.header {
    height: 490px;
    width: 100%;
    background: url(/material/images/yhyshj2023/banner.png) center top no-repeat;
}

.site-logo {
    width: 1200px;
    margin: 0 auto;
    position: relative;
}

.header div.site-logo a {
    position: absolute;
    left: 0;
    top: 20px;
    width: 400px;
    height: 65px;
    background: url(/material/images/yhyshj2023/logo.png) 0 50% no-repeat;
    background-size: 75%;
}

.content {
    border: 1px solid #83a6fc;
    height: auto;
    padding: 20px 30px;
    margin-bottom: 70px;
}

.content_title {
    background: url(/material/images/yhyshj2023/content_title.png) 50% 0 no-repeat;
    height: 117px;
    margin-bottom: 30px;
}

.content_title h2 {
    text-align: center;
    font-size: 42px;
    color: #4379fd;
    font-weight: bold;
    padding-top: 60px;
}

.side-menu2 {
    padding-left: 10px;
    padding-right: 10px;
    width: 235px;
}

.side-menu2,
.main2 {
    float: left;
}

.side-menu2 li {
    line-height: 64px;
    background: #f2f8ff;
    text-align: center;
    position: relative;
    width: 100%;
    margin-bottom: 10px;
}

.side-menu2 li.current,
.side-menu2 li:hover {
    background: linear-gradient(130deg, #4e7bee, #7fb4fd);
}

.side-menu2 li.current a,
.side-menu2 li:hover a {
    color: #ffffff;
}

.side-menu2 li.current:before,
.side-menu2 li:hover:before {
    content: '';
    width: 8px;
    height: 26px;
    position: absolute;
    left: 10px;
    top: 18px;
    margin-top: 0px;
    background: #ffda46;
}

.side-menu2 li a {
    font-size: 24px;
    font-family: "微软雅黑";
    font-weight: bold;
    color: #4379fd;
}

.main2 {
    padding-left: 27px;
    padding-right: 27px;
    width: calc( 100% - 235px);
}

.main2 ul li {
    width: 100%;
    padding-left: 27px;
    padding-right: 27px;
}

.main2 ul li a {
    display: block;
    border-bottom: 1px dashed #f8ebeb;
    width: 100%;
    padding-top: 20px;
    padding-bottom: 20px;
}

.main2 ul li a h4 {
    color: #333;
    font-size: 20px;
    font-family: "pf";
    line-height: 40px;
    font-weight: bold;
}

.main2 ul li a span {
    font-size: 16px;
    color: #333;
    line-height: 36px;
    margin-right: 50px;
}

.headline2 {
    width: 100%;
    background: #f2f8ff;
    color: #333;
    border-radius: 25px;
    font-size: 30px;
    line-height: 60px;
    font-weight: bold;
    text-align: center;
    font-family: "微软雅黑";
    margin-bottom: 20px;
}


/* 响应式 */

@media (max-width: 1200px) {
    .grid {
        width: 100%;
    }
    .content {
        padding: 20px
    }
    ul li div span {
        width: 100%;
        display: block;
    }
    .site-logo {
        position: absolute;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .header {
        height: 180px;
        background-size: cover;
    }
    .header .site-logo {
        width: 50%;
        background-size: 100%;
    }
    .header div.site-logo a {
        top: 0;
    }
    .side-menu2 {
        width: 100%;
        margin-bottom: 20px
    }
    .side-menu2 li {
        width: 49%;
        margin-left: 0.5%;
        margin-right: 0.5%;
        float: left
    }
    .main2 {
        width: 100%;
        padding-left: 10px;
        padding-right: 10px
    }
    .grid>h3 {
        font-size: 30px;
        height: 120px;
        padding-top: 40px
    }
}

@media (max-width: 480px) {
    .side-menu2 li {
        border-right: 1px solid #fff
    }
    .side-menu2 li.current:before {
        display: none
    }
    .main2 ul li {
        padding-left: 0px;
        padding-right: 0px
    }
}