:root{color-scheme:light;--paper:#f4f2eb;--panel:#fffef9;--ink:#173a40;--muted:#566e70;--line:#ccd6cf;--accent:#bf482e;--soft:#e9ede5}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:4px}header{max-width:1440px;margin:auto;padding:25px 32px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line)}nav{display:flex;gap:24px}.brand{font-weight:800;text-decoration:none;letter-spacing:2px}main{max-width:1440px;margin:auto;padding:0 32px}h1{font-size:clamp(32px,4.2vw,62px);line-height:1.15;letter-spacing:-2px;margin:18px 0}h1 em{font-style:normal;color:var(--accent)}h2{font-size:20px;margin:0 0 12px}h3{font-size:16px;margin:0 0 12px}p{line-height:1.8}.hero{padding:44px 0 25px}.hero p{color:var(--muted);font-size:16px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700}.account{display:flex;gap:20px;align-items:center;font-size:13px}.modebar{display:flex;gap:8px;flex-wrap:wrap;border-block:1px solid var(--line);padding:14px 0}.modebar button[aria-pressed=true],.map-tools button[aria-pressed=true]{background:var(--ink);color:#fff;border-color:var(--ink)}button,select,input{font:inherit}button{cursor:pointer;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:7px;padding:10px 13px;font-size:13px}button:hover{border-color:var(--ink)}button:disabled{opacity:.55;cursor:wait}.primary{background:var(--ink);border-color:var(--ink);color:white;font-weight:700;padding:14px 20px}input,select{width:100%;padding:11px 10px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--ink);font-size:14px;min-width:0}label{display:block;font-size:12px;font-weight:600;margin:13px 0}label input,label select{margin-top:6px}input[type=checkbox]{width:auto;margin-right:7px}.status{padding:13px 16px;background:var(--soft);font-size:13px;border-left:3px solid var(--ink);min-height:45px}.status.error{border-color:var(--accent);color:var(--accent)}.workspace{display:grid;grid-template-columns:350px minmax(0,1fr);gap:24px}.editor-panel{background:var(--panel);border:1px solid var(--line);padding:20px;border-radius:12px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.panel-head h2,.panel-head h3{margin:0}.itinerary{display:grid;gap:5px;margin:15px 0}.leg{display:flex;gap:10px;text-align:left;width:100%;padding:9px;border-color:transparent;background:var(--soft)}.leg.active{border-color:var(--accent);background:var(--panel)}.leg .letter{font-size:18px;width:23px;color:var(--accent);font-weight:800}.leg span:last-child{overflow:hidden}.leg strong{display:block;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.leg small{display:block;font-size:10px;color:var(--muted);line-height:1.5}.active-editor{border-top:1px solid var(--line);padding-top:18px}.search{display:flex;gap:6px;margin:12px 0}.search button{flex-shrink:0}.results{display:grid;gap:6px;max-height:240px;overflow:auto}.result{display:block;width:100%;text-align:left;padding:10px;line-height:1.6}.result strong{display:block;font-size:13px}.result small{display:block;color:var(--muted);font-size:11px}.muted{color:var(--muted);font-size:12px;line-height:1.75}.publish-controls{margin-top:20px;border-top:1px solid var(--line);padding-top:5px}.publish-controls .primary{width:100%}.publish-controls small{display:block;margin-top:10px;font-size:11px;line-height:1.8;color:var(--muted)}.map-panel{align-self:start;position:sticky;top:18px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--panel)}.map-head{display:flex;align-items:center;justify-content:space-between;padding:18px;gap:14px}.map-head h2{margin-bottom:4px}.map-head span{color:var(--muted);font-size:12px}.map-tools{display:flex;align-items:center;gap:7px;flex-wrap:wrap;padding:0 18px 13px}.map-tools button{font-size:12px;padding:7px 10px}.map-tools span{margin-left:auto;font-size:10px;color:var(--muted)}#creator-map{height:60vh;min-height:420px;max-height:650px;background:#e8ede7}.map-caption{padding:0 18px;font-size:11px;color:var(--muted)}#nearby-panel{padding:16px}.endpoints{display:grid;gap:10px;margin-top:20px}.endpoints button{text-align:left;padding:15px}.endpoints small{display:block;font-size:10px;color:var(--muted);letter-spacing:1px;margin-bottom:8px}.endpoints strong{font-size:15px}.preview{border:1px solid var(--line);border-radius:12px;background:var(--panel);margin:30px 0;padding:30px;max-width:100%}.verified{font-size:11px;color:#337755;white-space:nowrap}.preview h2{font-size:26px}.preview-story{max-width:920px}.preview-story p{font-family:"Noto Serif SC",serif;font-size:16px;line-height:2.1}.blank{color:var(--accent);border-bottom:1px dashed var(--accent);font-weight:700}.preview details{border-block:1px solid var(--line);padding:16px 0;margin:20px 0}.preview summary{cursor:pointer;font-weight:700;font-size:13px}.solution{padding:12px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.8}.solution:last-child{border:0}.solution ul{color:var(--muted);font-size:12px;margin:8px 0}.publish-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.rules{border-top:1px solid var(--line);margin-top:40px;padding:25px 0}.rules p{font-size:12px;color:var(--muted);max-width:1050px}footer{padding:28px 0 45px;border-top:1px solid var(--line);font-size:12px;display:flex;justify-content:space-between}.skip{position:absolute;top:-80px;background:var(--panel);padding:15px;z-index:10000}.skip:focus{top:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}:focus-visible{outline:3px solid #b8753e;outline-offset:3px}.leaflet-popup-content{font:13px/1.7 system-ui}.leaflet-popup-content button{margin-top:6px}.stop-label{background:var(--ink);color:white;border:0;font-size:11px;padding:3px 7px}
@media(max-width:850px){header,main{padding-inline:18px}header{font-size:12px}nav{gap:15px}.hero{padding:30px 0 20px}.hero p{font-size:13px}.workspace{grid-template-columns:1fr;gap:15px}.map-panel{position:static;grid-row:1}#creator-map{height:48vh;min-height:300px;max-height:420px}.editor-panel{padding:18px}.itinerary{grid-template-columns:repeat(2,minmax(0,1fr))}.leg:last-child{grid-column:1/-1}.preview{padding:20px}.preview h2{font-size:21px}.modebar button{font-size:12px;padding:10px}.map-tools span{display:none}.account{gap:10px;flex-wrap:wrap}.map-head{padding:15px}.map-head h2{font-size:17px}.map-head span{font-size:11px}.publish-row .primary{width:100%}.panel-head{align-items:flex-start}.verified{font-size:10px}.hero h1{letter-spacing:-1px}}
@media(prefers-color-scheme:dark){:root{color-scheme:dark;--paper:#101d20;--panel:#18292d;--ink:#dceae4;--muted:#a5b8b9;--line:#35494b;--accent:#fb9678;--soft:#203236}.primary,.modebar button[aria-pressed=true],.map-tools button[aria-pressed=true]{background:#dceae4;color:#163338}.verified{color:#82c99c}.leaflet-popup-content-wrapper,.leaflet-popup-tip{background:var(--panel);color:var(--ink)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

.zoom-tools{display:flex;gap:5px;flex-shrink:0}.zoom-tools button{padding:8px 10px;font-size:14px;min-width:35px}#guided-panel{border-top:1px solid var(--line);padding-top:18px}.origin-card{font-size:12px;background:var(--soft);padding:12px;border-left:3px solid var(--accent);line-height:1.8}.options-list{display:grid;gap:9px;margin:12px 0}.route-option{text-align:left;padding:14px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:8px;width:100%}.route-option strong{display:block;font-size:15px}.route-option .option-stops{display:block;font-size:13px;line-height:1.8;margin:7px 0}.route-option small{display:block;font-size:11px;color:var(--muted);line-height:1.7}.route-option:hover{background:var(--soft)}.option-footer{display:flex;justify-content:space-between;margin-top:9px;font-size:10px;color:var(--muted)}.option-footer b{color:var(--accent)}#undo-step{width:100%;margin:6px 0}.leaflet-container{touch-action:none}.leaflet-control-zoom a{color:#173a40;background:#fff;line-height:30px}.leaflet-control-zoom a:hover{background:#e9ede5}
@media(max-width:850px){.map-head{flex-wrap:wrap}.zoom-tools{margin-left:auto}.zoom-tools button{font-size:12px}.route-option{padding:14px}.modebar button{font-size:11px}.modebar button:nth-last-child(-n+2){padding:8px}}