/* 基础样式 */
body {
    font-family: "Segoe UI", sans-serif;
    background: linear-gradient(to bottom right, #e6f0ff, #ffffff);
    margin: 0;
    padding: 0;
  }
  
  .container {
    max-width: 600px;
    margin: 50px auto;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
  }
  
  h1 {
    text-align: center;
    color: #007BFF;
    margin-bottom: 30px;
  }
  
  .file-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
  }
  
  .file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
  }
  
  button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
  }
  
  button:hover {
    background-color: #0056b3;
  }
  
  #progress-bar-container {
    margin-top: 30px;
    width: 100%;
    height: 10px;
    background: #eee;
    border-radius: 5px;
    overflow: hidden;
  }
  
  #progress-bar {
    width: 0%;
    height: 100%;
    background: #007BFF;
    transition: width 0.3s ease;
  }