}
.logo-placeholder{display:inline-flex;align-items:center;justify-content:center;min-width:126px;height:40px;padding:0 14px;border:1px solid rgba(248,200,74,.28);border-radius:10px;color:#F8C84A;font-weight:800;letter-spacing:.08em}
.nav-core{display:flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}
.nav-core a{color:#F8C84A;padding:8px 12px;border-radius:999px;font-weight:700;text-decoration:none;background:rgba(248,200,74,.06)}
.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)}
.menu-btn{display:none;width:42px;height:42px;border:1px solid rgba(248,200,74,.22);border-radius:12px;background:#15161A;padding:10px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:#F8C84A;margin:4px 0;border-radius:2px}
.channel-bar{background:#15161A;border-top:1px solid rgba(255,255,255,.03);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:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-inner a{flex:0 0 auto;padding:10px 9px;color:#B8BEC9;text-decoration:none;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}
.wrap{width:min(1200px,calc(100% - 40px));margin:0 auto}
.reading{width:min(820px,calc(100% - 40px));margin:0 auto}
.section{padding:58px 0}
.section.compact{padding:38px 0}
.section + .section{border-top:1px solid rgba(248,200,74,.08)}
.eyebrow{color:#F8C84A;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1,h2,h3{color:#F8C84A;line-height:1.28;margin-top:0}
h1{font-size:clamp(32px,4.5vw,48px);margin-bottom:18px}
h2{font-size:clamp(24px,3vw,32px);margin-bottom:16px}
h3{font-size:20px;margin-bottom:10px}
p{margin:0 0 16px;color:#EDEFF5;font-size:17px}
.lead{font-size:18px;color:#D8DEEA;max-width:850px}
.muted{color:#B8BEC9}
.small{font-size:14px;color:#8E96A6}
.hero-copy{padding:62px 0 44px}
.hero-copy .lead{max-width:820px}
.hero-slider{position:relative;background:#15161A;border-radius:22px;overflow:hidden;aspect-ratio:3/1;min-height:300px;max-height:420px}
.hero-slide{position:absolute;inset:0;display:none;align-items:center;justify-content:center}
.hero-slide.is-active{display:flex}
.hero-slide img{width:100%;height:100%;object-fit:contain;object-position:center;display:block}
.hero-empty{width:100%;height:100%;background:linear-gradient(135deg,#15161A,#202127)}
.hero-prev,.hero-next{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:44px;height:44px;border-radius:50%;border:1px solid rgba(248,200,74,.25);background:rgba(16,17,21,.72);color:#F8C84A;font-size:28px;cursor:pointer}
.hero-prev{left:16px}.hero-next{right:16px}
.hero-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.hero-dot{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:#8E96A6;cursor:pointer}
.hero-dot.is-active{background:#F8C84A;box-shadow:0 0 0 4px rgba(248,200,74,.12)}
.entry-grid,.topic-wall,.three-grid,.service-grid{display:grid;gap:18px}
.entry-grid{grid-template-columns:repeat(4,1fr)}
.topic-wall{grid-template-columns:repeat(4,1fr)}
.three-grid{grid-template-columns:repeat(3,1fr)}
.service-grid{grid-template-columns:repeat(4,1fr)}
.panel,.topic-item,.info-box,.step-item,.faq-item,.mini-link{background:#15161A;border:1px solid rgba(248,200,74,.12);border-radius:17px;box-shadow:0 14px 36px rgba(0,0,0,.2)}
.panel,.topic-item,.info-box,.step-item,.faq-item{padding:22px}
.panel a,.topic-item a,.mini-link a,.text-link{color:#F8C84A;text-decoration:none;font-weight:700}
.panel a:hover,.topic-item a:hover,.text-link:hover{text-decoration:underline}
.notice-strip{background:#1B1C21;border-left:3px solid #F8C84A;border-radius:14px;padding:18px 22px;color:#D8DEEA}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.split.reverse .media{order:2}.split.reverse .split-copy{order:1}
.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::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#15161A,#202127)}
.media.card-media{height:172px;aspect-ratio:auto}
.media.feature-media{height:240px;aspect-ratio:auto}
.app-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;background:#1B1C21;border:1px solid rgba(248,200,74,.14);border-radius:18px;padding:24px}
.link-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.link-row a{display:inline-flex;align-items:center;min-height:40px;padding:8px 14px;border-radius:999px;background:#202127;color:#D8DEEA;text-decoration:none;border:1px solid rgba(248,200,74,.11)}
.link-row a:hover{color:#F8C84A;border-color:rgba(248,200,74,.3)}
.article-nav{display:grid;grid-template-columns:220px 1fr;gap:30px;align-items:start}
.article-nav aside{position:sticky;top:130px;background:#15161A;border:1px solid rgba(248,200,74,.12);border-radius:16px;padding:18px}
.article-nav aside a{display:block;color:#B8BEC9;text-decoration:none;padding:7px 0}
.article-nav aside a:hover{color:#F8C84A}
.prose h2{margin-top:38px}
.prose ul,.prose ol{padding-left:1.3em;color:#D8DEEA}
.prose li{margin:9px 0}
.steps{display:grid;gap:14px;counter-reset:step}
.step-item{position:relative;padding-left:74px}
.step-item::before{counter-increment:step;content:counter(step);position:absolute;left:22px;top:22px;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#F8C84A;color:#101115;font-weight:800}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.quote-note{border-left:3px solid #F8C84A;background:#1B1C21;padding:18px 20px;border-radius:0 14px 14px 0;color:#D8DEEA}
.related-three{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mini-link{padding:16px}
.faq-list{display:grid;gap:14px}
.faq-item h2{font-size:20px}
.topic-intro{display:grid;grid-template-columns:1fr .86fr;gap:26px;align-items:center}
.topic-intro.text-first .media{order:2}
.topic-intro.media-first .media{order:1}.topic-intro.media-first .topic-copy{order:2}
.kicker-list{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.kicker-list span{padding:6px 11px;border-radius:999px;background:#202127;color:#B8BEC9;font-size:14px}
.site-footer{background:#08090C;color:#D8DEEA;padding:48px 0 20px}
.footer-grid{width:min(1200px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
.footer-grid h2{font-size:18px}
.footer-grid a{display:block;color:#B8BEC9;text-decoration:none;margin:7px 0}
.footer-grid a:hover{color:#F8C84A}
.footer-logo img,.drawer-logo img{height:40px;width:auto;max-width:160px;object-fit:contain}
.footer-brand p{font-size:14px;color:#8E96A6;margin-top:15px}
.footer-bottom{width:min(1200px,calc(100% - 40px));margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(248,200,74,.1);display:flex;justify-content:space-between;gap:20px}
.footer-bottom p{font-size:13px;color:#8E96A6;margin:0}
.floating-tools{position:fixed;right:14px;top:42%;z-index:9000;display:flex;flex-direction:column;width:98px;background:#15161A;border:1px solid rgba(248,200,74,.18);border-radius:14px;overflow:hidden;box-shadow:0 14px 36px rgba(0,0,0,.35)}
.floating-tools a,.floating-tools button{min-height:42px;display:flex;align-items:center;justify-content:center;padding:7px;color:#F8C84A;background:#15161A;border:0;border-bottom:1px solid rgba(248,200,74,.08);text-decoration:none;font-size:13px;cursor:pointer}
.floating-tools .float-primary{background:linear-gradient(180deg,#FFE45A 0%,#F8B832 45%,#F3941F 100%);color:#101115;font-weight:800}
.mobile-bottom{display:none}
.drawer-close{border:0;background:transparent;color:#F8C84A;font-size:34px;line-height:1;cursor:pointer}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(248,200,74,.1)}
.drawer-scroll{height:calc(100vh - 74px);overflow-y:auto;padding:10px 16px 28px}
.drawer-group{padding:10px 0;border-bottom:1px solid rgba(248,200,74,.08)}
.drawer-group h2{font-size:14px;color:#8E96A6;margin:0 0 6px}
.drawer-group a{display:block;padding:8px 0;color:#D8DEEA;text-decoration:none}
.drawer-group a:hover{color:#F8C84A}

@media(max-width:1100px){
  .entry-grid,.topic-wall{grid-template-columns:repeat(3,1fr)}
  .floating-tools{display:none}
}
@media(max-width:980px){
  .header-inner{min-height:64px;padding:0 14px;gap:10px}
  .menu-btn{display:block;flex:0 0 42px}
  .site-logo{position:absolute;left:50%;transform:translateX(-50%)}
  .site-logo img{height:36px;max-width:132px}
  .header-action{margin-left:auto;height:40px;min-width:82px;padding:0 14px;font-size:14px}
  .nav-core,.channel-bar{display:none}
  .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;
  }
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .topic-wall{grid-template-columns:repeat(3,1fr)}
  .three-grid,.service-grid{grid-template-columns:repeat(2,1fr)}
  .article-nav{grid-template-columns:1fr}
  .article-nav aside{position:static}
  .hero-slider{min-height:240px;max-height:320px;aspect-ratio:16/6}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  body{padding-bottom:62px}
  .wrap,.reading{width:min(100% - 28px,1200px)}
  .section{padding:38px 0}
  .section.compact{padding:28px 0}
  h1{font-size:clamp(28px,8vw,34px)}
  h2{font-size:24px}
  p{font-size:16px;line-height:1.82}
  .hero-copy{padding:40px 0 28px}
  .hero-slider{min-height:160px;max-height:220px;aspect-ratio:16/8}
  .hero-prev,.hero-next{width:38px;height:38px;font-size:24px}
  .topic-wall{grid-template-columns:repeat(2,1fr);gap:12px}
  .entry-grid,.three-grid,.service-grid{gap:12px}
  .panel,.topic-item,.info-box,.step-item,.faq-item{padding:17px}
  .split,.app-strip,.compare,.topic-intro{grid-template-columns:1fr}
  .split.reverse .media,.split.reverse .split-copy,.topic-intro.text-first .media,.topic-intro.media-first .media,.topic-intro.media-first .topic-copy{order:initial}
  .media.feature-media{height:auto;aspect-ratio:16/9}
  .app-strip{padding:18px}
  .related-three{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:20px}
  .footer-bottom{display:block}
  .footer-bottom p + p{margin-top:8px}
  .mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;height:58px;display:grid;grid-template-columns:repeat(4,1fr);background:#101115;border-top:1px solid rgba(248,200,74,.16)}
  .mobile-bottom a{display:flex;align-items:center;justify-content:center;color:#D8DEEA;text-decoration:none;font-size:14px}
  .mobile-bottom a:hover{color:#F8C84A}
}
@media(max-width:430px){
  .header-inner{padding:0 10px}
  .site-logo img{height:32px;max-width:118px}
  .logo-placeholder{min-width:106px;height:34px;padding:0 9px;font-size:13px}
  .header-action{min-width:76px;padding:0 11px;font-size:13px}
  .menu-btn{width:40px;height:40px}
  .footer-grid{grid-template-columns:1fr}
}