*{box-sizing:border-box}
html{scroll-behavior:smooth;background:#111722}
body{margin:0;background:#111722;color:#E8EDF6;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}
body.drawer-open{overflow:hidden}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(1280px,calc(100% - 44px));margin:0 auto}
.reading{width:min(860px,calc(100% - 44px));margin:0 auto}
.site-main{min-height:60vh}
.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#111722;box-shadow:0 10px 30px rgba(0,0,0,.24)}
.header-inner{max-width:1280px;min-height:72px;margin:0 auto;padding:0 22px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:24px}
.brand-mark,.mobile-brand,.drawer-brand,.footer-brand>a{display:inline-flex;align-items:center}
.brand-mark img,.mobile-brand img,.drawer-brand img,.footer-brand img{height:46px;width:auto;max-width:165px;object-fit:contain}
.logo-fallback{display:inline-flex;align-items:center;min-height:44px;color:#F0D89A;font-weight:800;font-size:22px;letter-spacing:.06em}
.main-nav{display:flex;justify-content:center;align-items:center;gap:clamp(12px,1.6vw,26px);min-width:0}
.main-nav a{white-space:nowrap;color:#BAC3D2;font-size:15px;padding:22px 0;position:relative}
.main-nav a:hover,.main-nav a.is-current{color:#F0D89A}
.main-nav a.is-current:after{content:"";position:absolute;left:0;right:0;bottom:13px;height:2px;background:#E4C77D;border-radius:2px}
.header-actions{display:flex;gap:10px;align-items:center}
.action-link{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border-radius:999px;white-space:nowrap;font-weight:700;font-size:14px}
.action-secondary{border:1px solid rgba(240,216,154,.24);color:#E8EDF6;background:#1E2736}
.action-primary{background:#F0D89A;color:#111722;border:1px solid #F0D89A}
.action-link:hover,.mobile-register:hover{transform:translateY(-1px)}
.category-nav{border-top:1px solid rgba(240,216,154,.08);background:#18202D}
.category-scroll{max-width:1280px;margin:0 auto;padding:0 22px;display:flex;gap:8px;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#465065 transparent}
.category-scroll a{flex:0 0 auto;white-space:nowrap;color:#BAC3D2;padding:10px 11px;font-size:13px}
.category-scroll a:hover{color:#F0D89A;background:#1E2736;border-radius:9px}
.mobile-header{display:none;min-height:64px;padding:0 14px;grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;background:#18202D}
.menu-toggle,.drawer-close,.desktop-tools button{border:1px solid rgba(240,216,154,.18);background:#1E2736;color:#E8EDF6;border-radius:10px;cursor:pointer}
.menu-toggle{justify-self:start;padding:8px 12px}
.mobile-brand{justify-self:center}
.mobile-brand img{height:42px;max-width:145px}
.mobile-register{justify-self:end;white-space:nowrap;background:#F0D89A;color:#111722;font-weight:800;border-radius:999px;padding:8px 12px;font-size:13px}
.drawer-overlay{position:fixed;inset:0;z-index:10000;background:rgba(0,0,0,.58);opacity:0;transition:opacity .18s ease}
.drawer-overlay.is-visible{opacity:1}
.mobile-drawer{position:fixed;z-index:10001;left:0;top:0;bottom:0;width:min(86vw,330px);background:#18202D;box-shadow:18px 0 50px rgba(0,0,0,.42);transform:translateX(-102%);transition:transform .2s ease;overflow-y:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{position:sticky;top:0;background:#18202D;border-bottom:1px solid rgba(240,216,154,.10);min-height:70px;padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.drawer-brand img{height:44px;max-width:150px}
.drawer-close{padding:7px 10px}
.drawer-content{padding:10px 16px 32px}
.drawer-content section{padding:14px 0;border-bottom:1px solid rgba(240,216,154,.08)}
.drawer-content h2{margin:0 0 8px;color:#F0D89A;font-size:14px}
.drawer-content a{display:block;color:#BAC3D2;padding:8px 0;font-size:15px}
.drawer-content a:hover{color:#E4C77D}
.mobile-bottom-nav{display:none}
.hero{padding:34px 0 0}
.hero-slider{position:relative;width:min(1280px,calc(100% - 44px));margin:0 auto;border:1px solid rgba(240,216,154,.14);border-radius:18px;overflow:hidden;background:#18202D;box-shadow:0 16px 42px rgba(0,0,0,.26)}
.hero-slide{display:none;position:relative}
.hero-slide.is-active{display:block}
.hero-media{position:relative;width:100%;aspect-ratio:16/7;min-height:260px;max-height:380px;background:#111722}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:contain;object-position:center center}
.hero-copy{position:absolute;left:28px;bottom:24px;width:min(540px,calc(100% - 56px));padding:18px 20px;background:rgba(11,16,24,.86);border:1px solid rgba(240,216,154,.15);border-radius:14px;backdrop-filter:blur(8px)}
.hero-copy h1,.hero-copy h2{margin:0 0 8px;color:#F0D89A;font-size:clamp(30px,4vw,52px);line-height:1.15}
.hero-copy p{margin:0 0 14px;color:#E8EDF6;line-height:1.65}
.primary-cta{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;background:#F0D89A;color:#111722;border-radius:999px;font-weight:800}
.hero-dots{position:absolute;right:20px;bottom:18px;display:flex;gap:8px;z-index:3}
.hero-dot{width:11px;height:11px;border-radius:999px;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.18);cursor:pointer;padding:0}
.hero-dot.is-active{background:#F0D89A;border-color:#F0D89A}
.section{padding:88px 0}
.section-tight{padding:60px 0}
.section-title{margin:0 0 14px;color:#F0D89A;font-size:clamp(30px,3vw,44px);line-height:1.25}
.section-lead{margin:0;max-width:760px;color:#BAC3D2;font-size:17px}
.eyebrow{display:inline-flex;margin-bottom:12px;padding:4px 10px;border:1px solid rgba(240,216,154,.18);border-radius:999px;color:#E4C77D;font-size:13px;letter-spacing:.04em}
.text-link{color:#E4C77D;font-weight:700}
.text-link:hover{text-decoration:underline}
.guide-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:22px;margin-top:28px}
.guide-primary,.guide-mini,.panel,.topic-card,.service-card,.feedback-item,.faq-item,.info-line,.article-box{background:#18202D;border:1px solid rgba(240,216,154,.12);box-shadow:0 16px 42px rgba(0,0,0,.18)}
.guide-primary{border-radius:18px;padding:30px;min-height:290px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(140deg,#1E2736,#18202D)}
.guide-side{display:grid;gap:22px}
.guide-mini{border-radius:14px;padding:24px;min-height:134px}
.guide-primary h2,.guide-mini h2,.panel h2,.service-card h2,.article-box h2{margin:0 0 10px;color:#F0D89A;line-height:1.3}
.guide-primary p,.guide-mini p,.panel p,.service-card p,.feedback-item p,.article-box p{color:#BAC3D2;margin:0 0 12px}
.timeline{margin-top:30px;border-left:1px solid rgba(240,216,154,.22)}
.timeline-row{position:relative;padding:2px 0 26px 28px;display:grid;grid-template-columns:150px 1fr;gap:18px}
.timeline-row:before{content:"";position:absolute;left:-6px;top:10px;width:11px;height:11px;border-radius:50%;background:#E4C77D}
.timeline-row strong{color:#E8EDF6}
.timeline-row span{color:#BAC3D2}
.split{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:34px;align-items:center}
.split.reverse{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:16px;background:#111722;border:1px solid rgba(240,216,154,.10)}
.media img{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:contain;object-position:center center}
.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#18202D,#111722)}
.media-feature{aspect-ratio:4/3;min-height:220px;max-height:320px}
.media-topic{aspect-ratio:16/10;min-height:150px;max-height:210px}
.media-app{aspect-ratio:4/3;min-height:210px;max-height:300px}
.media-wide{aspect-ratio:16/7;min-height:240px;max-height:360px}
.channel-mosaic{display:grid;grid-template-columns:1.25fr .75fr .75fr;grid-template-rows:auto auto;gap:18px;margin-top:28px}
.channel-mosaic .wide{grid-row:1/3;padding:30px;min-height:350px}
.channel-mosaic .panel{padding:24px;border-radius:14px}
.panel{border-radius:18px;padding:28px}
.panel h3{margin:0 0 8px;color:#F0D89A;font-size:21px}
.panel ul,.article-box ul{margin:12px 0 0;padding-left:20px;color:#BAC3D2}
.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:30px}
.topic-card{border-radius:14px;overflow:hidden}
.topic-card .topic-content{padding:18px}
.topic-card h3{margin:0 0 8px;color:#F0D89A;font-size:18px}
.topic-card p{margin:0 0 10px;color:#BAC3D2;font-size:14px}
.app-gallery{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.service-two{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.service-card{border-radius:18px;padding:26px}
.security-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.security-list a{display:block;background:#18202D;border:1px solid rgba(240,216,154,.12);padding:20px;border-radius:14px}
.security-list strong{display:block;color:#F0D89A;margin-bottom:5px}
.security-list span{color:#BAC3D2;font-size:14px}
.feedback-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}
.feedback-item{padding:22px;border-radius:14px}
.feedback-item strong{display:block;color:#F0D89A;margin-bottom:7px}
.faq-list{display:grid;gap:12px;margin-top:24px}
.faq-item{padding:22px;border-radius:14px}
.faq-item h3{margin:0 0 8px;color:#F0D89A;font-size:18px}
.faq-item p{margin:0;color:#BAC3D2}
.responsible-note{border-radius:18px;border:1px solid rgba(240,216,154,.18);background:#1E2736;padding:28px}
.responsible-note h2{margin:0 0 10px;color:#F0D89A}
.responsible-note p{margin:0;color:#BAC3D2}
.page-hero{padding:72px 0 38px;background:radial-gradient(circle at top right,rgba(240,216,154,.08),transparent 32%)}
.page-hero h1{margin:0 0 16px;color:#F0D89A;font-size:clamp(34px,4.5vw,52px);line-height:1.16}
.page-hero p{max-width:820px;margin:0;color:#BAC3D2;font-size:18px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;color:#8F9AAF;font-size:14px}
.breadcrumbs a{color:#BAC3D2}
.article-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.article-box{border-radius:18px;padding:28px}
.article-box h3{color:#F0D89A;margin:20px 0 8px}
.article-box p+p{margin-top:14px}
.entry-list{display:grid;gap:14px}
.info-line{display:grid;grid-template-columns:160px 1fr;gap:18px;padding:18px 20px;border-radius:14px}
.info-line strong{color:#F0D89A}
.info-line span{color:#BAC3D2}
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.link-grid a{background:#1E2736;border:1px solid rgba(240,216,154,.12);border-radius:12px;padding:16px;color:#E8EDF6}
.link-grid a:hover{border-color:rgba(240,216,154,.34);color:#F0D89A}
.topic-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:30px;align-items:center}
.topic-hero-grid.image-left .media{order:0}
.topic-hero-grid.image-left .topic-copy{order:1}
.topic-hero-grid.image-right .topic-copy{order:0}
.topic-hero-grid.image-right .media{order:1}
.topic-copy h1{margin:0 0 14px;color:#F0D89A;font-size:clamp(34px,4.5vw,50px);line-height:1.18}
.topic-copy p{margin:0;color:#BAC3D2;font-size:17px}
.mixed-width{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.stack{display:grid;gap:18px}
.note-strip{padding:16px 18px;border-left:3px solid #E4C77D;background:#18202D;color:#BAC3D2;border-radius:0 12px 12px 0}
.site-footer{background:#0B1018;margin-top:80px;padding:60px 0 92px;border-top:1px solid rgba(240,216,154,.10)}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:30px}
.footer-grid>div{min-width:0}
.footer-grid h2{margin:0 0 12px;color:#F0D89A;font-size:16px}
.footer-grid a{display:block;color:#BAC3D2;padding:4px 0;font-size:14px}
.footer-grid a:hover{color:#E4C77D}
.footer-brand p{max-width:310px;color:#8F9AAF;font-size:14px}
.footer-legal{margin-top:34px;padding-top:24px;border-top:1px solid rgba(240,216,154,.08);color:#8F9AAF;font-size:13px}
.footer-legal p{margin:4px 0}
.desktop-tools{position:fixed;right:18px;bottom:24px;z-index:1000;display:grid;gap:8px}
.desktop-tools a,.desktop-tools button{min-width:108px;text-align:center;padding:9px 12px;border-radius:10px;background:#18202D;border:1px solid rgba(240,216,154,.14);color:#E8EDF6;font-size:13px}
.desktop-tools .tool-gold{background:#F0D89A;color:#111722;font-weight:800}
.desktop-tools button:hover,.desktop-tools a:hover{border-color:rgba(240,216,154,.35)}
@media (max-width:1100px){
  .header-inner{gap:14px;padding:0 16px}
  .main-nav{gap:12px}
  .main-nav a{font-size:14px}
  .action-link{padding:0 13px}
  .topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .channel-mosaic{grid-template-columns:1fr 1fr}
  .channel-mosaic .wide{grid-column:1/3;grid-row:auto;min-height:260px}
}
@media (max-width:860px){
  .desktop-header{display:none}
  .mobile-header{display:grid}
  .container,.reading{width:min(100% - 30px,1280px)}
  .reading{max-width:860px}
  .hero-slider{width:calc(100% - 30px)}
  .hero{padding-top:18px}
  .hero-media{aspect-ratio:16/8;min-height:220px;max-height:320px}
  .hero-copy{left:18px;bottom:16px;width:calc(100% - 36px);padding:14px 16px}
  .hero-copy h1,.hero-copy h2{font-size:clamp(30px,7vw,42px)}
  .hero-dots{right:16px;top:16px;bottom:auto}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .guide-layout,.split,.split.reverse,.article-grid,.topic-hero-grid,.mixed-width{grid-template-columns:1fr}
  .split.reverse .media{order:0}
  .split.reverse>div:not(.media){order:1}
  .topic-hero-grid.image-right .media{order:0}
  .topic-hero-grid.image-right .topic-copy{order:1}
  .channel-mosaic{grid-template-columns:1fr 1fr}
  .topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .app-gallery{grid-template-columns:1fr 1fr}
  .security-list{grid-template-columns:1fr 1fr}
  .link-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
  .footer-grid>div:last-child{grid-column:2/4}
  .desktop-tools{display:none}
  .site-footer{padding-bottom:130px}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:9998;display:grid;grid-template-columns:repeat(5,1fr);min-height:62px;padding-bottom:env(safe-area-inset-bottom);background:#0B1018;border-top:1px solid rgba(240,216,154,.14)}
  .mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;color:#BAC3D2;font-size:13px;min-width:0}
  .mobile-bottom-nav a:hover{color:#F0D89A}
}
@media (max-width:620px){
  .mobile-header{min-height:62px;padding:0 10px;gap:5px}
  .menu-toggle{padding:7px 9px;font-size:13px}
  .mobile-brand img{height:40px;max-width:132px}
  .mobile-register{padding:7px 9px;font-size:12px}
  .hero-slider{width:calc(100% - 24px);border-radius:14px}
  .hero-media{aspect-ratio:16/10;min-height:190px;max-height:280px}
  .hero-copy{position:relative;left:auto;bottom:auto;width:auto;border:0;border-top:1px solid rgba(240,216,154,.10);border-radius:0;background:#18202D}
  .hero-copy h1,.hero-copy h2{font-size:30px}
  .hero-copy p{font-size:15px}
  .hero-dots{top:12px;right:12px}
  .section{padding:52px 0}
  .section-title{font-size:30px}
  .guide-primary{min-height:230px;padding:24px}
  .timeline-row{grid-template-columns:1fr;gap:4px;padding-left:22px}
  .channel-mosaic{grid-template-columns:1fr}
  .channel-mosaic .wide{grid-column:auto;min-height:240px}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .topic-card .topic-content{padding:14px}
  .topic-card h3{font-size:16px}
  .topic-card p{font-size:13px}
  .app-gallery,.service-two,.security-list,.feedback-list,.link-grid{grid-template-columns:1fr}
  .info-line{grid-template-columns:1fr;gap:5px}
  .article-box,.panel,.service-card{padding:22px}
  .page-hero{padding:48px 0 28px}
  .page-hero h1,.topic-copy h1{font-size:32px}
  .page-hero p,.topic-copy p{font-size:16px}
  .media-feature{min-height:220px;max-height:300px}
  .media-topic{min-height:150px;max-height:190px}
  .media-app{min-height:210px;max-height:280px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
  .footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/3}
}
@media (max-width:390px){
  .mobile-header{padding:0 8px}
  .menu-toggle{padding:6px 8px}
  .mobile-brand img{height:38px;max-width:120px}
  .mobile-register{padding:6px 8px}
  .container,.reading{width:calc(100% - 24px)}
  .topic-grid{gap:10px}
  .topic-card .topic-content{padding:12px}
}