/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  padding: 20px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  padding: 30px;
}

/* 头部 */
header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid #f0f0f0;
}

header h1 {
  color: #667eea;
  font-size: 2.5em;
  margin-bottom: 10px;
}

.subtitle {
  color: #666;
  font-size: 1.1em;
}

/* 表单样式 */
.form-section {
  background: #f8f9fa;
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 40px;
}

.form-section h2 {
  color: #333;
  margin-bottom: 20px;
  font-size: 1.5em;
}

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

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: #555;
}

.required {
  color: #e74c3c;
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="password"],
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 2px solid #ddd;
  border-radius: 6px;
  font-size: 1em;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #667eea;
}

.form-group input[type="file"] {
  padding: 8px;
}

.hint {
  display: block;
  margin-top: 5px;
  font-size: 0.9em;
  color: #888;
}

.char-count {
  text-align: right;
  color: #667eea;
}

/* 图片预览 */
.image-preview {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.preview-item {
  position: relative;
  width: 100px;
  height: 100px;
}

.preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid #ddd;
}

/* 按钮样式 */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 1em;
  cursor: pointer;
  transition: all 0.3s;
  font-weight: 600;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
  background: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background: #5a6268;
}

.btn-edit {
  background: #28a745;
  color: white;
  padding: 8px 16px;
  font-size: 0.9em;
}

.btn-edit:hover {
  background: #218838;
}

.btn-delete {
  background: #dc3545;
  color: white;
  padding: 8px 16px;
  font-size: 0.9em;
  margin-left: 5px;
}

.btn-delete:hover {
  background: #c82333;
}

/* 数据展示区 */
.data-section {
  margin-top: 40px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.section-header h2 {
  color: #333;
  font-size: 1.5em;
}

/* 表格样式 */
.table-container {
  overflow-x: auto;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

thead {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

th {
  padding: 15px 10px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}

th.sortable:hover {
  background: rgba(255, 255, 255, 0.1);
}

.sort-icon {
  margin-left: 5px;
  font-size: 0.9em;
  color: rgba(255, 255, 255, 0.6);
}

.sort-icon.sort-asc,
.sort-icon.sort-desc {
  color: #fff;
  font-weight: bold;
}

td {
  padding: 12px 10px;
  border-bottom: 1px solid #e9ecef;
}

tbody tr:hover {
  background: #f8f9fa;
}

.loading {
  text-align: center;
  padding: 40px;
  color: #999;
  font-style: italic;
}

/* 特殊单元格样式 */
.has-naga {
  color: #28a745;
  font-weight: 600;
}

.no-naga {
  color: #dc3545;
  font-weight: 600;
}

.link-cell {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-cell a {
  color: #667eea;
  text-decoration: none;
}

.link-cell a:hover {
  text-decoration: underline;
}

.note-cell {
  max-width: 300px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 图片缩略图 */
.image-thumbs {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.thumb-img {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 4px;
  cursor: pointer;
  border: 2px solid #ddd;
  transition: transform 0.2s;
}

.thumb-img:hover {
  transform: scale(1.1);
  border-color: #667eea;
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
  background-color: #fefefe;
  margin: 5% auto;
  padding: 30px;
  border-radius: 12px;
  width: 90%;
  max-width: 800px;
  position: relative;
  animation: slideDown 0.3s;
}

@keyframes slideDown {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.close {
  position: absolute;
  right: 20px;
  top: 20px;
  color: #aaa;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: color 0.3s;
}

.close:hover {
  color: #000;
}

.modal-images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.modal-images img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 只读信息 */
.readonly-info {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 6px;
  border-left: 4px solid #667eea;
}

.readonly-info p {
  margin: 5px 0;
  color: #555;
}

.readonly-info strong {
  color: #333;
}

/* 表单操作按钮组 */
.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* 已上传图片展示 */
.existing-images {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.existing-image-item {
  position: relative;
  width: 100px;
  height: 100px;
}

.existing-image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  border: 2px solid #ddd;
}

.btn-remove-image {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #dc3545;
  color: white;
  border: 2px solid white;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.btn-remove-image:hover {
  background: #c82333;
}

.no-images {
  color: #999;
  font-style: italic;
  padding: 10px;
}

/* 认证区域 */
.auth-section {
  max-width: 400px;
  margin: 50px auto;
  background: #f8f9fa;
  padding: 30px;
  border-radius: 8px;
  text-align: center;
}

.auth-section h2 {
  margin-bottom: 20px;
  color: #333;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  header h1 {
    font-size: 1.8em;
  }

  th, td {
    padding: 8px 5px;
    font-size: 0.9em;
  }

  .modal-content {
    width: 95%;
    padding: 20px;
  }

  .modal-images {
    grid-template-columns: 1fr;
  }
}