:root{--ink:#1b2c3a;--muted:#61717e;--orange:#df6016;--blue:#177da6;--line:#dde3e7;--paper:#f6f7f9;--green:#24755d}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}header,main,footer{max-width:1180px;margin:auto;padding:24px 32px}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}a{color:var(--blue)}.brand{text-decoration:none;font-size:23px;font-weight:800;letter-spacing:-1px;color:var(--ink)}.brand>span:first-child{color:var(--orange)}.tag{font-size:10px;letter-spacing:1.5px;font-weight:600;margin-left:20px;color:var(--muted)}h1{font-size:clamp(32px,5vw,60px);line-height:1.08;letter-spacing:-2px;margin:16px 0 22px}h2{font-size:23px;letter-spacing:-.6px}h3{margin:0 0 8px}p{max-width:760px;color:var(--muted)}button,.button{display:inline-block;border:0;border-radius:9px;padding:12px 18px;background:var(--orange);color:white;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;min-height:44px}button:disabled{opacity:.45;cursor:not-allowed}button:hover:not(:disabled){filter:brightness(.94)}button.secondary,.button.secondary{background:#e7edf1;color:var(--ink)}button.quiet{background:transparent;color:var(--muted);border:1px solid var(--line)}button.danger{background:#b84037}.actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.eyebrow{font-size:11px;font-weight:750;letter-spacing:2px;color:var(--blue)}nav{display:flex;gap:6px;margin:0 0 36px;overflow-x:auto}nav button{white-space:nowrap;background:transparent;color:var(--muted)}nav button.active{background:white;color:var(--ink);box-shadow:0 2px 6px #23303e0d}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:25px;align-items:center;padding:12px 0 32px}.hero h1 span{color:var(--orange)}.hero p{font-size:18px}.road-art{position:relative;height:300px;overflow:hidden;background:#edf0eb;border-radius:24px;background-image:linear-gradient(90deg,#fff8 1px,transparent 1px),linear-gradient(#fff8 1px,transparent 1px);background-size:38px 38px}.road-line{position:absolute;width:210px;height:430px;border:45px solid #d5dfdc;border-radius:120px;transform:rotate(40deg);left:100px;top:-80px;outline:3px solid white}.pin{position:absolute;border:7px solid white;box-shadow:0 5px 15px #172c3920;border-radius:50%;width:54px;height:54px;background:var(--orange);display:grid;place-items:center;color:white;font-weight:bold}.p1{left:70px;top:55px}.p2{right:70px;top:135px;background:var(--blue)}.p3{left:145px;bottom:25px;background:var(--green)}.road-art>span{position:absolute;bottom:16px;right:15px;font-size:9px;letter-spacing:1px;color:var(--muted);background:#ffffffd9;padding:5px;border-radius:4px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:10px 0 28px}.stat{background:white;border:1px solid var(--line);padding:20px;border-radius:12px}.stat strong{font-size:34px;display:block;letter-spacing:-1px}.stat span{color:var(--muted);font-size:13px}.panel{background:white;border:1px solid var(--line);border-radius:14px;padding:24px;margin:18px 0}.login{max-width:560px;margin:60px auto}.section-title{display:flex;justify-content:space-between;align-items:center;gap:20px}.map{height:340px;border-radius:14px;border:1px solid var(--line);z-index:0;background:#e7ecec}.small{font-size:12px}.muted{color:var(--muted)}.tip{border-left:4px solid var(--orange)}.tip p{margin:4px 0}.empty{padding:30px;border:1px dashed #c7d0d7;border-radius:12px;color:var(--muted);text-align:center}label{display:block;font-size:13px;font-weight:650;margin:14px 0}input,textarea,select{width:100%;font:inherit;color:var(--ink);border:1px solid #c8d2d9;border-radius:8px;background:white;padding:11px;margin-top:7px}textarea{min-height:95px;resize:vertical}input:focus,textarea:focus,select:focus{outline:2px solid #1995e640;border-color:var(--blue)}.check{display:flex;align-items:flex-start;gap:10px;font-weight:400}.check input{width:18px;height:18px;flex:0 0 auto;margin:2px 0}.filter{max-width:320px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}video{width:100%;max-height:380px;background:#1c2931;border-radius:10px;margin-top:10px}video:not([src]):not(.ready){min-height:130px}.record-status{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:14px 0}.record-status strong{font-variant-numeric:tabular-nums;font-size:26px}.record-status span{font-size:13px}.recording{color:#b84037}.card{display:flex;justify-content:space-between;gap:20px;align-items:center;background:white;padding:19px 22px;border:1px solid var(--line);border-radius:12px;margin:10px 0}.card p{margin:4px 0;font-size:13px}.badge{display:inline-block;font-size:11px;font-weight:650;border-radius:5px;padding:3px 7px;background:#eaf0f4;color:#486677}.badge.good{background:#e3f2eb;color:var(--green)}.badge.warn{background:#fff0df;color:#a55218}.frames{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.frame{background:white;border:1px solid var(--line);border-radius:12px;overflow:hidden}.frame img{width:100%;aspect-ratio:16/9;object-fit:contain;background:#182630}.frame-body{padding:14px}.frame p{font-size:12px}.frame button{padding:9px 12px;font-size:13px}.frame .actions{margin:10px 0 0}.timeline{border-left:2px solid var(--line);padding-left:20px}.timeline p{font-size:13px;white-space:pre-wrap}.timeline article{padding:5px 0 15px}.observation img{width:100%;border-radius:8px}.observation{max-width:540px;margin:15px 0}.prewrap{white-space:pre-wrap}.notice{padding:12px 16px;background:#fff2e5;border-radius:8px;color:#86501f;font-size:13px}.split-title{display:flex;align-items:center;justify-content:space-between;gap:15px}dialog{border:1px solid var(--line);border-radius:16px;max-width:850px;width:calc(100% - 24px);max-height:90dvh;padding:24px;color:var(--ink)}dialog::backdrop{background:#11273699}canvas{display:block;width:100%;touch-action:none;border-radius:8px;cursor:crosshair}#message{position:fixed;left:50%;bottom:25px;transform:translateX(-50%);max-width:90%;background:#233947;color:white;padding:15px 22px;border-radius:10px;z-index:10000;box-shadow:0 5px 20px #0002}footer{border-top:1px solid var(--line);color:var(--muted);font-size:12px;display:flex;justify-content:space-between;margin-top:50px}[hidden]{display:none!important}summary{cursor:pointer;font-weight:650}button:focus-visible,a:focus-visible{outline:3px solid #1995e6;outline-offset:3px}
@media(max-width:700px){header,main,footer{padding:18px}.tag{display:none}nav{gap:0;margin-bottom:22px}nav button{font-size:13px;padding:10px 12px}.hero{grid-template-columns:1fr}.hero h1{font-size:43px}.road-art{height:160px}.road-line{left:40%;top:-180px}.p1{top:20px;left:25%}.p2{top:75px;right:20%}.p3{left:47%;bottom:10px}.stats{grid-template-columns:1fr 1fr;gap:9px}.stat{padding:14px}.stat strong{font-size:29px}.frames,.grid2{grid-template-columns:1fr}.section-title{align-items:flex-start;flex-direction:column;gap:0}.card{align-items:flex-start;flex-direction:column;gap:8px}.panel{padding:17px}.map{height:280px}.actions button{flex-grow:1}.record-status{align-items:flex-start}.record-status span{max-width:65%}.login{margin:25px auto}.split-title{align-items:flex-start;flex-direction:column}dialog{padding:16px}}

.map-feedback{position:absolute;top:12px;left:55px;right:12px;z-index:500;background:#ffffffeb;padding:8px 11px;border-radius:7px;font-size:12px;color:var(--muted);pointer-events:none}
@media(max-width:700px){nav{display:grid;grid-template-columns:1fr 1fr;gap:4px}nav button{text-align:center}.road-art>span{font-size:8px;bottom:5px}.p3{bottom:20px}}