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.about-us__banner {
    width: 100%;
    height: 300px;
    background: url(../images/69aab62.png) #0c2688 50% no-repeat;
    background-size: cover;
}
.about-us__banner h1 {
    color: #fff;
    font-size: 48px;
    line-height: 65px;
    text-align: center;
    padding-top: 138px;
}
.lake-content{background-color:#fff;padding:25px;}
.mume{font-weight: bold;list-style:none;}
.mume_bg{background-color:#3566ff;}
.mume_small{padding-left:20px;}

.mume_left{background-color: #494b4f;flex-shrink: 0;width: 280px;overflow: auto;}
.mume_left li{height:40px; color:#fff;line-height: 40px;padding-left: 20px;}
.mume_left li:hover{background-color:#1890ff;}
.mume_left li a{ color: hsla(0,0%,100%,.65)}
.mume_left li a:hover{color:#fff;}


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.markdowns p {
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