增加帖子详情api与前端页面，需完善按钮与显示
Change-Id: I84d3aace81055b8dc372f91942523d163b1ec463
diff --git a/JWLLL/API_front/src/style/PostDetail.css b/JWLLL/API_front/src/style/PostDetail.css
new file mode 100644
index 0000000..6257670
--- /dev/null
+++ b/JWLLL/API_front/src/style/PostDetail.css
@@ -0,0 +1,322 @@
+/* 帖子详情页面容器 */
+.post-detail {
+ max-width: 800px;
+ margin: 0 auto;
+ background: #fff;
+ min-height: 100vh;
+ display: flex;
+ flex-direction: column;
+}
+
+/* 加载状态 */
+.loading-container {
+ display: flex;
+ flex-direction: column;
+ align-items: center;
+ justify-content: center;
+ padding: 60px 20px;
+ color: #666;
+}
+
+.loading-spinner {
+ width: 40px;
+ height: 40px;
+ border: 3px solid #f3f3f3;
+ border-top: 3px solid #ff4757;
+ border-radius: 50%;
+ animation: spin 1s linear infinite;
+ margin-bottom: 20px;
+}
+
+@keyframes spin {
+ 0% { transform: rotate(0deg); }
+ 100% { transform: rotate(360deg); }
+}
+
+/* 错误状态 */
+.error-container {
+ text-align: center;
+ padding: 60px 20px;
+ color: #666;
+}
+
+.error-container h2 {
+ margin-bottom: 16px;
+ color: #333;
+}
+
+/* 顶部导航栏 */
+.post-header {
+ display: flex;
+ justify-content: space-between;
+ align-items: center;
+ padding: 16px 20px;
+ border-bottom: 1px solid #eee;
+ background: #fff;
+ position: sticky;
+ top: 0;
+ z-index: 100;
+}
+
+.back-btn {
+ display: flex;
+ align-items: center;
+ gap: 8px;
+ padding: 8px 16px;
+ border: none;
+ background: #f8f9fa;
+ border-radius: 20px;
+ cursor: pointer;
+ transition: background-color 0.2s;
+ font-size: 14px;
+ color: #333;
+}
+
+.back-btn:hover {
+ background: #e9ecef;
+}
+
+.header-actions {
+ display: flex;
+ gap: 8px;
+}
+
+.action-btn {
+ display: flex;
+ align-items: center;
+ justify-content: center;
+ width: 40px;
+ height: 40px;
+ border: none;
+ background: #f8f9fa;
+ border-radius: 50%;
+ cursor: pointer;
+ transition: background-color 0.2s;
+ color: #666;
+}
+
+.action-btn:hover {
+ background: #e9ecef;
+}
+
+.action-btn.active {
+ background: #ff4757;
+ color: #fff;
+}
+
+/* 主要内容区 */
+.post-content {
+ flex: 1;
+ padding: 20px;
+}
+
+/* 帖子标题 */
+.post-title {
+ font-size: 28px;
+ font-weight: 700;
+ line-height: 1.3;
+ margin-bottom: 20px;
+ color: #2c3e50;
+}
+
+/* 作者信息和元数据 */
+.post-meta {
+ display: flex;
+ justify-content: space-between;
+ align-items: center;
+ margin-bottom: 20px;
+ padding-bottom: 16px;
+ border-bottom: 1px solid #eee;
+}
+
+.author-info {
+ display: flex;
+ align-items: center;
+ gap: 12px;
+}
+
+.avatar {
+ width: 48px;
+ height: 48px;
+ border-radius: 50%;
+ background: linear-gradient(135deg, #ff4757, #ff6b7a);
+ display: flex;
+ align-items: center;
+ justify-content: center;
+ color: #fff;
+ font-size: 18px;
+ font-weight: 600;
+}
+
+.author-details {
+ display: flex;
+ flex-direction: column;
+ gap: 4px;
+}
+
+.author-name {
+ font-size: 16px;
+ font-weight: 600;
+ color: #2c3e50;
+}
+
+.post-date {
+ font-size: 14px;
+ color: #7f8c8d;
+}
+
+.post-stats {
+ display: flex;
+ gap: 16px;
+}
+
+.stat-item {
+ display: flex;
+ align-items: center;
+ gap: 4px;
+ color: #7f8c8d;
+ font-size: 14px;
+}
+
+/* 标签 */
+.post-tags {
+ display: flex;
+ flex-wrap: wrap;
+ gap: 8px;
+ margin-bottom: 24px;
+}
+
+.tag {
+ padding: 4px 12px;
+ background: #f8f9fa;
+ border-radius: 12px;
+ font-size: 12px;
+ color: #666;
+ border: 1px solid #dee2e6;
+}
+
+/* 帖子正文 */
+.post-body {
+ line-height: 1.8;
+ font-size: 16px;
+ color: #2c3e50;
+ margin-bottom: 24px;
+}
+
+.post-body p {
+ margin-bottom: 16px;
+}
+
+/* 类别信息 */
+.post-category {
+ display: flex;
+ align-items: center;
+ gap: 8px;
+ padding: 12px 16px;
+ background: #f8f9fa;
+ border-radius: 8px;
+ margin-bottom: 20px;
+}
+
+.category-label {
+ font-size: 14px;
+ color: #7f8c8d;
+}
+
+.category-name {
+ font-size: 14px;
+ font-weight: 600;
+ color: #ff4757;
+}
+
+/* 底部操作栏 */
+.post-footer {
+ border-top: 1px solid #eee;
+ background: #fff;
+ position: sticky;
+ bottom: 0;
+}
+
+.action-bar {
+ display: flex;
+ justify-content: space-around;
+ padding: 12px 20px;
+}
+
+.action-button {
+ display: flex;
+ flex-direction: column;
+ align-items: center;
+ gap: 4px;
+ padding: 8px 12px;
+ border: none;
+ background: transparent;
+ cursor: pointer;
+ transition: all 0.2s;
+ color: #7f8c8d;
+ font-size: 12px;
+ border-radius: 8px;
+ min-width: 60px;
+}
+
+.action-button:hover {
+ background: #f8f9fa;
+ color: #2c3e50;
+}
+
+.action-button.liked {
+ color: #ff4757;
+}
+
+.action-button.bookmarked {
+ color: #ffa726;
+}
+
+/* 响应式设计 */
+@media (max-width: 768px) {
+ .post-detail {
+ margin: 0;
+ }
+
+ .post-title {
+ font-size: 24px;
+ }
+
+ .post-content {
+ padding: 16px;
+ }
+
+ .post-header {
+ padding: 12px 16px;
+ }
+
+ .post-meta {
+ flex-direction: column;
+ align-items: flex-start;
+ gap: 12px;
+ }
+
+ .post-stats {
+ align-self: flex-end;
+ }
+
+ .action-bar {
+ padding: 8px 16px;
+ }
+
+ .action-button {
+ font-size: 11px;
+ min-width: 50px;
+ }
+}
+
+/* 平滑滚动 */
+html {
+ scroll-behavior: smooth;
+}
+
+/* 选中文本样式 */
+::selection {
+ background: rgba(255, 71, 87, 0.2);
+ color: #2c3e50;
+}