src/components/HelpDetail.css

/* HelpDetail.css - 个性化版本 */
.help-detail-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 返回按钮 - 渐变风格 */
.back-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 25px;
  box-shadow: 0 2px 8px rgba(30, 60, 114, 0.2);
}

.back-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 60, 114, 0.3);
}

.back-button::before {
  content: "←";
}

/* 帖子卡片 - 3D悬浮效果 */
.help-post {
  background: white;
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 30px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.help-post:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
}

.help-post.solved::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(to bottom, #52c41a, #a0d911);
}

/* 帖子头部 - 圆形头像+渐变背景 */
.post-header {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  position: relative;
}

.post-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 15px;
  object-fit: cover;
  border: 3px solid rgba(30, 60, 114, 0.2);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
}

.post-meta {
  flex: 1;
}

.post-author {
  font-weight: 700;
  color: #1e3c72;
  font-size: 18px;
}

.post-date {
  color: #666;
  font-size: 14px;
  margin-top: 3px;
}

/* 已解决徽章 - 闪光效果 */
.solved-badge {
  background: linear-gradient(135deg, #52c41a 0%, #a0d911 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  position: absolute;
  right: 0;
  top: 0;
  box-shadow: 0 2px 8px rgba(82, 196, 26, 0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(82, 196, 26, 0); }
  100% { box-shadow: 0 0 0 0 rgba(82, 196, 26, 0); }
}

/* 删除按钮 - 危险色 */
.delete-button {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 6px 12px;
  background: linear-gradient(135deg, #ff5e62 0%, #ff2400 100%);
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.delete-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 94, 98, 0.3);
}

/* 帖子标题 - 渐变文字 */
.post-title {
  font-size: 28px;
  margin: 0 0 20px;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

/* 帖子内容 - 更好的阅读体验 */
.post-content {
  line-height: 1.8;
  color: #333;
  font-size: 16px;
  margin-bottom: 25px;
}

.post-content p {
  margin-bottom: 15px;
}

/* 图片容器 - 圆角+阴影 */
.post-image-container, .comment-image-container {
  margin: 20px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}

.post-image-container:hover, .comment-image-container:hover {
  transform: scale(1.02);
}

.post-image, .comment-image {
  width: 100%;
  height: auto;
  max-height: 500px;
  object-fit: contain;
  display: block;
}

/* 帖子操作按钮 - 悬浮效果 */
.post-actions {
  display: flex;
  gap: 15px;
  margin-top: 25px;
}

.like-button, .solve-button {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.like-button {
  background: linear-gradient(135deg, #f6f7f9 0%, #e9ebee 100%);
  color: #666;
}

.like-button:hover {
  background: linear-gradient(135deg, #ebedf0 0%, #d8dadf 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.like-button.liked {
  background: linear-gradient(135deg, #e6f7ff 0%, #bae7ff 100%);
  color: #1890ff;
}

.solve-button {
  background: linear-gradient(135deg, #f6ffed 0%, #d9f7be 100%);
  color: #52c41a;
}

.solve-button:hover {
  background: linear-gradient(135deg, #e6ffd1 0%, #b7eb8f 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(82, 196, 26, 0.2);
}

.solve-button.solved {
  background: linear-gradient(135deg, #52c41a 0%, #a0d911 100%);
  color: white;
}

/* 评论区域 */
.comments-section {
  background: white;
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.comments-section h2 {
  font-size: 22px;
  color: #1e3c72;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #f0f2f5;
}

/* 评论表单 - 现代设计 */
.comment-form {
  margin-bottom: 30px;
}

.comment-form textarea {
  width: 100%;
  padding: 15px;
  border: 2px solid #f0f2f5;
  border-radius: 8px;
  resize: vertical;
  min-height: 100px;
  margin-bottom: 15px;
  font-size: 15px;
  transition: all 0.3s;
}

.comment-form textarea:focus {
  border-color: #1e3c72;
  box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.2);
  outline: none;
}

.comment-form button[type="submit"] {
  padding: 12px 24px;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.comment-form button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 60, 114, 0.3);
}

/* 图片上传按钮 - 现代风格 */
.upload-image-btn {
  position: relative;
  margin-bottom: 15px;
}

.upload-image-btn input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.upload-image-btn label {
  display: inline-block;
  padding: 8px 16px;
  background: #f0f2f5;
  border-radius: 6px;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
}

.upload-image-btn label:hover {
  background: #e4e6eb;
}

/* 评论列表 - 卡片式设计 */
.comment-list {
  margin-top: 25px;
}

.comment-item {
  display: flex;
  padding: 20px;
  margin-bottom: 20px;
  background: #f9fafc;
  border-radius: 10px;
  transition: all 0.3s;
  position: relative;
}

.comment-item:hover {
  background: #f0f4f8;
  transform: translateX(5px);
}

.comment-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 15px;
  object-fit: cover;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
  flex-shrink: 0;
}

.comment-content {
  flex: 1;
}

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

.comment-user {
  font-weight: 700;
  color: #1e3c72;
}

.reply-to {
  color: #666;
  font-size: 14px;
  margin-left: 10px;
}

.comment-time {
  color: #888;
  font-size: 13px;
}

.comment-text {
  line-height: 1.7;
  color: #333;
  margin-bottom: 15px;
}

.comment-actions {
  display: flex;
  gap: 15px;
}

.comment-actions button {
  background: none;
  border: none;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s;
  padding: 5px 10px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.comment-actions button:hover {
  color: #1e3c72;
  background: rgba(30, 60, 114, 0.1);
}

.delete-comment-btn {
  color: #ff4d4f !important;
}

.delete-comment-btn:hover {
  background: rgba(255, 77, 79, 0.1) !important;
}

/* 回复弹窗 - 现代化设计 */
.reply-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
}

.reply-modal {
  background: white;
  padding: 25px;
  border-radius: 12px;
  width: 500px;
  max-width: 90%;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  position: relative;
}

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

.modal-header h3 {
  margin: 0;
  color: #1e3c72;
  font-size: 20px;
}

.close-modal {
  background: none;
  border: none;
  font-size: 24px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s;
}

.close-modal:hover {
  color: #1e3c72;
  transform: rotate(90deg);
}

.reply-modal textarea {
  width: 100%;
  padding: 15px;
  border: 2px solid #f0f2f5;
  border-radius: 8px;
  resize: vertical;
  min-height: 120px;
  margin-bottom: 15px;
  font-size: 15px;
  transition: all 0.3s;
}

.reply-modal textarea:focus {
  border-color: #1e3c72;
  box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.2);
  outline: none;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 15px;
}

.cancel-btn {
  padding: 10px 20px;
  background: #f5f5f5;
  color: #666;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.cancel-btn:hover {
  background: #e0e0e0;
}

.submit-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 60, 114, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .help-detail-container {
    padding: 15px;
  }
  
  .post-title {
    font-size: 24px;
  }
  
  .post-actions {
    flex-direction: column;
  }
  
  .comment-item {
    flex-direction: column;
  }
  
  .comment-avatar {
    margin-bottom: 15px;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.help-post, .comments-section {
  animation: fadeIn 0.5s ease-out forwards;
}