:root {
  --primary: #6366f1;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --bg: #f8fafc;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --text: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
}

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

html {
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.screen {
  display: none;
  max-width: 28rem;
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
  min-height: 100dvh;
}

.screen.is-active {
  display: block;
}

.app-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.app-header h1 {
  font-size: 1.35rem;
  font-weight: 800;
  margin: 0 0 0.35rem;
  color: var(--primary);
  letter-spacing: -0.02em;
}

.app-header p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.15rem;
  border: 1px solid #e2e8f0;
}

.rules-list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.9rem;
  color: #334155;
}

.rules-list li {
  margin-bottom: 0.5rem;
}

.privacy-note {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.45;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow);
  transition:
    transform 0.12s ease,
    filter 0.12s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn--ghost {
  background: #e0e7ff;
  color: #3730a3;
  margin-top: 0.75rem;
}

.quiz-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.quiz-meta {
  flex: 1;
  min-width: 0;
}

.quiz-meta .q-index {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.quiz-meta .q-dim {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 700;
  margin-top: 0.15rem;
}

#progress-ring-host {
  flex-shrink: 0;
}

.q-text {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 0 0 1rem;
  color: #1e293b;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.option-btn {
  text-align: left;
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  border-radius: var(--radius);
  border: 2px solid #e2e8f0;
  background: #fff;
  cursor: pointer;
  color: #334155;
  transition:
    border-color 0.15s ease,
    background 0.15s ease;
}

.option-btn:disabled {
  cursor: default;
}

.option-btn--correct {
  border-color: var(--success);
  background: #ecfdf5;
  color: #065f46;
}

.option-btn--wrong {
  border-color: var(--error);
  background: #fef2f2;
  color: #991b1b;
}

.option-btn--neutral-wrong {
  opacity: 0.55;
}

.nav-next {
  margin-top: 1.25rem;
}

.result-hero {
  text-align: center;
  margin-bottom: 1.25rem;
}

.result-type {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0 0 0.5rem;
}

.result-desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.dim-grid {
  margin-top: 1rem;
}

.dim-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 0.65rem;
}

.dim-label {
  width: 4.5rem;
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 700;
  color: #475569;
}

.dim-bar-wrap {
  flex: 1;
  height: 0.55rem;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.dim-bar {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #818cf8, var(--primary));
  transition: width 0.5s ease;
}

.dim-val {
  width: 2.5rem;
  text-align: right;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
}

.advice-block {
  margin-top: 1.25rem;
  padding: 1rem;
  background: #eef2ff;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: #3730a3;
  border: 1px solid #c7d2fe;
}

.advice-block h3 {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
  font-weight: 800;
}

.advice-block p {
  margin: 0;
  line-height: 1.55;
}

.share-row {
  display: flex;
  gap: 0.65rem;
  margin-top: 1rem;
}

.share-row .btn {
  margin-top: 0;
  flex: 1;
}

.toast-local {
  position: fixed;
  left: 50%;
  bottom: 5rem;
  transform: translateX(-50%);
  padding: 0.5rem 1rem;
  background: #1e293b;
  color: #fff;
  font-size: 0.8rem;
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  z-index: 10001;
}

.toast-local.is-on {
  opacity: 1;
}

/* ---------- 16 型结果页 ---------- */

.rules-title {
  margin: 0 0 0.75rem;
  font-weight: 700;
  font-size: 0.95rem;
}

.result-card {
  padding: 1.5rem 1.15rem;
}

.result-code {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0 1.25rem;
}

.chip {
  padding: 0.35rem 0.75rem;
  background: #eef2ff;
  color: #4338ca;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid #c7d2fe;
}

.pain-block,
.path-block {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid #e2e8f0;
  background: #fbfbfd;
}

.pain-block h3,
.path-block h3 {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text);
}

.pain-block ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  color: #334155;
  line-height: 1.7;
}

.path-block ol {
  margin: 0 0 0.75rem;
  padding-left: 1.25rem;
  font-size: 0.85rem;
  color: #334155;
  line-height: 1.7;
}

.path-name {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
}

.path-expect {
  margin: 0;
  padding-top: 0.6rem;
  border-top: 1px dashed #c7d2fe;
  font-size: 0.8rem;
  color: #64748b;
}

/* ---------- Canvas 分享卡预览 ---------- */

.share-preview {
  max-width: 28rem;
  margin: 1rem auto 2rem;
  padding: 0 1rem;
}

.share-preview-wrap {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.25);
  background: #000;
}

.share-preview-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
}

.share-actions {
  display: flex;
  gap: 0.65rem;
  margin-top: 1rem;
}

.share-actions .btn {
  margin-top: 0;
  flex: 1;
  min-height: 44px;
}

/* ---------- 按钮点击热区保障 ≥ 44px ---------- */
.option-btn,
.btn {
  min-height: 44px;
}

/* hidden 属性在 .btn display:inline-flex 下需显式覆盖 */
[hidden] {
  display: none !important;
}