* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif; background: #f5f7fa; color: #1f2329; }
a { color: #4f7cff; text-decoration: none; }

.topbar { display: flex; align-items: center; height: 54px; padding: 0 24px; background: #fff; border-bottom: 1px solid #e6e8eb; position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 700; font-size: 17px; margin-right: 32px; }
.nav { display: flex; gap: 8px; flex: 1; }
.nav a { padding: 6px 14px; border-radius: 6px; color: #4b5563; }
.nav a:hover { background: #f0f2f5; }
.nav a.active { background: #4f7cff; color: #fff; }
.userinfo { display: flex; align-items: center; gap: 12px; color: #4b5563; }
.logout { color: #9ca3af; }

.container { max-width: 1280px; margin: 0 auto; padding: 24px; }
.page-title { font-size: 20px; margin-bottom: 20px; }
.back-row { margin-bottom: 16px; }
.back-link { color: #4f7cff; }

/* 统计卡片 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card { background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 16px; }
.stat-label { color: #6b7280; font-size: 13px; margin-bottom: 8px; }
.stat-value { font-size: 22px; font-weight: 700; }
.stat-value.danger { color: #ef4444; }
.stat-value.warning { color: #f59e0b; }

/* 图表 */
.chart-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.chart-card { background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 16px; }
.chart-title { font-weight: 600; margin-bottom: 10px; color: #374151; }
.chart { height: 300px; }
@media (max-width: 900px) { .chart-grid { grid-template-columns: 1fr; } }

/* 筛选 */
.filter-bar { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-end; background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 16px; margin-bottom: 18px; }
.filter-bar label { display: flex; flex-direction: column; font-size: 13px; color: #6b7280; gap: 5px; }
.filter-bar input, .filter-bar select { padding: 7px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; min-width: 140px; }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid #eef0f3; border-radius: 10px; overflow: hidden; }
.data-table th, .data-table td { padding: 11px 12px; text-align: left; border-bottom: 1px solid #f0f2f5; font-size: 13px; vertical-align: top; }
.data-table th { background: #fafbfc; color: #6b7280; font-weight: 600; }
.data-table .empty { text-align: center; color: #9ca3af; padding: 30px; }
.sub { color: #9ca3af; font-size: 12px; margin-top: 2px; }
.prod { max-width: 280px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-link { font-weight: 600; color: #1f2329; }
.user-link:hover { color: #4f7cff; }
.mini-btn { margin-left: 8px; padding: 2px 8px; font-size: 12px; border: 1px solid #d1d5db; background: #fff; border-radius: 5px; cursor: pointer; color: #4b5563; }
.mini-btn:hover { border-color: #4f7cff; color: #4f7cff; }
.mini-btn.danger { color: #ef4444; border-color: #fca5a5; }

/* 徽章 */
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; }
.badge-danger { background: #fee2e2; color: #dc2626; }
.badge-warning { background: #fef3c7; color: #d97706; }
.badge-ok { background: #dcfce7; color: #16a34a; }

/* 分页 */
.pagination { display: flex; align-items: center; gap: 14px; justify-content: flex-end; margin-top: 16px; color: #6b7280; font-size: 13px; }
.btn { padding: 7px 14px; border: 1px solid #d1d5db; background: #fff; border-radius: 6px; cursor: pointer; font-size: 14px; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { padding: 8px 16px; background: #4f7cff; color: #fff; border: none; border-radius: 6px; cursor: pointer; font-size: 14px; }
.btn-primary:hover { background: #3e6bf0; }

/* 弹窗 */
.modal { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 100; }
.modal-mask { position: absolute; inset: 0; background: rgba(0,0,0,0.4); }
.modal-box { position: relative; background: #fff; border-radius: 12px; padding: 24px; width: 360px; max-width: 90vw; max-height: 70vh; overflow: auto; }
.modal-title { font-weight: 700; margin-bottom: 14px; }
.modal-box ul { list-style: none; }
.modal-box li { padding: 7px 0; border-bottom: 1px solid #f0f2f5; }

/* 登录页 */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: linear-gradient(135deg, #4f7cff, #7b5cff); }
.login-card { background: #fff; border-radius: 14px; padding: 40px; width: 360px; box-shadow: 0 10px 40px rgba(0,0,0,0.15); }
.login-card h1 { font-size: 20px; text-align: center; margin-bottom: 26px; }
.login-card label { display: block; font-size: 13px; color: #6b7280; margin-bottom: 6px; }
.login-card input { width: 100%; padding: 10px; border: 1px solid #d1d5db; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.login-card button { width: 100%; padding: 11px; background: #4f7cff; color: #fff; border: none; border-radius: 6px; font-size: 15px; cursor: pointer; }
.login-card button:hover { background: #3e6bf0; }
.login-error { background: #fee2e2; color: #dc2626; padding: 9px; border-radius: 6px; margin-bottom: 14px; font-size: 13px; }

/* 用户详情 */
.detail-loading { color: #9ca3af; padding: 40px; text-align: center; }
.detail-head { display: flex; align-items: center; gap: 18px; background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 20px; margin-bottom: 16px; }
.avatar { width: 56px; height: 56px; border-radius: 50%; background: #4f7cff; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 700; }
.detail-head-info { flex: 1; }
.detail-head-info h2 { font-size: 19px; margin-bottom: 6px; }
.detail-head-info p { color: #6b7280; font-size: 13px; margin-bottom: 3px; }
.profile-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.profile-card { background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 16px; text-align: center; }
.profile-label { color: #6b7280; font-size: 13px; margin-bottom: 8px; }
.profile-value { font-size: 20px; font-weight: 700; }
.section-title { font-size: 16px; margin-bottom: 12px; }

/* 配置页 */
.config-section { background: #fff; border: 1px solid #eef0f3; border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.config-section h3 { font-size: 16px; margin-bottom: 16px; }
.inline-form { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.inline-form label { display: flex; flex-direction: column; font-size: 13px; color: #6b7280; gap: 5px; }
.inline-form input { padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; }
.hint { color: #9ca3af; font-size: 12px; margin-top: 12px; }
.op-leader-card { border: 1px solid #eef0f3; border-radius: 8px; padding: 14px; margin-top: 12px; }
.op-leader-head { font-weight: 600; margin-bottom: 10px; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 6px; margin-bottom: 12px; max-height: 240px; overflow: auto; }
.checkbox-item { display: flex; align-items: center; gap: 6px; font-size: 13px; color: #374151; }
.checkbox-item input { cursor: pointer; }
.flash-error { background: #fee2e2; color: #dc2626; padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }