:root{--paper:#f8f6ef;--paper-deep:#eeeee4;--ink:#244b3e;--text:#34483f;--muted:#667167;--line:#d9ded2;--tint:#e7ecdf;--serif:"Songti SC", "STSong", "SimSun", serif;--detail-width:388px;--header-height:41px;--panel-shadow:0 8px 28px #244b3e12;color:var(--text);background:var(--paper);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:14px;font-weight:400}*{box-sizing:border-box}body{margin:0}button,input,a,summary{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer;color:inherit;border:0}button,a,input,summary{outline-offset:4px}:focus-visible{outline:2px solid var(--ink)}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit;text-decoration:none}button svg{flex-shrink:0}button:active:not(:disabled){transform:translateY(1px)}button,a{transition:opacity .18s,transform .18s}p{line-height:1.8}.icon-button{background:0 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svg{opacity:0}.landmark-button:hover{background:var(--paper-deep)}.landmark-button:hover svg,.landmark-button.selected svg{opacity:1}.landmark-button.selected{background:var(--tint);color:var(--ink);font-weight:600}.landmark-button.selected:before{content:"";background:var(--ink);width:2px;position:absolute;top:10px;bottom:10px;left:0}.landmark-button.selected .landmark-number{color:var(--ink)}.no-results{color:var(--muted);padding:28px 8px}.no-results>svg{margin-bottom:16px}.no-results strong{color:var(--text);font-size:14px;font-weight:500;display:block}.no-results p{margin:8px 0;font-size:12px}.text-link{min-height:44px;color:var(--ink);text-underline-offset:4px;background:0 0;align-items:center;gap:12px;padding:0;font-size:13px;text-decoration:underline;display:flex}.sidebar-footer{border-top:1px solid var(--line);color:var(--muted);flex:none;padding:18px 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input{opacity:0;z-index:1;cursor:pointer;width:40px;height:44px;margin:0;position:absolute;right:0}.switch-track{pointer-events:none;background:#dce1d5;border:1px solid #879481;border-radius:4px;flex:none;width:36px;height:22px;position:relative}.switch-track:before{content:"";background:var(--paper);border:1px solid #879481;border-radius:2px;width:14px;height:14px;transition:transform .18s;position:absolute;top:3px;left:3px}.map-options input:checked+.switch-track{background:var(--ink);border-color:var(--ink)}.map-options input:checked+.switch-track:before{border-color:var(--paper);transform:translate(14px)}.map-options input:focus-visible+.switch-track{outline:2px solid var(--ink);outline-offset:4px}.map-options input:disabled+.switch-track{opacity:.4}.map-options .compare-layer{border-top:1px dashed #a7b29d;margin-top:12px;padding-top:18px}.compass{font:11px var(--serif);color:var(--ink);pointer-events:none;flex-direction:column;align-items:center;gap:3px;display:flex;position:absolute;top:98px;right:33px}.zoom-controls{background:var(--paper);border:1px solid var(--line);z-index:3;border-radius:4px;flex-direction:column;display:flex;position:absolute;bottom:68px;right:24px;overflow:hidden}.zoom-controls button{background:0 0;place-items:center;width:44px;height:44px;display:grid}.zoom-controls button+button{border-top:1px solid var(--line)}.zoom-controls button:hover{background:var(--tint)}.has-detail .zoom-controls{right:calc(var(--detail-width) + 40px)}.map-footer{color:#5d6b60;pointer-events:none;z-index:2;background:#f8f6efed;border-top:1px solid #d9ded27a;justify-content:space-between;align-items:center;gap:14px;min-height:44px;padding:8px 24px;font-size:10px;line-height:1.5;display:flex;position:absolute;bottom:0;left:0;right:0}.map-footer a{pointer-events:auto;align-items:center;min-height:24px;display:flex}.map-footer a:hover{text-underline-offset:3px;text-decoration:underline}.gesture-hint{font-size:11px}.building-note{margin-left:auto}.scene-labels{pointer-events:none;z-index:1;position:absolute;inset:0;overflow:hidden}.map-label{pointer-events:auto;white-space:nowrap;color:var(--ink);background:#f8f6eff5;border:1px solid #d2dacb;border-radius:2px;padding:4px 7px;font-size:11px;font-weight:500;line-height:1.4;position:absolute;top:0;left:0;box-shadow:0 2px 4px #244b3e0a}.map-label:hover{background:var(--tint)}.map-label.active{background:var(--ink);color:var(--paper);border-color:var(--ink);z-index:2}.road-label{white-space:nowrap;color:#506154;font-size:10px;font-family:var(--sans);letter-spacing:.3px;pointer-events:none;z-index:1;background:#f8f6efe6;border:1px solid #d2dacb;border-radius:2px;padding:2px 5.5px;font-weight:500;position:absolute;top:0;left:0;box-shadow:0 1px 3px #0000000f}.water-label{white-space:nowrap;color:#1e5a7d;font-size:10.5px;font-family:var(--serif);letter-spacing:.5px;pointer-events:none;z-index:1;background:#eef7fceb;border:1px solid #bad6e8;border-radius:2px;padding:2.5px 6.5px;font-weight:600;position:absolute;top:0;left:0;box-shadow:0 1.5px 4px #1e5a7d1f}.relic-label{white-space:nowrap;color:#7a5a22;font-size:10px;font-family:var(--serif);letter-spacing:.4px;pointer-events:auto;cursor:pointer;z-index:5;background:#fbf7efe6;border:1px solid #d9c9a6;border-radius:2px;padding:1.5px 5.5px;font-weight:600;transition:background .18s,color .18s,border-color .18s,box-shadow .18s;position:absolute;top:0;left:0;box-shadow:0 1px 3px #00000014}.relic-label:hover{color:#fff;z-index:24;background:#7a5a22;border-color:#7a5a22;box-shadow:0 3px 9px #7a5a2252}.relic-label.active{color:#fff;z-index:24;background:#7a5a22;border-color:#d4b16a;box-shadow:0 3px 10px #7a5a2266}.app[data-time=night] .relic-label{color:#e3c489;background:#1a2133e6;border-color:#4b3f26;box-shadow:0 1px 6px #0006}.app[data-time=night] .relic-label:hover,.app[data-time=night] .relic-label.active{color:#0d1a2a;background:#ffd88a;border-color:#ffd88a}.district-label{white-space:nowrap;color:#fcf8ee;font-size:13px;font-weight:700;font-family:var(--serif);letter-spacing:1.5px;pointer-events:auto;cursor:pointer;z-index:12;background:linear-gradient(135deg,#183326f5,#224637f5);border:1.5px solid #d4b16a;border-radius:4px;padding:5px 12px;transition:background .18s,border-color .18s,box-shadow .18s;position:absolute;top:0;left:0;box-shadow:0 4px 10px #00000040}.district-label:hover{z-index:25;background:#2d5b47;border-color:#fae09c;box-shadow:0 6px 16px #00000059}.town-label{white-space:nowrap;color:#1e352b;font-size:11px;font-weight:600;font-family:var(--serif);letter-spacing:.6px;pointer-events:auto;cursor:pointer;z-index:10;background:#ffffffe8;border:1px solid #b6ccbd;border-radius:3px;padding:3.5px 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var(--line);flex:none;align-items:center;margin:0 24px;display:flex}.detail-navigation button{min-height:44px;color:var(--muted);background:0 0;flex:1;padding:8px 0;font-size:12px}.detail-navigation button:hover,.detail-navigation button:focus-visible{color:var(--ink);background:var(--tint)}.detail-navigation button+button{border-left:1px solid var(--line)}.detail-scroll{overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#b9c4af transparent;min-height:0;overflow-y:auto}.detail-scroll:focus-visible{outline-offset:-3px}.photo-gallery{padding:20px 24px 0}.photo-gallery figure{margin:0}.photo-preview{aspect-ratio:3/2;background:var(--paper-deep);border-radius:2px;width:100%;padding:0;display:block;position:relative;overflow:hidden}.photo-preview>img{object-fit:cover;width:100%;height:100%;display:block}.photo-preview:active{transform:none}.photo-badge,.photo-enlarge{background:var(--ink);color:var(--paper);pointer-events:none;border-radius:2px;padding:5px 8px;font-size:10px;position:absolute;bottom:10px}.photo-badge{letter-spacing:1px;left:10px}.photo-enlarge{background:var(--paper);color:var(--ink);right:10px}.photo-caption{justify-content:space-between;align-items:baseline;gap:12px;margin:12px 0 0;font-size:12px;line-height:1.7;display:flex}.photo-caption>span:last-child{letter-spacing:1px;color:var(--muted);white-space:nowrap;font:11px Georgia,serif}.photo-attribution summary{cursor:pointer;min-height:44px;color:var(--muted);align-items:center;gap:8px;font-size:11px;list-style:none;display:flex}.photo-attribution summary::-webkit-details-marker{display:none}.photo-attribution summary:before{content:"+";font-size:15px;font-weight:400}.photo-attribution[open] summary:before{content:"−"}.photo-credit{color:var(--muted);overflow-wrap:anywhere;font-size:11px;line-height:1.8;display:block}.photo-credit>span{display:block}.photo-credit 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14px;padding:0;list-style:none}.guide-sources li{margin:0 0 10px;font-size:12px;line-height:1.8}.guide-sources a,.geography-link{text-underline-offset:4px;text-decoration:underline}.guide-sources p{color:var(--muted);margin:0 0 14px;font-size:11px;line-height:1.8}.geography-link{min-height:44px;color:var(--muted);align-items:center;font-size:12px;display:flex}.photo-dialog{color:var(--paper);overscroll-behavior:contain;background:#172c23;border:1px solid #536451;border-radius:4px;width:min(1100px,100vw - 48px);max-width:100%;max-height:calc(100dvh - 40px);padding:0}.photo-dialog::backdrop,.help-dialog::backdrop{background:#142b22bd}.photo-dialog-inner{padding:18px 24px 22px}.photo-dialog header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}.photo-dialog header strong{font-size:14px;font-weight:500}.photo-dialog-close{min-height:44px;color:var(--paper);white-space:nowrap;background:#ffffff12;border-radius:3px;padding:0 14px;font-size:12px}.photo-dialog :focus-visible{outline-color:var(--paper)}.photo-stage{justify-content:center;align-items:center;min-height:100px;display:flex}.photo-stage img{object-fit:contain;width:auto;max-width:100%;height:auto;max-height:calc(100dvh - 285px);display:block}.photo-dialog .photo-credit{color:#c5cfc3}.photo-dialog-caption{justify-content:space-between;align-items:center;gap:16px;margin:12px 0;font-size:13px;line-height:1.7;display:flex}.photo-paging{font-variant-numeric:tabular-nums;flex:none;align-items:center;gap:14px;font-size:12px;display:flex}.photo-paging button{width:44px;height:44px;color:var(--paper);background:#ffffff12;border-radius:3px;font-size:18px}.photo-paging button:hover,.photo-dialog-close:hover{background:#ffffff25}.photo-unavailable{place-content:center;min-height:150px;padding:24px;font-size:13px;line-height:1.8;display:grid}.help-dialog{border:1px solid var(--line);background:var(--paper);width:min(600px,100vw - 32px);max-height:calc(100dvh - 40px);color:var(--text);overscroll-behavior:contain;border-radius:4px;padding:0}.help-heading{justify-content:space-between;align-items:center;gap:14px;padding:16px 24px 0;display:flex}.help-content{padding:8px 32px 0}.help-content>h2{font:600 30px/1.5 var(--serif);color:var(--ink);margin:0 0 8px}.help-lead{color:var(--muted);margin:0 0 24px;font-size:13px}.gesture-grid{border-top:1px solid var(--line);border-bottom:1px solid var(--line);grid-template-columns:1fr 1fr;display:grid}.gesture-grid section{padding:24px 16px 20px 0}.gesture-grid section:nth-child(2n){border-left:1px solid var(--line);padding-left:24px}.gesture-grid section:nth-child(n+3){border-top:1px solid var(--line)}.gesture-grid svg{color:var(--ink);width:24px;height:24px}.gesture-grid h3{color:var(--ink);margin:10px 0 6px;font-size:14px;font-weight:500}.gesture-grid p{color:var(--muted);margin:0;font-size:12px;line-height:1.9}.help-shortcuts{color:var(--muted);margin:18px 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var(--serif);color:var(--ink)}.loading>span:last-child{font-variant-numeric:tabular-nums;font-size:12px}.loading progress{width:160px;height:3px;accent-color:var(--ink);border:0;margin-top:6px}.loading progress::-webkit-progress-bar{background:var(--line)}.loading progress::-webkit-progress-value{background:var(--ink)}.error-state{text-align:center;padding:32px}.error-state strong{font:500 25px var(--serif);color:var(--ink)}.error-state p{max-width:360px;font-size:14px}.error-state button{background:var(--ink);min-height:44px;color:var(--paper);border-radius:3px;padding:0 20px}.error-state a{align-items:center;min-height:44px;font-size:12px;text-decoration:underline;display:flex}.warning{color:#77582c;z-index:8;background:#f6eddb;border:1px solid #c6b99a;max-width:calc(100% - 48px);padding:12px 16px;font-size:12px;line-height:1.8;position:absolute;bottom:48px;left:24px}.mobile-explore,.mobile-close,.sidebar-scrim{display:none}@keyframes 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0}.sidebar.open{animation:.18s ease-out panel-in;display:flex}.search input{font-size:16px}.sidebar-scrim{z-index:29;background:#142b2260;display:block;position:fixed;inset:0}.sidebar-head{padding:25px 24px 20px}.sidebar-head h1{font-size:23px}.mobile-close{display:grid;position:absolute;top:12px;right:12px}.mobile-explore{left:20px;bottom:calc(60px + env(safe-area-inset-bottom));background:var(--ink);height:48px;color:var(--paper);z-index:5;border-radius:3px;align-items:center;gap:12px;padding:0 17px;font-size:13px;display:flex;position:absolute}.explore-count{letter-spacing:1px;border-left:1px solid #f8f6ef4d;margin-left:4px;padding-left:12px;font-size:11px}.scene-toolbar{top:20px;left:20px;right:20px}.compass{top:90px;right:28px}.zoom-controls,.has-detail .zoom-controls{right:20px;bottom:calc(60px + env(safe-area-inset-bottom));flex-direction:row}.zoom-controls button+button{border-top:0;border-left:1px solid var(--line)}.detail-panel{top:auto;left:20px;right:20px;bottom:calc(122px + env(safe-area-inset-bottom));width:auto;max-width:none;max-height:min(58dvh,100% - 206px)}.detail-heading{padding:8px 20px 14px}.detail-heading h2{font-size:25px}.detail-title-row{margin:1px 0 8px}.exhibit-number{font-size:25px}.detail-subtitle{font-size:12px}.detail-navigation{margin:0 20px}.photo-gallery{padding:18px 20px 0}.photo-preview{aspect-ratio:16/9}.detail-copy{padding:20px 20px 26px}.map-footer{padding:10px 20px calc(10px + env(safe-area-inset-bottom));min-height:44px;font-size:10px}.gesture-hint{display:none}.map-footer a{margin-left:auto}.warning{max-width:calc(100% - 40px);bottom:118px;left:20px}}@media (width<=540px){.header{padding:0 16px}.wordmark{gap:10px}.wordmark-name{font-size:18px}.help-button{width:44px}.help-button span{display:none}.scene-toolbar{gap:8px;top:16px;left:14px;right:14px}.view-switch{padding:2px}.view-switch button{min-height:44px;padding:0 11px;font-size:11px}.reset-button{width:44px;height:50px;padding:0}.control-label{display:none}.layers-button{gap:6px;height:50px;padding:0 11px;font-size:12px}.compass{top:80px;right:23px}.map-options{width:276px;max-height:calc(100dvh - 190px)}.detail-panel{left:14px;right:14px;bottom:calc(116px + env(safe-area-inset-bottom));max-height:min(58dvh,100% - 196px)}.detail-heading h2{font-size:24px}.detail-heading,.photo-gallery{padding-left:18px;padding-right:18px}.detail-heading .detail-top{font-size:10px}.detail-copy{padding-left:18px;padding-right:18px}.detail-navigation{margin:0 18px}.detail-title-row{gap:10px}.exhibit-number{font-size:24px}.mobile-explore{left:14px;bottom:calc(56px + env(safe-area-inset-bottom));gap:9px;padding:0 13px}.zoom-controls,.has-detail .zoom-controls{right:14px;bottom:calc(56px + env(safe-area-inset-bottom))}.map-footer{padding-left:14px;padding-right:14px}.map-label{padding:4px 6px;font-size:10px}.road-label{font-size:9px}.photo-dialog{width:calc(100vw - 24px);max-height:calc(100dvh - 24px)}.photo-dialog-inner{padding:12px 16px 18px}.photo-dialog header strong{font-size:12px}.photo-dialog-caption{flex-wrap:wrap;gap:10px;font-size:12px}.photo-paging{justify-content:space-between;gap:12px;width:100%}.photo-stage img{max-height:calc(100dvh - 330px)}.help-content{padding:8px 22px 0}.help-heading{padding:12px 14px 0 22px}.help-heading .eyebrow{letter-spacing:1px;font-size:10px}.help-content>h2{font-size:25px}.help-dialog footer{padding:10px 22px 22px}.gesture-grid section:nth-child(2n){padding-left:16px}.help-shortcuts{font-size:10px}}@media (height<=640px){:root{--header-height:32px}.wordmark-name{font-size:16px}.wordmark small{font-size:8px}.seal{width:22px;height:25px;font-size:20px}.detail-panel{max-height:none;top:80px;bottom:52px}.detail-heading{padding-top:0;padding-bottom:10px}.detail-top{min-height:36px}.detail-top .icon-button{height:36px}.detail-title-row{margin:0}.detail-heading h2{font-size:23px}.detail-heading .detail-subtitle{display:none}.detail-navigation button{min-height:38px}.photo-preview{aspect-ratio:2}.map-options{max-height:calc(100dvh - 164px)}.sidebar-head{padding-top:18px;padding-bottom:14px}.sidebar-head h1{margin-top:6px;font-size:21px}.sidebar-head p,.sidebar-footer small{display:none}.search-block{margin-bottom:14px}.sidebar-footer{padding-top:12px;padding-bottom:12px}}@media (height<=640px) and (width<=900px) and (width>=541px){.detail-panel{width:352px;inset:82px 20px 16px auto}.detail-heading{padding-left:18px;padding-right:18px}.detail-title-row{gap:10px}.detail-navigation{margin:0 18px}.has-detail .zoom-controls{right:392px}.map-footer{justify-content:flex-start}.map-footer a{margin-left:0;font-size:9px}}@media (height<=640px) and (width<=540px){.detail-panel{top:78px;bottom:112px}.detail-title-row h2{font-size:20px}.detail-top{font-size:10px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.app[data-time=night]{--paper:#111e30;--paper-deep:#192a3e;--ink:#f3cf92;--text:#d6e2ee;--muted:#9cafc3;--line:#304158;--tint:#24354a;--panel-shadow:0 8px 28px #0004;color:var(--text);--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}.app[data-time=night] .scene-area{background:#0a1225}.app[data-time=night] .search{background:var(--paper-deep)}.app[data-time=night] .map-label{color:#edcc99;background:#132237ed;border-color:#3d4c60;box-shadow:0 2px 8px #0003}.app[data-time=night] .map-label.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}.app[data-time=night] .road-label{color:#a6bace;background:#132237d9;border-color:#2e445b;box-shadow:0 1px 6px #00000059}.app[data-time=night] .water-label{color:#8ec5eb;background:#0d2238e8;border-color:#214b73;box-shadow:0 2px 8px #00000073}.app[data-time=night] .map-footer{color:var(--muted);border-color:var(--line);background:#111e30ed}.app[data-time=night] .compass svg path:first-child{fill:#f3cf92}.app[data-time=night] .compass svg path:last-child{fill:#687d9c}.app[data-time=night] .loading,.app[data-time=night] .error-state{background:#111e30f5}.app[data-time=night] .switch-track{background:#263c53;border-color:#637891}.app[data-time=night] .photo-dialog,.app[data-time=night] .help-dialog{color:var(--text);background:var(--paper)}@media (width<=540px){.time-switch{position:absolute;top:62px;left:0}.time-switch button{min-width:57px;padding:0 8px}}@media (height<=640px) and (width<=540px){.detail-panel{top:136px}}.perf-stats{color:#ffe7b0;font:600 11px/1.5 var(--sans);letter-spacing:.3px;pointer-events:none;z-index:30;background:#0d1a2ae6;border-radius:3px;padding:4px 9px;position:absolute;bottom:14px;right:16px}