.logo {
    display: flex;
    max-width: 80rem;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.logo img {
    vertical-align: middle;
}

.logo button {
    display: none;
}

@media screen and (max-width: 75rem) {
    .logo {
        justify-content: space-between;
        padding: 0;
    }
    .logo img {
        max-width: 75%;
    }
    .logo a:first-child :last-child {
        display: none;
    }

    .logo a:last-of-type {
        display: none;
    }

    .logo button {
        display: flex;
        flex-direction: column;
        background-color: #fff;
        border: none;
        height: min-content;
        align-self: center;
        cursor: pointer;
    }

    .logo button span {
        border: 1px solid #ccc;
        width: 2rem;
        margin: .3rem;
    }
}

.nav {
    background-image: linear-gradient(to right, rgb(19, 81, 143) 0%, rgba(39, 134, 230, 1));
}

.nav ul {
    display: flex;
    max-width: 80rem;
}

.nav ul li {
    flex: 1 0 auto;
    text-align: center;
}

.nav ul li a {
    color: white;
    padding: 0.7rem 0;
    font-size: 1.1rem;
    line-height: 1.5;
}

@media screen and (max-width:75rem) {
    .nav {
        background-image: none;
        position: relative;
    }

    .nav ul {
        background-image: linear-gradient(to right, rgba(0, 104, 222, 0.9), rgba(0, 147, 222, .6));
        flex-direction: column;
        position: absolute;
        width: 70%;
        left: -100%;
        height: 100vh;
        transition: left 600ms linear;
        z-index: 999;
    }

    .nav ul li {
        flex: 0 0 auto;
    }
}

#banner {
    margin-bottom: 3rem;
}

#banner img {
    max-width: 100%;
}

@media screen and (max-width: 75rem) {
    #banner img {
        width: 100vw;
    }
}

#PRWrap {
    margin-bottom: 5rem;
}

#PRWrap .main {
    max-width: 80rem;
    display: grid;
    grid-template-rows: repeat(4, 1fr);
    grid-template-columns: repeat(4, 1fr);
    row-gap: 1.5rem;
    column-gap: 1.5rem;
}

#PRWrap .main li {
    box-sizing: border-box;
    text-align: center;
    overflow: hidden;
    border-radius: 1em;
    overflow: hidden;

}

#PRWrap .main a:hover img {
    transition: transform .3s linear;
    transform: scale(105%, 105%);
}

#PRWrap .main a img {
    transition: transform .5s ease-in;
    transform: scale(100%, 100%);
}

#PRWrap .main li:nth-child(1) {
    grid-row: 1/3;
    grid-column: 1/3;
}

#PRWrap .main li:nth-child(2) {
    grid-row: 3/5;
    grid-column: 1/3;
}

#PRWrap .main li:nth-child(3) {
    grid-row: 1/3;
    grid-column: 3/5;
}

#PRWrap .main li:nth-child(4) {
    grid-row: 3/5;
    grid-column: 3/4;
}

#PRWrap .main li:nth-child(5) {
    grid-row: 3/5;
    grid-column: 4/5;
}

#PRWrap .main li img {
    max-width: 100%;
    vertical-align: middle;
}

@media screen and (max-width: 75rem) {
    #PRWrap {
        margin-bottom: 5rem;
        padding: 0 .2rem;
    }

    #PRWrap .main {
        max-width: 100%;
        grid-template-rows: repeat(3, 1fr);
        grid-template-columns: repeat(2, 1fr);
        column-gap: .5rem;
        row-gap: .2rem;
    }

    #PRWrap .main li:nth-child(1) {
        grid-row: 1/2;
        grid-column: 1/3;
    }

    #PRWrap .main li:nth-child(2) {
        display: none;
    }

    #PRWrap .main li:nth-child(3) {
        grid-row: 2/3;
        grid-column: 1/3;
    }

    #PRWrap .main li:nth-child(4) {
        grid-row: 3/4;
        grid-column: 1/2;
    }

    #PRWrap .main li:nth-child(5) {
        grid-row: 3/4;
        grid-column: 2/3;
    }
}

#caseWrap {
    margin-bottom: 5rem;
}

#caseWrap .main {
    width: 80rem;
}

#caseWrap .main ul {
    display: flex;
}

#caseWrap .main ul::after,
#caseWrap .main ul::before {
    content: "";
    display: table;
    clear: both;
}

#caseWrap .main li {
    width: 30%;
    text-align: center;
    border-radius: 2rem;
    position: relative;
    border-radius: 2rem;
    overflow: hidden;
}

#caseWrap .main span {
    display: block;
    position: absolute;
    bottom: 0;
    background-color: rgba(0, 0, 0, .5);
    color: #fff;
    padding: .5em;
    white-space: nowrap;
    text-overflow: ellipsis;
    width: 100%;
    overflow: hidden;

}

#caseWrap .main img {
    max-width: 100%;
    vertical-align: middle;
}

@media screen and (max-width: 75rem) {
    #caseWrap {
        width: 100%;
        overflow: hidden;
    }
}

#culture {
    padding: 5rem 0;
    background-image: url(../images/img44.jpg);
    background-repeat: no-repeat;
    background-origin: padding-box;
    background-position-x: center;
    background-size: cover;
    background-attachment: fixed;
    text-align: center;
    margin-bottom: 5rem;
}

#culture::before,
#culture::after {
    display: table;
    content: "";
    clear: both;
}

#culture .title {
    font: 900 3rem "al_M";
    color: #fff;
    margin-bottom: 2rem
}

#culture video {
    max-width: 80rem;
}

@media screen and (max-width: 75rem) {
    #culture {
        background-position-x: 85%;
    }
    #culture .title {
        display: none;
    }

    #culture video {
        max-width: 99%;
    }
}

#honor .layout {
    max-width: 80rem;
    margin-bottom: 5rem;
}

#honor .layout ul {
    display: flex;
}

#honor .layout li {
    padding: 0 .5rem;
    align-self: center;
}

@media screen and (max-width: 75rem) {
    #honor .layout {
        max-width: 100vw;
        overflow: hidden;
    }
}
#news{
    margin-bottom: 5rem;
}
#news .layout {
    display: flex;
    justify-content: space-between;
    width: 80rem;
}
#news .newsL{
    width: 50%;
}
#news .newsL li{
    margin-bottom: 1.5em;
}
#news .newsL span{
    display: block;
}
#news .newsL .title{
    font-size: 1.5rem;
    margin-bottom: .5em;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
#news .newsL .des{
    margin-bottom: .5rem;
    color: #333;
}
#news .newsR{
    width: 40%;
}
#news .newsR .container{
    background-image: linear-gradient(180deg, rgb(19, 81, 143) 0%, rgba(39, 134, 230, 1) 100%);
    height: 100%;
    border-radius: 1.5rem;
    padding: 2rem 1.5em
}
#news .newsR a{
    height: 100%;
    color: #fff;
}
#news .newsR img{
    display: block;
    padding: .2rem;
    background-color: #fff;
    border-radius: 1.5em;
}
#news .newsR span{
    display: block;
}
#news .newsR .title{
    font-size: 1.5rem;
    margin: 1em 0;
}
#news .newsR .des{
    margin-bottom: 1rem;
}

#footer {
    background-image: linear-gradient(45deg, rgb(19, 81, 143) 0%, rgba(39, 134, 230, 1) 100%);
}
@media screen and (max-width: 75rem) {
    #news .layout {
        width: 100%;
        padding: 0 .5rem;
        flex-wrap: wrap;

    }
    #news .newsL{
        width: 100%;
        margin-bottom: 1rem;
    }
    #news .newsR{
        width: 100%;
    }
    #news .newsL .title{
        font-size: 1.2rem;
        margin-bottom: .2em;
    }
    #news .newsL .des {
        margin-bottom: .2em;
    }
}
#footer .layout {
    width: 80rem;
    padding: 2rem 0;
}

#footer ul.nav {
    display: flex;
    background-color: rgba(255, 255, 255, 0.1);
}

#footer ul.nav li {
    flex: 1 0 auto;
    text-align: center;
}

#footer ul.nav li a {
    color: white;
    display: block;
    padding: 0.5rem 1rem;
}

#footer .info {
    display: flex;
    align-items: center;
    margin: 3rem 0;
    justify-content: space-between;
}

#footer .info img {
    height: fit-content;
}

#footer .info>div:last-child {
    color: #fff;
    flex-basis: 40%;
}

#footer .info span {
    display: block;
    line-height: 2;
}

#footer .info span:first-child {
    font-size: 2rem;
    font-family: "al_M";
}

#footer .hmsicp {
    text-align: center;
}

#footer .hmsicp a {
    color: #fff;
}

@media screen and (max-width: 75rem) {
    #footer .layout {
        width: 100%;
        box-sizing: border-box;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    #footer ul.nav {
        display: none;
    }

    #footer .info {
        flex-direction: column;
        text-align: center;
    }

    #footer .info img:first-child {
        display: none;
    }

    #footer .info span:first-child {
        visibility: hidden;
    }
}