/* 电子透镜工作台。组件自带深色“仪器”配色，放在深色实验室页或浅色题目页里都能看清。 */
.lens-studio {
  --ls-bg: #0d1324;
  --ls-card: #111a2e;
  --ls-card-2: #16213a;
  --ls-line: rgba(160, 185, 230, 0.16);
  --ls-line-2: rgba(160, 185, 230, 0.28);
  --ls-ink: #e9eef9;
  --ls-ink-2: #b4bfd8;
  --ls-ink-3: #8390ae;
  --ls-gold: #ffc94d;
  --num-font: "SF Pro Text", "Inter", "PingFang SC", system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--ls-ink);
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 13.5px;
  min-width: 0;
}
.lens-studio * { box-sizing: border-box; }
.lens-studio button, .lens-studio select, .lens-studio input { font: inherit; color: inherit; }
.lens-studio [hidden] { display: none !important; }

.ls-top { display: flex; align-items: center; justify-content: space-between; gap: 8px 12px; flex-wrap: wrap; }
.ls-markjump { align-items: center; background: var(--ls-card); border: 1px solid var(--ls-line); border-radius: 10px; padding: 3px 4px 3px 10px; }
.ls-markjump b { font-size: 12.5px; color: var(--ls-ink-2); margin-right: 2px; }
.lens-studio .ls-markjump button { min-width: 38px; font-family: "Times New Roman", serif; font-size: 15px; }
.lens-studio .chip-row { display: flex; gap: 5px; flex-wrap: wrap; }
.lens-studio .chip-row button, .lens-studio .btn {
  border: 1px solid var(--ls-line-2); background: #1a2542; color: var(--ls-ink); padding: 6px 11px; border-radius: 8px; cursor: pointer;
  font-weight: 600; font-size: 13px; white-space: nowrap; min-height: 34px;
}
.lens-studio .chip-row button:hover, .lens-studio .btn:hover { background: #22305a; }
.lens-studio .chip-row button.on { border-color: var(--ls-gold); color: var(--ls-gold); box-shadow: inset 0 0 0 1px var(--ls-gold); }
.lens-studio .chip-row button.soft { font-weight: 500; color: var(--ls-ink-2); }
.lens-studio .btn.primary { background: var(--ls-gold); color: #1b1606; border-color: transparent; min-width: 118px; }
.lens-studio .btn.primary:hover { filter: brightness(1.06); background: var(--ls-gold); }
.lens-studio .btn:disabled { opacity: 0.4; cursor: not-allowed; }
.lens-studio .btn.small { padding: 4px 9px; font-size: 12px; min-height: 28px; }
.lens-studio .seg { display: inline-flex; background: #111a2e; border: 1px solid var(--ls-line); border-radius: 10px; padding: 3px; }
.lens-studio .seg button { border: 0; background: transparent; padding: 5px 11px; border-radius: 7px; cursor: pointer; color: var(--ls-ink-2); font-weight: 600; white-space: nowrap; }
.lens-studio .seg button[aria-checked="true"] { background: #22305a; color: var(--ls-ink); box-shadow: inset 0 -2px 0 var(--ls-gold); }

.ls-stage { display: flex; flex-direction: column; gap: 8px; }
.ls-pane {
  position: relative; border-radius: 12px; overflow: hidden; border: 1px solid var(--ls-line);
  background: radial-gradient(1200px 700px at 30% 20%, #16244a 0%, #0b1226 55%, #070b17 100%);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.28);
}
.ls-host { position: absolute; inset: 0; }
.lens-studio .field2d-canvas, .lens-studio .scene3d-canvas { position: absolute; inset: 0; display: block; touch-action: none; outline: none; }
.lens-studio .label-layer { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 2; }
.lens-studio .lbl { position: absolute; left: 0; top: 0; color: #eef3fc; font-size: 12.5px; font-weight: 600; white-space: nowrap; text-shadow: 0 0 3px rgba(0, 0, 0, 0.95), 0 1px 2px rgba(0, 0, 0, 0.95); font-family: var(--num-font); }
.lens-studio .lbl.axis { background: rgba(6, 10, 22, 0.55); padding: 0 4px; border-radius: 4px; }
.lens-studio .lbl.axis-title { font-weight: 700; font-size: 13.5px; color: #fff; background: rgba(6, 10, 22, 0.66); padding: 1px 6px; border-radius: 5px; }
.lens-studio .lbl.note { color: #d3dcef; font-size: 12px; font-weight: 500; background: rgba(8, 12, 24, 0.66); padding: 2px 7px; border-radius: 6px; }
.lens-studio .lbl.sec { color: var(--ls-gold); font-weight: 800; font-size: 14px; }
.lens-studio .probe-tip {
  position: absolute; left: 0; top: 0; z-index: 6; pointer-events: none; opacity: 0; transition: opacity 0.12s;
  background: rgba(8, 12, 24, 0.92); color: #eef2fa; border: 1px solid rgba(255, 255, 255, 0.12); border-radius: 9px; padding: 7px 10px;
  font-size: 12.5px; line-height: 1.55; min-width: 150px; font-family: var(--num-font);
}
.lens-studio .probe-tip small { display: block; color: #9fb0cf; }
.lens-studio .probe-tip b { display: block; font-size: 13px; }
.lens-studio .probe-tip span { display: block; color: #c9d4ea; }
.ls-head {
  display: flex; align-items: center; justify-content: space-between; gap: 6px 10px; flex-wrap: wrap;
  padding: 6px 8px; background: rgba(8, 12, 24, 0.6); border-bottom: 1px solid var(--ls-line);
}
.ls-canvas { position: relative; }
.ls-badge { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1 1 260px; color: #eef2fa; font-size: 12.5px; }
.ls-badge i { width: 9px; height: 9px; border-radius: 50%; background: #a98bff; flex: none; box-shadow: 0 0 0 3px rgba(169, 139, 255, 0.3); }
.ls-badge b { display: block; font-weight: 600; }
.ls-badge small { display: block; color: #b1bdd6; font-size: 11px; line-height: 1.4; }
.ls-grad { display: inline-block; width: 64px; height: 8px; border-radius: 3px; vertical-align: 0; border: 1px solid rgba(255, 255, 255, 0.35); }
.ls-tools { display: flex; gap: 5px; flex-wrap: wrap; justify-content: flex-end; }
.lens-studio .toggle-group { display: flex; gap: 4px; flex-wrap: wrap; }
.lens-studio .toggle-group button {
  border: 1px solid rgba(255, 255, 255, 0.16); background: rgba(10, 15, 30, 0.78); color: #e8edf8; padding: 4px 9px; border-radius: 8px; cursor: pointer; font-size: 12px;
}
.lens-studio .toggle-group button[aria-pressed="false"] { color: #8894b0; text-decoration: line-through; text-decoration-color: rgba(255, 255, 255, 0.25); }
.lens-studio .toggle-group button[aria-pressed="true"] { border-color: rgba(255, 201, 77, 0.5); }
.ls-ttools .seg { background: rgba(10, 15, 30, 0.8); }
.ls-ttools .seg button { font-size: 12px; padding: 4px 9px; }

.ls-transport { display: flex; align-items: center; gap: 8px 10px; flex-wrap: wrap; padding: 8px 10px; background: var(--ls-card); border: 1px solid var(--ls-line); border-radius: 12px; }
.lens-studio .param { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--ls-ink-2); }
.lens-studio select.sel, .lens-studio .field input, .lens-studio .field select {
  padding: 5px 7px; border-radius: 7px; border: 1px solid var(--ls-line-2); background: #0b1122; color: var(--ls-ink); font-family: var(--num-font);
}
.lens-studio input[type="range"] { accent-color: var(--ls-gold); width: 150px; }
.ls-time { font-family: var(--num-font); font-size: 12.5px; color: var(--ls-ink-2); margin-left: auto; }
.ls-hint { background: #2a2412; border: 1px solid rgba(255, 201, 77, 0.45); color: #f7e7bd; border-radius: 10px; padding: 7px 11px; font-size: 12.5px; line-height: 1.55; }
.ls-hint:empty { display: none; }

.ls-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 10px; align-items: start; }
.ls-card { background: var(--ls-card); border: 1px solid var(--ls-line); border-radius: 12px; padding: 10px 12px; min-width: 0; }
.ls-card h4 { margin: 0 0 6px; font-size: 13.5px; }
.ls-card h4 small { font-weight: 400; color: var(--ls-ink-3); font-size: 11.5px; margin-left: 6px; }
.ls-card p { margin: 5px 0; line-height: 1.6; color: var(--ls-ink-2); font-size: 12.5px; }
.lens-studio details.ls-card { margin: 0; padding: 10px 12px; border: 1px solid var(--ls-line); }
.ls-card summary { cursor: pointer; font-weight: 600; font-size: 13.5px; color: var(--ls-ink); }
.ls-card summary small { font-weight: 400; color: var(--ls-ink-3); font-size: 11.5px; margin-left: 6px; }
.ls-card .muted { color: var(--ls-ink-3); }
.ls-card b.ok { color: #6ee7a8; }
.ls-card b.warn, .ls-card .warn { color: #ffbe6b; }
.ls-card b.bad { color: #ff7a8f; }
.ls-plotcard { grid-column: 1 / -1; }
.ls-plot { position: relative; height: 250px; }
.lens-studio .plot-canvas { position: absolute; inset: 0; touch-action: none; }
.ls-status { font-size: 12.5px; }
.lens-studio .kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; font-size: 12.5px; margin: 6px 0 0; }
.lens-studio .kv dt { color: var(--ls-ink-3); white-space: nowrap; }
.lens-studio .kv dd { margin: 0; font-family: var(--num-font); color: var(--ls-ink); }
.lens-studio .kv i { font-family: "Times New Roman", serif; font-weight: 700; font-style: italic; }
.lens-studio .c-v { color: #5cc8ff; }
.lens-studio .c-f { color: #ff9d4d; }
.lens-studio .c-e { color: #f4f7ff; }
.lens-studio .ptable { width: 100%; border-collapse: collapse; font-size: 12.5px; font-family: var(--num-font); }
.lens-studio .ptable th { text-align: left; color: var(--ls-ink-3); font-weight: 600; padding: 4px; border-bottom: 1px solid var(--ls-line); }
.lens-studio .ptable td { padding: 4px; border-bottom: 1px solid var(--ls-line); }
.lens-studio .row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.lens-studio .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 8px 0; }
.lens-studio .field { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--ls-ink-3); }
.lens-studio .field input, .lens-studio .field select { width: 100%; font-size: 13px; }
.ls-form { margin-top: 8px; }

.lens-studio.compact .ls-info { grid-template-columns: 1fr; }
.lens-studio.compact .ls-time { margin-left: 0; width: 100%; }

@media (max-width: 640px) {
  .ls-badge { font-size: 11.5px; flex-basis: 100%; }
  .ls-badge small { display: none; }
  .ls-time { margin-left: 0; width: 100%; }
  .ls-info { grid-template-columns: 1fr; }
  .lens-studio .btn.primary { min-width: 0; }
}