operation-Backend/loading.html

<style>
@keyframes rainbow {
  0% { --rainbow-color: #00a98e; }
  1.25% { --rainbow-color: #00a996; }
  2.5% { --rainbow-color: #00a99f; }
  3.75% { --rainbow-color: #00a9a7; }
  5% { --rainbow-color: #00a9b0; }
  6.25% { --rainbow-color: #00a9b8; }
  7.5% { --rainbow-color: #00a9c0; }
  8.75% { --rainbow-color: #00a8c7; }
  10% { --rainbow-color: #00a8cf; }
  11.25% { --rainbow-color: #00a7d5; }
  12.5% { --rainbow-color: #00a6dc; }
  13.75% { --rainbow-color: #00a6e2; }
  15% { --rainbow-color: #00a4e7; }
  16.25% { --rainbow-color: #00a3ec; }
  17.5% { --rainbow-color: #00a2f1; }
  18.75% { --rainbow-color: #00a0f4; }
  20% { --rainbow-color: #009ff7; }
  21.25% { --rainbow-color: #009dfa; }
  22.5% { --rainbow-color: #009bfc; }
  23.75% { --rainbow-color: #0098fd; }
  25% { --rainbow-color: #0096fd; }
  26.25% { --rainbow-color: #0093fd; }
  27.5% { --rainbow-color: #2e90fc; }
  28.75% { --rainbow-color: #4d8dfa; }
  30% { --rainbow-color: #638af8; }
  31.25% { --rainbow-color: #7587f5; }
  32.5% { --rainbow-color: #8583f1; }
  33.75% { --rainbow-color: #9280ed; }
  35% { --rainbow-color: #9f7ce9; }
  36.25% { --rainbow-color: #aa78e3; }
  37.5% { --rainbow-color: #b574dd; }
  38.75% { --rainbow-color: #be71d7; }
  40% { --rainbow-color: #c76dd1; }
  41.25% { --rainbow-color: #cf69c9; }
  42.5% { --rainbow-color: #d566c2; }
  43.75% { --rainbow-color: #dc63ba; }
  45% { --rainbow-color: #e160b3; }
  46.25% { --rainbow-color: #e65eab; }
  47.5% { --rainbow-color: #e95ca2; }
  48.75% { --rainbow-color: #ed5a9a; }
  50% { --rainbow-color: #ef5992; }
  51.25% { --rainbow-color: #f15989; }
  52.5% { --rainbow-color: #f25981; }
  53.75% { --rainbow-color: #f25a79; }
  55% { --rainbow-color: #f25c71; }
  56.25% { --rainbow-color: #f15e69; }
  57.5% { --rainbow-color: #ef6061; }
  58.75% { --rainbow-color: #ed635a; }
  60% { --rainbow-color: #eb6552; }
  61.25% { --rainbow-color: #e8694b; }
  62.5% { --rainbow-color: #e46c44; }
  63.75% { --rainbow-color: #e06f3d; }
  65% { --rainbow-color: #db7336; }
  66.25% { --rainbow-color: #d77630; }
  67.5% { --rainbow-color: #d17a2a; }
  68.75% { --rainbow-color: #cc7d24; }
  70% { --rainbow-color: #c6811e; }
  71.25% { --rainbow-color: #bf8418; }
  72.5% { --rainbow-color: #b98713; }
  73.75% { --rainbow-color: #b28a0f; }
  75% { --rainbow-color: #ab8d0c; }
  76.25% { --rainbow-color: #a3900b; }
  77.5% { --rainbow-color: #9c920d; }
  78.75% { --rainbow-color: #949510; }
  80% { --rainbow-color: #8b9715; }
  81.25% { --rainbow-color: #83991b; }
  82.5% { --rainbow-color: #7a9b21; }
  83.75% { --rainbow-color: #719d27; }
  85% { --rainbow-color: #679e2e; }
  86.25% { --rainbow-color: #5da035; }
  87.5% { --rainbow-color: #51a13c; }
  88.75% { --rainbow-color: #44a244; }
  90% { --rainbow-color: #34a44b; }
  91.25% { --rainbow-color: #1ba553; }
  92.5% { --rainbow-color: #00a65b; }
  93.75% { --rainbow-color: #00a663; }
  95% { --rainbow-color: #00a76c; }
  96.25% { --rainbow-color: #00a874; }
  97.5% { --rainbow-color: #00a87d; }
  98.75% { --rainbow-color: #00a985; }
  100% { --rainbow-color: #00a98e; }
}

:root {
  --rainbow-color: #00a98e;
  animation: rainbow 20s linear infinite;
}

.loading-container {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--rainbow-color);
  user-select: none;
  background-color: snow;
}

.loading-container .loading {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.loading-container .loading .square {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
}

.loading-container .loading .square::before {
  width: 10px;
  height: 10px;
  content: "";
  border: 3px solid var(--rainbow-color);
  border-radius: 15%;
  animation: square-to-dot-animation 2s linear infinite;
}

.loading-container .loading .square:nth-child(1)::before {
  animation-delay: calc(150ms * 1);
}

.loading-container .loading .square:nth-child(2)::before {
  animation-delay: calc(150ms * 2);
}

.loading-container .loading .square:nth-child(3)::before {
  animation-delay: calc(150ms * 3);
}

.loading-container .loading .square:nth-child(4)::before {
  animation-delay: calc(150ms * 4);
}

@keyframes square-to-dot-animation {
  15%,
  25% {
    width: 0;
    height: 0;
    margin: 5px;
    border-width: 5px;
    border-radius: 100%;
  }

  40% {
    width: 10px;
    height: 10px;
    margin: initial;
    border-width: 3px;
    border-radius: 15%;
  }
}

.loading-container .name {
  position: relative;
  margin-top: 20px;
  font-size: 24px;
}

.loading-container .tips {
  position: relative;
  margin-top: 10px;
  font-size: 16px;
  opacity: 0.5;
}

.loading-container .tips::after {
  position: absolute;
  padding-left: 5px;
  content: "…";
}
</style>

<div class="loading-container">
  <div class="loading">
    <div class="square"></div>
    <div class="square"></div>
    <div class="square"></div>
    <div class="square"></div>
  </div>
  <div class="name">%VITE_APP_TITLE%</div>
  <div class="tips">载入中</div>
</div>