:root{--navy:#061d28;--ink:#142c35;--cream:#f2efdf;--gold:#e8c788;--teal:#69c8bb;--muted:#a6bbc0;--line:#d0e8e422;--serif:'Songti SC','Noto Serif CJK SC','STSong',serif}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;background:var(--navy);color:#f7f5eb;font-family:'PingFang SC','Microsoft YaHei',Arial,sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;background:transparent;border:0;padding:0;transition:color .2s,background .2s,opacity .2s}a{color:inherit;text-decoration:none}button:hover,a:hover{color:var(--gold)}button:focus-visible,a:focus-visible{outline:2px solid var(--gold);outline-offset:6px}button:disabled{opacity:.3;cursor:default}button[hidden],[hidden]{display:none!important}#experience{height:100svh;min-height:700px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 68% 43%,#214754,#061d28 80%)}#stage{position:absolute;inset:0 0 50px}#stage 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#809b87}.brief-tags{display:flex;gap:7px;flex-wrap:wrap;margin:17px 0}.brief-tags span{font-size:11px;padding:6px 9px;border:1px solid #d2ddd3;color:#587967}.brief-body .source-text{font-size:10px;line-height:1.8;color:#849788}.brief-body button{width:100%;display:flex;justify-content:space-between;padding:16px 0 0;border-top:1px solid #dce4db;color:#245e51;font-size:13px;margin-top:18px}.brief-provenance{padding-top:33px;margin-top:35px;border-top:1px solid #cad9cd}.brief-provenance h3{font:25px var(--serif);margin:0 0 15px}.brief-provenance p{font-size:12px;line-height:1.85;color:#658074;max-width:960px}#tour{position:absolute;left:50%;transform:translateX(-50%);bottom:254px;background:#e9dfc4;color:#1f3e45;z-index:50;width:490px;max-width:92vw;padding:16px 21px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 10px 50px #00192366}#tour small{font:9px Arial;letter-spacing:1.5px;display:block;color:#798470;margin-bottom:6px}#tour strong{font-size:13px;font-weight:500}.tour-controls{display:flex;gap:12px;margin-left:15px}.tour-controls button{font-size:20px;min-width:22px}#tour-progress{position:absolute;height:3px;left:0;bottom:0;background:#508e75;width:0}#gallery-dialog{background:#0b2935;border:1px solid #d8d6b82a;color:#eceddc;max-width:94vw;width:1450px;max-height:95svh;padding:22px;overflow:auto}#gallery-dialog::backdrop{background:#031320ed;backdrop-filter:blur(12px)}.gallery-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:17px}.gallery-head small{font:9px Arial;letter-spacing:2px;color:#d1bf8f}.gallery-head h3{font:23px var(--serif);margin:7px 0 0}.gallery-head button{flex-shrink:0}#gallery-image{display:block;max-width:100%;width:100%;max-height:76svh;object-fit:contain;background:#061d28}#gallery-note{font-size:11px;line-height:1.8;color:#8caaa9;margin:14px 0 0}#toast{position:fixed;top:118px;left:50%;transform:translateX(-50%);background:#e8dfc9;color:#14333c;padding:14px 22px;z-index:100;font-size:13px;display:none;max-width:88vw;line-height:1.7}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}[data-view=station] .screen-shade{background:linear-gradient(90deg,#041a28f0,#061d28aa 24%,#061d2800 50%),linear-gradient(180deg,#041a288c,transparent 24%,transparent 62%,#041923e6 87%)}[data-view=station] .station-dock{bottom:67px}[data-view=station] #dock-caption{color:#cab88d}
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@media(max-height:850px) and (min-width:1000px){.intro-panel{top:19%}.intro-panel h1{font-size:47px;margin:19px 0}.intro-text{font-size:13px;line-height:1.8}.network-metrics{margin:24px 0;gap:24px}.intro-hint{display:none}#station-intro{top:113px}#station-intro h1{font-size:33px}.back-link{margin-bottom:21px}.station-count{margin-top:14px}#station-summary{font-size:12px;line-height:1.75}.station-metrics{margin:19px 0}.station-metrics strong{font-size:22px}.station-selection{margin-top:10px}.text-link{padding:9px 0}.tile-image{height:63px}.dock-heading{margin-bottom:11px}.camera-row{bottom:219px}.map-caption{bottom:217px}#detail-card{bottom:239px;width:230px;padding:16px 18px}#detail-card h3{font-size:23px}#tour{bottom:220px}}
@media(max-width:1100px){.topbar{gap:15px;margin:0 25px}.identity{font-size:14px;letter-spacing:1px}.identity small{font-size:8px;letter-spacing:1.8px}.topbar nav{gap:20px}.header-tools{gap:14px;margin-left:10px}.film-button{font-size:12px;padding:9px 10px}.intro-panel{left:35px;width:260px}.intro-panel h1{font-size:45px}.intro-text{font-size:13px;max-width:235px}.network-metrics{gap:17px}.network-metrics strong{font-size:25px}.network-metrics small{font-size:9px}.eyebrow{font-size:8px;letter-spacing:1.7px}.station-dock{left:35px;right:25px}.station-track{gap:10px}.tile-image{height:69px}.tile-caption{font-size:11px}.bottombar{padding:0 25px;font-size:9px}.bottombar .interaction-note{display:none}#station-intro{width:255px}#station-intro h1{font-size:35px}#station-summary{max-width:230px;font-size:12px}.station-metrics{gap:7px;max-width:250px}.station-metrics strong{font-size:20px}.station-metrics span{font-size:9px}.station-selection{font-size:9px;max-width:220px}#detail-card{width:215px;right:25px;padding:16px}#detail-card h3{font-size:22px}#detail-card p{font-size:11px}.camera-row{bottom:226px}.camera-row button{font-size:11px;padding:9px 15px}.map-caption{bottom:218px}.map-caption>div{font-size:18px}#tour{bottom:223px}}
@media(max-width:760px){#experience{min-height:730px}.topbar{height:108px;margin:0 20px;align-items:flex-start;padding-top:17px;flex-wrap:wrap}.identity{font-size:13px;gap:10px}.seal{height:32px;width:31px;font-size:14px;line-height:16px;padding:3px}.identity small{font-size:7px;letter-spacing:1.6px;margin-top:6px}.header-tools{margin:0;gap:15px}.film-button{padding:6px 9px;font-size:10px}.icon-btn{font-size:23px;width:24px;height:29px}.topbar nav{position:absolute;bottom:0;left:0;right:0;height:42px;justify-content:center;gap:40px}.nav-item{font-size:12px}.nav-item span{font-size:8px}.intro-panel{left:23px;top:146px;width:250px}.intro-panel h1{font-size:37px;letter-spacing:3px;line-height:1.25;margin:15px 0 16px}.intro-panel .eyebrow{font-size:7px;letter-spacing:1.4px}.intro-text{font-size:11px;line-height:1.9;max-width:228px}.intro-text br:nth-child(2){display:none}.network-metrics{gap:24px;margin:21px 0}.network-metrics strong{font-size:24px}.network-metrics small{font-size:8px;margin-top:5px}.network-metrics>div{min-width:52px}.route-legend{display:flex;gap:15px;flex-wrap:wrap;max-width:310px}.route-legend button{font-size:9px;gap:6px;letter-spacing:0}.route-legend .line{width:14px}.intro-hint{display:none}.screen-shade{background:linear-gradient(180deg,#041a28cb,#061d2880 37%,#061d2800 60%,#041923c2 82%),linear-gradient(90deg,#061d2866,transparent 85%)}.view-tools{top:131px;right:20px;flex-direction:column;gap:5px}.view-tools button{width:32px;height:32px;font-size:17px;background:#072b398a}.station-dock{left:20px;right:0;bottom:62px}.dock-heading{padding-right:20px;font-size:10px;letter-spacing:.5px;margin-bottom:11px}.dock-kicker{display:none}.station-track{display:flex;gap:10px;overflow-x:auto;padding:4px 20px 5px 0;scroll-snap-type:x mandatory;scrollbar-width:none}.station-track::-webkit-scrollbar{display:none}.station-tile{flex:0 0 125px;scroll-snap-align:start}.tile-image{height:64px}.tile-caption{font-size:10px;padding-top:8px}.tile-image>span{font-size:11px;left:8px;top:7px}.tile-caption em{opacity:1;font-size:12px}.map-caption{right:20px;bottom:219px;gap:12px}.map-caption>div{font-size:14px;letter-spacing:1px}.map-caption small{font-size:8px;margin-top:5px}.north-arrow{font-size:9px;width:28px}.map-label .label-copy{font-size:8px;padding:4px 6px;gap:4px}.map-label.primary .pin{width:14px;height:14px;box-shadow:0 0 0 4px #dfbf741a}.map-label .pin{width:8px;height:8px}.map-label.primary .label-copy{font-size:10px;padding:6px 8px}.map-label .label-copy b{font-size:12px}.map-label{gap:6px}.bottombar{height:46px;padding:0 20px;gap:15px;align-items:center}.bottombar button{font-size:9px}.bottombar>span:nth-child(2){font-size:8px;line-height:1.6;text-align:right;max-width:230px}.station-dock{z-index:21}#station-intro{top:129px;width:calc(100% - 80px);left:23px}.back-link{font-size:10px;margin-bottom:18px}.station-count{font-size:9px;margin-top:12px}#station-intro h1{font-size:30px;margin:8px 0;letter-spacing:1px}#station-intro .eyebrow{font-size:8px;letter-spacing:1.8px}.station-role{font-size:10px;margin-bottom:14px;letter-spacing:.5px}#station-summary{display:none}.station-metrics{display:none}.station-selection{display:none}.text-link{width:auto;font-size:10px;display:inline-flex;gap:10px;padding:9px 0;margin-right:18px}.text-link>span{font-size:12px}#station-intro .text-link{border-top:0}#detail-card{width:205px;right:20px;bottom:258px;padding:14px 15px}#detail-card h3{font-size:19px;margin:8px 0}#detail-card p{font-size:10px;line-height:1.75}.detail-top{font-size:8px}.detail-line{margin:12px 0 8px}.detail-foot{font-size:6px;letter-spacing:1.3px}.camera-row{bottom:212px;left:20px;transform:none}.camera-row button{padding:9px 13px;font-size:10px}.hotspot-label .pin{width:20px;height:20px;font-size:8px}.hotspot-label{gap:5px}.hotspot-label .label-copy{font-size:9px;padding:4px 6px}[data-view=station] .screen-shade{background:linear-gradient(180deg,#041a28cf,#061d2899 26%,#061d2800 46%,transparent 62%,#041923df 84%)}.loading-panel{padding:16px;gap:13px}.loading-panel strong{font-size:12px}.loading-panel p{font-size:9px;white-space:nowrap}.loading-spinner{width:25px;height:25px}#brief-panel{top:109px;bottom:46px;padding:29px 22px 45px}.brief-header h2{font-size:32px;letter-spacing:2px}.brief-lead{font-size:14px}.brief-network{grid-template-columns:1fr;gap:23px;padding:24px;margin:24px 0 28px}.brief-network strong{font-size:22px}.brief-network p{font-size:12px;margin-top:9px}#brief-stations{grid-template-columns:1fr;gap:21px}.brief-station>img{height:215px}.brief-body{padding:21px}.brief-body h3{font-size:25px}.brief-body>p{font-size:13px}.brief-body .route{font-size:12px}.brief-provenance p{font-size:11px}#tour{bottom:210px;width:calc(100% - 40px);padding:13px 15px;gap:12px}#tour strong{font-size:11px}#tour small{font-size:8px}.tour-controls{gap:9px;margin-left:0}.tour-controls button{font-size:17px;min-width:17px}#gallery-dialog{padding:16px;width:96vw;max-width:96vw}.gallery-head h3{font-size:20px}.gallery-head small{font-size:8px}#gallery-note{font-size:10px}.gallery-head{gap:15px}#toast{top:118px;font-size:12px;padding:11px 16px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}

.gallery-paging{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:16px;color:#d9c496}.gallery-paging button{width:38px;height:30px;border:1px solid #c9d8c533}.gallery-paging span{font:11px Georgia;letter-spacing:2px}#gallery-thumbs{display:flex;gap:10px;overflow-x:auto;margin-top:16px;padding:4px 0 7px}#gallery-thumbs button{flex:0 0 116px;border:1px solid #b9cdb422;text-align:left;opacity:.6}#gallery-thumbs button.active{border-color:#e8c788;opacity:1}#gallery-thumbs img{display:block;width:114px;height:65px;object-fit:cover}#gallery-thumbs span{display:block;font-size:10px;padding:7px;white-space:nowrap}.detail-bottom{display:flex;justify-content:space-between;align-items:center}.detail-bottom>div{display:flex;gap:12px}.detail-bottom button{font-size:17px;color:#d5c08f}.gallery-head{position:sticky;top:-23px;background:#0b2935;z-index:2;padding:8px 0}#gallery-image{max-height:65svh}

.map-label .label-copy{transform:translateY(var(--label-shift,0px))}.label-leader{position:absolute;left:0;top:-100px;width:220px;height:220px;pointer-events:none;overflow:visible;opacity:0}.label-leader line{stroke:#cfbb8b;stroke-width:1;vector-effect:non-scaling-stroke}.north-arrow em{display:block;font-style:normal;transform-origin:50% 50%;font-size:21px;line-height:1.2}

/* V3: keep the architecture visible, with a quiet, reversible presentation overlay. */
[data-view=station] .screen-shade{background:linear-gradient(90deg,#091f28ba,transparent 35%),linear-gradient(180deg,#09232d8c,transparent 22%,transparent 78%,#09232dc2)}
#render-diagnostics{position:absolute;bottom:48px;left:16px;right:16px;color:#e7ead9;background:#0b252de6;padding:8px 12px;font:11px monospace;z-index:60}
#experience.clean .intro-panel,#experience.clean .station-dock,#experience.clean #detail-card,#experience.clean #labels,#experience.clean .map-caption,#experience.clean .camera-row,#experience.clean .bottombar,#experience.clean .screen-shade{display:none!important}
#experience.clean .topbar{opacity:0;transition:opacity .25s}#experience.clean .topbar:hover{opacity:1}#experience.clean #stage{bottom:0}
#experience.clean .view-tools{opacity:.3}#experience.clean .view-tools:hover{opacity:1}
@media(min-width:1000px){#station-intro{width:260px}#station-intro h1{font-size:38px}.station-metrics{gap:16px}#detail-card{width:264px}}
@media(max-width:760px){#experience.clean .topbar{display:none}#render-diagnostics{font-size:8px;bottom:3px;line-height:1.5}.view-tools{gap:4px}.view-tools button{width:29px;height:29px}}
@media(min-width:1000px) and (max-height:1000px){
 #network-intro{top:140px}
 #network-intro h1{font-size:48px;margin:18px 0;line-height:1.25}
 #network-intro .intro-text{font-size:13px;line-height:1.8}
 #network-intro .network-metrics{margin:20px 0}
 #network-intro .intro-hint{display:none}
 #station-intro{top:118px}
 #station-intro .back-link{margin-bottom:18px}
 #station-intro .station-count{margin-top:14px}
 #station-intro h1{font-size:32px}
 #station-intro .station-metrics{margin:20px 0}
}

.manual-controls{position:absolute;right:26px;top:185px;z-index:12;display:flex;gap:4px;padding:6px;border:1px solid #ffffff24;border-radius:8px;background:#061d28e8}.manual-controls button{width:38px;height:38px;color:#fff;background:transparent;border:0;border-radius:5px;font-size:21px;cursor:pointer}.manual-controls button:hover,.manual-controls button:focus-visible{background:#ffffff24;outline:2px solid #cbb487}.clean .manual-controls{opacity:.8}@media(max-width:760px){.manual-controls{right:12px;top:auto;bottom:238px}.manual-controls button{width:34px;height:36px}}