:root{
  --bg:#000000;--deep:#050505;--panel:#0B0B0B;--panel2:#121212;--hover:#1A1A1A;
  --white:#FFFFFF;--title:#F7F7F7;--text:#DDDDDD;--muted:#A5A5A5;--dim:#727272;--silver:#C7C7C7;--line:rgba(255,255,255,.12);--line-strong:rgba(255,255,255,.40);
  --shadow:0 18px 46px rgba(0,0,0,.48);--max:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
a:hover{color:var(--white)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--white);outline-offset:3px}
button,input{font:inherit}
button{color:inherit}
img{display:block;max-width:100%}
.site-header{position:relative;z-index:80}
.curtain-line,.screen-bar,.session-tabs{position:fixed;left:0;right:0;z-index:80;border-bottom:1px solid var(--line)}
.curtain-line{top:0;height:20px;background:#000;color:var(--silver);font-size:11px;letter-spacing:.08em}
.screen-bar{top:20px;height:64px;background:var(--panel2)}
.session-tabs{top:84px;height:42px;background:var(--deep)}
.header-inner,.section-inner,.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.curtain-inner,.screen-inner,.tabs-inner{height:100%;display:flex;align-items:center}
.curtain-inner{justify-content:space-between}
.micro-brand{display:flex;align-items:center;height:20px;white-space:nowrap}
.text-button,.icon-button,.drawer-trigger{border:0;background:transparent;cursor:pointer;min-height:44px;padding:0 12px}
.curtain-line .text-button{min-height:20px;padding:0 2px;font-size:11px;color:var(--silver)}
.screen-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:16px}
.brand-lockup{justify-self:start;display:flex;align-items:center;min-height:44px;min-width:70px}
.brand-logo{height:34px;width:auto;max-width:180px;object-fit:contain;object-position:left center}
.brand-fallback{font-size:22px;font-weight:700;color:var(--white);letter-spacing:.08em}
.drawer-trigger{justify-self:center;border:1px solid var(--line-strong);background:#111;padding:0 18px}
.app-link{justify-self:end;display:flex;align-items:center;min-height:44px;padding:0 10px;color:var(--white)}
.tabs-inner{gap:6px;overflow:hidden}
.tab-link{display:flex;align-items:center;min-height:30px;padding:3px 14px;color:var(--silver);white-space:nowrap}
.tab-link.is-current{background:var(--white);color:#000}
.site-main{padding-top:126px;min-height:70vh}
.page-shell{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:42px 0 72px}
.hero-visual,.content-visual{background:var(--deep);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-visual{min-height:180px;max-height:300px}
.hero-visual img{width:100%;height:auto;max-height:300px;object-fit:contain;object-position:center}
.content-visual{height:220px}
.content-visual img{width:100%;height:100%;object-fit:contain;object-position:center}
.tall-visual{height:420px;max-width:340px;margin:0 auto}
.tall-visual img{width:100%;height:100%;object-fit:contain}
.kicker{margin:22px 0 4px;color:var(--silver);font-size:13px;letter-spacing:.18em}
h1,h2,h3{margin:0;color:var(--title);line-height:1.25}
h1{font-size:clamp(28px,3.4vw,32px);letter-spacing:.02em}
h2{font-size:22px}
h3{font-size:18px}
.lead{max-width:820px;margin:18px 0 0;color:var(--text)}
.cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 16px;border-radius:6px;border:1px solid var(--line-strong);background:transparent;color:var(--white)}
.btn.primary{background:var(--white);color:#000;border-color:#fff}
.section-block{padding:44px 0;border-top:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:18px}
.section-head p{max-width:720px;margin:0;color:var(--muted)}
.cards{display:grid;gap:14px}
.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.cards.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.cards.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--panel);border:1px solid var(--line);padding:22px;min-width:0;border-radius:8px;box-shadow:var(--shadow)}
.card:hover{background:var(--panel2);border-color:var(--line-strong)}
.card p{margin:10px 0 0;color:var(--muted)}
.card .text-link{display:inline-flex;margin-top:18px;min-height:44px;align-items:center;color:var(--white);border-bottom:1px solid var(--line-strong)}
.number-card{display:grid;grid-template-columns:54px 1fr;gap:16px;align-items:start}
.number-card .num{font-size:28px;color:var(--white);font-weight:700;line-height:1}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.stack{display:grid;gap:14px}
.list-lines{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.list-lines li{display:grid;grid-template-columns:160px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.list-lines strong{color:var(--white)}
.status{display:inline-flex;align-items:center;min-height:32px;padding:4px 10px;border:1px solid var(--line-strong);color:var(--silver);font-size:13px}
.editorial-note{border-left:2px solid var(--white);padding-left:18px;color:var(--silver)}
.prose{max-width:920px}
.prose p{margin:0 0 18px}
.prose h2{margin:34px 0 12px}
.prose h3{margin:26px 0 10px}
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--panel);border:1px solid var(--line);padding:22px;border-radius:8px}
.faq-item h2{font-size:18px}
.faq-item p{margin:10px 0 0;color:var(--text)}
.note-box{background:var(--panel2);border:1px solid var(--line);padding:20px}
.site-footer{background:#000;border-top:1px solid var(--line);padding:46px 0 84px;color:var(--silver)}
.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:30px}
.footer-logo{height:32px;width:auto;object-fit:contain}
.footer-brand strong,.footer-brand span{display:block}.footer-brand span{font-size:12px;color:var(--muted);letter-spacing:.1em}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.footer-grid section{display:grid;gap:8px;align-content:start}
.footer-grid h2{font-size:14px;color:var(--white);margin-bottom:4px}
.footer-grid a{color:var(--silver);font-size:14px}
.rights-note{max-width:800px;margin:30px 0 0;color:var(--muted)}
.copyright-line{margin:10px 0 0;color:var(--dim);font-size:13px}
.site-overlay{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}
.drawer-open .site-overlay,.search-open .site-overlay{opacity:1;visibility:visible;pointer-events:auto}
.program-drawer{position:fixed;top:0;right:0;bottom:0;width:min(390px,86vw);background:#050505;z-index:100;border-left:1px solid var(--line-strong);transform:translateX(100%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;overflow-y:auto}
.drawer-open .program-drawer{transform:translateX(0);visibility:visible;pointer-events:auto}
.drawer-head{position:sticky;top:0;z-index:2;background:#050505;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-logo{height:28px;width:auto;object-fit:contain}.drawer-brand strong,.drawer-brand span{display:block}.drawer-brand span{font-size:11px;color:var(--muted)}
.drawer-stack{padding:12px;display:grid;gap:12px}
.drawer-card{background:var(--panel);border:1px solid var(--line);padding:16px}
.drawer-card h2{font-size:14px;margin-bottom:8px;color:var(--silver)}
.drawer-card a{display:block;padding:10px 0;border-top:1px solid var(--line)}
.drawer-card a:first-of-type{border-top:0}
.drawer-card strong,.drawer-card span{display:block}.drawer-card strong{font-size:15px;color:var(--white)}.drawer-card span{font-size:12px;color:var(--muted);margin-top:2px}
.search-layer{position:fixed;left:0;right:0;top:84px;z-index:95;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .18s ease,visibility .18s ease}
.search-open .search-layer{visibility:visible;opacity:1;pointer-events:auto}
.search-card{width:min(760px,calc(100% - 32px));margin:12px auto 0;background:var(--panel2);border:1px solid var(--line-strong);padding:20px;box-shadow:var(--shadow)}
.search-head{display:flex;justify-content:space-between;align-items:center}.search-label{display:block;margin:14px 0 8px;color:var(--muted)}
.search-visual{width:100%;min-height:48px;background:#000;border:1px solid var(--line-strong);color:var(--white);padding:0 14px}
.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.search-presets a{display:flex;align-items:center;min-height:44px;padding:7px 12px;border:1px solid var(--line);background:var(--panel)}
.mobile-bottom-nav{display:none}
@media (max-width:900px){
  .cards.four{grid-template-columns:repeat(2,minmax(0,1fr))}.cards.three{grid-template-columns:repeat(2,minmax(0,1fr))}.split{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:720px){
  .header-inner,.section-inner,.footer-inner,.page-shell{width:calc(100% - 32px)}
  .session-tabs{display:none}.site-main{padding-top:84px}
  .screen-inner{grid-template-columns:1fr auto 1fr;gap:8px}.brand-logo{height:30px;max-width:120px}.brand-fallback{font-size:19px}.drawer-trigger{padding:0 12px}.app-link{padding:0 2px;font-size:14px}
  .page-shell{padding:30px 0 92px}.section-block{padding:34px 0}.section-head{align-items:start;flex-direction:column}
  .cards.two,.cards.three,.cards.four{grid-template-columns:1fr}.list-lines li{grid-template-columns:1fr;gap:4px}
  .hero-visual{min-height:150px;max-height:300px}.content-visual{height:200px}.tall-visual{height:380px}
  .footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:104px}
  .mobile-bottom-nav{position:fixed;z-index:70;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#050505;border-top:1px solid var(--line-strong)}
  .mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;min-height:50px;font-size:13px;color:var(--silver)}.mobile-bottom-nav a.is-current{background:#fff;color:#000}
  .search-layer{top:84px}.search-card{width:calc(100% - 20px);margin-top:8px;background:#000}
}
@media (max-width:420px){.micro-brand{font-size:10px}.drawer-trigger{font-size:14px}.footer-grid{grid-template-columns:1fr}.card{padding:18px}}