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

.resp_page .items{
    width: 1530px;
    margin: 50px auto 100px auto;
}
    .resp_page .tit{
        font-size: 36px;
        font-weight: 600;
        color: #1976d2;
        margin: 100px auto 50px auto;
        width: 1530px;
        text-align: center;
    }
        .resp_page .items .item{
            float: left;
            width: 280px;
            height: 360px;
            border: 10px solid #eceff1;
            position: relative;
            text-decoration: none;
            padding: 30px;
            cursor: pointer;
            margin: 0 30px 30px 0;
        }
        .resp_page .items .item:nth-child(4n){
            margin: 0 0 30px 0;
        }
        .resp_page .items .item:hover{
            border: 10px solid #1976d2;
        }
        .resp_page .items .item .left_top_corner{
            position: absolute;
            background-color: #1976d2;
            left: -10px;
            top: -10px;
            width: 50px;
            height: 50px;
        }
            .resp_page .items .item .left_top_corner .sq_w{
                position: absolute;
                background-color: #fff;
                bottom: 0px;
                right: 0px;
                width: 40px;
                height: 40px;
            }
            .resp_page .items .item .pic{
                margin: 0 0 25px 0;
                width: 100%;
                height: 260px;
                background-size: cover;
                background-repeat: no-repeat;
                background-position: center;
            }
                .resp_page .items .item .pic img{
                    display: none;
                }
            .resp_page .items .item .name{
                margin: 0 0 20px 0;
                text-align: center;
                font-size: 14px;
                font-weight: 500;
                color: #263238;
            }
            .resp_page .items .item .det{
                width: 275px;
                line-height: 45px;
                text-align: center;
                font-size: 14px;
                color: #1976d2;
                font-weight: 500;
                border: 2px solid #1976d2;
                position: relative;
                z-index: 1;
            }
            .resp_page .items .item:hover .det{
                background-color: #1976d2;
                color: #fff;
            }
            .resp_page .items .item .right_bottom_corner{
                position: absolute;
                width: 50px;
                height: 50px;
                background-color: #1976d2;
                bottom: -10px;
                right: -10px;
            }
                .resp_page .items .item .right_bottom_corner .w_sq{
                    position: absolute;
                    width: 40px;
                    height: 40px;
                    background-color: #fff;
                    top: 0;
                    left: 0;
                }
/* MEDIA QUERY */

/* 1620px */
@media (max-width: 1620px) {
    .resp_page .nav_main .nav{
        width: 1170px;
    }
    .resp_page .tit{
        width: 1170px;
    }
    .resp_page .items{
        width: 1170px;
    }
        .resp_page .items .item {
            width: 190px;
        }
            .resp_page .items .item .det {
                width: 185px;
            }
}
/* 1620px(end) */

/* 1270px */
@media (max-width: 1270px) {
    .resp_page .nav_main .nav {
        width: 940px;
    }
    .resp_page .tit{
        width: 940px;
    }
    .resp_page .items{
        width: 940px;
    }
        .resp_page .items .item {
            width: 213px;
        }
        .resp_page .items .item:nth-child(4n){
            margin: 0 30px 30px 0;
        }
        .resp_page .items .item:nth-child(3n){
            margin: 0 0 30px 0;
        }
            .resp_page .items .item .det {
                width: 209px;
            }

}
/* 1270px(end) */

/* 1040px */
@media (max-width: 1040px) {
    .resp_page .nav_main .nav {
        width: 725px;
    }
    .resp_page .tit{
        width: 725px;
    }
    .resp_page .items{
        width: 725px;
    }
        .resp_page .items .item {
            width: 267.5px;
        }
        .resp_page .items .item:nth-child(3n){
             margin: 0 30px 30px 0;
        }
        .resp_page .items .item:nth-child(2n){
            margin: 0 0 30px 0;
        }
            .resp_page .items .item .det {
                width: 263px;
            }

}
/* 1040px(end) */

/* 825px */
@media (max-width: 825px) {
    .resp_page .nav_main {
        display: none;
    }
    .resp_page .tit{
        width: 290px;
    }
    .resp_page .items{
        width: 290px;
    }
        .resp_page .items .item {
            width: 210px;
            margin: 0 0 30px 0!important;
        }
            .resp_page .items .item .det {
                width: 206px;
            }
}
/* 825px(end) */

/* MEDIA QUERY(END) */