.product_main {
    width:100%;
    box-sizing: border-box;
    padding: 80px 0px;
}

.product_nav {
    width: 22%;
    float: left;
    background-color: #ffffff;
	box-shadow: 0px 10px 20px 0px 
		rgba(171, 171, 171, 0.3);
}

.product_nav_tit {
    width: 260px;
	height: 78px;
	line-height: 78px;
    background: #158bff;
    font-size: 22px;
	font-weight: bold;
    color: #fff;
    text-align: center;
}

.product_nav_list {
    padding: 10px 0px;
    width: 100%;
    box-sizing: border-box;
    max-height: 800px;
    overflow: auto;
}

.product_nav_list li {
    width: 100%;
    box-sizing: border-box;
    padding: 24px 50px;
    overflow: hidden;
    font-size: 20px;
	color: #666;
    /* color: #158bff; */
    border-left: 2px solid transparent;
    cursor: pointer;
}

.product_nav_list li i {
    width: 6px;
	height: 6px;
    background: #a2b2c1;
    float: left;
    margin-top: 8px;
    margin-right: 18px;
    border-radius: 50%;
}

.product_nav_list li p {
    max-width: 95%;
    float: left;
}

.product_right {
    width: 74%;
    float: right;
}

.product_list {
    overflow: hidden;
}

.product_list li {
    width: 31%;
    float: left;
    margin-right: 3.5%;
    margin-bottom: 30px;
}

.product_list li a {
    display: block;
    width: 100%;
    height: 100%;
}


.product_list li.margin0 {
    margin-right: 0px;
}

.product_images {
    width: 100%;
    height: 208px;
    border: solid 1px #ebebeb;
    margin-bottom: 20px;
    position: relative;
}

.product_images img {
    max-width: 90%;
    max-height: 80%;
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 0px;
    margin: auto;
}

.product_names {
    font-size: 18px;
	font-weight: bold;
    color: #333;
    white-space:nowrap; 
    text-overflow:ellipsis; 
    -o-text-overflow:ellipsis; 
    overflow: hidden; 
    text-align: center;
    line-height: 20px;
}

.product_nav_list li.on {
    color: #158bff;
    background: #f1f8ff;
    border-left: 2px solid #158bff;
}

.product_nav_list li.on i {
    background: #158bff;
}


.data_center {
    padding: 60px 0px 40px;
    background: #f7f7f7;
}

.data_center_title {
    width: 100%;
    overflow: hidden;
    margin-bottom: 30px;
}

.data_center_title_left {
    width: 50%;
    float: left;
    font-size: 22px;
	font-weight: bold;
	font-stretch: normal;
	letter-spacing: 0px;
    color: #333333;
    padding-left: 16px;
    border-left: 3px solid #158bff;
}

.data_center_title_right {
    float: right;
    text-align: right;
    max-width: 50%;
    font-size: 16px;
    color: #666;
    line-height: 24px;
    height: 24px;
    vertical-align: middle;
}

.data_center_title_right .img2 {
    display: none;
}

.data_center_list {
    overflow:hidden;
}

.data_center_list li {
    width: 48%;
    margin-right: 4%;
    float: left;
    background: #fff;
	box-shadow: 0px 2px 10px 0px 
        rgba(108, 108, 108, 0.14);
    margin-bottom: 30px;
}

.data_center_list li.margin0 {
    margin-right: 0px;
}

.data_center_list li a {
    display: block;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
    padding: 20px;
}

.data_center_left {
    width: 30.5%;
    float: left;
}

.data_center_right {
    width:67%;
    float: right;
    padding-top: 14px;
}

.data_center_right .img2 {
    display: none;
}
.index_download_top {
    padding-bottom: 28px;
}

.data_center_title_right img {
    width: 9px;
    height: 15px;
    margin-left: 10px;
}

.product_main {
    background: url(../images/product_center_bg.png) left top no-repeat;
    background-size: 100% 100%;
}

@media (min-width:1024px) {
    /* .data_center_list li a:hover .img1 {
        display: none;
    }
    .data_center_list li a:hover .img2 {
        display: inline-block;
    } */

    .data_center_list li:hover .index_download_top p {
        color: #0d87ff;
    }
    .product_nav_list li:hover {
        color: #158bff;
        background: #f1f8ff;
        border-left: 2px solid #158bff;
    }
    .product_nav_list li:hover i {
        background: #158bff;
    }
    .product_list li:hover .product_names {
        color: #158bff;
    }

    .product_list li:hover .product_images {
        border:1px solid #158bff;
    }
    .data_center_title_right:hover .img1 {
        display: none;
    }
    .data_center_title_right:hover .img2 {
        display: inline-block;
    }
    .data_center_title_right:hover {
        color: #0d87ff;
    }
}


@media (max-width:768px) {
    .product_main {
        padding: 20px 0px;
    }
    .product_nav {
        width: 100%;
        float: none;
        margin-bottom: 20px;
    }
    .product_right {
        width: 100%;
        float: none;
    }
    .product_nav_tit {
        width: 100%;
        height: auto;
        line-height: 38px;
        font-size: 18px;
    }
    .product_nav_list {
        overflow: auto;
        white-space: nowrap;
        padding: 10px 20px;
    }

    .product_nav_list li {
        width: auto;
        display: inline-block;
        margin-right: 20px;
        padding: 6px 14px;
        font-size: 16px;
    }
    .product_nav_list li i {
        display: none;
    }
    .product_nav_list li.on {
        border: none;
    }
    .product_list li {
        width: 48%;
        margin-right: 4% !important;
        margin-bottom: 20px;
    }
    .product_list li:nth-child(2n) {
        margin-right: 0px !important;
    }
    .product_images {
        height: 100px;
        margin-bottom: 10px;
    }
    .product_names {
        font-size: 14px;
    }
    .data_center {
        padding: 20px 0px;
    }
    .data_center_list li {
        width: 100%;
        margin:0px 0px 20px;
    }
    .data_center_list li a {
        padding: 10px;
    }
    .index_download_top p {
        max-width: 85%;
    }
    .index_download_top {
        padding-bottom: 10px;
        margin-bottom: 8px;
    }
    .data_center_right {
        padding-top: 10px;
        box-sizing: border-box;
    }
    .data_center_title_left {
        font-size: 14px;
        padding-left: 6px;
    }
    .data_center_title_right {
        font-size: 12px;
        line-height: 20px;
        height: 20px;
    }

    .data_center_title_right img {
        width: 5px;
        height: 10px;
        margin-left: 6px;
    }
    .data_center_title {
        margin-bottom: 20px;
    }
}