/* ============================================
   车维度 V4.2 UI Optimization — Common Styles
   色彩变量 / 字体 / 按钮 / 卡片 / 标签 / 表单
   ============================================ */

:root {
  /* ── 品牌色（111风格：珊瑚橙红系） ── */
  --brand-navy: #0F2B46;
  --brand-cyan: #00D4AA;
  --brand-purple: #7C3AED;

  /* ── UI 主色（珊瑚橙红系） ── */
  --primary: #C06040;
  --primary-hover: #A04830;
  --primary-light: #FBF0EB;
  --primary-border: #E8C0B0;

  /* ── 高亮辅助色（暖黄） ── */
  --accent-yellow: #F0B060;
  --accent-yellow-light: #FDF3E6;

  /* ── 语义色 ── */
  --success: #00A86B;
  --success-light: #ECFDF5;
  --success-border: #A7F3D0;
  --warning: #D97706;
  --warning-light: #FFFBEB;
  --warning-border: #FDE68A;
  --danger: #DC2626;
  --danger-light: #FEF2F2;
  --danger-border: #FECACA;

  /* ── 中性色（暖白底） ── */
  --bg: #F8F8F6;
  --card-bg: #FFFFFF;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --text: #101010;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;
  --text-inverse: #FFFFFF;

  /* ── 侧边栏（Admin） ── */
  --sidebar-bg: #0F172A;
  --sidebar-hover: rgba(255,255,255,0.06);
  --sidebar-active: rgba(192,96,64,0.15);
  --sidebar-text: #CBD5E1;
  --sidebar-text-dim: #64748B;

  /* ── 圆角 ── */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* ── 阴影 ── */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);

  /* ── 间距 ── */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
}

/* ── Reset ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-variant-numeric: tabular-nums;
}

/* ── 滚动条：使用系统默认，移除自定义样式 ── */

/* ── 链接 ── */
a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background-color 0.15s, border-color 0.15s, color 0.15s, opacity 0.15s;
  white-space: nowrap;
  letter-spacing: 0.3px;
}
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(192,96,64,0.15);
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn-secondary {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) {
  background: #B91C1C;
}

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover:not(:disabled) {
  background: #047857;
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 15px;
  border-radius: var(--radius-lg);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 10px;
}
.btn-ghost:hover:not(:disabled) {
  background: var(--border-light);
  color: var(--text);
}

/* ── 卡片 ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

/* ── 标签/Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  line-height: 1.6;
}
.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}
.badge-success {
  background: var(--success-light);
  color: var(--success);
}
.badge-warning {
  background: var(--warning-light);
  color: var(--warning);
}
.badge-danger {
  background: var(--danger-light);
  color: var(--danger);
}
.badge-gray {
  background: var(--border-light);
  color: var(--text-secondary);
}

/* 推荐等级标签 */
.rec-high {
  background: #F08060;
  color: #fff;
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.rec-mid {
  background: #E8A055;
  color: #fff;
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.rec-low {
  background: #D4A884;
  color: #fff;
  padding: 3px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ── 表单 ── */
.form-field {
  margin-bottom: 16px;
}
.form-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input::placeholder {
  color: var(--text-muted);
}
.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(192,96,64,0.1);
}
.form-input.error {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(220,38,38,0.08);
}
select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239CA3AF' d='M3 5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}

/* ── 表格 ── */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #fff;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 11px 16px;
  text-align: left;
  font-size: 13px;
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}
th {
  background: #F9FAFB;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}
tbody tr {
  transition: background-color 0.1s;
}
tbody tr:hover {
  background: #F9FAFB;
}
tr:last-child td {
  border-bottom: none;
}

/* ── 动画：仅保留交互瞬间动画，无 infinite ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes dotPulse {
  0%, 60%, 100% { opacity: 0.3; }
  30% { opacity: 1; }
}

.fade-up {
  animation: fadeUp 0.3s ease-out;
}

/* Loading spinner */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

/* 流式光标（打字机效果） */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--primary);
  margin-left: 2px;
  vertical-align: -2px;
  animation: cursorBlink 1s step-end infinite;
}
@keyframes cursorBlink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* ── 分隔线 ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ── 工具类 ── */
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.text-sm { font-size: 12px; }
.text-xs { font-size: 11px; }
.font-bold { font-weight: 700; }
.text-center { text-align: center; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.w-full { width: 100%; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }