.sx-m-accordion {
      position: relative;
      border-bottom: 1px solid #e5e7eb;
      margin-bottom: 5px;
    }
    .sx-m-trigger {
      position: absolute;
      top: 0; left: 0; width: 100%; height: 50px;
      opacity: 0; cursor: pointer; z-index: 10;
      margin: 0; padding: 0;
      -webkit-appearance: none; /* 强行抹除移动端默认样式 */
    }
    .sx-m-label {
      display: block;
      padding: 14px 0;
      font-weight: bold;
      font-size: 15px;
      color: #111827;
      position: relative;
      z-index: 5;
    }
    .sx-m-label::after {
      content: '▼';
      position: absolute;
      right: 5px;
      top: 14px;
      font-size: 12px;
      color: #9ca3af;
      transition: transform 0.2s ease;
    }
    .sx-m-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
      font-size: 14px;
      color: #4b5563;
      padding-bottom: 0;
    }
    /* 核心逻辑：利用兄弟选择器控制展开和旋转动画，完美兼容所有移动端浏览器 */
    .sx-m-trigger:checked + .sx-m-label::after {
      transform: rotate(180deg);
    }
    .sx-m-trigger:checked ~ .sx-m-content {
      max-height: 500px;
      padding-bottom: 14px;
      transition: max-height 0.3s ease-in-out;
    }