:root{color-scheme:light;--water:#eaf5fa;--paper:#fff;--navy:#12364b;--ink-soft:#476474;--blue:#087e9a;--line:#c7dce5;--warning:#945009;--warning-bg:#fff3df;--good:#176b57;--good-bg:#e4f4ed;--muted:#e4edf1;font-family:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;color:var(--navy);background:var(--water);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;font-size:16px;line-height:1.65}a{color:var(--navy);text-decoration-thickness:1px;text-underline-offset:4px}a:focus-visible{outline:3px solid var(--blue);outline-offset:5px}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.4}h1{font-size:clamp(25px,3vw,34px);font-weight:700;letter-spacing:.02em}h2{font-size:20px}h3{font-size:18px}small{font-size:13px}.wrap{width:min(1280px,calc(100% - 72px));margin-inline:auto}.skip{position:absolute;left:20px;top:-100px;padding:12px;background:white;z-index:10}.skip:focus{top:10px}.masthead{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-block:28px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:23px;font-weight:700}.brand svg{width:36px;height:42px;color:var(--blue)}.brand small{display:block;font-size:12px;font-weight:400;letter-spacing:.06em;color:var(--ink-soft)}.header-actions{display:flex;align-items:center;gap:24px}.readonly{font-size:13px;border-left:3px solid var(--blue);padding-left:9px;color:var(--ink-soft)}.export{font-size:14px;background:var(--paper);padding:10px 18px;border:1px solid var(--line);border-radius:6px;min-height:44px;display:inline-flex;align-items:center;text-decoration:none}.export:hover{background:#d9eff7;border-color:var(--blue)}
.freshness{padding:19px 24px;background:var(--navy);color:white;border-radius:9px;margin-bottom:24px;display:grid;grid-template-columns:1fr auto;column-gap:24px}.fresh-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.fresh-head strong{font-size:17px}.status-dot{width:10px;height:10px;background:#b2c7d3;border-radius:50%;flex:none}.status-dot.live{background:#9be5cb}.status-dot.stale,.status-dot.unreachable{background:#ffce8f}.source{font-size:12px;padding:2px 9px;border:1px solid #658798;border-radius:4px;color:#e0edf4}.freshness>p{font-size:13px;margin:7px 0 0;color:#d0e3ec;max-width:75ch}.timestamps{grid-column:2;grid-row:1/3;display:flex;flex-direction:column;align-self:center;gap:3px;font-size:12px;color:#d0e3ec}.timestamps time{color:white;font-variant-numeric:tabular-nums;margin-left:6px}
.hero{background:var(--paper);border:1px solid var(--line);border-radius:12px;overflow:hidden}.pond-heading{padding:28px 32px 0;display:flex;justify-content:space-between;gap:18px;align-items:start}.pond-heading p{color:var(--ink-soft);font-size:14px;margin-top:8px}.station{padding:5px 12px;background:var(--water);border-radius:5px;font-size:14px;white-space:nowrap}.hero-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;align-items:stretch;margin-top:18px}.pond-figure{padding:0 26px 16px;min-width:0}.pond{display:block;width:100%;height:auto}.svg-label{font-size:18px;fill:var(--navy);font-weight:600}.svg-small{font-size:14px;fill:var(--ink-soft)}.probe-ring{fill:#dce8ef}.probe-body{fill:#657d8c}.probe-online .probe-ring{fill:#c3eddf}.probe-online .probe-body{fill:var(--good)}.probe-offline .probe-ring{fill:#ffe3b5}.probe-offline .probe-body{fill:var(--warning)}.pond-figure figcaption{display:flex;justify-content:space-between;gap:12px;padding-inline:12px;color:var(--ink-soft);font-size:13px;flex-wrap:wrap}.pond-state{border-left:1px solid var(--line);padding:12px 24px 24px;background:#f7fbfd}.pond-state h2{font-size:15px;display:flex;justify-content:space-between;gap:8px}.pond-state h2 span{font-weight:400;font-size:12px;color:var(--ink-soft)}dl{margin:12px 0}dt{font-size:13px;color:var(--ink-soft)}dd{margin:0;font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}dd small{font-weight:400}dt small{display:block;font-size:11px}.pond-state dl>div{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-block:10px;border-bottom:1px solid var(--line)}.pond-state dl>div:last-child{display:block}.pond-state p{font-size:12px;color:var(--ink-soft);max-width:32ch}
.metrics{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:0;background:var(--paper);border:1px solid var(--line);border-radius:10px;margin-top:24px;overflow:hidden}.metric{padding:24px 28px;min-width:0}.metric+.metric{border-left:1px solid var(--line)}.metric h2{font-size:16px;display:flex;gap:10px;align-items:center}.metric h2 span{font-size:12px;color:var(--ink-soft);font-weight:400}.reading{display:flex;align-items:baseline;gap:10px;margin:8px 0 0;flex-wrap:wrap}.reading strong{font-size:clamp(34px,4vw,48px);letter-spacing:-.04em;font-weight:600;font-variant-numeric:tabular-nums;line-height:1.4}.reading>span{font-size:14px;color:var(--ink-soft)}.metric>p:not(.reading){color:var(--ink-soft);font-size:13px}.metric-rule{height:1px;background:var(--line);margin:16px 0 12px}.density{background:#f2f9fc}.metric.attention .reading strong{color:var(--warning)}
.panel{background:white;border:1px solid var(--line);border-radius:10px;margin-top:24px;padding:26px 30px}.section-heading{display:flex;justify-content:space-between;align-items:start;gap:14px}.section-heading p{font-size:13px;color:var(--ink-soft);margin-top:6px}.quiet-tag{background:var(--water);padding:4px 10px;border-radius:4px;color:var(--ink-soft);font-size:12px;flex-shrink:0}.context-note{color:var(--ink-soft);font-size:13px;margin-top:12px;max-width:90ch}.charts{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:26px}.chart{min-width:0}.chart figcaption{display:flex;align-items:center;justify-content:space-between;gap:10px}.chart h3 small{font-weight:400;color:var(--ink-soft);margin-left:7px}.chart figcaption>span{font-size:13px;color:var(--ink-soft)}.chart svg{width:100%;height:auto;display:block;margin-top:14px;overflow:visible}.chart>p{font-size:13px;color:var(--ink-soft);margin-top:4px}.chart text{font-family:inherit;fill:var(--ink-soft);font-size:13px}.chart .trace{stroke:var(--blue);stroke-width:2.5;fill:none;stroke-linecap:round;stroke-linejoin:round}.chart .point{fill:var(--blue)}.chart .grid{stroke:var(--line);stroke-width:1}.chart .threshold{stroke:var(--warning);stroke-width:1.2;stroke-dasharray:5 5}.chart-legend{font-size:12px;color:var(--ink-soft);display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;margin-top:18px}.legend-line,.legend-dash{width:20px;border-top:2px solid var(--blue);display:inline-block}.legend-dash{border-top:2px dashed var(--warning);margin-left:12px}.advice{border-left:4px solid var(--blue)}.advice.historical{border-left-color:var(--warning)}.advice.historical #advice-tag{color:var(--warning);background:var(--warning-bg)}#condition{font-size:16px;margin-top:14px;font-weight:600}#recommendations{margin:12px 0 0;padding-left:22px;max-width:85ch}#recommendations li{padding:3px 0;font-size:14px;overflow-wrap:anywhere}footer{display:flex;justify-content:space-between;gap:12px;color:var(--ink-soft);font-size:12px;padding:23px 2px 36px;flex-wrap:wrap}.noscript{margin:20px;padding:20px;background:var(--warning-bg);color:var(--warning)}.historical-value{color:var(--ink-soft)}
@media(min-width:1450px){.pond{max-height:342px}}
@media(max-width:1000px){.wrap{width:calc(100% - 40px)}.hero-layout{grid-template-columns:minmax(0,1fr) 235px}.pond-state{padding-inline:18px}.metric{padding:22px}.pond-heading{padding:24px 24px 0}.pond-figure{padding-inline:12px}.charts{gap:20px}.freshness{grid-template-columns:1fr}.timestamps{grid-column:1;grid-row:auto;flex-direction:row;flex-wrap:wrap;gap:6px 22px;margin-top:10px}}
@media(max-width:760px){.wrap{width:calc(100% - 28px)}.masthead{padding-block:20px;gap:12px}.brand{font-size:20px;gap:8px}.brand svg{width:29px}.brand small{font-size:10px}.header-actions{gap:8px}.readonly{display:none}.export{padding:9px 11px;font-size:12px}.freshness{padding:17px 18px;margin-bottom:16px}.source{font-size:11px}.fresh-head strong{font-size:15px}.freshness>p{font-size:12px}.timestamps{font-size:11px}.hero-layout{display:block;margin-top:12px}.pond-heading{padding:22px 20px 0;gap:8px}.pond-heading p{font-size:12px;max-width:25ch}.station{font-size:12px;padding:4px 8px}.pond-figure{padding:0 6px 15px}.pond-figure figcaption{font-size:12px}.pond-state{border-left:0;border-top:1px solid var(--line);padding:16px 20px}.pond-state dl{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;margin:8px 0}.pond-state dl>div,.pond-state dl>div:last-child{display:block;padding:10px 0}.pond-state p{max-width:none}.pond-state dd{font-size:19px}.metrics{grid-template-columns:1fr 1fr;margin-top:16px}.metric{padding:20px}.metric.density{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}.reading strong{font-size:38px}.metric h2{font-size:15px}.metric p{font-size:12px}.panel{margin-top:16px;padding:22px 20px}.section-heading h2{font-size:18px}.quiet-tag{font-size:11px}.charts{grid-template-columns:1fr;gap:25px;margin-top:24px}.chart+.chart{padding-top:22px;border-top:1px solid var(--line)}footer{display:block;padding:20px 2px 28px}footer p+p{margin-top:5px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.legend-item{display:inline-flex;align-items:center;gap:8px}.legend-item .legend-dash{margin-left:0}
.scene-nav{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:22px;padding-bottom:8px}.scene-nav a{flex:1;max-width:200px;min-height:44px;display:flex;align-items:center;justify-content:center;padding:8px 12px;font-size:15px;text-decoration:none;border-radius:5px}.scene-nav a[aria-current=page]{background:var(--navy);color:white;font-weight:700}.scene-nav a:hover{box-shadow:inset 0 0 0 1px var(--blue)}@media(max-width:400px){.scene-nav a{font-size:14px;padding-inline:6px}}