:root{
  --bg:#2B2C30;--deep:#1A1B1E;--surface:#34363C;--surface-2:#3E4046;
  --title:#F2F2F4;--text:#D8D8DC;--muted:#A8A8B0;--soft:#888890;
  --gold:#D4B06A;--blue:#7A92B0;--warm:#F2F2F4;
  --border:rgba(242,242,244,.12);--accent-border:rgba(212,176,106,.48);
  --shadow:0 12px 28px rgba(0,0,0,.28);--radius:8px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--deep)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{color:inherit}
img{max-width:100%;display:block;object-fit:contain;object-position:center}
.shell{width:min(960px,calc(100% - 32px));margin:0 auto}
.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:var(--gold);color:var(--deep);padding:10px 14px;border-radius:6px}
.skip-link:focus{top:10px}
.top-strip{height:20px;position:fixed;top:0;left:0;right:0;z-index:120;background:var(--deep);color:var(--text);font-size:12px;border-bottom:1px solid var(--border)}
.top-strip-inner{height:20px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.text-trigger{border:0;background:transparent;padding:0 2px;min-height:20px;cursor:pointer;color:var(--warm)}
.site-header{height:54px;position:fixed;top:20px;left:0;right:0;z-index:119;background:var(--surface);border-bottom:1px solid var(--accent-border)}
.header-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-link{display:inline-flex;align-items:center;min-height:44px;max-width:55%;font-size:16px;font-weight:700;color:var(--title)}
.brand-image-slot{height:24px;display:flex;align-items:center;min-width:0}.brand-logo{height:24px;width:auto}
.brand-image-slot:empty{display:none}.brand-image-slot:not(:empty)+.brand-fallback{display:none}.brand-fallback{white-space:nowrap}
.header-actions{display:flex;align-items:center;gap:8px}.header-app-link,.menu-trigger{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border-radius:7px;white-space:nowrap}
.header-app-link{border:1px solid var(--accent-border);color:var(--title);background:var(--surface-2)}
.menu-trigger{border:1px solid var(--border);background:var(--deep);cursor:pointer}
.desktop-grid-nav{height:46px;position:fixed;top:74px;left:0;right:0;z-index:118;background:var(--deep);border-bottom:1px solid var(--border)}
.grid-nav-inner{height:46px;max-width:520px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:38px}
.grid-nav-item{position:relative;height:46px;min-width:62px;display:flex;align-items:center;justify-content:center;gap:7px;font-size:13px;color:var(--muted)}
.grid-symbol{width:28px;height:28px;border-radius:6px;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;color:var(--title);background:var(--surface)}
.grid-nav-item.is-current .grid-symbol{border:2px solid var(--gold);color:var(--gold)}
.grid-nav-item:hover,.grid-nav-item:focus-visible{color:var(--title)}
.site-main{padding-top:140px;min-height:70vh}.page-section{padding:34px 0}.page-section+.page-section{border-top:1px solid var(--border)}
.hero-compact{padding:34px 0 30px}.eyebrow{margin:0 0 8px;color:var(--gold);font-size:13px;letter-spacing:.06em}
h1,h2,h3{margin-top:0;color:var(--title);font-weight:720}h1{font-size:24px;line-height:1.3;margin-bottom:14px}h2{font-size:20px;line-height:1.4;margin-bottom:14px}h3{font-size:16px;line-height:1.45;margin-bottom:8px}
p{margin:0 0 14px}.lead{font-size:16px;line-height:1.8;color:var(--text);max-width:820px}.muted{color:var(--muted)}
.primary-btn,.secondary-btn{min-height:42px;padding:0 18px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;white-space:nowrap;transition:transform .15s ease,border-color .15s ease,background .15s ease}
.primary-btn{background:linear-gradient(135deg,var(--blue) 0%,var(--gold) 100%);color:var(--deep)}.secondary-btn{background:var(--surface);border:1px solid var(--gold);color:var(--title)}
.primary-btn:hover,.secondary-btn:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(212,176,106,.35);outline-offset:3px}
.action-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.space-top-16{margin-top:16px}.space-top-18{margin-top:18px}
.index-mini-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.index-mini-nav a{min-height:40px;display:flex;align-items:center;padding:0 13px;background:var(--surface);border:1px solid var(--border);border-radius:6px;color:var(--text)}
.vertical-feature{display:grid;grid-template-columns:minmax(180px,280px) 1fr;gap:24px;align-items:stretch}.vertical-media{height:200px;background:var(--surface);border-left:4px solid var(--gold);display:flex;align-items:center;justify-content:center;padding:10px}.vertical-media img{width:100%;height:100%}.vertical-copy{padding:10px 0;align-self:center}
.list-rows{display:grid;gap:0;border-top:1px solid var(--border)}.list-row{display:grid;grid-template-columns:72px 1fr auto;gap:16px;padding:18px 0;border-bottom:1px solid var(--border);align-items:center}.list-row .num{font-size:20px;color:var(--gold);font-variant-numeric:tabular-nums}.list-row .row-media{width:108px;height:74px;background:var(--surface);display:flex;align-items:center;justify-content:center;border-radius:6px;padding:6px}.list-row .row-media img{width:100%;height:100%}
.card-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}.info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:0 8px 20px rgba(0,0,0,.12)}.info-card.featured{border-color:var(--accent-border)}
.media-slot{background:var(--surface);border:1px solid var(--border);border-radius:8px;display:flex;align-items:center;justify-content:center;padding:10px;overflow:hidden}.media-slot:empty::after{content:"";width:40px;height:1px;background:var(--border)}.media-slot img{width:100%;height:100%}
.wide-media{height:210px}.small-media{height:150px}.banner-media{height:200px}.app-media{height:300px}.icon-media{width:64px;height:64px;margin:0 auto 14px;padding:8px}.icon-media img{width:48px;height:48px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}.section-head p{max-width:600px;margin:0;color:var(--muted)}
.three-phase{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}.phase{background:var(--surface);border-top:3px solid var(--blue);padding:18px;border-radius:0 0 8px 8px}.phase:nth-child(2){border-top-color:var(--gold)}.phase:nth-child(3){border-top-color:var(--muted)}
.status-list{display:grid;gap:12px}.status-item{display:grid;grid-template-columns:120px 1fr;gap:18px;align-items:start;background:var(--surface);border:1px solid var(--border);padding:15px 16px;border-radius:8px}.status-badge{min-height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--accent-border);border-radius:6px;color:var(--gold);font-weight:700}
.app-split{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:28px;align-items:center}.app-visuals{display:grid;grid-template-columns:1fr;gap:12px}
.feature-stack{display:grid;gap:14px}.feature-band{background:linear-gradient(90deg,var(--surface),var(--surface-2));border:1px solid var(--border);border-radius:8px;padding:18px 20px}.feature-band strong{color:var(--title);display:block;margin-bottom:6px}
.faq-preview{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-preview article,.faq-list article{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:17px}.faq-preview h3,.faq-list h2{margin-bottom:8px}.faq-list{display:grid;gap:12px}.faq-list h2{font-size:16px}
.brand-note{background:var(--deep);border:1px solid var(--border);border-left:4px solid var(--gold);padding:22px;border-radius:8px}
.cut-layout{display:grid;grid-template-columns:260px 1fr;gap:24px}.cut-rail{background:var(--surface);min-height:360px;border-left:8px solid var(--blue);padding:14px}.cut-rail .media-slot{height:200px}.cut-content{display:grid;gap:16px}.cut-content article{padding-bottom:16px;border-bottom:1px solid var(--border)}
.tile-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.tile-layout article{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px}.tile-layout .media-slot{height:170px;margin-bottom:14px}.tile-layout article:nth-child(3){grid-column:1 / -1}
.single-column{max-width:780px;margin:0 auto}.single-column section{padding:20px 0;border-bottom:1px solid var(--border)}
.memo-list{display:grid;gap:12px}.memo-item{display:grid;grid-template-columns:54px 1fr;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.memo-index{width:42px;height:42px;border-radius:6px;background:var(--gold);color:var(--deep);display:flex;align-items:center;justify-content:center;font-weight:800}
.method-steps{counter-reset:method;display:grid;gap:16px}.method-steps article{counter-increment:method;background:var(--surface);padding:18px 20px;border-left:3px solid var(--blue);border-radius:0 8px 8px 0}.method-steps article h2::before{content:counter(method,"0") " · ";color:var(--gold)}
.topic-list{display:grid;gap:14px}.topic-list article{display:grid;grid-template-columns:160px 1fr;gap:18px;background:var(--surface);border:1px solid var(--border);padding:18px;border-radius:8px}.topic-tag{font-size:13px;color:var(--gold);letter-spacing:.06em}
.center-cards{display:grid;gap:16px;max-width:760px;margin:0 auto}.center-cards article{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:24px}.center-cards .media-slot{height:190px;margin-bottom:16px}
.policy-stack{display:grid;gap:18px}.policy-stack section{background:var(--surface);border:1px solid var(--border);padding:20px;border-radius:8px}.policy-stack ul{margin:10px 0 0;padding-left:1.2em}.policy-stack li{margin:7px 0}
.help-map{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.help-map article{background:var(--surface);border-top:3px solid var(--gold);padding:18px;border-radius:0 0 8px 8px}
.contact-options{display:grid;gap:14px}.contact-options article{background:var(--surface);border:1px solid var(--border);padding:18px 20px;border-radius:8px}.contact-options strong{display:block;color:var(--gold);margin-bottom:6px}
.site-footer{background:var(--deep);color:var(--text);border-top:1px solid var(--accent-border);padding:34px 0 80px;font-size:13px}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}.footer-logo-slot:empty{display:none}.footer-logo{height:24px;width:auto}.footer-brand div{display:flex;flex-direction:column;line-height:1.4}.footer-brand strong{color:var(--title);font-size:15px}.footer-brand span{color:var(--muted)}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}.footer-links h2{font-size:13px;color:var(--gold);margin-bottom:8px}.footer-links a{display:block;color:var(--muted);padding:3px 0}.footer-links a:hover{color:var(--title)}.footer-note{max-width:800px;color:var(--muted);margin-bottom:8px}.footer-copy{color:var(--soft);margin:0}
.page-overlay{position:fixed;inset:0;z-index:180;background:rgba(0,0,0,.58);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,visibility .18s ease}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.panel-open{overflow:hidden}
.site-menu{position:fixed;left:16px;bottom:16px;z-index:200;width:280px;max-height:400px;background:var(--deep);border:1px solid var(--accent-border);border-radius:10px;box-shadow:var(--shadow);transform:translateY(24px);opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease;overflow:hidden}.site-menu.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}.panel-brand{display:flex;align-items:center;gap:9px}.panel-logo-slot:empty{display:none}.panel-logo{height:24px;width:auto}.panel-close{min-height:44px;padding:0 12px;border:1px solid var(--border);border-radius:6px;background:var(--surface);cursor:pointer}.menu-scroll{max-height:330px;overflow:auto;padding:10px 14px 16px}.menu-scroll section+section{margin-top:12px}.menu-scroll h2{font-size:13px;color:var(--gold);margin:0 0 6px}.menu-scroll a{display:grid;grid-template-columns:76px 1fr;gap:8px;padding:7px 0;border-bottom:1px solid rgba(242,242,244,.06)}.menu-scroll a strong{color:var(--title);font-size:13px}.menu-scroll a span{color:var(--muted);font-size:12px;line-height:1.45}
.search-panel{position:fixed;left:0;right:0;top:74px;z-index:195;visibility:hidden;opacity:0;pointer-events:none;transition:.18s ease}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{width:min(700px,calc(100% - 32px));margin:0 auto;background:var(--surface);border:1px solid var(--accent-border);border-radius:0 0 10px 10px;box-shadow:var(--shadow);padding-bottom:16px}.search-card .panel-head{padding:12px 16px}.search-card .panel-head p{margin:2px 0 0;font-size:12px;color:var(--muted)}.search-label{display:block;padding:14px 16px 6px;color:var(--muted);font-size:13px}.search-input{width:calc(100% - 32px);margin:0 16px;height:44px;border-radius:7px;border:1px solid var(--border);background:var(--deep);color:var(--title);padding:0 12px}.search-presets{display:flex;flex-wrap:wrap;gap:8px;padding:14px 16px 0}.search-presets a{min-height:40px;display:flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-radius:6px;background:var(--surface-2)}.search-empty{padding:12px 16px 0;margin:0;color:var(--muted);font-size:13px}
.mobile-bottom-nav{display:none}
@media(max-width:760px){
  .shell{width:calc(100% - 32px)}.desktop-grid-nav{display:none}.site-main{padding-top:94px;padding-bottom:62px}.brand-link{max-width:44%}.header-actions{gap:5px}.header-app-link,.menu-trigger{padding:0 10px;font-size:13px}.page-section{padding:28px 0}
  .vertical-feature,.app-split,.cut-layout,.topic-list article{grid-template-columns:1fr}.vertical-media{width:100%;height:200px}.list-row{grid-template-columns:48px 1fr}.list-row .row-media{grid-column:2;width:100%;height:120px}.card-grid-2,.faq-preview,.tile-layout,.help-map{grid-template-columns:1fr}.tile-layout article:nth-child(3){grid-column:auto}.three-phase{grid-template-columns:1fr}.status-item{grid-template-columns:1fr;gap:10px}.footer-links{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:84px}
  .mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:150;display:grid;grid-template-columns:repeat(4,1fr);height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--deep);border-top:1px solid var(--border)}.mobile-bottom-nav a{height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}.mobile-bottom-nav a.is-current{background:var(--gold);color:var(--deep);font-weight:800}.site-menu{left:6%;width:88%;bottom:calc(58px + env(safe-area-inset-bottom));max-height:400px}.search-panel{top:0;bottom:0;background:var(--deep);z-index:220;display:flex;align-items:flex-start}.search-card{width:100%;height:100%;border:0;border-radius:0;background:var(--deep);padding-top:20px}.search-input{background:var(--surface);color:var(--title)}.search-presets a{background:var(--surface)}
}
@media(max-width:430px){.footer-links{grid-template-columns:1fr}.top-strip-inner{font-size:11px}.brand-link{max-width:38%}.header-actions{gap:4px}.header-app-link,.menu-trigger{padding:0 8px}.list-row{gap:12px}.memo-item{grid-template-columns:44px 1fr}.memo-index{width:36px;height:36px}}