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.index-banner .swiper-container .banner-text .down-link:hover{opacity:.8}
.index-banner .swiper-container .bottom-nav{position:relative;z-index:99;width:100%;background-color:#f2f8ff;margin-bottom:40px}
.index-banner .swiper-container .bottom-nav .item-box .item{float:left;width:20%;padding:30px 14px;cursor:pointer}
.index-banner .swiper-container .bottom-nav .item-box .item:hover{background-color:#fff}
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.class-wappaer{width:1200px;margin:0 auto;position:relative}
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