/* =====================================================================
   回测实验室 /labs/backtest.html
   与 tools.css 共用双栏工作台，只补这个页面专属的部分。
   ===================================================================== */

.lab-page .wrap{max-width:1080px}

/* ---------- 结果区（顶部，先看结论） ---------- */
.lab-result{
  background:var(--panel);color:var(--panel-ink);
  border:1px solid var(--panel);border-radius:20px;
  padding:22px 24px 24px;overflow:hidden;
  box-shadow:0 22px 60px rgba(0,0,0,.22);
}
.lab-result .panel-head{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.14em;
  color:var(--panel-muted);text-transform:uppercase;margin-bottom:18px;
}
.lab-result .lab-dots{display:flex;gap:4px}
.lab-result .lab-dots i{width:7px;height:7px;border-radius:50%;background:var(--panel-3);display:block}
.lab-result .lab-dots i:nth-child(1){background:#e0705f}
.lab-result .lab-dots i:nth-child(2){background:#e0c05f}
.lab-result .lab-dots i:nth-child(3){background:#5fbf8f}
.lab-result .res-tag{
  font-size:9px;letter-spacing:.08em;color:var(--panel-muted);
  padding:3px 8px;border:1px solid var(--panel-line);border-radius:5px;
}
.lab-result .live-badge{margin-left:auto;display:inline-flex;align-items:center;gap:5px;color:var(--accent)}
.lab-result .live-badge i{
  width:5px;height:5px;border-radius:50%;background:var(--accent);
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}

/* 顶部：大数字 + 8 项指标 */
.res-top{
  display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1.6fr);
  gap:26px;align-items:start;margin-bottom:20px;
}
.res-hero .result-label{
  font-size:11px;color:var(--panel-muted);margin:0 0 4px;
  font-family:var(--font-mono);letter-spacing:.06em;
}
.res-hero .result-big{
  font-family:var(--font-mono);font-size:clamp(38px,5.4vw,54px);font-weight:600;
  line-height:1;letter-spacing:-.035em;margin:0 0 8px;
  font-variant-numeric:tabular-nums;color:var(--panel-ink);
}
.res-hero .result-big.pos{color:var(--accent)}
.res-hero .result-big.neg{color:#ff8878}
.res-hero .result-sub{font-size:11.5px;color:var(--panel-muted);margin:0 0 14px;line-height:1.6}
.res-hero .result-sub b{color:var(--panel-ink);font-weight:600}
.res-hero .result-sub .up{color:#ff8878}
.res-hero .result-sub .down{color:var(--accent)}

/* 期末资金对比条 */
.res-compare{display:grid;gap:7px;margin-top:2px}
.cmp-row{display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:9px}
.cmp-k{font-size:10px;color:var(--panel-muted);font-family:var(--font-mono)}
.cmp-bar{height:6px;border-radius:4px;background:var(--panel-3);overflow:hidden}
.cmp-bar i{display:block;height:100%;border-radius:4px;background:var(--panel-muted)}
.cmp-row.strat .cmp-bar i{background:var(--accent)}
.cmp-v{
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  color:var(--panel-ink);font-variant-numeric:tabular-nums;
}

.lab-result .stat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--panel-line);border:1px solid var(--panel-line);
  border-radius:12px;overflow:hidden;
}
.lab-result .stat-cell{
  background:var(--panel-2);padding:10px 11px;
  display:flex;flex-direction:column;gap:2px;min-width:0;
}
.lab-result .stat-cell span{
  font-family:var(--font-mono);font-size:8px;letter-spacing:.08em;
  color:var(--panel-muted);text-transform:uppercase;
}
.lab-result .stat-cell b{
  font-family:var(--font-mono);font-size:15px;font-weight:600;
  color:var(--panel-ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
  overflow-wrap:anywhere;
}
.lab-result .stat-cell i{
  font-style:normal;font-family:var(--font-mono);font-size:8.5px;
  color:var(--panel-muted);opacity:.75;font-variant-numeric:tabular-nums;
}

/* 图表区 */
.res-chart{margin:0 0 16px}
.res-chart figcaption{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--panel-muted);margin-bottom:8px;
}
.res-chart figcaption span{
  text-transform:none;letter-spacing:.02em;font-size:9.5px;opacity:.8;
}
.lab-chart{
  position:relative;height:260px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--panel-line);
  overflow:hidden;
}
.dd-chart{
  position:relative;height:132px;border-radius:12px;
  background:var(--panel-2);border:1px solid var(--panel-line);
  overflow:hidden;
}
.lab-chart canvas,.dd-chart canvas{width:100%;height:100%;display:block}

/* 下方两栏：交易明细 + 成本风控 */
.res-cols{
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:16px;align-items:start;
}
.res-block .res-h{
  margin:0 0 4px;font-family:var(--font-mono);font-size:9px;
  letter-spacing:.14em;text-transform:uppercase;
  color:var(--panel-muted);font-weight:500;
}
.res-hint{margin:0 0 10px;font-size:10.5px;line-height:1.6;color:var(--panel-muted)}
.trade-wrap{
  border:1px solid var(--panel-line);border-radius:10px;overflow:hidden;
  max-height:296px;overflow-y:auto;
}
.trade-table{width:100%;border-collapse:collapse;font-size:11px}
.trade-table th,.trade-table td{
  padding:7px 10px;text-align:right;white-space:nowrap;
  border-bottom:1px solid var(--panel-line);
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
}
.trade-table th:first-child,.trade-table td:first-child,
.trade-table th:nth-child(2),.trade-table td:nth-child(2){text-align:left}
.trade-table th{
  background:var(--panel);color:var(--panel-muted);
  font-size:8px;letter-spacing:.06em;font-weight:500;text-transform:uppercase;
  position:sticky;top:0;
}
.trade-table td{color:var(--panel-ink)}
.trade-table tr:last-child td{border-bottom:0}
.trade-table .side-buy{color:var(--accent)}
.trade-table .side-sell{color:#ff8878}

/* 成本与风控 */
.lab-cost{display:grid;gap:7px;margin-bottom:14px}
.lc-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  font-size:11px;color:var(--panel-muted);
}
.lc-row b{
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;
  color:var(--panel-ink);font-variant-numeric:tabular-nums;text-align:right;
}
.lc-row.wide{display:block}
.lc-row.wide b{
  display:block;margin-top:3px;font-weight:400;font-size:10px;
  line-height:1.6;color:var(--panel-muted);text-align:left;white-space:normal;
}

.lab-verdict{display:grid;gap:8px}
.lab-verdict p{
  margin:0;font-size:11.5px;line-height:1.7;color:var(--panel-muted);
  padding-left:11px;border-left:2px solid var(--panel-line);
}
.lab-verdict strong{color:var(--panel-ink);font-weight:600}

/* ---------- 参数区（下方） ---------- */
.lab-ctrl{
  margin-top:18px;
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:22px 24px 24px;box-shadow:var(--shadow);
}
.ctrl-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding-bottom:14px;margin-bottom:18px;
  border-bottom:1px solid var(--line);
}
.lab-ctrl h2{
  display:flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:9px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;font-weight:500;margin:0;
}
.lab-ctrl h2::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 16%,transparent);
}
.ctrl-actions{display:flex;gap:8px;flex-wrap:wrap}

/* 卡片网格 */
.ctrl-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;align-items:stretch;   /* 同一行卡片等高，边缘才齐 */
}
.ctrl-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:16px;
  padding:16px 17px 17px;min-width:0;
}
.ctrl-card.span2{grid-column:span 2}
.ctrl-card.span3{grid-column:span 3}

.group-title{
  display:flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:8.5px;letter-spacing:.13em;
  text-transform:uppercase;color:var(--faint);margin:0 0 13px;font-weight:500;
}
.group-title::after{
  content:"";flex:1;height:1px;background:var(--line);
}

/* 卡片内的普通字段（下拉、成本倍数） */
.ctrl-card .field{margin-bottom:14px}
.ctrl-card .field:last-child{margin-bottom:0}
.ctrl-card .field-top{margin-bottom:7px;align-items:center}
.ctrl-card .field label{font-size:12.5px;font-weight:600;color:var(--ink-2)}
.ctrl-card select,
.ctrl-card .field input[type="number"]{
  width:100%;height:38px;padding:0 11px;
  background:var(--card);border:1px solid var(--line-2);border-radius:10px;
  color:var(--ink);font-size:13px;outline:none;
  transition:border-color .15s ease,box-shadow .15s ease;
}
.ctrl-card .field input[type="number"]{
  font-family:var(--font-mono);font-size:15px;font-variant-numeric:tabular-nums;
}
.ctrl-card select{cursor:pointer}
.ctrl-card select:focus,
.ctrl-card .field input[type="number"]:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 14%,transparent);
}
.ctrl-card .hint{
  font-size:10.5px;line-height:1.65;color:var(--faint);margin:7px 0 0;
}

/* ---------- 参数控件（slider） ---------- */
.field-pair{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(128px,1fr));
  gap:16px 18px;
}
/* 风控固定 2×2，避免 auto-fit 在宽卡片里排成一行四个 */
.field-pair.risk-pair{grid-template-columns:repeat(2,minmax(0,1fr))}
/* 信号参数最多 3 个：跨两列后正好排成一行，卡片不会被拉高 */
.field-pair.sig-pair{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
/* 成本与频率铺满整行时，两个字段并排 */
.field-pair.cost-pair{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px 24px}
.pfield{min-width:0}
.pfield-top{
  display:flex;align-items:center;justify-content:space-between;
  gap:8px;margin-bottom:8px;
}
.pfield-top label{
  font-size:12px;font-weight:600;color:var(--ink-2);letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
/* 数值输入：无框，只在聚焦时出现下划线，视觉更轻 */
.pfield-val{display:inline-flex;align-items:baseline;gap:2px;flex:0 0 auto}
.pfield-val input[type="number"]{
  width:52px;padding:2px 4px;text-align:right;
  background:transparent;border:0;border-bottom:1px solid transparent;border-radius:0;
  font-family:var(--font-mono);font-size:13px;font-weight:600;
  color:var(--ink);font-variant-numeric:tabular-nums;outline:none;
  transition:border-color .14s ease,background .14s ease;
  -moz-appearance:textfield;
}
.pfield-val input[type="number"]::-webkit-outer-spin-button,
.pfield-val input[type="number"]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.pfield-val input[type="number"]:hover{background:var(--card)}
.pfield-val input[type="number"]:focus{
  background:var(--card);border-bottom-color:var(--brand);
}
.pfield-unit{
  font-family:var(--font-mono);font-size:10px;color:var(--faint);
  min-width:10px;
}

/* 滑杆：轨道左侧按当前值填充 */
.pslider{
  -webkit-appearance:none;appearance:none;
  width:100%;height:4px;border-radius:3px;outline:none;
  background:linear-gradient(to right,
    var(--brand) 0%, var(--brand) var(--p,50%),
    var(--line-2) var(--p,50%), var(--line-2) 100%);
  cursor:pointer;margin:0;
}
.pslider::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:15px;height:15px;border-radius:50%;
  background:var(--card);border:2px solid var(--brand);
  box-shadow:0 1px 3px rgba(13,21,18,.18);
  cursor:grab;transition:transform .12s ease;
}
.pslider::-webkit-slider-thumb:hover{transform:scale(1.12)}
.pslider:active::-webkit-slider-thumb{cursor:grabbing;transform:scale(1.05)}
.pslider::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;
  background:var(--card);border:2px solid var(--brand);
  box-shadow:0 1px 3px rgba(13,21,18,.18);cursor:grab;
}
.pslider:focus-visible{
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 18%,transparent);
}

.ctrl-card .field input[type="range"]{
  -webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:3px;
  outline:none;margin:10px 0 0;cursor:pointer;
  background:linear-gradient(to right,
    var(--brand) 0%, var(--brand) var(--p,20%),
    var(--line-2) var(--p,20%), var(--line-2) 100%);
}
.ctrl-card .field input[type="range"]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:15px;height:15px;border-radius:50%;
  background:var(--card);border:2px solid var(--brand);
  box-shadow:0 1px 3px rgba(13,21,18,.18);cursor:grab;
}
.ctrl-card .field input[type="range"]::-moz-range-thumb{
  width:13px;height:13px;border-radius:50%;background:var(--card);
  border:2px solid var(--brand);box-shadow:0 1px 3px rgba(13,21,18,.18);cursor:grab;
}
.pfield-hint{
  margin:8px 0 0;font-size:10.5px;line-height:1.7;
  color:var(--faint);
}

.pselect{
  width:100%;height:36px;padding:0 10px;
  background:var(--card);border:1px solid var(--line-2);border-radius:9px;
  color:var(--ink);font-size:12.5px;outline:none;cursor:pointer;
}
.pselect:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 14%,transparent);
}

/* ---------- 策略运作逻辑 ---------- */
.mech{
  margin-top:14px;padding-top:13px;border-top:1px dashed var(--line-2);
  display:grid;gap:8px;
}
.mech-row{display:grid;grid-template-columns:auto 1fr;gap:9px;align-items:baseline}
.mech-k{
  font-family:var(--font-mono);font-size:8px;letter-spacing:.08em;
  padding:2px 6px;border-radius:4px;font-weight:600;
  white-space:nowrap;
}
.mech-k.buy{background:var(--brand);color:#f4fbf8}
.mech-k.sell{background:#9d3529;color:#fdf2f0}
.mech-k.note{background:var(--line-2);color:var(--ink-2)}
.mech-row p{margin:0;font-size:11px;line-height:1.65;color:var(--muted)}

/* 下半区板块 */
.lab-sect{margin-top:44px}
.lab-lead{max-width:720px;margin:0 0 18px;font-size:13.5px;line-height:1.85;color:var(--muted)}

.lab-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink);color:var(--paper);
  border:1px solid var(--ink);border-radius:10px;
  padding:11px 20px;font-size:13.5px;font-weight:600;
  transition:all .16s ease;
}
.lab-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.lab-btn:disabled{opacity:.6;cursor:wait;transform:none}

.lab-sweep{margin-top:20px}
.sweep-summary{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px;
}
.sw-card{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:11px 15px;min-width:104px;
}
.sw-card span{
  display:block;font-family:var(--font-mono);font-size:8.5px;letter-spacing:.08em;
  color:var(--muted);text-transform:uppercase;margin-bottom:3px;
}
.sw-card b{
  font-family:var(--font-mono);font-size:16px;font-weight:600;
  color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.sw-card.best{border-color:var(--brand)}
.sw-card.best b{color:var(--brand)}
.sw-card.worst b{color:var(--up)}
.sw-note{
  flex:100%;margin:2px 0 0;font-size:12.5px;line-height:1.8;color:var(--muted);
}
.sw-note b{color:var(--ink);font-weight:600}

.sweep-table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  overflow-x:auto;
}
.sweep-table{width:100%;border-collapse:collapse;font-size:12px}
.sweep-table th,.sweep-table td{
  padding:9px 12px;text-align:right;white-space:nowrap;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
}
.sweep-table th:first-child,.sweep-table td:first-child,
.sweep-table th:nth-child(2),.sweep-table td:nth-child(2){text-align:left}
.sweep-table th{
  background:var(--panel);color:var(--panel-ink);
  font-size:9px;letter-spacing:.06em;font-weight:500;text-transform:uppercase;
  border-bottom:0;position:sticky;top:0;
}
.sweep-table td{color:var(--ink-2)}
.sweep-table tr:last-child td{border-bottom:0}
.sweep-table tr.is-best{background:color-mix(in srgb,var(--brand) 7%,var(--card))}
.sweep-table tr.is-best td{color:var(--ink);font-weight:600}
.sweep-table td.neg{color:var(--up)}
.sweep-table td.oos-best{color:var(--up);font-weight:700}

/* 教学结论卡 */
.lab-lessons{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.lesson{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;
}
.lesson .n{
  display:block;font-family:var(--font-mono);font-size:8.5px;letter-spacing:.14em;
  color:var(--faint);margin-bottom:8px;
}
.lesson h3{margin:0 0 6px;font-size:15.5px;letter-spacing:-.015em}
.lesson p{margin:0;font-size:12px;line-height:1.75;color:var(--muted)}

/* 断点按宽度从大到小写，保证覆盖顺序可预测 */
@media(max-width:1060px){
  .res-cols{grid-template-columns:1fr}
}
@media(max-width:900px){
  .lab-lessons{grid-template-columns:1fr}
  .res-top{grid-template-columns:1fr;gap:18px}
  .ctrl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:680px){
  .ctrl-grid{grid-template-columns:1fr}
  .lab-result{padding:17px 15px 19px}
  .lab-result .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .res-hero .result-big{font-size:36px}
  .lab-chart{height:200px}
  .dd-chart{height:110px}
  .lab-ctrl{padding:17px 15px}
  .res-chart figcaption{flex-wrap:wrap;gap:4px}
}

/* =====================================================================
   真实数据层（2026-10 升级）
   ===================================================================== */

/* =====================================================================
   调参框架（2026-10）
   ===================================================================== */


/* 操作按钮组 */
.lab-btn.sm{padding:8px 14px;font-size:12px}
.lab-btn.ghost{
  background:var(--paper-2);color:var(--ink-2);border-color:var(--line-2);
}
.lab-btn.ghost:hover{border-color:var(--ink);color:var(--ink)}

/* 敏感性扫描控制条 */
.sens-controls{
  display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:16px;
}
.sens-pick{display:flex;flex-direction:column;gap:6px}
.sens-pick span{
  font-family:var(--font-mono);font-size:8.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--faint);
}
.sens-pick select{
  min-width:180px;height:42px;padding:0 12px;
  background:var(--paper);border:1.5px solid var(--line);border-radius:10px;
  color:var(--ink);font-size:13.5px;outline:none;cursor:pointer;
}
.sens-pick select:focus{border-color:var(--ink)}

.sens-chart{
  height:200px;margin-bottom:10px;border-radius:12px;
  background:var(--paper-2);border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.sens-chart canvas{width:100%;height:100%;display:block}

@media(max-width:560px){
  .ctrl-actions{flex-direction:column}
  .lab-btn.sm{width:100%;justify-content:center}
  .sens-pick select{min-width:0;width:100%}
  .sens-controls{flex-direction:column;align-items:stretch}
  .sens-chart{height:170px}
}

/* 工具页里的实验室入口卡（跨页面复用，放在 labs.css 里更合适） */
.tool-item.lab-entry{
  position:relative;
  background:var(--panel);color:var(--panel-ink);border-color:var(--panel);
}
.tool-item.lab-entry::before{opacity:.9}
.tool-item.lab-entry h2{color:var(--panel-ink)}
.tool-item.lab-entry p{color:var(--panel-muted)}
.tool-item.lab-entry .tool-item-no,
.tool-item.lab-entry .tool-item-tag{color:var(--panel-muted)}
.tool-item.lab-entry .tool-item-viz{color:var(--accent)}
.tool-item.lab-entry .tool-item-go{color:var(--accent)}
.tool-item.lab-entry:hover{border-color:var(--accent)}
.sw-legend{color:var(--brand);font-weight:600}

/* 二维参数网格热力图 */
.grid-controls{flex-wrap:wrap}
.grid2d-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:10px;
}
.grid2d-wrap canvas{display:block;width:100%;height:340px}
@media(max-width:700px){
  .grid2d-wrap canvas{height:260px}
}

/* 网格计算进度 */
.grid-progress{flex:100%;margin:0 0 4px}
.gp-bar{
  height:4px;border-radius:3px;background:var(--line);overflow:hidden;
}
.gp-bar span{
  display:block;height:100%;width:0;border-radius:3px;
  background:var(--brand);transition:width .12s linear;
}
.gp-text{
  margin:8px 0 0;font-family:var(--font-mono);font-size:10.5px;
  letter-spacing:.02em;color:var(--muted);
}

/* 分组标题旁的补充说明 */
.gt-note{
  font-family:var(--font-mono);font-size:9px;letter-spacing:.02em;
  text-transform:none;color:var(--muted);font-weight:400;
}

/* 参数组合冲突提示 */
.param-warn{
  margin:12px 0 0;padding:8px 11px;
  font-size:10.5px;line-height:1.65;
  color:#8a4a15;background:color-mix(in srgb,#d98a2b 12%,var(--card));
  border:1px solid color-mix(in srgb,#d98a2b 30%,var(--line));
  border-radius:8px;
}
.param-warn[hidden]{display:none}

/* 实验室：快速上手与局限说明 */
.lab-brief{
  margin:18px 0 0;padding:18px 20px;border:1px solid var(--line);
  border-radius:18px;background:var(--card);color:var(--ink);
}
.lb-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.lb-head b{font-size:15px;letter-spacing:-.01em}
.lb-head span{font-size:12px;color:var(--muted);font-family:var(--font-mono)}
.lb-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;list-style:none;margin:0;padding:0;counter-reset:lb}
.lb-steps li{position:relative;padding:10px 10px 10px 34px;border:1px solid var(--line);border-radius:12px;background:var(--soft,rgba(14,122,107,.04));font-size:12px;line-height:1.55}
.lb-steps li::before{counter-increment:lb;content:counter(lb,decimal-leading-zero);position:absolute;left:10px;top:10px;font-family:var(--font-mono);font-size:10px;color:var(--brand)}
.lb-steps li b{display:block;font-size:12.5px;margin-bottom:2px}
.lb-steps li span{color:var(--muted)}
.lb-note{margin:12px 0 0;font-size:12px;line-height:1.7;color:var(--muted);border-top:1px dashed var(--line);padding-top:11px}
.lb-note b{color:var(--ink)}
.lab-limits{margin:18px 0 0;padding:18px 20px;border:1px solid var(--line);border-radius:18px;background:var(--soft,rgba(14,122,107,.04))}
.lab-limits h2{margin:0 0 10px;font-size:16px}
.lab-limits ul{margin:0;padding-left:18px;display:grid;gap:6px;font-size:12.5px;line-height:1.65;color:var(--muted)}
@media (max-width:820px){.lb-steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.lb-steps{grid-template-columns:1fr}}