/**
  Created with IntelliJ IDEA 2017.2.3.
  author: YangQiang
  DateTime: 2021/6/1 9:43
  updateTime: 2021/6/1 9:43
  Description: 
 */
@charset "utf-8";
.stream {
    position: relative;
    text-decoration: none;
    text-transform: uppercase;
    overflow: hidden;
    filter: hue-rotate(0deg);
    transition: all 0.1s linear;
}
.stream:hover span {
    position: absolute;
    display: block;
}
.stream:hover span:nth-child(1) {
    filter: hue-rotate(0deg);
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, #3a86ff);
    animation: animate1 1s linear infinite;
}
@keyframes animate1 {
    0% {
        left: -100%;
    }
    50%,
    100% {
        left: 100%;
    }
}
.stream:hover span:nth-child(2) {
    filter: hue-rotate(60deg);
    top: -100%;
    right: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, transparent, #3a86ff);
    animation: animate2 1s linear infinite;
    animation-delay: 0.25s;
}
@keyframes animate2 {
    0% {
        top: -100%;
    }
    50%,
    100% {
        top: 100%;
    }
}
.stream:hover span:nth-child(3) {
    filter: hue-rotate(120deg);
    bottom: 0;
    right: 0;
    width: 100%;
    background: linear-gradient(270deg, transparent, #3a86ff);
    animation: animate3 1s linear infinite;
    animation-delay: 0.5s;
}
@keyframes animate3 {
    0% {
        right: -100%;
        height: 3px;
    }
    50%,
    100% {
        height: 2px;
        right: 100%;
    }
}
.stream:hover span:nth-child(4) {
    filter: hue-rotate(300deg);
    bottom: -100%;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(360deg, transparent, #3a86ff);
    animation: animate4 1s linear infinite;
    animation-delay: 0.75s;
}
@keyframes animate4 {
    0% {
        bottom: -100%;
    }
    50%,
    100% {
        bottom: 100%;
    }
}