/* ========== 现代深色主题 · 核心变量 ========== */
:root {
  /* 背景与表面 */
  --color-bg: #0B1120;
  --color-bg-glow: rgba(79, 70, 229, 0.08);
  --color-surface: rgba(30, 41, 59, 0.72);
  --color-surface-solid: #1E293B;
  --color-surface-hover: rgba(51, 65, 85, 0.6);
  --color-border: rgba(148, 163, 184, 0.1);
  --color-border-strong: rgba(148, 163, 184, 0.18);

  /* 品牌色 */
  --color-primary: #6366F1;
  --color-primary-soft: rgba(99, 102, 241, 0.16);
  --color-accent: #A78BFA;
  --color-accent-soft: rgba(167, 139, 250, 0.16);

  /* 功能色 */
  --color-success: #34D399;
  --color-success-soft: rgba(52, 211, 153, 0.14);
  --color-warning: #FBBF24;
  --color-warning-soft: rgba(251, 191, 36, 0.14);
  --color-danger: #F87171;
  --color-danger-soft: rgba(248, 113, 113, 0.14);
  --color-info: #60A5FA;
  --color-info-soft: rgba(96, 165, 250, 0.14);

  /* 文本 */
  --color-text: #F8FAFC;
  --color-text-secondary: #A0AEC0;
  --color-text-tertiary: #64748B;

  /* 布局尺寸 */
  --sidebar-width: 260px;
  --topbar-height: 68px;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* 阴影（更有层次感） */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);

  /* 过渡 */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  /* 毛玻璃 */
  --backdrop-blur: 16px;
}

/* ========== 全局重置与基础 ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  /* 背景微光，增加氛围 */
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(167, 139, 250, 0.04) 0%, transparent 60%);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent);
}

/* 自定义滚动条 - 更细更精致 */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(100, 116, 139, 0.5);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(100, 116, 139, 0.8);
}

/* ========== 布局骨架 ========== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ========== 侧边栏 ========== */
.app-sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border-right: 1px solid var(--color-border);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition-slow), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 30px rgba(0, 0, 0, 0.15);
}

.app-sidebar.collapsed {
  transform: translateX(-100%);
  box-shadow: none;
}

.sidebar-logo {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 8px;
}

.sidebar-logo h2 {
  font-size: 1.35rem;
  font-weight: 700;
  background: linear-gradient(135deg, #818CF8, #C4B5FD);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

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

.sidebar-section {
  margin-bottom: 16px;
}

.sidebar-section-title {
  padding: 12px 12px 8px;
  font-size: 0.68rem;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  letter-spacing: 0.12em;
  font-weight: 700;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: all var(--transition);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  border: 1px solid transparent;
}

.sidebar-item:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-border);
}

.sidebar-item.active {
  background: var(--color-primary-soft);
  color: #A5B4FC;
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.1);
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--color-primary);
  box-shadow: 0 0 10px var(--color-primary);
}

.sidebar-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
}

/* ========== 主区域 ========== */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-slow);
}

.app-sidebar.collapsed ~ .app-main,
.app-sidebar.collapsed + .app-main {
  margin-left: 0;
}

/* ========== 顶栏 ========== */
.app-topbar {
  height: var(--topbar-height);
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 18px;
}

.hamburger {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hamburger:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  transform: rotate(90deg);
}

.hamburger svg {
  width: 20px;
  height: 20px;
}

.topbar-search {
  position: relative;
}

.topbar-search input {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--color-border);
  border-radius: 30px;
  padding: 9px 16px 9px 40px;
  color: var(--color-text);
  font-size: 0.9rem;
  width: 300px;
  outline: none;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}

.topbar-search input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2), var(--shadow-glow);
  background: rgba(15, 23, 42, 0.8);
  width: 340px;
}

.topbar-search svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-tertiary);
  transition: var(--transition);
}

.topbar-search input:focus + svg {
  color: var(--color-primary);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-icon {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 10px;
  border-radius: 50%;
  transition: var(--transition);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.topbar-icon:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.topbar-icon svg {
  width: 20px;
  height: 20px;
}

.topbar-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: var(--color-danger);
  border-radius: 50%;
  border: 2px solid var(--color-bg);
  box-shadow: 0 0 8px var(--color-danger);
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  padding: 5px 10px 5px 5px;
  border-radius: 50px;
  transition: var(--transition);
  border: 1px solid transparent;
}

.topbar-user:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border);
}

.topbar-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366F1, #A78BFA);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.8rem;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

/* ========== 内容区 ========== */
.app-content {
  padding: 28px;
  flex: 1;
  animation: fadeIn 0.4s ease;
}

.page-header {
  margin-bottom: 28px;
}

.page-header h1 {
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #F8FAFC, #C7D2FE);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

/* ========== 统计卡片（四块横排一行） ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

@media (max-width: 1200px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  background: var(--color-surface);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: var(--color-border-strong);
  background: rgba(40, 50, 70, 0.8);
}

.stat-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  bottom: 15%;
  width: 4px;
  border-radius: 0 4px 4px 0;
}

.stat-card:nth-child(1)::before {
  background: linear-gradient(to bottom, #6366F1, #818CF8);
  box-shadow: 0 0 12px #6366F1;
}

.stat-card:nth-child(2)::before {
  background: linear-gradient(to bottom, #10B981, #34D399);
  box-shadow: 0 0 12px #10B981;
}

.stat-card:nth-child(3)::before {
  background: linear-gradient(to bottom, #8B5CF6, #A78BFA);
  box-shadow: 0 0 12px #8B5CF6;
}

.stat-card:nth-child(4)::before {
  background: linear-gradient(to bottom, #F59E0B, #FBBF24);
  box-shadow: 0 0 12px #F59E0B;
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 18px;
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.stat-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.stat-card:nth-child(1) .stat-icon {
  background: var(--color-primary-soft);
  color: #818CF8;
}

.stat-card:nth-child(2) .stat-icon {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.stat-card:nth-child(3) .stat-icon {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.stat-card:nth-child(4) .stat-icon {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}

.stat-icon svg {
  width: 22px;
  height: 22px;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.stat-change {
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.stat-change.up {
  color: var(--color-success);
  text-shadow: 0 0 12px rgba(52, 211, 153, 0.4);
}

.stat-change.down {
  color: var(--color-danger);
  text-shadow: 0 0 12px rgba(248, 113, 113, 0.4);
}

/* ========== 通用卡片 ========== */
.card {
  background: var(--color-surface);
  backdrop-filter: blur(var(--backdrop-blur));
  -webkit-backdrop-filter: blur(var(--backdrop-blur));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow);
}

.card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.card-body {
  padding: 22px;
}

.card-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--color-border);
  background: rgba(0, 0, 0, 0.1);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-bottom: 28px;
}

@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ========== 图表条 ========== */
.chart-bar {
  display: flex;
  align-items: flex-end;
  gap: 14px;
  height: 240px;
  padding: 0 12px;
}

.chart-bar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: flex-end;
}

.chart-bar-fill {
  width: 100%;
  max-width: 38px;
  border-radius: 8px 8px 0 0;
  transition: height 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 6px;
  background: linear-gradient(to top, #6366F1, #A78BFA);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.chart-bar-label {
  font-size: 0.7rem;
  color: var(--color-text-tertiary);
  margin-top: 10px;
  font-weight: 500;
}

.chart-bar-value {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  font-weight: 700;
}

/* ========== 饼图（重要！） ========== */
.chart-pie {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  position: relative;
  margin: 0 auto;
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.15);
  flex-shrink: 0;
}

.chart-pie::after {
  content: '';
  position: absolute;
  inset: 25%;
  background: var(--color-surface-solid);
  border-radius: 50%;
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.chart-legend {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 0;
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.chart-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 8px currentColor;
}

/* ========== 表格 ========== */
.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  text-align: left;
  padding: 12px 18px;
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  font-weight: 700;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--color-border-strong);
  background: rgba(0, 0, 0, 0.15);
}

.table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.table tbody tr {
  transition: var(--transition);
}

.table tbody tr:hover {
  background: rgba(99, 102, 241, 0.06);
  box-shadow: inset 2px 0 0 var(--color-primary);
}

/* ========== 操作列 & 徽章 ========== */
.cell-actions {
  display: flex;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-success {
  background: var(--color-success-soft);
  color: var(--color-success);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.badge-warning {
  background: var(--color-warning-soft);
  color: var(--color-warning);
  border: 1px solid rgba(251, 191, 36, 0.25);
}

.badge-danger {
  background: var(--color-danger-soft);
  color: var(--color-danger);
  border: 1px solid rgba(248, 113, 113, 0.25);
}

.badge-info {
  background: var(--color-info-soft);
  color: var(--color-info);
  border: 1px solid rgba(96, 165, 250, 0.25);
}

.badge-primary {
  background: var(--color-primary-soft);
  color: #A5B4FC;
  border: 1px solid rgba(99, 102, 241, 0.25);
}

.badge-neutral {
  background: rgba(148, 163, 184, 0.12);
  color: var(--color-text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  box-shadow: 0 0 6px currentColor;
}

.badge-dot.success {
  background: var(--color-success);
}

.badge-dot.warning {
  background: var(--color-warning);
}

.badge-dot.danger {
  background: var(--color-danger);
}

.badge-dot.neutral {
  background: var(--color-text-tertiary);
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 30px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, #6366F1, #8B5CF6);
  color: #fff;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5), var(--shadow-glow);
}

.btn-secondary {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: rgba(148, 163, 184, 0.2);
  border-color: var(--color-border-strong);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  box-shadow: 0 4px 15px rgba(248, 113, 113, 0.3);
}

.btn-danger:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(248, 113, 113, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  padding: 7px 14px;
}

.btn-ghost:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn-xs {
  padding: 5px 12px;
  font-size: 0.75rem;
}

.btn-group {
  display: flex;
  gap: 8px;
}

/* ========== 标签页 ========== */
.tabs {
  display: flex;
  gap: 4px;
  background: rgba(15, 23, 42, 0.5);
  padding: 4px;
  border-radius: 30px;
  margin-bottom: 18px;
  width: fit-content;
  border: 1px solid var(--color-border);
}

.tab {
  padding: 9px 20px;
  border-radius: 30px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: transparent;
  font-weight: 500;
}

.tab.active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-strong);
}

.tab:hover:not(.active) {
  color: var(--color-text);
  background: rgba(148, 163, 184, 0.08);
}

/* ========== 表单 ========== */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 16px;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
  backdrop-filter: blur(6px);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.18), var(--shadow-glow);
  background: rgba(15, 23, 42, 0.7);
}

.form-group textarea {
  resize: vertical;
  min-height: 90px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-row3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
}

@media (max-width: 768px) {
  .form-row,
  .form-row3 {
    grid-template-columns: 1fr;
  }
}

/* ========== 工具类 ========== */
.text-sm {
  font-size: 0.82rem;
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-center {
  text-align: center;
}

.mt-4 {
  margin-top: 18px;
}

.mb-4 {
  margin-bottom: 18px;
}

/* ========== 模态框 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: fadeIn 0.25s ease;
}

.modal {
  background: var(--color-surface-solid);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 580px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(99, 102, 241, 0.15);
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-sm {
  max-width: 420px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 650;
}

.modal-close {
  background: none;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  transform: rotate(90deg);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 18px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: rgba(0, 0, 0, 0.1);
}

/* ========== Toast 通知 ========== */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--color-surface-solid);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.9rem;
  min-width: 300px;
  animation: slideInRight 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.toast.success {
  border-left: 4px solid var(--color-success);
}

.toast.error {
  border-left: 4px solid var(--color-danger);
}

.toast.warning {
  border-left: 4px solid var(--color-warning);
}

.toast.info {
  border-left: 4px solid var(--color-info);
}

.toast-icon {
  flex-shrink: 0;
}

.toast.success .toast-icon {
  color: var(--color-success);
}

.toast.error .toast-icon {
  color: var(--color-danger);
}

.toast.warning .toast-icon {
  color: var(--color-warning);
}

.toast.info .toast-icon {
  color: var(--color-info);
}

.toast-close {
  background: none;
  border: none;
  color: var(--color-text-tertiary);
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
}

.toast-close:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(24px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(120%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* 可选：为卡片和区域添加微妙的入场动画 */
.stat-card,
.card {
  animation: fadeIn 0.5s ease both;
}

.stat-card:nth-child(2) {
  animation-delay: 0.05s;
}

.stat-card:nth-child(3) {
  animation-delay: 0.1s;
}

.stat-card:nth-child(4) {
  animation-delay: 0.15s;
}