/**
 * 后台管理面板样式文件
 * 深色侧边栏 + 浅色内容区 经典后台布局
 */

/* ============================================
   基础重置与变量
   ============================================ */
:root {
  /* 深色主题侧边栏 */
  --sidebar-bg: #1e1e2e;
  --sidebar-surface: #252536;
  --sidebar-border: #2d2d42;
  --sidebar-text: #c4c4d4;
  --sidebar-text-dim: #8888a0;
  --sidebar-accent: #7c3aed;
  --sidebar-accent-light: #a78bfa;
  
  /* 浅色主题内容区 */
  --content-bg: #f5f5f7;
  --card-bg: #ffffff;
  --card-border: #e5e7eb;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --card-shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  
  /* 文字颜色 */
  --text-primary: #1a1a2e;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  
  /* 主色调 */
  --primary: #4361ee;
  --primary-hover: #3451d1;
  --primary-light: #eef2ff;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  
  /* 圆角与阴影 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  /* 过渡 */
  --transition: all 0.2s ease;
  --transition-slow: all 0.3s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--content-bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   滚动条样式
   ============================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* 深色区域滚动条 */
.admin-sidebar::-webkit-scrollbar-thumb {
  background: var(--sidebar-border);
}
.admin-sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--sidebar-text-dim);
}

/* ============================================
   登录页面 - 优化版
   ============================================ */
.login-wrapper,
.password-setup-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  position: relative;
  overflow: hidden;
}

/* 背景动态光晕 */
.bg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.6) 0%, transparent 70%);
  top: -150px;
  left: -100px;
  animation-delay: 0s;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(67, 97, 238, 0.5) 0%, transparent 70%);
  bottom: -100px;
  right: -50px;
  animation-delay: -7s;
}

.blob-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes blobFloat {
  0%, 100% { 
    transform: translate(0, 0) scale(1);
  }
  25% { 
    transform: translate(30px, -30px) scale(1.05);
  }
  50% { 
    transform: translate(-20px, 20px) scale(0.95);
  }
  75% { 
    transform: translate(-30px, -20px) scale(1.02);
  }
}

/* 浮动背景动画 */
.login-wrapper::before,
.password-setup-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 30%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(67, 97, 238, 0.08) 0%, transparent 50%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-2%, -2%) rotate(1deg); }
}

/* 登录卡片 */
.login-card,
.password-setup-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
  animation: cardIn 0.5s ease;
}

/* 卡片顶部渐变装饰线 */
.card-accent-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #4361ee 0%, #7c3aed 50%, #ec4899 100%);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 圆形渐变图标背景 */
.icon-circle {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #eef2ff 0%, #f3e8ff 50%, #fce7f3 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.15);
}

.login-card .icon-circle .icon-box,
.password-setup-card .icon-circle .lock-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card .icon-circle .icon-box {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
  border-radius: var(--radius-lg);
}

.login-card .icon-circle .icon-box i,
.password-setup-card .icon-circle .lock-icon i {
  font-size: 32px;
  color: var(--primary);
}

.password-setup-card .icon-circle .lock-icon i {
  color: var(--sidebar-accent);
}

.login-card .logo-area {
  text-align: center;
  margin-bottom: 36px;
}

.login-card .logo-area h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}

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

/* 密码设置页 */
.password-setup-card {
  text-align: center;
  max-width: 440px;
}

.password-setup-card h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.5px;
}

.password-setup-card > p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.6;
}

/* 步骤指示器 */
.step-indicator {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}

.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e5e7eb;
  transition: var(--transition);
}

.step-dot.active {
  background: var(--sidebar-accent);
  width: 24px;
  border-radius: 4px;
}

/* 表单组 */
.login-card .form-group,
.password-setup-card .form-group {
  margin-bottom: 20px;
  text-align: left;
}

.login-card label,
.password-setup-card label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.login-card label .required,
.password-setup-card label .required {
  color: var(--danger);
  margin-left: 2px;
}

/* 输入框容器（带眼睛图标） */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper input {
  padding-right: 44px !important;
}

.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.toggle-password:hover {
  color: var(--text-secondary);
}

/* 输入框样式 */
.login-card input[type="password"],
.login-card input[type="text"],
.password-setup-card input[type="password"],
.password-setup-card input[type="text"] {
  width: 100%;
  padding: 12px 16px;
  background: #f9fafb;
  border: 1.5px solid #e5e7eb;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition);
  outline: none;
}

.login-card input:focus,
.password-setup-card input:focus {
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1), 0 0 20px rgba(67, 97, 238, 0.15);
}

.login-card input::placeholder,
.password-setup-card input::placeholder {
  color: var(--text-muted);
}

/* 记住我复选框 */
.remember-me {
  margin-bottom: 12px !important;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.checkmark {
  position: relative;
  width: 18px;
  height: 18px;
  border: 1.5px solid #d1d5db;
  border-radius: 4px;
  background: #f9fafb;
}

/* 按钮样式 */
.login-card .btn,
.password-setup-card .btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.login-card .btn-primary,
.password-setup-card .btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #5a6cf5 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(67, 97, 238, 0.35);
}

.login-card .btn-primary:hover,
.password-setup-card .btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

.login-card .btn-primary::before,
.password-setup-card .btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.login-card .btn-primary:hover::before,
.password-setup-card .btn-primary:hover::before {
  left: 100%;
}

.login-card .btn-secondary,
.password-setup-card .btn-secondary {
  background: #f3f4f6;
  color: var(--text-secondary);
  margin-top: 12px;
}

.login-card .btn-secondary:hover,
.password-setup-card .btn-secondary:hover {
  background: #e5e7eb;
  color: var(--text-primary);
}

/* 错误提示 */
.login-error {
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 16px;
  text-align: center;
  display: none;
  padding: 10px;
  background: #fef2f2;
  border-radius: var(--radius-sm);
  animation: shake 0.5s ease;
}

/* 卡片抖动动画 */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
  20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
  animation: shake 0.5s ease;
}

/* 登录成功淡出 */
.fade-out {
  animation: fadeOut 0.4s ease forwards;
}

@keyframes fadeOut {
  to {
    opacity: 0;
    transform: scale(0.95);
  }
}

/* ============================================
   密码设置页面
   ============================================ */
.password-setup-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  position: relative;
  overflow: hidden;
}

/* ============================================
   管理面板主布局
   ============================================ */
.admin-container {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
  width: 260px;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  transition: var(--transition-slow);
}

.admin-sidebar .sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-sidebar .sidebar-header .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--sidebar-accent) 0%, #9b6dff 100%);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-sidebar .sidebar-header .logo-icon i {
  font-size: 18px;
  color: #fff;
}

.admin-sidebar .sidebar-header span {
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.3px;
}

/* 导航区域 */
.admin-sidebar .nav-section {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.admin-sidebar .nav-group {
  margin-bottom: 8px;
}

.admin-sidebar .nav-group-title {
  padding: 8px 20px;
  font-size: 11px;
  font-weight: 700;
  color: var(--sidebar-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.admin-sidebar .nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--sidebar-text);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  user-select: none;
}

.admin-sidebar .nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 0;
  background: var(--sidebar-accent);
  border-radius: 0 3px 3px 0;
  transition: var(--transition);
}

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

.admin-sidebar .nav-item:hover::before {
  height: 24px;
  transform: translateY(-50%) scaleY(1);
}

.admin-sidebar .nav-item.active {
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.15) 0%, transparent 100%);
  color: var(--sidebar-accent-light);
}

.admin-sidebar .nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--sidebar-accent);
  border-radius: 0 3px 3px 0;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from { height: 0; }
  to { height: 24px; }
}

.admin-sidebar .nav-item i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.admin-sidebar .nav-item .nav-badge {
  margin-left: auto;
  background: var(--sidebar-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
}

/* 侧边栏底部 */
.admin-sidebar .sidebar-footer {
  padding: 20px;
  border-top: 1px solid var(--sidebar-border);
}

.admin-sidebar .sidebar-footer .version-info {
  font-size: 12px;
  color: var(--sidebar-text-dim);
  text-align: center;
  margin-bottom: 12px;
}

.admin-sidebar .back-home {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--sidebar-text);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  background: var(--sidebar-surface);
}

.admin-sidebar .back-home:hover {
  background: var(--sidebar-border);
  color: #ffffff;
}

/* 主内容区 */
.admin-main {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.admin-header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--card-border);
  padding: 0 28px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--card-shadow);
}

.admin-header h1 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

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

.admin-header .user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--card-border);
  transition: var(--transition);
}

.admin-header .user-avatar:hover {
  border-color: var(--sidebar-accent);
  transform: scale(1.05);
}

.admin-content {
  flex: 1;
  padding: 28px;
  max-width: 1100px;
  width: 100%;
}

/* ============================================
   Dashboard 首页
   ============================================ */
.dashboard-welcome {
  background: linear-gradient(135deg, var(--sidebar-accent) 0%, #6366f1 100%);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  color: #fff;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.3);
}

.dashboard-welcome .welcome-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.3);
}

.dashboard-welcome .welcome-text h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.dashboard-welcome .welcome-text p {
  font-size: 14px;
  opacity: 0.85;
}

/* 统计卡片网格 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
  border: 1px solid var(--card-border);
  cursor: pointer;
}

.stat-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-4px);
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: var(--transition);
}

.stat-card:hover .stat-icon {
  transform: scale(1.1);
}

.stat-card .stat-icon i {
  font-size: 22px;
}

.stat-card .stat-icon.purple {
  background: #f3e8ff;
  color: var(--sidebar-accent);
}

.stat-card .stat-icon.blue {
  background: #dbeafe;
  color: var(--primary);
}

.stat-card .stat-icon.green {
  background: #d1fae5;
  color: var(--success);
}

.stat-card .stat-icon.orange {
  background: #fef3c7;
  color: var(--warning);
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 500;
}

.stat-card .stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

/* 快捷操作区域 */
.quick-actions {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--card-border);
}

.quick-actions .section-header {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.quick-actions .section-header i {
  color: var(--sidebar-accent);
}

.quick-actions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.quick-action-card {
  padding: 20px;
  background: var(--content-bg);
  border-radius: var(--radius-md);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.quick-action-card:hover {
  background: #fff;
  border-color: var(--sidebar-accent);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.1);
}

.quick-action-card:hover .action-icon {
  transform: scale(1.1);
}

.quick-action-card .action-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #f3e8ff 0%, #e0e7ff 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  transition: var(--transition);
}

.quick-action-card .action-icon i {
  font-size: 22px;
  color: var(--sidebar-accent);
}

.quick-action-card .action-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.quick-action-card .action-desc {
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================
   卡片与区块
   ============================================ */
.admin-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 0;
  margin-bottom: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--card-border);
  overflow: hidden;
}

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

.admin-card .card-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-card .card-header h3 i {
  color: var(--sidebar-accent);
  font-size: 18px;
}

.admin-card .card-body {
  padding: 24px;
}

/* 当前模板徽章 */
.current-template-badge {
  font-size: 12px;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--sidebar-accent) 0%, #6366f1 100%);
  color: #fff;
  border-radius: 20px;
  font-weight: 500;
}

/* ============================================
   表单样式
   ============================================ */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-row.single {
  grid-template-columns: 1fr;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 11px 14px;
  background: #ffffff;
  border: 1.5px solid #e5e7eb;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-group .form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.form-group .form-preview {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--content-bg);
  border-radius: var(--radius-sm);
}

.form-group .form-preview img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--card-border);
}

.form-group .form-preview span {
  font-size: 12px;
  color: var(--text-muted);
}

/* 表单操作按钮 */
.form-actions {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--card-border);
}

/* 单选按钮组 */
.radio-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.radio-option input[type="radio"] {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
}

.radio-option span {
  font-size: 14px;
  color: var(--text-primary);
  font-weight: 500;
}

/* ============================================
   导航链接列表
   ============================================ */
.nav-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: var(--content-bg);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}

.nav-list-item:hover {
  background: #ffffff;
  border-color: var(--card-border);
  box-shadow: var(--card-shadow);
}

.nav-list-item .nav-name {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-list-item .nav-url {
  flex: 2;
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-list-item .nav-actions {
  display: flex;
  gap: 8px;
}

.nav-list-item .btn-icon {
  width: 34px;
  height: 34px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: var(--transition);
}

.btn-icon.edit {
  background: #e0e7ff;
  color: var(--primary);
}
.btn-icon.edit:hover {
  background: var(--primary);
  color: #fff;
}

.btn-icon.delete {
  background: #fee2e2;
  color: var(--danger);
}
.btn-icon.delete:hover {
  background: var(--danger);
  color: #fff;
}

/* 添加导航表单 */
.add-nav-form {
  margin-top: 16px;
  padding: 20px;
  background: var(--content-bg);
  border: 2px dashed #d1d5db;
  border-radius: var(--radius-md);
  display: none;
}

.add-nav-form.show {
  display: block;
  animation: fadeIn 0.25s ease;
}

.add-nav-form .form-row {
  margin-bottom: 16px;
}

/* ============================================
   模板管理样式
   ============================================ */
.template-intro {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.template-card {
  background: var(--card-bg);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.template-card:hover {
  border-color: var(--sidebar-accent-light);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.15);
  transform: translateY(-2px);
}

.template-card.active {
  border-color: var(--sidebar-accent);
  box-shadow: 0 8px 24px rgba(124, 58, 237, 0.2);
}

.template-preview {
  height: 160px;
  position: relative;
  overflow: hidden;
}

.template-preview-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.preview-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  margin: 0 auto 12px;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.preview-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.preview-line {
  height: 4px;
  width: 80px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
}

.preview-line.short {
  width: 50px;
}

/* 选中指示器 */
.active-indicator {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 28px;
  height: 28px;
  background: var(--sidebar-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  animation: popIn 0.3s ease;
}

@keyframes popIn {
  0% { transform: scale(0); }
  70% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.template-info {
  padding: 16px;
}

.template-name {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.template-name .name-en {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.template-name .name-cn {
  font-size: 12px;
  padding: 2px 8px;
  background: var(--sidebar-accent);
  color: #fff;
  border-radius: 10px;
}

.template-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.template-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.feature-tag {
  font-size: 11px;
  padding: 3px 8px;
  background: var(--content-bg);
  color: var(--text-muted);
  border-radius: 4px;
}

.template-actions {
  display: flex;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--card-border);
}

/* 模板预览弹窗 */
.template-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}

.preview-content {
  position: relative;
  width: 90%;
  max-width: 1200px;
  height: 80%;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--sidebar-bg);
  color: #fff;
}

.preview-header button {
  background: none;
  border: none;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  opacity: 0.8;
  transition: var(--transition);
}

.preview-header button:hover {
  opacity: 1;
}

.preview-content iframe {
  width: 100%;
  height: calc(100% - 56px);
  border: none;
}

/* ============================================
   背景预览
   ============================================ */
.bg-preview-fallback {
  background: linear-gradient(135deg, #e0e7ff 0%, #f3e8ff 50%, #fce7f3 100%);
}

/* ============================================
   按钮样式
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #5a6cf5 100%);
  color: #fff;
  box-shadow: 0 2px 8px rgba(67, 97, 238, 0.25);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(67, 97, 238, 0.35);
}

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover {
  filter: brightness(1.1);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  filter: brightness(1.1);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1.5px solid #e5e7eb;
}
.btn-ghost:hover {
  background: var(--content-bg);
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.btn-sm {
  padding: 7px 14px;
  font-size: 13px;
}

/* 保存按钮状态 */
.btn.saving {
  opacity: 0.7;
  cursor: wait;
  pointer-events: none;
}
.btn.saved {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%) !important;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25) !important;
}

/* ============================================
   Toast 提示
   ============================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  animation: slideInRight 0.3s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
  max-width: 380px;
}

.toast.success {
  background: #ffffff;
  color: var(--text-primary);
  border-left: 4px solid var(--success);
}

.toast.error {
  background: #ffffff;
  color: var(--text-primary);
  border-left: 4px solid var(--danger);
}

.toast.warning {
  background: #ffffff;
  color: var(--text-primary);
  border-left: 4px solid var(--warning);
}

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

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

.toast.hiding {
  animation: slideOutRight 0.3s ease forwards;
}

/* ============================================
   Tab 切换
   ============================================ */
.tab-section {
  display: none;
}

.tab-section.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================
   预览区块
   ============================================ */
.preview-box {
  background: var(--content-bg);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 16px;
}

.preview-box label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.preview-box #bgPreview {
  height: 140px;
  background: center/cover no-repeat;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
  font-size: 14px;
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.4;
}

/* ============================================
   保存状态指示
   ============================================ */
.save-indicator {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}

.save-indicator .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.save-indicator.saving .dot {
  background: var(--warning);
  animation: pulse 1s infinite;
}

.save-indicator.saved .dot {
  background: var(--success);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================
   分割线
   ============================================ */
.divider {
  height: 1px;
  background: var(--card-border);
  margin: 24px 0;
}

/* ============================================
   响应式
   ============================================ */
/* 移动端侧边栏遮罩层 */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  -webkit-tap-highlight-color: transparent;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.visible {
  display: block;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  margin-right: 8px;
}

@media (max-width: 768px) {
  .admin-sidebar {
    transform: translateX(-100%);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.2);
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .admin-main {
    margin-left: 0;
  }
  .admin-content {
    padding: 20px 16px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .admin-header {
    padding: 0 16px;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .quick-actions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dashboard-welcome {
    flex-direction: column;
    text-align: center;
    padding: 24px 20px;
  }
  .template-grid {
    grid-template-columns: 1fr;
  }
  .template-actions {
    flex-direction: column;
  }
  .template-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .quick-actions-grid {
    grid-template-columns: 1fr;
  }
  .login-card,
  .password-setup-card {
    padding: 32px 24px;
  }
  .login-card .icon-circle,
  .password-setup-card .icon-circle {
    width: 64px;
    height: 64px;
  }
  .login-card .icon-circle .icon-box,
  .password-setup-card .icon-circle .lock-icon {
    width: 56px;
    height: 56px;
  }
  .login-card .icon-circle .icon-box i,
  .password-setup-card .icon-circle .lock-icon i {
    font-size: 24px;
  }
}