.solution {
    background-color: #e9ecf5;
}

.menu {
    width: 1000px;
    height: 60px;
    margin: 0 auto;
    margin-top: 20px;
    background-color: black;
    border-radius: 20px;
}

.menu ul {
    padding: 10px;
    display: flex;
    justify-content: space-between;
}

.menu li {
    height: 40px;
    line-height: 40px;
    width: 230px;
    text-align: center;
    color: #7c7c7c;
    border: #7c7c7c 1px solid;
    border-radius: 10px;

}

.menu li:hover {
    color: #fff;
    border: #fff 1px solid;
    cursor: pointer;
}

.menu .active {
    color: #fff;
    border: #fff 1px solid;
}

.context_body {
    width: 1000px;
    height: 350px;
    margin: 10px auto;
    margin-top: 10px;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
}

.context_body_con {
    width: 400%;
    height: 100%;
    display: flex;
    position: relative;
    transition: all .6s ease;
}

.pan {
    width: 1000px;
    height: 350px;
    overflow: hidden;
    overflow-y: scroll;
    background-color: #272727;
    margin: 0;
}

.pan::-webkit-scrollbar {
    display: none;
}

.pan ul {
    padding: 0;
}

.pan li {
    height: 60px;
    line-height: 60px;
    padding: 0 20px;
    border-bottom: 1px solid #272727;
    background-color: black;
    position: relative;
    color: #fff;
}

.pan li a {
    display: block;
    color: #fff;
}

.pan a::before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background-color: #FD54DB; */
    background-color: #b69a76;
    z-index: 1;
    transition: transform 0.4s;
    content: '';
    transform: scaleY(0);
    transform-origin: top center
}

.pan a:hover::before {
    transition: transform 0.3s;
    transform: none;
    transform-origin: bottom center
}


.pan article {
    position: relative;
    z-index: 2;
}

.pan .time {
    display: inline-block;
    width: 100px;
    text-align: center;
    margin-right: 50px;
}


/**********************分辨率样式***********************/
@media (min-width:1600px) {
    .container {
        width: 1400px;
        margin: 0 auto;
    }

}

@media (max-width:1600px) {
    .container {
        width: 1400px;
        margin: 0 auto;
    }

}

@media (max-width:1500px) {
    .container {
        width: 1300px;
        margin: 0 auto;
    }

}

@media (max-width:1400px) {
    .container {
        width: 1100px;
        margin: 0 auto;
    }

}

@media (max-width:1200px) {
    .container {
        width: 940px;
        margin: 0 auto;
    }

    .menu {
        width: 920px;
        border-radius: 8px;
    }

    .menu li {
        width: 220px;
    }

    .context_body {
        width: 920px;
    }

    .pan {
        width: 920px;
    }
}

@media (max-width:992px) {
    .container {
        width: 740px;
        margin: 0 auto;
    }

    .menu {
        width: 720px;
        border-radius: 8px;
    }

    .menu li {
        width: 160px;
    }

    .context_body {
        width: 720px;
    }

    .pan {
        width: 720px;
    }
}

@media (max-width:769px) {
    .container {
        width: 620px;
        margin: 0 auto;
    }

    .menu {
        width: 600px;
        border-radius: 8px;
    }

    .menu li {
        width: 140px;
    }

    .context_body {
        width: 600px;
    }

    .pan {
        width: 600px;
    }
}

@media (max-width:640px) {
    .container {
        width: 450px;
        margin: 0 auto;
    }

    .menu {
        width: 430px;
        border-radius: 8px;
        height: 35px;
    }

    .menu li {
        width: 100px;
        height: 20px;
        line-height: 18px;
        font-size: 10px;
        border-radius: 4px;
    }

    .context_body {
        width: 430px;
        height: 200px;
        margin-top: 1px;
        margin-bottom: 20px;
    }

    .pan {
        width: 430px;
        height: 200px;
    }

    .pan li {
        height: 40px;
        line-height: 40px;
        padding: 0;
        font-size: 10px;
    }

    .bannerN {
        height: 250px;
    }

    .banH2 {
        font-size: 20px;
        bottom: 150px;
    }

    .bannerN h3 {
        font-size: 16px;
        bottom: 118px;
    }
}

@media (max-width:460px) {
    .container {
        width: 340px;
        margin: 0 auto;
    }

    .bannerN {
        height: 200px;
    }

    .banH2 {
        font-size: 14px;
        bottom: 110px;
    }

    .bannerN h3 {
        font-size: 12px;
        bottom: 80px;
    }

    .menu {
        width: 320px;
        border-radius: 8px;
    }

    .menu li {
        width: 70px;
    }

    .context_body {
        width: 320px;
        height: 160px;
        margin-bottom: 40px;
    }

    .pan {
        width: 320px;
        height: 160px;
    }


}

@media (max-width:360px) {
    .container {
        width: 290px;
        margin: 0 auto;
    }


    .menu {
        width: 270px;
        border-radius: 8px;
    }

    .menu li {
        width: 65px;
        font-size: 7px;
    }

    .context_body {
        width: 270px;
        height: 130px;
        margin-bottom: 40px;
    }

    .pan {
        width: 270px;
        height: 130px;
    }

    .pan li {
        height: 30px;
        line-height: 30px;
        padding: 0;
        font-size: 7px;
    }
}

@media (max-width:300px) {
    .container {
        width: 270px;
        padding-left: 0;
        padding-right: 0;
    }

    .menu {
        width: 260px;
        border-radius: 8px;
    }

    .menu li {
        width: 60px;
    }

    .context_body {
        width: 260px;
    }

    .pan {
        width: 260px;
    }

    .bannerN {
        height: 150px;
    }

    .banH2 {
        font-size: 10px;
        bottom: 80px;
    }

    .bannerN h3 {
        font-size: 9px;
        bottom: 56px;
    }
}