@font-face {
    font-family: "思源黑体 CN Light";
    src: url("../font/SourceHanSansCN-Light.woff2") format('woff2');
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    height: 100%;
    font-family: '思源黑体 CN Light';
    font-size: 17px;
}

a {
    text-decoration: none;
}

a:visited,
a:link {
    text-decoration: none;
    color: #747474;
}

a:hover {
    text-decoration: none;
    color: #010101;
}

hr {
    width: 100%;
    background-color: #c7c7c7c7;
    height: 1px;
    z-index: -1;
    border: none;
    margin: 0;
}

.layout {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}

header {
    width: 100%;
    margin: 0 auto;
    min-height: auto;
}

footer {
    margin-top: auto;
}

#footer>div {
    padding: 15px 0 56px;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding: 26px 0 0 0;
    /* height: 92px; */
}

.nav-logo {
    padding-bottom: 10px;
}
.nav-logo>img {
    height: 47px;
}
.pc-menu {
    height: 40px;
}

.pc-menu>div {
    text-align: center;
}

.nav-active {
    border-bottom: 2px #202020 solid;
}

.container {
    margin-right: auto;
    margin-left: auto;
    padding-left: 10px;
    padding-right: 10px;
}
.container-bottom {
    padding-bottom: 26px;
}


#page {
    /* min-height: 100%; */
    margin: 0 auto;
    min-height: auto;
}

.all-page {
    position: relative;
    left: 0;
    -webkit-transition: left 500ms;
    -moz-transition: left 500ms;
    -o-transition: left 500ms;
    transition: left 500ms;
}
.mobile-navigation{
    position: fixed;
    top: 0;
    left: 0;
    background-color: #232323;
    height: 100%;
    width: 100%;
    color: white;
    -webkit-transition: left 500ms;
    -moz-transition: left 500ms;
    -o-transition: left 500ms;
    transition: left 500ms;
    padding: 30px 0 0 30px;
}
.collapsed-right {
    left: -100%;
}

.collapsed-left {
    left: 100%;
}

.introduction {
    position: relative;
    top: 18%;
    /* -webkit-transform: translateY(-45%);
    transform: translateY(-45%); */
    z-index: 100;
}

.home-policy {
    letter-spacing: 2px;
    font-size: 14px;
    position: absolute;
    bottom: 14px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
}

.home {
    height: 100%;
}
.index-logo{
    padding: 64px 0;
    text-align: center;
}
.index-logo>a{
    display: inline-block;
}
.index-menu {
    display: flex;
    justify-content: space-around;
}

.index-menu-item {
    color: white;
    cursor: pointer;
    width: 31.5%;
    border: 3px white solid;
    display: flex;
    align-items: center;
    justify-content: space-around;
    flex-direction: column;
}

.active {
    color: black;
    background-color: white;
}

.background-slideshow {
    width: 100%;
}

.slideshow-front {
    list-style: none;
    width: 100%;
    height: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    padding: 0;
    margin: 0;
}

.slideshow-front li {
    margin-left: 0;
    position: fixed;
    width: 101%;
    height: 101%;
    top: -0.5%;
    left: -0.5%;
    opacity: 0;
    -webkit-transition: opacity 1s;
    transition: opacity 1s;
    background-size: cover;
    background-position: center center;
}

.slideshow-front li.bgActive {
    opacity: 1;
}

.header-img {
    aspect-ratio: 1360 / 275;
}
.header-img>img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-video {
    object-fit: cover;
    display: block;
    height: 100%;
    width: 100%;
    filter: grayscale(100%);
    transition: 1s ease-in-out;
}
.header-video-hover {
    filter: grayscale(0);
    transition: 0.5s ease-in-out;
}

.about-container {
    padding: 75px 0 177px;
    width: 650px;
    margin: 0 auto;
}

.about-title {
    font-size: 25px;
    font-weight: bold;
}

.about-title-en {
    font-size: 21px;
    color: #929292;
}
.about-content>p{
    text-indent: 2em;
}
.contact-container {
    padding: 75px 0 177px;
    width: 650px;
    margin: 0 auto;
}
.contact-title-en {
    font-size: 17px;
    color: #929292;
}
.contact-content {
    text-align: center;
    padding: 80px 0 0;
}

.company-title {
    font-size: 21px;
    font-weight: bold;
    margin: 10px 0;
}

.company-title-en {
    font-size: 16px;
    color: #929292;
    margin: 10px 0 30px;
}

.company-info {
    margin: 10px 0;
}

.project-list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    /* background-color: red; */
}

.project-list>div {
    width: calc((100% - 40px) / 3);
    /* background-color: black; */
    /* transition: 0.5s ease-in-out; */
}
.project-list>div>a {
    color: #010101;
}

/* .project-lists > div:hover {
background-color: lightblue;
transition: 0.5s ease-in-out;
} */
.project-cover {
    filter: grayscale(100%);
    transition: 0.5s ease-in-out;
    width: 100%;
    aspect-ratio: 2/1;
    object-fit: cover;
    display: block;
}

.project-cover:hover {
    filter: grayscale(0);
    transition: 0.5s ease-in-out;
    cursor: pointer;
}
.project-name{
    font-size: 15px;
    padding: 8px 0;
}

.detail-p1>img {
    display: block;
}

.detail-text {
    color: white;
    background-color: black;
    padding: 40px 25%;
    color: gray;
}

.detail-text>p {
    font-size: 17px;
    text-indent: 2em;
}

.detail-imgbody>div {
    display: flex;
}

.detail-imgbody>div>div {
    width: 50%;
}

.detail-imgbody>div>div>img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-movie>video {
    width: 100%;
}

.detail-mobile-images {
    display: none;
}

@media (max-width: 767px) {
    .test-font {
        color: blue;
    }
    .container {
        width: calc(100% - 20px);
    }

    .header-img {
        aspect-ratio: 900 / 275;
    }
    .header-image {
        display: none;
    }

    .header-image-thin {
        display: block;
    }

    .index-menu {
        display: flex;
        justify-content: space-between;
        margin: 0 auto;
        flex-direction: column;
        align-items: center;
        height: 180px;
    }

    .index-menu-item{
        width: 70%;
        height: 40px;
        font-size: 16px;
    }

    .index-logo-img{
        width: 50%;
        height: 50%;
    }

    .pc-menu {
        display: none;
    }

    .mobile-menu{
        display: block;
        height: 40px;
        z-index: 1;
    }
    .navbar-toggle{
        cursor: pointer;
        display: flex;
        align-items: center;
        width: 52px;
        justify-content: space-between;
    }
    .navbar-toggle:hover+.mobile-submenu{
        height: 160px;
        transition: height 0.3s linear;
    }
    .mobile-submenu{
        overflow: hidden;
        height: 0px;
        transition: height 0.3s linear;
    }
    .mobile-submenu-item {
        text-align-last: justify;
        font-size: 10px;
        background-color: #535353;
        opacity: 0.6;
        color: white;
        margin: 1px 0;
        padding: 6px;
    }
    .mobile-submenu-item>a{
        color: white;
    }
    .mobile-submenu-top {
        display: flex;
        flex-direction: row-reverse;
        height: 15px;
        opacity: .35;
    }
    .mobile-submenu-top>img {
        display: block;
    }

    .icon{
        display: flex;
        height: 19px;
        flex-direction: column;
        justify-content: space-around;
    }

    .icon-bar {
        width: 14px;
        height: 1px;
        background-color: #232323;
        display: block;
        border-radius: 2px;
    }
    
    .mobile-nav-close{
        width: calc(100% - 52px);
        display: flex;
        flex-direction: row-reverse;
    }
    .mobile-nav-close>img{
        height: 26px;
        width: 26px;
        cursor: pointer;
    }
    .mobile-menu-list>div>a{
        margin: 20px 0;
        display: block;
    }
    .mobile-menu-list>div>a:hover{
        color: white;
    }
    .mobile-nav-active>a{
        color: white;
    }

    .pc-menu>div {
        margin: 0 6px 0;
    }

    .about-container {
        padding: 70px 0 40px;
        width: 96%;
        margin: 0 auto;
    }
    .contact-container {
        padding: 70px 0 40px;
        width: 96%;
        margin: 0 auto;
    }

    .project-list {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        flex-direction: column;
        gap: 20px;
    }
    .project-list>div {
        width: 100%;
    }

    .detail-imgbody>div {
        display: block;
    }

    .detail-imgbody>div>div {
        width: 100%;
    }

    .detail-imgbody>div>div>img {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .detail-imgbody {
        display: none;
    }
    .detail-mobile-images {
        display: block;
    }
    .detail-mobile-images>img {
        width: 100%;
        display: block;
    }

    .detail-text {
        padding: 30px;
    }
}

@media (min-width: 768px) {
    .container {
        width: 740px;
    }

    .header-image {
        display: block;
        filter: grayscale(100%);
        transition: 0.5s ease-in-out;
    }
    .header-image:hover {
        filter: grayscale(0);
        transition: 0.5s ease-in-out;
    }
    .header-image-thin {
        display: none;
    }

    .index-menu-item{
        height: 40px;
        font-size: 16px;
    }

    .index-logo-img{
        width: 50%;
        height: 50%;
    }

    

    .pc-menu{
        display: flex;
        justify-content: space-between;
    }
    .pc-menu>div {
        margin: 0 15px 0;
    }
    .mobile-menu{
        display: none;
    }

    .project-list>div {
        width: calc((100% - 20px) / 2);
        /* background-color: black; */
        /* transition: 0.5s ease-in-out; */
    }

    .test-font {
        color: red;
    }

}

@media (min-width: 1025px) {
    .container {
        width: 960px;
    }

    .index-menu-item{
        height: 124px;
        font-size: 30px;
    }

    .index-logo-img{
        width: 100%;
        height: 100%;
        
    }

    .pc-menu>div {
        margin: 0 28px 0;
    }

    .project-list>div {
        width: calc((100% - 40px) / 3);
        /* background-color: black; */
        /* transition: 0.5s ease-in-out; */
    }

    .test-font {
        color: green;
    }
}

@media (min-width: 1400px) {
    .container {
        width: 1380px;
    }

    .pc-menu>div {
        margin: 0 28px 0;
    }

    .test-font {
        color: yellow;
    }
}