.index_four{padding-top:6.25vw;padding-bottom:7.55vw;background-size:cover;background-repeat:no-repeat;background-position:center center;background-attachment:fixed}.index_four_list{display:flex;display:-ms-flexbox;display:-webkit-flex;justify-content:center;-ms-justify-content:center;-webkit-justify-content:center}.index_four_item{padding:0 2.6vw}.index_four_item .number{text-align:center;font-size:3.75vw}.index_four_video{width:90px;margin-top:3.65vw;margin-left:auto;margin-right:auto;display:flex;display:-ms-flexbox;display:-webkit-flex;justify-content:center;-ms-justify-content:center;-webkit-justify-content:center}@media screen and (min-width:768px) and (max-width:1024px){.index_four_item .number{font-size:36px}.index_four_video{width:60px}}@media screen and (min-width:1px) and (max-width:767px){.index_four_list{justify-content:space-between;-ms-justify-content:space-between;-webkit-justify-content:space-between;flex-wrap:wrap;-ms-flex-wrap:wrap;-webkit-flex-wrap:wrap}.index_four_item{width:50%;margin-bottom:15px}.index_four_item .number{font-size:42px}.index_four_video{width:60px}}