* { box-sizing: border-box; }
html, body, #app { margin: 0; padding: 0; height: 100%; }
body { font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif; background: #f4f6f8; }

.layout { display: flex; min-height: 100vh; }

.sidebar { width: 220px; background: #1a5276; flex-shrink: 0; }
.brand { color: #fff; font-size: 18px; font-weight: 600; padding: 20px 16px; border-bottom: 1px solid rgba(255,255,255,0.15); }
.sidebar .el-menu { border-right: none; }
.sidebar .el-menu-item { height: 52px; line-height: 52px; }
.sidebar .el-menu-item.is-active { background: #2874a6 !important; }
.sidebar .el-menu-item .menu-badge { margin-left: 6px; }
.sidebar .el-menu-item .menu-badge .el-badge__content { position: static; transform: translateY(-14px); margin-left: 0; font-size: 11px; height: 16px; line-height: 16px; padding: 0 5px; min-width: 16px; }

.main { flex: 1; padding: 24px; overflow: auto; }
.page-title { margin: 0 0 16px; font-size: 20px; color: #1d2129; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.page-head .page-title { margin: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.stat-num { font-size: 32px; font-weight: 700; color: #1a5276; }
.stat-num.green { color: #27ae60; }
.stat-num.orange { color: #e67e22; }
.stat-num.blue { color: #3498db; }
.stat-num.red { color: #c0392b; }
.stat-label { margin-top: 4px; color: #86909c; font-size: 14px; }

.photo-box { display: flex; align-items: center; }

@media (max-width: 900px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

/* 登录页 */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1a5276 0%, #2874a6 100%); }
.login-box { width: 360px; background: #fff; border-radius: 12px; padding: 36px 32px; box-shadow: 0 10px 40px rgba(0,0,0,0.2); }
.login-title { font-size: 22px; font-weight: 700; color: #1a5276; text-align: center; }
.login-sub { font-size: 14px; color: #86909c; text-align: center; margin: 8px 0 24px; }

/* 侧边栏退出登录 */
.sidebar-logout { color: #cbd5e1; font-size: 14px; padding: 16px; text-align: center; cursor: pointer; border-top: 1px solid rgba(255,255,255,0.15); margin-top: 8px; }
.sidebar-logout:hover { color: #fff; background: rgba(255,255,255,0.06); }