/* NAVIGATION */
.section_page .nav_main{
    padding: 25px 0;
    background-color: #1976d2;
}
    .section_page .nav_main .nav{
        width: 1530px;
        margin: auto;
    }
        .section_page .nav_main .nav .item{
            float: left;
            margin: 0 25px 0 0;
            font-size: 12px;
            font-weight: 500;
        }
            .section_page .nav_main .nav .item a{
                color: #fff;
                text-decoration: none;
                float: left;
                margin: 0 25px 0 0;
            }
            .section_page .nav_main .nav .item:not(.last) a:hover{
                text-decoration: underline;
            }
            .section_page .nav_main .nav .item img{
                float: left;
                width: 20px;
                margin: 4px 0 0 0;
            }
            .section_page .nav_main .nav .item.last a{
                margin: 0;
            }
/* NAVIGATION(END) */

/* MAIN */
.section_page .main{
    padding: 100px 0;
    border-bottom: 2px solid #eceff1;
}
    .section_page .main .main_in{
        padding: 0 80px;
        width: 1170px;
        margin: auto;
        font-size: 14px;
        color: #263238;
        line-height: 24px;
    }
        .section_page .main .main_in .tit{
            font-size: 36px;
            font-weight: 600;
            color: #1976d2;
            margin: 0 0 35px 0;
            line-height: 50px;
        }
/* MAIN(END) */

/* PRODUCTS */
.section_page .items{
    margin: 100px auto 75px auto;
    width: 1530px;
}
    .section_page .items .item{
        float: left;
        width: 340px;
        height: 420px;
        border: 10px solid #eceff1;
        position: relative;
        text-decoration: none;
        display: block;
        margin: 0 30px 30px 0;
    }
    .section_page .items .item:nth-child(4n){
        margin: 0 0 30px 0;
    }
    .section_page .items .item:hover{
        border: 10px solid #1976d2;
    }
    .section_page .items .item.not_skl:hover{
        border: 10px solid #cfd8dc;
    }
    .section_page .items .item .left_top_corner{
        position: absolute;
        padding: 10px;
        background-color: #1976d2;
        left: -10px;
        top: -10px;
    }
    .section_page .items .item.not_skl .left_top_corner{
        background-color: #cfd8dc;
    }
        .section_page .items .item .left_top_corner img{
            width: 25px;
            float: left;
        }
        .section_page .items .item .left_top_corner .t{
            display: none;
            color: #fff;
            font-size: 12px;
            margin: 7px 0 0 10px;
            float: left;
            line-height: 10px;
        }
        .section_page .items .item:hover .left_top_corner .t{
            display: block;
        }
    .section_page .items .item .pic{
        margin: 35px auto;
        width: 190px;
        height: 175px;
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center;
    }
    .section_page .items .item .over_name{
        margin: 0 auto 20px auto;
        width: 190px;
        line-height: 15px;
        text-align: center;
        font-size: 11px;
        color: #4f5b62;
    }
    .section_page .items .item .name{
        margin: 0 auto 20px auto;
        width: 190px;
        line-height: 16px;
        text-align: center;
        font-size: 16px;
        font-weight: 700;
        color: #263238;
    }
    .section_page .items .item .det{
        margin: auto;
        width: 186px;
        line-height: 45px;
        text-align: center;
        font-size: 14px;
        color: #1976d2;
        font-weight: 500;
        border: 2px solid #1976d2;
    }
    .section_page .items .item:hover .det{
        background-color: #1976d2;
        color: #fff;
    }
    .section_page .items .item .right_bottom_corner{
        position: absolute;
        width: 50px;
        height: 50px;
        background-color: #1976d2;
        bottom: -10px;
        right: -10px;
    }
    .section_page .items .item.not_skl .right_bottom_corner{
        background-color: #cfd8dc;
    }
        .section_page .items .item .right_bottom_corner .w_sq{
            position: absolute;
            width: 40px;
            height: 40px;
            background-color: #fff;
            top: 0;
            left: 0;
        }
/* PRODUCTS(END) */


/* MEDIA QUERY */

/* 1620px */
@media (max-width: 1620px) {
    .section_page .nav_main .nav{
        width: 1170px;
    }
    .section_page .main .main_in {
        width: 940px;
    }
    .section_page .items{
        width: 1170px;
    }
        .section_page .items .item{
            width: 250px;
        }
}
/* 1620px(end) */

/* 1270px */
@media (max-width: 1270px) {
    .section_page .nav_main .nav {
        width: 940px;
    }
    .section_page .main .main_in {
        padding: 0;
    }
    .section_page .items{
        width: 940px;
    }
        .section_page .items .item {
            width: 273px;
        }
        .section_page .items .item:nth-child(4n){
            margin: 0 30px 30px 0;
        }
        .section_page .items .item:nth-child(3n){
            margin: 0 0 30px 0;
        }
}
/* 1270px(end) */

/* 1040px */
@media (max-width: 1040px) {
    .section_page .nav_main .nav {
        width: 725px;
    }
    .section_page .main {
        padding: 50px 0;
    }
        .section_page .main .main_in {
            width: 725px;
        }

    .section_page .items{
        width: 725px;
    }
        .section_page .items .item {
            width: 327.5px;
        }
        .section_page .items .item:nth-child(3n){
            margin: 0 30px 30px 0;
        }
        .section_page .items .item:nth-child(2n){
            margin: 0 0 30px 0;
        }
}
/* 1040px(end) */

/* 825px */
@media (max-width: 825px) {
    .section_page .nav_main {
        display: none;
    }
    .section_page .main .main_in {
        width: 290px;
    }
        .section_page .main .main_in .tit {
            font-size: 30px;
            line-height: 35px;
        }

    .section_page .items{
        width: 290px;
    }
        .section_page .items .item {
            width: 270px;
        }
    .section_page .items .item:nth-child{
        margin: 0 0 30px 0!important;
    }
}
/* 825px(end) */

/* MEDIA QUERY(END) */