// 自定义四点旋转SVG
export const fourDotsSpinnerSvg = `
  <svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40">
    <style>
      .spinner {
        transform-origin: center;
        animation: rotate 1.6s linear infinite;
      }
      .dot {
        fill: var(--main-color);
        animation: fade 1.6s infinite;
      }
      .dot:nth-child(1) { animation-delay: 0s; }
      .dot:nth-child(2) { animation-delay: 0.5s; }
      .dot:nth-child(3) { animation-delay: 1s; }
      .dot:nth-child(4) { animation-delay: 1.5s; }
      @keyframes rotate {
        100% { transform: rotate(360deg); }
      }
      @keyframes fade {
        0%, 100% { opacity: 1; }
        50% { opacity: 0.5; }
      }
    </style>
    <g class="spinner">
      <circle class="dot" cx="20" cy="8" r="4"/>
      <circle class="dot" cx="32" cy="20" r="4"/>
      <circle class="dot" cx="20" cy="32" r="4"/>
      <circle class="dot" cx="8" cy="20" r="4"/>
    </g>
  </svg>
`