/* ========== 趋势雷达数据看板 - 样式表 ========== */

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1525;
  --bg-card: #141b2d;
  --bg-card-hover: #1a2238;
  --border-color: #1e293b;
  --border-light: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-purple: #8b5cf6;
  --color-up: #ef4444;
  --color-down: #22c55e;
  --color-flat: #94a3b8;
  --color-green: #22c55e;
  --color-yellow: #eab308;
  --color-red: #ef4444;
  --sidebar-width: 240px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  overflow: hidden;
}

/* ========== 侧边栏 ========== */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 100;
}

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h1 {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-header p {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.nav-menu {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.nav-section {
  padding: 8px 20px 4px;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.15s;
  color: var(--text-secondary);
  border-left: 3px solid transparent;
  font-size: 14px;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.nav-item.active {
  background: var(--bg-card);
  color: var(--accent-cyan);
  border-left-color: var(--accent-cyan);
}

.nav-item .nav-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.nav-item .nav-badge {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-card-hover);
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
}

/* ========== 主内容区 ========== */
.main-content {
  margin-left: var(--sidebar-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  height: 56px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}

.topbar-title {
  font-size: 16px;
  font-weight: 600;
}

.topbar-info {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.topbar-info .info-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.topbar-info .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
}

/* ========== 日期选择器 ========== */
.date-picker-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.date-selector {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-family: 'SF Mono', 'Consolas', monospace;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}

.date-selector:hover {
  border-color: var(--accent-cyan);
}

.date-selector:focus {
  border-color: var(--accent-cyan);
}

.date-selector option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.content-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

/* ========== 页面 ========== */
.page { display: none; }
.page.active { display: block; }

/* ========== 雷达总览卡片 ========== */
.radar-section {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: var(--border-light);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .title-icon {
  font-size: 18px;
}

/* ========== 状态标签 ========== */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.status-green { background: rgba(34,197,94,0.12); color: var(--color-green); }
.status-yellow { background: rgba(234,179,8,0.12); color: var(--color-yellow); }
.status-red { background: rgba(239,68,68,0.12); color: var(--color-red); }

/* ========== 数据表格 ========== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  padding: 10px 12px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table th:first-child { border-radius: 8px 0 0 0; }
.data-table th:last-child { border-radius: 0 8px 0 0; }

.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table tbody tr:hover {
  background: var(--bg-card-hover);
}

.data-table .num-up { color: var(--color-up); font-weight: 500; }
.data-table .num-down { color: var(--color-down); font-weight: 500; }
.data-table .num-flat { color: var(--color-flat); }

/* ========== 网格布局 ========== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ========== 指标卡片 ========== */
.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metric-card .metric-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.metric-card .metric-value {
  font-size: 24px;
  font-weight: 700;
  font-family: 'SF Mono', 'Consolas', monospace;
}

.metric-card .metric-change {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ========== 图表容器 ========== */
.chart-container {
  width: 100%;
  height: 320px;
}

.chart-container-sm {
  width: 100%;
  height: 240px;
}

.chart-container-lg {
  width: 100%;
  height: 400px;
}

/* ========== 评级卡片 ========== */
.rating-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.rating-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.rating-item .rating-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.rating-item .rating-reason {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== 观察重点 ========== */
.observation-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-cyan);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.observation-box .obs-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 8px;
}

.observation-box .obs-content {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== 热力图单元格 ========== */
.heatmap-cell {
  padding: 8px 12px;
  border-radius: 6px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s;
}

.heatmap-cell:hover { transform: scale(1.05); }

/* ========== 滚动条 ========== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
  .radar-section { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .sidebar { width: 60px; }
  .sidebar-header h1, .sidebar-header p, .nav-item span:not(.nav-icon), .nav-section, .sidebar-footer { display: none; }
  .main-content { margin-left: 60px; }
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.page.active > * {
  animation: fadeIn 0.3s ease;
}

/* ========== 分隔线 ========== */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: 20px 0;
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 12px;
  padding-left: 12px;
  border-left: 3px solid var(--accent-cyan);
}