:root{font-family:'Microsoft YaHei','PingFang SC',sans-serif;color:#193447;background:#f3f7f9;font-synthesis:none;--accent:#087c84;--border:#d6e2e7}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,select{cursor:pointer}button,a,input,select{touch-action:manipulation}button{background:white;border:1px solid var(--border);border-radius:7px;padding:9px 13px;color:inherit}button:hover{border-color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #e9a246;outline-offset:3px}a{color:var(--accent);text-decoration:none}header{padding:18px 30px;background:white;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}header>div{display:flex;gap:12px;align-items:center}.brand{display:flex;align-items:center;gap:12px;color:#193447;font-weight:700;font-size:22px}.brand 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text{font-family:inherit;font-size:12px;fill:#526e7d}#chart-note{font-size:12px}aside{display:flex;flex-direction:column;gap:16px;min-width:0}aside>section{background:white;border:1px solid var(--border);border-radius:12px;padding:20px}#detail .symbol{font:54px Georgia;color:var(--accent)}#detail h2{font-size:22px;margin:10px 0}.element-meta{font-size:12px;color:#64808d}.facts{margin:15px 0;display:grid;grid-template-columns:1fr auto;font-size:12px;gap:11px}.facts dt{color:#64808d}.facts dd{margin:0;font-variant-numeric:tabular-nums}.facts dd.current{font-weight:bold;color:var(--accent)}.config{background:#f0f6f7;padding:10px;font-size:12px;overflow-wrap:anywhere}#add{width:100%;background:#e0f1ef;border-color:#99c8c5}.muted{font-size:12px}.compare-row{display:grid;grid-template-columns:30px 1fr auto 22px;gap:7px;align-items:center;margin-top:14px;font-size:12px}.track{height:8px;background:#edf3f5;border-radius:4px;overflow:hidden}.track i{display:block;height:100%;background:var(--accent)}.compare-row button{padding:0;border:0}.exceptions button{display:block;width:100%;text-align:left;margin-top:10px;font-size:13px;background:#f4f8fa}.exceptions button small{display:block;font-size:11px;color:#526e7d;line-height:1.6;margin-top:5px}.exceptions p{font-size:12px}footer{display:flex;justify-content:space-between;font-size:12px;color:#718996;padding:23px 0;gap:10px;flex-wrap:wrap}dialog{border:1px solid var(--border);border-radius:15px;max-width:740px;width:90vw;color:inherit;padding:26px}dialog::backdrop{background:#19344766}.dialog-head{display:flex;justify-content:space-between;align-items:center}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#193447;color:white;padding:12px 20px;border-radius:8px;pointer-events:none;opacity:0}#toast.show{opacity:1}@media(min-width:1600px){.periodic-table{grid-template-rows:24px repeat(7,93px) 12px repeat(2,78px)}}@media(max-width:1200px){.layout{grid-template-columns:1fr}aside{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.periodic-table{min-width:875px}}@media(max-width:650px){header{padding:13px 15px}.brand{font-size:18px}.brand small{font-size:10px}header>div{gap:5px}header>div a,#fullscreen{display:none}header button{font-size:11px;padding:7px}main{padding:18px 12px}h1{font-size:24px}.intro{display:block}.search{display:block;margin-top:15px}.search input{width:100%}#properties{display:grid;grid-template-columns:repeat(3,1fr)}#properties button{padding:10px 5px;font-size:12px}.toolbar{gap:12px}.table-panel{padding:13px}.table-head{align-items:flex-start}.table-head h2{font-size:17px}#direction{font-size:12px}.layout{gap:14px}aside{grid-template-columns:1fr}.table-message h3{font-size:22px}#coverage{margin-left:0}footer{font-size:11px}}

#plot{overflow-x:auto}@media(max-width:650px){.chart-section svg{min-width:760px}}

.intro-title{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.intro-title h1{margin:0}.intro p{margin-top:10px}.compare-entry{background:#087c84;color:white;border-color:#087c84;font-weight:600;padding:11px 19px;white-space:nowrap}.compare-entry:hover{background:#066a72;color:white}button:disabled{opacity:.45;cursor:not-allowed}.primary{background:#087c84;color:white;border-color:#087c84}#compare-picker{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding:16px 20px;margin:0 0 18px;border:1px solid #8dbdbb;border-radius:10px;background:#e9f4f2}#compare-picker[hidden]{display:none}#compare-picker p{font-size:12px;margin:5px 0 0}.chosen-elements{display:flex;gap:7px;flex-wrap:wrap;flex:1}.chosen-elements button{padding:7px 10px;font-size:12px;background:white}.picker-actions{display:flex;gap:8px}.element.picked{outline:3px solid #975ab3;outline-offset:0;z-index:3}.element.picked:after{content:'✓';position:absolute;right:2px;top:2px;font-size:11px;font-weight:bold;color:#704080}.block-legend{display:inline-flex;align-items:center;gap:7px;font-size:12px;padding:5px 7px}.block-legend i{width:13px;height:13px;border-radius:3px;border:1px solid #61798544}.comparison-scroll{overflow:auto;max-width:100%;margin-top:15px}.comparison-table{border-collapse:separate;border-spacing:0;width:100%;min-width:540px;table-layout:fixed;font-size:12px}.comparison-table th,.comparison-table td{border-bottom:1px solid #d6e2e7;padding:13px 10px;text-align:left;vertical-align:top;overflow-wrap:anywhere;line-height:1.65}.comparison-table th{font-weight:500;background:#eef5f6}.comparison-table th:first-child{width:128px;position:sticky;left:0;z-index:1;background:#eef5f6}.comparison-table thead th{font-size:19px;color:#087c84}.comparison-table thead th:first-child{font-size:12px}.comparison-table small{display:block;font-size:12px;color:#526e7d;margin-top:3px}.comparison-table tr:nth-child(even) td{background:#f8fafb}.comparison-result .layout{grid-template-columns:minmax(0,1fr) 440px}#comparison-output .chart-heading{align-items:flex-start}#close-comparison{font-size:11px;white-space:nowrap;padding:7px}#comparison-output[hidden],#detail[hidden],.exceptions[hidden]{display:none}@media(max-width:1200px){.comparison-result .layout{grid-template-columns:1fr}.comparison-result aside{display:block}#comparison-output{width:100%}}@media(max-width:650px){.intro-title{gap:12px}.intro-title h1{font-size:22px}.compare-entry{padding:9px 13px;font-size:12px}#properties{grid-template-columns:repeat(3,1fr)}#compare-picker{padding:12px;gap:12px}#compare-picker strong{font-size:13px}.picker-actions{width:100%}.comparison-table{font-size:11px}.comparison-table th:first-child{width:106px}.comparison-table th,.comparison-table td{padding:11px 8px}}

@media(min-width:1201px){.comparison-result .layout{grid-template-columns:minmax(0,1fr) minmax(440px,min(42vw,620px))}}

.order-list{list-style:none;margin:0;padding:0}.order-list li{padding:20px 0;border-top:1px solid var(--border)}.order-list h3{margin:0 0 12px;font-size:14px;color:#526e7d;font-weight:500}.order-chain{margin:0;font-size:23px;font-weight:600;color:#087c84;line-height:1.8;overflow-wrap:anywhere}.comparison-selected{font-size:13px;color:#526e7d;margin:14px 0}.order-list li:last-child{padding-bottom:4px}@media(min-width:1201px){.comparison-result .layout{grid-template-columns:minmax(0,1fr) 390px}}

@media(max-width:650px){#properties [data-property="metallic"],#properties [data-property="nonmetallic"]{font-size:11px;line-height:1.6}}

.group-axis{font-size:10px;white-space:nowrap;line-height:1.5;letter-spacing:-.04em}
