:root{--paper:#f4f1e9;--ink:#253d35;--muted:#6a7067;--line:#d8d8cb;--accent:#b55337;--card:#fffdf7;color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:4px}button{font:inherit;color:inherit;cursor:pointer}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}button{touch-action:manipulation}[hidden]{display:none!important}.site-header,main,footer{max-width:1360px;margin:auto}.site-header{padding:30px 48px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font:27px Georgia,serif;text-decoration:none;letter-spacing:-1px}.brand span{display:block;font:8px Arial,sans-serif;letter-spacing:2.1px;margin-top:8px}.back{font-size:12px;text-decoration:none}main{padding:0 48px}.intro{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;padding:48px 0 38px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600}.intro .eyebrow{margin:0 0 21px;color:var(--accent)}h1{font:clamp(40px,4.4vw,65px)/1.04 Georgia,serif;letter-spacing:-2.8px;margin:0}h1 em{font-weight:400;color:var(--accent)}.intro-copy{padding-bottom:5px;max-width:365px;font-size:14px;line-height:1.75;color:var(--muted)}.intro-copy p{margin:8px 0}.intro-copy .chinese-title{color:var(--ink);font-size:17px;letter-spacing:2px}.touch-hint{font-size:11px}.route-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:20px 0}.route-strip b{font:24px Georgia,serif}.route-strip div>span{font-size:14px;margin-left:15px}.route-strip p{margin:0;font-size:12px;color:var(--muted)}.route-strip p span{margin:0 20px}.route-count{font-size:9px;letter-spacing:1.5px}.stop-nav{display:flex;gap:8px;overflow:auto;padding:18px 0 22px;scrollbar-width:thin}.stop-nav button{flex-shrink:0;background:transparent;border:1px solid var(--line);border-radius:30px;padding:9px 13px;font-size:11px;transition:background .2s,color .2s}.stop-nav button span{font-size:9px;margin-right:8px;color:var(--accent)}.stop-nav button.active{background:var(--ink);color:var(--paper);border-color:var(--ink)}.stop-nav button.active span{color:#eed5b6}.explorer{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:34px;align-items:start}.map-figure{margin:0;min-width:0}.map-canvas{position:relative;background:#faf7ee;border:1px solid #e5e0d3;isolation:isolate;line-height:0}.map-canvas svg{display:block;width:100%;height:auto;overflow:visible}.map-shade{pointer-events:none;transition:opacity .22s}.road-labels{pointer-events:none;fill:#645e4d;font:11px Arial,sans-serif;font-weight:600;letter-spacing:1px;paint-order:stroke;stroke:#faf7ee;stroke-width:6px;stroke-linejoin:round}.road-labels .north-marker{font-size:16px;letter-spacing:3px}.building-region{fill:transparent;stroke:transparent;cursor:pointer;pointer-events:all;outline:none}.building-region:focus-visible{stroke:#b55337;stroke-width:3;stroke-dasharray:6 4}.building-outline{fill:transparent;stroke:#fff8da;stroke-width:2.5;stroke-linejoin:round;filter:drop-shadow(0 0 4px #e4b276);pointer-events:none;opacity:0}.map-labels{position:absolute;inset:0;pointer-events:none}.map-label{position:absolute;transform:translate(-50%,-50%);pointer-events:auto;border:1px solid #d9d5c5;background:rgba(255,253,245,.95);box-shadow:0 2px 9px #4b44201a;border-radius:3px;padding:6px 10px 6px 7px;display:flex;gap:7px;align-items:center;white-space:nowrap;max-width:40%;transition:opacity .2s,background .2s,box-shadow .2s;line-height:1.2;text-align:left}.label-number{display:grid;place-items:center;width:19px;height:19px;flex:none;border-radius:50%;background:var(--accent);color:white;font:9px Arial,sans-serif}.label-name{display:block;font-size:12px;letter-spacing:.5px}.label-english{display:block;font-size:8px;color:var(--muted);margin-top:3px;letter-spacing:.1px}.map-canvas.has-active .map-label:not(.active){opacity:.42}.map-label.active{background:#fff8de;box-shadow:0 2px 12px #35291b33;border-color:#af7443}.map-label:hover{box-shadow:0 2px 12px #35291b33}.map-figure figcaption{display:flex;gap:23px;padding:20px 0;color:var(--muted);font-size:10px;line-height:1.65}.map-figure figcaption>span{flex-shrink:0;letter-spacing:1px;font-size:9px;margin-top:2px}.map-figure figcaption p{margin:0;max-width:520px}.story-column{position:sticky;top:22px;min-width:0}.idle-card{border-top:3px solid var(--ink);padding:27px 12px 24px}.idle-card>.eyebrow{font-size:9px;color:var(--accent)}.idle-symbol{font:100px/.9 Georgia,serif;color:#b4ba9d;margin:22px 0 15px}.idle-card h2{font:34px/1.15 Georgia,serif;letter-spacing:-.7px;margin:0 0 19px}.idle-card>p{color:var(--muted);font-size:13px;line-height:1.8}.idle-card ol{list-style:none;padding:25px 0 20px;margin:0;font-size:12px;line-height:2.7}.idle-card li span{font-size:9px;color:var(--accent);margin-right:14px}.road-history{border-top:1px solid var(--line);padding-top:22px;margin-top:14px;font-size:11px}.road-history small{font-size:8px;letter-spacing:1.4px}.road-history p{line-height:1.5}.road-history p span{margin:0 4px;color:var(--accent)}.story-card{background:var(--card);border:1px solid var(--line);border-top:3px solid var(--accent);box-shadow:0 8px 28px #353d2710;max-height:calc(100dvh - 44px);overflow:auto;scrollbar-width:thin;animation:reveal .2s ease}.story-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 22px 3px}.story-top .eyebrow{font-size:9px;color:var(--accent);letter-spacing:1.4px}.icon-button{border:0;background:transparent;font-size:24px;width:32px;height:32px;line-height:1}.story-card #storyContent{padding:0 22px 20px}.building-chinese{font-size:16px;letter-spacing:2px;margin:11px 0 8px;color:var(--accent)}.story-card h2{font:31px/1.08 Georgia,serif;letter-spacing:-.7px;margin:0 0 16px}.address{font-size:11px;line-height:1.5;margin:4px 0;color:var(--muted)}.era{margin:20px 0 16px;padding:10px 0;border-block:1px solid var(--line);font-size:11px;letter-spacing:.2px}.story-text{font-size:13px;line-height:1.75;margin:0 0 22px}.story-card h3{font-size:9px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;margin:0 0 9px;color:var(--accent)}.look p{font-size:12px;line-height:1.65;color:var(--muted);margin:0}.look{padding-left:12px;border-left:2px solid #dfbd83}.name-history{margin:23px 0}.name-history dl{margin:0;font-size:11px;line-height:1.55}.name-history dt{font-size:9px;margin-top:9px;color:var(--muted)}.name-history dd{margin:3px 0 0}.photo-details{border-top:1px solid var(--line);padding-top:14px;margin-top:20px}.photo-details summary{cursor:pointer;font-size:11px;list-style:none;display:flex;justify-content:space-between}.photo-details summary::-webkit-details-marker{display:none}.photo-details img{display:block;width:100%;max-height:330px;object-fit:contain;margin-top:15px;background:var(--paper)}.photo-credit{font-size:9px;line-height:1.6;color:var(--muted)}.source-links{display:flex;flex-direction:column;gap:8px;font-size:9px;color:var(--muted);line-height:1.5}.map-link{display:flex;justify-content:space-between;gap:8px;margin-top:19px;font-size:11px;text-decoration:none;border-bottom:1px solid var(--line);padding-bottom:8px}.story-bottom{display:flex;gap:8px;justify-content:space-between;background:#f3f0e5;padding:14px 18px;position:sticky;bottom:0;border-top:1px solid var(--line)}.pin-button,.next-button{font-size:9px;border:0;background:transparent;padding:8px 0}.pin-button{color:var(--accent)}.pin-button[aria-pressed=true]{color:var(--ink)}footer{padding:33px 48px;margin-top:30px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;font-size:11px}footer a{text-decoration:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes reveal{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.art-credits{font-size:10px;color:var(--muted);line-height:1.6;margin-bottom:20px}.art-credits summary{cursor:pointer}.art-credits p{max-width:650px}
@media(min-width:1450px){.label-name{font-size:13px}.label-english{font-size:9px}}
@media(max-width:1050px){main{padding:0 28px}.site-header,footer{padding-left:28px;padding-right:28px}.explorer{grid-template-columns:minmax(0,1fr) 280px;gap:20px}.intro{gap:20px}.intro-copy{font-size:12px;max-width:285px}.route-count{display:none}.map-label{padding:5px 6px;gap:5px}.label-name{font-size:10px}.label-english{font-size:7px}.label-number{width:16px;height:16px;font-size:8px}.map-figure figcaption{display:block}.map-figure figcaption p{margin-top:8px}.story-card #storyContent{padding-inline:18px}.story-top{padding-inline:18px}}
@media(max-width:760px){.site-header{padding:22px 20px 19px}.brand{font-size:24px}.brand span{font-size:7px}.back{font-size:11px}main{padding:0 18px}.intro{display:block;padding:32px 0 28px}h1{font-size:45px;letter-spacing:-2px}.intro .eyebrow{font-size:8px;margin-bottom:17px}.intro-copy{max-width:none;margin-top:24px;font-size:12px}.intro-copy .chinese-title{font-size:14px}.intro-copy p br{display:none}.route-strip{padding:15px 0;flex-wrap:wrap;gap:10px}.route-strip b{font-size:21px}.route-strip div>span{font-size:12px}.route-strip p{font-size:10px}.route-strip p span{margin:0 8px}.stop-nav{margin-right:-18px;padding:15px 18px 17px 0}.explorer{display:block}.map-canvas{margin:0 -8px}.map-label{padding:4px 5px;gap:4px;min-height:33px}.label-name{font-size:10px;letter-spacing:0}.label-english{font-size:7px;max-width:110px;white-space:normal}.label-number{width:15px;height:15px;font-size:7px}.story-column{position:static}.idle-card{padding:20px 0;border-top:1px solid var(--line);display:block}.idle-card .idle-symbol,.idle-card h2,.idle-card ol,.idle-card>p{display:none}.idle-card .road-history{border:0;margin:8px 0 0;padding-top:0}.story-column.has-story{position:fixed;bottom:12px;left:12px;right:12px;z-index:20;filter:drop-shadow(0 -4px 20px #1f382b26)}.story-column.has-story .story-card{max-height:48dvh;border-radius:10px 10px 5px 5px}.story-top{padding-top:7px;position:sticky;top:0;background:var(--card);z-index:2}.story-card h2{font-size:28px}.building-chinese{font-size:14px;margin-top:8px}.story-text{font-size:13px}.story-bottom{padding:8px 17px}.pin-button,.next-button{font-size:10px;padding:9px 0}.era{margin-top:13px}.map-figure figcaption{font-size:9px;padding:16px 0}.map-figure figcaption>span{font-size:8px}footer{padding:23px 20px;display:block;font-size:10px;line-height:2}footer a{display:block}body.has-story footer{padding-bottom:50dvh}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
/* V6: let the living street fill the page; stories float only when requested. */
main{max-width:none;padding:0}.intro,.route-strip,.stop-nav{max-width:1280px;margin-inline:auto}.intro{padding:32px 40px 30px}h1{font-size:49px;line-height:1.04;letter-spacing:-2px}.intro .eyebrow{margin-bottom:16px}.intro-copy{max-width:360px}.route-strip{padding:17px 40px;border-top:0}.route-strip b{font-size:23px}.stop-nav{padding:15px 40px 20px}.walk-tools{position:sticky;top:0;z-index:12;background:rgba(245,244,236,.95);backdrop-filter:blur(16px);border-bottom:1px solid #cecec0;padding:13px max(24px,calc((100vw - 1200px)/2));display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:59px}.walk-position{display:flex;align-items:center;gap:10px;font-size:11px;letter-spacing:.3px}.live-dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}.view-tools{display:flex;align-items:center;gap:8px}.view-tools button{border:0;background:transparent;padding:7px 9px;font-size:12px;min-width:32px;min-height:32px;border-radius:4px}.view-tools button:hover{background:#e3e3d8}.view-tools button:disabled{opacity:.3;cursor:default}.view-tools output{font-size:10px;min-width:35px;text-align:center}.tool-divider{height:16px;border-left:1px solid var(--line);margin:0 3px}#toggleLabels{font-size:10px}.walk-progress{position:absolute;bottom:-1px;left:0;right:0;height:2px;pointer-events:none}.walk-progress span{height:100%;display:block;background:var(--accent);width:0}.explorer{display:block}.map-figure{max-width:1200px;margin:0 auto}.map-viewport{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;background:#e2e5dc}.map-viewport:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}.map-canvas{border:0;margin:0;width:100%;min-width:100%;background:#e2e5dc;line-height:0}.map-canvas svg{overflow:hidden}.map-label{padding:6px 9px 6px 6px;background:rgba(255,253,243,.93);box-shadow:0 3px 10px #172e2640;border:1px solid #f3e8ca;border-radius:3px;gap:6px;max-width:30%}.label-number{background:#2b463b}.label-name{font-size:12px}.label-english{font-size:8px}.map-label.active{border-color:#f9dc9c;background:#fff6db;box-shadow:0 3px 14px #172e2650}.map-label.active .label-number{background:var(--accent)}.map-canvas.has-active .map-label:not(.active){opacity:.48}.map-canvas.names-hidden .map-label:not(.active){padding:3px;border-radius:50%;background:#fff9ecbb}.map-canvas.names-hidden .map-label:not(.active)>span:last-child{display:none}.road-labels{fill:#faf8ee;stroke:#20382b;stroke-width:4px;font-size:12px;letter-spacing:1px;opacity:.92}.building-outline{stroke-width:2;filter:drop-shadow(0 0 4px #ecc67e)}.story-column{display:none;position:fixed;right:24px;left:auto;top:86px;width:338px;z-index:18}.story-column.has-story{display:block}.story-column.card-left{left:24px;right:auto}.idle-card{display:none!important}.story-card{max-height:calc(100dvh - 110px);background:rgba(255,253,247,.98);box-shadow:0 14px 54px #172b2450;overscroll-behavior:contain}.story-top{position:sticky;top:0;z-index:2;background:var(--card)}.story-card h2{font-size:29px}.story-bottom{z-index:2}.map-figure figcaption{padding:24px 36px 12px;max-width:1140px;margin:auto;gap:40px}.map-figure figcaption p{max-width:710px}.art-credits{max-width:1068px;margin:0 auto;padding:0 0 30px}.art-credits p{max-width:950px}footer{margin-top:0}.scene-caption{font-size:13px}
@media(max-width:1050px){.intro{padding:28px}.stop-nav{padding-inline:28px}.route-strip{padding-inline:28px}.story-column{width:306px;right:16px}.story-column.card-left{left:16px}.art-credits{padding:0 28px 25px}.map-label{max-width:36%}.label-name{font-size:11px}}
@media(max-width:760px){main{padding:0}.intro{padding:26px 20px 23px}.intro h1{font-size:39px}.intro-copy{margin-top:18px;font-size:12px}.intro-copy .chinese-title{font-size:14px}.route-strip{padding:14px 20px}.route-strip p{font-size:10px}.stop-nav{margin-right:0;padding:14px 20px 18px;gap:7px}.walk-tools{padding:9px 10px;gap:6px;min-height:54px}.walk-position{font-size:9px;gap:6px;max-width:43%}.view-tools{gap:2px}.view-tools button{padding:6px;min-width:28px}.view-tools output{font-size:9px;min-width:31px}.tool-divider{margin:0 2px}#toggleLabels{font-size:9px}.map-canvas{margin:0}.map-label{gap:4px;min-height:29px;max-width:45%;padding:4px 5px}.label-name{font-size:10px}.label-english{font-size:7px}.label-number{width:15px;height:15px;font-size:7px}.map-canvas.names-hidden .map-label:not(.active){min-height:0}.story-column.has-story,.story-column.has-story.card-left{top:auto;bottom:10px;left:10px;right:10px;width:auto;filter:none}.story-column.has-story .story-card{max-height:44dvh;border-radius:10px 10px 5px 5px}.story-top{padding-top:7px}.map-figure figcaption{padding:18px 20px 10px;font-size:10px}.art-credits{padding:0 20px 24px;font-size:10px}body.has-story footer{padding-bottom:45dvh}}

/* V7: a detailed southern chapter and an address-based index for the whole road. */
.index-link{font-size:11px;text-decoration:none;white-space:nowrap;border-bottom:1px solid #abb5a4;padding:5px 0}.index-link span{margin-left:12px;color:var(--accent)}
.street-index{max-width:1160px;margin:38px auto 60px;padding:42px 36px 0;border-top:1px solid var(--line);scroll-margin-top:80px}.index-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:30px}.index-heading .eyebrow{color:var(--accent);font-size:9px}.index-heading h2{font:36px/1.15 Georgia,serif;letter-spacing:-1px;margin:12px 0}.index-heading p[lang]{font-size:13px;letter-spacing:2px;color:var(--muted)}.index-intro{max-width:380px;font-size:12px;line-height:1.8;color:var(--muted)}#directoryCount{display:inline-block;margin-top:12px;font-size:10px;letter-spacing:1px;color:var(--accent)}.directory-list{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;align-items:start}.directory-row{border-top:1px solid var(--line)}.directory-row summary{padding:18px 22px 18px 0;cursor:pointer;list-style:none;position:relative;display:flex;justify-content:space-between;gap:14px;align-items:center}.directory-row summary::-webkit-details-marker{display:none}.directory-row summary:after{content:'+';position:absolute;right:0;color:var(--accent);font-size:19px;font-weight:300}.directory-row[open] summary:after{content:'−'}.directory-title b{display:block;font:18px/1.2 Georgia,serif}.directory-title>span{display:block;margin-top:7px;font-size:11px;color:var(--muted)}.directory-address{font-size:10px;line-height:1.6;max-width:140px;text-align:right;color:var(--muted);flex:none}.directory-detail{padding:0 20px 20px 0;font-size:12px;line-height:1.7;color:var(--muted)}.directory-detail p{margin:0 0 12px}.directory-detail a{font-size:10px;color:var(--accent)}.index-note{font-size:10px;line-height:1.7;color:var(--muted);margin-top:28px;max-width:760px}.map-figure{max-width:1200px}.road-labels{font-size:16px;stroke-width:5px}.chapter-tag{font-size:10px;letter-spacing:1px}
@media(max-width:760px){.index-link{font-size:10px}.street-index{margin:22px 20px 35px;padding:28px 0 0}.index-heading{display:block;margin-bottom:20px}.index-heading h2{font-size:29px}.index-intro{max-width:none;font-size:12px}.directory-list{grid-template-columns:1fr}.directory-title b{font-size:18px}.directory-address{max-width:126px}.road-labels{font-size:18px}.map-label{max-width:44%}.route-strip{align-items:center}.intro .eyebrow{font-size:8px;line-height:1.6}}

/* All four views share one natural page-scroll surface. */
#wholeStreet{scroll-margin-top:10px}.walk-tools{display:grid;grid-template-columns:minmax(0,1fr) auto;row-gap:5px;padding-top:8px;padding-bottom:7px}.chapter-nav{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.chapter-nav button{border:0;border-bottom:2px solid transparent;background:transparent;padding:8px 10px;font-size:11px;display:flex;align-items:center;gap:8px;justify-content:center}.chapter-nav button>span{font-size:9px;color:var(--accent)}.chapter-nav b{font-weight:400}.chapter-nav small{font-size:9px;color:var(--muted)}.chapter-nav button.current{border-color:var(--accent);background:#e7e8dd}.chapter-heading{pointer-events:none;fill:var(--ink);font-family:Arial,"PingFang SC",sans-serif}.chapter-number{font:32px Georgia,serif;fill:var(--accent)}.chapter-name{font-size:17px;letter-spacing:2px}.chapter-range{font-size:13px;letter-spacing:1px;fill:var(--muted)}.story-column{top:126px}.story-card{max-height:calc(100dvh - 150px)}.street-finish{margin:8px 36px 25px;padding:26px 0;border-block:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.street-finish .eyebrow{color:var(--accent);font-size:9px}.street-finish p{font-size:12px;color:var(--muted)}.street-finish a{font-size:10px}.directory-detail .scene-link{display:inline-block;margin-right:18px}.walk-position{max-width:none}.map-canvas svg{contain:paint}
@media(max-width:760px){.walk-tools{padding:7px 10px 4px;gap:3px}.chapter-nav{gap:2px}.chapter-nav button{padding:8px 3px;gap:4px;font-size:10px}.chapter-nav small{display:none}.walk-position{font-size:9px;max-width:none}.chapter-name{font-size:22px;letter-spacing:1px}.chapter-range{font-size:19px;letter-spacing:0}.street-finish{margin:5px 20px 22px;display:block;padding:20px 0}.street-finish p{font-size:11px}.story-column.has-story,.story-column.has-story.card-left{top:auto}.story-column.has-story .story-card{max-height:44dvh}}

.map-viewport,.map-canvas{height:auto;max-height:none}.touch-hint{display:block;line-height:1.7}