:root{--bg: #f4f6f8;--card: #ffffff;--text: #1f2329;--muted: #646a73;--primary: #1677ff;--primary-dark: #0958d9;--border: #e5e6eb;--fastest: #e8fff3;--danger: #fff1f0}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:13px;line-height:1.4}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh}.app-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 14px;background:var(--card);border-bottom:1px solid var(--border)}.brand-wrap{display:flex;align-items:baseline;gap:8px}.brand{font-weight:700;font-size:16px;color:var(--primary)}.brand-sub{color:var(--muted);font-size:12px}.app-nav{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.app-nav a:hover{color:var(--primary)}.nav-user{color:var(--text);max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.link-btn{border:none;background:transparent;color:var(--primary);cursor:pointer;padding:0;font-size:12px}.app-main{padding:12px 14px;max-width:1100px;margin:0 auto}.page-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 16px;box-shadow:0 4px 14px #0f172a08}.page-card.wide{max-width:100%}.page-card h1{margin:0 0 4px;font-size:18px;line-height:1.3}.page-desc{margin:0 0 10px;color:var(--muted);line-height:1.4;font-size:12px}.page-head{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;margin-bottom:10px}.query-form{display:grid;gap:10px}.field{display:grid;gap:4px;position:relative}.field-label{font-size:12px;font-weight:600;color:var(--text)}.field-hint{font-size:11px;color:var(--muted);line-height:1.35}.field-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.origin-list{display:grid;gap:8px}.origin-row{display:grid;grid-template-columns:100px 1fr auto;gap:6px;align-items:start;padding:8px;border:1px solid var(--border);border-radius:8px;background:#fafbfc}.origin-place .field-label{display:none}.label-input{font-weight:600}.danger-btn{color:#cf1322;border-color:#ffccc7}.view-tabs{display:flex;gap:6px;margin-bottom:10px}.inline-field{max-width:240px;margin-bottom:10px}.route-tabs{margin-bottom:8px}.route-label{font-weight:700;line-height:1.3;word-break:break-word;font-size:13px}.route-sub{font-size:11px;color:var(--muted);margin-top:2px;font-weight:400;line-height:1.3;word-break:break-word}.cell-delta{font-size:11px}.delta-up{color:#006d3b}.delta-down{color:#cf1322}.cell-slower{background:#fff7e6}.route-mini-list{margin:0 0 8px;padding-left:16px;color:var(--muted);font-size:12px;line-height:1.4}.time-input{width:120px;padding:5px 8px}.trend-chart-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin-top:6px}.trend-chart{width:100%;min-width:300px;min-height:200px;background:#fafbfc;border:1px solid var(--border);border-radius:8px;display:block}.trend-table{min-width:440px}.trend-day-cards{display:none;gap:8px}.trend-day-card{border:1px solid var(--border);border-radius:8px;overflow:hidden;background:#fff}.trend-day-head{padding:6px 10px;font-weight:700;background:#f7f8fa;border-bottom:1px solid var(--border);font-size:12px}.trend-day-list{list-style:none;margin:0;padding:0}.trend-day-list li{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid var(--border)}.trend-day-list li:last-child{border-bottom:none}.trend-day-route{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:12px}.trend-day-route i{width:8px;height:8px;border-radius:50%;flex-shrink:0}.trend-day-dur{font-size:13px;font-weight:700;white-space:nowrap}.trend-day-dur small{margin-left:4px;font-weight:400;color:var(--muted);font-size:11px}.field-input{width:100%;padding:7px 10px;border:1px solid var(--border);border-radius:7px;font-size:13px;line-height:1.3}.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #1677ff1f}.suggestions{position:absolute;top:calc(100% + 2px);left:0;right:0;z-index:10;list-style:none;margin:0;padding:4px;background:var(--card);border:1px solid var(--border);border-radius:8px;box-shadow:0 8px 20px #0f172a1a;max-height:200px;overflow:auto}.suggestions li{padding:7px 8px;border-radius:6px;cursor:pointer;display:grid;gap:2px}.suggestions li:hover{background:#f5f7fa}.suggestions small{color:var(--muted);font-size:11px}.chip-group{display:flex;flex-wrap:wrap;gap:5px}.chip{border:1px solid var(--border);background:#fff;border-radius:999px;padding:4px 10px;cursor:pointer;font-size:12px;line-height:1.3}.chip:hover{border-color:#91caff}.chip-active{border-color:var(--primary);color:var(--primary);background:#eef5ff;font-weight:600}.swap-row{display:flex;justify-content:center;margin:-2px 0}.swap-btn{display:inline-flex;align-items:center;gap:4px;border:1px dashed var(--primary);background:#f0f7ff;color:var(--primary);border-radius:999px;padding:4px 10px;font-size:12px;cursor:pointer;font-weight:600}.swap-btn:hover{background:#e6f4ff;border-style:solid}.swap-icon{font-size:13px;line-height:1}.fixed-hint{margin-top:-6px}.custom-time-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-top:2px}.primary-btn{border:none;border-radius:7px;padding:8px 14px;font-size:13px;cursor:pointer;background:var(--primary);color:#fff;line-height:1.3}.primary-btn:hover{background:var(--primary-dark)}.primary-btn:disabled{opacity:.6;cursor:not-allowed}.ghost-btn{border-radius:6px;padding:4px 8px;font-size:12px;cursor:pointer;background:#fff;border:1px solid var(--border);color:var(--text);line-height:1.3}.ghost-btn:hover{border-color:#91caff;color:var(--primary)}.error-box{padding:8px 10px;border-radius:7px;background:var(--danger);color:#cf1322;font-size:12px}.table-wrap{overflow:auto}.compare-table{width:100%;border-collapse:collapse;min-width:560px;font-size:12px}.compare-table th,.compare-table td{border:1px solid var(--border);padding:6px 8px;text-align:center;vertical-align:top}.compare-table th{background:#fafafa;font-weight:600}.time-col{font-weight:600;background:#fafafa;white-space:nowrap}.cell-fastest{background:var(--fastest)}.cell-btn{width:100%;border:none;background:transparent;cursor:pointer;display:grid;gap:2px;padding:2px}.cell-duration{font-size:15px;font-weight:700;line-height:1.2}.cell-source{font-size:10px;color:var(--muted)}.cell-hint{font-size:11px;color:var(--muted)}.cell-link{font-size:11px;color:var(--primary)}.hint-拥堵,.hint-严重拥堵{color:#d4380d}.hint-缓行{color:#d48806}.route-map-wrap{margin-bottom:10px}.route-map{width:100%;border-radius:8px;overflow:hidden;border:1px solid var(--border);background:#eef2f6;min-height:240px}.map-fallback{height:100%;display:flex;align-items:center;justify-content:center;padding:16px;color:var(--muted);text-align:center;font-size:12px}.map-legend{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px;color:var(--muted);font-size:11px}.legend-item{display:inline-flex;align-items:center;gap:4px}.legend-item i{width:14px;height:5px;border-radius:999px;display:inline-block;box-shadow:0 0 0 1px #00000014}.detail-summary{display:flex;flex-wrap:wrap;gap:10px;margin:10px 0 14px;color:var(--muted);font-size:12px}.detail-section{margin-top:12px}.detail-section h2{margin:0 0 8px;font-size:14px}.step-list{list-style:none;margin:0;padding:0;display:grid;gap:6px}.step-list li{display:grid;grid-template-columns:26px 1fr auto;gap:8px;align-items:center;padding:7px 9px;border:1px solid var(--border);border-radius:8px}.step-index{width:22px;height:22px;border-radius:50%;background:#eef5ff;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:11px}.step-body{display:grid;gap:1px}.step-body strong{font-size:12px}.step-body span{color:var(--muted);font-size:11px}.step-status{font-size:11px;font-weight:600;white-space:nowrap}.footnote{margin-top:10px;color:var(--muted);font-size:11px;line-height:1.4}.auth-card{max-width:420px;margin:0 auto}.auth-switch{margin-top:10px;color:var(--muted);font-size:12px}.save-panel{margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.save-panel h2{margin:0 0 8px;font-size:14px}.save-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}.save-row .field-input{flex:1;min-width:160px}.save-stack{display:grid;gap:6px}.check-row{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:12px;flex-wrap:wrap}.success-box{margin-top:8px;padding:8px 10px;border-radius:7px;background:var(--fastest);color:#006d3b;font-size:12px}.scenario-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px;margin-top:6px}.scenario-card{border:1px solid var(--border);border-radius:10px;padding:10px 12px;background:#fff}.scenario-card h2{margin:0 0 4px;font-size:14px;line-height:1.35}.meta-line{color:var(--muted);font-size:11px;margin:0 0 8px;line-height:1.4}.card-actions{display:flex;gap:5px;flex-wrap:wrap}.empty-state{padding:20px 12px;text-align:center;color:var(--muted);display:grid;gap:10px;justify-items:center;font-size:12px}.time-switch{margin-bottom:8px}@media(max-width:720px){.app-main{padding:8px 10px}.page-card{padding:10px 12px}.page-head{flex-direction:column;gap:6px}.app-header{flex-direction:row;align-items:center;padding:8px 10px}.page-card h1{font-size:16px}.trend-chart{min-height:220px}.trend-table-desktop{display:none}.trend-day-cards{display:grid;margin-top:6px}.origin-row{grid-template-columns:1fr}.brand-sub{display:none}}