:root{--bg:#111722;--top:#18202D;--panel:#1E2736;--accent-panel:#253044;--gold:#F0D89A;--gold2:#E4C77D;--text:#E8EDF6;--muted:#BAC3D2;--soft:#8F9AAF;--footer:#0B1018;--line:rgba(240,216,154,.14);--shadow:0 16px 42px rgba(0,0,0,.26);--radius:18px;--small-radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8;overflow-x:hidden}
body.drawer-open{overflow:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:var(--gold2)}
img{max-width:100%}
button{font:inherit}
.container{width:min(1280px,calc(100% - 44px));margin:0 auto}
.article-wrap{width:min(860px,calc(100% - 44px));margin:0 auto}
.site-main{min-height:60vh;overflow-x:hidden}
.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-logo,.drawer-logo{display:flex;align-items:center;min-width:0}
.brand-mark img,.mobile-logo img,.drawer-logo img,.footer-brand img{display:block;height:46px;width:auto;max-width:165px;object-fit:contain}
.logo-placeholder{display:block;width:150px;height:44px;border:1px solid var(--line);border-radius:10px;background:#111722}
.main-nav{display:flex;justify-content:center;align-items:center;gap:clamp(12px,1.6vw,25px);min-width:0}
.main-nav a{font-size:15px;white-space:nowrap;color:var(--muted)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn,.mobile-register{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);white-space:nowrap}
.btn-dark{background:var(--panel);color:var(--text)}
.btn-gold,.mobile-register{background:var(--gold);border-color:var(--gold);color:#161A21;font-weight:700}
.category-bar{background:#151C28;border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid var(--line)}
.category-scroll{max-width:1280px;margin:0 auto;padding:0 22px;display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}
.category-scroll a{display:inline-flex;min-height:44px;align-items:center;padding:0 10px;color:var(--soft);font-size:13px}
.mobile-header{display:none;min-height:64px;grid-template-columns:84px minmax(0,1fr) 84px;align-items:center;padding:0 14px;gap:8px}
.mobile-logo{justify-content:center}.mobile-logo img{height:40px;max-width:132px}
.menu-toggle,.drawer-close,.back-top{border:0;background:transparent;color:var(--text);cursor:pointer}
.menu-toggle{justify-self:start;font-size:26px;padding:8px 10px}.mobile-register{justify-self:end;font-size:13px;padding:0 11px;min-height:36px}
.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;left:0;top:0;bottom:0;z-index:10001;width:min(86vw,330px);background:#18202D;transform:translateX(-102%);transition:transform .2s ease;box-shadow:20px 0 40px rgba(0,0,0,.3);overflow:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{position:sticky;top:0;z-index:2;background:#18202D;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}
.drawer-head img{height:40px;max-width:145px}.drawer-close{font-size:32px;line-height:1;padding:4px 8px}
.drawer-body{padding:10px 18px 30px}.drawer-group{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}.drawer-group h2{margin:0 0 7px;font-size:13px;color:var(--gold);letter-spacing:.08em}.drawer-group a{display:block;padding:7px 0;color:var(--muted);font-size:14px}
.section{padding:84px 0}.section.compact{padding:56px 0}.section.alt{background:#0F1520}.section-header{max-width:840px;margin:0 0 30px}.eyebrow{display:inline-flex;align-items:center;min-height:30px;padding:0 12px;border-radius:999px;background:rgba(240,216,154,.08);border:1px solid var(--line);color:var(--gold);font-size:13px;letter-spacing:.04em}.section h1,.hero-copy h1{font-size:clamp(34px,4vw,52px);line-height:1.15;margin:14px 0 18px;color:var(--gold);letter-spacing:-.02em}.section h2{font-size:clamp(26px,3vw,36px);line-height:1.25;margin:0 0 16px;color:var(--gold)}.section h3{font-size:20px;line-height:1.35;margin:0 0 10px;color:#F6E7BE}.section p{margin:0 0 16px;color:var(--muted);font-size:17px}.lead{font-size:19px!important;max-width:850px}.muted{color:var(--soft)!important}.text-link{color:var(--gold);font-weight:700}.text-link::after{content:" →"}
.hero{padding:44px 0 70px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,1.15fr);gap:36px;align-items:center}.hero-copy{max-width:600px}.hero-copy p{font-size:18px;color:var(--muted);margin:0 0 22px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.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,#151C28,#1C2635)}
.media.hero-poster{aspect-ratio:16/7;min-height:260px;max-height:380px}.media.topic{aspect-ratio:16/10;min-height:150px;max-height:210px}.media.feature{aspect-ratio:4/3;min-height:220px;max-height:320px}.media.app-image{aspect-ratio:4/3;min-height:210px;max-height:300px}
.slider{position:relative}.slide{display:none}.slide.is-active{display:block}.slider-dots{display:flex;justify-content:center;gap:8px;margin-top:12px}.slider-dot{width:9px;height:9px;border-radius:50%;border:0;background:#536075;cursor:pointer}.slider-dot.is-active{background:var(--gold)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.stack{display:grid;gap:18px}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:center}.split.wide{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--small-radius);padding:24px;box-shadow:0 10px 24px rgba(0,0,0,.12)}.card.emphasis{background:var(--accent-panel);padding:30px}.card p:last-child{margin-bottom:0}.card-list{display:grid;gap:14px}.line-item{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:start;padding:17px 0;border-bottom:1px solid rgba(255,255,255,.07)}.line-item:last-child{border-bottom:0}.line-index{color:var(--gold);font-weight:700}.line-item h3{margin:0 0 5px}.line-item p{margin:0;font-size:15px}
.feature-layout{display:grid;grid-template-columns:45fr 55fr;gap:34px;align-items:center}.mosaic{display:grid;grid-template-columns:1.4fr .8fr;grid-template-rows:auto auto;gap:20px}.mosaic .wide-card{grid-row:1/3}.topic-card{display:flex;flex-direction:column;gap:14px}.topic-card .media{margin-bottom:4px}.topic-card p{font-size:15px}.tag-list{display:flex;flex-wrap:wrap;gap:10px}.tag-list a,.tag-list span{display:inline-flex;align-items:center;min-height:34px;padding:0 13px;border-radius:999px;background:#1B2432;border:1px solid var(--line);color:var(--muted);font-size:14px}
.timeline{border-left:1px solid var(--line);padding-left:24px;display:grid;gap:0}.timeline-item{position:relative;padding:0 0 26px 8px}.timeline-item::before{content:"";position:absolute;left:-29px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 5px rgba(240,216,154,.08)}.timeline-item h3{margin-bottom:6px}.timeline-item p{margin-bottom:0;font-size:16px}
.feedback-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.quote{background:#161E2B;border-left:3px solid var(--gold);padding:20px 22px;border-radius:0 14px 14px 0;color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px}.faq-item h3{font-size:18px;margin-bottom:8px}.faq-item p{font-size:16px;margin:0}
.notice{background:rgba(240,216,154,.06);border:1px solid var(--line);border-radius:16px;padding:22px}.notice strong{color:var(--gold)}
.breadcrumbs{padding:22px 0 0;color:var(--soft);font-size:14px}.breadcrumbs a{color:var(--muted)}
.page-hero{padding:54px 0 38px}.page-hero .inner{max-width:900px}.page-hero h1{font-size:clamp(34px,4.2vw,50px);line-height:1.18;color:var(--gold);margin:12px 0 16px}.page-hero p{font-size:19px;color:var(--muted);margin:0}.info-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.info-strip .item{background:#151D2A;border:1px solid var(--line);border-radius:14px;padding:18px}.info-strip strong{display:block;color:var(--gold);margin-bottom:4px}
.related-nav{display:flex;flex-wrap:wrap;gap:10px}.related-nav a{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:999px;background:var(--panel);border:1px solid var(--line);color:var(--muted)}
.article-columns{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}.article-columns .card{height:100%}.article-text{max-width:860px}.article-text h2{margin-top:36px}.article-text ul{margin:0 0 18px;padding-left:22px;color:var(--muted)}.article-text li{margin:8px 0}.article-text p{font-size:17px}
.site-footer{background:var(--footer);border-top:1px solid rgba(255,255,255,.05);padding:54px 0 110px}.footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:34px}.footer-brand p{max-width:310px;color:var(--soft);font-size:14px;margin-top:14px}.site-footer nav h2{font-size:15px;color:var(--gold);margin:0 0 10px}.site-footer nav a{display:block;color:var(--soft);font-size:14px;padding:3px 0}.footer-note{margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;gap:30px;color:var(--soft);font-size:13px}.footer-note p{margin:0}
.desktop-tools{position:fixed;right:18px;bottom:24px;z-index:5000;display:grid;gap:8px;width:112px}.desktop-tools a,.desktop-tools button{display:flex;align-items:center;justify-content:center;min-height:36px;padding:0 9px;border-radius:10px;border:1px solid var(--line);background:#18202D;color:var(--muted);font-size:12px;box-shadow:0 8px 18px rgba(0,0,0,.16)}.desktop-tools .tool-primary{background:var(--gold);color:#171B22;font-weight:700}.desktop-tools button{cursor:pointer}
.mobile-bottom{display:none;position:fixed;left:0;right:0;bottom:0;z-index:9000;min-height:60px;padding-bottom:env(safe-area-inset-bottom);background:#0C121B;border-top:1px solid var(--line);grid-template-columns:repeat(5,1fr)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px}
@media (max-width:1100px){.header-inner{gap:14px;padding:0 16px}.main-nav{gap:12px}.main-nav a{font-size:14px}.btn{padding:0 12px}.desktop-tools{display:none}.grid-4{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-grid{grid-template-columns:minmax(0,.9fr) minmax(340px,1.1fr)}}
@media (max-width:820px){.desktop-header,.desktop-category{display:none}.mobile-header{display:grid}.container,.article-wrap{width:min(100% - 32px,1280px)}.hero{padding:30px 0 48px}.hero-grid,.split,.split.wide,.feature-layout,.article-columns{grid-template-columns:1fr}.hero-copy{max-width:none}.media.hero-poster{aspect-ratio:16/8;min-height:220px;max-height:320px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.mosaic{grid-template-columns:1fr}.mosaic .wide-card{grid-row:auto}.info-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-note{flex-direction:column}.section{padding:62px 0}}
@media (max-width:560px){body{padding-bottom:64px}.mobile-bottom{display:grid}.mobile-header{grid-template-columns:76px minmax(0,1fr) 84px;padding:0 10px}.mobile-logo img{height:36px;max-width:118px}.mobile-register{font-size:12px;padding:0 9px}.menu-toggle{font-size:24px}.container,.article-wrap{width:min(100% - 26px,1280px)}.section{padding:52px 0}.section.compact{padding:42px 0}.section h1,.hero-copy h1,.page-hero h1{font-size:clamp(30px,9vw,36px)}.section h2{font-size:27px}.section p,.article-text p{font-size:16px}.lead,.page-hero p{font-size:17px!important}.hero-grid{gap:24px}.media.hero-poster{aspect-ratio:16/10;min-height:190px;max-height:280px}.media.topic{min-height:150px;max-height:190px}.media.feature{min-height:210px;max-height:280px}.grid-2,.grid-3,.feedback-grid{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{padding:20px}.card.emphasis{padding:22px}.topic-card{gap:10px}.topic-card h3{font-size:17px}.topic-card p{font-size:14px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px 18px}.footer-brand{grid-column:1/-1}.site-footer{padding-bottom:90px}.footer-note{gap:10px}.desktop-tools{display:none}}
@media (max-width:390px){.mobile-header{grid-template-columns:70px minmax(0,1fr) 80px;gap:4px}.mobile-logo img{max-width:110px}.mobile-register{padding:0 7px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card .card{padding:16px}.container,.article-wrap{width:min(100% - 22px,1280px)}}