/* 后台管理样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #667eea;
  --primary-dark: #5a67d8;
  --success: #07C160;
  --danger: #ff4757;
  --warning: #ffa502;
  --bg: #0f0f0f;
  --card-bg: #1a1a1a;
  --text: #ffffff;
  --text-secondary: #888888;
  --border: #333333;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  min-height: 100vh;
  color: var(--text);
}

/* 登录页面 */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.login-box {
  background: var(--card-bg);
  padding: 40px;
  border-radius: 20px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 400px;
  text-align: center;
  border: 1px solid var(--border);
}

.login-box h1 {
  margin-bottom: 10px;
  color: var(--primary);
}

.login-box p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.input-group {
  margin-bottom: 20px;
  text-align: left;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.input-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  transition: border-color 0.3s;
  background: #0a0a0a;
  color: var(--text);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--primary);
  color: white;
  width: 100%;
  justify-content: center;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

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

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

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

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

/* 管理面板 */
.admin-container {
  display: none;
}

/* 顶部导航 */
.navbar {
  background: var(--card-bg);
  padding: 15px 30px;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

.navbar-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-actions {
  display: flex;
  gap: 10px;
}

/* 主内容区 */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 450px;
  gap: 30px;
}

@media (max-width: 1100px) {
  .main-content {
    grid-template-columns: 1fr;
  }
}

/* 卡片 */
.card {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}

.card-header {
  padding: 20px 25px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h2 {
  font-size: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  background: var(--primary);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.card-body {
  padding: 25px;
}

/* 内容列表 */
.contents-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.content-card {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  background: #0f0f0f;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

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

/* 拖拽排序样式 */
.content-card.dragging {
  opacity: 0.5;
  transform: scale(1.02);
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.content-card.drag-over {
  border-color: var(--success);
  background: rgba(7, 193, 96, 0.1);
}

.content-card .drag-handle {
  cursor: grab;
  padding: 8px;
  margin-right: 8px;
  display: flex;
  align-items: center;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.content-card:hover .drag-handle {
  opacity: 1;
}

.content-card .drag-handle:active {
  cursor: grabbing;
}

.content-card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-right: 12px;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.1);
}

.content-card-info {
  flex: 1;
  min-width: 0;
}

.content-card-title {
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 14px;
}

.content-card-subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.content-card-actions {
  display: flex;
  gap: 5px;
}

.content-card-actions button {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  background: transparent;
  font-size: 14px;
}

.content-card-actions .move-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.content-card-actions .move-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.2);
}

.content-card-actions .move-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.content-card-actions .edit-btn:hover {
  background: rgba(102, 126, 234, 0.2);
}

.content-card-actions .delete-btn:hover {
  background: rgba(255, 71, 87, 0.2);
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 64px;
  margin-bottom: 20px;
  opacity: 0.5;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  transition: all 0.3s;
  background: #0a0a0a;
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

/* 预览区域 */
.preview-frame {
  width: 100%;
  height: 700px;
  border: none;
  border-radius: 12px;
  background: #0a0a0a;
}

/* 提示消息 */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text);
  color: #0a0a0a;
  padding: 15px 30px;
  border-radius: 10px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s;
  z-index: 1000;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

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

.toast.error {
  background: var(--danger);
  color: white;
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
  backdrop-filter: blur(5px);
}

.modal.show {
  display: flex;
}

.modal-content {
  background: var(--card-bg);
  border-radius: 20px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow: hidden;
  animation: modalIn 0.3s ease-out;
  border: 1px solid var(--border);
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.modal-header {
  padding: 20px 25px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all 0.3s;
}

.modal-close:hover {
  background: var(--border);
}

.modal-body {
  padding: 25px;
  overflow-y: auto;
  max-height: 60vh;
}

.modal-footer {
  padding: 20px 25px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* 个人资料编辑 */
.profile-edit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.avatar-upload {
  position: relative;
  width: 100px;
  height: 100px;
}

.avatar-upload img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--border);
}

.avatar-upload input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.avatar-hint {
  position: absolute;
  bottom: 0;
  right: 0;
  background: var(--primary);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  pointer-events: none;
}

/* ==================== 主题设置 ==================== */

/* 背景预览 */
.bg-preview {
  width: 100%;
  height: 150px;
  border-radius: 10px;
  border: 2px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s;
  background: #0a0a0a;
}

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

.bg-preview-placeholder {
  text-align: center;
  color: var(--text-secondary);
}

.bg-preview-placeholder span {
  font-size: 48px;
  display: block;
  margin-bottom: 10px;
}

.bg-preview-placeholder p {
  font-size: 14px;
}

/* 颜色选择器 */
.color-selector {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.color-option {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid transparent;
  transition: all 0.3s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.color-option:hover {
  transform: scale(1.15);
}

.color-option.selected {
  border-color: white;
  box-shadow: 0 0 0 3px var(--primary), 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* 预设背景网格 */
.preset-bg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.preset-bg {
  aspect-ratio: 16/10;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s;
  border: 2px solid transparent;
}

.preset-bg:hover {
  transform: scale(1.05);
  border-color: white;
}

/* ==================== 历史版本列表 ==================== */

.history-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 400px;
  overflow-y: auto;
}

.history-item {
  background: #0f0f0f;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 15px;
  transition: all 0.3s;
}

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

.history-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.history-item-folder {
  font-weight: 600;
  color: var(--primary);
  font-size: 14px;
}

.history-item-date {
  font-size: 12px;
  color: var(--text-secondary);
}

.history-item-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.history-item-info-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.history-item-info-value {
  font-size: 12px;
  color: var(--text);
}

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

.history-item-actions button {
  flex: 1;
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.3s;
}

.history-item-actions .btn-open {
  background: rgba(102, 126, 234, 0.2);
  color: var(--primary);
}

.history-item-actions .btn-open:hover {
  background: rgba(102, 126, 234, 0.3);
}

.history-item-actions .btn-import {
  background: rgba(7, 193, 96, 0.2);
  color: var(--success);
}

.history-item-actions .btn-import:hover {
  background: rgba(7, 193, 96, 0.3);
}

.history-item-actions .btn-delete {
  background: rgba(255, 71, 87, 0.2);
  color: var(--danger);
}

.history-item-actions .btn-delete:hover {
  background: rgba(255, 71, 87, 0.3);
}

/* ==================== 文本编辑器样式 ==================== */

.text-editor {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 15px;
}

.text-editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 15px;
  background: #0f0f0f;
  border-bottom: 1px solid var(--border);
}

.text-editor-toolbar .toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.text-editor-toolbar .toolbar-label {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.text-editor-toolbar select,
.text-editor-toolbar input[type="number"] {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #1a1a1a;
  color: var(--text);
  font-size: 13px;
  min-width: 80px;
}

.text-editor-toolbar input[type="color"] {
  width: 36px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
}

.text-editor-content {
  min-height: 150px;
  padding: 15px;
  background: #0a0a0a;
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  outline: none;
  resize: vertical;
}

.text-editor-content:focus {
  background: #0f0f0f;
}

.html-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 15px;
  background: rgba(102, 126, 234, 0.1);
  border-top: 1px solid var(--border);
}

.html-toggle label {
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
}

.html-toggle input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

/* 特效预览 */
.effect-preview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.effect-option {
  padding: 8px;
  text-align: center;
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 12px;
}

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

.effect-option.selected {
  border-color: var(--primary);
  background: rgba(102, 126, 234, 0.2);
}

/* 毛玻璃设置 */
.blur-settings {
  margin-top: 15px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}

.blur-settings .slider-group {
  display: flex;
  align-items: center;
  gap: 15px;
}

.blur-settings input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  -webkit-appearance: none;
}

.blur-settings input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
}

.blur-settings .blur-value {
  min-width: 40px;
  text-align: center;
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
}