:root{--ink:#e9f2f5;--muted:#8b9bab;--mint:#a4edcf;--cyan:#a2d9ff;--line:#a8c9d91a;--spring:cubic-bezier(.2,1.45,.35,1);font:13px/1.55 'Microsoft YaHei','PingFang SC',system-ui,sans-serif;color:var(--ink);background:#02060b;color-scheme:dark}*{box-sizing:border-box}body{margin:0;overflow:hidden}button,input,select{font:inherit}button{color:inherit;border:0;background:transparent;cursor:pointer;transition:transform .42s var(--spring),background .25s,color .25s,box-shadow .25s;touch-action:manipulation}button:hover{background:#d0e9ff12;color:#fff;box-shadow:0 5px 18px #0003}button:active{transform:scale(.91)}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--mint);outline-offset:3px}input{min-width:0;color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:8px;background:#07101a99}select{border:1px solid var(--line);border-radius:6px;background:#14202b;padding:4px;color:var(--ink)}.glass{background:linear-gradient(140deg,#0e1c2bd9,#08121fe3);border:1px solid #b3d1e322;box-shadow:0 18px 65px #0005,inset 0 1px 0 #ffffff04;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}#universe{position:fixed;inset:0}canvas{display:block;width:100%;height:100%;touch-action:none}#labels{position:absolute;inset:0;pointer-events:none;overflow:hidden}.geo-label{position:absolute;left:0;top:0;white-space:nowrap;font-size:10px;text-shadow:0 2px 6px #000,0 0 3px #000;will-change:transform;pointer-events:none}.geo-label.major{font-size:12px;font-weight:500}.geo-label.admin{font-size:11px;color:#f2f2d9;background:#06101b60;border-radius:5px;padding:2px 5px}.geo-label.city{pointer-events:auto;cursor:pointer;background:#07142499;border:1px solid #a8c9d92b;border-radius:20px;padding:3px 9px;color:#bce9de;transition:font-size .3s var(--spring),box-shadow .3s}.geo-label.city:hover{font-size:13px;box-shadow:0 0 20px #8becc34d}#tooltip{position:absolute;padding:6px 11px;border-radius:7px;background:#06101dda;border:1px solid var(--line);pointer-events:none;font-size:11px;color:#c7e3ef;opacity:0;transition:opacity .18s;z-index:3}.masthead{position:fixed;top:25px;left:30px;right:30px;display:flex;align-items:center;justify-content:space-between;pointer-events:none}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;pointer-events:auto;letter-spacing:2px;font-size:20px;font-weight:600}.brand small{display:block;font-size:8px;letter-spacing:3px;color:#94a8b8;margin-top:2px;font-weight:400}.brand-icon{font-size:32px;color:var(--mint)}.live-pill{display:flex;align-items:center;gap:8px;padding:5px 11px;font-size:10px;border:1px solid #b0d8b92b;border-radius:20px;background:#06131a99;color:#aecfca;letter-spacing:1px}.live-pill i{width:5px;height:5px;background:var(--mint);border-radius:50%;box-shadow:0 0 10px #87f4c9}.main-panel{position:fixed;top:103px;left:30px;width:258px;border-radius:18px;padding:17px 18px;max-height:calc(100dvh - 245px);overflow:auto;scrollbar-width:thin;transform-origin:0 0;transition:transform .7s var(--spring),opacity .4s}.main-panel.closed{transform:translateX(-330px) scale(.94);opacity:0;pointer-events:none}.panel-top{display:flex;align-items:center;gap:6px;justify-content:space-between}.eyebrow{font-size:10px;letter-spacing:2px;color:#98adbd}.icon-button{width:25px;height:25px;border-radius:7px;font-size:18px;line-height:1}.time-display{font-size:31px;line-height:1.25;letter-spacing:1px;font-variant-numeric:tabular-nums;margin-top:10px;font-weight:300}.time-display small{display:block;color:#8d9dac;font-size:9px;letter-spacing:1px;margin-top:5px}.date-display{color:#b1c0cc;font-size:10px;margin:7px 0 14px;letter-spacing:1px}.segmented{display:flex;background:#03091177;padding:3px;border-radius:9px;border:1px solid var(--line)}.segmented button{flex:1;padding:7px 0;font-size:10px;border-radius:6px;white-space:nowrap}.segmented .active{background:#accfbd22;color:var(--mint);box-shadow:inset 0 0 0 1px #afd7c42c}.section-title{display:flex;justify-content:space-between;margin:18px 0 10px;font-size:11px;color:#c2d2dc}.section-title span{font-size:9px;color:#718797}.season-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.season-grid button{padding:9px 0 6px;border-radius:9px;border:1px solid var(--line);font-size:10px}.season-grid button>span{display:block;font-size:18px;line-height:1.2;color:#d7d8b4;margin-bottom:5px}.season-grid small{display:block;font-size:7px;color:#8596a3;margin-top:2px}.season-grid button.active{border-color:#9ee9c988;background:#94d9b91a}.date-row{margin-top:12px;display:flex;gap:5px;flex-wrap:wrap}.date-row label{width:100%;color:var(--muted);font-size:9px}.date-row input{width:176px;font-size:9px;padding:5px}.date-row button{border:1px solid var(--line);border-radius:7px;font-size:10px}.solar-card{display:flex;align-items:center;gap:11px;padding:12px 0 8px;margin-top:7px;border-bottom:1px solid var(--line)}.sun-dot{font-size:25px;color:#f3d590}.solar-card small{display:block;color:#869bab;font-size:9px}.solar-card strong{font-size:12px;color:#e8dcae;font-weight:500;font-variant-numeric:tabular-nums}.science-note{font-size:8px;color:#6b8496;line-height:1.7;margin:7px 0 0}.lesson-row{display:flex;gap:5px;flex-wrap:wrap}.lesson-row button{border:1px solid var(--line);border-radius:6px;padding:5px;font-size:9px}.city-clocks{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:17px;border-top:1px solid var(--line);padding-top:13px}.clock-item{display:flex;justify-content:space-between;gap:5px;font-size:10px}.clock-item span{color:#8399a8}.clock-item strong{font-weight:400;font-variant-numeric:tabular-nums}.quiet{color:#8eabbd;border-top:1px solid var(--line);font-size:10px;margin-top:11px;padding-top:10px}.wide{width:100%}.reopen{position:fixed;top:104px;left:30px;padding:9px 14px;border-radius:12px;font-size:21px}.layer-panel{position:fixed;right:30px;top:103px;width:196px;padding:14px 15px;border-radius:17px;max-height:calc(100dvh - 330px);overflow:auto;scrollbar-width:thin;transition:box-shadow .3s}.drag-handle{cursor:grab;touch-action:none}.drag-handle:active{cursor:grabbing}.drag-icon{color:#55748b;margin-left:auto}.layer-body{max-height:800px;overflow:hidden;opacity:1;transition:max-height .6s var(--spring),opacity .3s}.layer-panel.folded .layer-body{max-height:0;opacity:0}.layer-group-title{font-size:8px;letter-spacing:2px;color:#5f7f95;margin:12px 0 7px}.layer-switch{display:flex;align-items:center;gap:8px;width:100%;text-align:left;padding:6px 1px;font-size:10px;border-radius:6px}.layer-switch>span:first-child{color:#7ca7bb;width:16px;text-align:center}.layer-switch b{font-weight:400;flex:1}.switch-track{width:25px;height:14px;background:#31445766;border:1px solid #6f839329;border-radius:9px;position:relative;transition:background .3s}.switch-track::after{content:'';position:absolute;width:8px;height:8px;border-radius:50%;background:#84919e;top:2px;left:2px;transition:transform .4s var(--spring),background .3s}.layer-switch[aria-pressed=true] .switch-track{background:#7cd8b733;border-color:#7fe0bb55}.layer-switch[aria-pressed=true] .switch-track::after{transform:translateX(10px);background:#a1eccb}.grid-spacing{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);margin-top:9px;padding-top:10px;font-size:9px;color:var(--muted)}.view-switch{position:fixed;top:27px;left:50%;transform:translateX(-50%);border-radius:13px;display:flex;padding:4px;gap:3px}.view-switch button{padding:8px 14px;border-radius:8px;font-size:11px;color:#8aa1b2}.view-switch button span{margin-right:7px}.view-switch button.active{color:#d3f6e5;background:#91ddb921;box-shadow:inset 0 0 0 1px #bbdfcd16}.info-card{position:fixed;right:30px;bottom:151px;width:268px;padding:15px 17px;border-radius:16px;transition:transform .5s var(--spring)}.info-card .eyebrow{font-size:8px;letter-spacing:1px}h2{font-size:20px;font-weight:500;letter-spacing:1px;margin:8px 0 3px}.coordinate-value{font-size:16px;font-weight:300;letter-spacing:1px;font-variant-numeric:tabular-nums;margin:6px 0;color:#c4e4f5}.dms-value{font-size:9px;color:#7a9ab0;margin:3px 0}.time-pair{display:flex;gap:20px;padding:12px 0 8px;margin-top:9px;border-top:1px solid var(--line)}.time-pair small{font-size:8px;color:#7894a8;display:block}.time-pair strong{display:block;font-size:18px;font-weight:400;font-variant-numeric:tabular-nums;margin-top:3px}.offset-note{font-size:8px;color:#8ca2b2;line-height:1.6;margin:1px 0 8px}.measure-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:9px;gap:6px}.measure-row button{font-size:10px;color:#add7d0;padding:0}.measure-row span{font-size:9px;color:#708c9c}.search-wrap{position:fixed;bottom:42px;left:50%;transform:translateX(-50%);width:min(550px,calc(100vw - 50px));z-index:5}.search-bar{border-radius:15px;display:flex;align-items:center;gap:8px;padding:7px 8px 7px 17px;box-shadow:0 15px 60px #000b}.search-icon{font-size:24px;color:#97b7c6}.search-bar input{flex:1;background:none;border:0;font-size:12px;padding:9px 3px;outline-offset:0}.search-bar input::placeholder{color:#77909f}.go-button{background:#b4e7ce;border:1px solid #c7f6de;color:#122c26;padding:9px 16px;border-radius:9px;font-size:11px;font-weight:600;white-space:nowrap}.go-button:hover{background:#d2f8e2;color:#122c26;box-shadow:0 0 24px #a2f5d02a}.go-button span{margin-left:10px}#coordinateToggle{border:1px solid var(--line);border-radius:8px;font-size:18px;padding:4px 9px;color:#9ab8c8}.quick-search{display:flex;justify-content:center;gap:12px;font-size:9px;color:#546f82;margin-top:8px}.quick-search button{font-size:9px;color:#819bad;padding:0 2px}.quick-search span{color:#526d81}.coordinate-form{position:absolute;bottom:83px;left:0;right:0;border-radius:13px;display:flex;align-items:end;gap:10px;padding:15px}.coordinate-form[hidden]{display:none}.coordinate-form label{font-size:10px;color:#a0b4c2;flex:1;min-width:0}.coordinate-form input{width:100%;margin-top:4px;font-size:12px}.candidates{position:absolute;bottom:83px;left:0;right:0;border-radius:13px;padding:7px;max-height:320px;overflow:auto;animation:popup .45s var(--spring)}.candidates button{display:block;text-align:left;width:100%;padding:10px 12px;border-radius:8px;font-size:12px}.candidates small{display:block;color:#7797ad;font-size:10px;margin-top:2px}.lesson-card{position:fixed;left:310px;bottom:151px;width:270px;border-radius:14px;padding:15px 17px;animation:popup .6s var(--spring)}.lesson-card>button{float:right}.lesson-card strong{font-size:13px}.lesson-card p{font-size:10px;color:#a2b6c4;line-height:1.8;margin-bottom:0}.legend-item{display:flex;gap:7px;font-size:10px;color:#b8c7d0;margin-top:6px}.legend-item i{width:7px;height:7px;border-radius:2px;margin-top:5px}.legend-item small{color:#7893a6;display:block;font-size:9px}footer{position:fixed;left:30px;right:30px;bottom:13px;display:flex;gap:14px;align-items:center;font-size:8px;color:#536d80;pointer-events:none}footer button{pointer-events:auto;color:#86a5b9;font-size:9px;padding:0}#performance{margin-left:auto}#toast{position:fixed;top:89px;left:50%;transform:translate(-50%,-15px);opacity:0;background:#101e2af0;border:1px solid #8faabd40;box-shadow:0 10px 30px #0006;border-radius:10px;padding:10px 18px;max-width:min(520px,90vw);font-size:12px;pointer-events:none;transition:transform .55s var(--spring),opacity .3s;z-index:20}#toast.visible{opacity:1;transform:translate(-50%,0)}dialog{color:var(--ink);border-radius:20px;width:min(530px,calc(100vw - 35px));padding:28px}dialog p{color:#a1b6c6;font-size:12px;line-height:1.85}dialog::backdrop{background:#0009;backdrop-filter:blur(7px)}dialog>button{float:right}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@keyframes popup{from{opacity:0;transform:translateY(15px) scale(.95)}to{opacity:1;transform:none}}.number-change{animation:numberPulse .35s ease-out}@keyframes numberPulse{from{opacity:.4;transform:translateY(3px)}to{opacity:1;transform:none}}
@media(min-width:1500px){.main-panel{left:40px;top:112px;width:275px}.layer-panel{right:40px;top:112px}.info-card{right:40px}.masthead{left:40px;right:40px}}
@media(max-height:850px) and (min-width:800px){.main-panel{max-height:calc(100dvh - 220px)}.city-clocks{display:none}.layer-panel{max-height:calc(100dvh - 335px);padding-top:10px}.layer-switch{padding:4px 1px}.layer-group-title{margin:7px 0 3px}.info-card{bottom:135px}.info-card h2{font-size:17px}.info-card .time-pair{padding-top:8px}.lesson-card{bottom:135px}}
@media(max-width:1050px){.main-panel{width:228px;left:20px;padding:13px}.layer-panel{right:20px;width:174px;padding:12px}.info-card{right:20px;width:235px}.lesson-card{left:20px;width:235px;bottom:145px}.masthead{left:20px;right:20px}.brand{font-size:17px}.view-switch button{padding:7px 9px;font-size:10px}.date-row input{width:161px}.quick-search span{display:none}}
@media(max-width:760px){.masthead{top:17px;left:17px;right:17px}.brand{font-size:17px}.brand small{font-size:6px}.brand-icon{font-size:27px}.live-pill{font-size:8px}.view-switch{top:78px;width:auto;max-width:95vw;white-space:nowrap}.view-switch button{padding:6px 10px;font-size:10px}.view-switch button span{display:none}.main-panel{top:128px;left:12px;width:230px;max-height:calc(100dvh - 320px);z-index:6;transform:translateX(-280px);opacity:0;pointer-events:none}.main-panel.mobile-open{transform:none;opacity:1;pointer-events:auto}.main-panel.closed{transform:translateX(-280px)}.reopen{top:128px;left:12px;z-index:5;padding:5px 11px;font-size:20px}.layer-panel{top:128px;right:12px;width:172px;max-height:calc(100dvh - 335px);z-index:6}.layer-panel .layer-body{max-height:0;opacity:0}.layer-panel.mobile-open .layer-body{max-height:700px;opacity:1}.layer-panel .eyebrow{font-size:9px}.info-card{bottom:137px;right:12px;width:212px;padding:10px 13px;pointer-events:none}.info-card button{pointer-events:auto}.info-card h2{font-size:15px;margin:4px 0}.coordinate-value{font-size:12px;margin:4px 0}.dms-value{font-size:8px}.time-pair{padding-top:7px;margin-top:6px;gap:14px}.time-pair strong{font-size:15px}.time-pair small{font-size:7px}.offset-note{font-size:7px}.measure-row span{font-size:8px}.info-card .eyebrow{font-size:7px}.search-wrap{bottom:39px;width:calc(100vw - 24px)}.search-bar{gap:6px;padding-left:12px}.search-bar input{font-size:11px}.go-button{padding:9px 12px;font-size:10px}.search-icon{display:none}.quick-search{font-size:8px;gap:16px}.quick-search button{font-size:8px}footer{left:13px;right:13px;bottom:12px;font-size:7px;gap:10px}#performance{display:none}.lesson-card{left:12px;bottom:137px;width:calc(100vw - 247px);min-width:120px;padding:12px}.lesson-card p{font-size:9px}.lesson-card strong{font-size:11px}.legend-item{font-size:9px}.legend-item small{display:none}#toast{top:117px;max-width:90vw;font-size:11px}.coordinate-form{gap:7px;padding:10px}.coordinate-form input{font-size:10px}.geo-label{font-size:8px}.geo-label.admin{font-size:9px}}
.layer-panel{max-height:calc(100dvh - 520px)}
dialog[open]{animation:popup .5s var(--spring)}
@media(max-width:760px){.layer-panel{max-height:max(180px,calc(100dvh - 510px))}}
@media(max-width:760px){.info-card.idle .coordinate-value,.info-card.idle .dms-value,.info-card.idle .time-pair,.info-card.idle .offset-note{display:none}.info-card.idle{padding:9px 12px}.info-card.idle h2{font-size:12px}.info-card.idle .measure-row{padding-top:5px;margin-top:5px}.info-card.idle .panel-top{height:16px}}
.rolling-clock{display:inline-flex;line-height:1.25;vertical-align:top;font-variant-numeric:tabular-nums}.digit-window{display:inline-block;height:1.25em;width:.62em;overflow:hidden;vertical-align:top}.digit-stack{display:flex;flex-direction:column;will-change:transform}.digit-stack>span{display:block;height:1.25em;line-height:1.25em;text-align:center;flex-shrink:0}button.active{color:var(--mint)}
@media(prefers-reduced-motion:reduce){button,.main-panel,.layer-body,#toast{transition-duration:.01s}.number-change,.candidates,.lesson-card{animation:none}}