:root{color:#10233a;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(#dbeafe 0%,#f5f7fb 100%);font-family:Inter,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-height:100vh}code,textarea,input,select,button{font:inherit}code{font-family:SFMono-Regular,Consolas,monospace}button,input,select,textarea{border:1px solid #94a3b88c}.app-shell{grid-template-columns:minmax(0,1.65fr) 400px;min-height:100vh;display:grid}.scene-wrap{background:radial-gradient(circle at 0 0,#ffffffb3,#0000 28%),linear-gradient(#dceefc 0%,#cfe4c5 100%);min-height:100vh;position:relative;overflow:hidden}.hero-copy{z-index:3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffb8;border-radius:16px;width:min(480px,100% - 40px);padding:14px 16px;position:absolute;top:20px;left:20px;box-shadow:0 10px 36px #10233a1a}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:#315c85;margin:0 0 6px;font-size:.82rem}h1{margin:0;font-size:clamp(1.7rem,2.3vw,2.5rem);line-height:1.06}.subtitle{color:#35516c;max-width:46ch;margin:10px 0 0;font-size:.96rem}.hero-badges{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.hero-badges span,.chip,.pill{color:#23405e;background:#567a9d1f;border-radius:999px;align-items:center;padding:.34rem .75rem;font-size:.85rem;display:inline-flex}.pill{padding-inline:.58rem;font-size:.75rem}#scene,#label-layer{position:absolute;inset:0}#scene canvas{width:100%;height:100%;display:block}#label-layer{pointer-events:none;z-index:2}.map-label{color:#fff;white-space:nowrap;border-radius:999px;padding:.26rem .58rem;font-size:.74rem;font-weight:600;transition:opacity .2s;position:absolute;box-shadow:0 10px 30px #00000026}.map-label.landmark{background:#111827e0}.map-label.service{background:#0369a1e6}.map-label.gate{background:#c2410ceb}.scene-help,.selection-toast{z-index:3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#18324a;background:#fffc;position:absolute}.scene-help{border-radius:999px;padding:10px 14px;font-size:.84rem;bottom:24px;left:24px}.selection-toast{border-radius:14px;padding:10px 14px;font-size:.88rem;bottom:24px;right:24px;box-shadow:0 8px 24px #0f172a1a}.panel{background:#f9fafbfa;border-left:1px solid #94a3b859;flex-direction:column;gap:16px;max-height:100vh;padding:20px 18px;display:flex;overflow-y:auto}.panel section{background:#fff;border-radius:18px;padding:16px 16px 14px;box-shadow:0 12px 28px #0f172a0f}.panel h2{margin:0 0 10px;font-size:1rem}.route-name{color:#be185d;margin:0 0 12px;font-weight:700}.route-steps,.feature-list{color:#334155;margin:0;padding-left:1.2rem}.route-steps li+li,.feature-list li+li{margin-top:.62rem}.chip-list{flex-wrap:wrap;gap:8px;display:flex}.legend{color:#334155;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 12px;font-size:.9rem;display:grid}.legend div{align-items:center;gap:10px;display:flex}.swatch{border-radius:4px;width:14px;height:14px;display:inline-block}.swatch.route{background:#ec4899}.swatch.lake{background:#60a5fa}.swatch.sports{background:#22c55e}.swatch.academic{background:#93c5fd}.swatch.dorm{background:#c4b5fd}.swatch.selected{background:#fb7185}.entity-item{appearance:none;cursor:pointer;border-radius:12px;transition:all .18s}.entity-item:hover{border-color:#3b82f680;transform:translateY(-1px)}.entity-list{gap:8px;max-height:430px;display:grid;overflow-y:auto}.entity-item{text-align:left;background:#f8fafc;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:.75rem .8rem;display:flex}.entity-item>span:first-child{min-width:0}.entity-item strong,.entity-item small{display:block}.entity-item strong{overflow-wrap:anywhere}.entity-item small{color:#64748b}.entity-item small+small{margin-top:2px}.entity-item.selected{background:#fff1f2;border-color:#f43f5e8c}@media (width<=1200px){.app-shell{grid-template-columns:1fr}.scene-wrap{min-height:72vh}.panel{border-top:1px solid #94a3b859;border-left:0;max-height:none}}@media (width<=720px){.hero-copy{width:calc(100% - 28px);padding:14px 16px;top:14px;left:14px}.scene-help{text-align:center;border-radius:14px;bottom:14px;left:14px;right:14px}.selection-toast{bottom:72px;left:14px;right:14px}.panel{padding:14px}.legend{grid-template-columns:1fr}}