/* ============================================================
   AED 系统全局样式
   ============================================================ */
:root {
    --primary:    #1677ff;
    --primary-d:  #0958d9;
    --success:    #52c41a;
    --warning:    #faad14;
    --danger:     #f5222d;
    --secondary:  #8c8c8c;
    --bg:         #f0f2f5;
    --sidebar-w:  220px;
    --header-h:   60px;
    --card-r:     8px;
    --shadow:     0 1px 4px rgba(0,0,0,.12);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif; font-size: 14px; color: #333; background: var(--bg); }
a { color: var(--primary); text-decoration: none; }

/* ── 布局 ───────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-w); background: #001529; position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto; z-index: 100; display: flex; flex-direction: column; }
.sidebar-logo { color: #fff; font-size: 16px; font-weight: 700; padding: 18px 20px; border-bottom: 1px solid rgba(255,255,255,.1); display: flex; align-items: center; gap: 10px; }
.sidebar-logo span { font-size: 22px; }
.sidebar-nav { flex: 1; padding: 8px 0; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 12px 20px; color: rgba(255,255,255,.65); cursor: pointer; transition: all .2s; font-size: 14px; border-left: 3px solid transparent; }
.nav-item:hover, .nav-item.active { color: #fff; background: rgba(255,255,255,.08); border-left-color: var(--primary); }
.nav-item .icon { font-size: 18px; width: 20px; text-align: center; }

.header { position: fixed; top: 0; left: var(--sidebar-w); right: 0; height: var(--header-h); background: #fff; box-shadow: var(--shadow); z-index: 99; display: flex; align-items: center; padding: 0 24px; gap: 16px; }
.header-title { font-size: 16px; font-weight: 600; flex: 1; }
.header-user { display: flex; align-items: center; gap: 8px; cursor: pointer; color: #555; }
.header-user:hover { color: var(--primary); }

.main { margin-left: var(--sidebar-w); margin-top: var(--header-h); padding: 24px; min-height: calc(100vh - var(--header-h)); }

/* ── 卡片 ───────────────────────────────────────────────── */
.card { background: #fff; border-radius: var(--card-r); box-shadow: var(--shadow); }
.card-header { padding: 16px 20px; border-bottom: 1px solid #f0f0f0; font-weight: 600; display: flex; align-items: center; justify-content: space-between; }
.card-body { padding: 20px; }

/* ── 统计卡片 ───────────────────────────────────────────── */
.stat-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card { background: #fff; border-radius: var(--card-r); padding: 16px; box-shadow: var(--shadow); cursor: pointer; transition: transform .15s; text-align: center; border-top: 3px solid transparent; }
.stat-card:hover { transform: translateY(-2px); }
.stat-card.normal  { border-color: var(--success); }
.stat-card.warning { border-color: var(--warning); }
.stat-card.fault   { border-color: var(--danger); }
.stat-card.drift   { border-color: var(--secondary); }
.stat-card .num  { font-size: 28px; font-weight: 700; color: #333; }
.stat-card .label{ font-size: 12px; color: #999; margin-top: 4px; }

/* ── 按钮 ───────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 6px; border: 1px solid #d9d9d9; background: #fff; cursor: pointer; font-size: 14px; transition: all .2s; white-space: nowrap; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary  { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover  { background: var(--primary-d); border-color: var(--primary-d); color: #fff; }
.btn-danger   { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover   { opacity: .85; color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── 表格 ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th { background: #fafafa; padding: 10px 12px; text-align: left; border-bottom: 2px solid #f0f0f0; font-weight: 600; white-space: nowrap; font-size: 13px; color: #555; }
tbody td { padding: 10px 12px; border-bottom: 1px solid #f5f5f5; vertical-align: middle; }
tbody tr:hover { background: #fafafa; }
tbody tr:last-child td { border-bottom: none; }

/* ── 搜索栏 ─────────────────────────────────────────────── */
.search-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; align-items: center; }
.search-bar input, .search-bar select { padding: 6px 10px; border: 1px solid #d9d9d9; border-radius: 6px; font-size: 13px; outline: none; transition: border-color .2s; }
.search-bar input:focus, .search-bar select:focus { border-color: var(--primary); }

/* ── 表单 ───────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 13px; color: #555; }
.form-group label .req { color: var(--danger); }
.form-control { width: 100%; padding: 8px 12px; border: 1px solid #d9d9d9; border-radius: 6px; font-size: 14px; outline: none; transition: border-color .2s; }
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(22,119,255,.1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── 弹窗 ───────────────────────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 1000; display: flex; align-items: center; justify-content: center; }
.modal { background: #fff; border-radius: 10px; width: 560px; max-width: 96vw; max-height: 90vh; overflow-y: auto; box-shadow: 0 8px 32px rgba(0,0,0,.2); }
.modal-header { padding: 16px 20px; border-bottom: 1px solid #f0f0f0; font-weight: 600; font-size: 16px; display: flex; justify-content: space-between; align-items: center; }
.modal-body   { padding: 20px; }
.modal-footer { padding: 12px 20px; border-top: 1px solid #f0f0f0; display: flex; justify-content: flex-end; gap: 10px; }
.modal-close  { cursor: pointer; font-size: 20px; color: #999; line-height: 1; }
.modal-close:hover { color: #333; }
.modal-box { background:#fff;padding:24px 28px;border-radius:10px;max-width:380px;text-align:center; }
.modal-box p { margin-bottom:20px;font-size:15px; }
.modal-actions { display:flex;justify-content:center;gap:12px; }

/* ── 标签 ───────────────────────────────────────────────── */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px; }
.badge-success   { background: #f6ffed; color: #52c41a; border: 1px solid #b7eb8f; }
.badge-warning   { background: #fffbe6; color: #d48806; border: 1px solid #ffe58f; }
.badge-danger    { background: #fff2f0; color: #f5222d; border: 1px solid #ffccc7; }
.badge-secondary { background: #f5f5f5; color: #8c8c8c; border: 1px solid #d9d9d9; }

/* ── Tabs ───────────────────────────────────────────────── */
.tabs { border-bottom: 2px solid #f0f0f0; display: flex; gap: 0; margin-bottom: 20px; }
.tab  { padding: 10px 20px; cursor: pointer; color: #666; border-bottom: 2px solid transparent; margin-bottom: -2px; font-size: 14px; transition: all .2s; }
.tab:hover  { color: var(--primary); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-panel  { display: none; }
.tab-panel.active { display: block; }

/* ── 分页 ───────────────────────────────────────────────── */
.pager { display: flex; align-items: center; gap: 10px; justify-content: flex-end; margin-top: 16px; }
.pager-info { color: #999; font-size: 13px; }

/* ── Toast ──────────────────────────────────────────────── */
.toast { position: fixed; top: 70px; right: 24px; padding: 10px 18px; border-radius: 8px; background: #333; color: #fff; z-index: 9999; opacity: 0; transform: translateX(20px); transition: all .3s; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(0); }
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: var(--primary); }

/* ── 地图 ───────────────────────────────────────────────── */
#map { height: 420px; border-radius: var(--card-r); }

/* ── 图表容器 ───────────────────────────────────────────── */
.charts-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.chart-card { background: #fff; border-radius: var(--card-r); padding: 16px; box-shadow: var(--shadow); }
.chart-card h4 { font-size: 14px; color: #555; margin-bottom: 12px; }

/* ── 登录页 ─────────────────────────────────────────────── */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1677ff 0%, #003eb3 100%); }
.login-box  { background: #fff; border-radius: 12px; padding: 40px; width: 380px; box-shadow: 0 8px 32px rgba(0,0,0,.2); }
.login-logo { text-align: center; margin-bottom: 24px; }
.login-logo h1 { font-size: 22px; color: #1677ff; font-weight: 700; }
.login-logo p  { font-size: 13px; color: #999; margin-top: 4px; }

/* ── 响应式 ─────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { width: 60px; }
    .sidebar-logo span:last-child { display: none; }
    .nav-item span:last-child { display: none; }
    .main { margin-left: 60px; padding: 16px; }
    .header { left: 60px; }
    .form-row { grid-template-columns: 1fr; }
    .charts-row { grid-template-columns: 1fr; }
}

/* ── 空状态 ─────────────────────────────────────────────── */
.empty { text-align: center; padding: 40px; color: #bbb; font-size: 15px; }

/* ── 操作列按钮间距 ─────────────────────────────────────── */
.action-btn { padding: 3px 10px; font-size: 12px; }
td .action-btn + .action-btn { margin-left: 4px; }