/* 词汇筛查测试样式 */
.vq-panel {
  margin: 16px 0;
  padding: 20px;
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 14px;
}

.vq-setup { text-align: center; padding: 20px 10px; }
.vq-setup h3 { margin: 0 0 8px; font-size: 18px; color: #1f2937; }
.vq-setup p { margin: 0 0 18px; font-size: 13px; color: #6b7280; }
.vq-setup select {
  padding: 8px 12px;
  font-size: 14px;
  border: 1px solid #d7dbe0;
  border-radius: 8px;
  margin-right: 10px;
}

.vq-head {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #6b7280;
  margin-bottom: 14px;
}
.vq-head #vqScore { color: #2563eb; font-weight: 600; }

.vq-word {
  text-align: center;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: .5px;
  color: #111827;
  margin: 10px 0 24px;
  word-break: keep-all;
}

.vq-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 760px;
  margin: 0 auto;
}
@media (max-width: 640px) { .vq-options { grid-template-columns: 1fr; } }

.vq-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  font-size: 14px;
  text-align: left;
  background: #fff;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  cursor: pointer;
  transition: all .15s;
}
.vq-option:hover:not(.disabled) { border-color: #4c8bf5; background: #f8faff; }
.vq-option .vq-key {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #4b5563;
  background: #f3f4f6;
  border-radius: 6px;
}
.vq-option .vq-text { flex: 1 1 auto; color: #374151; line-height: 1.5; }

.vq-option.disabled { cursor: default; }
.vq-option.correct {
  border-color: #16a34a;
  background: #f0fdf4;
}
.vq-option.correct .vq-key { background: #16a34a; color: #fff; }
.vq-option.wrong {
  border-color: #dc2626;
  background: #fef2f2;
}
.vq-option.wrong .vq-key { background: #dc2626; color: #fff; }

.vq-feedback {
  text-align: center;
  min-height: 22px;
  margin-top: 16px;
  font-size: 13px;
  color: #6b7280;
}

.vq-summary { text-align: center; padding: 20px 10px; }
.vq-big {
  font-size: 52px;
  font-weight: 800;
  color: #2563eb;
  line-height: 1.1;
  margin-bottom: 12px;
}
.vq-line { font-size: 14px; color: #4b5563; margin: 4px 0; }
.vq-ops { margin-top: 20px; display: flex; gap: 10px; justify-content: center; }

/* 题型选择 */
.vq-modes { margin: 10px 0 18px; }
.vq-modes select { padding: 8px 12px; font-size: 14px; border: 1px solid #d7dbe0; border-radius: 8px; }
.vq-mode-desc { font-size: 12px; color: #6b7280; margin-top: 8px; min-height: 18px; }

/* 题干区 */
#vqStage { text-align: center; margin: 12px 0 22px; }
.vq-meaning { font-size: 22px; font-weight: 600; color: #111827; line-height: 1.5; }
.vq-phonetic { font-size: 14px; color: #6b7280; font-family: "Times New Roman", serif; margin-top: 8px; }
.vq-play {
  padding: 16px 32px; font-size: 18px; background: #4c8bf5; color: #fff;
  border: none; border-radius: 12px; cursor: pointer;
}
.vq-play:hover { background: #3b74d4; }

/* 拼写输入 */
.vq-spell { max-width: 480px; margin: 0 auto; display: flex; gap: 10px; }
.vq-input {
  flex: 1; padding: 12px 16px; font-size: 18px; text-align: center;
  letter-spacing: 2px; border: 2px solid #d7dbe0; border-radius: 10px; outline: none;
}
.vq-input:focus { border-color: #4c8bf5; }
.vq-input.ok { border-color: #16a34a; background: #f0fdf4; }
.vq-input.bad { border-color: #dc2626; background: #fef2f2; }

/* 可视化 */
.viz-cards { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0 20px; }
.viz-card { flex: 1 1 120px; padding: 14px; background: #fff; border: 1px solid #e6e8eb; border-radius: 12px; text-align: center; }
.viz-num { font-size: 26px; font-weight: 800; color: #2563eb; }
.viz-label { font-size: 12px; color: #6b7280; margin-top: 4px; }
.viz-section { margin: 22px 0; }
.viz-section h3 { font-size: 15px; color: #374151; margin: 0 0 12px; }
.viz-bars { display: flex; align-items: flex-end; gap: 6px; height: 160px; padding: 10px 0; }
.viz-bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; }
.viz-bar-val { font-size: 10px; color: #6b7280; height: 14px; }
.viz-bar-track { width: 100%; flex: 1; display: flex; align-items: flex-end; }
.viz-bar-track i { display: block; width: 100%; background: linear-gradient(180deg,#60a5fa,#2563eb); border-radius: 4px 4px 0 0; min-height: 2px; transition: height .3s; }
.viz-bar-label { font-size: 10px; color: #9ca3af; margin-top: 6px; }
.viz-heat { display: flex; gap: 3px; }
.viz-heat-col { display: flex; flex-direction: column; gap: 3px; }
.viz-cell { width: 13px; height: 13px; border-radius: 3px; display: inline-block; }
.viz-cell.lv0 { background: #ebedf0; }
.viz-cell.lv1 { background: #c6e48b; }
.viz-cell.lv2 { background: #7bc96f; }
.viz-cell.lv3 { background: #239a3b; }
.viz-cell.lv4 { background: #196127; }
.viz-legend { font-size: 11px; color: #6b7280; margin-top: 10px; display: flex; align-items: center; gap: 4px; }