* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', Roboto, sans-serif;
            background: linear-gradient(to right, #f8f9fc, #f1f3f8);
            color: #333;
            line-height: 1.8;
            min-height: 100vh;
        }

        .container {
            max-width: 860px;
            margin: 50px auto;
            padding: 50px 55px;
            background: #ffffff;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border-radius: 16px;
            transition: all 0.3s ease;
        }
  #bt { text-align: center;  
      color: rgb(13, 12, 12);
      font-size: 30px;
      font-weight: bold;
      margin: 10px;
    }
        .container:hover {
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
        }

        header {
            border-bottom: 1px solid #f2f2f2;
            padding-bottom: 24px;
            margin-bottom: 40px;
        }

        h1 {
         
         font-weight: 900;
       
           
       
            text-align: center;          /* 标题居中 */
        }

        .meta {
            color: #6b7280;
            font-size: 19px;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: flex-end;   /* 整体靠右 */
        }

        .meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .content {
            font-size: 20px;
            line-height: 2;
            color: #374151;
            word-break: break-all;
        }

        .content p {
            margin-bottom: 24px;
        }

        .content img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 10px 0 24px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }

        .beizhu {
            margin-top: 40px;
            padding: 20px 24px;
            background: #fefce8;
            border-left: 5px solid #f59e0b;
            border-radius: 8px;
            font-size: 15px;
            color: #854d0e;
            line-height: 1.7;
        }

        .beizhu strong {
            color: #d97706;
            margin-right: 6px;
        }

        footer {
            margin-top: 50px;
            padding-top: 25px;
            border-top: 1px solid #f3f4f6;
            text-align: center;
            font-size: 14px;
            color: #9ca3af;
        }

        @media (max-width: 768px) {
            .container {
                margin: 20px;
                padding: 30px 24px;
            }

            h1 {
                font-size: 24px;
            }

            .meta {
                gap: 12px;
                flex-direction: column;
                align-items: flex-end;   /* 移动端竖向排列时仍靠右 */
            }
        }