:root{--paper:#f4f1e6;--ink:#16352d;--muted:#65746c;--line:#23433824;--green:#1f5c46;--green-soft:#dcebcf;--coral:#eb6244;--font-body:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-display:"Songti SC", "STSong", "Noto Serif CJK SC", serif}*{box-sizing:border-box}html,body{min-height:100%}html{background:var(--paper)}body{color:var(--ink);background:var(--paper);font-family:var(--font-body);-webkit-font-smoothing:antialiased;margin:0;font-size:16px}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit;cursor:pointer}button:focus-visible,input:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #eb62448c}a{color:inherit;text-decoration:none}h1,h2,p{margin:0}.atlas-app{background-image:radial-gradient(#1d3d320d .8px,#0000 .8px);background-size:8px 8px;min-height:100svh;overflow:hidden}.app-header{z-index:20;border-bottom:1px solid 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16px;font-weight:650;display:inline-flex}.header-actions{justify-content:flex-end;gap:9px;display:flex}.header-actions button{border-radius:12px;align-items:center;gap:7px;min-height:40px;padding:0 13px;font-size:13px;display:inline-flex}.workspace{grid-template-columns:minmax(260px,.85fr) minmax(440px,1.65fr) minmax(300px,.95fr);height:calc(100svh - 78px);min-height:620px;display:grid}.route-browser,.route-detail{z-index:10;background:#f8f6edf5;position:relative}.route-browser{border-right:1px solid var(--line);flex-direction:column;min-width:0;padding:34px 24px 20px;display:flex}.browser-heading{padding:0 4px}.edition,.dialog-kicker{color:var(--coral);letter-spacing:1.4px;font-family:Avenir Next,sans-serif;font-size:11px;font-weight:750}.browser-heading h1{font-family:var(--font-display);letter-spacing:-1.5px;margin:15px 0 11px;font-size:clamp(32px,2.5vw,44px);font-weight:650;line-height:1.16}.browser-heading p{color:var(--muted);font-size:14px;line-height:1.7}.search-box{border:1px 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290px}.route-browser,.route-detail{padding-left:19px;padding-right:19px}.header-actions span{display:none}}@media (max-width:860px){.atlas-app{overflow:visible}.app-header{grid-template-columns:1fr auto;height:66px;padding:0 16px;position:sticky;top:0}.brand{font-size:17px}.brand-mark{width:37px;height:37px}.city-switch{grid-area:1/2}.header-actions{display:none}.workspace{flex-direction:column;height:auto;min-height:0;display:flex}.route-browser{border-right:0;padding:24px 16px 13px;display:block}.browser-heading h1{margin:10px 0 8px;font-size:34px}.browser-heading p{font-size:13px}.search-box{margin:18px 0 11px}.filter-row{padding-bottom:0}.route-list{display:none}.map-stage{border-radius:22px 22px 0 0;order:2;margin:0 10px}.map-art{height:62svh;min-height:520px}.route-map-view{height:72svh;min-height:610px}.route-map-title{max-width:calc(100% - 38px);top:82px}.route-map-title strong{font-size:19px}.route-map-back{top:18px;left:16px}.route-map-summary{z-index:8;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#fffdf6f0;border:1px solid #1d4c3a1f;border-radius:22px;grid-template-columns:1fr auto;align-items:end;gap:6px 16px;padding:19px;display:grid;position:absolute;bottom:10px;left:10px;right:10px;box-shadow:0 -10px 34px #16403029}.route-map-summary .prototype-chip,.route-map-summary h2,.route-map-summary p{grid-column:1}.route-map-summary h2{font-family:var(--font-display);margin:4px 0 0;font-size:25px}.route-map-summary p{color:var(--muted);font-size:12px}.route-map-summary button{background:var(--green);color:#fff;border:0;border-radius:999px;grid-area:1/2/span 3;align-items:center;gap:7px;min-height:49px;padding:0 17px;font-size:13px;font-weight:750;display:inline-flex}.workspace[data-view=route] .route-detail{display:none}.map-marker{width:33px;height:33px}.map-marker strong{max-width:130px;font-size:10px;left:auto;right:39px}.map-caption{font-size:9px;bottom:12px}.route-detail{border:0;border-radius:24px;order:3;margin:-18px 10px 18px;padding:25px 20px 22px;overflow:visible;box-shadow:0 -9px 30px #15413124}.route-detail h2{font-size:32px}.detail-actions{border:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#faf8efeb;border-radius:17px;padding:8px;position:sticky;bottom:9px}}@media (max-width:480px){.app-header{padding:0 12px}.brand small{display:none}.city-switch{padding:0 12px}.browser-heading h1{font-size:31px}.map-art{height:58svh;min-height:480px}.route-map-view{height:calc(100svh - 88px);min-height:600px}.route-map-summary{grid-template-columns:minmax(0,1fr) auto;padding:17px}.route-map-summary h2{text-overflow:ellipsis;white-space:nowrap;font-size:21px;overflow:hidden}.route-map-summary button{padding:0 14px}.metric-grid 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