/* Shared light navigation and footer; page content and dark scenes stay with their owners. */
:root[data-theme=light]{--shell-ink:#302d29;--shell-gold:#b58e54;--shell-line:#c8b58f;--shell-paper:#efe1d7}
:root[data-theme=light] :is(.site-nav,.nav){position:absolute;inset:18px auto auto 50%;translate:-50% 0;transform:none!important;animation:none!important;z-index:40;width:68%;max-width:none;height:clamp(42px,3.7vw,110px);padding:0;display:flex;align-items:center;gap:clamp(10px,1.3vw,42px);background:none;border:0;box-shadow:none;color:var(--shell-ink)}
:root[data-theme=light] :is(.site-nav,.nav) .nav-capsule{position:static;display:flex;flex:1;align-items:center;justify-content:space-between;gap:2.2vw;padding:0;height:100%;background:none;border:0;border-radius:0;box-shadow:none;backdrop-filter:none}
:root[data-theme=light] :is(.site-nav,.nav) .brand{font:700 var(--type-brand)/1.2 'Songti SC','STSong',serif;color:var(--shell-ink);white-space:nowrap;text-shadow:none;-webkit-text-stroke:0;letter-spacing:.02em}
:root[data-theme=light] :is(.site-nav,.nav) nav{position:static;display:flex;align-items:center;justify-content:space-evenly;gap:clamp(24px,3.2vw,100px);padding:0;background:none;border:0;white-space:nowrap}
:root[data-theme=light] :is(.site-nav,.nav) nav a{font-size:var(--type-nav);color:var(--shell-ink);text-decoration:none}
:root[data-theme=light] :is(.site-nav,.nav) nav a:hover{text-decoration:underline;text-underline-offset:.35em}
:root[data-theme=light] :is(.site-nav,.nav) .nav-actions{position:static;display:flex;align-items:center;gap:clamp(6px,.6vw,20px);height:100%}
:root[data-theme=light] :is(.site-nav,.nav) .nav-actions>.button{order:0;display:inline-flex;align-items:center;justify-content:center;min-height:44px;height:90%;padding:0 2.25vw;white-space:nowrap;font-size:var(--type-button)}
:root[data-theme=light] :is(.site-nav,.nav) .theme-toggle{order:1;position:static;transform:none!important;translate:none!important;top:auto;right:auto;align-self:center;width:clamp(44px,3.5vw,100px);height:clamp(44px,3.5vw,100px);padding:11px;background:transparent;border:0;border-radius:50%;box-shadow:none;color:var(--shell-ink)}
:root[data-theme=light] :is(.site-nav,.nav) .theme-toggle svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.5}
:root[data-theme=light] :is(.site-nav,.nav) .theme-toggle:hover{background:#a18b6420}
:root[data-theme=light] :is(.site-nav,.nav) .theme-toggle-mobile{display:none}
:root[data-theme=light] :is(.site-nav,.nav) .menu-toggle{display:none;order:2}
:root[data-theme=light] :is(.site-nav,.nav).scrolled{position:fixed;top:0;left:0;translate:none;right:0;width:100%;height:clamp(62px,4.7vw,130px);padding:8px 12%;background:#f3e6d8ed;border-bottom:1px solid #c6ba9e65;backdrop-filter:blur(16px);box-shadow:none}
:root[data-theme=light] .museum-footer{position:relative;width:100%;max-width:none;min-height:0;padding:clamp(28px,3vw,100px) 7% clamp(20px,2vw,70px);background:var(--shell-paper);color:#56534e;border-top:1px solid #b5a27e80;text-align:left}
:root[data-theme=light] .museum-footer .footer-grid{width:100%;max-width:none;display:grid;grid-template-columns:1fr 1.3fr 1fr;align-items:center;gap:3vw;margin:0;padding:0}
:root[data-theme=light] .museum-footer .brand{font:700 var(--type-brand)/1.3 'Songti SC','STSong',serif;color:#37332d;text-decoration:none}
:root[data-theme=light] .museum-footer .footer-grid p{font-size:var(--type-footer);line-height:1.9;margin:0;border-left:1px solid #9e8c6850;padding-left:2vw}
:root[data-theme=light] .museum-footer .health-notice{margin:2vw 0 0;padding-top:1.5vw;border-top:1px solid #9e8c6840;font-size:var(--type-footer);line-height:1.8;color:#56534e;text-align:center}
@media(max-width:1023px){
 :root[data-theme=light] :is(.site-nav,.nav){width:94%;top:12px;height:48px;gap:5px}
 :root[data-theme=light] :is(.site-nav,.nav) .nav-capsule{gap:0;flex:1}
 :root[data-theme=light] :is(.site-nav,.nav) .brand{font-size:23px}
 :root[data-theme=light] :is(.site-nav,.nav) .nav-actions>.button{min-height:40px;height:40px;padding:0 16px;font-size:13px}
 :root[data-theme=light] :is(.site-nav,.nav) .theme-toggle{width:40px;height:44px;padding:10px}
 :root[data-theme=light] :is(.site-nav,.nav) .menu-toggle{display:grid;place-items:center;min-width:44px;width:44px;height:44px;border:0;padding:10px;border-radius:50%;background:transparent;color:#35312b;font-size:23px}
 :root[data-theme=light] :is(.site-nav,.nav) .menu-toggle svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5}
 :root[data-theme=light] :is(.site-nav,.nav) nav{display:none;position:absolute;top:56px;left:0;width:100%;padding:20px;background:#eeeae2f5;border:1px solid #b1a08080;border-radius:16px;box-shadow:0 12px 30px #42382020;white-space:normal}
 :root[data-theme=light] :is(.site-nav,.nav) nav.open{display:grid;gap:4px}
 :root[data-theme=light] :is(.site-nav,.nav) nav a{font-size:17px;min-height:44px;padding:10px 15px}
 :root[data-theme=light] :is(.site-nav,.nav).scrolled{padding:6px 3%;height:60px}
 :root[data-theme=light] .museum-footer .footer-grid{grid-template-columns:1fr;gap:18px}
 :root[data-theme=light] .museum-footer .footer-grid p{font-size:13px;border-left:0;border-top:1px solid #9e8c6840;padding:14px 0 0}
 :root[data-theme=light] .museum-footer .health-notice{font-size:12px;margin-top:20px;padding-top:18px;text-align:left}
}
@media(max-width:360px){:root[data-theme=light] :is(.site-nav,.nav) .brand{font-size:20px}:root[data-theme=light] :is(.site-nav,.nav) .nav-actions>.button{padding:0 10px}}
/* Shared shells already use viewport units; exclude them from inner-page canvas zoom. */
:root[data-theme=light].wide-page .page-scale-nav,
:root[data-theme=light].wide-page .page-scale-surface:has(> .museum-footer){zoom:1;width:100%}
:root[data-theme=light].wide-page .page-scale-nav .nav.scrolled{left:0;right:0;width:100vw;max-width:none}

/* One sampled champagne palette for the shared call to action. */
:root[data-theme=light]{--cta-top:#edc89e;--cta-bottom:#cc9a68;--cta-border:#bc955f;--cta-ink:#49331e}
:root[data-theme=light] :is(.site-nav,.nav) .nav-actions>.button{background:linear-gradient(180deg,var(--cta-top),var(--cta-bottom));border:1px solid var(--cta-border);color:var(--cta-ink);font-family:'Songti SC','STSong',serif;font-weight:600;box-shadow:inset 0 1px 2px #fff9,0 2px 3px #7e613c26;text-shadow:none}

:root[data-theme=light] .button.gold{background:linear-gradient(180deg,var(--cta-top),var(--cta-bottom));border-color:var(--cta-border);color:var(--cta-ink);box-shadow:inset 0 1px 2px #fff9,0 2px 3px #7e613c26}