* {
    padding: 0;
    margin: 0;
  }
  body {
    height: 100vh;
  }
  #loader-box {
    opacity: 1;
    transition: opacity 0.9s ease-out;
  }
  #loader-box.hide {
      opacity: 0;
  }
  .loader-wrapper {
    position: fixed;
    left: 0;
    top: 0;
    z-index: 99;
    width: 100%;
    height: 100%;
    /* 溢出隐藏 */
    overflow: hidden;
    /* 渐变背景 */
    background: linear-gradient(45deg, #5a3694 0%, #13bdce 33%, #0094d9 66%, #6fc7b5 100%);
    background-size: 400%;
    background-position: 0% 100%;
    /* 执行背景渐变动画：动画名 时长 加速后减速 无限次播放 */
    animation: gradient 7.5s ease-in-out infinite;
  }
  .loader-wrapper .loader {
    position: relative;
    width: 180px;
    height: 180px;
    border: 3px solid transparent;
    border-radius: 50%;
    left: 50%;
    top: 50%;
    margin-left: -75px;
    margin-top: -150px;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  .loader-wrapper .loader img {
    position: absolute;
    width: 126px;
    height: 126px;
    border-radius: 50%;
  }
  .loader-wrapper .loader .dot {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    margin-left: calc(-10px / 2);
    margin-top: calc(-10px / 2);
    perspective: 70px;
    transform-style: preserve-3d;
  }
  .loader-wrapper .loader .dot::before,
  .loader-wrapper .loader .dot::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
  }
  .loader-wrapper .loader .dot::before {
    background: #000;
    top: -100%;
    animation: moveBlack 2000ms infinite;
  }
  .loader-wrapper .loader .dot::after {
    background: #FFF;
    top: 100%;
    animation: moveWhite 2000ms infinite;
  }
  .loader-wrapper .loader-text {
    width: 50%;
    height: 36px;
    /* 绝对定位 水平居中 */
    position: absolute;
    top: 72%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    /* 防止选取 */
    user-select: none;
  }
  .loader-wrapper .loader-text div {
    width: 30px;
    height: 36px;
    color: #fff;
    font-size: 32px;
    margin: 0 20px;
    /* 绝对定位 */
    position: absolute;
    /* 默认隐藏+旋转180度 */
    opacity: 0;
    transform: rotate(180deg);
    /* 执行文字移动动画 */
    animation: move 2s linear infinite;
  }
  .loader-wrapper .loader-text div:nth-child(8)::before,
  .loader-wrapper .loader-text div:nth-child(9)::before,
  .loader-wrapper .loader-text div:nth-child(10)::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #fff;
    position: absolute;
    left: 0;
    bottom: 0;
  }
  .loader-wrapper .loader-text div::after {
    content: "";
    width: 10px;
    height: 5px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.15);
    position: absolute;
    bottom: -40px;
    left: 50%;
    margin-left: -5px;
  }
  .loader-wrapper .loader-text div:nth-child(8)::after,
  .loader-wrapper .loader-text div:nth-child(9)::after,
  .loader-wrapper .loader-text div:nth-child(10)::after {
    left: 0;
    margin-left: 0;
  }
  .loader-wrapper .loader-text div:nth-child(2) {
    animation-delay: 0.2s;
  }
  .loader-wrapper .loader-text div:nth-child(3) {
    animation-delay: 0.4s;
  }
  .loader-wrapper .loader-text div:nth-child(4) {
    animation-delay: 0.6s;
  }
  .loader-wrapper .loader-text div:nth-child(5) {
    animation-delay: 0.8s;
  }
  .loader-wrapper .loader-text div:nth-child(6) {
    animation-delay: 1s;
  }
  .loader-wrapper .loader-text div:nth-child(7) {
    animation-delay: 1.2s;
  }
  .loader-wrapper .loader-text div:nth-child(8) {
    animation-delay: 1.4s;
  }
  .loader-wrapper .loader-text div:nth-child(9) {
    animation-delay: 1.6s;
  }
  .loader-wrapper .loader-text div:nth-child(10) {
    animation-delay: 1.8s;
  }
  .loader .dot:nth-child(1) {
    transform: rotate(calc(calc(360deg / 36)*1)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(1)::before,
  .loader .dot:nth-child(1)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 1);
  }
  .loader .dot:nth-child(2) {
    transform: rotate(calc(calc(360deg / 36)*2)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(2)::before,
  .loader .dot:nth-child(2)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 2);
  }
  .loader .dot:nth-child(3) {
    transform: rotate(calc(calc(360deg / 36)*3)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(3)::before,
  .loader .dot:nth-child(3)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 3);
  }
  .loader .dot:nth-child(4) {
    transform: rotate(calc(calc(360deg / 36)*4)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(4)::before,
  .loader .dot:nth-child(4)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 4);
  }
  .loader .dot:nth-child(5) {
    transform: rotate(calc(calc(360deg / 36)*5)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(5)::before,
  .loader .dot:nth-child(5)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 5);
  }
  .loader .dot:nth-child(6) {
    transform: rotate(calc(calc(360deg / 36)*6)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(6)::before,
  .loader .dot:nth-child(6)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 6);
  }
  .loader .dot:nth-child(7) {
    transform: rotate(calc(calc(360deg / 36)*7)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(7)::before,
  .loader .dot:nth-child(7)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 7);
  }
  .loader .dot:nth-child(8) {
    transform: rotate(calc(calc(360deg / 36)*8)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(8)::before,
  .loader .dot:nth-child(8)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 8);
  }
  .loader .dot:nth-child(9) {
    transform: rotate(calc(calc(360deg / 36)*9)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(9)::before,
  .loader .dot:nth-child(9)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 9);
  }
  .loader .dot:nth-child(10) {
    transform: rotate(calc(calc(360deg / 36)*10)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(10)::before,
  .loader .dot:nth-child(10)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 10);
  }
  .loader .dot:nth-child(11) {
    transform: rotate(calc(calc(360deg / 36)*11)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(11)::before,
  .loader .dot:nth-child(11)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 11);
  }
  .loader .dot:nth-child(12) {
    transform: rotate(calc(calc(360deg / 36)*12)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(12)::before,
  .loader .dot:nth-child(12)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 12);
  }
  .loader .dot:nth-child(13) {
    transform: rotate(calc(calc(360deg / 36)*13)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(13)::before,
  .loader .dot:nth-child(13)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 13);
  }
  .loader .dot:nth-child(14) {
    transform: rotate(calc(calc(360deg / 36)*14)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(14)::before,
  .loader .dot:nth-child(14)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 14);
  }
  .loader .dot:nth-child(15) {
    transform: rotate(calc(calc(360deg / 36)*15)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(15)::before,
  .loader .dot:nth-child(15)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 15);
  }
  .loader .dot:nth-child(16) {
    transform: rotate(calc(calc(360deg / 36)*16)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(16)::before,
  .loader .dot:nth-child(16)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 16);
  }
  .loader .dot:nth-child(17) {
    transform: rotate(calc(calc(360deg / 36)*17)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(17)::before,
  .loader .dot:nth-child(17)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 17);
  }
  .loader .dot:nth-child(18) {
    transform: rotate(calc(calc(360deg / 36)*18)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(18)::before,
  .loader .dot:nth-child(18)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 18);
  }
  .loader .dot:nth-child(19) {
    transform: rotate(calc(calc(360deg / 36)*19)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(19)::before,
  .loader .dot:nth-child(19)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 19);
  }
  .loader .dot:nth-child(20) {
    transform: rotate(calc(calc(360deg / 36)*20)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(20)::before,
  .loader .dot:nth-child(20)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 20);
  }
  .loader .dot:nth-child(21) {
    transform: rotate(calc(calc(360deg / 36)*21)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(21)::before,
  .loader .dot:nth-child(21)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 21);
  }
  .loader .dot:nth-child(22) {
    transform: rotate(calc(calc(360deg / 36)*22)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(22)::before,
  .loader .dot:nth-child(22)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 22);
  }
  .loader .dot:nth-child(23) {
    transform: rotate(calc(calc(360deg / 36)*23)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(23)::before,
  .loader .dot:nth-child(23)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 23);
  }
  .loader .dot:nth-child(24) {
    transform: rotate(calc(calc(360deg / 36)*24)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(24)::before,
  .loader .dot:nth-child(24)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 24);
  }
  .loader .dot:nth-child(25) {
    transform: rotate(calc(calc(360deg / 36)*25)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(25)::before,
  .loader .dot:nth-child(25)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 25);
  }
  .loader .dot:nth-child(26) {
    transform: rotate(calc(calc(360deg / 36)*26)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(26)::before,
  .loader .dot:nth-child(26)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 26);
  }
  .loader .dot:nth-child(27) {
    transform: rotate(calc(calc(360deg / 36)*27)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(27)::before,
  .loader .dot:nth-child(27)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 27);
  }
  .loader .dot:nth-child(28) {
    transform: rotate(calc(calc(360deg / 36)*28)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(28)::before,
  .loader .dot:nth-child(28)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 28);
  }
  .loader .dot:nth-child(29) {
    transform: rotate(calc(calc(360deg / 36)*29)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(29)::before,
  .loader .dot:nth-child(29)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 29);
  }
  .loader .dot:nth-child(30) {
    transform: rotate(calc(calc(360deg / 36)*30)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(30)::before,
  .loader .dot:nth-child(30)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 30);
  }
  .loader .dot:nth-child(31) {
    transform: rotate(calc(calc(360deg / 36)*31)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(31)::before,
  .loader .dot:nth-child(31)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 31);
  }
  .loader .dot:nth-child(32) {
    transform: rotate(calc(calc(360deg / 36)*32)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(32)::before,
  .loader .dot:nth-child(32)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 32);
  }
  .loader .dot:nth-child(33) {
    transform: rotate(calc(calc(360deg / 36)*33)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(33)::before,
  .loader .dot:nth-child(33)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 33);
  }
  .loader .dot:nth-child(34) {
    transform: rotate(calc(calc(360deg / 36)*34)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(34)::before,
  .loader .dot:nth-child(34)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 34);
  }
  .loader .dot:nth-child(35) {
    transform: rotate(calc(calc(360deg / 36)*35)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(35)::before,
  .loader .dot:nth-child(35)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 35);
  }
  .loader .dot:nth-child(36) {
    transform: rotate(calc(calc(360deg / 36)*36)) translateY(calc(-180px / 2));
  }
  .loader .dot:nth-child(36)::before,
  .loader .dot:nth-child(36)::after {
    animation-delay: calc(-2000ms / 36 * 6 * 36);
  }
  /* 定义动画 */
  /* 背景渐变动画 */
  @keyframes gradient {
    50% {
      background-position: 100% 0%;
    }
  }
  /* 文字移动动画 */
  @keyframes move {
    0% {
      right: 0;
      opacity: 0;
    }
    35% {
      right: 41%;
      opacity: 1;
      transform: rotate(0);
    }
    65% {
      right: 59%;
      opacity: 1;
      transform: rotate(0);
    }
    100% {
      right: 100%;
      transform: rotate(-180deg);
    }
  }
  /* 黑色小球移动动画 */
  @keyframes moveBlack {
    0% {
      animation-timing-function: ease-in;
    }
    25% {
      transform: translate3d(0, 100%, 10px);
      animation-timing-function: ease-out;
    }
    50% {
      transform: translate3d(0, 200%, 0);
      animation-timing-function: ease-in;
    }
    75% {
      transform: translate3d(0, 100%, -10px);
      animation-timing-function: ease-out;
    }
  }
  /* 白色小球移动动画 */
  @keyframes moveWhite {
    0% {
      animation-timing-function: ease-in;
    }
    25% {
      transform: translate3d(0, -100%, -10px);
      animation-timing-function: ease-out;
    }
    50% {
      transform: translate3d(0, -200%, 0);
      animation-timing-function: ease-in;
    }
    75% {
      transform: translate3d(0, -100%, 10px);
      animation-timing-function: ease-out;
    }
  }