/* ===== 能碳管理系统 v2 - 公共样式 ===== */
/* 风格: 精致专业深色 (Professional Dark) */

/* --- CSS Variables --- */
:root {
  /* 主色调 - 克制的蓝 */
  --color-primary: #5b8def;
  --color-primary-light: rgba(91, 141, 239, 0.08);
  --color-primary-dark: #4a7adb;
  --color-primary-hover: #7aa3f2;

  /* 功能色 */
  --color-cyan: #4ec9d4;
  --color-cyan-light: rgba(78, 201, 212, 0.08);
  --color-purple: #a78bfa;
  --color-purple-light: rgba(167, 139, 250, 0.08);
  --color-lime: #6ee7a0;
  --color-lime-light: rgba(110, 231, 160, 0.08);

  --color-success: #34d399;
  --color-success-light: rgba(52, 211, 153, 0.1);
  --color-warning: #f5a623;
  --color-warning-light: rgba(245, 166, 35, 0.1);
  --color-danger: #ef6b6b;
  --color-danger-light: rgba(239, 107, 107, 0.1);
  --color-info: #a78bfa;
  --color-info-light: rgba(167, 139, 250, 0.1);

  /* 文字层级 - 柔和 */
  --color-text-primary: #e2e8f0;
  --color-text-regular: #94a3b8;
  --color-text-secondary: #64748b;
  --color-text-placeholder: #475569;

  /* 背景系统 - 层次分明但不刺眼 */
  --color-border: rgba(51, 65, 85, 0.5);
  --color-border-light: rgba(51, 65, 85, 0.25);
  --color-bg-page: #0f1117;
  --color-bg-card: rgba(17, 24, 39, 0.8);
  --color-bg-card-solid: #111827;
  --color-bg-hover: rgba(91, 141, 239, 0.04);
  --color-bg-sidebar: #0b0e14;
  --color-bg-sidebar-hover: rgba(255, 255, 255, 0.03);
  --color-bg-sidebar-active: rgba(91, 141, 239, 0.1);
  --color-bg-input: rgba(15, 23, 42, 0.9);

  /* 字体 - 无衬线，清晰 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 16px;
  --font-size-xl: 19px;
  --font-size-xxl: 24px;
  --font-size-display: 28px;

  /* 圆角 - 一致 */
  --radius-sm: 4px;
  --radius-base: 6px;
  --radius-lg: 8px;
  --radius-xl: 10px;

  /* 阴影 - 克制 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-base: 0 1px 3px rgba(0, 0, 0, 0.25), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-base: 12px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-xxl: 32px;

  /* 布局 */
  --sidebar-width: 220px;
  --header-height: 52px;

  /* 过渡 - 不拖沓 */
  --transition: all 0.15s ease;
  --transition-fast: all 0.1s ease;

  /* 玻璃效果 - 保留但减弱 */
  --glass-border: 1px solid var(--color-border);
  --glass-blur: blur(16px);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-size-base); }
body {
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background: var(--color-bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; }

/* --- Layout Shell --- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  color: #fff;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
  transition: var(--transition);
  border-right: 1px solid var(--color-border);
}
.main-wrap { margin-left: var(--sidebar-width); flex: 1; min-height: 100vh; display: flex; flex-direction: column; }
.main-header {
  height: var(--header-height);
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: var(--glass-blur);
  border-bottom: var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  position: sticky;
  top: 0;
  z-index: 50;
}
.main-content { flex: 1; padding: var(--spacing-lg); overflow: hidden; }

/* --- Sidebar Menu --- */
.sidebar-logo {
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}
.sidebar-logo .logo-icon {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-cyan));
  border-radius: var(--radius-base);
  display: flex; align-items: center; justify-content: center;
  margin-right: var(--spacing-sm);
  font-weight: bold;
  font-size: var(--font-size-sm);
  color: #fff;
}
.sidebar-logo .logo-text {
  font-size: var(--font-size-lg);
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--color-text-primary);
}

.menu-group-title {
  padding: var(--spacing-base) var(--spacing-lg) var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--color-text-placeholder);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.menu-item {
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-lg);
  height: 40px;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: var(--transition);
  border-left: 2px solid transparent;
  font-size: var(--font-size-sm);
}
.menu-item:hover { background: var(--color-bg-sidebar-hover); color: var(--color-text-regular); }
.menu-item.active {
  background: var(--color-bg-sidebar-active);
  color: var(--color-text-primary);
  border-left-color: var(--color-primary);
  font-weight: 500;
}
.menu-item .menu-icon { width: 18px; margin-right: var(--spacing-sm); text-align: center; font-size: var(--font-size-base); flex-shrink: 0; }
.menu-item .menu-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.menu-sub { padding-left: 20px; }
.menu-sub .menu-item { height: 36px; font-size: var(--font-size-xs); }

/* --- Header --- */
.header-left { display: flex; align-items: center; gap: var(--spacing-md); }
.header-breadcrumb { display: flex; align-items: center; gap: var(--spacing-sm); font-size: var(--font-size-sm); color: var(--color-text-secondary); }
.header-breadcrumb span { color: var(--color-text-primary); font-weight: 500; }
.header-right { display: flex; align-items: center; gap: var(--spacing-lg); }
.header-user { display: flex; align-items: center; gap: var(--spacing-sm); font-size: var(--font-size-sm); color: var(--color-text-regular); cursor: pointer; }
.header-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
}
.header-badge { position: relative; cursor: pointer; font-size: 16px; color: var(--color-text-secondary); }
.header-badge .badge-dot {
  position: absolute; top: -2px; right: -2px;
  width: 7px; height: 7px;
  background: var(--color-danger);
  border-radius: 50%;
  border: 1.5px solid var(--color-bg-card-solid);
}

/* --- Page Container --- */
.page-container { border-radius: 0; }
.page-header {
  padding: var(--spacing-md) var(--spacing-xl);
  border-bottom: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page-title { font-size: var(--font-size-xl); font-weight: 700; color: var(--color-text-primary); }
.page-title-sub { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin-left: var(--spacing-sm); }
.page-body { padding: var(--spacing-lg) var(--spacing-xl); }

/* --- Filter Bar --- */
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--spacing-md); align-items: center; margin-bottom: var(--spacing-lg); }
.filter-item { display: flex; align-items: center; gap: var(--spacing-sm); }
.filter-item label { font-size: var(--font-size-sm); color: var(--color-text-regular); white-space: nowrap; }
.filter-input, .filter-select {
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 0 var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  outline: none;
  transition: var(--transition);
  min-width: 160px;
}
.filter-input:focus, .filter-select:focus { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(91, 141, 239, 0.15); }
.filter-input::placeholder { color: var(--color-text-placeholder); }
select.filter-select option { background: var(--color-bg-card-solid); color: var(--color-text-primary); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 32px; padding: 0 var(--spacing-md);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm); font-weight: 600;
  cursor: pointer; border: 1px solid transparent;
  transition: var(--transition);
  gap: 4px; white-space: nowrap;
  user-select: none;
}
.btn:hover { filter: brightness(1.1); }
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: transparent;
}
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-border); }
.btn-outline:hover { background: var(--color-primary-light); border-color: var(--color-primary); }
.btn-success { background: var(--color-success); color: #fff; border-color: transparent; }
.btn-danger { background: var(--color-danger); color: #fff; border-color: transparent; }
.btn-danger-outline { background: transparent; color: var(--color-danger); border-color: rgba(239, 107, 107, 0.3); }
.btn-ghost { background: transparent; color: var(--color-text-regular); border-color: var(--color-border); }
.btn-ghost:hover { color: var(--color-primary); border-color: var(--color-primary); background: var(--color-primary-light); }
.btn-text { background: transparent; color: var(--color-primary); border: none; padding: 0; height: auto; }
.btn-text:hover { color: var(--color-primary-hover); }
.btn-sm { height: 28px; padding: 0 var(--spacing-sm); font-size: var(--font-size-xs); }
.btn-lg { height: 38px; padding: 0 var(--spacing-xl); font-size: var(--font-size-base); }
.btn:disabled { opacity: 0.35; cursor: not-allowed; filter: none; }
.btn-group { display: flex; gap: var(--spacing-sm); }

/* --- Toolbar --- */
.toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--spacing-md); }
.toolbar-left { display: flex; align-items: center; gap: var(--spacing-sm); }
.toolbar-right { display: flex; align-items: center; gap: var(--spacing-sm); }

/* --- Table --- */
.table-wrap { overflow-x: auto; border: var(--glass-border); border-radius: var(--radius-lg); }
.data-table { width: 100%; border-collapse: collapse; font-size: var(--font-size-sm); }
.data-table thead th {
  background: rgba(255, 255, 255, 0.02);
  padding: 10px var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  color: var(--color-text-regular);
  white-space: nowrap;
  text-align: left;
  font-size: var(--font-size-sm);
  letter-spacing: 0.2px;
}
.data-table tbody td {
  padding: 10px var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-primary);
}
.data-table tbody tr:hover { background: var(--color-bg-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table .col-actions { white-space: nowrap; }

/* --- Pagination --- */
.pagination {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.pagination-info { display: flex; align-items: center; gap: var(--spacing-sm); }
.pagination-pages { display: flex; align-items: center; gap: 4px; }
.page-btn {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  cursor: pointer;
  background: transparent;
  color: var(--color-text-regular);
  transition: var(--transition);
  font-size: var(--font-size-sm);
}
.page-btn:hover { color: var(--color-primary); border-color: var(--color-primary); background: var(--color-primary-light); }
.page-btn.active { background: var(--color-primary); color: #fff; border-color: transparent; }
.page-btn:disabled { opacity: 0.25; cursor: not-allowed; }

/* --- Cards --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition);
}
.card:hover { border-color: rgba(91, 141, 239, 0.2); }
.card-title { font-size: var(--font-size-md); font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--spacing-base); }
.card-subtitle { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin-bottom: var(--spacing-base); }

/* --- KPI Cards --- */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-md); margin-bottom: var(--spacing-lg); }
.kpi-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.35s ease both;
}
.kpi-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
  opacity: 0;
  transition: opacity 0.2s;
}
.kpi-card:nth-child(1) { animation-delay: 0.03s; }
.kpi-card:nth-child(2) { animation-delay: 0.06s; }
.kpi-card:nth-child(3) { animation-delay: 0.09s; }
.kpi-card:nth-child(4) { animation-delay: 0.12s; }
.kpi-card:nth-child(5) { animation-delay: 0.15s; }
.kpi-card:nth-child(6) { animation-delay: 0.18s; }
.kpi-card:hover { border-color: rgba(91, 141, 239, 0.25); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.kpi-card:hover::before { opacity: 1; }

.kpi-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-size-xl);
  flex-shrink: 0;
}
.kpi-icon.blue { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); }
.kpi-icon.green { background: rgba(52, 211, 153, 0.1); color: var(--color-success); }
.kpi-icon.orange { background: rgba(245, 166, 35, 0.1); color: var(--color-warning); }
.kpi-icon.red { background: rgba(239, 107, 107, 0.1); color: var(--color-danger); }
.kpi-icon.cyan { background: rgba(78, 201, 212, 0.1); color: var(--color-cyan); }
.kpi-icon.purple { background: rgba(167, 139, 250, 0.1); color: var(--color-purple); }

.kpi-content { flex: 1; }
.kpi-label { font-size: var(--font-size-xs); color: var(--color-text-secondary); margin-bottom: 2px; }
.kpi-value { font-size: var(--font-size-xxl); font-weight: 700; color: #fff; line-height: 1.2; }
.kpi-value .unit { font-size: var(--font-size-xs); font-weight: 400; color: var(--color-text-secondary); margin-left: 2px; }
.kpi-trend { font-size: var(--font-size-xs); margin-top: 2px; }
.kpi-trend.up { color: var(--color-danger); }
.kpi-trend.down { color: var(--color-success); }

/* --- Chart Container --- */
.chart-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.chart-grid .chart-full { grid-column: 1 / -1; }
.chart-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  animation: fadeInUp 0.4s ease both;
  animation-delay: 0.1s;
}
.chart-card:hover { border-color: rgba(91, 141, 239, 0.2); }
.chart-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
}
.chart-card-title { font-size: var(--font-size-base); font-weight: 600; color: var(--color-text-primary); }
.chart-card-actions { display: flex; align-items: center; gap: var(--spacing-sm); }
.chart-card-body { padding: var(--spacing-md); height: 320px; }
.chart-card-body.chart-sm { height: 240px; }
.chart-card-body.chart-lg { height: 400px; }

/* --- Tab --- */
.tab-group { display: flex; border-bottom: 1px solid var(--color-border); margin-bottom: var(--spacing-lg); }
.tab-item {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.tab-item:hover { color: var(--color-text-regular); }
.tab-item.active { color: var(--color-primary); border-bottom-color: var(--color-primary); font-weight: 500; }

/* --- Status Tags --- */
.tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  line-height: 20px;
}
.tag-primary { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); border: 1px solid rgba(91, 141, 239, 0.2); }
.tag-success { background: rgba(52, 211, 153, 0.1); color: var(--color-success); border: 1px solid rgba(52, 211, 153, 0.2); }
.tag-warning { background: rgba(245, 166, 35, 0.1); color: var(--color-warning); border: 1px solid rgba(245, 166, 35, 0.2); }
.tag-danger { background: rgba(239, 107, 107, 0.1); color: var(--color-danger); border: 1px solid rgba(239, 107, 107, 0.2); }
.tag-info { background: rgba(167, 139, 250, 0.1); color: var(--color-purple); border: 1px solid rgba(167, 139, 250, 0.2); }
.tag-default { background: rgba(255, 255, 255, 0.03); color: var(--color-text-secondary); border: 1px solid var(--color-border); }

/* --- Modal / Drawer --- */
.modal-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none; align-items: center; justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--color-bg-card-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  width: 560px; max-width: 90vw; max-height: 80vh;
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn {
  from { transform: translateY(-12px) scale(0.97); opacity: 0; }
  to { transform: translateY(0) scale(1); opacity: 1; }
}
.modal-lg { width: 720px; }
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}
.modal-title { font-size: var(--font-size-lg); font-weight: 700; color: var(--color-text-primary); }
.modal-close {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--color-text-secondary);
  border-radius: var(--radius-base);
  transition: var(--transition);
  font-size: var(--font-size-md);
}
.modal-close:hover { background: var(--color-danger-light); color: var(--color-danger); }
.modal-body { padding: var(--spacing-lg); overflow-y: auto; flex: 1; }
.modal-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: flex-end; gap: var(--spacing-sm);
}

.drawer-overlay {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
}
.drawer-overlay.show { display: block; }
.drawer {
  position: fixed; top: 0; right: -560px;
  width: 560px; height: 100%;
  background: var(--color-bg-card-solid);
  border-left: 1px solid var(--color-border);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
  z-index: 1001;
  transition: right 0.25s ease;
  display: flex; flex-direction: column;
}
.drawer-overlay.show .drawer { right: 0; }
.drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}
.drawer-body { flex: 1; overflow-y: auto; padding: var(--spacing-lg); }

/* --- Form --- */
.form-group { margin-bottom: var(--spacing-md); }
.form-label { display: block; font-size: var(--font-size-sm); font-weight: 600; color: var(--color-text-regular); margin-bottom: var(--spacing-xs); }
.form-label .required { color: var(--color-danger); margin-right: 2px; }
.form-control {
  width: 100%; height: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 0 var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  outline: none;
  transition: var(--transition);
  font-family: inherit;
}
.form-control:focus { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(91, 141, 239, 0.15); }
.form-control::placeholder { color: var(--color-text-placeholder); }
textarea.form-control { height: auto; min-height: 80px; padding: var(--spacing-sm); resize: vertical; }
select.form-control { cursor: pointer; }
select.form-control option { background: var(--color-bg-card-solid); color: var(--color-text-primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-md); }
.form-hint { font-size: var(--font-size-xs); color: var(--color-text-placeholder); margin-top: 4px; }

/* --- Empty / Loading / Error State --- */
.state-container { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: var(--spacing-xxl); min-height: 200px; }
.state-icon { font-size: 40px; margin-bottom: var(--spacing-md); opacity: 0.3; }
.state-text { font-size: var(--font-size-base); color: var(--color-text-secondary); margin-bottom: var(--spacing-sm); }
.state-desc { font-size: var(--font-size-sm); color: var(--color-text-placeholder); margin-bottom: var(--spacing-md); }

/* --- Tree --- */
.tree-container {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm);
  overflow-y: auto;
  background: rgba(15, 23, 42, 0.4);
}
.tree-node {
  display: flex; align-items: center;
  padding: 6px var(--spacing-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-size: var(--font-size-sm);
  color: var(--color-text-regular);
}
.tree-node:hover { background: var(--color-bg-hover); color: var(--color-text-primary); }
.tree-node.active { background: rgba(91, 141, 239, 0.08); color: var(--color-primary); }
.tree-toggle { width: 16px; text-align: center; margin-right: var(--spacing-xs); color: var(--color-text-placeholder); cursor: pointer; }
.tree-icon { margin-right: var(--spacing-sm); color: var(--color-text-secondary); }
.tree-children { padding-left: 20px; }

/* --- Progress --- */
.progress-bar { height: 6px; background: rgba(255, 255, 255, 0.04); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; transition: width 0.6s ease; }
.progress-fill.blue { background: var(--color-primary); }
.progress-fill.green { background: var(--color-success); }
.progress-fill.orange { background: var(--color-warning); }
.progress-fill.red { background: var(--color-danger); }

/* --- Split Layout (Tree + Table) --- */
.split-layout { display: flex; gap: var(--spacing-lg); height: calc(100vh - 200px); }
.split-left { width: 260px; flex-shrink: 0; }
.split-right { flex: 1; overflow: auto; }

/* --- Statistic Row --- */
.stat-row { display: flex; gap: var(--spacing-xl); margin-bottom: var(--spacing-lg); }
.stat-item { flex: 1; }
.stat-item .stat-label { font-size: var(--font-size-xs); color: var(--color-text-secondary); }
.stat-item .stat-value { font-size: var(--font-size-xxl); font-weight: 700; color: #fff; margin-top: 2px; }

/* --- Tabs (pill style) --- */
.tab-pills { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-md); }
.tab-pill {
  padding: 4px 12px; border-radius: 14px;
  font-size: var(--font-size-xs);
  cursor: pointer;
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.tab-pill:hover { color: var(--color-primary); border-color: rgba(91, 141, 239, 0.3); }
.tab-pill.active { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); border-color: rgba(91, 141, 239, 0.3); }

/* --- Notification / Toast --- */
.toast-container { position: fixed; top: 16px; right: 16px; z-index: 2000; display: flex; flex-direction: column; gap: var(--spacing-sm); }
.toast {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-md);
  animation: slideIn 0.25s ease;
  min-width: 220px;
  display: flex; align-items: center; gap: var(--spacing-sm);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
}
.toast-success { background: rgba(52, 211, 153, 0.1); color: var(--color-success); border-color: rgba(52, 211, 153, 0.2); }
.toast-error { background: rgba(239, 107, 107, 0.1); color: var(--color-danger); border-color: rgba(239, 107, 107, 0.2); }
.toast-warning { background: rgba(245, 166, 35, 0.1); color: var(--color-warning); border-color: rgba(245, 166, 35, 0.2); }
.toast-info { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); border-color: rgba(91, 141, 239, 0.2); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* --- 入场动画 --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- 告警脉冲动画（减弱） --- */
@keyframes pulse-danger {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 107, 107, 0.3); }
  50% { box-shadow: 0 0 0 4px rgba(239, 107, 107, 0); }
}
.tag-danger.pulse { animation: pulse-danger 2s ease-in-out infinite; }

/* --- Responsive --- */
@media (max-width: 1400px) {
  .chart-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
}
@media (max-width: 1200px) {
  .form-row { grid-template-columns: 1fr; }
}

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(100, 116, 139, 0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(100, 116, 139, 0.35); }

/* --- Utility --- */
.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.fw-bold { font-weight: 600; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.gap-sm { gap: var(--spacing-sm); }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hidden { display: none !important; }

/* --- 快捷入口网格 (首页用) --- */
.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}
.shortcut-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.shortcut-card:hover {
  background: var(--color-bg-hover);
  border-color: rgba(91, 141, 239, 0.2);
  transform: translateY(-1px);
}
.shortcut-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}
.shortcut-icon.blue { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); }
.shortcut-icon.green { background: rgba(52, 211, 153, 0.1); color: var(--color-success); }
.shortcut-icon.orange { background: rgba(245, 166, 35, 0.1); color: var(--color-warning); }
.shortcut-icon.cyan { background: rgba(78, 201, 212, 0.1); color: var(--color-cyan); }
.shortcut-label { font-size: var(--font-size-sm); font-weight: 500; color: var(--color-text-primary); }
.shortcut-desc { font-size: var(--font-size-xs); color: var(--color-text-secondary); }

/* --- 告警表格 (首页用) --- */
.alert-table-wrap { padding: 0 var(--spacing-md) var(--spacing-md); }
.alert-table { width: 100%; border-collapse: collapse; font-size: var(--font-size-sm); }
.alert-table thead th {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: var(--font-size-xs);
  text-align: left;
}
.alert-table tbody td {
  padding: var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-primary);
}
.alert-table tbody tr:last-child td { border-bottom: none; }
.alert-table tbody tr:hover { background: var(--color-bg-hover); }

/* --- 复选框样式修正 --- */
input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 15px; height: 15px;
  cursor: pointer;
}
input[type="date"] {
  color-scheme: dark;
}

/* --- v3 新增样式 --- */
/* Tab Pane */
.tab-pane { display: block; }
.tab-pane.hidden { display: none !important; }

/* 筛选栏按钮组 */
.filter-actions { display: flex; gap: var(--spacing-sm); margin-left: auto; }

/* 表格操作列 */
.table-actions { display: flex; gap: var(--spacing-xs); flex-wrap: wrap; }
.table-actions .btn-text { padding: 2px 4px; }

/* 空状态 */
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--spacing-xxl); color: var(--color-text-placeholder);
}
.empty-state-icon { font-size: 48px; margin-bottom: var(--spacing-md); opacity: 0.3; }
.empty-state-text { font-size: var(--font-size-sm); }

/* 详情列表 */
.detail-list { display: flex; flex-direction: column; gap: var(--spacing-base); }
.detail-item { display: flex; gap: var(--spacing-md); }
.detail-label { width: 120px; flex-shrink: 0; color: var(--color-text-secondary); font-size: var(--font-size-sm); }
.detail-value { flex: 1; color: var(--color-text-primary); font-size: var(--font-size-sm); word-break: break-all; }

/* 分割线 */
.divider { height: 1px; background: var(--color-border-light); margin: var(--spacing-md) 0; }

/* 抽屉详情 */
.drawer-section-title {
  font-size: var(--font-size-base); font-weight: 600; color: var(--color-text-primary);
  margin-bottom: var(--spacing-base); display: flex; align-items: center; gap: var(--spacing-sm);
}
.drawer-section-title::before {
  content: ''; width: 3px; height: 14px; background: var(--color-primary); border-radius: 2px;
}

/* 日志列表 */
.log-list { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.log-item {
  padding: var(--spacing-sm) var(--spacing-base); background: rgba(255,255,255,0.02);
  border-radius: var(--radius-base); border: 1px solid var(--color-border-light);
}
.log-item-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.log-item-title { font-size: var(--font-size-sm); font-weight: 500; color: var(--color-text-primary); }
.log-item-time { font-size: var(--font-size-xs); color: var(--color-text-placeholder); }
.log-item-content { font-size: var(--font-size-xs); color: var(--color-text-secondary); }

/* 确认对话框增强 */
.confirm-modal .modal { width: 400px; }
.confirm-icon {
  width: 48px; height: 48px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin: 0 auto var(--spacing-md);
}
.confirm-icon.warning { background: rgba(245, 166, 35, 0.1); color: var(--color-warning); }
.confirm-icon.danger { background: rgba(239, 107, 107, 0.1); color: var(--color-danger); }
.confirm-icon.info { background: rgba(91, 141, 239, 0.1); color: var(--color-primary); }
.confirm-message { text-align: center; font-size: var(--font-size-base); color: var(--color-text-regular); }

/* 趋势文本 */
.trend-up { color: var(--color-danger); }
.trend-down { color: var(--color-success); }
.trend-neutral { color: var(--color-text-secondary); }

/* 页面内容最小高度 */
.page-body { min-height: calc(100vh - 200px); }

/* 模态框层级修正 */
.modal-overlay { z-index: 1000 !important; }
.drawer-overlay { z-index: 1000 !important; }
.toast-container { z-index: 2000 !important; }

/* 筛选栏响应式 */
@media (max-width: 1200px) {
  .filter-bar { flex-direction: column; align-items: flex-start; }
  .filter-actions { margin-left: 0; width: 100%; justify-content: flex-end; }
}

/* ===== 公共组件样式（v3 能源模块提取） ===== */

/* --- 空间树组件 .space-tree --- */
.space-tree {
  background: var(--color-bg-card-solid);
  border-radius: var(--radius-base);
  padding: var(--spacing-xs) 0;
  user-select: none;
}
.space-tree .tree-row {
  display: flex; align-items: center;
  padding: 6px var(--spacing-sm);
  cursor: pointer;
  transition: var(--transition);
  font-size: var(--font-size-sm);
  color: var(--color-text-regular);
  position: relative;
  border-radius: var(--radius-sm);
}
.space-tree .tree-row:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}
.space-tree .tree-row.selected {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}
.space-tree .tree-row.selected::before {
  content: '';
  position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 3px;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
}
.space-tree .tree-checkbox {
  width: 14px; height: 14px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  margin-right: var(--spacing-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  background: transparent;
  transition: var(--transition);
}
.space-tree .tree-row.selected .tree-checkbox {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.space-tree .tree-row.selected .tree-checkbox::after {
  content: '';
  width: 6px; height: 3px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: rotate(-45deg);
  margin-top: -1px;
}
.space-tree .tree-expand {
  width: 16px; text-align: center;
  margin-right: var(--spacing-xs);
  color: var(--color-text-placeholder);
  font-size: var(--font-size-xs);
  flex-shrink: 0;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.space-tree .tree-expand.expanded {
  transform: rotate(90deg);
}
.space-tree .tree-node-icon {
  margin-right: var(--spacing-sm);
  font-size: var(--font-size-base);
  flex-shrink: 0;
}
.space-tree .tree-children {
  padding-left: 20px;
  display: none;
}
.space-tree .tree-children.expanded {
  display: block;
}

/* --- 时段选择器 .time-period-selector --- */
.time-period-selector .time-tabs {
  display: flex;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-base);
  border: 1px solid var(--color-border);
  overflow: hidden;
}
.time-period-selector .time-tab {
  flex: 1;
  padding: var(--spacing-sm) 0;
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border: none; background: transparent;
}
.time-period-selector .time-tab:hover { color: var(--color-text-regular); }
.time-period-selector .time-tab.active {
  background: var(--color-primary);
  color: #fff;
  font-weight: 500;
}
.time-period-selector .period-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}
.time-period-selector .period-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-bottom: 2px;
}
.time-period-selector .period-input {
  height: 32px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 0 var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  outline: none;
  transition: var(--transition);
  width: 100%;
}
.time-period-selector .period-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(91, 141, 239, 0.15);
}

/* --- 模糊查询下拉 .searchable-select --- */
.searchable-select {
  position: relative;
}
.searchable-select .search-input {
  width: 100%; box-sizing: border-box;
  height: 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: 0 var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  background: var(--color-bg-input);
  outline: none;
  transition: var(--transition);
  font-family: inherit;
}
.searchable-select .search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(91, 141, 239, 0.15);
}
.searchable-select .search-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  z-index: 100;
  background: var(--color-bg-card-solid);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  max-height: 240px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}
.searchable-select .search-dropdown.show { display: block; }
.searchable-select .search-list { padding: 4px; }
.searchable-select .search-item {
  padding: 8px 12px;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.searchable-select .search-item:hover,
.searchable-select .search-item.active {
  background: var(--color-primary-light);
  color: #fff;
}
.searchable-select .search-empty {
  padding: 12px;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  text-align: center;
}

/* --- 设备卡片网格 .device-card-grid 与 .device-card --- */
.device-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}
@media (max-width: 1200px) {
  .device-card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .device-card-grid { grid-template-columns: 1fr; }
}
.device-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.device-card:hover {
  border-color: rgba(91, 141, 239, 0.25);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.device-card-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: var(--spacing-md);
}
.device-card-name {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text-primary);
}
.device-card-space {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-top: 2px;
}
.device-card-tags {
  display: flex; gap: var(--spacing-xs); flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}
.energy-tag {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 8px; border-radius: 10px;
  font-size: var(--font-size-xs); font-weight: 500;
  border: 1px solid transparent;
}
.energy-tag.electric {
  background: rgba(91, 141, 239, 0.1); color: var(--color-primary); border-color: rgba(91, 141, 239, 0.2);
}
.energy-tag.water {
  background: rgba(78, 201, 212, 0.1); color: var(--color-cyan); border-color: rgba(78, 201, 212, 0.2);
}
.energy-tag.gas {
  background: rgba(245, 166, 35, 0.1); color: var(--color-warning); border-color: rgba(245, 166, 35, 0.2);
}
.device-type-tag {
  display: inline-flex; align-items: center;
  padding: 2px 8px; border-radius: 10px;
  font-size: var(--font-size-xs); font-weight: 500;
  background: rgba(255,255,255,0.03); color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.device-card-metric {
  display: flex; align-items: baseline; gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.metric-value {
  font-size: var(--font-size-xxl); font-weight: 700; color: #fff; line-height: 1.2;
}
.metric-label {
  font-size: var(--font-size-xs); color: var(--color-text-secondary);
}
.metric-unit {
  font-size: var(--font-size-xs); color: var(--color-text-secondary); margin-left: 2px;
}
.device-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--spacing-sm);
}

/* --- 详情弹窗增强 .detail-modal --- */
.detail-modal .modal-kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
@media (max-width: 600px) {
  .detail-modal .modal-kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
.detail-modal .trend-chart-wrap {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}
.detail-modal .trend-chart-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--spacing-md);
}
.detail-modal .trend-chart-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}
.detail-modal .trend-chart {
  height: 260px;
}
.detail-modal .history-table-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  display: flex; align-items: center; gap: var(--spacing-sm);
}
.detail-modal .history-table-title::before {
  content: ''; width: 3px; height: 14px; background: var(--color-primary); border-radius: 2px;
}
.detail-modal .status-dot {
  width: 7px; height: 7px; border-radius: 50%; display: inline-block; margin-right: 4px;
}
.detail-modal .status-dot.normal { background: var(--color-success); }
.detail-modal .status-dot.warning { background: var(--color-warning); }
.detail-modal .status-dot.error { background: var(--color-danger); }

/* --- KPI小卡片 .kpi-mini --- */
.kpi-mini {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  padding: var(--spacing-md);
  text-align: center;
  transition: var(--transition);
}
.kpi-mini:hover { border-color: rgba(91, 141, 239, 0.2); }
.kpi-mini .kpi-mini-label {
  font-size: var(--font-size-xs); color: var(--color-text-secondary); margin-bottom: 4px;
}
.kpi-mini .kpi-mini-value {
  font-size: var(--font-size-lg); font-weight: 700; color: var(--color-text-primary);
}
.kpi-mini .kpi-mini-unit {
  font-size: var(--font-size-xs); color: var(--color-text-secondary); margin-left: 2px;
}

/* --- Tab切页增强 .tab-group-underline --- */
.tab-group-underline {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}
.tab-group-underline .tab-item {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  margin-bottom: -1px;
}
.tab-group-underline .tab-item:hover { color: var(--color-text-regular); }
.tab-group-underline .tab-item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 500;
}

/* ===== 页面类型标记类 (Page Type Markers) ===== */

/* --- 列表功能类界面 .page-type-list --- */
.page-type-list {
  --page-layout: list;
}
.page-type-list .chart-grid,
.page-type-list .chart-card,
.page-type-list .kpi-grid {
  display: none !important;
}
.page-type-list .page-body {
  min-height: calc(100vh - 200px);
}
.page-type-list .split-layout {
  height: calc(100vh - 280px);
}

/* --- 图表统计分析类界面 .page-type-chart --- */
.page-type-chart {
  --page-layout: chart;
}
.page-type-chart .modal-form-wrapper,
.page-type-chart .config-panel,
.page-type-chart .drawer .form-group:not(.filter-group) {
  display: none !important;
}
.page-type-chart .toolbar-right .btn-primary:not(.btn-export):not(.btn-refresh) {
  display: none !important;
}
.page-type-chart .table-actions .btn-text:not(.btn-view):not(.btn-detail) {
  display: none !important;
}

/* --- 特殊界面 .page-type-special --- */
.page-type-special {
  --page-layout: special;
}

/* ===== 布局辅助类 (Layout Helpers) ===== */

/* 单列布局 */
.layout-single-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

/* 双列布局 */
.layout-two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}
@media (max-width: 1400px) {
  .layout-two-column {
    grid-template-columns: 1fr;
  }
}

/* 三列布局 */
.layout-three-column {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}
@media (max-width: 1400px) {
  .layout-three-column {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .layout-three-column {
    grid-template-columns: 1fr;
  }
}

/* 左侧固定宽度布局 */
.layout-sidebar-right {
  display: flex;
  gap: var(--spacing-lg);
}
.layout-sidebar-right .sidebar-section {
  width: 280px;
  flex-shrink: 0;
}
.layout-sidebar-right .main-section {
  flex: 1;
  min-width: 0;
}
@media (max-width: 1024px) {
  .layout-sidebar-right {
    flex-direction: column;
  }
  .layout-sidebar-right .sidebar-section {
    width: 100%;
  }
}

/* 右侧固定宽度布局 */
.layout-sidebar-left {
  display: flex;
  gap: var(--spacing-lg);
}
.layout-sidebar-left .sidebar-section {
  width: 280px;
  flex-shrink: 0;
}
.layout-sidebar-left .main-section {
  flex: 1;
  min-width: 0;
}
@media (max-width: 1024px) {
  .layout-sidebar-left {
    flex-direction: column;
  }
  .layout-sidebar-left .sidebar-section {
    width: 100%;
  }
}

/* 内容区域容器 */
.content-container {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

/* 卡片标题栏 */
.card-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border-light);
  margin: calc(var(--spacing-lg) * -1);
  margin-bottom: var(--spacing-lg);
}
.card-header-bar .title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
}
.card-header-bar .actions {
  display: flex;
  gap: var(--spacing-sm);
}

/* 密集模式表格 */
.table-dense thead th,
.table-dense tbody td {
  padding: 6px var(--spacing-md);
  font-size: var(--font-size-xs);
}

/* 紧凑间距 */
.compact-spacing {
  --spacing-xs: 2px;
  --spacing-sm: 4px;
  --spacing-base: 6px;
  --spacing-md: 8px;
  --spacing-lg: 12px;
  --spacing-xl: 16px;
}

/* 宽松间距 */
.loose-spacing {
  --spacing-xs: 6px;
  --spacing-sm: 12px;
  --spacing-base: 16px;
  --spacing-md: 20px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
}

/* ===== 界面类型检测类 (用于JavaScript) ===== */
.page-container {
  --page-type: unknown;
}
.page-container.page-type-list {
  --page-type: list;
}
.page-container.page-type-chart {
  --page-type: chart;
}
.page-container.page-type-special {
  --page-type: special;
}