  <style>
    /* 基础重置与字体定义 - 与主页保持一致 */
    @font-face {
      font-family: 'MyFont';
      src: url('fonts/a.ttf') format('truetype');
      font-weight: normal;
      font-style: normal;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'MyFont', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    }

    html {
      font-size: 16px;
      scroll-behavior: smooth;
    }

    body {
      background-color: #f5f5f5;
      color: #333;
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* 容器优化 - 响应式 */
    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.25rem;
    }

    /* 顶部标题栏 - 与主页保持一致 */
    .header-top {
      background-color: #165DFF;
      color: white;
      padding: 0.75rem 1rem;
      display: flex;
      align-items: center;
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .hamburger {
      background: none;
      border: none;
      color: white;
      font-size: 1.5rem;
      cursor: pointer;
      padding: 0.5rem;
      margin-right: 1rem;
      display: flex;
      align-items: center;
      justify-content: center;
      width: 2.5rem;
      height: 2.5rem;
      border-radius: 4px;
      transition: background-color 0.3s;
    }

    .hamburger:hover {
      background-color: rgba(255,255,255,0.2);
    }

    .site-title {
      font-size: 1.125rem;
      font-weight: 600;
      flex-grow: 1;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      max-width: calc(100% - 4rem);
    }

    /* 抽屉遮罩层 */
    .drawer-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-color: rgba(0,0,0,0.5);
      z-index: 999;
    }

    /* 左侧抽屉 - 与主页保持一致 */
    .drawer {
      position: fixed;
      top: 0;
      left: -320px;
      width: 300px;
      height: 100vh;
      background-color: white;
      box-shadow: 2px 0 10px rgba(0,0,0,0.1);
      transition: left 0.3s ease;
      z-index: 1000;
      display: flex;
      flex-direction: column;
    }

    .drawer.open {
      left: 0;
    }

    .drawer-header {
      padding: 1.5rem;
      border-bottom: 1px solid #eee;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .drawer-logo {
      width: 100px;
      height: auto;
    }

    .close-drawer {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: #999;
      width: 2.5rem;
      height: 2.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 4px;
      transition: background-color 0.3s;
    }

    .close-drawer:hover {
      background-color: #f0f0f0;
    }

    .drawer-nav {
      list-style: none;
      flex: 1;
      overflow-y: auto;
      padding: 1rem 0;
    }

    .drawer-nav li {
      margin: 0;
    }

    .drawer-nav a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.875rem 1.5rem;
      color: #333;
      text-decoration: none;
      transition: background-color 0.3s;
      font-size: 1rem;
    }

    .drawer-nav a:hover,
    .drawer-nav a.active {
      background-color: rgba(22, 93, 255, 0.1);
      color: #165DFF;
    }

    .unread-badge {
      background-color: #ff4d4f;
      color: white;
      font-size: 0.75rem;
      padding: 0.125rem 0.375rem;
      border-radius: 10px;
      min-width: 1.25rem;
      text-align: center;
    }

    .drawer-user {
      padding: 1.5rem;
      border-top: 1px solid #eee;
    }

    .user-info {
      font-size: 0.875rem;
      color: #666;
      margin-bottom: 1rem;
    }

    .drawer-btn-group {
      display: flex;
      gap: 0.75rem;
    }

    /* 按钮样式 - 与主页保持一致 */
    .btn {
      padding: 0.5rem 1rem;
      border-radius: 4px;
      border: none;
      cursor: pointer;
      font-size: 0.875rem;
      transition: all 0.3s;
      text-decoration: none;
      display: inline-block;
      text-align: center;
      font-weight: 500;
    }

    .btn-primary {
      background-color: #165DFF;
      color: #fff;
    }

    .btn-primary:hover {
      background-color: #0E42D2;
      transform: translateY(-1px);
      box-shadow: 0 4px 12px rgba(22, 93, 255, 0.2);
    }

    .btn-default {
      background-color: #eee;
      color: #333;
    }

    .btn-default:hover {
      background-color: #ddd;
      transform: translateY(-1px);
    }

    /* 主内容区域 */
    .main-content {
      flex: 1;
      padding: 1.5rem 0;
    }

    /* 详情页面样式 */
    .circle-detail {
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      padding: 1.5rem;
      margin-bottom: 1.5rem;
    }

    .detail-title {
      font-size: 1.5rem;
      margin-bottom: 1rem;
      color: #333;
      font-weight: 600;
      line-height: 1.3;
    }

    .detail-meta {
      display: flex;
      justify-content: space-between;
      color: #999;
      margin-bottom: 1.5rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid #eee;
      font-size: 0.875rem;
      flex-wrap: wrap;
      gap: 0.75rem;
    }

    .detail-content {
      color: #333;
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 1.5rem;
      white-space: pre-wrap;
      word-break: break-word;
    }

    /* 媒体内容 */
    .detail-media {
      display: flex;
      flex-wrap: wrap;
      gap: 0.75rem;
      margin-bottom: 1.5rem;
    }

    .detail-media img {
      max-width: 100%;
      height: auto;
      border-radius: 8px;
      cursor: pointer;
      transition: transform 0.3s;
    }

    .detail-media img:hover {
      transform: scale(1.02);
    }

    .detail-media video {
      max-width: 100%;
      border-radius: 8px;
      height: auto;
    }

    /* 点赞按钮 */
    .like-btn-wrap {
      margin: 1.5rem 0;
      text-align: center;
    }

    .btn-large {
      padding: 0.75rem 1.5rem;
      font-size: 1rem;
      min-width: 8rem;
    }

    /* 评论区样式 */
    .comment-section {
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0,0,0,0.05);
      padding: 1.5rem;
    }

    .comment-title {
      font-size: 1.25rem;
      margin-bottom: 1rem;
      color: #333;
      font-weight: 600;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid #eee;
    }

    .comment-form {
      margin-bottom: 1.5rem;
    }

    .form-group {
      margin-bottom: 1rem;
    }

    .form-textarea {
      width: 100%;
      padding: 0.75rem;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-size: 1rem;
      min-height: 6rem;
      resize: vertical;
      transition: border-color 0.3s, box-shadow 0.3s;
    }

    .form-textarea:focus {
      outline: none;
      border-color: #165DFF;
      box-shadow: 0 0 0 3px rgba(22, 93, 255, 0.1);
    }

    /* 登录提示 */
    .login-tip {
      background-color: #f8f9fa;
      padding: 1rem;
      border-radius: 4px;
      text-align: center;
      margin-bottom: 1.5rem;
      font-size: 0.875rem;
      color: #666;
    }

    .login-tip a {
      color: #165DFF;
      text-decoration: none;
      font-weight: 500;
    }

    .login-tip a:hover {
      text-decoration: underline;
    }

    /* 评论列表 */
    .comment-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .no-comment {
      text-align: center;
      padding: 2rem 1rem;
      color: #999;
      font-size: 0.875rem;
      background-color: #f8f9fa;
      border-radius: 8px;
    }

    .comment-item {
      background-color: #f8f9fa;
      border-radius: 8px;
      padding: 1rem;
      transition: transform 0.3s, box-shadow 0.3s;
    }

    .comment-item:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    }

    .comment-user {
      font-weight: 600;
      color: #333;
      margin-bottom: 0.25rem;
      font-size: 0.875rem;
    }

    .comment-time {
      color: #999;
      font-size: 0.75rem;
      margin-bottom: 0.5rem;
    }

    .comment-content {
      color: #333;
      line-height: 1.6;
      margin-bottom: 0.75rem;
      font-size: 0.875rem;
      white-space: pre-wrap;
      word-break: break-word;
    }

    /* 操作按钮 */
    .comment-actions {
      display: flex;
      gap: 0.5rem;
      align-items: center;
      flex-wrap: wrap;
    }

    .btn-danger {
      background-color: #ff4d4f;
      color: #fff;
    }

    .btn-danger:hover {
      background-color: #ff7875;
      transform: translateY(-1px);
    }

    .reply-btn {
      background-color: #f0f7ff;
      color: #165DFF;
      border: 1px solid #165DFF;
      padding: 0.25rem 0.75rem;
      border-radius: 4px;
      cursor: pointer;
      font-size: 0.75rem;
      transition: background-color 0.3s;
    }

    .reply-btn:hover {
      background-color: #e1edff;
    }

    .reply-count {
      color: #165DFF;
      font-size: 0.75rem;
      margin-left: 0.5rem;
      cursor: pointer;
      font-weight: 500;
    }

    .reply-count:hover {
      text-decoration: underline;
    }

    /* 回复表单 */
    .reply-form {
      margin-top: 0.75rem;
      padding: 0.75rem;
      background-color: #fff;
      border-radius: 4px;
      border: 1px solid #eee;
      display: none;
    }

    .reply-form.active {
      display: block;
    }

    .reply-textarea {
      width: 100%;
      padding: 0.5rem;
      border: 1px solid #ddd;
      border-radius: 4px;
      font-size: 0.875rem;
      min-height: 4rem;
      resize: vertical;
      margin-bottom: 0.5rem;
    }

    .reply-btn-group {
      display: flex;
      justify-content: flex-end;
      gap: 0.5rem;
    }

    .reply-cancel {
      background-color: #f5f5f5;
      color: #333;
      border: none;
      padding: 0.25rem 0.75rem;
      border-radius: 4px;
      cursor: pointer;
      font-size: 0.75rem;
    }

    /* 子回复列表 */
    .reply-list {
      margin-top: 0.75rem;
      margin-left: 1rem;
      border-left: 2px solid #eee;
      padding-left: 1rem;
      display: none;
    }

    .reply-list.active {
      display: block;
    }

    .reply-item {
      background-color: #fff;
      border-radius: 4px;
      padding: 0.75rem;
      margin-bottom: 0.5rem;
      border: 1px solid #f0f0f0;
    }

    .reply-user {
      font-weight: 600;
      color: #333;
      font-size: 0.75rem;
      margin-bottom: 0.125rem;
    }

    .reply-content {
      color: #333;
      line-height: 1.5;
      font-size: 0.75rem;
      margin-bottom: 0.25rem;
      white-space: pre-wrap;
      word-break: break-word;
    }

    /* 底部样式 - 与主页保持一致 */
    footer {
      background-color: #333;
      color: #fff;
      padding: 2rem 0;
      margin-top: auto;
      width: 100%;
    }

    footer .container {
      text-align: center;
    }

    footer p {
      font-size: 0.875rem;
      opacity: 0.8;
      line-height: 1.6;
    }

    /* 图片预览模态框 */
    .image-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.9);
      z-index: 1001;
      align-items: center;
      justify-content: center;
    }

    .image-modal img {
      max-width: 90%;
      max-height: 90%;
      border-radius: 4px;
    }

    .close-modal {
      position: absolute;
      top: 1rem;
      right: 1.5rem;
      color: white;
      font-size: 2rem;
      cursor: pointer;
      background: none;
      border: none;
    }

    /* 响应式断点 - 平板设备 */
    @media (max-width: 992px) {
      html {
        font-size: 15px;
      }
      
      .container {
        padding: 0 1rem;
      }
      
      .circle-detail {
        padding: 1.25rem;
      }
      
      .detail-title {
        font-size: 1.375rem;
      }
      
      .comment-section {
        padding: 1.25rem;
      }
      
      .site-title {
        max-width: calc(100% - 3.5rem);
      }
    }

    /* 响应式断点 - 移动设备 */
    @media (max-width: 768px) {
      html {
        font-size: 14px;
      }
      
      .container {
        padding: 0 0.75rem;
      }
      
      .drawer {
        width: 280px;
        left: -280px;
      }
      
      .drawer-header {
        padding: 1.25rem;
      }
      
      .drawer-nav a {
        padding: 0.75rem 1.25rem;
      }
      
      .header-top {
        padding: 0.625rem 0.875rem;
      }
      
      .hamburger {
        width: 2.25rem;
        height: 2.25rem;
        font-size: 1.25rem;
      }
      
      .site-title {
        font-size: 1rem;
        max-width: calc(100% - 3rem);
      }
      
      .main-content {
        padding: 1rem 0;
      }
      
      .circle-detail {
        padding: 1rem;
        border-radius: 6px;
      }
      
      .detail-title {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
      }
      
      .detail-meta {
        flex-direction: column;
        gap: 0.5rem;
        font-size: 0.8125rem;
      }
      
      .detail-content {
        font-size: 0.9375rem;
        line-height: 1.6;
      }
      
      .detail-media {
        gap: 0.5rem;
      }
      
      .btn-large {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
        min-width: 6rem;
      }
      
      .comment-section {
        padding: 1rem;
        border-radius: 6px;
      }
      
      .comment-title {
        font-size: 1.125rem;
      }
      
      .form-textarea {
        min-height: 5rem;
        font-size: 0.875rem;
      }
      
      .reply-list {
        margin-left: 0.75rem;
        padding-left: 0.75rem;
      }
      
      footer {
        padding: 1.5rem 0;
      }
    }

    /* 响应式断点 - 小屏移动设备 */
    @media (max-width: 480px) {
      html {
        font-size: 13px;
      }
      
      .container {
        padding: 0 0.5rem;
      }
      
      .drawer {
        width: 85%;
        left: -100%;
      }
      
      .header-top {
        padding: 0.5rem 0.75rem;
      }
      
      .hamburger {
        width: 2rem;
        height: 2rem;
        font-size: 1.125rem;
      }
      
      .site-title {
        font-size: 0.875rem;
        max-width: calc(100% - 2.5rem);
      }
      
      .detail-title {
        font-size: 1.125rem;
      }
      
      .detail-content {
        font-size: 0.875rem;
        line-height: 1.5;
      }
      
      .comment-actions {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.375rem;
      }
      
      .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
      }
      
      .reply-btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.6875rem;
      }
      
      .reply-count {
        font-size: 0.6875rem;
      }
      
      footer p {
        font-size: 0.75rem;
      }
    }

    /* 防止滚动穿透 */
    body.no-scroll {
      overflow: hidden;
    }
  </style>