/* AI 工具箱共用样式 */
body.ai-tools-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 10%, rgba(216, 178, 101, .14), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(255, 255, 255, .86), transparent 30%),
    linear-gradient(135deg, #fffaf0 0%, #f4ead9 52%, #fffdf7 100%);
}

.ai-tools-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 20px auto 48px;
}

.ai-tools-hero {
  padding: 28px 30px;
  border: 1px solid rgba(199, 154, 75, .22);
  border-radius: 22px;
  background: rgba(255, 252, 245, .84);
  box-shadow: 0 18px 48px rgba(76, 49, 21, .07);
  margin-bottom: 18px;
}

.ai-tools-hero small {
  color: #b78333;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.ai-tools-hero h1 {
  margin: 10px 0 8px;
  font-family: var(--yc-serif, "Noto Serif SC", serif);
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
  color: #332417;
}

.ai-tools-hero p {
  margin: 0;
  max-width: 70ch;
  color: rgba(51, 36, 23, .66);
  font-size: 15px;
  line-height: 1.8;
}

.ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.ai-tool-card {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid rgba(199, 154, 75, .2);
  border-radius: 18px;
  background: rgba(255, 252, 245, .8);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 12px 30px rgba(76, 49, 21, .05);
  transition: transform .2s ease, box-shadow .2s ease;
}

.ai-tool-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(76, 49, 21, .1);
}

.ai-tool-card b {
  font-size: 20px;
  color: #332417;
}

.ai-tool-card span {
  color: rgba(51, 36, 23, .62);
  font-size: 14px;
  line-height: 1.7;
}

.ai-tool-card em {
  justify-self: start;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(199, 154, 75, .14);
  color: #8a5a1e;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.ai-tool-panel {
  padding: 22px;
  border: 1px solid rgba(199, 154, 75, .2);
  border-radius: 20px;
  background: rgba(255, 252, 245, .86);
  box-shadow: 0 14px 36px rgba(76, 49, 21, .06);
}

.ai-tool-panel h2 {
  margin: 0 0 8px;
  font-size: 22px;
  color: #332417;
}

.ai-tool-panel .hint {
  margin: 0 0 16px;
  color: rgba(51, 36, 23, .58);
  font-size: 13px;
  line-height: 1.7;
}

.ai-tool-back {
  display: inline-flex;
  margin-bottom: 12px;
  color: #8a5a1e;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.ai-tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.ai-tool-actions button,
.ai-tool-actions .btn {
  appearance: none;
  border: 0;
  border-radius: 12px;
  padding: 10px 16px;
  background: #2f2217;
  color: #fff8ea;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}

.ai-tool-actions button.secondary,
.ai-tool-actions .btn.secondary {
  background: rgba(255, 255, 255, .72);
  color: #6f4c22;
  border: 1px solid rgba(199, 154, 75, .28);
}

.ai-tool-field {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.ai-tool-field > span {
  color: #8a5a1e;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

.ai-tool-field textarea,
.ai-tool-field input[type="text"],
.ai-tool-field select {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid rgba(199, 154, 75, .28);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, .72);
  color: #332417;
  font: inherit;
  resize: vertical;
}

.ai-vt-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  gap: 16px;
}

.ai-vt-drop {
  min-height: 280px;
  border: 1px dashed rgba(199, 154, 75, .42);
  border-radius: 16px;
  background:
    radial-gradient(circle at 20% 20%, rgba(216, 178, 101, .12), transparent 46%),
    rgba(255, 255, 255, .55);
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 24px;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}

.ai-vt-drop:hover,
.ai-vt-drop.is-drag {
  border-color: rgba(143, 96, 30, .55);
  background: rgba(255, 252, 245, .95);
}

.ai-vt-drop.has-file {
  border-style: solid;
}

.ai-vt-drop.is-busy {
  opacity: .72;
  pointer-events: none;
}

.ai-vt-drop-inner {
  color: rgba(51, 36, 23, .58);
  font-size: 15px;
  text-align: center;
  line-height: 1.7;
}

.ai-vt-filename {
  color: #6f4c22;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
  word-break: break-all;
}

.ai-tool-status.is-error {
  color: #a33b2b;
}

.ai-link-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
  font-size: 14px;
}

.ai-link-table th,
.ai-link-table td {
  border-bottom: 1px solid rgba(199, 154, 75, .16);
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

.ai-link-table th {
  color: #8a5a1e;
  font-size: 12px;
  letter-spacing: .06em;
}

.ai-link-table a {
  color: #6f4c22;
  word-break: break-all;
}

.ai-icon-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
  gap: 16px;
}

.ai-icon-canvas-wrap {
  position: relative;
  min-height: 420px;
  border: 1px dashed rgba(199, 154, 75, .4);
  border-radius: 16px;
  background:
    linear-gradient(45deg, rgba(0,0,0,.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(0,0,0,.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(0,0,0,.04) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(0,0,0,.04) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  overflow: hidden;
}

.ai-icon-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 420px;
  cursor: crosshair;
}

.ai-icon-drop {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: rgba(51, 36, 23, .55);
  font-size: 15px;
  pointer-events: none;
}

.ai-icon-sizes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-icon-sizes label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.7);
  border: 1px solid rgba(199, 154, 75, .2);
  font-size: 13px;
}

.ai-tool-status {
  margin-top: 12px;
  color: #8a5a1e;
  font-size: 13px;
}

.ai-video-steps {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ai-video-steps li {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,.62);
  border: 1px solid rgba(199, 154, 75, .16);
  color: rgba(51, 36, 23, .72);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 860px) {
  .ai-tools-grid,
  .ai-icon-layout,
  .ai-vt-layout {
    grid-template-columns: 1fr;
  }
}