/* ========== 基础 ========== */
:root {
  --primary: #1677ff;
  --primary-dark: #0958d9;
  --primary-light: #e6f4ff;
  --success: #52c41a;
  --warning: #faad14;
  --danger: #ff4d4f;
  --text: rgba(0, 0, 0, 0.88);
  --text-2: rgba(0, 0, 0, 0.45);
  --border: #e5e7eb;
  --bg: #f5f7fa;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

.sidebar {
  width: 216px;
  flex-shrink: 0;
  background: #001529;
  color: rgba(255, 255, 255, 0.68);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 56px;
  padding: 0 18px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
}

.brand svg { flex-shrink: 0; color: var(--primary); }

.menu-group { margin-top: 6px; }

.menu-group-title {
  padding: 10px 20px 4px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.35);
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 2px 8px;
  padding: 9px 12px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
  white-space: nowrap;
  transition: all 0.15s;
}

.menu-item:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }

.menu-item.active { color: #fff; background: var(--primary); }

.menu-item svg { flex-shrink: 0; opacity: 0.9; }

.layout-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
  height: 56px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-title { font-size: 16px; font-weight: 600; }

.topbar-right { display: flex; align-items: center; gap: 14px; }

.topbar-user { display: inline-flex; align-items: center; gap: 5px; color: var(--text-2); font-size: 13px; }

.content { flex: 1; padding: 16px; }

body.login-mode .sidebar,
body.login-mode .topbar { display: none; }

body.login-mode .content { padding: 0; display: flex; flex-direction: column; }

/* ========== 登录页 ========== */
.login-wrap {
  flex: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #dbeafe 0%, #e6f4ff 45%, #f5f7fa 100%);
}

.login-card {
  width: 380px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(22, 119, 255, 0.12);
  padding: 36px 36px 26px;
}

.login-logo {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card h2 { font-size: 19px; text-align: center; margin-bottom: 4px; }

.login-sub { text-align: center; color: var(--text-2); font-size: 12px; margin-bottom: 24px; }

.login-tip {
  margin-top: 16px;
  text-align: center;
  font-size: 12px;
  color: var(--text-2);
  background: #fafafa;
  border: 1px dashed #d9d9d9;
  border-radius: 6px;
  padding: 7px;
}

/* ========== 页面容器 / 工具栏 ========== */
.page { display: flex; flex-direction: column; gap: 12px; }

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.toolbar-left { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.toolbar-right { display: flex; align-items: center; gap: 8px; }

/* ========== 卡片 ========== */
.card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.card-pad { padding: 16px; }

.card-title { font-size: 15px; font-weight: 600; margin-bottom: 12px; }

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}

.card-head h4 { font-size: 14px; font-weight: 600; }

.muted { color: var(--text-2); font-size: 12px; line-height: 1.6; }

/* ========== 按钮 ========== */
.btn {
  height: 32px;
  padding: 0 14px;
  border: 1px solid #d9d9d9;
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  transition: all 0.15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.btn:hover { border-color: var(--primary); color: var(--primary); }

.btn:disabled { cursor: not-allowed; color: #bbb; background: #f5f5f5; border-color: #d9d9d9; }

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }

.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }

.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }

.btn-danger:hover { background: #d9363e; border-color: #d9363e; color: #fff; }

.btn-block { width: 100%; height: 38px; font-size: 14px; }

.btn-link {
  border: none;
  background: none;
  height: auto;
  padding: 0 4px;
  color: var(--primary);
  font-size: 13px;
  cursor: pointer;
}

.btn-link:hover { color: var(--primary-dark); background: none; border: none; }

.btn-link.danger { color: var(--danger); }

.btn-link.danger:hover { color: #d9363e; }

/* ========== 表单 ========== */
.form-control {
  height: 32px;
  padding: 0 11px;
  border: 1px solid #d9d9d9;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text);
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.12); }

textarea.form-control { height: auto; padding: 7px 11px; resize: vertical; }

select.form-control { cursor: pointer; }

.form-item { margin-bottom: 14px; }

.form-label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text); }

.form-label .req { color: var(--danger); margin-left: 2px; font-style: normal; }

.form-tip { margin-top: 4px; font-size: 12px; color: var(--text-2); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

/* ========== 表格 ========== */
.table-scroll { overflow-x: auto; }

.data-table { width: 100%; border-collapse: collapse; }

.data-table th {
  background: #fafafa;
  color: rgba(0, 0, 0, 0.65);
  font-weight: 600;
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  white-space: nowrap;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 13px;
  color: var(--text);
  vertical-align: middle;
}

.data-table tbody tr:hover td { background: #fafafa; }

.data-table tfoot td {
  border-top: 2px solid var(--border);
  border-bottom: none;
  background: #fafafa;
  font-weight: 600;
}

.data-table tr.row-click { cursor: pointer; }

.cell-strong { font-weight: 600; }

.cell-mono { font-family: Consolas, Menlo, monospace; font-size: 12px; }

.cell-actions { white-space: nowrap; }

.table-state { text-align: center; color: #999; padding: 36px 0 !important; font-size: 13px; }

.battery { font-weight: 600; }

.b-high { color: var(--success); }

.b-mid { color: var(--warning); }

.b-low { color: var(--danger); }

/* ========== 分页 ========== */
.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}

.page-info { font-size: 12px; color: var(--text-2); }

.page-btns { display: flex; align-items: center; gap: 4px; }

.page-btn {
  min-width: 28px;
  height: 28px;
  padding: 0 8px;
  border: 1px solid #d9d9d9;
  background: #fff;
  border-radius: 4px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
}

.page-btn:hover:not(:disabled):not(.active) { border-color: var(--primary); color: var(--primary); }

.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; cursor: default; }

.page-btn:disabled { color: #bbb; cursor: not-allowed; background: #f5f5f5; }

.page-ellipsis { color: #bbb; padding: 0 2px; font-size: 12px; }

/* ========== 标签 ========== */
.tag {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  border: 1px solid #d9d9d9;
  border-radius: 4px;
  font-size: 12px;
  line-height: 20px;
  white-space: nowrap;
}

.tag-success { color: #389e0d; background: #f6ffed; border-color: #b7eb8f; }

.tag-warning { color: #d48806; background: #fffbe6; border-color: #ffe58f; }

.tag-danger { color: #cf1322; background: #fff1f0; border-color: #ffa39e; }

.tag-info { color: #1677ff; background: #e6f4ff; border-color: #91caff; }

.tag-purple { color: #531dab; background: #f9f0ff; border-color: #d3adf7; }

.tag-default { color: #595959; background: #fafafa; border-color: #d9d9d9; }

/* ========== 弹窗 ========== */
.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  width: 520px;
  max-width: 94vw;
  max-height: 86vh;
  background: #fff;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.18);
  animation: modal-in 0.18s ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(-12px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 15px; font-weight: 600; }

.modal-close {
  border: none;
  background: none;
  font-size: 20px;
  line-height: 1;
  color: #999;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

.modal-close:hover { color: var(--danger); background: #f5f5f5; }

.modal-body { padding: 18px; overflow-y: auto; }

.modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
}

.confirm-msg { font-size: 13px; line-height: 1.7; color: var(--text); }

/* ========== 详情列表 ========== */
.detail-list { font-size: 13px; }

.detail-row { display: flex; padding: 8px 0; border-bottom: 1px dashed #f0f0f0; }

.detail-row:last-child { border-bottom: none; }

.detail-label { width: 110px; flex-shrink: 0; color: var(--text-2); }

.detail-value { flex: 1; word-break: break-all; }

.detail-divider {
  margin: 10px 0 4px;
  padding: 6px 10px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 4px;
  font-weight: 600;
  font-size: 12px;
}

/* ========== Toast ========== */
#toast-root {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  min-width: 200px;
  max-width: 360px;
  background: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 13px;
  border-left: 3px solid #999;
  opacity: 0;
  transform: translateX(24px);
  transition: all 0.25s ease;
}

.toast.show { opacity: 1; transform: none; }

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

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

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

.toast-info { border-left-color: var(--primary); }

/* ========== Loading ========== */
.loading-spin {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid #e5e7eb;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -2px;
  margin-right: 6px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ========== Dashboard ========== */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

.stat-card { display: flex; align-items: center; gap: 14px; padding: 18px 16px; }

.stat-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.a1 { background: #1677ff; }
.a2 { background: #52c41a; }
.a3 { background: #faad14; }
.a4 { background: #ff4d4f; }
.a5 { background: #13c2c2; }
.a6 { background: #722ed1; }
.a7 { background: #eb2f96; }
.a8 { background: #fa8c16; }

.stat-info { min-width: 0; }

.stat-label { font-size: 12px; color: var(--text-2); margin-bottom: 4px; }

.stat-value { font-size: 22px; font-weight: 600; line-height: 1.2; }

.stat-sub { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

.stat-sub .stat-card { padding: 12px 14px; }

.stat-sub .stat-value { font-size: 17px; }

.quick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }

.quick-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 10px;
  border: 1px solid transparent;
  color: var(--text);
  font-size: 13px;
  border-radius: 8px;
  transition: all 0.15s;
}

.quick-link:hover { color: var(--primary); border-color: var(--primary); }

.quick-link svg { color: var(--primary); }

/* ========== 报表柱状图 ========== */
.bar-chart-wrap { padding: 14px 16px 10px; overflow-x: auto; }

.bar-chart { display: flex; align-items: flex-end; gap: 10px; min-width: max-content; }

.bar-item { display: flex; flex-direction: column; align-items: center; min-width: 34px; }

.bar-val { font-size: 11px; color: #666; margin-bottom: 3px; height: 14px; }

.bar-area { height: 130px; width: 100%; display: flex; align-items: flex-end; justify-content: center; }

.bar {
  width: 22px;
  max-width: 60%;
  background: linear-gradient(180deg, #69b1ff, #1677ff);
  border-radius: 3px 3px 0 0;
  min-height: 2px;
}

.bar-label { font-size: 11px; color: #999; margin-top: 5px; white-space: nowrap; }

.bar-empty { padding: 30px 0; text-align: center; color: #999; font-size: 13px; }

.report-sum { font-weight: 600; }

/* ========== 区域页 ========== */
.area-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ========== 计费配置 ========== */
.billing-form { max-width: 640px; }

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-sub { grid-template-columns: repeat(2, 1fr); }
  .area-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar { width: 64px; }
  .brand span, .menu-item span, .menu-group-title { display: none; }
  .menu-item { justify-content: center; }
  .content { padding: 10px; }
}