/* ========================================
   中国电信宽带预约 - 后台管理样式 v2
   ======================================== */

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

:root {
  --primary: #1A73E8;
  --primary-light: #E8F0FE;
  --primary-dark: #1557B0;
  --success: #34A853;
  --success-light: #E6F4EA;
  --warning: #FBBC04;
  --warning-light: #FEF7E0;
  --danger: #EA4335;
  --danger-light: #FCE8E6;
  --info: #4285F4;
  --info-light: #E8F0FE;
  --bg: #F1F3F6;
  --card-bg: #FFFFFF;
  --text: #1F1F1F;
  --text-secondary: #5F6368;
  --text-muted: #9AA0A6;
  --border: #E0E0E0;
  --border-light: #F0F0F0;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 4px 16px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-xl: 0 8px 32px rgba(0,0,0,0.12);
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ========== 页面切换 ========== */
.page { display: none; }
.page.active { display: flex; }

/* ========== 登录页 ========== */
.login-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0D47A1 0%, #1A73E8 40%, #4285F4 100%);
  position: relative;
  overflow: hidden;
}

.login-container::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
}

.login-container::after {
  content: '';
  position: absolute;
  bottom: -40%;
  left: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
}

.login-card {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 44px 40px;
  width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  position: relative;
  z-index: 1;
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.login-header h1 {
  font-size: 26px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.login-header p {
  color: var(--text-muted);
  font-size: 14px;
}

/* 登录类型切换 */
.login-tabs {
  display: flex;
  margin-bottom: 28px;
  background: #F5F7FA;
  border-radius: 10px;
  padding: 3px;
}

.login-tab {
  flex: 1;
  padding: 10px 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  border-radius: 8px;
  font-weight: 500;
}

.login-tab.active {
  background: #fff;
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid #E8EAED;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition);
  background: #FAFBFC;
  font-family: inherit;
}

.form-group textarea {
  height: auto;
  padding: 12px 14px;
  resize: vertical;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}

.error-msg {
  color: var(--danger);
  font-size: 13px;
  margin-top: 10px;
  text-align: center;
  min-height: 20px;
}

/* ========== 图片上传 ========== */
.upload-preview,
.upload-preview-list {
  transition: var(--transition);
  cursor: pointer;
}
.upload-preview:hover,
.upload-preview-list:hover {
  border-color: var(--primary) !important;
  background: #FAFBFC;
}

/* ========== 主布局 ========== */
#page-main {
  height: 100vh;
}

.sidebar {
  width: 250px;
  background: linear-gradient(180deg, #0D2137 0%, #132F4C 100%);
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  box-shadow: 2px 0 12px rgba(0,0,0,0.08);
}

.sidebar-header {
  padding: 26px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-header .logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.sidebar-header h2 {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 11px 16px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
  border-radius: 8px;
  margin-bottom: 2px;
  font-weight: 500;
}

.nav-item:hover {
  color: #FFFFFF;
  background: rgba(255,255,255,0.06);
}

.nav-item.active {
  color: #FFFFFF;
  background: var(--primary);
  box-shadow: 0 2px 8px rgba(26,115,232,0.4);
}

.nav-item span {
  margin-right: 10px;
  font-size: 18px;
}

.sidebar-footer {
  padding: 16px 14px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  gap: 8px;
}

.change-pwd-link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.change-pwd-link:hover { color: #fff; background: rgba(255,255,255,0.08); }

.logout-btn {
  color: #FF8A80;
  text-decoration: none;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}

.logout-btn:hover { background: rgba(234,67,53,0.15); }

/* ========== 主内容区 ========== */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
  background: var(--bg);
}

.content-page { display: none; }
.content-page.active { display: block; }

.page-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
  letter-spacing: -0.5px;
}

/* ========== 统计卡片 ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary);
  border-radius: 4px 0 0 4px;
}

.stat-card.stat-pending::after { background: var(--warning); }
.stat-card.stat-contacted::after { background: var(--info); }
.stat-card.stat-installing::after { background: var(--success); }
.stat-card.stat-total::after { background: var(--primary); }
.stat-card.stat-completed::after { background: var(--text-muted); }

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 34px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -1px;
}

/* ========== 图表 ========== */
.chart-container {
  padding: 24px;
}

.chart-container h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

#package-chart {
  height: 320px;
}

/* ========== 工具栏 ========== */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.search-box {
  display: flex;
  gap: 8px;
  align-items: center;
}

.search-box input, .search-box select {
  height: 38px;
  padding: 0 14px;
  border: 1.5px solid #E8EAED;
  border-radius: var(--radius-sm);
  font-size: 13px;
  background: #fff;
  transition: var(--transition);
}

.search-box input { width: 260px; }
.search-box input:focus, .search-box select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.08);
}

.filter-btns {
  display: flex;
  gap: 4px;
  background: #F5F7FA;
  border-radius: 8px;
  padding: 3px;
}

.filter-btn {
  padding: 6px 16px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  font-weight: 500;
}

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

.filter-btn.active {
  background: #fff;
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

/* ========== 表格 ========== */
.table-container {
  padding: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

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

thead {
  background: #FAFBFC;
}

th {
  padding: 14px 18px;
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-muted);
  border-bottom: 2px solid #F0F0F0;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 13px 18px;
  border-bottom: 1px solid #F5F5F5;
  font-size: 13px;
  color: var(--text);
}

tr:last-child td { border-bottom: none; }

tr:hover { background: #F8FAFD; }

/* 状态标签 */
.status-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.status-badge.pending { background: var(--warning-light); color: #B87A00; }
.status-badge.contacted { background: var(--info-light); color: #1A5DC4; }
.status-badge.installing { background: var(--success-light); color: #1E7E34; }
.status-badge.completed { background: #F0F0F0; color: #666; }
.status-badge.cancelled { background: var(--danger-light); color: #C5221F; }

/* 操作按钮 */
.action-btns {
  display: flex;
  gap: 6px;
}

.btn-sm {
  padding: 5px 14px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  border: 1.5px solid #E0E0E0;
  background: #fff;
  color: var(--text-secondary);
  transition: var(--transition);
  font-weight: 500;
}

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

.btn-sm.btn-danger {
  color: var(--danger);
  border-color: #F5C6CB;
}

.btn-sm.btn-danger:hover {
  background: var(--danger-light);
  border-color: var(--danger);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 18px;
  gap: 8px;
  border-top: 1px solid #F0F0F0;
}

.pagination button {
  padding: 7px 16px;
  border: 1.5px solid #E0E0E0;
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  transition: var(--transition);
  font-weight: 500;
}

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

.pagination button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.pagination span {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ========== 模态框 ========== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(2px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}

.modal.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-content {
  background: #FFFFFF;
  border-radius: 16px;
  width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.2s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px;
  border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  cursor: pointer;
  color: var(--text-muted);
  border-radius: 50%;
  transition: var(--transition);
}

.modal-close:hover {
  background: #F0F0F0;
  color: var(--text);
}

.modal-body {
  padding: 28px;
}

/* ========== 通用组件 ========== */
.card {
  background: #FFFFFF;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.btn-primary {
  padding: 11px 24px;
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 2px 8px rgba(26,115,232,0.3);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* ========== 详情内容 ========== */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.detail-item {
  margin-bottom: 16px;
}

.detail-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.detail-value {
  font-size: 15px;
  color: var(--text);
}

.detail-full {
  grid-column: 1 / -1;
}

.status-select {
  margin-top: 20px;
  padding: 16px;
  background: #FAFBFC;
  border-radius: var(--radius-sm);
}

.status-select select, .status-select input {
  padding: 9px 14px;
  border: 1.5px solid #E8EAED;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}

.status-select select { margin-right: 8px; }
.status-select input { width: 240px; margin-right: 8px; }

.log-list { margin-top: 20px; }

.log-item {
  padding: 12px 0;
  border-bottom: 1px solid #F5F5F5;
  font-size: 13px;
}

.log-item:last-child { border-bottom: none; }

/* ========== 响应式微调 ========== */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h2, .nav-item { font-size: 0; justify-content: center; padding: 12px; }
  .nav-item span { margin-right: 0; }
  .stats-grid { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
}