一、用到的一些CSS技术

渐变 conic-gradient
box-shadow
clip-path
变换、过渡 transform、transition
动画 animation @keyframes
伪类、伪元素 :hover、::before、::after …
绝对布局
。。。

clip-path 生成网站
https://techbrood.com/tool?p=css-clip-path

二、实现效果

请添加图片描述

三、代码

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>卡片测试</title>

  <style>
    body{
      margin: 0;
      padding: 0;
      height: 100vh;
    }
    .wrapper{
      position: relative;
      background: #222222;
      height: 100%;
      color: white;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 100px;
      padding: 10px;
      flex-wrap: wrap;
    }

    .wrapper .card-box{
      position: relative;
      width: 240px;
      height: 360px;
      text-align: center;
      box-shadow: 0 0 0 14px #080808,
      0 24px 56px var(--clr);  
      background-color: var(--clr);

    }
    .wrapper .card-box .title.text{
      line-height: 4em;
    }

    .wrapper .card-box .text{
      line-height: 19em;
      letter-spacing: 8px;
      font-weight: 900;
      transform: scale(0);
      transition: 1.2s;
      filter: blur(4px);
    }
    .wrapper .card-box:hover .text{
      transform: scale(1);
      filter: blur(0);

    }

    .wrapper .card-box .mask{
      position: absolute;
      inset: 20px;
      box-shadow: 0 0 0 18px #080808;
    }


    .wrapper .card-box .icon{
      height: 100px;
      width: 100px;
      border-radius: 50%;
      margin: auto;
      position: absolute;
      inset: 0;
      border: 3px solid white;
      background: conic-gradient(var(--clr), green, var(--clr), yellow, var(--clr));
      transform: translateY(180px) scale(.1);
      opacity: 0;
      transition: all .8s 0s;

    }


    .wrapper .card-box:hover .icon{
      transition-delay: .4s;
      animation: 3s linear 1.05s infinite spin;
      transform: translateY(0) scale(1);

      opacity: 1;

    }

    @keyframes spin {
      0%{
        transform: rotate(0deg);
      }
      100%{
        transform: rotate(360deg);
      }
    }

    .wrapper .card-box .mask span,
    .wrapper .card-box .mask::after,
    .wrapper .card-box .mask::before{
      background: #161616;
      position: absolute;
      inset: 0;
      transition: .25s;
      clip-path: polygon(0 0, 50% 40%, 100% 0);
    }
    .wrapper .card-box:hover .mask span{
      transition-delay: 0;
      clip-path: polygon(0 0, 50% 0%, 100% 0);

    }


    .wrapper .card-box .mask::before{
      transition-delay: .2s;
      clip-path: polygon(0 0, 40% 50%, 50% 100%, 0% 100%);
      content: "";
    }
    .wrapper .card-box:hover .mask::before{
      clip-path: polygon(0 0, 0 100%, 50% 100%, 0% 100%);

    }

    .wrapper .card-box .mask::after{
      transition-delay: .4s;
      clip-path: polygon(100% 0, 60% 50%, 50% 100%, 100% 100%);
      content: "";
    }
    .wrapper .card-box:hover .mask::after{
      clip-path: polygon(100% 0, 100% 100%, 50% 100%, 100% 100%);

    }

  </style>
</head>
<body>

  <div class="wrapper">
    <div class="card-box" style="--clr: red;">
      <h3 class="title text">啥也没有<br><span class="detail text">好耶</span></h3>
      <div class="icon"></div>
      <div class="mask">
        <span></span>
      </div>
    </div>

    <div class="card-box" style="--clr: blue;">
      <h3 class="title text">啥也不是<br><span class="detail text">好耶</span></h3>
      <div class="icon"></div>
      <div class="mask">
        <span></span>
      </div>
    </div>

    <div class="card-box" style="--clr: violet;">
      <h3 class="title text">啥也啥也<br><span class="detail text">好耶</span></h3>
      <div class="icon"></div>
      <div class="mask">
        <span></span>
      </div>
    </div>

  </div>
  
</body>
</html>