/* ===== PC端布局 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg, #f1f5f9);
  color: var(--text, #1e293b);
  min-height: 100vh;
}

/* 整体框架 */
.pc-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ===== 侧边栏 ===== */
.pc-sidebar {
  width: 220px;
  min-height: 100vh;
  background: var(--card, #fff);
  border-right: 1px solid var(--border, #e2e8f0);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.pc-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border, #e2e8f0);
}
.pc-sidebar-logo-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.pc-sidebar-logo-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text, #1e293b);
  letter-spacing: 0.5px;
}

.pc-sidebar-nav {
  flex: 1;
  padding: 10px 0;
}

.pc-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  color: var(--text-secondary, #64748b);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 0;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.pc-nav-item:hover {
  background: var(--primary-bg, #f0f0ff);
  color: var(--primary, #667eea);
}
.pc-nav-item.active {
  background: var(--primary-bg, #ede9fe);
  color: var(--primary, #667eea);
  font-weight: 600;
  border-right: 3px solid var(--primary, #667eea);
}
.pc-nav-icon { font-size: 18px; width: 22px; text-align: center; flex-shrink: 0; }
.pc-nav-text { flex: 1; }

.pc-sidebar-footer {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--border, #e2e8f0);
}
.pc-sidebar-book {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  margin-bottom: 6px;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--bg, #f8fafc);
  color: var(--text-secondary, #64748b);
  font-size: 13px;
}
.pc-sidebar-book .pc-nav-icon { font-size: 15px; width: auto; }
.pc-sidebar-book-sel {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--text, #1e293b);
  cursor: pointer;
  outline: none;
  min-width: 0;
}
.pc-sidebar-footer .pc-nav-item { font-size: 13px; color: var(--text-muted, #94a3b8); }
.pc-sidebar-footer .pc-nav-item:hover { color: var(--danger, #ef4444); background: #fff5f5; }

/* ===== 主区域 ===== */
.pc-main {
  flex: 1;
  margin-left: 220px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 顶栏 ===== */
.pc-topbar {
  height: 58px;
  background: var(--card, #fff);
  border-bottom: 1px solid var(--border, #e2e8f0);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 90;
}
.pc-topbar-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text, #1e293b);
  flex: 1;
}
.pc-topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 账本选择 */
.pc-book-select {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border, #e2e8f0);
  border-radius: 8px;
  background: var(--bg, #f8fafc);
  font-size: 13px;
  color: var(--text, #1e293b);
  cursor: pointer;
  min-width: 100px;
}
.pc-book-select select {
  border: none;
  background: none;
  font-size: 13px;
  color: inherit;
  cursor: pointer;
  outline: none;
  max-width: 140px;
}

/* 顶栏按钮 */
.pc-topbar-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--card, #fff);
  font-size: 13px;
  color: var(--text, #1e293b);
  cursor: pointer;
  transition: background 0.15s;
  font-weight: 500;
  white-space: nowrap;
}
.pc-topbar-btn:hover { background: var(--primary-bg, #f0f0ff); border-color: var(--primary, #667eea); color: var(--primary, #667eea); }
.pc-topbar-btn.primary {
  background: var(--primary, #667eea);
  color: #fff;
  border-color: var(--primary, #667eea);
}
.pc-topbar-btn.primary:hover { background: var(--primary-dark, #5a67d8); }

/* 切换移动端按钮 */
.pc-switch-mobile-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 14px;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--card, #fff);
  font-size: 13px;
  color: var(--text-secondary, #64748b);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 500;
  white-space: nowrap;
}
.pc-switch-mobile-btn:hover {
  background: rgba(102,126,234,0.06);
  border-color: var(--primary, #667eea);
  color: var(--primary, #667eea);
}
.pc-switch-mobile-btn span { font-size: 13px; }

/* 通知铃 */
.pc-notice-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--card, #fff);
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
}
.pc-notice-btn:hover { background: var(--primary-bg, #f0f0ff); }
.pc-notice-badge {
  position: absolute;
  top: 2px; right: 2px;
  width: 16px; height: 16px;
  background: var(--danger, #ef4444);
  color: #fff;
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

/* 用户头像 */
.pc-user-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px 5px 5px;
  border-radius: 8px;
  border: 1px solid var(--border, #e2e8f0);
  background: var(--card, #fff);
  cursor: pointer;
  font-size: 13px;
  color: var(--text, #1e293b);
  transition: background 0.15s;
}
.pc-user-btn:hover { background: var(--primary-bg, #f0f0ff); }
.pc-user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== 内容区 ===== */
.pc-content {
  flex: 1;
  padding: 24px;
  overflow-y: auto;
}

/* ===== 卡片 ===== */
.pc-card {
  background: var(--card, #fff);
  border-radius: 12px;
  border: 1px solid var(--border, #e2e8f0);
  padding: 20px;
  margin-bottom: 16px;
}
.pc-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text, #1e293b);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ===== 统计数字格子 ===== */
.pc-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}
.pc-stat-item {
  background: var(--card, #fff);
  border-radius: 12px;
  border: 1px solid var(--border, #e2e8f0);
  padding: 18px 20px;
}
.pc-stat-label {
  font-size: 12px;
  color: var(--text-secondary, #64748b);
  margin-bottom: 6px;
}
.pc-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text, #1e293b);
}
.pc-stat-value.income { color: var(--success, #10b981); }
.pc-stat-value.expense { color: var(--danger, #ef4444); }

/* ===== 双列布局 ===== */
.pc-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.pc-three-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

/* ===== 列表行 ===== */
.pc-list-row {
  display: flex;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border, #f1f5f9);
  gap: 12px;
}
.pc-list-row:last-child { border-bottom: none; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(30,41,59,0.92);
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 9999;
  pointer-events: none;
  animation: fadeInUp 0.2s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ===== 深色模式 ===== */
[data-theme="dark"] body { --bg: #0f172a; --card: #1e293b; --border: #334155; --text: #f1f5f9; --text-secondary: #94a3b8; --text-muted: #64748b; }
[data-theme="dark"] .pc-sidebar { box-shadow: 1px 0 0 #334155; }

/* ===== 响应式：小于900px隐藏侧边栏，显示移动端提示 ===== */
@media (max-width: 899px) {
  .pc-sidebar { display: none; }
  .pc-main { margin-left: 0; }
  .pc-stat-grid { grid-template-columns: 1fr 1fr; }
  .pc-two-col, .pc-three-col { grid-template-columns: 1fr; }
}