.wrapper-1300 {
    width: 1300px;
    margin: 0 auto;
    /* overflow: hidden; */
}

.nb-menu {
    background-color: rgb(242, 242, 242);
    line-height: 35px;
}

.case {
    width: 100%;
}

.case .title_tag {
    text-align: center;
}

.title_tag ul {
    display: flex;
    justify-content: center;
}

.title_tag li {
    float: left;
    margin: 30px 15px;
    font-size: 18px;
    border: 1px solid black;
    overflow: hidden;
    border-radius: 8px;
}

.title_tag li a {
    display: block;
    padding: 5px 25px;
}

.case_content {
    width: 100%;
}

.case_content .content {
    overflow: hidden;
}

.case_content .content li {
    float: left;
    padding: 15px;
    width: 33%;
    box-sizing: border-box;
}

.case_content a {
    display: inline-block;
    background: rgb(243, 243, 243);
    padding: 5% 0;
    transition: all .35s ease;
}

.case_content a:hover {
    box-shadow: 0 0 10px rgb(206, 206, 206);
}

.case_content a .image {
    overflow: hidden;
    width: 90%;
    margin: 0 auto;
    height: 260px;
}

.case_content a .image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all .6s ease;
}

.case_content a:hover .image img {
    transform: scale(1.1, 1.1);
}

.case_content .text {
    box-sizing: border-box;
    padding: 10px;
    font-size: 15px;
}

.case_content .text .title {
    font-size: 20px;
    color: rgb(2, 140, 70);
    font-weight: 600;
}

.case_content .text .tt {
    color: rgb(159, 159, 159);
    margin-top: 6px;
    line-height: 1.8;
}

.case_content .text span {
    float: right;
    display: block;
    overflow: hidden;
    width: 40px;
    height: 28px;
    position: relative;
}

.case_content .text span::before {
    content: "";
    display: inline-block;
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 28px;
    opacity: 1;
    background: url(../images/image/image/jt-1.png) center no-repeat;
    transition: all .4s ease;
}

.case_content .text span::after {
    content: "";
    display: inline-block;
    position: absolute;
    left: -40px;
    top: 0;
    width: 40px;
    height: 28px;
    opacity: 0;
    background: url(../images/image/image/jt-1.png) center no-repeat;
    transition: all .4s ease;
}

.case_content .content li:hover .text span::before {
    left: 40px;
    opacity: 0;
}

.case_content li:hover .text span::after {
    left: 0;
    opacity: 1;
}

.footer {
    margin-top: 80px;
    margin-bottom: 80px;
}

.footer .list {
    display: flex;
    justify-content: center;
}

.footer .list li {
    /* float: left; */
    margin: 0 5px;
}

.footer .list a {
    display: inline-block;
    width: 38px;
    height: 38px;
    overflow: hidden;
    border-radius: 50%;
    box-sizing: border-box;
    text-align: center;
    border: 1px solid black;
}

.footer .list a.in,
.footer .list a:hover {
    background: linear-gradient(rgba(19, 159, 175), rgba(37, 198, 120));
    border: 1px solid rgb(0, 0, 0, 0);
    color: #fff;
}

.footer .list a span {
    display: block;
    font-size: 20px;
    line-height: 36px;
}

@media only screen and (max-width: 1200px) {}

@media only screen and (max-width: 960px) {
    .wrapper-1300 {
        width: 100%;
    }

    .case {
        margin-top: 80px;
    }
}

@media only screen and (max-width: 760px) {
    .case_content .content li {
        padding: 5px;
        width: 50%;
    }

    .case_content a .image {
        height: 130px;
    }

    .case_content .text {
        padding: 5px;
        font-size: 12px;
    }

    .case_content .text .title {
        font-size: 15px;
    }

    .case_content .text span {
        width: 20px;
        height: 20px;
    }

    .case_content .text span::before {
        content: "";
        display: inline-block;
        position: absolute;
        left: 0;
        top: 0;
        width: 20px;
        height: 20px;
        opacity: 1;
        background: url(../images/image/image/jt-1.png) center no-repeat;
        transition: all .4s ease;
        background-size: 100%;
    }

    .case_content .text span::after {
        content: "";
        display: inline-block;
        position: absolute;
        left: -20px;
        top: 0;
        width: 20px;
        height: 20px;
        opacity: 0;
        background: url(../images/image/image/jt-1.png) center no-repeat;
        background-size: 100%;
        transition: all .4s ease;
    }

    .case_content .content li:hover .text span::before {
        left: 20px;
        opacity: 0;
    }
}