/* Public toolbox (/products/tools/). Builds on the site tokens from app.css (--surface, --line, --primary ...). */
.tools-page{--good:#15905c;--bad:#cf3f3f;--warn:#b7791f;--tool-bg:#e6f5f9;--tool-fg:#25839f;padding-top:22px;padding-bottom:70px;font-variant-numeric:tabular-nums}
:root[data-theme=dark] .tools-page{--good:#4cc790;--bad:#ff8c8c;--warn:#f0b956;--tool-bg:#1b3540;--tool-fg:#7fd0e6}
.tools-page [data-tone=good]{color:var(--good)!important}.tools-page [data-tone=bad]{color:var(--bad)!important}.tools-page [data-tone=warn]{color:var(--warn)!important}
.tools-crumbs{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:12px;color:var(--muted);margin-bottom:22px}
.tools-crumbs a:hover{color:var(--primary)}.tools-crumbs b{color:var(--text);font-weight:600}
.tool-icon{width:42px;height:42px;border-radius:12px;background:var(--tool-bg);color:var(--tool-fg);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.tool-icon.big{width:56px;height:56px;border-radius:15px}.tool-icon.big svg.icon{width:27px;height:27px}

/* index */
.tools-hero{max-width:780px;margin:8px 0 28px}.tools-hero h1{font-size:42px;margin-bottom:14px}.tools-hero p{color:var(--muted);font-size:14px;line-height:1.9}
.live-strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}
.live-strip>div,.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;min-width:0}
.live-strip small,.stat small{display:block;color:var(--muted);font-size:11px}
.live-strip b,.stat b{display:block;font-size:20px;font-weight:700;letter-spacing:-.4px;margin:4px 0 2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.live-strip b.long-num{font-size:17px;letter-spacing:-.3px}
.live-strip span,.stat span{display:block;color:var(--muted);font-size:11px;line-height:1.6;overflow-wrap:anywhere}
.live-status{font-size:11px;color:var(--muted);margin:8px 0 22px;line-height:1.7}.live-status[data-state=error]{color:var(--warn)}
.tools-group{margin-top:30px}.tools-group>h2{font-size:18px;margin-bottom:14px;letter-spacing:-.3px}
.tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tool-card{display:flex;flex-direction:column;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;transition:transform .18s,box-shadow .18s}
.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tool-card h3{font-size:16px;margin-bottom:5px}.tool-card p{font-size:12px;color:var(--muted);line-height:1.75}
.tool-card .card-link{margin-top:auto;font-size:12px;color:var(--primary);display:inline-flex;gap:6px;align-items:center}.tool-card .card-link svg{width:16px;height:16px}

/* tool page */
.tool-head{display:flex;gap:16px;align-items:center;margin-bottom:4px}.tool-head h1{font-size:30px;letter-spacing:-.8px;line-height:1.35}.tool-head p{color:var(--muted);font-size:13px;line-height:1.7}
.tool-layout{display:grid;grid-template-columns:minmax(300px,390px) minmax(0,1fr);gap:20px;align-items:start}
.tool-form{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:4px 18px 18px;min-width:0}
.tool-form fieldset{border:0;border-bottom:1px solid var(--line);margin:0;padding:14px 0 10px;min-width:0}
.tool-form fieldset:last-of-type{border-bottom:0}
.tool-form legend{float:left;width:100%;padding:0;margin-bottom:6px;font-size:11px;font-weight:650;letter-spacing:1px;color:var(--primary)}
.field{display:grid;grid-template-columns:104px minmax(0,1fr);align-items:center;column-gap:10px;margin:8px 0;font-size:12px;clear:both}
.field>span:first-child{color:var(--muted);line-height:1.4}
.field.is-live>span:first-child:after{content:'实时';margin-left:5px;padding:0 4px;border-radius:4px;font-size:9px;color:var(--good);border:1px solid currentColor;vertical-align:1px}
.field .hint{grid-column:2;color:var(--muted);font-size:11px;line-height:1.55;margin-top:4px}
.tools-page .input-unit{display:flex;align-items:stretch;min-width:0;border:1px solid var(--line);border-radius:8px;background:var(--surface);overflow:hidden}
.tools-page .input-unit:focus-within,.tools-page .field>select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.tools-page .input-unit input{flex:1;min-width:0;width:100%;border:0;outline:none;background:transparent;color:var(--text);padding:8px 10px;font-size:13px}
.tools-page .input-unit em{font-style:normal;display:flex;align-items:center;padding:0 9px;font-size:11px;color:var(--muted);background:var(--bg);border-left:1px solid var(--line);white-space:nowrap}
.tools-page .input-unit em.pre{border-left:0;border-right:1px solid var(--line)}
.tools-page .input-unit select{border:0;border-left:1px solid var(--line);background:var(--bg);color:var(--text);font-size:11px;padding:0 6px;outline:none;max-width:52%}
.tools-page .field>select{width:100%;min-width:0;border:1px solid var(--line);border-radius:8px;padding:8px 9px;background:var(--surface);color:var(--text);font-size:12.5px;outline:none}
.tools-page input[type=number]{-moz-appearance:textfield;appearance:textfield}
.tools-page input::-webkit-outer-spin-button,.tools-page input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.check-field{display:flex;gap:8px;align-items:flex-start;font-size:12px;color:var(--text);margin:10px 0;line-height:1.6}.check-field input{margin-top:3px}
.mode-card{clear:both;border:1px solid var(--line);border-radius:10px;padding:8px 12px 4px;margin:8px 0}
.mode-card>b{display:flex;align-items:center;gap:8px;font-size:13px}.mode-card>b i{width:9px;height:9px;border-radius:50%;display:inline-block}
.mode-card .field{grid-template-columns:58px minmax(0,1fr);margin:6px 0}
.mode-low>b i{background:#2a9d8f}.mode-std>b i{background:#5163ec}.mode-high>b i{background:#e76f51}
.form-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tool-results{display:flex;flex-direction:column;gap:16px;min-width:0}.tool-wide{margin-top:16px}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;min-width:0}
.kpi small{display:block;color:var(--muted);font-size:11px;line-height:1.5}
.kpi b{display:block;font-size:22px;font-weight:700;letter-spacing:-.5px;margin:5px 0 3px;line-height:1.3;overflow-wrap:anywhere}
.kpi span{display:block;color:var(--muted);font-size:11px;line-height:1.6;overflow-wrap:anywhere}
.kpi.main{background:var(--primary-soft);border-color:transparent}.kpi.main b{color:var(--primary)}
.kpi.wide{grid-column:span 3}.kpi.half{grid-column:span 2}
.kpi.spec b{font-size:17px;letter-spacing:-.2px}
.result-panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;min-width:0}
.result-panel>h3{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;font-size:14px;padding:14px 18px;border-bottom:1px solid var(--line)}
.result-panel>h3 small{font-weight:400;color:var(--muted);font-size:11px}
.result-panel .note{padding:12px 18px;font-size:12px;color:var(--muted);line-height:1.75;border-top:1px solid var(--line)}
.result-panel .explain{padding:12px 18px;font-size:12.5px;line-height:1.85}.result-panel .explain p{line-height:1.85}.result-panel .explain p+p{margin-top:6px}
.tools-page .table-scroll{overflow-x:auto}
.tools-page table{width:100%;border-collapse:collapse;white-space:nowrap}
.tools-page th{padding:9px 14px;font-size:11px;font-weight:550;text-align:left;color:var(--muted);background:var(--bg)}
.tools-page td{padding:10px 14px;font-size:12px;border-bottom:1px solid var(--line)}
.tools-page tr:last-child td{border-bottom:0}
.tools-page .num{text-align:right}
.tools-page tr.best td,.tools-page td.best-col,.tools-page th.best-col{background:var(--primary-soft)}
.tools-page tr.strong td{font-weight:650}
.tools-page td small{font-size:10px}
.chart-box{position:relative;height:300px;padding:12px 14px 8px}
.callout{border-left:3px solid var(--primary);background:var(--primary-soft);border-radius:8px;padding:12px 16px;font-size:12.5px;line-height:1.85}
.callout.warn{border-left-color:var(--warn)}.callout b{font-weight:650}
.tool-notes{margin-top:24px}
.tool-notes details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.tool-notes details+details{margin-top:10px}
.tool-notes summary{cursor:pointer;font-weight:600;font-size:13px}
.tool-notes ul{margin:10px 0 2px;padding-left:18px;color:var(--muted);font-size:12px;line-height:1.95}
.tools-switch{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.tools-switch a{display:inline-flex;gap:6px;align-items:center;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px;color:var(--muted);background:var(--surface)}
.tools-switch a svg.icon{width:15px;height:15px}.tools-hero .eyebrow{margin-bottom:12px}
.tools-switch a:hover,.tools-switch a[aria-current=page]{color:var(--primary);border-color:var(--primary)}
.tools-disclaimer{margin-top:18px;font-size:11px;color:var(--muted);line-height:1.8}

/* difficulty and halving */
.network-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.network-panels{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:16px}
.network-panels .result-panel{padding-bottom:6px}
.network-panels dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 16px;margin:0;padding:14px 18px;font-size:12.5px}
.network-panels dt{color:var(--muted)}.network-panels dd{margin:0;text-align:right;font-weight:600}
.progress{height:8px;margin:14px 18px 0;border-radius:99px;background:var(--bg);border:1px solid var(--line);overflow:hidden}.progress i{display:block;height:100%;width:0;background:var(--primary);transition:width .4s}
.countdown{font-size:30px;font-weight:750;letter-spacing:-.5px;padding:14px 18px 0}
.convert-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.convert-grid .tool-form{padding-bottom:8px}
.convert-grid dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:7px 14px;margin:6px 0 10px;font-size:12.5px}
.convert-grid dt{color:var(--muted)}.convert-grid dd{margin:0;text-align:right;font-weight:600}

@media(max-width:1150px){.live-strip{grid-template-columns:repeat(3,minmax(0,1fr))}.network-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.tool-layout{grid-template-columns:1fr}.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}.kpi.wide,.kpi.half{grid-column:span 2}.network-panels,.convert-grid{grid-template-columns:1fr}}
@media(max-width:650px){.tools-hero h1{font-size:30px;letter-spacing:-1px}.live-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.tools-grid{grid-template-columns:1fr}.tool-head h1{font-size:23px}.tool-icon.big{width:46px;height:46px}.kpi b{font-size:19px}.live-strip b,.stat b{font-size:17px}.field{grid-template-columns:92px minmax(0,1fr)}.chart-box{height:250px;padding:8px 6px}.countdown{font-size:24px}
.tool-card{flex-direction:row;align-items:flex-start;gap:14px;padding:16px}.tool-card .card-link{display:none}.tool-card p{margin-top:2px}
.tools-page th,.tools-page td{padding:9px 10px}.tools-page td{font-size:11.5px}.result-panel>h3{padding:12px 14px}.result-panel .note,.result-panel .explain{padding:12px 14px}}
.quick{display:inline-flex;flex-wrap:wrap;gap:6px;margin-left:4px;vertical-align:middle}
.quick button{border:1px solid var(--line);background:var(--surface);color:var(--primary);border-radius:6px;padding:0 8px;font-size:11px;line-height:1.8;cursor:pointer}
.quick button:hover,.quick button:focus-visible{border-color:var(--primary);outline:none}
.tool-results td small{display:block;font-size:10.5px;font-weight:400;color:var(--muted);margin-top:2px}
.tool-notes h4{font-size:13px;font-weight:650;margin:18px 0 2px}
.tool-notes ol{margin:8px 0 2px;padding-left:20px;font-size:12px;line-height:1.95}
.tool-notes ol>li{margin-bottom:4px}.tool-notes ol b{font-weight:650}
.tool-notes ol ul{margin:0 0 4px;padding-left:16px;color:inherit}
.tool-notes .table-scroll{margin:8px 0 4px;border:1px solid var(--line);border-radius:8px}
.tools-page .tool-notes th,.tools-page .tool-notes td{padding:6px 12px;font-size:11.5px}

/* power allocation plan */
.plan-seg{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin:4px 0 6px;clear:both}
.plan-seg label{position:relative;display:block}
.plan-seg input{position:absolute;opacity:0;width:1px;height:1px}
.plan-seg span{display:block;text-align:center;border:1px solid var(--line);border-radius:8px;padding:8px 6px;font-size:12.5px;color:var(--muted);cursor:pointer}
.plan-seg input:checked+span{border-color:var(--primary);background:var(--primary-soft);color:var(--primary);font-weight:650}
.plan-seg input:focus-visible+span{box-shadow:0 0 0 3px var(--primary-soft)}
.plan-seg.plan-seg3{grid-template-columns:repeat(3,minmax(0,1fr))}.plan-seg3 span{padding:8px 3px;font-size:12px}
.plan-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;min-width:0}
.plan-note{display:block;clear:both;color:var(--muted);font-size:11px;line-height:1.6;margin:4px 0 6px}
.plan-row{display:grid;grid-template-columns:44px minmax(0,1fr) minmax(0,1fr) 58px 22px;gap:6px;align-items:center;margin:7px 0;clear:both;font-size:12px}
.plan-row.plan-tf{grid-template-columns:44px minmax(0,.8fr) minmax(0,1.2fr) 22px}
.tools-page .plan-row .input-unit input,.tools-page .plan-grid .input-unit input{padding:7px 8px}
.tools-page .plan-row .input-unit em{padding:0 7px}
.plan-tag{color:var(--muted);font-size:11.5px;white-space:nowrap}
.plan-cap{font-size:11px;font-weight:600;white-space:nowrap;text-align:right}
.plan-x{border:0;background:none;color:var(--muted);font-size:17px;line-height:1;padding:2px 4px;border-radius:6px;cursor:pointer}
.plan-x:hover,.plan-x:focus-visible{color:var(--bad);background:var(--bg);outline:none}
.plan-add{display:block;clear:both;width:100%;border:1px dashed var(--line);background:none;color:var(--primary);border-radius:8px;padding:6px 10px;font-size:12px;margin:6px 0 4px;cursor:pointer}
.plan-add:hover,.plan-add:focus-visible{border-color:var(--primary);outline:none}
.plan-card{clear:both;border:1px solid var(--line);border-radius:10px;padding:8px 10px 6px;margin:8px 0}
.plan-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:12.5px}
.plan-card-head b{font-weight:650}
.plan-card-head .plan-cap{flex:1;text-align:right;font-weight:400;color:var(--muted);white-space:normal}
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 8px;margin-top:6px}
.plan-grid>label{display:flex;flex-direction:column;gap:3px;min-width:0;font-size:11px;color:var(--muted)}
.plan-grid>.plan-wide{grid-column:1/-1}
.tools-page .plan-card select{width:100%;min-width:0;border:1px solid var(--line);border-radius:8px;padding:7px 8px;background:var(--surface);color:var(--text);font-size:12.5px;outline:none}
.tools-page .plan-card select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.plan-card .check-field{margin:6px 0 2px}
.pl-tree{padding:8px 18px 14px;font-size:12.5px}
.pl-line+.pl-line{border-top:1px solid var(--line);margin-top:8px;padding-top:6px}
.pl-tf,.pl-box{margin-left:10px;padding-left:12px;border-left:2px solid var(--line)}
.pl-tf{margin-top:4px}
.pl-row{display:grid;grid-template-columns:minmax(78px,max-content) minmax(0,1fr) 96px minmax(0,max-content);gap:4px 12px;align-items:center;padding:4px 0}
.pl-row b{font-weight:650;white-space:nowrap}
.pl-spec{color:var(--muted);font-size:11.5px}
.pl-load{font-size:11.5px;text-align:right;white-space:nowrap}
.pl-bar{display:block;height:7px;border-radius:99px;background:var(--bg);border:1px solid var(--line);overflow:hidden}
.pl-bar i{display:block;height:100%;background:var(--tool-fg)}
.pl-bar.full i{background:var(--primary)}
.pl-mix{color:var(--muted);font-size:11.5px;line-height:1.6;padding:0 0 4px}
.pl-empty{color:var(--muted);font-size:11.5px;padding:2px 0 4px}
.tools-page td.pl-wrap{white-space:normal;min-width:150px}
.callout ul{margin:6px 0 0;padding-left:18px}.callout li{line-height:1.8}.callout li+li{margin-top:4px}
.tool-notes details>p{margin:8px 0 2px;font-size:12px;color:var(--muted);line-height:1.9}
@media(max-width:650px){.pl-tree{padding:8px 12px 12px}.pl-tf,.pl-box{margin-left:4px;padding-left:9px}
.pl-row{grid-template-columns:minmax(0,max-content) minmax(0,1fr);gap:2px 8px}.pl-row .pl-bar{grid-column:1/-1}.pl-load{grid-column:1/-1;text-align:left;white-space:normal}}