/* 全局CSS变量和样式 - PC管理后台 */
:root {
  --primary: #1677FF;
  --primary-light: #E6F0FF;
  --primary-dark: #0958D9;
  --bg: #F5F7FA;
  --sidebar: #0A1929;
  --sidebar-hover: #132F4C;
  --sidebar-active: #1677FF;
  --text: #333333;
  --text-light: #666666;
  --text-muted: #999999;
  --border: #E8E8E8;
  --success: #52C41A;
  --warning: #FA8C16;
  --danger: #FF4D4F;
  --white: #FFFFFF;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

a:hover {
  color: var(--primary-dark);
}

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

/* 侧边栏 */
.sidebar {
  width: 240px;
  background: var(--sidebar);
  color: #FFFFFF;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: width 0.3s;
  overflow-y: auto;
}

.sidebar.collapsed {
  width: 64px;
}

.sidebar-logo {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo h1 {
  font-size: 18px;
  font-weight: 600;
  color: #FFFFFF;
  white-space: nowrap;
}

.sidebar.collapsed .sidebar-logo h1 {
  display: none;
}

.sidebar-nav {
  padding: 12px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 24px;
  color: rgba(255,255,255,0.65);
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-size: 14px;
}

.nav-item:hover {
  color: #FFFFFF;
  background: var(--sidebar-hover);
}

.nav-item.active {
  color: #FFFFFF;
  background: var(--sidebar-active);
}

.nav-icon {
  width: 20px;
  margin-right: 12px;
  text-align: center;
  font-size: 16px;
  flex-shrink: 0;
}

.sidebar.collapsed .nav-text {
  display: none;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 12px;
}

.sidebar.collapsed .nav-icon {
  margin-right: 0;
}

/* 主内容区 */
.main {
  flex: 1;
  margin-left: 240px;
  transition: margin-left 0.3s;
}

.sidebar.collapsed ~ .main {
  margin-left: 64px;
}

/* 顶部栏 */
.header {
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow);
}

.header-left {
  display: flex;
  align-items: center;
}

.toggle-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.2s;
  border: none;
  background: transparent;
  font-size: 18px;
}

.toggle-btn:hover {
  background: var(--bg);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
}

.logout-btn {
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text-light);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
}

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

/* 内容区域 */
.content {
  padding: 24px;
}

/* ========== 页面标题 ========== */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text);
}

.page-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== 统计卡片 ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  display: block;
}

.stat-card.primary .stat-value { color: var(--primary); }
.stat-card.success .stat-value { color: var(--success); }
.stat-card.warning .stat-value { color: var(--warning); }
.stat-card.danger .stat-value { color: var(--danger); }

/* ========== 工具栏 ========== */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ========== 表格 ========== */
.table-wrap {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

thead {
  background: #FAFAFA;
}

th {
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-light);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--text);
  border-bottom: 1px solid #F0F0F0;
}

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

tr:hover td {
  background: #FAFBFC;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
  line-height: 1.5;
  white-space: nowrap;
}

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

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

.btn-success {
  background: var(--success);
  color: var(--white);
  border-color: var(--success);
}

.btn-warning {
  background: var(--warning);
  color: var(--white);
  border-color: var(--warning);
}

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

.btn-danger:hover {
  background: #D4363A;
}

.btn-default {
  background: var(--white);
  color: var(--text);
  border-color: var(--border);
}

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

.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
}

.btn-link {
  background: transparent;
  color: var(--primary);
  border: none;
  padding: 4px 8px;
}

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

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

.btn-link.danger:hover {
  color: #D4363A;
}

/* ========== 表单 ========== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--text);
  transition: border-color 0.2s;
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.form-input.search {
  width: 240px;
}

/* ========== Badge ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-default {
  background: #F0F0F0;
  color: var(--text-light);
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}

.badge-success {
  background: #F0FFF0;
  color: var(--success);
}

.badge-warning {
  background: #FFF7E6;
  color: var(--warning);
}

.badge-danger {
  background: #FFF1F0;
  color: var(--danger);
}

/* ========== 弹窗 ========== */
.modal-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal {
  background: var(--white);
  border-radius: 12px;
  width: 520px;
  max-width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 50%;
  border: none;
  background: transparent;
  font-size: 18px;
  color: var(--text-muted);
  transition: all 0.2s;
}

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

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* ========== Toast ========== */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  animation: slideIn 0.3s ease;
  min-width: 200px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); }
.toast-info { background: var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== 分页 ========== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  padding: 0 8px;
  transition: all 0.2s;
}

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

.page-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.page-btn:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.page-info {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 12px;
}

/* ========== 登录页 ========== */
.login-page {
  min-height: 100vh;
  background: linear-gradient(135deg, #0A1929, #1677FF);
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  width: 400px;
  background: var(--white);
  border-radius: 16px;
  padding: 48px 40px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.login-title {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.login-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

.captcha-row {
  display: flex;
  gap: 12px;
}

.captcha-row .form-input {
  flex: 1;
}

.captcha-img {
  height: 38px;
  padding: 0 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  user-select: none;
  border: 1px solid var(--border);
  min-width: 100px;
  justify-content: center;
}

/* ========== 配置页 ========== */
.config-section {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 24px;
}

.config-section-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

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

@media (max-width: 768px) {
  .sidebar {
    width: 64px;
  }
  .sidebar .nav-text,
  .sidebar .sidebar-logo h1 {
    display: none;
  }
  .sidebar .nav-item {
    justify-content: center;
    padding: 12px;
  }
  .sidebar .nav-icon {
    margin-right: 0;
  }
  .main {
    margin-left: 64px;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .toolbar {
    flex-direction: column;
    align-items: flex-start;
  }
}