参考：

Clip-path实现按钮流动边框动画_在线clip-path-CSDN博客

https://www.5axxw.com/questions/simple/9ju5yt#google_vignette

              <div class="bottom-top-item-centent bottom-top-item-left"><vue-seamless-scroll :data="listLeftData" :class-option="defaultLeftOption"><ul class="ul-scoll"><li v-for="(item, index) in listLeftData" :key='index'><span class="title">{{ item.title }}</span><span class="date">{{ item.time }}</span></li></ul></vue-seamless-scroll></div>

            .bottom-top-item-left {width: 94%;height: 130px;overflow: hidden;border: 1px solid #283dff;// animation: border-flow 2s linear infinite;position: relative;transition: all .5s;.ul-scoll {padding: 10px;margin: 0 auto;border: 2px solid transparent;/* 背景不重复 */li {list-style: none;display: flex;justify-content: space-between;align-items: center;margin: 4px;padding: 2px;color: #fff;font-size: 14px;// background: rgba(198, 142, 226, 0.2);}&:last-child {padding: 0;li {&:last-child {// padding: 0 2px;padding-bottom: 0;margin: 0 4px;}&:first-child {margin-top: 0;}}}}&::after,&::before {content: "";position: absolute;border: 2px solid rgb(216, 125, 13);width: 99%;height: 126px;// border-radius: 10px;/* 简写为 */inset: 0px;/* 添加动画 */animation: pathRotate 3s infinite linear;}&::before {// border-color: rgb(250, 255, 192);border-color: #0efcff;}@keyframes pathRotate {0%,100% {clip-path: inset(0 0 98% 0);// border-image: linear-gradient(to right, #f0c3e3 0%, #8ec5fc 100%);// border-image-slice: 1;}25% {clip-path: inset(0 98% 0 0);// border-image: linear-gradient(to right, #8ec5fc 0%, #f0c3e3 100%);// border-image-slice: 1;}50% {clip-path: inset(98% 0 0 0);}75% {clip-path: inset(0 0 0 98%);}}&::after {animation-delay: -1.5s;}&:hover {filter: brightness(1.5);}}// @keyframes border-flow {//   0% {//     border-left-color: #000;//     border-top-color: #afc;//   }//   25% {//     border-top-color: transparent;//     border-right-color: #afc; //#bcf;//   }//   50% {//     border-right-color: transparent;//     border-bottom-color: #afc; // pink;//   }//   75% {//     border-bottom-color: transparent;//     border-left-color: #afc; // #dcf;//   }//   100% {//     border-left-color: transparent;//     border-top-color: #afc; // hotpink;//   }// }