:root{--ink:#193c3b;--muted:#778684;--line:#e1e8e4;--green:#167c68;--bg:#f5f7f3}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC',sans-serif;font-size:14px}header{height:88px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 5%}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:700;font-size:18px}.brand small{display:block;font-size:9px;letter-spacing:3px;margin-top:5px}.logo{width:43px;height:43px;border-radius:13px;background:var(--ink);color:white;display:grid;place-items:center;font-size:34px;font-weight:400}.headright{display:flex;gap:22px;align-items:center;font-size:12px}.live{color:var(--green);display:flex;gap:8px;align-items:center}.live i{width:6px;height:6px;background:#29a27c;border-radius:50%;box-shadow:0 0 0 4px #eaf6f0}.divider{height:24px;border-left:1px solid var(--line)}.beijing b{font-size:17px;margin-left:12px;font-variant-numeric:tabular-nums}main{max-width:1500px;padding:42px 5% 24px;margin:auto}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--green);font-weight:700}h1{font-size:34px;letter-spacing:-1px;margin:14px 0 12px;font-weight:650}h1 span{color:#42a18b}p{color:var(--muted);line-height:1.7;margin:6px 0;font-size:12px}h2{font-size:17px;margin:0 0 8px;font-weight:650}h3{margin:0 0 7px;font-size:16px}.button{background:white;border:1px solid #d9e3dd;border-radius:7px;padding:10px 15px;color:var(--ink);cursor:pointer;font:inherit;font-size:12px;white-space:nowrap}.button:hover{border-color:var(--green);background:#edf5f0}.button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #248d76;outline-offset:3px}.primary{background:var(--ink);color:white}.map-panel{background:white;border:1px solid var(--line);border-radius:14px;overflow:hidden}.panel-head{display:flex;justify-content:space-between;align-items:center;padding:24px 28px 0}.pill{font-size:10px;color:#70847d;background:#f2f5f1;border-radius:4px;padding:5px 7px;margin-left:8px;font-weight:400}.map-legend{display:flex;gap:18px;font-size:11px;color:var(--muted)}#mapwrap{max-width:1130px;margin:0 auto;background:radial-gradient(ellipse,#f6f8f4 0%,#fff 70%)}#map{width:100%;display:block;max-height:590px}.map-note{padding:13px 25px;background:#fcfdfb;border-top:1px solid #eef1eb;color:#84908b;font-size:10px;display:flex;justify-content:space-between;gap:15px}.state{stroke:#fff;stroke-width:1.5}.state-label{font-size:9px;fill:#34564f;pointer-events:none;opacity:.75}.map-clock rect{fill:white;stroke:#dce5de;stroke-width:1;filter:drop-shadow(0 3px 5px #2146370b)}.map-clock .title{font-size:11px;fill:#526d63}.map-clock .time{font-size:25px;font-weight:650;letter-spacing:.2px;fill:#183e36;font-variant-numeric:tabular-nums}.map-clock .date{font-size:9px;fill:#829187}.clocks{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin:18px 0 30px}.clock{background:white;border:1px solid var(--line);border-radius:9px;padding:17px 13px;position:relative;overflow:hidden}.clock:before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--color)}.clock-head{font-size:11px;display:flex;justify-content:space-between;gap:5px}.clock-city{font-size:10px;color:var(--muted);margin:8px 0 13px}.clock-time{font-size:26px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-1px}.clock-date{color:var(--muted);font-size:10px;margin-top:7px}.clock-offset{color:#729084;font-size:10px;margin-top:13px}.planner{background:#fff;border:1px solid var(--line);border-radius:13px;padding:27px}.planner-title h2{margin-top:12px;font-size:21px}.controls{margin:22px 0;display:flex;align-items:center;gap:15px}label{font-size:11px;color:#75867e;display:flex;flex-direction:column;gap:8px}input,select{border:1px solid #dce4de;border-radius:6px;background:#fbfcf9;color:var(--ink);padding:9px 12px;font:inherit;font-size:13px}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{background:#f5f7f3;padding:13px 15px;font-size:10px;color:#7e8c83;font-weight:500}td{padding:14px 15px;border-bottom:1px solid #eef1ec;font-variant-numeric:tabular-nums}td small{display:block;font-size:10px;color:var(--muted);margin-top:5px}.status{font-size:10px;color:#7f8d84;padding:5px 8px;background:#f3f5f1;border-radius:4px}.status.on{color:#197254;background:#e6f3e9}.planner-foot{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:20px;color:var(--muted);font-size:11px}.hint{font-size:10px}.simulation{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:25px 0;padding:24px;background:#eaf0e8;border-radius:10px}.simulation>div:last-child{display:flex;gap:8px;flex-wrap:wrap}details{font-size:12px;padding:12px 0;color:#718277}summary{cursor:pointer}.extras{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:20px 0}.extra{background:white;padding:14px;border-radius:7px}.extra b{display:block;margin-top:10px;font-size:21px}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:25px;padding-top:24px;font-size:10px;letter-spacing:1px}a{color:inherit}.muted{color:#99a299}#simerror{color:#aa4a32;font-size:11px}@media(min-width:1600px){main{padding-top:50px}}@media(max-width:1000px){.clocks{grid-template-columns:repeat(4,1fr)}.simulation{align-items:start;flex-direction:column}.clock-time{font-size:29px}}@media(max-width:650px){header{height:auto;padding:18px 5%;align-items:start}.headright{flex-direction:column;gap:12px;align-items:end}.divider{display:none}.beijing{font-size:10px}.beijing b{font-size:12px;margin-left:5px}.brand{font-size:14px}.logo{width:34px;height:34px;font-size:27px}main{padding:28px 4%}h1{font-size:25px}.intro{align-items:start;gap:10px}.intro .button{padding:8px;font-size:10px}.panel-head{padding:18px 15px 0}.panel-head h2{font-size:14px}.pill{display:none}.map-legend{display:none}.map-note{padding:10px;font-size:9px;flex-direction:column;gap:4px}.clocks{grid-template-columns:repeat(2,1fr)}.clock:last-child{grid-column:span 2}.clock-time{font-size:30px}.planner{padding:18px 13px}.planner-title h2{font-size:18px}.controls{flex-wrap:wrap;gap:10px}.tablewrap{overflow:auto}table{min-width:720px}.planner-foot{flex-direction:column;align-items:start}.extras{grid-template-columns:repeat(2,1fr)}footer{font-size:8px;gap:10px}}

/* Unboxed map labels keep state boundaries visible. */
.map-clock text{paint-order:stroke fill;stroke:#f9fcf7;stroke-width:4px;stroke-linejoin:round}.map-clock .title{font-size:11px;font-weight:550;fill:#34564b}.map-clock .time{font-size:26px;font-weight:650;fill:#163f35;stroke-width:5px}.map-clock .date{font-size:10px;fill:#4f7164;stroke-width:3px}

.zone-legend{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin:18px 24px 0;font-size:11px}.zone-legend span{color:var(--zone-color);display:flex;align-items:center;gap:6px;font-weight:600}.zone-legend i{width:20px;border-top:3px solid var(--zone-color);border-radius:2px}.map-clock .title,.map-clock .time{fill:var(--zone-color)}.map-clock .date{font-size:10px}.clock-head strong,.clock-time{color:var(--color)}.daypart{font-size:10px;background:#f3f5ef;border-radius:4px;padding:3px 5px;white-space:nowrap}.clocks{grid-template-columns:repeat(4,1fr)}.clock-head{align-items:center}.clock-time{font-size:28px}.daypart-legend{display:flex;flex-wrap:wrap;gap:12px;margin:15px 0}.daypart-legend>span{background:#fff;border:1px solid var(--line);border-radius:7px;padding:12px 16px}.daypart-legend small{display:block;color:var(--muted);margin-top:7px;font-size:10px}.attribution{font-size:10px;margin-top:15px}.state-label{opacity:.6}@media(max-width:650px){.zone-legend{gap:10px 16px;font-size:10px;margin:14px 12px 0}.clocks{grid-template-columns:repeat(2,1fr)}.clock:last-child{grid-column:auto}.clock-head{flex-wrap:wrap;gap:6px}.daypart-legend>span{padding:10px}.map-clock .date{font-size:11px}}

/* Region-centred labels and high-contrast day/night signals. */
.map-daypart rect{filter:none;stroke:none}.map-daypart.day rect{fill:#fff0b5}.map-daypart.night rect{fill:#333d6e}.map-clock .map-daypart text{stroke:none;paint-order:normal;font-family:Arial,'PingFang SC',sans-serif}.map-daypart .phase-icon{font-size:22px;font-weight:600}.map-daypart .phase-label{font-size:12px;font-weight:600}.map-daypart.day text{fill:#855507}.map-daypart.night text{fill:#fff}.map-clock .title{font-size:12px}.map-clock .time{font-size:28px}.map-clock .date{font-size:10px}.daypart{display:flex;align-items:center;gap:8px;padding:7px 11px;border-radius:9px;font-size:12px;line-height:1.2}.daypart b{font-size:27px;font-family:Arial,sans-serif;line-height:1}.daypart small{display:block;font-size:10px;margin-top:4px;opacity:.8}.daypart.day{background:#fff0b5;color:#855507}.daypart.night{background:#333d6e;color:#fff}.clock-head{min-height:42px}.clock-city{margin-top:4px}@media(max-width:650px){.daypart{padding:6px 8px;gap:5px}.daypart b{font-size:23px}.clock-head strong{font-size:11px}}