/* Preserved stylesheet: assets/css/style.css */
/* ============================================================
   求知工具箱设计基座
   操作优先 / 单一视觉中心 / 统一比例 / 明暗双主题
   ============================================================ */
:root {
  --hair: rgba(23, 25, 29, .1);
  --bg: #f7f8fa;
  --bg-secondary: #f0f2f5;
  --card: #fcfcfd;
  --text: #17191d;
  --text-secondary: #555b66;
  --text-tertiary: #68707c;
  --accent: #006dcc;
  --accent-hover: #005fb8;
  --accent-soft: rgba(8, 117, 225, .09);
  --border: rgba(23, 25, 29, .18);
  --border-light: rgba(23, 25, 29, .1);
  --shadow-sm: 0 1px 2px rgba(18, 22, 28, 0.04);
  --shadow-md: 0 10px 28px rgba(18, 22, 28, 0.09);
  --shadow-lg: 0 24px 64px rgba(10, 13, 18, 0.18);
  --radius: 14px;
  --radius-sm: 10px;
  --content-width: 67.5rem;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-press: cubic-bezier(.2, .8, .2, 1);
  --motion-fast: 120ms;
  --motion-feedback: 160ms;
  --motion-material: 280ms;
  --font: var(--qz-font-sans);
  --mono: "SF Mono", ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace;
}
html.dark {
  --hair: rgba(241, 243, 246, .11);
  --bg: #111318;
  --bg-secondary: #20242c;
  --card: #171a20;
  --text: #f1f3f6;
  --text-secondary: #b8bec8;
  --text-tertiary: #929aa7;
  --accent: #58a8f7;
  --accent-hover: #78b9f9;
  --accent-soft: rgba(88, 168, 247, .12);
  --border: rgba(241, 243, 246, .2);
  --border-light: rgba(241, 243, 246, .11);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 12px 34px rgba(0, 0, 0, 0.32);
  --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.48);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }
.noscript-note{margin:0;padding:12px 16px;text-align:center;background:#FFF4CE;color:#6B4F00;font-size:var(--qz-font-size-14)}
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
::selection { background: var(--accent); color: #fff; }
.skip-link{position:fixed;left:12px;top:8px;z-index:999;transform:translateY(-140%);padding:10px 14px;border-radius:10px;background:var(--text);color:var(--bg);font-weight:600;text-decoration:none}
.skip-link:focus{transform:none}

/* ---------- 首屏搜索 ---------- */
.hero {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 80px 24px 48px;
  text-align: center;
}
.hero-title {
  font-size: clamp(34px, 4vw, 46px);
  font-weight:600;
  line-height: 1.05;
  letter-spacing: -.04em;
  white-space: nowrap;
  margin-bottom: 14px;
  animation: heroLift .48s var(--ease) both;
}
.hero-sub {
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
  line-height: 1.5;
  animation: heroLift .48s .06s var(--ease) both;
}
.hero-sub b{color:var(--text);font-variant-numeric:tabular-nums}
.hero-search{display:flex;align-items:center;max-width:680px;height:56px;margin:28px auto 0;padding:0 14px 0 18px;border:1px solid var(--border);border-radius:14px;background:var(--card);box-shadow:0 8px 28px rgba(18,22,28,.06);color:var(--text-tertiary);outline:0;animation:heroLift .52s .12s var(--ease) both;transition:border-color var(--motion-feedback) var(--ease),box-shadow var(--motion-feedback) var(--ease),background-color var(--motion-feedback) var(--ease)}
.hero-search:focus-within{border-color:color-mix(in srgb,var(--accent) 42%,var(--border));box-shadow:0 12px 34px rgba(18,22,28,.095),inset 0 1px 0 color-mix(in srgb,var(--card) 72%,white)}
.hero-search svg{width:21px;height:21px;flex:0 0 auto}
.hero-search input{min-width:0;flex:1;height:100%;padding:0 12px;border:0;outline:0;background:transparent;color:var(--text);font:inherit;font-size:var(--qz-font-size-16)}
.hero-search input:focus-visible{outline:0}
.hero-search input::placeholder{color:var(--text-tertiary)}
.hero-search kbd{min-width:42px;padding:4px 7px;border:1px solid var(--border-light);border-bottom-color:var(--border);border-radius:10px;background:var(--bg-secondary);color:var(--text-tertiary);font:500 11px var(--font)}
@keyframes heroLift {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 工具网格 ---------- */
.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 24px 72px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.tool-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: none;
  border: 1px solid var(--border-light);
  transition: border-color var(--motion-feedback) var(--ease), box-shadow var(--motion-feedback) var(--ease);
}
.tool-card:nth-child(1) { animation-delay: .05s }
.tool-card:nth-child(2) { animation-delay: .1s }
.tool-card:nth-child(3) { animation-delay: .15s }
.tool-card:nth-child(4) { animation-delay: .2s }
.tool-card:nth-child(5) { animation-delay: .25s }
.tool-card:nth-child(6) { animation-delay: .3s }
.tool-card:nth-child(7) { animation-delay: .35s }
.tool-card:nth-child(8) { animation-delay: .4s }
.tool-card:nth-child(9) { animation-delay: .45s }
.tool-card:nth-child(10) { animation-delay: .5s }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}
.tool-card:hover { border-color: var(--border); }
.tool-card.wide { grid-column: 1 / -1; }
.tool-head { margin-bottom: 18px; }
.tool-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--tint, var(--accent));
  color: #fff;
  font-size:var(--qz-font-size-16);
  font-weight: 700;
  font-family: var(--mono);
  margin-bottom: 14px;
  transition: transform var(--motion-feedback) var(--ease), box-shadow var(--motion-feedback) var(--ease);
}
.tool-name {
  font-size:var(--qz-font-size-20);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.tool-desc {
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
}

/* ---------- 输入输出 ---------- */
.tool-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size:var(--qz-font-size-14);
  font-family: var(--mono);
  line-height: 1.5;
  resize: vertical;
  outline: none;
  transition: border-color var(--motion-feedback) var(--ease), box-shadow var(--motion-feedback) var(--ease), background-color var(--motion-feedback) var(--ease);
}
.tint-orange { --tint: #FF9F0A; }
.tint-indigo { --tint: #5E5CE6; }
.tint-purple { --tint: #BF5AF2; }
.tint-cyan { --tint: #64D2FF; }
.tint-green { --tint: #30D158; }
.tint-blue { --tint: #0A84FF; }
.tint-pink { --tint: #FF375F; }
.tint-rose { --tint: #FF6482; }
.tint-azure { --tint: #0071E3; }
.tint-emerald { --tint: #34C759; }
.tint-red { --tint: #FF453A; }
.tint-yellow { --tint: #FFCC00; }
.tint-brown { --tint: #AC8E68; }
.tool-input:focus {
  border-color: color-mix(in srgb,var(--accent) 52%,var(--border));
  box-shadow: none;
}
.field-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 4px;
}
.tool-output {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-family: var(--mono);
  font-size:var(--qz-font-size-14);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 20px;
  max-height: 300px;
  overflow: auto;
  color: var(--text);
}
.tool-output:empty { display: none; }
.tool-output.error { color: #FF3B30; }
.mono { font-family: var(--mono); }

/* ---------- 按钮 ---------- */
.tool-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.2;
  padding: 8px 18px;
  border: none;
  border-radius: 10px;
  background: var(--bg-secondary);
  color: var(--text);
  font-size:var(--qz-font-size-14);
  font-weight:400;
  font-family: inherit;
  cursor: pointer;
  transition: transform var(--motion-fast) var(--ease-press), background-color var(--motion-feedback) var(--ease), color var(--motion-feedback) var(--ease), box-shadow var(--motion-feedback) var(--ease);
}
.btn:hover { background: var(--border); }
.btn:active { transform: scale(0.97); }
.btn.primary {
  background: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost {
  background: transparent;
  color: var(--accent);
}
.btn.ghost:hover { background: var(--accent-soft); }

/* ---------- 密码生成 ---------- */
.slider-label {
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.slider-label b { color: var(--accent); font-family: var(--mono); }
input[type="range"] {
  width: 100%;
  height: 44px;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  outline: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 10px;
  background: var(--border);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -9px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 5px rgba(0,0,0,0.18), 0 0 0 0.5px rgba(0,0,0,0.06);
  cursor: pointer;
}
input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 10px;
  background: var(--border);
}
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 5px rgba(0,0,0,0.18), 0 0 0 .5px rgba(0,0,0,0.06);
  cursor: pointer;
}
.chip-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.2;
  gap: 6px;
  padding: 6px 14px;
  border-radius:999px;
  background: var(--bg-secondary);
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  user-select: none;
}
.chip:has(input:checked) {
  background: var(--accent);
  color: #fff;
}
.chip.on { background: var(--accent); color: #fff; }
.chip input { accent-color: var(--accent); }

/* ---------- Diff ---------- */
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.diff-out .diff-add { background: rgba(52, 199, 89, 0.15); color: #1F7A38; display: block; }
.diff-out .diff-del { background: rgba(255, 59, 48, 0.12); color: #C2170C; display: block; text-decoration: line-through; }
html.dark .diff-out .diff-add { color: #5BE584; }
html.dark .diff-out .diff-del { color: #FF8A80; }

/* ---------- Markdown 预览 ---------- */
.md-preview {
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  font-size:var(--qz-font-size-14);
  line-height: 1.7;
  overflow: auto;
  max-height: 400px;
}
.md-preview h1, .md-preview h2, .md-preview h3 { margin: 0.8em 0 0.4em; line-height: 1.3; }
.md-preview h1 { font-size: 1.5em; }
.md-preview h2 { font-size: 1.3em; }
.md-preview p { margin: 0.5em 0; }
.md-preview code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--accent-soft);
  padding: 2px 6px;
  border-radius: 5px;
}
.md-preview pre {
  background: var(--bg);
  padding: 12px;
  border-radius: 10px;
  overflow: auto;
  margin: 0.6em 0;
}
.md-preview pre code { background: none; padding: 0; }
.md-preview ul, .md-preview ol { padding-left: 1.5em; margin: 0.5em 0; }
.md-preview blockquote {
  border-left: 1px solid var(--accent);
  padding-left: 14px;
  color: var(--text-secondary);
  margin: 0.6em 0;
}
.md-preview a { color: var(--accent); }
.md-preview strong { font-weight: 600; }

/* ---------- 二维码 ---------- */
.qr-result {
  margin-top: 14px;
  display: flex;
  justify-content: center;
}
.qr-result canvas, .qr-result img {
  border-radius: var(--radius-sm);
  background: #fff;
  padding: 12px;
  box-shadow: var(--shadow-sm);
}

/* ---------- 正则 ---------- */
.regex-out mark {
  background: rgba(255, 214, 10, 0.5);
  color: inherit;
  border-radius: 10px;
  padding: 0 1px;
}
html.dark .regex-out mark { background: rgba(255, 214, 10, 0.35); }
.regex-groups {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 10px 22px;
  background: var(--text);
  color: var(--bg);
  border-radius:999px;
  font-size:var(--qz-font-size-14);
  font-weight:400;
  opacity: 0;
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
  pointer-events: none;
  z-index: 200;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------- 页脚 ---------- */
.footer {
  text-align: center;
  padding: 40px 22px 56px;
  color: var(--text-tertiary);
  font-size:var(--qz-font-size-14);
}
.actions-center { justify-content: center; }
.fill-row { flex: 1; }
.fixed-row { flex: 0 0 auto; }
.select-mode { width: 110px; flex-shrink: 0; }
.select-wide { width: 100%; height: 40px; padding: 0 8px; }
.select-compact { width: 70px; }
.input-narrow { max-width: 120px; }
.space-top { margin-top: 10px; }
.space-top-lg { margin-top: 14px; }
.clipboard-buffer { position: fixed; opacity: 0; pointer-events: none; }
.inline-error { color: #FF3B30; }
.result-image { max-width: 100%; border-radius: 14px; }
.favicon-image { width: 64px; height: 64px; border-radius: 14px; }
.result-canvas { display: block; max-width: 100%; margin-top: 14px; }
body.modal-open { overflow: hidden; }
.footer-sub { margin-top: 6px; font-size:var(--qz-font-size-14); opacity: 0.8; }
.footer a{color:inherit;text-underline-offset:3px}
.footer a:hover{color:var(--text-secondary)}

/* ---------- 隐藏的工具（搜索过滤）---------- */
.tool-card.hidden { display: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .container { grid-template-columns: 1fr; }
  .diff-grid { grid-template-columns: 1fr; }
  .hero { padding: 44px 22px 40px; }
  .hero-title{white-space:normal}
  .tool-card { padding: 22px; }
}
/* ---------- 字数统计格子 ---------- */
.stat-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.stat-cell {
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 12px 8px;
  text-align: center;
}
.stat-cell b {
  display: block;
  font-size:var(--qz-font-size-20);
  font-weight: 700;
  font-family: var(--mono);
  color: var(--accent);
}
.stat-cell span {
  font-size:var(--qz-font-size-14);
  color: var(--text-tertiary);
}

/* ---------- 密码强度条 ---------- */
.strength-bar {
  margin-top: 12px;
  height: 6px;
  border-radius: 10px;
  background: var(--bg-secondary);
  overflow: hidden;
}
.strength-bar i {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 10px;
  transition: background 0.2s var(--ease);
}
.strength-bar i.s1 { width: 25%; background: #FF3B30; }
.strength-bar i.s2 { width: 50%; background: #FF9500; }
.strength-bar i.s3 { width: 75%; background: #FFCC00; }
.strength-bar i.s4 { width: 100%; background: #34C759; }

/* ---------- 表单标签 ---------- */
.field-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size:var(--qz-font-size-14);
  color: var(--text-secondary);
  width: 100%;
}
.field-row:has(.field-label) { flex-direction: row; gap: 12px; }
.field-row:has(.field-label) .field-label { flex: 1; }
@media (max-width: 720px) {
  .field-row:has(.field-label) { flex-direction: column; }
}

/* ---------- 番茄钟 ---------- */
.pomo-display {
  text-align: center;
  font-size: 56px;
  font-weight: 700;
  font-family: var(--mono);
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  transition: color 0.3s;
}
.pomo-display.running { color: var(--accent); }
.pomo-display.break { color: #34C759; }
.pomo-phase {
  text-align: center;
  font-size:var(--qz-font-size-14);
  color: var(--text-tertiary);
  margin: 6px 0 18px;
  letter-spacing: 0.15em;
}

/* ---------- 习惯打卡热力图 ---------- */
.habit-heatmap {
  display: grid;
  grid-template-rows: repeat(7, 1fr);
  grid-auto-flow: column;
  gap: 3px;
  margin: 18px 0 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}
.habit-cell {
  width: 13px;
  height: 13px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  appearance: none;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: transform 0.15s, opacity 0.2s;
}
.habit-cell:hover { transform: scale(1.25); }
.habit-cell.today { outline: 2px solid var(--accent); outline-offset: 1px; }
.habit-cell[data-lv="1"] { background: rgba(48,209,88,.3); }
.habit-cell[data-lv="2"] { background: rgba(48,209,88,.5); }
.habit-cell[data-lv="3"] { background: rgba(48,209,88,.75); }
.habit-cell[data-lv="4"] { background: #30D158; }
html.dark .habit-cell[data-lv="1"] { background: rgba(48,209,88,.25); }
html.dark .habit-cell[data-lv="2"] { background: rgba(48,209,88,.45); }
.habit-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size:var(--qz-font-size-14);
  color: var(--text-tertiary);
  justify-content: flex-end;
}
.habit-legend .hl { width: 11px; height: 11px; border-radius: 10px; display: inline-block; }
.hl-0 { background: var(--bg-secondary); }
.hl-1 { background: rgba(48,209,88,.3); }
.hl-2 { background: rgba(48,209,88,.5); }
.hl-3 { background: rgba(48,209,88,.75); }
.hl-4 { background: #30D158; }

/* ---------- BMI 刻度 ---------- */
.bmi-scale {
  position: relative;
  height: 8px;
  border-radius: 4px;
  margin-top: 16px;
  background: linear-gradient(90deg, #64D2FF 0%, #64D2FF 18%, #34C759 18%, #34C759 42%, #FFCC00 42%, #FFCC00 50%, #FF9500 50%, #FF9500 58%, #FF3B30 58%, #FF3B30 100%);
}
.bmi-scale .bmi-marker {
  position: absolute;
  inset: -7px 0 auto;
  width: 100%;
  height: 22px;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  opacity: 1;
  pointer-events: none;
}
.bmi-scale .bmi-marker::-webkit-slider-runnable-track { height: 8px; background: transparent; }
.bmi-scale .bmi-marker::-webkit-slider-thumb {
  width: 6px;
  height: 20px;
  margin-top: -6px;
  border: 2px solid var(--bg);
  border-radius: 10px;
  background: var(--text);
  -webkit-appearance: none;
}
.bmi-scale .bmi-marker::-moz-range-track { height: 8px; background: transparent; }
.bmi-scale .bmi-marker::-moz-range-thumb {
  width: 4px;
  height: 18px;
  border: 2px solid var(--bg);
  border-radius: 10px;
  background: var(--text);
}

/* ---------- 喝水进度 ---------- */
.water-progress {
  margin-top: 16px;
  height: 36px;
  border-radius: 18px;
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.water-progress progress {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
}
.water-progress progress::-webkit-progress-bar { background: transparent; }
.water-progress progress::-webkit-progress-value {
  border-radius: 18px;
  background: linear-gradient(90deg, #64D2FF, #0A84FF);
}
.water-progress progress::-moz-progress-bar {
  border-radius: 18px;
  background: linear-gradient(90deg, #64D2FF, #0A84FF);
}
.water-progress span {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size:var(--qz-font-size-14);
  font-weight: 600;
  color: var(--text);
  mix-blend-mode: normal;
}

/* ---------- 抽签结果 ---------- */
.draw-result {
  margin-top: 16px;
  min-height: 0;
  text-align: center;
  font-size:var(--qz-font-size-32);
  font-weight: 700;
  color: var(--accent);
  padding: 8px 0;
  letter-spacing: 0.02em;
}
.draw-result.pop { animation: drawPop 0.45s var(--ease); }
@keyframes drawPop {
  0% { transform: scale(0.6); opacity: 0; }
  60% { transform: scale(1.08); }
  100% { transform: scale(1); opacity: 1; }
}

/* ---------- 分类标题 ---------- */
.cat-title {
  grid-column: 1 / -1;
  font-size:var(--qz-font-size-24);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
  margin: 28px 0 4px;
  padding-left: 4px;
}
.cat-title:first-of-type { margin-top: 0; }
.cat-title::after {
  content: "";
  display: block;
  width: 36px;
  height: 3px;
  border-radius: 10px;
  background: var(--accent);
  margin-top: 8px;
}

/* ---------- 文件拖放区 ---------- */
.file-drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 28px 16px;
  text-align: center;
  transition: border-color 0.25s, background 0.25s;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.file-label {
  color: var(--text-secondary);
  font-size:var(--qz-font-size-14);
  cursor: pointer;
  display: block;
}
.img-preview {
  margin-top: 14px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.img-preview img {
  max-width: 140px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

/* ---------- 渐变预览 ---------- */
.gradient-preview {
  display: block;
  width: 100%;
  margin-top: 14px;
  height: 96px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-sm);
}

/* ---------- 阴影调试舞台 ---------- */
.shadow-stage {
  margin-top: 16px;
  padding: 20px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: center;
}
.shadow-box {
  display: block;
  width: min(100%, 600px);
  height: auto;
}

/* ---------- Emoji 大全 ---------- */
.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  gap: 6px;
  margin-top: 14px;
  max-height: 280px;
  overflow-y: auto;
  padding: 2px;
}
.emoji-grid button {
  font-size:var(--qz-font-size-24);
  padding: 8px 4px;
  border: none;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
  line-height: 1.2;
}
.emoji-grid button:hover {
  background: var(--accent-soft);
  transform: scale(1.15);
}
.emoji-grid button:active { transform: scale(0.95); }
.emoji-tab {
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.emoji-tab.active {
  background: var(--accent) !important;
  color: #fff !important;
}

/* ---------- 颜色转换器 ---------- */
.color-swatch {
  display: block;
  width: 100%;
  margin-top: 12px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--hair);
  transition: background 0.3s;
}

/* ---------- 调色板 ---------- */
.palette-strip {
  display: flex;
  gap: 4px;
  margin-top: 14px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.palette-strip button {
  flex: 1;
  height: 44px;
  display: grid;
  grid-template-rows: 1fr auto;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.15s;
}
.palette-strip canvas { width: 100%; height: 26px; }
.palette-strip button span {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size:var(--qz-font-size-14);
  font-family: var(--mono);
  line-height: 18px;
}
.palette-strip button:hover { transform: scaleY(1.08); }
.palette-strip button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
@media (max-width: 720px) {
  .palette-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); overflow: visible; }
}

/* ---------- CSS 三角形 ---------- */
.tri-stage {
  margin-top: 14px;
  padding: 24px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
}
.tri-dir.active { background: var(--accent); color: #fff; }

/* ---------- ASCII 码表 ---------- */
.ascii-table {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(52px, 1fr));
  gap: 4px;
  max-height: 260px;
  overflow-y: auto;
}
.ascii-cell {
  padding: 6px 4px;
  text-align: center;
  font-size:var(--qz-font-size-14);
  font-family: var(--mono);
  background: var(--bg-secondary);
  border-radius:10px;
  cursor: pointer;
  transition: background 0.15s;
}
.ascii-cell:hover { background: var(--accent-soft); }
.ascii-cell b { display: block; font-size:var(--qz-font-size-16); color: var(--accent); }

/* ---------- 下拉选择框 ---------- */
select.tool-input {
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 30px;
  cursor: pointer;
}

/* ============================================================
   v2 · 分类导航 / 收藏 / 返回顶部 / 新工具布局
   ============================================================ */
.layout{grid-column:1/-1;display:grid;grid-template-columns:190px minmax(0,1fr);gap:26px;align-items:start}
.cat-nav{position:sticky;top:calc(var(--qz-header-height, 60px) + 12px);display:flex;flex-direction:column;gap:2px}
.cat-nav a{padding:8px 12px;border-radius:10px;color:var(--text-secondary);text-decoration:none;font-size:var(--qz-font-size-14)}
.cat-nav a:hover{background:var(--accent-soft);color:var(--accent)}
.cat-nav a.on{background:var(--accent-soft);color:var(--accent);font-weight:400}
.cat-chips{grid-column:1/-1;display:none;position:sticky;top:var(--qz-header-height, 60px);z-index:40;gap:7px;overflow-x:auto;padding:8px 2px;background:var(--bg);scrollbar-width:none}
.cat-chips::-webkit-scrollbar{display:none}
.cat-chips a{flex-shrink:0;padding:7px 13px;border-radius:999px;background:var(--bg-secondary);color:var(--text-secondary);font-size:var(--qz-font-size-14);text-decoration:none}
.cat-chips a.on{background:var(--accent-soft);color:var(--accent)}
.cat-chips a#fav-toggle.on{background:var(--accent);color:#fff}
@media(max-width: 1200px){
  .layout{grid-template-columns:1fr}
  .cat-nav{display:none}
  .cat-chips{display:flex}
}
.tool-card{position:relative}
.fav-btn{position:absolute;top:14px;right:14px;width:32px;height:32px;border:none;background:transparent;border-radius:10px;color:var(--text-tertiary);cursor:pointer;font-size:var(--qz-font-size-16);line-height:1}
.fav-btn:hover{background:var(--accent-soft)}
.tool-card.is-fav .fav-btn{color:#FF9F0A}
.to-top{position:fixed;right:22px;bottom:26px;z-index:90;width:42px;height:42px;border-radius:50%;border:0.5px solid var(--border);background:var(--card);color:var(--text-secondary);font-size:var(--qz-font-size-16);cursor:pointer;box-shadow:var(--shadow-sm);opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--accent)}
.tool-grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.tool-grid2 label{display:flex;flex-direction:column;gap:5px;font-size:var(--qz-font-size-14);color:var(--text-secondary)}
.tool-grid2 input[type=number],.tool-grid2 input[type=file]{width:100%}
[data-tool="listcompare"] .tool-grid2{grid-template-columns:repeat(2,minmax(0,1fr))}
[data-tool="listcompare"] label{min-width:0;font-size:var(--qz-font-size-14)}
[data-tool="listcompare"] .tool-input{font-size:var(--qz-font-size-16);min-width:0}
[data-tool="listcompare"] .tool-actions label{display:flex;align-items:center;gap:6px;min-height:44px}
[data-tool="listcompare"] .btn{min-height:44px}
[data-tool="listcompare"] .btn:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:560px){[data-tool="listcompare"] .tool-grid2{grid-template-columns:minmax(0,1fr)}}
.tool-select{width:100%;height:44px;border-radius:10px;border:1px solid var(--border);background:var(--card);color:var(--text);padding:0 12px;font-family:var(--font);font-size:var(--qz-font-size-14)}
.tool-row{margin-bottom:12px}
.hero-back{margin:14px 0 2px;font-size:var(--qz-font-size-14)}
.hero-back a{color:var(--accent);text-decoration:none}

/* ============================================================
   v3 · 迷你卡网格 / 分类 Tab / 工具弹窗
   ============================================================ */
#tool-vault{grid-column:1/-1}
#tool-vault[hidden]{display:none}
.cat-tabs-shell{grid-column:1/-1;position:sticky;top:var(--qz-header-height, 60px);z-index:40;display:grid;grid-template-columns:minmax(0,1fr);align-items:center;background:var(--bg)}
.cat-tabs-shell[data-tab-overflow="true"][data-tab-at-end="false"]{grid-template-columns:minmax(0,1fr) auto}
.cat-tabs{display:flex;min-width:0;gap:4px;overflow-x:auto;padding:10px 0 18px;scrollbar-width:none;background:var(--bg)}
.cat-tabs-cue{display:none;min-width:62px;min-height:44px;align-items:center;justify-content:flex-end;color:var(--accent);font-size:var(--qz-font-size-14);pointer-events:none}
.cat-tabs-shell[data-tab-overflow="true"][data-tab-at-end="false"] .cat-tabs-cue{display:flex}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tabs button{display:inline-flex;align-items:center;justify-content:center;text-align:center;line-height:1.2;flex-shrink:0;min-height:44px;padding:0 14px;border-radius:10px;font:inherit;font-size:var(--qz-font-size-14);color:var(--text-secondary);border:0;background:transparent;cursor:pointer}
.cat-tabs button:hover{background:var(--bg-secondary);color:var(--text)}
.cat-tabs button.on{background:var(--accent-soft);color:var(--accent);font-weight:600}
@media(max-width: 1200px){.cat-tabs-shell{position:static}}
.mini-grid{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
html:not(.wt-ready) .mini-grid{min-height:3600px}
@media(max-width: 1200px){.mini-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width: 720px){.mini-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width: 900px){html:not(.wt-ready) .mini-grid{min-height:6200px}}
.mini-card{position:relative;min-width:0;background:var(--card);border:1px solid var(--border-light);border-radius:14px;padding:0;overflow:hidden;transition:transform var(--motion-feedback) var(--ease),background-color var(--motion-feedback) var(--ease),border-color var(--motion-feedback) var(--ease),box-shadow var(--motion-feedback) var(--ease)}
.mini-card:hover{background:color-mix(in srgb,var(--card) 96%,var(--accent));border-color:color-mix(in srgb,var(--border) 78%,var(--accent));box-shadow:none}
.mini-open{display:flex;flex-direction:column;align-items:flex-start;width:100%;height:100%;min-height:134px;padding:15px 48px 15px 15px;border:0;background:transparent;color:inherit;text-align:left;text-decoration:none;font:inherit;cursor:pointer}
.mini-open:focus-visible,.mini-star:focus-visible,.cat-tabs button:focus-visible,.tm-close:focus-visible{outline:2px solid color-mix(in srgb,var(--accent) 72%,var(--text));outline-offset:-3px}
.mini-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;font-size:var(--qz-font-size-14);font-weight:600;background:color-mix(in srgb,var(--tint) 11%,transparent);color:var(--tint);transform-origin:center;transition:transform var(--motion-feedback) var(--ease),background-color var(--motion-feedback) var(--ease),color var(--motion-feedback) var(--ease)}
.mini-name{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;margin-top:9px;font-size:var(--qz-font-size-14);font-weight:600;line-height:1.35;color:var(--text)}
.mini-desc{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;margin-top:4px;font-size:var(--qz-font-size-14);line-height:1.45;color:var(--text-secondary)}
.mini-star{position:absolute;z-index:2;top:4px;right:4px;width:44px;height:44px;border:none;background:transparent;border-radius:10px;color:var(--text-tertiary);cursor:pointer;font-size:var(--qz-font-size-16);line-height:1;display:grid;place-items:center;text-align:center}
.mini-star:hover{background:var(--accent-soft);color:#FF9F0A}
.mini-empty{grid-column:1/-1;text-align:center;color:var(--text-secondary);padding:48px 0;font-size:var(--qz-font-size-14)}
.tool-modal{position:fixed;inset:0;z-index:200;background:rgba(8,10,14,.52);display:flex;align-items:flex-start;justify-content:center;overflow-y:auto;padding:44px 16px;backdrop-filter:blur(10px) saturate(120%);-webkit-backdrop-filter:blur(10px) saturate(120%)}
.tool-modal[hidden]{display:none}
.tool-modal-panel{background:color-mix(in srgb,var(--card) 96%,transparent);border:1px solid color-mix(in srgb,var(--border-light) 82%,white);border-radius:18px;max-width:760px;width:100%;padding:20px 24px 26px;box-shadow: 0 18px 50px rgba(7,10,15,.14),inset 0 1px 0 rgba(255,255,255,.34);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%)}
.tool-modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.tool-modal-head h3{margin:0;font-size:var(--qz-font-size-16);font-weight:400;color:var(--text)}
.tm-close{width:44px;height:44px;border:none;border-radius:10px;background:var(--bg-secondary);color:var(--text-secondary);font-size:var(--qz-font-size-20);cursor:pointer;display:grid;place-items:center;text-align:center;line-height:1}
.tm-close:hover{color:var(--text)}
.leaf{width:26px;height:26px;color:var(--accent);flex-shrink:0}

/* ============================================================
   v5 · 手机端专项优化
   ============================================================ */
@media(max-width: 720px){
  .hero{padding:30px 16px 20px}
  .hero-title{font-size:var(--qz-font-size-32) !important;line-height:1.15}
  .hero-sub{font-size:var(--qz-font-size-14)}
  .hero-search{height:52px;margin-top:20px;padding-left:15px;border-radius:14px}
  .hero-search input{font-size:var(--qz-font-size-16)}
  .hero-search kbd{display:none}
  .container{padding-right:16px;padding-left:16px;padding-bottom:56px}
  .cat-tabs{padding:8px 0 14px;gap:2px}
  .cat-tabs button{padding:0 13px;font-size:var(--qz-font-size-14)}
  .mini-grid{gap:9px}
  .mini-card{padding:0;border-radius:14px}
  .mini-open{min-height:126px;padding:13px 44px 13px 13px}
  .mini-icon{width:34px;height:34px}
  .mini-name{margin-top:8px;font-size:var(--qz-font-size-14)}
  .mini-desc{-webkit-line-clamp:1;font-size:var(--qz-font-size-14)}
  .mini-star{width:44px;height:44px;top:4px;right:4px;font-size:var(--qz-font-size-16)}
  .btn{min-height:44px}
  .tool-input{font-size:var(--qz-font-size-16)}
  /* 弹窗手机全屏化 */
  .tool-modal{padding:0;align-items:stretch}
  .tool-modal-panel{max-width:none;width:100%;min-height:100dvh;border-radius:0;padding:14px 16px calc(28px + env(safe-area-inset-bottom))}
  .tool-modal-head{position:sticky;top:0;z-index:5;background:var(--card);margin:0 -16px 14px;padding:10px 16px;border-bottom:1px solid var(--hair)}
  .tool-modal-head h3{font-size:var(--qz-font-size-16)}
  .tm-close{width:44px;height:44px;font-size:var(--qz-font-size-20)}
  .footer{padding-bottom:calc(20px + env(safe-area-inset-bottom))}
}
/* 高频控件在桌面和触屏上都保留稳定的可点区域 */
.btn,.to-top,.aic-del{min-width:44px;min-height:44px}
a{-webkit-tap-highlight-color:rgba(0,113,227,.12)}
.tool-modal-body .tool-card{background:transparent;border:none;box-shadow:none;border-radius:0;padding:0}
.tool-modal-body .tool-card:hover{transform:none}
.tool-modal-body .tool-head{display:grid;grid-template-columns:40px minmax(0,1fr);align-items:center;gap:0 12px;margin-bottom:16px}
.tool-modal-body .tool-icon{grid-column:1;margin:0}
.tool-modal-body .tool-name{display:none}
.tool-modal-body .tool-desc{grid-column:2;font-size:var(--qz-font-size-14);line-height:1.5}
.aic-row{display:flex;gap:8px;margin-bottom:8px;align-items:flex-start}
.aic-row .tool-select{width:110px;flex-shrink:0;height:44px;padding:0 8px}
.aic-row .tool-input{flex:1}
.aic-del{width:44px;height:44px;border:none;background:var(--bg-secondary);border-radius:10px;color:var(--text-secondary);cursor:pointer;font-size:var(--qz-font-size-16);flex-shrink:0}
.aic-del:hover{color:var(--accent)}
.aim-table table{width:100%;border-collapse:collapse;font-size:var(--qz-font-size-14)}
.aim-table th,.aim-table td{padding:7px 8px;border-bottom:1px solid var(--hair);text-align:left;white-space:nowrap}
.aim-table th{color:var(--text-secondary);font-weight:400}
.aim-table td:first-child{font-weight:400;color:var(--text)}
.aim-note{font-size:var(--qz-font-size-14);color:var(--text-tertiary);margin-top:8px}
.dp-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.dp-chip{border:1px solid var(--hair);background:var(--bg-secondary);border-radius:999px;padding:5px 10px;font:inherit;font-size:var(--qz-font-size-14);color:var(--text-secondary);cursor:pointer;user-select:none}
.dp-chip.on{background:var(--accent);border-color:var(--accent);color:#fff}
.pf-var-row{display:flex;gap:8px;align-items:center;margin-bottom:6px}
.pf-var-row label{width:110px;font-size:var(--qz-font-size-14);color:var(--text-secondary);flex-shrink:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-var-row .tool-input{flex:1}
/* v9 输出区交互增强 */
.out-wrap{position:relative}
.out-wrap .tool-output{padding-right:58px}
.out-copy{position:absolute;top:4px;right:4px;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--hair);background:var(--bg);color:var(--text-secondary);border-radius:10px;font-size:var(--qz-font-size-14);padding:0;cursor:pointer;opacity:0;transition:opacity .15s ease}
.out-wrap:has(.tool-output:empty) .out-copy{display:none}
@media (hover:hover){.out-wrap:hover .out-copy,.out-copy:focus-visible{opacity:1}}
@media (hover:none){.out-copy{opacity:.9}}
.out-copy:hover{color:var(--accent);border-color:var(--accent)}
.out-copy:active{transform:scale(.94)}
pre.tool-output:empty::before{content:"结果将显示在这里";color:var(--text-tertiary);font-size:var(--qz-font-size-14)}
.tool-input:focus-visible{border-color:transparent;outline:2px solid color-mix(in srgb,var(--accent) 72%,var(--text));outline-offset:0}
.btn:focus-visible,.to-top:focus-visible,.out-copy:focus-visible,.dp-chip:focus-visible,.aic-del:focus-visible,.tool-select:focus-visible{outline:2px solid color-mix(in srgb,var(--accent) 72%,var(--text));outline-offset:2px}
.tc-opts{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:8px;font-size:var(--qz-font-size-14);color:var(--text-secondary);align-items:center}
.tc-opts label{display:flex;align-items:center;gap:4px;cursor:pointer}
.tc-opts input[type=checkbox]{accent-color:var(--accent)}
.tc-opts .tool-select{height:44px;padding:0 6px;border:1px solid var(--hair);border-radius:10px;background:var(--bg);color:var(--text)}
.privacy-note{margin:10px 0 0;color:var(--text-tertiary);font-size:var(--qz-font-size-14);line-height:1.55}
.tc-label{display:flex;align-items:center;gap:6px;font-size:var(--qz-font-size-14);color:var(--text-secondary);flex:1}
.tc-label input[type=range]{flex:1}

/* ---------- 本地数据与图片工具 ---------- */
.csv-columns{
  margin:12px 0;
  padding:12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
}
.csv-columns legend{padding:0 5px;color:var(--text-secondary);font-size:var(--qz-font-size-14)}
.csv-column-list{display:flex;flex-wrap:wrap;gap:8px 14px}
.csv-column-list label{display:flex;align-items:center;gap:6px;min-height:32px;font-size:var(--qz-font-size-14);color:var(--text)}
.crop-drop{cursor:pointer;outline:none}
.crop-drop:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.crop-fields{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:12px}
.crop-fields label{display:flex;flex-direction:column;gap:5px;font-size:var(--qz-font-size-14);color:var(--text-secondary)}
.crop-canvas{
  display:block;
  width:100%;
  height:auto;
  max-height:62vh;
  margin-top:14px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--bg-secondary);
  cursor:crosshair;
  touch-action:none;
  user-select:none;
}
.crop-canvas:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.media-edit-canvas{max-height:70vh}
.media-video{display:block;width:100%;max-height:62vh;margin:14px 0;border:1px solid var(--border);border-radius:var(--radius-sm);background:#000}
.media-video[hidden],.media-shot-canvas[hidden]{display:none}
.media-shot-canvas{width:100%;height:auto;max-height:62vh;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-secondary)}
.stitch-drop{cursor:pointer;outline:none}
.stitch-drop:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.stitch-list{display:grid;gap:8px;margin:12px 0 0;padding:0;list-style:none;max-height:330px;overflow:auto}
.stitch-list:empty{display:none}
.stitch-item{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:10px;align-items:center;padding:8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-secondary)}
.stitch-thumb{display:block;width:56px;height:56px;border-radius:8px;object-fit:cover;background:#f2f3f5}
.stitch-detail{display:flex;min-width:0;flex-direction:column;gap:4px}
.stitch-detail strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:var(--qz-font-size-14);font-weight:600;color:var(--text)}
.stitch-detail small{font-size:var(--qz-font-size-14);color:var(--text-tertiary)}
.stitch-item-actions{display:flex;gap:6px}
.stitch-item-button{min-width:44px;min-height:44px;padding:0 9px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text-secondary);font:inherit;cursor:pointer}
.stitch-item-button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.stitch-item-button:focus-visible{outline:2px solid color-mix(in srgb,var(--accent) 72%,var(--text));outline-offset:2px}
.stitch-item-button:disabled{opacity:.35;cursor:not-allowed}
.stitch-color{min-height:44px;padding:4px;cursor:pointer}
.stitch-summary{margin:4px 0 0;color:var(--text-secondary);font-size:var(--qz-font-size-14);line-height:1.55}
.stitch-summary.error{color:#FF3B30}
@media (max-width:720px){
  .crop-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
  .crop-canvas{max-height:48vh}
  .stitch-item{grid-template-columns:48px minmax(0,1fr)}
  .stitch-thumb{width:48px;height:48px}
  .stitch-item-actions{grid-column:2;flex-wrap:wrap}
}

/* ===== v13 动效体系 ===== */
@keyframes panelIn{from{opacity:0;transform:translateY(10px) scale(.985);filter:blur(4px)}to{opacity:1;transform:none;filter:none}}
@keyframes outFlash{0%{background:var(--accent-soft)}100%{background:transparent}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.tool-modal{animation:fadeIn var(--motion-feedback) ease-out}
.tool-modal.closing{opacity:0;transition:opacity var(--motion-feedback) ease-out}
.tool-modal-panel{will-change:transform,opacity}
.tool-modal:not([hidden]):not(.closing) .tool-modal-panel{animation:panelIn var(--motion-material) var(--ease)}
.tool-modal.closing .tool-modal-panel{transform:translateY(8px) scale(.985);opacity:.96;transition:transform var(--motion-feedback) ease-out,opacity var(--motion-feedback) ease-out}
.mini-card{transition:transform var(--motion-feedback) var(--ease),background-color var(--motion-feedback) ease,box-shadow var(--motion-feedback) ease,border-color var(--motion-feedback) ease}
.mini-icon{transition:transform var(--motion-feedback) var(--ease),background-color var(--motion-feedback) ease,color var(--motion-feedback) ease}
.tool-output.flash{animation:outFlash .7s ease}
.btn{transition:transform .12s ease,background .18s ease,color .18s ease,box-shadow .18s ease}
.btn:active{transform:scale(.96)}
.chip{transition:transform .12s ease,background .18s ease,color .18s ease}
.chip:active{transform:scale(.95)}
.cat-tabs button{transition:background .18s ease,color .18s ease,transform .12s ease}
.cat-tabs button:active{transform:scale(.95)}
.tool-input{transition:border-color var(--motion-feedback) ease,box-shadow var(--motion-feedback) ease,background-color var(--motion-feedback) ease}
.tool-input:focus{box-shadow:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important}
  body,.hero-search,.tool-input,.btn,.chip,.cat-tabs button,.mini-card,.mini-icon,.mini-star,.to-top,.toast,.tool-modal,.tool-modal-panel,.out-copy{transition-duration:var(--motion-feedback)!important;transition-timing-function:ease-out!important}
  .mini-card:hover,.mini-card:active,.mini-open:active .mini-icon,.btn:active,.chip:active,.cat-tabs button:active,.tool-modal.closing .tool-modal-panel{transform:none!important}
  .toast{transform:translateX(-50%);opacity:0}
  .toast.show{transform:translateX(-50%);opacity:1}
  .tool-modal-panel{filter:none!important}
  .tool-modal.closing{opacity:0}
}
.tri-preview { display: block; width: 180px; max-width: 100%; height: 120px; }
@media (hover:hover){
  .mini-card:hover{transform:translateY(-2px)}
  .mini-card:hover .mini-icon{transform:translateY(-1px) scale(1.04)}
}
.mini-open:active .mini-icon{transform:scale(.97)}
@media (prefers-reduced-transparency:reduce){
  .tool-modal{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(8,10,14,.66)}
  .tool-modal-panel{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--card)}
}
.regex-replace{margin-top:10px;padding-top:10px;border-top:1px solid var(--hair)}
.regex-rep-h{font-size:var(--qz-font-size-14);font-weight:600;color:var(--text);margin-bottom:6px}
.regex-rep-pre{margin:0;white-space:pre-wrap;word-break:break-all;font-size:var(--qz-font-size-14);color:var(--text);background:var(--accent-soft);border-radius:10px;padding:10px}

/* Shared visual contract. Keep every tool controller and its markup intact. */
html:root {
  --bg:var(--qz-canvas); --bg-secondary:var(--qz-surface-muted); --card:var(--qz-surface);
  --text:var(--qz-ink); --text-secondary:var(--qz-ink-secondary); --text-tertiary:var(--qz-ink-tertiary);
  --accent:var(--qz-accent); --accent-hover:var(--qz-accent-hover); --accent-soft:var(--qz-accent-soft);
  --border:var(--qz-line-strong); --border-light:var(--qz-line); --hair:var(--qz-line);
  --radius:var(--qz-radius-surface); --radius-sm:var(--qz-radius-control);
  --content-width:var(--qz-container);
}
.hero { padding:48px var(--qz-gutter) 28px; text-align:center; }
.hero-title { font-size:var(--qz-page-title); line-height:1.35; letter-spacing:-.02em; white-space:normal; margin-bottom:var(--qz-space-2); }
.hero-sub { font-size:var(--qz-font-size-16); line-height:var(--qz-leading-body); }
.hero-search { max-width:var(--qz-reading); height:60px; margin:var(--qz-space-6) auto 0; border-radius:var(--radius-sm); box-shadow:none; text-align:left; }
.mini-open { padding:var(--qz-space-4); padding-right:var(--qz-space-12); min-height:156px; }
.mini-name { font-size:var(--qz-font-size-16); line-height:1.5; }
.mini-desc { font-size:var(--qz-font-size-14); line-height:1.65; -webkit-line-clamp:2; }
.mini-icon,.tool-icon { background:var(--accent-soft); color:var(--accent); border-radius:var(--radius-sm); }
.mini-icon img,.tool-icon img { display:block; width:24px; height:24px; }
html.dark .mini-icon img,html.dark .tool-icon img { filter:brightness(1.65) saturate(.7); }
.mini-star svg { width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:1.6; }
.mini-star:hover,.mini-star[aria-pressed="true"] { color:var(--accent); background:var(--accent-soft); }
.mini-star[aria-pressed="true"] svg { fill:currentColor; }
.tool-modal { background:var(--qz-overlay); backdrop-filter:none; -webkit-backdrop-filter:none; }
.tool-modal-panel { align-self:flex-start; background:var(--card); border-color:var(--border-light); border-radius:var(--radius); box-shadow:var(--qz-shadow-menu); backdrop-filter:none; -webkit-backdrop-filter:none; }
.tool-modal-head { padding-bottom:var(--qz-space-3); border-bottom:1px solid var(--hair); gap:var(--qz-space-3); }
.tool-modal-head h3 { font-size:var(--qz-font-size-20); font-weight:600; line-height:1.5; overflow-wrap:anywhere; }
.tm-close { flex-shrink:0; }
.tool-modal-body .tool-desc,.privacy-note,.aim-note,.tool-hint,.tc-opts,.tc-label,.field-label,.csv-columns legend { font-size:var(--qz-font-size-14); line-height:var(--qz-leading-body); }
.tool-input,.tool-select { font-size:var(--qz-font-size-16); }
.tool-input:not(textarea):not([type="range"]):not([type="checkbox"]):not([type="radio"]),.tool-select { min-height:var(--qz-control); }
.btn { font-size:var(--qz-font-size-14); font-weight:600; border-radius:var(--radius-sm); line-height:1.5; }
.btn.primary,.chip.on,.dp-chip.on { color:var(--qz-on-accent); }
.dp-chip,.chip,.csv-column-list label,.tc-opts label { min-height:var(--qz-control); align-items:center; }
.out-copy { opacity:1; background:var(--card); }
.tool-output { font-size:var(--qz-font-size-14); line-height:1.75; }
.tool-output.error,.stitch-summary.error { color:var(--qz-danger); }
.tool-modal :focus-visible,.mini-grid :focus-visible { outline:2px solid var(--qz-focus); outline-offset:3px; }
.tool-modal .tool-input:focus-visible { outline-offset:0; }
.tc-opts label:has(select) { white-space:nowrap; }
.tc-opts .tool-select { width:auto; min-width:4rem; }
.chip { border:1px solid var(--border-light); box-shadow:none; }
.chip.on { border-color:var(--accent); }
.tool-input[type="color"] { padding:4px; }
.aic-row .tc-label { flex:0 0 auto; min-height:var(--qz-control); white-space:nowrap; }
.tool-input[type="file"]::file-selector-button { min-height:32px; margin-right:8px; padding:4px 10px; border:1px solid var(--border-light); border-radius:var(--radius-sm); background:var(--card); color:var(--text); font:inherit; cursor:pointer; }
@media(max-width:560px) {
  [data-tool="icsgen"] .tool-grid2,[data-tool="jsondiff"] .tool-grid2 { grid-template-columns:minmax(0,1fr); }
}
@media(max-width:720px) {
  .hero { padding:var(--qz-space-6) var(--qz-gutter); }
  .hero-title { font-size:var(--qz-font-size-28)!important; }
  .hero-search input { font-size:var(--qz-font-size-16); }
  .mini-open { min-height:164px; padding:var(--qz-space-3); padding-top:var(--qz-space-4); }
  .mini-name { font-size:var(--qz-font-size-14); margin-top:var(--qz-space-3); }
  .mini-desc { -webkit-line-clamp:2; font-size:var(--qz-font-size-14); }
  .tool-modal-panel { border-radius:0; padding-top:0; }
  .tool-modal-head h3 { font-size:var(--qz-font-size-20); }
  .tool-modal-head { margin-bottom:var(--qz-space-4); }
}
@media(prefers-reduced-motion:reduce) { .mini-grid *,.tool-modal * { transition:none!important; animation:none!important; } }

/* Keep catalogue labels aligned with the shared navigation scale. */
.mini-name { font-size:var(--qz-font-size-16); font-weight:600; line-height:1.5; }
.mini-desc { font-size:var(--qz-font-size-14); line-height:1.75; }
.hero-search input { font-size:var(--qz-font-size-16); }
.mini-open { display:grid; grid-template-columns:40px minmax(0,1fr); grid-template-rows:auto 1fr; align-items:start; gap:10px 12px; min-height:144px; padding:20px; }
.mini-open .mini-icon { grid-column:1; grid-row:1; width:40px; height:40px; }
.mini-open .mini-name { grid-column:2; grid-row:1; align-self:center; margin:0; padding-right:22px; }
.mini-open .mini-desc { grid-column:1/-1; grid-row:2; margin:0; }
.hero-trial { display:flex; justify-content:center; align-items:center; flex-wrap:wrap; gap:6px 12px; margin:16px auto 0; font-size:var(--qz-font-size-14); color:var(--text-secondary); }
.hero-trial a { display:inline-flex; align-items:center; min-height:44px; color:var(--accent); text-decoration:none; text-underline-offset:4px; }
.hero-trial a:hover { text-decoration:underline; }
.hero-trial span { padding:2px 8px; border-radius:6px; background:var(--accent-soft); color:var(--accent); font-size:var(--qz-font-size-12); }
@media(max-width:720px){ .mini-open { grid-template-columns:1fr; grid-template-rows:40px auto 1fr; gap:10px; padding:16px; min-height:176px; } .mini-open .mini-name { grid-column:1; grid-row:2; padding:0; } .mini-open .mini-desc { grid-row:3; } .mini-name { font-size:var(--qz-font-size-16); } .hero-trial { margin-top:10px; gap:4px 8px; } }

/* Preserve compact discovery while keeping search focus and long titles readable. */
.hero-search:has(input:focus-visible) { outline:2px solid var(--qz-focus,var(--accent)); outline-offset:3px; }
.hero-title { white-space:normal; overflow-wrap:break-word; }


/* Preserved stylesheet: assets/shared/design-system.css */
/*
 * QZ shared design system
 * 1240px holds the product shell. 720px holds the primary task or reading line.
 * Components stay neutral so every page can keep one clear visual center.
 */

:root {
  color-scheme: light;

  /* Color */
  --qz-canvas: #f7f8fa;
  --qz-surface: #ffffff;
  --qz-surface-muted: #eef3f9;
  --qz-surface-strong: #e8ebef;
  --qz-ink: #172033;
  --qz-ink-secondary: #667085;
  --qz-ink-tertiary: #68707c;
  --qz-accent: #2563eb;
  --qz-accent-hover: #1d4ed8;
  --qz-accent-soft: rgba(37, 99, 235, .08);
  --qz-on-accent: #ffffff;
  --qz-danger: #b42318;
  --qz-success: #067647;
  --qz-line: #e5e7eb;
  --qz-line-strong: rgba(23, 25, 29, .18);
  --qz-overlay: rgba(20, 23, 29, .42);
  --qz-focus: #2563eb;

  /* Type */
  --qz-font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --qz-font-size-12: .75rem;
  --qz-font-size-14: .875rem;
  --qz-font-size-16: 1rem;
  --qz-font-size-20: 1.25rem;
  --qz-font-size-24: 1.5rem;
  --qz-font-size-32: 2rem;
  --qz-font-size-28: clamp(1.5rem, 2.2vw, 1.75rem);
  --qz-font-size-40: clamp(1.5rem, 2.8vw, 2rem);
  --qz-page-title: clamp(1.75rem, 2.6vw, 2.25rem);
  --qz-leading-tight: 1.16;
  --qz-leading-body: 1.68;
  --qz-tracking-tight: -.015em;

  /* Space */
  --qz-space-1: .25rem;
  --qz-space-2: .5rem;
  --qz-space-3: .75rem;
  --qz-space-4: 1rem;
  --qz-space-6: 1.5rem;
  --qz-space-8: 2rem;
  --qz-space-12: 3rem;
  --qz-space-16: 4rem;
  --qz-space-24: 6rem;

  /* Geometry */
  --qz-container: 77.5rem;
  --qz-reading: 45rem;
  --qz-gutter: clamp(1rem, 4vw, 1.5rem);
  --qz-control: 2.75rem;
  --qz-nav-height: 3.75rem;
  --qz-header-height: 4rem;
  --qz-radius-control: .625rem;
  --qz-radius-surface: .875rem;
  --qz-radius-pill: 999px;
  --qz-stroke: 1px;

  /* Depth and motion */
  --qz-shadow-menu: 0 18px 48px rgba(40, 47, 58, .12);
  --qz-shadow-float: 0 12px 30px rgba(40, 47, 58, .1);
  --qz-ease-out: cubic-bezier(.16, 1, .3, 1);
  --qz-ease-spring: cubic-bezier(.2, .8, .2, 1);
  --qz-duration-fast: 140ms;
  --qz-duration: 220ms;
  --qz-duration-material: 420ms;
  --qz-layer-nav: 80;
  --qz-layer-menu: 100;
  --qz-layer-dialog: 120;
}

html.dark,
html[data-theme="dark"] {
  color-scheme: dark;
  --qz-canvas: #111318;
  --qz-surface: #171a20;
  --qz-surface-muted: #20242c;
  --qz-surface-strong: #292e38;
  --qz-ink: #f1f3f6;
  --qz-ink-secondary: #b8bec8;
  --qz-ink-tertiary: #929aa7;
  --qz-accent: #58a8f7;
  --qz-accent-hover: #78b9f9;
  --qz-accent-soft: rgba(88, 168, 247, .12);
  --qz-on-accent: #111318;
  --qz-danger: #fda29b;
  --qz-success: #75e0a7;
  --qz-line: rgba(241, 243, 246, .11);
  --qz-line-strong: rgba(241, 243, 246, .2);
  --qz-overlay: rgba(5, 7, 11, .68);
  --qz-focus: #78b9f9;
  --qz-shadow-menu: 0 20px 52px rgba(4, 6, 10, .46);
  --qz-shadow-float: 0 14px 34px rgba(4, 6, 10, .38);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body.qz-shell {
  min-width: 20rem;
  margin: 0;
  background: var(--qz-canvas);
  color: var(--qz-ink);
  font-family: var(--qz-font-sans);
  font-size: var(--qz-font-size-16);
  line-height: var(--qz-leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.qz-shell *,
.qz-shell *::before,
.qz-shell *::after {
  box-sizing: border-box;
}

.qz-shell a { color: inherit; text-decoration: none; }
.qz-shell button,
.qz-shell input,
.qz-shell select,
.qz-shell textarea { font: inherit; }
.qz-shell button { color: inherit; }

.qz-shell ::selection { background: var(--qz-accent-soft); color: var(--qz-ink); }
.qz-shell :focus-visible,
.qz-header :focus-visible,
.qz-mobile-menu :focus-visible,
.qz-command-overlay :focus-visible {
  outline: 2px solid var(--qz-focus);
  outline-offset: 3px;
}

.qz-shell ::-webkit-scrollbar { width: 10px; height: 10px; }
.qz-shell ::-webkit-scrollbar-track { background: transparent; }
.qz-shell ::-webkit-scrollbar-thumb {
  border: 3px solid var(--qz-canvas);
  border-radius: var(--qz-radius-pill);
  background: var(--qz-line-strong);
}

.qz-skip-link,
.skip-link {
  position: fixed;
  z-index: calc(var(--qz-layer-dialog) + 1);
  top: var(--qz-space-3);
  left: var(--qz-space-3);
  padding: .625rem .875rem;
  border-radius: var(--qz-radius-control);
  background: var(--qz-ink);
  color: var(--qz-surface);
  font-size: var(--qz-font-size-14);
  font-weight:600;
  transform: translateY(calc(-100% - 1.5rem));
  transition: transform var(--qz-duration-fast) var(--qz-ease-out);
}

.qz-skip-link:focus,
.skip-link:focus { transform: translateY(0); }

/* Layout */
.qz-container {
  width: min(100% - (2 * var(--qz-gutter)), var(--qz-container));
  margin-inline: auto;
}

.qz-reading {
  width: min(100%, var(--qz-reading));
  margin-inline: auto;
}

.qz-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--qz-reading)) minmax(15rem, 1fr);
  gap: clamp(2.5rem, 7vw, 5rem);
  align-items: start;
}

.qz-stage {
  display: grid;
  min-height: min(42rem, calc(100dvh - var(--qz-nav-height)));
  place-items: center;
  padding-block: clamp(var(--qz-space-16), 9vw, var(--qz-space-24));
}

.qz-stage > :first-child { width: min(100%, var(--qz-reading)); }

.qz-section { padding-block: clamp(var(--qz-space-12), 7vw, var(--qz-space-24)); }
.qz-section + .qz-section { border-top: var(--qz-stroke) solid var(--qz-line); }

.qz-section-head {
  display: grid;
  width: min(100%, var(--qz-reading));
  gap: var(--qz-space-3);
  margin-bottom: clamp(var(--qz-space-8), 5vw, var(--qz-space-12));
}

.qz-section-head h1,
.qz-section-head h2,
.qz-hero h1 {
  max-width: 15ch;
  margin: 0;
  color: var(--qz-ink);
  font-size: var(--qz-font-size-40);
  font-weight:600;
  line-height: var(--qz-leading-tight);
  letter-spacing: var(--qz-tracking-tight);
  text-wrap: balance;
}

.qz-section-head h2 { font-size: var(--qz-font-size-28); }
.qz-section-head p,
.qz-hero p,
.qz-copy {
  max-width: 66ch;
  margin: 0;
  color: var(--qz-ink-secondary);
}

.qz-hero {
  display: grid;
  width: min(100%, var(--qz-reading));
  gap: var(--qz-space-6);
  padding-block: clamp(var(--qz-space-16), 9vw, var(--qz-space-24));
}

.qz-hero-actions { display: flex; flex-wrap: wrap; gap: var(--qz-space-3); }

/* Shared navigation */
.qz-site-nav,
.site-nav,
.gn {
  position: sticky;
  z-index: var(--qz-layer-nav);
  top: 0;
  height: var(--qz-nav-height);
  border-bottom: var(--qz-stroke) solid var(--qz-line);
  background: color-mix(in srgb, var(--qz-canvas) 94%, transparent);
  -webkit-backdrop-filter: saturate(130%) blur(16px);
  backdrop-filter: saturate(130%) blur(16px);
}

.qz-nav-inner,
.nav-inner,
.gn-in {
  display: flex;
  align-items: center;
  width: min(100% - (2 * var(--qz-gutter)), var(--qz-container));
  height: 100%;
  margin-inline: auto;
  gap: clamp(var(--qz-space-4), 3vw, var(--qz-space-8));
}

.qz-brand,
.brand {
  display: inline-flex;
  min-width: max-content;
  align-items: center;
  gap: .625rem;
  color: var(--qz-ink);
  font-size: var(--qz-font-size-16);
  font-weight:600;
  line-height: 1.1;
  letter-spacing: -.01em;
}

.qz-brand-mark,
.brand .leaf,
.gn .leaf { width: 1.625rem; height: 1.625rem; flex: 0 0 auto; color: var(--qz-accent); }

.qz-brand small,
.brand small {
  display: block;
  margin-top: .125rem;
  color: var(--qz-ink-tertiary);
  font-size:var(--qz-font-size-14);
  font-weight:600;
  letter-spacing: .08em;
}

.qz-nav-links,
.nav-links,
.gn-links {
  display: flex;
  align-self: stretch;
  align-items: center;
  gap: clamp(.5rem, 1.5vw, 1.125rem);
  color: var(--qz-ink-secondary);
  font-size:var(--qz-font-size-14);
}

.qz-nav-links > a,
.qz-nav-links > button,
.nav-links > a,
.nav-links > button,
.gn-links > a,
.gn-links > button {
  position: relative;
  display: inline-flex;
  min-width: var(--qz-control);
  min-height: var(--qz-control);
  padding-inline: .25rem;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--qz-duration-fast) ease;
}

.qz-nav-links > :where(a, button):hover,
.nav-links > :where(a, button):hover,
.gn-links > :where(a, button):hover { color: var(--qz-ink); }

.qz-nav-links [aria-current="page"],
.nav-links [aria-current="page"],
.gn-links [aria-current="page"] { color: var(--qz-ink); font-weight:600; }

.qz-nav-links [aria-current="page"]::after,
.nav-links [aria-current="page"]::after,
.gn-links [aria-current="page"]::after {
  position: absolute;
  right: .25rem;
  bottom: -1px;
  left: .25rem;
  height: 2px;
  background: var(--qz-accent);
  content: "";
}

.qz-nav-actions,
.nav-actions,
.gn-r {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: .125rem;
}

.qz-icon-button,
.theme-button,
.menu-button,
.nav-icon,
.gn-theme-btn,
.gn-search-btn,
.gn-catalog-mobile {
  display: grid;
  width: var(--qz-control);
  height: var(--qz-control);
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: var(--qz-radius-pill);
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
  transition: background-color var(--qz-duration-fast) ease, color var(--qz-duration-fast) ease, transform var(--qz-duration-fast) ease;
}

.qz-icon-button:hover,
.theme-button:hover,
.menu-button:hover,
.nav-icon:hover,
.gn-theme-btn:hover,
.gn-search-btn:hover,
.gn-catalog-mobile:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }

.qz-icon-button:active,
.theme-button:active,
.menu-button:active,
.nav-icon:active,
.gn-theme-btn:active,
.gn-search-btn:active,
.gn-catalog-mobile:active { transform: scale(.96); }

.qz-icon-button svg,
.theme-button svg,
.menu-button svg,
.nav-icon svg,
.gn-theme-btn svg,
.gn-search-btn svg,
.gn-catalog-mobile svg { width: 1.125rem; height: 1.125rem; }

.theme-button svg,
.gn-theme-btn svg { grid-area: 1 / 1; transition: opacity var(--qz-duration) var(--qz-ease-out), transform var(--qz-duration) var(--qz-ease-out); }
.theme-button .theme-sun,
.gn-theme-btn .theme-sun { opacity: 0; transform: rotate(-28deg) scale(.76); }
html.dark .theme-button .theme-moon,
html[data-theme="dark"] .theme-button .theme-moon,
html.dark .gn-theme-btn .theme-moon,
html[data-theme="dark"] .gn-theme-btn .theme-moon { opacity: 0; transform: rotate(28deg) scale(.76); }
html.dark .theme-button .theme-sun,
html[data-theme="dark"] .theme-button .theme-sun,
html.dark .gn-theme-btn .theme-sun,
html[data-theme="dark"] .gn-theme-btn .theme-sun { opacity: 1; transform: none; }

.qz-mobile-menu,
.mobile-menu {
  position: fixed;
  z-index: var(--qz-layer-menu);
  top: calc(var(--qz-nav-height) + .75rem);
  right: var(--qz-gutter);
  width: min(22rem, calc(100vw - (2 * var(--qz-gutter))));
  padding: var(--qz-space-2);
  border: var(--qz-stroke) solid var(--qz-line);
  border-radius: var(--qz-radius-surface);
  background: var(--qz-surface);
  box-shadow: var(--qz-shadow-menu);
}

.qz-mobile-menu[hidden],
.mobile-menu[hidden] { display: none; }

.qz-mobile-menu > :where(a, button),
.mobile-menu > :where(a, button) {
  display: flex;
  width: 100%;
  min-height: 3rem;
  padding-inline: var(--qz-space-4);
  align-items: center;
  justify-content: space-between;
  border: 0;
  border-radius: var(--qz-radius-control);
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
  font-size: var(--qz-font-size-14);
  font-weight:600;
  text-align: left;
}

.qz-mobile-menu > :where(a, button):hover,
.mobile-menu > :where(a, button):hover,
.qz-mobile-menu > [aria-current="page"],
.mobile-menu > [aria-current="page"] { background: var(--qz-surface-muted); color: var(--qz-accent); }

/* QZ leaf-coordinate header. This is the only owner of qz-header overlays. */
.qz-header {
  position: sticky;
  box-sizing: border-box;
  z-index: var(--qz-layer-nav);
  top: 0;
  height: var(--qz-header-height);
  border-bottom: var(--qz-stroke) solid var(--qz-line);
  background: color-mix(in srgb, var(--qz-canvas) 96%, transparent);
  -webkit-backdrop-filter: saturate(120%) blur(12px);
  backdrop-filter: saturate(120%) blur(12px);
  color: var(--qz-ink);
  font-family: var(--qz-font-sans);
}

.qz-header *,
.qz-header *::before,
.qz-header *::after,
.qz-category-panel *,
.qz-mobile-menu *,
.qz-command-overlay * { box-sizing: border-box; }

.qz-header a,
.qz-mobile-menu a,
.qz-command-overlay a { color: inherit; text-decoration: none; }

.qz-header button,
.qz-mobile-menu button,
.qz-command-overlay button,
.qz-command-overlay input { font: inherit; }

.qz-header-inner {
  display: flex;
  width: min(100% - 3rem, var(--qz-container));
  height: 100%;
  margin-inline: auto;
  align-items: center;
  gap: 1.75rem;
}

.qz-header-brand {
  display: inline-flex;
  min-width: max-content;
  min-height: 2.75rem;
  align-items: center;
  gap: .625rem;
  border-radius: var(--qz-radius-control);
  line-height: 1.05;
}

.qz-header-leaf {
  width: 1.75rem;
  height: 1.75rem;
  flex: 0 0 auto;
  color: var(--qz-accent);
  transition: transform var(--qz-duration-fast) var(--qz-ease-out);
}

.qz-header-leaf-nodes { opacity: .76; transition: opacity var(--qz-duration-fast) ease; }
.qz-header-brand:hover .qz-header-leaf { transform: translateY(-1px); }
.qz-header-brand:hover .qz-header-leaf-nodes { opacity: 1; }
.qz-header-brand:active .qz-header-leaf { transform: scale(.97); transition-duration: 80ms; }

.qz-header-brand-copy { display: grid; gap: .125rem; }
.qz-header-brand-copy strong { font-size: var(--qz-font-size-16); font-weight:600; letter-spacing: -.01em; }
.qz-header-brand-copy small { color: var(--qz-ink-tertiary); font-size:var(--qz-font-size-14); font-weight:600; letter-spacing: .04em; }

.qz-current-label {
  display: none;
  min-width: 0;
  overflow: hidden;
  color: var(--qz-ink-secondary);
  font-size: var(--qz-font-size-14);
  font-weight:600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qz-primary-nav {
  display: flex;
  align-self: stretch;
  align-items: center;
  gap: .25rem;
}

.qz-find-module {
  display: inline-flex;
  align-items: center;
  border-radius: .5rem;
}

.qz-find-module .qz-module-link { border-radius: .5rem 0 0 .5rem; }
.qz-category-disclosure,
.qz-mobile-category-toggle {
  display: inline-grid;
  width: 2.75rem;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: 0 .5rem .5rem 0;
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
}
.qz-category-disclosure:hover,
.qz-mobile-category-toggle:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-category-disclosure svg,
.qz-mobile-category-toggle svg { width: .875rem; height: .875rem; transition: transform 180ms var(--qz-ease-out); }
.qz-category-disclosure[aria-expanded="true"] svg,
.qz-mobile-category-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }

.qz-module-link {
  position: relative;
  display: inline-flex;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding-inline: .625rem;
  align-items: center;
  justify-content: center;
  gap: .375rem;
  border: 0;
  border-radius: .5rem;
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
  font-size:var(--qz-font-size-14);
  white-space: nowrap;
  transition: background-color var(--qz-duration-fast) ease, color var(--qz-duration-fast) ease, transform 80ms ease;
}

.qz-module-link > svg { width: .875rem; height: .875rem; }
.qz-module-link > svg:last-child { width: .75rem; height: .75rem; transition: transform 180ms var(--qz-ease-out); }
.qz-module-link:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-module-link:active { transform: translateY(1px); }
.qz-module-link[aria-expanded="true"] { background: var(--qz-accent-soft); color: var(--qz-accent); }
.qz-module-link[aria-expanded="true"] > svg:last-child { transform: rotate(180deg); }
.qz-module-link[aria-current="page"] { color: var(--qz-ink); font-weight:600; }
.qz-module-link[aria-current="page"]::after {
  position: absolute;
  bottom: -1px;
  left: 50%;
  width: 1.375rem;
  height: 2px;
  border-radius: 1px;
  background: var(--qz-accent);
  content: "";
  transform: translateX(-50%);
}

.qz-recommend { position: relative; }
.qz-recommend > summary { list-style: none; }
.qz-recommend > summary::-webkit-details-marker { display: none; }
.qz-recommend[open] > summary { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-recommend[open] > summary > svg { transform: rotate(180deg); }
.qz-recommend-menu {
  position: absolute;
  z-index: var(--qz-layer-menu);
  top: calc(100% - .25rem);
  right: 0;
  display: grid;
  width: 16rem;
  gap: .125rem;
  padding: .45rem;
  border: var(--qz-stroke) solid var(--qz-line);
  border-radius: var(--qz-radius-surface);
  background: var(--qz-surface);
  box-shadow: var(--qz-shadow-menu);
}
.qz-recommend-link { display: grid; gap: .1rem; padding: .7rem .75rem; border-radius: .5rem; }
.qz-recommend-link:hover { background: var(--qz-surface-muted); }
.qz-recommend-link strong { color: var(--qz-ink); font-size:var(--qz-font-size-14); font-weight:600; }
.qz-recommend-link span { color: var(--qz-ink-tertiary); font-size:var(--qz-font-size-14); line-height: 1.45; }

.qz-header-actions { display: flex; margin-left: auto; align-items: center; gap: .125rem; }
.qz-header-action,
.qz-command-close {
  position: relative;
  display: inline-grid;
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 auto;
  padding: 0;
  place-items: center;
  border: 0;
  border-radius: var(--qz-radius-control);
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
  transition: background-color var(--qz-duration-fast) ease, color var(--qz-duration-fast) ease, transform 80ms ease;
}

.qz-header-action:hover,
.qz-command-close:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-header-action:active,
.qz-command-close:active { transform: translateY(1px); }
.qz-header-action > svg,
.qz-header-action > span > svg,
.qz-command-close svg { width: 1.125rem; height: 1.125rem; }

.qz-command-trigger { display: inline-flex; width: 4.375rem; gap: .5rem; }
.qz-command-trigger kbd { border: 0; background: transparent; color: var(--qz-ink-tertiary); font-family: inherit; font-size:var(--qz-font-size-14); }
.qz-theme-action > span { display: grid; grid-area: 1 / 1; place-items: center; transition: opacity 180ms ease, transform 180ms var(--qz-ease-out); }
.qz-theme-action .theme-sun { opacity: 0; transform: scale(.76); }
html.dark .qz-theme-action .theme-moon,
html[data-theme="dark"] .qz-theme-action .theme-moon { opacity: 0; transform: scale(.76); }
html.dark .qz-theme-action .theme-sun,
html[data-theme="dark"] .qz-theme-action .theme-sun { opacity: 1; transform: none; }

.qz-favorite-badge {
  position: absolute;
  top: .1875rem;
  right: .125rem;
  display: grid;
  min-width: 1rem;
  height: 1rem;
  padding-inline: .1875rem;
  place-items: center;
  border: 2px solid var(--qz-canvas);
  border-radius: var(--qz-radius-pill);
  background: var(--qz-accent);
  color: #f8fbff;
  font-size:var(--qz-font-size-14);
  font-weight:600;
  line-height: 1;
}

.qz-favorite-badge[hidden] { display: none; }
.qz-mobile-trigger { display: none; }
.qz-mobile-close-icon { display: none; }
.qz-mobile-trigger[aria-expanded="true"] > svg:first-child { display: none; }
.qz-mobile-trigger[aria-expanded="true"] .qz-mobile-close-icon { display: grid; }

.qz-category-panel {
  position: absolute;
  z-index: var(--qz-layer-menu);
  top: 100%;
  right: 0;
  left: 0;
  border-bottom: var(--qz-stroke) solid var(--qz-line);
  border-radius: 0 0 var(--qz-radius-surface) var(--qz-radius-surface);
  background: var(--qz-surface);
  box-shadow: var(--qz-shadow-menu);
}

.qz-category-panel[hidden],
.qz-mobile-menu[hidden],
.qz-command-overlay[hidden],
.qz-mobile-category-list[hidden] { display: none; }

.qz-category-panel[data-state="open"] { animation: qz-panel-in 180ms var(--qz-ease-out) both; }
.qz-category-panel-inner { width: min(100% - 3rem, var(--qz-container)); margin-inline: auto; padding: 1rem 0 1.25rem; }
.qz-category-panel-head { display: flex; min-height: 2.75rem; align-items: center; justify-content: space-between; gap: 1rem; font-size: var(--qz-font-size-14); }
.qz-category-panel-head strong { font-weight:600; }
.qz-category-panel-head a { min-height: 2.75rem; display: inline-flex; align-items: center; color: var(--qz-accent); font-size:var(--qz-font-size-14); font-weight:600; }
.qz-category-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .125rem 1rem; }
.qz-category-link,
.qz-mobile-category-link {
  display: flex;
  min-width: 0;
  min-height: 2.75rem;
  padding-inline: .625rem;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  border-radius: .5rem;
  color: var(--qz-ink-secondary);
  font-size:var(--qz-font-size-14);
}
.qz-category-link:hover,
.qz-mobile-category-link:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-category-link[aria-current="page"],
.qz-mobile-category-link[aria-current="page"] { background: var(--qz-accent-soft); color: var(--qz-accent); font-weight:600; }
.qz-category-count { flex: 0 0 auto; color: var(--qz-ink-tertiary); font-variant-numeric: tabular-nums; }
.qz-category-all { display: inline-flex; min-height: 2.75rem; margin-top: .5rem; align-items: center; color: var(--qz-accent); font-size:var(--qz-font-size-14); font-weight:600; }

.qz-mobile-menu {
  position: fixed;
  z-index: var(--qz-layer-menu);
  top: calc(var(--qz-header-height) + .5rem);
  right: 1.25rem;
  width: min(35rem, calc(100vw - 2.5rem));
  max-height: calc(100dvh - var(--qz-header-height) - 1.25rem);
  overflow: auto;
  padding: .5rem;
  border: var(--qz-stroke) solid var(--qz-line);
  border-radius: var(--qz-radius-surface);
  background: var(--qz-surface);
  box-shadow: var(--qz-shadow-menu);
  color: var(--qz-ink);
  font-family: var(--qz-font-sans);
}

.qz-mobile-menu[data-state="open"] { animation: qz-panel-in 180ms var(--qz-ease-out) both; }
.qz-mobile-modules { display: grid; gap: .125rem; }
.qz-mobile-support { border-top: var(--qz-stroke) solid var(--qz-line); margin-top: .25rem; padding-top: .25rem; }
.qz-mobile-support > summary {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .45rem .75rem;
  border-radius: var(--qz-radius-control);
  color: var(--qz-ink-secondary);
  cursor: pointer;
  list-style: none;
}
.qz-mobile-support > summary::-webkit-details-marker { display: none; }
.qz-mobile-support > summary:hover { background: var(--qz-surface-muted); }
.qz-mobile-support > summary span { display: grid; gap: .05rem; }
.qz-mobile-support > summary strong { color: var(--qz-ink); font-size:var(--qz-font-size-14); font-weight:600; }
.qz-mobile-support > summary small { color: var(--qz-ink-tertiary); font-size:var(--qz-font-size-14); }
.qz-mobile-support > summary svg { width: .875rem; height: .875rem; transition: transform 180ms var(--qz-ease-out); }
.qz-mobile-support[open] > summary svg { transform: rotate(180deg); }
.qz-mobile-support-links { display: grid; gap: .125rem; padding: .125rem 0 .25rem .65rem; }
.qz-mobile-support-links a { display: flex; min-height: 2.75rem; align-items: center; padding: 0 .75rem; border-radius: .5rem; color: var(--qz-ink-secondary); font-size:var(--qz-font-size-14); }
.qz-mobile-support-links a:hover { background: var(--qz-surface-muted); color: var(--qz-accent); }
.qz-mobile-find-module { display: grid; grid-template-columns: minmax(0, 1fr) 2.75rem; align-items: center; border-radius: .5rem; }
.qz-mobile-find-module[data-current="true"] { background: var(--qz-accent-soft); }
.qz-mobile-find-module[data-current="true"] .qz-mobile-module { color: var(--qz-accent); }
.qz-mobile-module {
  display: flex;
  width: 100%;
  min-height: 2.75rem;
  padding-inline: .875rem;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  border: 0;
  border-radius: .5rem;
  background: transparent;
  color: var(--qz-ink-secondary);
  cursor: pointer;
  font-size: var(--qz-font-size-14);
  font-weight:600;
  text-align: left;
}
.qz-mobile-module > span { display: inline-flex; align-items: center; gap: .5rem; }
.qz-mobile-module svg { width: .875rem; height: .875rem; }
.qz-mobile-module > svg { transition: transform 180ms var(--qz-ease-out); }
.qz-mobile-module:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
.qz-mobile-module[data-current="true"] { color: var(--qz-accent); }
.qz-mobile-module[aria-expanded="true"] { background: var(--qz-accent-soft); color: var(--qz-accent); }
.qz-mobile-module[aria-expanded="true"] > svg { transform: rotate(180deg); }
.qz-mobile-category-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: .375rem; padding-top: .375rem; border-top: var(--qz-stroke) solid var(--qz-line); }

.qz-command-overlay {
  position: fixed;
  z-index: var(--qz-layer-dialog);
  inset: 0;
  overflow: auto;
  padding: clamp(1rem, 5vw, 4rem) 1rem 2rem;
  background: var(--qz-canvas);
  color: var(--qz-ink);
  font-family: var(--qz-font-sans);
}
.qz-command-panel {
  width: min(52rem, calc(100vw - 2rem));
  max-height: none;
  margin-inline: auto;
  overflow: visible;
  padding: clamp(1rem, 3vw, 2rem);
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  animation: qz-panel-in 180ms var(--qz-ease-out) both;
}
.qz-command-head { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.qz-command-head h2 { margin: 0; font-size: var(--qz-font-size-20); font-weight: 700; line-height: 1.25; }
.qz-command-head p { margin: .125rem 0 0; color: var(--qz-ink-tertiary); font-size: var(--qz-font-size-14); }
.qz-command-field { display: flex; min-height: 2.75rem; margin-top: 1rem; padding-inline: .75rem; align-items: center; gap: .625rem; border: var(--qz-stroke) solid var(--qz-line-strong); border-radius: var(--qz-radius-control); background: var(--qz-canvas); transition: border-color var(--qz-duration-fast) ease, box-shadow var(--qz-duration-fast) ease, background-color var(--qz-duration-fast) ease; }
.qz-command-field:focus-within { border-color: color-mix(in srgb, var(--qz-accent) 52%, var(--qz-line-strong)); background: var(--qz-surface); box-shadow: 0 8px 24px rgba(40, 47, 58, .08), inset 0 0 0 .5px color-mix(in srgb, var(--qz-accent) 22%, transparent); }
.qz-command-field > svg { width: 1.125rem; height: 1.125rem; flex: 0 0 auto; color: var(--qz-ink-tertiary); }
.qz-command-field input { width: 100%; min-width: 0; height: 2.75rem; padding: 0; border: 0; outline: 0; background: transparent; color: var(--qz-ink); font-size: var(--qz-font-size-14); }
.qz-command-field input:focus-visible { outline: 0; }
.qz-command-field input::placeholder { color: var(--qz-ink-tertiary); }
.qz-command-status { min-height: 2.25rem; padding: .625rem .25rem .25rem; color: var(--qz-ink-tertiary); font-size: var(--qz-font-size-14); }
.qz-command-results { display: grid; gap: .5rem; }
.qz-command-group { display: grid; gap: .125rem; }
.qz-command-group + .qz-command-group { padding-top: .5rem; border-top: var(--qz-stroke) solid var(--qz-line); }
.qz-command-group-title { margin: 0; padding: .125rem .625rem; color: var(--qz-ink-tertiary); font-size: var(--qz-font-size-14); font-weight:600; letter-spacing: .04em; }
.qz-command-result { display: grid; min-height: 3.5rem; padding: .5rem .625rem; grid-template-columns: 2rem minmax(0, 1fr); align-items: center; gap: .75rem; border-radius: .5rem; }
.qz-command-result:hover { background: var(--qz-surface-muted); }
.qz-command-result-mark { display: grid; width: 2rem; height: 2rem; place-items: center; border-radius: .5rem; background: var(--qz-accent-soft); color: var(--qz-accent); font-size: var(--qz-font-size-14); font-weight:600; }
.qz-command-result-copy { min-width: 0; }
.qz-command-result-copy strong,
.qz-command-result-copy span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qz-command-result-copy strong { font-size: var(--qz-font-size-14); font-weight:600; }
.qz-command-result-copy span { color: var(--qz-ink-tertiary); font-size: var(--qz-font-size-14); }
.qz-command-all { display: flex; min-height: 2.75rem; margin-top: .5rem; align-items: center; justify-content: center; border-top: var(--qz-stroke) solid var(--qz-line); color: var(--qz-accent); font-size: var(--qz-font-size-14); font-weight:600; }

@keyframes qz-panel-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* Buttons and controls */
.qz-button {
  display: inline-flex;
  min-height: var(--qz-control);
  padding: 0 1rem;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: var(--qz-stroke) solid transparent;
  border-radius: var(--qz-radius-control);
  background: var(--qz-surface-muted);
  color: var(--qz-ink);
  cursor: pointer;
  font-size: var(--qz-font-size-14);
  font-weight:600;
  line-height: 1;
  white-space: nowrap;
  transition: background-color var(--qz-duration-fast) ease, border-color var(--qz-duration-fast) ease, color var(--qz-duration-fast) ease, transform var(--qz-duration-fast) ease;
}

.qz-button:hover { background: var(--qz-surface-strong); }
.qz-button:active { transform: scale(.98); }
.qz-button.is-primary { background: var(--qz-accent); color: #f8fbff; }
.qz-button.is-primary:hover { background: var(--qz-accent-hover); }
html.dark .qz-button.is-primary, html[data-theme="dark"] .qz-button.is-primary { color: #111318; }
.qz-button.is-quiet { border-color: var(--qz-line); background: var(--qz-surface); }
.qz-button:disabled,
.qz-button[aria-disabled="true"] { opacity: .46; cursor: not-allowed; transform: none; }

.qz-field {
  width: 100%;
  min-height: var(--qz-control);
  padding: .625rem .875rem;
  border: var(--qz-stroke) solid var(--qz-line);
  border-radius: var(--qz-radius-control);
  outline: 0;
  background: var(--qz-surface);
  color: var(--qz-ink);
  transition: border-color var(--qz-duration-fast) ease, box-shadow var(--qz-duration-fast) ease;
}

.qz-field::placeholder { color: var(--qz-ink-tertiary); }
.qz-field:focus { border-color: color-mix(in srgb, var(--qz-accent) 52%, var(--qz-line-strong)); box-shadow: 0 7px 20px rgba(40, 47, 58, .07), inset 0 0 0 .5px color-mix(in srgb, var(--qz-accent) 22%, transparent); }

.qz-chip {
  display: inline-flex;
  min-height: 2.25rem;
  padding-inline: .875rem;
  align-items: center;
  justify-content: center;
  border: var(--qz-stroke) solid transparent;
  border-radius: var(--qz-radius-pill);
  background: var(--qz-surface-muted);
  color: var(--qz-ink-secondary);
  cursor: pointer;
  font-size: var(--qz-font-size-14);
  font-weight:600;
  white-space: nowrap;
}

.qz-chip:hover { color: var(--qz-ink); }
.qz-chip[aria-pressed="true"],
.qz-chip.is-active { border-color: color-mix(in srgb, var(--qz-accent) 30%, transparent); background: var(--qz-accent-soft); color: var(--qz-accent); }

/* Surfaces. Use these only when the boundary explains hierarchy. */
.qz-surface {
  border: var(--qz-stroke) solid var(--qz-line);
  border-radius: var(--qz-radius-surface);
  background: var(--qz-surface);
}

.qz-list { margin: 0; padding: 0; list-style: none; }
.qz-list > * { padding-block: var(--qz-space-4); }
.qz-list > * + * { border-top: var(--qz-stroke) solid var(--qz-line); }

.qz-toolbar {
  display: flex;
  min-height: var(--qz-control);
  align-items: center;
  justify-content: space-between;
  gap: var(--qz-space-3);
}

.qz-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--qz-space-3); }
.qz-stack { display: grid; gap: var(--qz-space-6); }
.qz-muted { color: var(--qz-ink-secondary); }
.qz-hairline { border: 0; border-top: var(--qz-stroke) solid var(--qz-line); }
.qz-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 900px) {
  :root { --qz-nav-height: 3.5rem; --qz-header-height: 3.75rem; --qz-gutter: 1rem; }

  .qz-layout { grid-template-columns: minmax(0, 1fr); gap: var(--qz-space-12); }
  .qz-stage { min-height: auto; padding-block: var(--qz-space-16); }
  .qz-section { padding-block: var(--qz-space-16); }
  .qz-hero { padding-block: var(--qz-space-16); }
  .qz-section-head h1,
  .qz-hero h1 { max-width: 13ch; }

  .qz-nav-links,
  .nav-links,
  .gn-links { display: none; }

  .qz-nav-actions,
  .nav-actions,
  .gn-r { margin-left: auto; }

  .qz-header-inner { width: calc(100% - 2.5rem); gap: 1.25rem; }
  .qz-primary-nav { display: none; }
  .qz-current-label { display: flex; flex: 1 1 auto; align-items: center; gap: .625rem; font-weight:600; }
  .qz-header-actions { flex: 0 0 auto; }
  .qz-current-label::before { width: 1px; height: 1rem; flex: 0 0 auto; background: var(--qz-line-strong); content: ""; }
  .qz-command-trigger { width: 2.75rem; min-width: 2.75rem; padding: 0; }
  .qz-command-trigger kbd { display: none; }
  .qz-command-trigger .qz-action-label { display: none; }
  .qz-mobile-trigger { display: inline-grid; }
  .qz-category-panel { display: none !important; }

  .menu-button { display: grid; }
  .gn-catalog-mobile { display: grid; }
  .qz-toolbar { align-items: stretch; flex-direction: column; }
  .qz-hero-actions > * { flex: 1 1 auto; }
}

@media (min-width: 901px) {
  .menu-button,
  #menuToggle,
  [data-qz-menu-toggle] { display: none; }
  .qz-mobile-menu,
  .mobile-menu { display: none !important; }
  .qz-mobile-trigger { display: none; }
}

@media (min-width: 901px) and (max-width: 1200px) {
  .qz-module-link { padding-inline: .625rem; }
  .qz-header-brand-copy small { display: none; }
}

@media (max-width: 480px) {
  .qz-brand small,
  .brand small { display: none; }
  .qz-brand,
  .brand { font-size: var(--qz-font-size-14); }
  .qz-brand-mark,
  .brand .leaf,
  .gn .leaf { width: 1.5rem; height: 1.5rem; }
  .qz-header-inner { width: calc(100% - 1.5rem); gap: .25rem; }
  .qz-header-leaf { width: 1.5rem; height: 1.5rem; }
  .qz-header-brand { gap: .375rem; }
  .qz-header-brand-copy small { display: none; }
  .qz-header-brand-copy strong { font-size: var(--qz-font-size-14); }
  .qz-current-label { gap: .375rem; }
  .qz-favorites-action { display: none; }
  .qz-theme-action { display: none; }
  .qz-mobile-menu { right: .75rem; width: calc(100vw - 1.5rem); }
  .qz-mobile-category-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 360px) {
  .qz-theme-action { display: none; }
  .qz-current-label { display: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .qz-header { background: var(--qz-canvas); -webkit-backdrop-filter: none; backdrop-filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after { scroll-behavior: auto !important; animation: none !important; transition-duration: 160ms !important; transition-delay: 0ms !important; }
  .qz-category-panel,
  .qz-mobile-menu,
  .qz-command-panel,
  .qz-header-leaf,
  .qz-module-link,
  .qz-header-action,
  .qz-command-close,
  .qz-button { transform: none !important; }
}

@media (prefers-contrast: more) {
  :root { --qz-line: rgba(23, 25, 29, .28); --qz-line-strong: rgba(23, 25, 29, .46); }
  html.dark,
  html[data-theme="dark"] { --qz-line: rgba(241, 243, 246, .3); --qz-line-strong: rgba(241, 243, 246, .5); }
}


.qz-lang-action { font-size:var(--qz-font-size-14); font-weight:600; letter-spacing: .02em; min-width: 2.75rem; }
.qz-lang-action:hover { background: var(--qz-surface-muted); color: var(--qz-ink); }
@media (max-width: 900px) { .qz-lang-action { font-size:var(--qz-font-size-14); } }
/* Visible favorites label is shared by every header consumer. */
.qz-header .qz-favorites-action { display:flex; flex-direction:row; width:auto; min-width:2.75rem; padding-inline:8px; gap:6px; }
.qz-favorites-text { font-size:var(--qz-font-size-14); white-space:nowrap; }
@media(max-width:1100px){.qz-favorites-text{display:none;}}
@media(max-width:480px){.qz-header .qz-favorites-action{display:none;}}

/* Shared typography contract: one UI family, readable labels and stable controls. */
body :where(button,input,select,textarea) { font-family:var(--qz-font-sans); }
body :where(button,select) { line-height:1.5; }
.qz-header :is(.qz-module-link,.qz-header-action,.qz-category-link,.qz-mobile-module) { font-size:var(--qz-font-size-14); font-weight:400; letter-spacing:0; }
.qz-header [aria-current="page"],.qz-header-brand-copy strong { font-weight:600; }
.qz-header .qz-module-link { padding-inline:12px; }
.qz-header .qz-category-count { font-size:var(--qz-font-size-14); }
.qz-header .qz-header-brand-copy strong { font-size:var(--qz-font-size-16); }

/* Learning routes are visible together without duplicating the main navigation. */
.qz-learning-nav {display:flex;align-items:center;gap:8px;margin:0 0 28px;padding-bottom:12px;border-bottom:1px solid var(--qz-line)}
.qz-learning-nav a {display:inline-flex;align-items:center;min-height:44px;padding:8px 14px;color:var(--qz-ink-secondary);border-radius:8px;font-size:14px;text-decoration:none}
.qz-learning-nav a:hover {color:var(--qz-accent);background:var(--qz-accent-soft)}
.qz-learning-nav a[aria-current="page"] {color:var(--qz-accent);background:var(--qz-accent-soft);font-weight:600}

/* Keep the complete module navigation on one line in compact desktop windows. */
@media (min-width:901px) and (max-width:1200px){.qz-header-inner{gap:1rem}.qz-header-brand{flex:0 0 auto;white-space:nowrap}}
/* Longer English labels use the existing menu in compact desktop windows. */
@media (min-width:901px) and (max-width:1200px){
  html[lang="en"] .qz-primary-nav{display:none}
  html[lang="en"] .qz-mobile-trigger{display:inline-grid}
  html[lang="en"] .qz-mobile-menu:not([hidden]){display:block!important}
  html[lang="en"] .qz-current-label{display:flex;flex:1 1 auto;align-items:center;font-weight:600}
  html[lang="en"] .qz-category-panel{display:none!important}
}


/* Preserved stylesheet: assets/css/toolbox-ui.css */
/* Toolbox-specific layout. Shared controls also serve the existing workspaces.
   Keep algorithms, IDs, favorites storage and old /tools/#key links unchanged. */
:root { --wt-sidebar: 208px; --wt-gap: 24px; --wt-field-gap: 16px; --qz-font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif; }
.toolbox-hero { max-width:1240px; padding:40px 24px 28px; }
.toolbox-hero .hero-title { font-size:clamp(28px,3vw,36px); line-height:1.3; letter-spacing:-.025em; }
.toolbox-hero .hero-sub { margin-top:12px; font-size:16px; line-height:1.7; }
.toolbox-hero .hero-sub b { margin-right:4px; }
.toolbox-hero .hero-search { max-width:640px; height:56px; margin-top:20px; background:var(--card); border-color:var(--border); }
.toolbox-hero .hero-search:focus-within { border-color:var(--accent); outline:2px solid var(--accent-soft); }
.toolbox-hero .toolbox-privacy { margin:12px 0 0; font-size:14px; line-height:1.65; color:var(--text-secondary); }
.toolbox-catalog { max-width:1240px; display:grid; grid-template-columns:var(--wt-sidebar) minmax(0,1fr); gap:var(--wt-gap); align-items:start; padding-bottom:64px; }
.toolbox-categories { position:sticky; top:calc(var(--qz-header-height,60px) + 20px); min-width:0; border:1px solid var(--border-light); border-radius:14px; background:var(--card); padding:12px; }
.toolbox-categories summary { display:none; }
.toolbox-categories .category-heading { margin:4px 10px 12px; font-size:14px; line-height:1.5; color:var(--text-secondary); font-weight:600; }
.toolbox-categories .cat-tabs-shell { position:static; display:block!important; background:transparent; }
.toolbox-categories .cat-tabs { display:flex; flex-direction:column; overflow:visible; padding:0; gap:4px; background:transparent; }
.toolbox-categories .cat-tabs button { width:100%; justify-content:space-between; gap:8px; padding:11px 12px; min-height:44px; line-height:1.5; text-align:left; white-space:normal; }
.toolbox-categories .cat-tabs .tab-count { font-size:12px; font-variant-numeric:tabular-nums; line-height:1.5; padding:1px 7px; border-radius:6px; background:var(--bg-secondary); color:var(--text-secondary); }
.toolbox-categories .cat-tabs button.on .tab-count { background:var(--card); color:var(--accent); }
.toolbox-categories .cat-tabs-cue { display:none!important; }
.toolbox-results { min-width:0; }
.toolbox-results-head { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:8px 16px; margin-bottom:16px; min-height:44px; }
.toolbox-results-head h2 { font-size:20px; font-weight:600; line-height:1.5; margin:0; }
.toolbox-result-status { margin:3px 0 0; font-size:14px; line-height:1.6; color:var(--text-secondary); }
.toolbox-results .mini-grid { grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
.toolbox-results .mini-card { border-color:var(--border); background:var(--card); }
.toolbox-results .mini-open { grid-template-columns:40px minmax(0,1fr); grid-template-rows:auto 1fr auto; gap:12px; padding:20px; min-height:184px; }
.toolbox-results .mini-name { font-size:16px; line-height:1.5; padding-right:18px; }
.toolbox-results .mini-desc { grid-column:1/-1; grid-row:2; font-size:14px; line-height:1.7; -webkit-line-clamp:2; overflow-wrap:anywhere; }
.toolbox-results .mini-open::after { content:'打开工具 →'; grid-column:1/-1; grid-row:3; color:var(--accent); font-size:14px; line-height:1.5; }
html[lang^='en'] .toolbox-results .mini-open::after { content:'Open tool →'; }
.toolbox-results .mini-star { top:6px; right:6px; }
.toolbox-results .mini-card:hover { transform:none; border-color:var(--accent); box-shadow:none; }
.toolbox-categories :focus-visible,.toolbox-results :focus-visible { outline:2px solid var(--qz-focus,var(--accent)); outline-offset:3px; }
.toolbox-results .mini-open:focus-visible { outline-offset:-3px; }
.toolbox-results .mini-empty { text-align:left; padding:32px 24px; border:1px dashed var(--border); border-radius:14px; background:var(--card); line-height:1.8; }
.toolbox-reset[hidden] { display:none; }
/* Working areas: comfortable spacing without moving or replacing tool fields. */
:is(.tool-modal-body,.workspace-shell) .tool-card { overflow-wrap:anywhere; }
:is(.tool-modal-body,.workspace-shell) .tool-head { margin-bottom:24px; }
:is(.tool-modal-body,.workspace-shell) .tool-input { font-size:16px; line-height:1.65; padding:12px 14px; }
:is(.tool-modal-body,.workspace-shell) .tool-select { font-size:14px; min-height:44px; }
:is(.tool-modal-body,.workspace-shell) .tool-card > label { display:block; margin:16px 0 8px; font-size:14px; font-weight:500; line-height:1.65; }
:is(.tool-modal-body,.workspace-shell) .field-label { gap:8px; }
:is(.tool-modal-body,.workspace-shell) .tool-grid2 { gap:16px; margin-top:16px; margin-bottom:16px; grid-template-columns:repeat(2,minmax(0,1fr)); }
:is(.tool-modal-body,.workspace-shell) .tool-grid2 > * { min-width:0; }
:is(.tool-modal-body,.workspace-shell) .tool-actions { gap:8px; margin-top:20px; margin-bottom:16px; padding-top:16px; border-top:1px solid var(--border-light); }
:is(.tool-modal-body,.workspace-shell) .btn { min-height:44px; padding:10px 16px; border:1px solid var(--border); border-radius:10px; font-size:14px; font-weight:600; line-height:1.5; text-decoration:none; }
:is(.tool-modal-body,.workspace-shell) .btn.primary { border-color:var(--accent); }
:is(.tool-modal-body,.workspace-shell) .btn.ghost { background:var(--card); color:var(--text-secondary); }
:is(.tool-modal-body,.workspace-shell) .btn.ghost:hover { background:var(--accent-soft); color:var(--accent); border-color:var(--accent); }
:is(.tool-modal-body,.workspace-shell) .tool-output { padding:16px; border:1px solid var(--border); font-size:14px; line-height:1.75; word-break:normal; overflow-wrap:anywhere; }
:is(.tool-modal-body,.workspace-shell) textarea[readonly] { background:var(--bg-secondary); }
:is(.tool-modal-body,.workspace-shell) .aim-note { margin-top:12px; font-size:14px; line-height:1.75; color:var(--text-secondary); }
.tool-modal-panel { max-width:820px; padding:24px 28px 28px; }
.tool-modal-head { margin-bottom:20px; }
.tool-modal-head h3 { font-size:20px; font-weight:600; }
.tool-modal-body .tool-head { align-items:start; }
.tool-modal-body .tool-desc { padding-top:4px; line-height:1.75; }
.workspace-shell { max-width:1040px; }
.workspace-shell .tool-card { padding:28px; }
.workspace-shell .workspace-bar .btn { min-height:44px; }
@media(min-width:1000px) { .toolbox-categories { max-height:calc(100dvh - var(--qz-header-height,60px) - 40px); overflow-y:auto; scrollbar-width:thin; } .toolbox-categories > :not(summary) { display:block!important; } }
@media(max-width:1199px) and (min-width:1000px) { .toolbox-results .mini-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media(max-width:999px) {
 .toolbox-catalog { grid-template-columns:minmax(0,1fr); gap:20px; }
 .toolbox-categories { position:static; padding:0; }
 .toolbox-categories summary { display:flex; align-items:center; justify-content:space-between; gap:12px; min-height:52px; padding:12px 16px; cursor:pointer; list-style:none; font-size:14px; font-weight:600; }
 .toolbox-categories summary::-webkit-details-marker { display:none; }
 .toolbox-categories summary svg { flex:none; width:20px; height:20px; transition:transform 120ms; }
 .toolbox-categories[open] summary svg { transform:rotate(180deg); }
 .toolbox-categories .category-heading { display:none; }
 .toolbox-categories .cat-tabs-shell { padding:0 8px 8px; }
 .toolbox-categories .cat-tabs { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:4px; }
 .toolbox-results .mini-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media(max-width:599px) {
 .toolbox-hero { padding:24px 16px; }
 .toolbox-hero .hero-title { font-size:28px; white-space:normal; }
 .toolbox-hero .hero-sub { font-size:14px; margin-top:8px; }
 .toolbox-hero .hero-search { height:52px; margin-top:16px; }
 .toolbox-hero .hero-search input { font-size:16px; }
 .toolbox-hero .hero-search kbd { display:none; }
 .toolbox-hero .toolbox-privacy { text-align:left; }
 .toolbox-catalog { padding:0 16px 40px; gap:16px; }
 .toolbox-categories .cat-tabs { grid-template-columns:repeat(2,minmax(0,1fr)); }
 .toolbox-categories .cat-tabs button { padding:10px; }
 .toolbox-results-head { margin-bottom:12px; }
 .toolbox-results-head h2 { font-size:18px; }
 .toolbox-results .mini-grid { grid-template-columns:minmax(0,1fr); gap:12px; }
 .toolbox-results .mini-open { grid-template-columns:40px minmax(0,1fr); grid-template-rows:auto auto auto; min-height:152px; padding:16px; gap:10px 12px; }
 .toolbox-results .mini-open .mini-name { grid-column:2; grid-row:1; padding-right:20px; }
 .toolbox-results .mini-open .mini-desc { grid-column:1/-1; grid-row:2; }
 .tool-modal { padding:0; }
 .tool-modal-panel { min-height:100dvh; border-radius:0; padding:0 16px calc(24px + env(safe-area-inset-bottom)); }
 .tool-modal-head { margin:0 -16px 20px; padding:12px 16px; }
 :is(.tool-modal-body,.workspace-shell) .tool-grid2 { grid-template-columns:minmax(0,1fr); }
 :is(.tool-modal-body,.workspace-shell) .tool-actions .btn { flex:1 1 auto; }
 .workspace-shell .tool-card { padding:20px 16px; }
}
@media(prefers-reduced-motion:reduce) { .toolbox-catalog *,.toolbox-categories summary svg { animation:none!important; transition:none!important; } }

/* Real catalogue content replaces the old empty loading placeholder. */
html:not(.wt-ready) #mini-grid[data-startup-rendered] { min-height:0; }
#toolbox-startup[hidden],#toolbox-startup-retry[hidden] { display:none!important; }
.toolbox-startup { display:flex; align-items:center; flex-wrap:wrap; gap:4px 16px; margin-bottom:16px; color:var(--text-secondary); font-size:14px; line-height:1.6; }
.toolbox-startup a { display:inline-flex; align-items:center; min-height:44px; color:var(--accent); text-underline-offset:3px; }
.toolbox-startup a:focus-visible { outline:2px solid var(--qz-focus,var(--accent)); outline-offset:3px; }
#mini-grid[data-startup-rendered] .mini-star:disabled { opacity:.4; cursor:default; }


/* Preserved stylesheet: assets/css/usability-fixes.css */
/* Shared accessibility corrections; no new visual theme. */
:is(.skip-link,.guide-skip):not(:focus) { position:absolute; width:1px; height:1px; margin:-1px; padding:0; overflow:hidden; clip-path:inset(50%); white-space:nowrap; }
:is(.skip-link,.guide-skip):focus { position:fixed; top:8px; left:8px; z-index:10000; width:auto; height:auto; padding:12px 16px; background:var(--qz-surface,#fff); color:var(--qz-ink,#172033); border:2px solid var(--qz-accent,#2563eb); border-radius:8px; }
.wt-field-label { display:block; margin:12px 0 6px; font-size:14px; font-weight:500; line-height:1.6; color:var(--text-primary,var(--qz-ink,#172033)); }
.tool-row:has(>.wt-field-label) { flex-wrap:wrap; align-items:center; }
.tool-row>.wt-field-label { flex-basis:100%; margin-top:8px; }
.tool-grid2>.wt-field-label { grid-column:1/-1; }
.aic-row:has(>.wt-field-label) { display:grid; grid-template-columns:auto 110px auto minmax(0,1fr) 44px; gap:8px; align-items:start; }
.aic-row>.wt-field-label { margin:8px 0 0; }
.aic-row>.aic-content { min-width:0; width:100%; }
@media(max-width:600px) {
  .aic-row:has(>.wt-field-label) { grid-template-columns:minmax(0,1fr) 44px; gap:8px; }
  .aic-row>.wt-field-label { grid-column:1/-1; margin:0; }
  .aic-row>.wt-field-label:first-of-type { grid-row:1; }
  .aic-row>.aic-role { grid-column:1; grid-row:2; width:100%; }
  .aic-row>.aic-del { grid-column:2; grid-row:2; }
  .aic-row>.wt-field-label:nth-of-type(2) { grid-row:3; }
  .aic-row>.aic-content { grid-column:1/-1; grid-row:4; min-height:88px; }
}
:is(input,textarea,select,button,a):focus-visible { outline:2px solid var(--qz-accent,var(--accent,#2563eb)); outline-offset:3px; }
@media(prefers-reduced-motion:reduce) { .wt-field-label,.skip-link { transition:none; } }


/* Preserved stylesheet: assets/css/markdown-tables.css */
/* Table output inherits the existing toolbox's light and dark semantic tokens. */
.markdown-table-scroll { max-width:100%; overflow:auto; margin-block:1rem; scrollbar-color:var(--text-tertiary) var(--bg-secondary); }
.markdown-table-scroll:focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
.markdown-table-scroll table { border-collapse:collapse; min-width:100%; color:var(--text); font-variant-numeric:tabular-nums; }
.markdown-table-scroll th,.markdown-table-scroll td { border:1px solid var(--border); padding:.625rem .75rem; min-width:6rem; max-width:32rem; white-space:pre-wrap; overflow-wrap:anywhere; vertical-align:top; }
.markdown-table-scroll th { background:var(--bg-secondary); font-weight:600; }
.markdown-table-scroll .md-align-left { text-align:left; }
.markdown-table-scroll .md-align-center { text-align:center; }
.markdown-table-scroll .md-align-right { text-align:right; }


/* Preserved stylesheet: assets/css/text-diff.css */
[data-tool="diff"] .diff-grid label{display:flex;flex-direction:column;gap:.5rem;min-width:0;font-size:var(--qz-font-size-14)}
[data-tool="diff"] .diff-source{min-width:0}
[data-tool="diff"] .diff-file-label{margin-top:.75rem}
[data-tool="diff"] input[type="file"]{width:100%;min-width:0;min-height:44px;font:inherit;color:var(--text);padding:.5rem 0}
[data-tool="diff"] input[type="file"]::file-selector-button{min-height:44px;margin-right:.5rem;font:inherit;color:var(--text);background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);padding:.5rem .75rem;cursor:pointer}
[data-tool="diff"] .diff-note{font-size:var(--qz-font-size-14);line-height:1.75;color:var(--text-secondary);margin:.75rem 0;overflow-wrap:anywhere}
[data-tool="diff"] .tool-actions{flex-wrap:wrap;align-items:center}
[data-tool="diff"] .tool-actions label{display:flex;align-items:center;gap:.5rem}
[data-tool="diff"] button,[data-tool="diff"] select,[data-tool="diff"] summary{min-height:44px}
[data-tool="diff"] button:disabled{opacity:.5;cursor:default}
[data-tool="diff"] textarea{caret-color:var(--accent)}
[data-tool="diff"] ::selection{background:var(--accent-soft);color:var(--text)}
[data-tool="diff"] .diff-table-scroll{overflow:auto;max-height:32rem;border:1px solid var(--border-light);border-radius:var(--radius-sm);scrollbar-color:var(--text-secondary) var(--card);margin:1rem 0}
[data-tool="diff"] .diff-table{border-collapse:collapse;width:100%;min-width:40rem;font-size:var(--qz-font-size-14);font-variant-numeric:tabular-nums;line-height:1.75}
[data-tool="diff"] .diff-table caption{text-align:left;padding:.75rem;color:var(--text-secondary)}
[data-tool="diff"] .diff-table th,[data-tool="diff"] .diff-table td{text-align:left;vertical-align:top;padding:.6rem;border-bottom:1px solid var(--border-light)}
[data-tool="diff"] .diff-table th{background:var(--bg-secondary)}
[data-tool="diff"] .diff-table td:last-child{white-space:pre-wrap;overflow-wrap:anywhere;min-width:15rem;max-width:40rem}
[data-tool="diff"] .diff-table tr[data-kind="delete"] td:first-child{color:var(--qz-danger);font-weight:600}
[data-tool="diff"] .diff-table tr[data-kind="insert"] td:first-child{color:var(--accent);font-weight:600}
[data-tool="diff"] :focus-visible{outline:2px solid var(--qz-focus,var(--accent));outline-offset:3px}
[data-tool="diff"] details{margin:1rem 0}
[data-tool="diff"] summary{cursor:pointer;padding:.5rem 0}
[data-tool="diff"] #diff-manual{display:block;width:100%;margin:.5rem 0}
@media(max-width:560px){[data-tool="diff"] .diff-grid{grid-template-columns:minmax(0,1fr)}[data-tool="diff"] .tool-actions{gap:.5rem}[data-tool="diff"] .diff-table{min-width:36rem}}


/* Preserved stylesheet: assets/shared/clarity.css */
/* QZ Clarity. Single source for navigation, tools, reading and Studio.
   Quiet, Apple-inspired hierarchy; QZ brand and real controls stay intact.
   Load after legacy page CSS. Do not reduce consent, attribution or warnings. */
html:root {
  --qz-canvas:#f7f8fa; --qz-surface:#fff; --qz-surface-muted:#f0f2f5;
  --qz-surface-strong:#e5e5ea; --qz-ink:#282a2d;
  --qz-ink-secondary:#5b616b; --qz-ink-tertiary:#5b616b;
  --qz-accent:#2563eb; --qz-accent-hover:#1d4ed8;
  --qz-accent-soft:#edf2ff; --qz-on-accent:#fff;
  --qz-line:#e4e7ec; --qz-line-strong:#bfc0c7;
  --qz-focus:#2563eb;
  --qz-font-sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --qz-font-size-12:.875rem; --qz-font-size-14:.875rem;
  --qz-font-size-16:1rem; --qz-leading-body:1.65;
  --qz-radius-control:.625rem; --qz-radius-surface:.75rem;
  --qz-header-height:4rem; --qz-shadow-float:0 8px 24px #1d1d1f0a;
  --qz-shadow-menu:0 16px 48px #1d1d1f18;
  --qc-body:.875rem; --qc-ui:.875rem; --qc-caption:.875rem;
  --qc-page:clamp(1.5rem,2.2vw,2rem); --qc-section:1.25rem;
  --qc-card:.9375rem; --qc-gap:1.5rem;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
  /* Map older page variables to the same palette, not a second theme. */
  --bg:var(--qz-canvas); --bg-soft:var(--qz-canvas); --bg-secondary:var(--qz-surface-muted);
  --surface:var(--qz-surface); --surface-soft:var(--qz-surface-muted); --card:var(--qz-surface);
  --ink:var(--qz-ink); --text:var(--qz-ink); --ink-2:var(--qz-ink-secondary);
  --ink-3:var(--qz-ink-tertiary); --text-secondary:var(--qz-ink-secondary); --text-muted:var(--qz-ink-secondary);
  --blue:var(--qz-accent); --blue-strong:var(--qz-accent-hover); --blue-soft:var(--qz-accent-soft);
  --accent:var(--qz-accent); --accent-soft:var(--qz-accent-soft);
  --line:var(--qz-line); --hair:var(--qz-line); --border:var(--qz-line); --border-light:var(--qz-line);
  --paper:var(--qz-surface); --muted:var(--qz-ink-secondary); --soft:var(--qz-ink-secondary);
  --directory-muted:var(--qz-ink-secondary); --directory-line:var(--qz-line);
  --directory-surface:var(--qz-surface); --directory-soft:var(--qz-canvas);
}
html.dark,html[data-theme="dark"] {
  --qz-canvas:#161618; --qz-surface:#222225; --qz-surface-muted:#2b2b30;
  --qz-surface-strong:#34343a; --qz-ink:#f5f5f7;
  --qz-ink-secondary:#b6b6bf; --qz-ink-tertiary:#b6b6bf;
  --qz-line:#3b3b41; --qz-line-strong:#66666f;
  --qz-accent:#8fb2ff; --qz-accent-hover:#b3caff; --qz-accent-soft:#29334d;
  --qz-on-accent:#161618; --qz-focus:#8fb2ff;
}
body,body.qz-shell,body.discovery-page,body.studio {
  background:var(--qz-canvas); color:var(--qz-ink); font-family:var(--qz-font-sans);
  font-size:var(--qc-body); line-height:var(--qz-leading-body); -webkit-font-smoothing:auto;
}
button,input,textarea,select { font-family:var(--qz-font-sans); }
input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]),textarea { font-size:var(--qc-body); }
:focus-visible { outline:2px solid var(--qz-focus); outline-offset:3px; }
/* The navigation is one line; visible active state is retained. */
.qz-header { background:color-mix(in srgb,var(--qz-surface) 92%,transparent); border-color:var(--qz-line); backdrop-filter:blur(16px); }
.qz-header .qz-header-brand-copy strong { font-size:1.125rem; letter-spacing:-.025em; }
.qz-header-brand { min-width:0; }
.qz-header .qz-header-current,.qz-header .qz-module-link,.qz-header .qz-favorites-link { font-size:var(--qc-ui); }
.qz-header [aria-current="page"] { color:var(--qz-ink); }
.qz-module-link::after { display:none; }
.qz-header .qz-module-link[aria-current="page"] { background:var(--qz-surface-muted); border-radius:var(--qz-radius-control); }
.qz-header button,.qz-header .qz-favorites-link { min-height:44px; }
.qz-header kbd,.big-search .kbd,.hero-search kbd { display:none; }
/* Search, then browse. No hero art or marketing chrome. */
.directory-first .home-browse-layout { margin-block:32px 64px; gap:32px; grid-template-columns:208px minmax(0,1fr); }
.directory-first .home-start { padding:12px 0 24px; }
.directory-first .hero { max-width:none; align-items:center; text-align:center; padding:0 0 20px; }
.directory-first .home-start .hero h1 { font-size:var(--qc-page); font-weight:600; line-height:1.3; letter-spacing:-.035em; }
.directory-first .catalogue-overview { justify-content:center; margin:16px 0 20px; gap:24px; font-size:var(--qc-ui); }
.directory-first .catalogue-overview strong { font-size:inherit; font-weight:600; }
.directory-first .big-search { width:min(100%,760px); height:60px; background:var(--qz-surface); border-color:var(--qz-line); border-radius:var(--qz-radius-surface); box-shadow:none; }
.directory-first .home-search-submit { background:var(--qz-accent); color:var(--qz-on-accent)!important; border-radius:var(--qz-radius-control); font-size:var(--qc-ui); font-weight:500; }
.directory-first .scene-shortcuts { max-width:760px; margin:12px auto 0; gap:8px; }
.directory-first .scene-shortcuts a { background:transparent; border:0; min-height:44px; font-weight:500; color:var(--qz-ink-secondary); }
.directory-first .scene-shortcuts a:hover { background:var(--qz-surface-muted); color:var(--qz-ink); }
.directory-first .scene-shortcuts a span { display:none; }
.directory-first .directory-toolbar { padding-block:20px 12px; }
.directory-first .directory-heading h2 { font-size:var(--qc-section); font-weight:600; }
.directory-first .directory-fav,.directory-first .seg-btn { font-weight:500; }
.directory-first #homeTopPagination { display:none; } /* One pager, below results. */
.directory-first #homeLocal { border-color:var(--qz-line); padding-block:16px; }
.directory-first #homeLocalTitle { font-size:var(--qc-ui); font-weight:600; }
.directory-first #homeLocalGrid a h3 { font-weight:500; font-size:var(--qc-ui); }
/* Categories remain complete. A selected row, not 19 little cards. */
.directory-first #directories,body[data-category-id] #directories { background:transparent; border:0; border-radius:0; padding:0 12px 0 0; border-right:1px solid var(--qz-line); }
#directories .portal-head h2 { font-size:var(--qc-ui); font-weight:600; }
#directories .portal-head p { font-size:var(--qc-caption); }
#directories .portal-card { min-height:44px; border:0; border-radius:10px; padding:8px 10px; gap:10px; }
#directories .portal-card strong { font-size:var(--qc-ui); font-weight:400; }
#directories .portal-card small { font-size:var(--qc-caption); }
#directories .portal-card small b { font-weight:500; font-variant-numeric:tabular-nums; }
#directories .portal-card[aria-current],#directories .portal-card.is-selected,.home-all-categories.is-selected { background:var(--qz-surface); color:var(--qz-ink); border-left:2px solid var(--qz-accent); }
/* Name + purpose + action. No repeated category label inside a category. */
.discovery-tool,.discovery-guide { border-color:var(--qz-line); border-radius:var(--qz-radius-surface); box-shadow:none; }
.discovery-tool { padding:20px; gap:12px; }
.discovery-page .discovery-tool h3,body[data-category-id] .discovery-tool h3 { font-size:var(--qc-card); line-height:1.4; font-weight:600; }
.discovery-page .discovery-tool p,body[data-category-id] .discovery-tool p,.discovery-guide p { font-size:var(--qc-ui); line-height:1.65; }
.discovery-tool .discovery-label,.discovery-guide small { font-size:var(--qc-caption); color:var(--qz-ink-secondary); }
body[data-category-id] .discovery-tool:not(:has(a[rel~="sponsored"]))>.discovery-label { display:none; }
.discovery-tool .discovery-card-actions { margin-top:auto; gap:16px; }
.discovery-tool .discovery-card-actions a,.discovery-tool .discovery-card-actions button { min-height:44px; font-size:var(--qc-ui); }
.discovery-tool .discovery-open { background:transparent!important; padding:0 4px; font-weight:500; }
.discovery-tool .discovery-fav { min-width:44px; min-height:44px; }
.discovery-tool:hover,.discovery-guide:hover { transform:none; border-color:var(--qz-line-strong); box-shadow:none; }
.category-hero { padding-block:8px 24px; }
.hero-copy h1,.directory-intro h1 { font-size:var(--qc-page)!important; font-weight:650; line-height:1.3; }
.hero-copy p { font-size:var(--qc-ui); max-width:68ch; line-height:1.65; }
.hero-facts { gap:20px; margin-top:16px; }
.scenario-chip { border-radius:var(--qz-radius-control); font-size:var(--qc-caption); font-weight:500; }
.result-line { font-size:var(--qc-caption); }
.category-scenario-panel summary { min-height:44px; font-size:var(--qc-ui); }
.category-scenario-panel summary small { display:none; } /* Count already in hero. */
#categoryScenarioPanel>summary>span { display:none; }
/* Online tools: icon and title on the same row; quiet, generous work area. */
.toolbox-hero { padding-block:32px 24px; }
.toolbox-hero .hero-title { font-size:var(--qc-page); font-weight:650; }
.toolbox-hero .hero-sub { font-size:var(--qc-ui); margin-top:12px; }
.toolbox-hero .hero-search { height:56px; border-radius:var(--qz-radius-surface); box-shadow:none; }
.toolbox-hero .toolbox-privacy { font-size:var(--qc-caption); max-width:640px; margin:12px auto 0; }
.toolbox-categories { padding:8px; background:transparent; border:0; border-right:1px solid var(--qz-line); border-radius:0; }
.toolbox-categories .cat-tabs button { font-size:var(--qc-ui); }
.toolbox-categories .cat-tabs .tab-count { background:transparent; font-size:var(--qc-caption); }
.toolbox-categories .cat-tabs button.on { background:var(--qz-surface); color:var(--qz-ink); border-left:2px solid var(--qz-accent); }
.toolbox-results-head h2 { font-size:var(--qc-section); }
.toolbox-results .mini-open { display:grid; grid-template-columns:40px minmax(0,1fr); grid-template-rows:auto 1fr; align-content:start; text-align:left; gap:16px 12px; padding:22px; min-height:164px; }
.toolbox-results .mini-icon { grid-column:1; grid-row:1; background:var(--qz-surface-muted); color:var(--qz-ink); }
.toolbox-results .mini-name { grid-column:2; grid-row:1; align-self:center; padding-right:24px; font-size:var(--qc-card); font-weight:600; }
.toolbox-results .mini-desc { grid-column:1/-1; grid-row:2; font-size:var(--qc-ui); line-height:1.65; }
.toolbox-results .mini-open::after { display:none; } /* Whole card is the button. */
.toolbox-results .mini-card { border-color:var(--qz-line); border-radius:var(--qz-radius-surface); }
.toolbox-results .mini-star { min-width:44px; min-height:44px; top:4px; right:4px; }
.toolbox-results .mini-card:hover { border-color:var(--qz-line-strong); }
.toolbox-results .mini-card:hover .mini-name { color:var(--qz-accent); }
.workspace-shell .tool-card { padding:32px; border-radius:var(--qz-radius-surface); box-shadow:none; }
.workspace-shell .tool-name { font-size:var(--qc-page); font-weight:650; }
.workspace-shell .tool-desc { font-size:var(--qc-body); line-height:1.65; }
.workspace-shell .btn,.tool-modal-panel .btn { font-weight:500; font-size:var(--qc-ui); box-shadow:none; }
.tool-modal-panel { border-radius:20px; box-shadow:var(--qz-shadow-menu); }
.tool-modal-panel .tool-input,.workspace-shell .tool-input { background:var(--qz-surface); }
/* Reading and community use the same type ladder, not more nested panels. */
.community-header h1,.composer-head h1,.beginner-hero h1,.reading-hero h1,.guide-hero h1,.discovery-scene-page h1 { font-size:var(--qc-page); line-height:1.3; font-weight:650; }
.community-eyebrow,.community-kicker,.directory-intro .eyebrow,.group-kicker { display:none; }
.community-sidebar,.community-aside .qz-surface { box-shadow:none; border-color:var(--qz-line); border-radius:var(--qz-radius-surface); }
.community-shell .qz-btn,.community-shell button { font-size:var(--qc-ui); font-weight:500; }
.post-title { font-size:var(--qc-card); }
.directory-item { border-color:var(--qz-line); }
.directory-item strong { font-size:var(--qc-card)!important; font-weight:600; }
.directory-item span,.directory-item small { font-size:var(--qc-ui)!important; }
.beginner-reading .reading-hero,.beginner-hero { background:transparent; border:0; box-shadow:none; padding-inline:0; }
.beginner-reading-nav,.beginner-subnav,.qz-learning-nav { display:flex; flex-wrap:wrap; gap:8px; padding-block:12px; margin-bottom:24px; }
.beginner-reading-nav a,.beginner-subnav a,.qz-learning-nav a { display:inline-flex; align-items:center; min-height:44px; padding:8px 16px; border-radius:var(--qz-radius-control); font-size:var(--qc-ui); }
.beginner-reading-nav a:hover,.beginner-subnav a:hover,.qz-learning-nav a:hover { background:var(--qz-surface); }
.qz-learning-nav a[aria-current="page"] { background:var(--qz-surface); font-weight:600; }
.beginner-reading p,.beginner-reading li,.discovery-scene-page section>p { font-size:var(--qc-body); line-height:1.8; }
.beginner-reading h2,.discovery-scene-page h2 { font-size:var(--qc-section); }
.beginner-reading .reading-search-hint { display:none; }
.beginner-local-search input:placeholder-shown~[data-beginner-search-status] { display:none; } /* Live results stay visible after typing. */
.discovery-scene-page .discovery-materials { background:transparent; border:0; padding:0; border-radius:0; }
body.whitepaper-original { font-family:var(--qz-font-sans); }
.whitepaper-original .hero-title,.whitepaper-original .section.hero h1 { font-size:var(--qc-page); }
.whitepaper-original .section { background:var(--qz-surface); border-color:var(--qz-line); box-shadow:none; }
.whitepaper-original .section p,.whitepaper-original .section li { font-size:var(--qc-body); line-height:1.8; }
.whitepaper-original .author-box,.whitepaper-original .author-card { background:var(--qz-surface-muted); color:var(--qz-ink); box-shadow:none; }
.whitepaper-original .author-box p,.whitepaper-original .author-card p { color:var(--qz-ink-secondary); }
.whitepaper-original .signature-card { background:var(--qz-surface-muted); color:var(--qz-ink); border:1px solid var(--qz-line); box-shadow:none; }
.whitepaper-original .signature-card p { color:var(--qz-ink-secondary); }
footer,.site-footer,.footer { font-family:var(--qz-font-sans); font-size:var(--qc-caption); line-height:1.7; }
/* Studio keeps its actual service states, controls and original assets. */
.studio { font-size:var(--qc-body); }
.studio .topbar { background:var(--qz-surface); }
.studio .hero-title { font-size:var(--qc-page); line-height:1.3; letter-spacing:-.035em; font-weight:650; }
.studio .hero-title span { color:var(--qz-ink); }
.studio h1 { font-size:var(--qc-page); font-weight:650; }
.studio h2 { font-size:var(--qc-section); font-weight:600; }
.studio h3 { font-size:var(--qc-card); font-weight:600; }
.studio .eyebrow { display:none; }
.studio .studio-hero { padding-block:32px 24px; }
.studio .top-actions button,.studio .top-actions a { min-height:44px; font-size:var(--qc-caption); }
.studio button,.studio .button,.studio input,.studio textarea,.studio select { font-size:var(--qc-ui); border-radius:var(--qz-radius-control); }
.studio input,.studio textarea { font-size:var(--qc-body); }
.studio .icon-button { min-width:44px; min-height:44px; }
.studio .primary { color:var(--qz-on-accent); font-weight:500; box-shadow:none; }
.studio .panel,.studio .composer,.studio .featured-card,.studio .visual-card,.studio .library-card,.studio .task-card { border-color:var(--qz-line); border-radius:var(--qz-radius-surface); box-shadow:none; }
.studio .capability-label,.studio .field-note,.studio .save-state,.studio .preview-toolbar,.studio .notice,.studio .featured-card p { font-size:var(--qc-caption); line-height:1.65; }
.studio .composer-tab-hint { display:none; }
.studio .home-hero { padding:40px 32px 32px; }
.studio .home-hero h1 { font-size:var(--qc-page); font-weight:600; letter-spacing:-.035em; line-height:1.3; }
.studio .home-hero h1 span { color:var(--qz-ink); }
.studio .composer-tabs p { display:none; } /* Repeats the upload and brief controls. */
.studio .composer-tabs button { min-height:44px; font-size:var(--qc-ui); padding:8px 18px; }
.studio .output-line>span,.studio .output-line small,.studio .output-choice,.studio .output-choice span,.studio .more-output { font-size:var(--qc-caption); }
.studio .compact .output-choice span,.studio .more-output { min-height:44px; padding:8px 12px; }
.studio .composer-status,.studio .preview-badge,.studio .section-title p,.studio .section-title>a,.studio .quick-tools small { font-size:var(--qc-caption); }
.studio .section-title h2 { font-size:var(--qc-section); }
.studio .quick-tools button,.studio .quick-tool-grid a { font-size:var(--qc-ui); }
.studio .library-card p,.studio .visual-card p,.studio .repair-card p,.studio .workflow-form label,.studio .workflow-form small { font-size:var(--qc-caption); line-height:1.7; }
.studio .composer-body { background:var(--qz-canvas); }
.studio .sidebar { box-shadow:none; border-color:var(--qz-line); }
.studio .sidebar nav a,.studio .subnav nav a { font-size:var(--qc-ui); font-weight:500; }
.studio small { font-size:var(--qc-caption); }
.studio p { font-size:var(--qc-body); line-height:1.7; }
.studio .composer-status,.studio .scope-note p,.studio .preview-badge,.studio .section-title p { font-size:var(--qc-caption); }
.studio .hero-composer .composer-status { font-size:var(--qc-caption); }
.studio .field-note,.studio .reference-note,.studio .workflow-form .field-note,.studio .workflow-form .char-count,.studio .composer-status { font-size:var(--qc-caption)!important; }
.studio .repair-items>a,.studio .repair-items>button { min-height:48px; font-size:var(--qc-ui); }
.studio .repair-items span { font-size:var(--qc-caption); }
.studio .video-shortcuts a,.studio .video-shortcuts a span { font-size:var(--qc-caption); min-height:44px; }
.studio .reference-card h3 { font-size:var(--qc-card); }
.studio .reference-card small { font-size:var(--qc-caption); }
.studio .reference-card>div>span { font-size:var(--qc-ui); min-height:44px; padding:8px 12px; border-radius:var(--qz-radius-control); }
.studio .composer-entry .tiny-button { font-size:var(--qc-caption); min-height:44px; padding:8px 12px; }
.studio .composer-footer>button { font-size:var(--qc-ui); min-height:44px; }
.studio .upload-box p,.studio .filter-tabs button { font-size:var(--qc-caption); }
.studio .filter-tabs button { min-height:44px; }
.studio .topbar #menu-toggle { min-width:44px; min-height:44px; }
.studio .top-actions #logout { font-size:var(--qc-caption); min-height:44px; }
.studio .generation-eyebrow,.studio .user-subnav p { display:none; }
.studio .generation-page .page-heading h1,.studio .generation-heading h1 { font-size:var(--qc-page); }
.studio .generation-page .page-heading p { font-size:var(--qc-body); }
.studio .generation-page .inline-note,.studio .generation-page .check-row,.studio .generation-page .check-row span { font-size:var(--qc-caption); line-height:1.7; }
.studio .inline-note { font-size:var(--qc-caption)!important; }
.studio .generation-page .generation-step { font-size:var(--qc-caption); }
.studio #account-action-page .empty-state h1 { font-size:var(--qc-section); }
.studio .repair-chip,.studio .repair-chip span,.studio .video-tool span { font-size:var(--qc-caption); }
.studio .sidebar .nav-label { display:none; }
.studio .user-subnav nav { flex-wrap:wrap; overflow:visible; gap:6px; }
.studio .user-subnav nav a { min-height:44px; }
@media(max-width:1000px) {
  .toolbox-categories { border:1px solid var(--qz-line); border-radius:var(--qz-radius-control); background:var(--qz-surface); }
}
@media(max-width:800px) {
  .directory-first .home-browse-layout { margin-top:24px; gap:16px; }
  .directory-first .home-start { padding:0 0 8px; }
  .directory-first .hero { text-align:center; padding:0 0 12px; }
  .directory-first .home-start .hero h1 { font-size:2rem; line-height:1.35; }
  .directory-first .catalogue-overview { margin:12px 0 16px; gap:16px; }
  .directory-first .catalogue-overview a[href='/tools/'] { background:transparent; padding:0; }
  .directory-first .scene-shortcuts { grid-template-columns:repeat(3,minmax(0,1fr)); gap:4px; }
  .directory-first #directories,body[data-category-id] #directories { border:1px solid var(--qz-line); border-radius:var(--qz-radius-control); background:var(--qz-surface); padding:6px 8px; }
  .directory-first .directory-toolbar { padding-block:12px; }
  .directory-first .directory-actions .seg { margin-top:8px; }
  .discovery-tool { padding:20px; }
  .category-hero { padding-block:0 16px; }
  .category-workspace .hero-copy h1 { font-size:2rem!important; }
  .toolbox-hero { padding:24px 16px; }
  .toolbox-results .mini-open { padding:20px; min-height:140px; }
  .workspace-shell .tool-card { padding:24px 20px; }
  .studio .studio-hero { padding-block:24px 20px; }
  .studio .home-hero { padding:28px 16px; }
  .studio main { padding-inline:16px; }
  .studio .user-subnav { padding:8px 16px; }
  .studio .topbar .preview-badge { display:none; } /* Full state remains beside submit. */
}
@media(max-width:540px) {
  .directory-first .big-search { height:56px; }
  .directory-first .home-search-submit { min-height:44px; padding-inline:16px; }
  .directory-first .home-start .hero h1 { font-size:1.875rem; }
  .directory-first .catalogue-overview { font-size:var(--qc-ui); }
  .directory-first .directory-heading h2 { font-size:1.375rem; }
  .tool-modal-panel { border-radius:0; }
  .studio .hero-title,.studio .home-hero h1 { font-size:1.875rem; }
}
/* Production's local Studio workbenches use a separate public-* shell. */
body.studio.public-studio h1 { font-size:var(--qc-page); line-height:1.3; font-weight:650; }
body.studio.public-studio :is(p,label,small,.field,.field>span,.board-note,.board-artifact-note,.public-handoff-direct) { font-size:var(--qc-caption)!important; line-height:1.7; }
body.studio.public-studio :is(button,input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),textarea) { font-size:var(--qc-ui)!important; }
body.studio.public-studio select { font-size:var(--qc-caption)!important; }
body.studio.public-studio :is(button,select,input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"])) { min-height:44px; }
body.studio.public-studio :is(.public-help-button,.public-back,.public-nav a,.public-handoff-direct) { font-size:var(--qc-caption); min-height:44px; }
/* The existing concept gallery remains explicitly a preview, not a live API. */
body:has(.hero-gallery) :is(.edition,.section-index) { display:none; }
body:has(.hero-gallery) h1 { font-size:var(--qc-page); line-height:1.3; letter-spacing:-.035em; }
body:has(.hero-gallery) :is(p,small,.header-status,.frame-stamp,.gallery-topline,.example-meta,.image-label,.results-count) { font-size:var(--qc-caption)!important; line-height:1.7; }
body:has(.hero-gallery) :is(button,.filter-button,.button-primary,.button-subtle,.back-link) { font-size:var(--qc-ui); min-height:44px; }
body:has(.hero-gallery) :is(.gallery-controls small,.filter-button span) { font-size:var(--qc-caption); }
body:has(.hero-gallery) .example-open strong { font-size:var(--qc-card); }
@media(max-width:800px) {
  body.studio.public-studio h1,body:has(.hero-gallery) h1 { font-size:2rem; }
}
@media(max-width:540px) {
  body.studio.public-studio .field:has(select) { grid-column:1/-1; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { animation:none!important; transition:none!important; }
}

/* System typography: readable normal weight, compact labels, full control targets. */
.qz-header .qz-header-brand-copy strong { letter-spacing:0; }
.qz-header .qz-module-link { font-weight:500; }
.discovery-scene-page { font-family:var(--qz-font-sans); }
.directory-first .home-browse-layout { margin-top:20px; }
.directory-first .home-start { padding-bottom:12px; }
.directory-first .hero { padding-bottom:12px; }
.directory-first .home-start .hero h1 { letter-spacing:0; line-height:1.35; }
.directory-first .catalogue-overview { margin:12px 0 16px; }
.directory-first .big-search { height:56px; }
.directory-first .directory-toolbar { padding-block:14px 10px; }
.directory-first #homeLocal { padding-block:10px; }
.discovery-tool { padding:16px; gap:10px; }
.discovery-page .discovery-tool p,body[data-category-id] .discovery-tool p,.discovery-guide p { line-height:1.6; }
.directory-first .discovery-tool>p,body[data-category-id] .discovery-tool>p { min-height:0; }
.hero-copy h1,.directory-intro h1,.toolbox-hero .hero-title,
.workspace-shell .tool-name,.community-header h1,.composer-head h1,
.beginner-hero h1,.reading-hero h1,.guide-hero h1,.discovery-scene-page h1,
.whitepaper-original .hero-title,.whitepaper-original .section.hero h1,
.studio .hero-title,.studio h1,.studio .home-hero h1,
body.studio.public-studio h1,body:has(.hero-gallery) h1 {
  font-weight:600; letter-spacing:0;
}
.category-hero { padding-block:0 16px; }
.hero-copy p { line-height:1.6; }
.toolbox-hero { padding-block:24px 16px; }
.toolbox-results .mini-open { padding:16px; gap:12px; min-height:144px; }
.toolbox-results .mini-desc { line-height:1.6; }
.studio .studio-hero { padding-block:24px 16px; }
.studio .home-hero { padding:28px 24px; }
@media(max-width:800px) {
  .directory-first .home-browse-layout { margin-top:20px; }
  .directory-first .home-start .hero h1,.category-workspace .hero-copy h1,
  body.studio.public-studio h1,body:has(.hero-gallery) h1 { font-size:var(--qc-page)!important; }
  .directory-first .home-start { padding-bottom:8px; }
  .directory-first .directory-toolbar { padding-block:10px; }
  .discovery-tool { padding:16px; }
  .toolbox-hero { padding:20px 16px 16px; }
  .toolbox-results .mini-open { min-height:128px; }
  .studio .home-hero { padding:24px 16px; }
}
@media(max-width:540px) {
  .directory-first .home-browse-layout { margin-top:16px; }
  .directory-first .catalogue-overview { gap:12px; }
  .directory-first .directory-heading h2 { font-size:1.25rem; }
  .studio .hero-title,.studio .home-hero h1 { font-size:var(--qc-page); }
}

/* User preference: compact navigation and cards, native screen rendering. */
body,body.qz-shell,body.discovery-page,body.studio {
  -webkit-font-smoothing:auto; -moz-osx-font-smoothing:auto; text-rendering:auto;
}
.qz-header .qz-header-brand-copy strong { font-size:1.125rem; font-weight:600; }
.qz-header .qz-module-link { font-size:.875rem; font-weight:500; letter-spacing:0; }
.directory-first .discovery-tool p,body[data-category-id] .discovery-tool p {
  font-size:.875rem; line-height:1.65;
}
body.studio.public-studio :is(input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),textarea) {
  font-size:var(--qc-input)!important;
}

.qz-command-field input { font-size:1rem; }

/* Official and promotional entry points are peers; disclosure remains explicit. */
.discovery-tool .discovery-card-actions:has(>.discovery-promotion) {
  display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
  align-items:stretch; column-gap:12px; row-gap:8px;
}
.discovery-tool .discovery-card-actions:has(>.discovery-promotion)>:is(.discovery-open,.discovery-promotion) {
  display:flex; flex-direction:row; align-items:center; justify-content:center;
  min-width:0; min-height:44px; padding:6px 4px;
  font-size:var(--qz-font-size-14); font-weight:500; line-height:1.5;
  white-space:normal; overflow-wrap:anywhere; text-align:center;
}
.discovery-tool .discovery-card-actions:has(>.discovery-promotion)>:not(.discovery-open):not(.discovery-promotion) {
  grid-column:1/-1; justify-self:start;
}
.discovery-tool .discovery-card-actions:has(>.discovery-promotion)>:is(.discovery-open,.discovery-promotion):hover {
  text-decoration:underline; text-underline-offset:4px;
}

/* AI discovery: compact native text and clean light surfaces, based on user-selected reference. */
body,body.qz-shell,body.discovery-page { font-weight:400; letter-spacing:normal; }
.discovery-tool { border-radius:12px; }
.discovery-tool h3,.discovery-page .discovery-tool h3 { font-size:.9375rem; font-weight:600; line-height:1.5; letter-spacing:normal; }
.qz-discovery-links { display:flex; flex-wrap:wrap; gap:4px 16px; align-items:center; padding:6px 0; margin:0; }
.qz-discovery-links a { display:inline-flex; align-items:center; min-height:40px; color:var(--qz-ink-secondary); font-size:.875rem; font-weight:500; text-decoration:none; }
.qz-discovery-links a:hover,.qz-discovery-links a[aria-current="page"] { color:var(--qz-accent); text-decoration:underline; text-underline-offset:6px; }
.qz-category-discovery { display:flex; flex-wrap:wrap; gap:8px 20px; margin-block:12px 0; }
.qz-category-discovery a { display:inline-flex; align-items:center; min-height:44px; font-size:.875rem; color:var(--qz-accent); }
@media(max-width:800px) { .qz-discovery-links a { min-height:44px; } }

/* Studio inherits the site's single palette/type system; artwork pixels stay owned by editors. */
body.studio.public-studio {
  color-scheme:inherit;
  --public-header-height:var(--qz-header-height);
  --public-sidebar-width:208px;
  --qz-canvas:inherit; --qz-surface:inherit; --qz-surface-muted:inherit;
  --qz-surface-strong:inherit; --qz-ink:inherit;
  --qz-ink-secondary:inherit; --qz-ink-tertiary:inherit;
  --qz-line:inherit; --qz-line-strong:inherit;
  --qz-accent:inherit; --qz-accent-hover:inherit; --qz-accent-soft:inherit;
  --qz-on-accent:inherit; --qz-focus:inherit;
  --st-ink:var(--qz-ink); --st-muted:var(--qz-ink-secondary);
  --st-line:var(--qz-line); --st-accent:var(--qz-accent);
  font-weight:400; letter-spacing:normal;
}
body.studio.public-studio [hidden] { display:none!important; }
body.studio.public-studio :is(.public-main,.public-layout) { min-width:0; }
body.studio.public-studio .public-main { padding:0 0 32px; }
body.studio.public-studio .public-sidebar {
  padding:24px 16px; overflow-y:auto; scrollbar-width:thin;
  scrollbar-color:var(--qz-line-strong) transparent;
}
body.studio.public-studio .public-nav { gap:4px; }
body.studio.public-studio .public-nav a {
  border-radius:var(--qz-radius-control); min-height:44px;
  font-size:var(--qc-ui); font-weight:500; padding:10px 12px;
}
body.studio.public-studio .public-nav a[aria-current="page"] {
  background:var(--qz-accent-soft); color:var(--qz-accent); font-weight:600;
}
body.studio.public-studio .public-local-note { gap:10px; padding:20px 4px 0; }
body.studio.public-studio .public-local-note :is(strong,p) { font-size:.875rem; line-height:1.65; }
body.studio.public-studio :is(.content-page,.batch-page,.pp-page,.board-editor) {
  width:100%; max-width:1440px; margin-inline:auto; padding:28px 32px;
}
body.studio.public-studio :is(.page-heading,.pp-header,.board-heading) { margin:0 0 24px; }
body.studio.public-studio :is(.page-heading,.pp-header,.board-heading) h1 {
  font-size:clamp(1.5rem,2.2vw,1.75rem); font-weight:600; letter-spacing:normal; line-height:1.35;
}
body.studio.public-studio :is(h2,.board-sidebar-section h2,.batch-controls h2,.batch-results h2) {
  font-size:1rem; font-weight:600; line-height:1.5;
}
body.studio.public-studio :is(.page-heading,.pp-header,.board-heading) p {
  max-width:70ch; margin-top:8px; color:var(--qz-ink-secondary); line-height:1.65;
}
body.studio.public-studio button {
  min-height:44px; border-radius:var(--qz-radius-control);
  border-color:var(--qz-line); background:var(--qz-surface); color:var(--qz-ink);
  font-weight:500; padding:10px 14px; line-height:1.5;
  box-shadow:none; white-space:normal;
}
body.studio.public-studio button:hover:not(:disabled) {
  border-color:var(--qz-line-strong); background:var(--qz-surface-muted);
}
body.studio.public-studio button:active:not(:disabled) { background:var(--qz-surface-strong); }
body.studio.public-studio button.primary {
  background:var(--qz-accent); border-color:var(--qz-accent); color:var(--qz-on-accent);
}
body.studio.public-studio button.primary:hover:not(:disabled) {
  background:var(--qz-accent-hover); border-color:var(--qz-accent-hover);
}
body.studio.public-studio button.primary:active:not(:disabled) { filter:brightness(.94); }
body.studio.public-studio button:disabled { opacity:.48; cursor:not-allowed; }
body.studio.public-studio :is(button[aria-pressed="true"],.board-layer-row[data-selected="true"]) {
  color:var(--qz-accent); background:var(--qz-accent-soft); border-color:var(--qz-accent);
}
body.studio.public-studio :is(button,input,select,textarea,summary,a):focus-visible {
  outline:2px solid var(--qz-focus); outline-offset:3px;
}
body.studio.public-studio :is(input,select,textarea) {
  background:var(--qz-surface); color:var(--qz-ink); border-color:var(--qz-line-strong);
  border-radius:var(--qz-radius-control); font-family:var(--qz-font-sans);
  caret-color:var(--qz-accent); accent-color:var(--qz-accent); min-width:0;
}
body.studio.public-studio :is(input,textarea)::placeholder { color:var(--qz-ink-secondary); opacity:1; }
body.studio.public-studio :is(input,select,textarea):disabled {
  background:var(--qz-surface-muted); color:var(--qz-ink-secondary); cursor:not-allowed;
}
body.studio.public-studio :is(input[type="range"],input[type="checkbox"],input[type="radio"]) {
  padding:0; box-shadow:none;
}
body.studio.public-studio input[type="range"] { min-height:44px; }
body.studio.public-studio input[type="color"] { min-height:44px; padding:5px; cursor:pointer; }
body.studio.public-studio :is(.pp-field,.board-field,.field)>span {
  font-size:var(--qc-ui); font-weight:500; color:var(--qz-ink);
}
body.studio.public-studio :is(.pp-field small,.pp-field output,.field-note,.board-note,.pp-note,.pp-status,.board-save-state) {
  color:var(--qz-ink-secondary); font-size:var(--qc-caption); line-height:1.65;
}
body.studio.public-studio :is(.panel,.pp-settings,.pp-source,.board-inspector,.public-starting) {
  background:var(--qz-surface); border:1px solid var(--qz-line);
  border-radius:var(--qz-radius-surface); box-shadow:none;
}
body.studio.public-studio :is(.pixel-layout,.batch-layout,.lv-layout) {
  grid-template-columns:280px minmax(0,1fr); gap:24px;
}
body.studio.public-studio :is(.pixel-layout,.batch-layout,.lv-layout)>.panel { padding:20px; }
body.studio.public-studio :is(.canvas-stage,.pp-stage,.board-stage,.lv-stage) {
  background:var(--qz-surface-muted); border:1px solid var(--qz-line);
  border-radius:var(--qz-radius-control);
}
body.studio.public-studio :is(.pixel-result,.batch-controls,.pp-preview) { top:calc(var(--public-header-height) + 24px); }
body.studio.public-studio :is(#px-empty,.lv-empty,.batch-empty) { background:var(--qz-surface-muted); }
body.studio.public-studio :is(.upload-label,.batch-upload) {
  background:var(--qz-surface); border-color:var(--qz-line-strong);
  border-radius:var(--qz-radius-control); min-height:112px;
}
body.studio.public-studio :is(.upload-label,.batch-upload):hover {
  border-color:var(--qz-accent); background:var(--qz-accent-soft);
}
body.studio.public-studio input::file-selector-button {
  font:inherit; min-height:44px; padding:8px 12px; border:1px solid var(--qz-line);
  border-radius:var(--qz-radius-control); background:var(--qz-surface); color:var(--qz-ink);
  cursor:pointer; margin-right:12px;
}
body.studio.public-studio input::file-selector-button:hover { background:var(--qz-surface-muted); }
body.studio.public-studio .pixel-tabs { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:20px; padding-bottom:16px; }
body.studio.public-studio .pixel-tabs button { border:1px solid transparent; background:transparent; }
body.studio.public-studio .pixel-tabs button[aria-pressed="true"] {
  background:var(--qz-accent-soft); border-color:transparent; color:var(--qz-accent);
}
body.studio.public-studio .public-feedback {
  margin:20px 32px 0; background:var(--qz-accent-soft); color:var(--qz-ink);
  border-color:var(--qz-line); border-radius:var(--qz-radius-control); font-size:var(--qc-ui);
}
body.studio.public-studio .public-feedback button { min-height:44px; width:44px; padding:12px; border:0; background:transparent; }
body.studio.public-studio :is(.public-feedback[data-error="true"],.pp-error,.board-warning,.board-status[data-error="true"],#lv-status[data-error="true"]) {
  color:var(--qz-danger); border-color:var(--qz-danger);
}
body.studio.public-studio .public-feedback[data-error="true"] { background:var(--qz-surface); }
body.studio.public-studio :is(.public-dialog,.board-dialog) {
  color:var(--qz-ink); background:var(--qz-surface); border:0; border-radius:var(--qz-radius-surface);
  box-shadow:var(--qz-shadow-menu); max-height:calc(100dvh - 32px);
  width:min(100% - 32px,580px); padding:24px; scrollbar-width:thin;
  scrollbar-color:var(--qz-line-strong) transparent;
}
body.studio.public-studio .board-dialog:not(.board-confirm) { width:min(980px,calc(100% - 32px)); }
body.studio.public-studio :is(.public-dialog,.board-dialog)::backdrop { background:var(--qz-overlay); }
body.studio.public-studio :is(.public-dialog-head,.board-dialog-head) h2 { font-size:1.25rem; }
body.studio.public-studio :is(.public-dialog-head,.board-dialog-head)>button { min-height:44px; width:44px; padding:10px; }
body.studio.public-studio .board-layer-row { grid-template-columns:minmax(0,1fr) 44px 44px; background:var(--qz-surface-muted); }
body.studio.public-studio .board-layer-row[data-selected="true"] { background:var(--qz-accent-soft); }
body.studio.public-studio .board-layer-row button { background:transparent; min-height:44px; padding:8px; }
body.studio.public-studio .board-layer-row .board-layer-select { justify-content:flex-start; }
body.studio.public-studio .board-layer-row .board-icon-button[aria-pressed="true"] { background:var(--qz-accent-soft); }
body.studio.public-studio .board-layers { scrollbar-color:var(--qz-line-strong) transparent; }
body.studio.public-studio .board-local-file-panel { background:var(--qz-surface); border-color:var(--qz-line); }
body.studio.public-studio .public-handoff { padding-top:12px; margin-top:16px; }
body.studio.public-studio .qz-header button { padding:0; background:transparent; border:0; min-height:44px; }
body.studio.public-studio .qz-header button:hover { background:var(--qz-surface-muted); }
.qz-studio-help span { display:none; }
.qz-studio-help svg { width:20px; height:20px; }
body.studio.public-studio .skip:focus { position:fixed; z-index:calc(var(--qz-layer-dialog) + 2); color:var(--qz-ink); background:var(--qz-surface); outline:2px solid var(--qz-focus); }
.studio-preview-status { max-width:var(--qz-container); margin:24px auto 0; padding-inline:var(--qz-gutter); font-size:.875rem; color:var(--qz-ink-secondary); }
html.dark body.studio.public-studio :is(.public-nav,.board-editor,.public-dialog,.pixel-page,.batch-page,.pp-page,.local-video-page,.public-feedback) img[src*="/icons/"] { filter:brightness(0) invert(1); opacity:.8; }
html.dark body.studio.public-studio button.primary img[src*="/icons/"] { filter:brightness(0); opacity:1; }
@media(min-width:901px) {
  body.studio.public-studio .board-editor { min-height:620px; }
}
@media(max-width:1200px) and (min-width:901px) {
  body.studio.public-studio { --public-sidebar-width:192px; }
  body.studio.public-studio :is(.content-page,.batch-page,.pp-page,.board-editor) { padding:24px; }
  body.studio.public-studio :is(.pixel-layout,.batch-layout,.lv-layout) { grid-template-columns:250px minmax(0,1fr); gap:20px; }
}
@media(max-width:1000px) {
  body.studio.public-studio .lv-layout { grid-template-columns:minmax(0,1fr); }
  body.studio.public-studio .lv-preview { order:-1; }
}
@media(max-width:900px) {
  body.studio.public-studio .public-layout { display:block; }
  body.studio.public-studio .public-sidebar { height:auto; padding:8px 16px; overflow-y:visible; }
  body.studio.public-studio .public-nav { display:flex; overflow-x:auto; gap:4px; }
  body.studio.public-studio .public-nav a { flex-shrink:0; padding:10px 12px; }
  body.studio.public-studio .public-local-note { display:none; }
  body.studio.public-studio :is(.content-page,.batch-page,.pp-page,.board-editor) { padding:24px 20px; }
  body.studio.public-studio .public-feedback { margin:16px 20px 0; }
  body.studio.public-studio :is(.pixel-result,.batch-controls,.pp-preview) { position:static; }
}
@media(max-width:760px) {
  body.studio.public-studio :is(.pixel-layout,.batch-layout,.lv-layout,.pp-workspace) { grid-template-columns:minmax(0,1fr); gap:20px; }
  body.studio.public-studio .pixel-result { order:-1; }
  body.studio.public-studio :is(.content-page,.batch-page,.pp-page,.board-editor) { padding:20px 16px; }
  body.studio.public-studio .public-feedback { margin:16px 16px 0; }
  body.studio.public-studio .pixel-tabs { flex-wrap:nowrap; overflow-x:auto; scrollbar-width:thin; margin-right:0; padding-right:0; }
  body.studio.public-studio .pixel-tabs button { flex:none; white-space:nowrap; }
  body.studio.public-studio :is(.pixel-layout,.batch-layout,.lv-layout)>.panel { padding:16px; }
  body.studio.public-studio .board-layer-row { grid-template-columns:minmax(0,1fr) 44px 44px; }
  body.studio.public-studio .board-additions button { font-size:.875rem; }
  body.studio.public-studio .public-dialog-actions button { min-width:0; }
}
@media(max-width:520px) {
  body.studio.public-studio .public-nav a { flex:0 0 auto; flex-direction:row; min-width:0; font-size:.875rem; }
  body.studio.public-studio .public-nav a .ui-icon { width:18px; height:18px; }
  body.studio.public-studio .pixel-export { grid-template-columns:minmax(0,1fr); }
  body.studio.public-studio .board-topbar>button { flex:1 1 calc(50% - 8px); }
  body.studio.public-studio .board-toolbar { flex-wrap:wrap; }
  body.studio.public-studio .board-undo-actions { flex-direction:row; width:100%; }
}

/* Repeated UI patterns share semantics across navigation, tools and Studio.
   Editor canvases, artwork swatches, code and document content retain their own values. */
html:root {
  --accent-hover:var(--qz-accent-hover); --blue-dark:var(--qz-accent-hover);
  --text-tertiary:var(--qz-ink-tertiary); --line-strong:var(--qz-line-strong);
  --danger:var(--qz-danger); --success:var(--qz-success);
  --qc-input:1rem; --qc-reading:1rem;
  --qc-control-height:44px; --qc-control-padding:10px 14px;
  --qc-weight-ui:500; --qc-weight-heading:600; --qc-disabled:.48;
}
/* Standard native rendering keeps small Chinese text legible on Windows. */
body,body.qz-shell,body.discovery-page,body.studio,body.ac-page {
  font-family:var(--qz-font-sans); font-size:var(--qc-ui);
  font-weight:400; line-height:var(--qz-leading-body); letter-spacing:normal;
  -webkit-font-smoothing:auto; -moz-osx-font-smoothing:auto; text-rendering:auto;
}
:is(.ac-hero h1,.toolbox-hero .hero-title,.tool-modal-head h3,.workspace-shell .tool-name,
    .studio-preview-page .hero h1,.studio-preview-page .dialog-copy h2) {
  font-family:var(--qz-font-sans); font-size:var(--qc-page);
  font-weight:var(--qc-weight-heading); line-height:1.35; letter-spacing:0;
}
body.studio.public-studio :is(.page-heading,.pp-header,.board-heading) h1 {
  font-size:var(--qc-page); font-weight:var(--qc-weight-heading);
}
:is(.ac-card h2,.ac-news-copy h3,.discovery-tool h3,.toolbox-results .mini-name) {
  font-size:var(--qc-card); font-weight:var(--qc-weight-heading); line-height:1.5; letter-spacing:0;
}
.beginner-reading p,.beginner-reading li,.whitepaper-original .section p,.whitepaper-original .section li {
  font-size:var(--qc-reading); line-height:1.8;
}
/* These are equivalent action controls; menus, drawing tools and swatches keep their layout. */
:is(.qz-button,.ac-clear,.workspace-shell .btn,.tool-modal-body .btn,
    .studio-preview-page .button-primary,.studio-preview-page .button-subtle) {
  min-height:var(--qc-control-height); padding:var(--qc-control-padding);
  border:1px solid var(--qz-line); border-radius:var(--qz-radius-control);
  background:var(--qz-surface); color:var(--qz-ink);
  font-family:var(--qz-font-sans); font-size:var(--qc-ui);
  font-weight:var(--qc-weight-ui); line-height:1.5; text-decoration:none; box-shadow:none;
}
:is(.qz-button,.ac-clear,.workspace-shell .btn,.tool-modal-body .btn,
    .studio-preview-page .button-primary,.studio-preview-page .button-subtle):hover:not(:disabled):not([aria-disabled="true"]) {
  background:var(--qz-surface-muted); border-color:var(--qz-line-strong); color:var(--qz-ink);
}
:is(.qz-button,.ac-clear,.workspace-shell .btn,.tool-modal-body .btn,
    .studio-preview-page .button-primary,.studio-preview-page .button-subtle):active:not(:disabled):not([aria-disabled="true"]) {
  background:var(--qz-surface-strong); transform:none;
}
:is(.qz-button.is-primary,.workspace-shell .btn.primary,.tool-modal-body .btn.primary,
    .studio-preview-page .button-primary,.directory-first .home-search-submit) {
  background:var(--qz-accent); border-color:var(--qz-accent); color:var(--qz-on-accent);
}
:is(.qz-button.is-primary,.workspace-shell .btn.primary,.tool-modal-body .btn.primary,
    .studio-preview-page .button-primary,.directory-first .home-search-submit):hover:not(:disabled):not([aria-disabled="true"]) {
  background:var(--qz-accent-hover); border-color:var(--qz-accent-hover); color:var(--qz-on-accent); transform:none;
}
html:is(.dark,[data-theme="dark"]) :is(.qz-button.is-primary,.workspace-shell .btn.primary,.tool-modal-body .btn.primary) {
  color:var(--qz-on-accent);
}
:is(.workspace-shell,.tool-modal-body) .btn.ghost {
  color:var(--qz-ink-secondary); background:var(--qz-surface); border-color:var(--qz-line);
}
:is(.workspace-shell,.tool-modal-body) .btn.ghost:hover:not(:disabled) {
  color:var(--qz-accent); background:var(--qz-accent-soft); border-color:var(--qz-accent);
}
:is(.qz-button,.ac-clear,.workspace-shell .btn,.tool-modal-body .btn,
    .studio-preview-page button,.studio-preview-page .button-primary):is(:disabled,[aria-disabled="true"]) {
  opacity:var(--qc-disabled); cursor:not-allowed; transform:none;
}
:is(.qz-button,.ac-clear,.workspace-shell .btn,.tool-modal-body .btn,
    .studio-preview-page button,.studio-preview-page a):focus-visible {
  outline:2px solid var(--qz-focus); outline-offset:3px;
}
/* The same border, native input size, caret, placeholder and disabled state. */
:is(.qz-field,.ac-field input,.ac-field select,.workspace-shell .tool-input,.workspace-shell .tool-select,
    .tool-modal-body .tool-input,.tool-modal-body .tool-select) {
  color:var(--qz-ink); background:var(--qz-surface); border-color:var(--qz-line-strong);
  border-radius:var(--qz-radius-control); font-size:var(--qc-input); line-height:1.65;
  caret-color:var(--qz-accent); accent-color:var(--qz-accent); min-width:0;
}
:is(.qz-field,.ac-field input,.ac-field select,.workspace-shell .tool-select,.tool-modal-body .tool-select) {
  font-family:var(--qz-font-sans); min-height:var(--qc-control-height);
}
:is(.qz-field,.ac-field input,.workspace-shell .tool-input,.tool-modal-body .tool-input)::placeholder {
  color:var(--qz-ink-secondary); opacity:1;
}
:is(.qz-field,.ac-field input,.ac-field select,.workspace-shell .tool-input,.workspace-shell .tool-select,
    .tool-modal-body .tool-input,.tool-modal-body .tool-select):focus-visible {
  border-color:var(--qz-accent); outline:2px solid var(--qz-focus); outline-offset:0; box-shadow:none;
}
:is(.qz-field,.ac-field input,.ac-field select,.workspace-shell .tool-input,.workspace-shell .tool-select,
    .tool-modal-body .tool-input,.tool-modal-body .tool-select):disabled {
  background:var(--qz-surface-muted); color:var(--qz-ink-secondary); cursor:not-allowed;
}
:is(.tool-modal-body,.workspace-shell) .tool-output.error { color:var(--qz-danger); }
:is(.tool-modal-body,.workspace-shell) .tool-output {
  background:var(--qz-surface-muted); border-color:var(--qz-line); border-radius:var(--qz-radius-control);
}
/* Neutral surfaces, including gallery UI surrounding unchanged example images. */
:is(.discovery-tool,.ac-card,.toolbox-results .mini-card,.workspace-shell .tool-card) {
  background:var(--qz-surface); border-color:var(--qz-line); border-radius:var(--qz-radius-surface); box-shadow:none;
}
.tool-modal-panel { border-radius:var(--qz-radius-surface); }
.ac-logo { border-radius:var(--qz-radius-control); }
.ac-hero p,.ac-description { line-height:1.65; }
.ac-field select,.ac-clear,.ac-facet,.ac-tabs a { font-weight:var(--qc-weight-ui); }
.ac-clear,.ac-facet,.ac-field input,.ac-field select { border-radius:var(--qz-radius-control); }
.ac-facet[aria-pressed="true"] { background:var(--qz-accent-soft); color:var(--qz-accent); }
.studio-preview-page :is(.hero-gallery,.example-open,.example-dialog,.preview-scope,.site-footer) {
  background:var(--qz-surface); color:var(--qz-ink); border-color:var(--qz-line); box-shadow:none;
}
.studio-preview-page :is(.hero-gallery,.example-open,.example-dialog) { border-radius:var(--qz-radius-surface); }
.studio-preview-page :is(.hero-desc,.hero-footnote,.hero-gallery-bottom>p,.example-desc,
    .example-meta,.preview-scope>div>p,.scope-points span,.dialog-copy>p,.dialog-note,.site-footer) {
  color:var(--qz-ink-secondary); font-size:var(--qc-caption); line-height:1.65;
}
.studio-preview-page :is(.hero-gallery-bottom h2,.section-intro h2,.preview-scope h2) {
  color:var(--qz-ink); font-size:var(--qc-section); font-weight:var(--qc-weight-heading); line-height:1.5; letter-spacing:0;
}
.studio-preview-page :is(.gallery-controls button,.filter-button,.dialog-close) {
  color:var(--qz-ink-secondary); background:var(--qz-surface);
  border-color:var(--qz-line); border-radius:var(--qz-radius-control); font-weight:var(--qc-weight-ui);
}
.studio-preview-page :is(.gallery-controls button,.filter-button):hover { background:var(--qz-surface-muted); color:var(--qz-ink); }
.studio-preview-page :is(.gallery-controls button,.filter-button)[aria-pressed="true"] {
  background:var(--qz-accent-soft); border-color:var(--qz-accent); color:var(--qz-accent);
}
.studio-preview-page :is(.dialog-note,.dialog-image-wrap) { background:var(--qz-surface-muted); }
.studio-preview-page .dialog-close { min-height:44px; width:44px; box-shadow:none; }
.studio-preview-page .example-dialog { box-shadow:var(--qz-shadow-menu); }
.studio-preview-page .example-dialog::backdrop { background:var(--qz-overlay); }
.studio-preview-page .scope-points,.studio-preview-page .scope-points>div { border-color:var(--qz-line); }
.studio-preview-page .site-footer a { color:var(--qz-accent); font-weight:var(--qc-weight-ui); }
body.studio.public-studio input::file-selector-button { font-family:var(--qz-font-sans); font-weight:var(--qc-weight-ui); }
/* Selection and numeric UI remain consistent across both theme selectors. */
body ::selection { background:var(--qz-accent-soft); color:var(--qz-ink); }
body :is(input,textarea,[contenteditable="true"]) { caret-color:var(--qz-accent); }
:is(.ac-status,.result-line,.qz-category-count,.tab-count,.board-save-state) { font-variant-numeric:tabular-nums; }
html[data-theme="dark"] body.studio.public-studio :is(.public-nav,.board-editor,.public-dialog,.pixel-page,.batch-page,.pp-page,.local-video-page,.public-feedback) img[src*="/icons/"] { filter:brightness(0) invert(1); opacity:.8; }
html[data-theme="dark"] body.studio.public-studio button.primary img[src*="/icons/"] { filter:brightness(0); opacity:1; }
@media(max-width:800px) {
  html:root { --qc-page:1.5rem; }
  :is(.toolbox-hero .hero-title,.tool-modal-head h3,.workspace-shell .tool-name,.ac-hero h1) { font-size:var(--qc-page); }
}
@media(max-width:540px) { .tool-modal-panel { border-radius:0; } }

body.studio.public-studio select { font-size:var(--qc-input)!important; }

/* Keep editable mobile fields readable when the user chooses a smaller UI scale.
   Canvas content, color swatches, file buttons and non-text controls keep their own sizing. */
@media(max-width:760px) {
  body.studio.public-studio input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]):not([type="file"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="image"]),
body.studio.public-studio textarea,
body.studio.public-studio select
  { font-size:max(16px,var(--qc-input))!important; }
}


/* Preserved stylesheet: assets/css/toolbox-refinement.css */
/* Same system type, restrained surfaces and compact catalogue rhythm as home. */
.toolbox-hero { padding:28px 24px 24px; }
.toolbox-hero .hero-title { font-size:var(--qz-font-size-24); line-height:1.4; margin:0; }
.toolbox-hero .hero-sub { font-size:var(--qz-font-size-14); margin-top:8px; }
.toolbox-hero .hero-search { max-width:720px; height:56px; margin-top:16px; box-shadow:none; }
.toolbox-hero .toolbox-privacy { font-size:var(--qz-font-size-12); margin-top:8px; }
.toolbox-collections { display:flex; justify-content:center; flex-wrap:wrap; gap:4px 16px; margin:8px 0 0; font-size:var(--qz-font-size-14); }
.toolbox-collections a { display:inline-flex; align-items:center; min-height:44px; }
.toolbox-categories { padding:8px; border:0; border-right:1px solid var(--border); border-radius:0; background:transparent; }
.toolbox-categories .cat-tabs button { border-radius:var(--qz-radius-sm); }
.toolbox-categories .cat-tabs button[hidden] { display:none!important; }
.toolbox-categories .cat-tabs .tab-count { background:transparent; padding:0; color:var(--text-secondary); }
.toolbox-results-head { justify-content:flex-start; margin-bottom:8px; gap:8px; }
.toolbox-results-head>div { display:flex; align-items:baseline; flex-wrap:wrap; gap:8px; }
.toolbox-results-head h2 { font-size:var(--qz-font-size-16); line-height:1.5; }
.toolbox-result-status { margin:0; font-size:var(--qz-font-size-12); }
.toolbox-reset { margin-left:auto; }
.toolbox-views { display:flex; align-items:center; flex-wrap:wrap; gap:4px; margin:0 0 16px; }
.toolbox-views button { min-height:44px; padding:8px 14px; border:1px solid transparent; border-radius:var(--qz-radius-sm); font-family:var(--qz-font-sans); font-size:var(--qz-font-size-14); line-height:1.5; color:var(--text-secondary); background:transparent; cursor:pointer; }
.toolbox-views button:hover { background:var(--bg-secondary); color:var(--text); }
.toolbox-views button.is-on { background:var(--accent-soft); color:var(--accent); font-weight:500; }
.toolbox-results .mini-grid { gap:12px; }
.toolbox-results .mini-open { grid-template-columns:40px minmax(0,1fr); grid-template-rows:auto auto; gap:4px 12px; min-height:112px; padding:16px 48px 16px 16px; align-content:center; text-align:left; }
.toolbox-results .mini-icon { grid-column:1; grid-row:1/3; align-self:center; }
.toolbox-results .mini-name { grid-column:2; grid-row:1; padding:0; font-size:var(--qz-font-size-14); line-height:1.5; align-self:end; }
.toolbox-results .mini-desc { grid-column:2; grid-row:2; font-size:var(--qz-font-size-12); line-height:1.6; -webkit-line-clamp:2; align-self:start; }
.toolbox-results .mini-open::after { display:none; content:none; }
.toolbox-results .mini-star { top:6px; right:4px; min-width:44px; min-height:44px; }
.toolbox-results .mini-empty { border:0; padding:24px 0; background:transparent; }
@media(max-width:999px) {
 .toolbox-categories { border:1px solid var(--border); border-radius:var(--qz-radius-control); background:var(--card); padding:0; }
}
@media(max-width:599px) {
 .toolbox-hero { padding:20px 16px; }
 .toolbox-hero .hero-title { font-size:var(--qz-font-size-20); }
 .toolbox-hero .toolbox-privacy { text-align:center; }
 .toolbox-views { gap:2px; }
 .toolbox-views button { padding-inline:12px; }
 .toolbox-results .mini-open { min-height:100px; }
 .toolbox-results .mini-open .mini-desc { grid-column:2; grid-row:2; }
}


/* Preserved stylesheet: assets/shared/favorites.css */
/* Shared favorites disclosure, using existing system font and theme tokens. */
.qz-favorites-menu { position:relative; flex:0 0 auto; }
.qz-favorites-menu>summary { list-style:none; }
.qz-favorites-menu>summary::-webkit-details-marker { display:none; }
.qz-favorites-menu[open]>summary { background:var(--qz-surface-muted,#f0f2f5); color:var(--qz-ink,#17191d); }
.qz-favorites-panel { position:absolute; inset-block-start:calc(100% + 8px); inset-inline-end:0; z-index:45; width:240px; max-width:calc(100vw - 32px); padding:6px; border:1px solid var(--qz-line,#dce4ed); border-radius:12px; background:var(--qz-surface,#fcfcfd); box-shadow:0 10px 30px rgb(0 0 0 / .1); }
.qz-favorites-panel>a { display:flex; align-items:center; justify-content:space-between; gap:20px; min-height:44px; padding:8px 12px; border-radius:8px; color:var(--qz-ink,#17191d); font-family:inherit; font-size:var(--qc-ui,14px); line-height:1.5; text-decoration:none; }
.qz-favorites-panel>a:hover { background:var(--qz-surface-muted,#f0f2f5); }
.qz-favorites-panel>a:focus-visible,.qz-favorites-menu>summary:focus-visible { outline:2px solid var(--qz-accent,#2563eb); outline-offset:2px; }
[data-qz-favorite-count] { color:var(--qz-ink-secondary,#596273); font-variant-numeric:tabular-nums; }
.qz-mobile-favorites .qz-mobile-support-links>a { display:flex; justify-content:space-between; align-items:center; min-height:44px; gap:16px; }
@media(max-width:480px) { .qz-favorites-menu { display:none; } }