:root{
  --bg:#0C0B08;--bg-deep:#080706;--panel:#161410;--panel2:#1E1A14;
  --title:#F3E6C0;--text:#E4D6B0;--muted:#B89A58;--aux:#8A7040;
  --gold:#C9A227;--gold-bright:#E0C056;--gold-dark:#8A6E18;--copper:#8A5A2A;--warm:#F7EFD4;
  --border:rgba(201,162,39,.22);--border-strong:rgba(201,162,39,.50);--shadow:0 12px 28px rgba(0,0,0,.45);
  --max:980px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden;padding-top:72px;padding-bottom:0}
a{color:inherit;text-decoration:none}
button{font:inherit}
img{max-width:100%;display:block}
.skip-link{position:fixed;left:12px;top:-60px;z-index:2000;background:var(--gold-bright);color:#1A1408;padding:8px 12px;border-radius:6px}
.skip-link:focus{top:8px}
.museum-note{position:fixed;inset:0 0 auto 0;height:20px;background:#090806;color:var(--title);z-index:900;border-bottom:1px solid var(--border)}
.museum-note-inner{max-width:1160px;height:20px;margin:0 auto;padding:0 16px;display:flex;justify-content:space-between;align-items:center;font-size:12px}
.text-button,.menu-trigger,.full-menu button,.search-layer button{border:0;background:transparent;color:var(--title);cursor:pointer;min-height:44px;padding:0 12px}
.museum-note .text-button{min-height:20px;height:20px;padding:0 4px;font-size:12px}
.site-header{position:fixed;inset:20px 0 auto 0;height:52px;background:#0D0B08;border-bottom:1px solid var(--gold-dark);z-index:890}
.site-header-inner{height:52px;max-width:1160px;margin:0 auto;padding:0 16px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px}
.brand-logo{display:inline-flex;align-items:center;min-height:44px;max-width:180px;color:var(--title);font-size:16px;font-weight:700;letter-spacing:.03em}
.brand-logo img,.footer-brand img,.menu-brand img{height:24px;width:auto;object-fit:contain;object-position:center}
.brand-en{font-size:13px;color:var(--title);letter-spacing:.12em;white-space:nowrap}
.header-actions{justify-self:end;display:flex;align-items:center;gap:4px}
.header-app,.menu-trigger{display:inline-flex;min-height:44px;align-items:center;padding:0 10px;color:var(--title);font-size:14px}
.header-app:hover,.menu-trigger:hover,.text-button:hover{color:var(--gold-bright)}
.double-nav{height:64px;background:#0A0907;border-bottom:1px solid var(--border);display:flex;flex-direction:column;justify-content:center;gap:2px}
.double-nav-row{height:30px;max-width:var(--max);width:100%;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:30px;padding:0 16px}
.double-nav a{position:relative;display:inline-flex;align-items:center;min-height:30px;color:var(--text);font-size:13px;white-space:nowrap}
.double-nav a.is-current,.double-nav a:hover{color:var(--gold-bright)}
.double-nav a.is-current:after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--gold-bright)}
.site-main{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding:34px 0 70px;min-height:62vh}
.side-index{display:none}
h1,h2,h3{color:var(--title);margin:0 0 12px;line-height:1.3}
h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}
p{margin:0 0 14px}.lead{font-size:16px;color:var(--warm);max-width:760px}.eyebrow{font-size:12px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase;margin-bottom:8px}
.page-intro{padding:26px 0 22px;border-bottom:1px solid var(--border);margin-bottom:24px}.page-intro p{max-width:800px}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn-primary,.btn-secondary{min-height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:7px;font-size:14px;font-weight:700;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,#E0C056 0%,#C9A227 55%,#8A6E18 100%);color:#1A1408}
.btn-secondary{background:#11100D;border:1px solid var(--border-strong);color:var(--title)}
.btn-primary:hover,.btn-secondary:hover{transform:translateY(-1px);box-shadow:var(--shadow)}
a:focus-visible,button:focus-visible{outline:2px solid var(--gold-bright);outline-offset:3px}
.section-block{margin:38px 0}.section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}.section-head p{margin:0;color:var(--muted);font-size:13px}
.media-slot{height:176px;border:1px solid var(--border);border-radius:8px;background:#0A0907;display:flex;align-items:center;justify-content:center;overflow:hidden}
.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}
.media-slot.medium{height:160px}.media-slot.banner{height:200px}.media-slot.app-visual{height:300px}.media-slot.brand-visual{height:220px}
.numbered-scenes{display:grid;gap:14px}.scene-item{display:grid;grid-template-columns:120px 1fr;gap:16px;padding:16px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.scene-kicker{color:var(--gold-bright);font-weight:700}.scene-item .media-slot{grid-column:1/-1}
.note-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.note-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:18px}.note-card p:last-child{margin-bottom:0}
.flow-nodes{display:flex;flex-wrap:wrap;gap:12px}.flow-node{flex:1 1 210px;min-width:0;background:var(--panel);border-left:3px solid var(--gold);padding:16px;border-radius:0 8px 8px 0}.flow-node strong{display:block;color:var(--gold-bright);margin-bottom:6px}
.work-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.work-item{padding:18px;background:var(--panel2);border:1px solid var(--border);border-radius:8px}.work-item h3{margin-bottom:8px}
.period-stack{display:grid;gap:10px}.period-row{padding:16px 18px;background:linear-gradient(90deg,#161410,#0E0C09);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.period-row strong{display:block;color:var(--gold-bright);margin-bottom:4px}
.status-board{display:grid;gap:12px}.status-item{display:grid;grid-template-columns:100px 1fr;gap:16px;align-items:start;padding:14px 16px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.status-label{display:inline-flex;align-items:center;justify-content:center;min-height:32px;border:1px solid var(--border-strong);color:var(--title);border-radius:999px;font-size:13px;padding:0 12px}
.dark-band{background:#090806;border:1px solid var(--border-strong);box-shadow:var(--shadow);border-radius:9px;padding:22px}.app-band{display:grid;grid-template-columns:1.4fr .8fr;gap:24px;align-items:center}.app-icons{display:grid;grid-template-columns:1fr 64px;gap:10px;align-items:end}.app-icons .media-slot:last-child{height:64px}.app-icons .media-slot:last-child img{width:48px;height:48px}
.check-list,.memo-list,.method-list,.topic-list{display:grid;gap:10px}.check-item,.memo-item,.method-item,.topic-item{padding:16px 18px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.check-item strong,.memo-item strong,.method-item strong,.topic-item strong{display:block;color:var(--gold-bright);margin-bottom:6px}
.article-stack{display:grid;gap:18px}.article-card{padding:20px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.article-card p:last-child{margin-bottom:0}
.single-notes{display:grid;gap:14px}.single-note{padding:18px 20px;border-left:2px solid var(--gold);background:var(--panel);border-radius:0 8px 8px 0}.single-note .media-slot{margin-top:14px}
.timeline-wrap{display:grid;gap:18px}.timeline-segment{position:relative;padding:18px 18px 18px 46px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.timeline-segment:before{content:"";position:absolute;left:21px;top:24px;width:10px;height:10px;border-radius:50%;background:var(--gold-bright);box-shadow:0 0 0 4px rgba(201,162,39,.12)}
.timeline-segment:after{content:"";position:absolute;left:25px;top:36px;bottom:-19px;width:1px;background:var(--border-strong)}.timeline-segment:last-child:after{display:none}
.clause-list{display:grid;gap:14px}.clause{padding:16px 18px;background:#11100C;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.clause h2{font-size:17px}
.faq-list{display:grid;gap:12px}.faq-item{padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:8px}.faq-item h2{font-size:16px;color:var(--gold-bright)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-card{padding:18px;background:var(--panel);border:1px solid var(--border);border-radius:8px}
.brand-statement{display:grid;grid-template-columns:.9fr 1.1fr;gap:20px;align-items:start}.brand-points{display:grid;gap:12px}.brand-point{padding:16px;border:1px solid var(--border);background:var(--panel);border-radius:8px}
.site-footer{background:var(--bg-deep);border-top:1px solid var(--gold-dark);color:var(--text);font-size:13px;padding:30px 0 calc(24px + env(safe-area-inset-bottom))}.footer-inner{width:min(1120px,calc(100% - 32px));margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--border);margin-bottom:18px}.footer-brand>a{display:inline-flex;align-items:center}.footer-brand span{color:var(--title)}.footer-brand-name{font-size:16px;font-weight:700}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-grid h2{font-size:13px;color:var(--muted);margin-bottom:8px}.footer-grid a{display:block;min-height:28px;color:var(--text)}.footer-grid a:hover{color:var(--gold-bright)}.footer-note{margin-top:18px;color:var(--muted)}.footer-copy{color:var(--aux);margin-bottom:0}
.page-mask{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:1100}.page-mask[hidden]{display:none}.full-menu{position:fixed;left:0;right:0;bottom:0;z-index:1200;max-height:72vh;background:#0B0A07;border-top:1px solid var(--border-strong);transform:translateY(104%);visibility:hidden;pointer-events:none;transition:transform .24s ease,visibility .24s ease;overflow:auto;padding-bottom:env(safe-area-inset-bottom)}.full-menu.is-open{transform:translateY(0);visibility:visible;pointer-events:auto}.full-menu-head{position:sticky;top:0;background:#0B0A07;display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-bottom:1px solid var(--border);z-index:2}.menu-brand{display:flex;align-items:center;gap:10px}.full-menu-grid{width:min(1040px,calc(100% - 32px));margin:0 auto;padding:18px 0 28px;display:grid;grid-template-columns:1.2fr 1.2fr .8fr 1.3fr;gap:18px}.full-menu-grid h2{font-size:14px;color:var(--muted)}.full-menu-grid a{display:block;padding:8px 0;border-bottom:1px solid rgba(201,162,39,.12)}.full-menu-grid strong{display:block;color:var(--title);font-size:14px}.full-menu-grid span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:2px}.search-layer{position:fixed;z-index:1150;left:0;right:0;top:72px;visibility:hidden;pointer-events:none}.search-layer.is-open{visibility:visible;pointer-events:auto}.search-card{width:min(720px,calc(100% - 32px));margin:12px auto 0;background:#0D0B08;border:1px solid var(--border-strong);box-shadow:var(--shadow);border-radius:8px;padding:16px}.search-head{display:flex;justify-content:space-between;align-items:center}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-radius:999px;color:var(--title)}.search-presets a:hover{border-color:var(--gold-bright);color:var(--gold-bright)}
.layer-open{overflow:hidden}.mobile-bottom{display:none}
@media (min-width:1220px){.side-index{display:block;position:fixed;top:164px;left:calc(50% - 620px);width:148px;padding:10px 12px;border-left:1px solid var(--border);font-size:13px}.side-index section{margin-bottom:14px}.side-index h2{font-size:12px;color:var(--muted);margin-bottom:5px}.side-index a{display:block;padding:4px 0;color:var(--text)}.side-index a.is-current,.side-index a:hover{color:var(--gold-bright)}}
@media (max-width:760px){body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.museum-note-inner,.site-header-inner{padding-left:16px;padding-right:16px}.site-header-inner{grid-template-columns:1fr auto}.brand-en{display:none}.brand-logo{max-width:150px}.header-actions{gap:0}.header-app,.menu-trigger{padding:0 8px}.double-nav{display:none}.site-main{width:calc(100% - 32px);padding-top:26px}.scene-item,.note-columns,.work-grid,.app-band,.contact-grid,.brand-statement{grid-template-columns:1fr}.scene-item{gap:10px}.scene-item .media-slot{grid-column:auto}.status-item{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.app-icons{grid-template-columns:1fr 64px}.footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:calc(84px + env(safe-area-inset-bottom))}.full-menu-grid{grid-template-columns:1fr 1fr}.search-layer{inset:0;top:0;background:#080706;padding:74px 16px 70px}.search-card{width:100%;margin:0;min-height:calc(100vh - 144px);border-radius:0;border-color:var(--border);box-shadow:none}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:1000;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#0B0A07;border-top:1px solid var(--border-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;color:var(--title);font-size:13px}.mobile-bottom a.is-current{background:var(--gold);color:#1A1408;font-weight:700}.full-menu{z-index:1300}.page-mask{z-index:1250}}
@media (max-width:480px){.full-menu-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.app-icons{grid-template-columns:1fr}.app-icons .media-slot:last-child{width:64px}.media-slot.app-visual{height:280px}}