@media screen and (min-width: 668px) and (min-height: 416px) {
    .row--md-reverse {
        -ms-flex-direction: row-reverse;
        flex-direction: row-reverse
    }
}

.screen {
    position: relative
}

@media screen and (min-width: 668px) and (min-height: 416px) {
    .screen {
        min-height: 100vh
    }

    .screen--auto {
        min-height: 0
    }

    .screen.vertical-align {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-align: center;
        align-items: center;
        -ms-flex-pack: center;
        justify-content: center
    }
}

.container {
    position: relative;
    width: 80%;
    margin: 0 auto;
}

.intro__content {
    z-index: 1;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    height: 100vh;
    height: calc(100vh + 0px)
}

.intro__content__text {
    -ms-flex: 1 0 auto;
    flex: 1 0 auto;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    -ms-flex-pack: center;
    justify-content: center;
    padding-bottom: 190px;
    color: #fff;
}
.intro__content__text h1{
    font-size: 102px;
}
.intro__content__text h2{
    font-size: 60px;
    line-height: 150px;
    font-weight: bold;
}
.intro__content__text h3{
    font-size: 28px;
}
.intro__content__text p{
    font-size: 40px;
}

.intro__content__text .btn {
    margin-top: 18px
}

.intro__content__nav {
    -ms-flex: 0 0 auto;
    flex: 0 0 auto
}

.intro__gallery img {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%
}

.intro__gallery img.animation--fade-in {
    z-index: 1
}

@media screen and (max-width: 979px) and (max-height: 415px) and (orientation: landscape),(min-width: 668px) and (min-height: 416px) {
    .intro__content__text {
        padding-bottom: 40px
    }
}

@media screen and (min-width: 668px) and (min-height: 416px) {
    .intro__content__text {
        padding-bottom: 0
    }

    .intro__content--inner {
        height: 90vh
    }
}

.background-cover {
    position: absolute;
    left: 0;
    top: 0;
}
.background-cover, .background-cover img, .background-cover video {
    display: block;
    width: 100%;
    height: 100%;
    overflow: hidden;
    object-fit: cover;
    object-position: center;
}
.with-scroller .scroller__content {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: hidden;
}

.al_phone{
    display: none;
}
.al_phone ul li{
    width: 49.5%;
    float: left;
    position: relative;
    margin-bottom: 1%;
    overflow: hidden;
}
.al_phone ul li:hover{
    box-shadow: 0px 0px 5px #e84c00;
}
.al_phone ul li:nth-child(2n){
    width: 49.5%;
    float: right;
}
.al_phone ul li img{
    display: block;
    width: 100%;
}
.al_phone ul li .al_phone_text{
    position: absolute;
    width: 100%;
    left: 5%;
    bottom: 5%;
    color: #fff;
    line-height: 20px;
}
.al_phone ul li .al_phone_text h1{
    font-size: 18px;
    font-weight: bold;  
}
.al_phone ul li .al_phone_text h2{
    font-size: 12px; 
}
.al_phone ul li .al_phone_img{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.al_phone ul li .al_phone_img img{
    display: block;
    width: 90%;
    margin: 0 auto;
}


    /*大层*/
    .w_container{width:100%;margin: 0 auto;}
    /*瀑布流层*/
    .waterfall{
        -moz-column-count:3; /* Firefox */
        -webkit-column-count:3; /* Safari 和 Chrome */
        column-count:3;
        -moz-column-gap: 5px;
        -webkit-column-gap: 5px;
        column-gap: 5px;
    }
    /*一个内容层*/
    .item{
      -moz-page-break-inside: avoid;
      -webkit-column-break-inside: avoid;
      break-inside: avoid;
      margin-bottom: 0.05rem;
      position: relative;
      cursor: pointer;
      overflow: hidden;
    }
    .item .al_img{
        width: 100%;
        display: block;
    }
    .item .item_title{
        position: absolute;
        left: 7%;
        bottom: 7%;
        color: #fff;
        line-height: 36px;
    }
    .item .item_title h1{
        font-size: 32px;
        font-weight: bold;
    }
    .item .item_title h2{
        font-size: 18px;
    }
    .item .item_img{
        position: absolute;
        top: 50%;
        left: 50%;
        transform:translate(-50%,-50%);
    }
    .item .item_img img{
        display: block;
        width: 100%;
        margin: 0 auto;
    }
    .item:hover .item_img{
        display: none;
    }
    .item .item_cover{
        width: 100%;
        /* height: 100%; */
        background-color: rgba(232,76,0,0.7);
        position: absolute;
        bottom: -100%;
        left: 0;
        transition: all 1s;
    }
    .item .item_cover .item_main{
        width: 72%;
        margin: 0 auto;
        padding-top: 8%;
        padding-bottom: 17%;
    }
    .item .item_cover .item_main img{
        display: block;
        margin: 0 auto;
        width: 40%;
    }
    .item .item_cover .item_main .item_line{
        width: 58px;
        height: 5px;
        background-color: #fff;
        margin: 25px auto 30px;
        border-radius: 5px;
    }
    .item .item_cover .item_main{
        color: #fff;
        line-height: 30px;
        text-align: center;
    }
    .item .item_cover .item_main h1{
        font-size: 32px;
        font-weight: bold;
        display: none;
    }
    .item .item_cover .item_main h2{
        font-size: 18px;
        line-height: 40px;
        display: none;
    }
    .item .item_cover .item_main p{
        font-size: 18px;
        margin-top: 5%;
    }
    .item .item_cover .item_main span{
        font-size: 22px;
        color: #fff;
        font-weight: bold;
        padding: 6px 6px;
        display: block;
        margin: 0 auto;
        border-bottom: 2px solid #fff;
        position: absolute;
        bottom: 5%;
        left: 50%;
        transform: translate(-50%,0%);
    }
    .item .item_cover .item_main span img{
        display: inline-block;
        margin-left: 10px;
        width: 23%;
    }

    .item:hover .item_title{
        display: none;
    }
    .item:hover .item_cover{
        /* top: 0; */
        bottom: 0;
        left: 0;
        transition: all 1s;
    }

    .kehu_img{
        width: 100%;
    }
    .kehu_img img{
        display: block;
        width: 100%;
    }




@media only screen and (max-width: 1600px) {
.item .item_title h1 {
    font-size: 28px;
    font-weight: bold;
}
.item .item_title h2 {
    font-size: 16px;
}
.item .item_cover .item_main {
    width: 80%;
    margin: 0 auto;
    padding-top: 5%;
}
.item .item_cover .item_main img {
    display: block;
    margin: 0 auto;
    width: 30%;
}
.item .item_cover .item_main .item_line {
    width: 50px;
    height: 3px;
    background-color: #fff;
    margin: 15px auto 15px;
    border-radius: 5px;
}
.item .item_cover .item_main span {
    font-size: 18px;
    color: #fff;
    font-weight: bold;
    padding: 5px 5px;
    display: block;
    margin: 0 auto;
    border-bottom: 2px solid #fff;
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translate(-50%,0%);
}
.item .item_cover .item_main span img {
    display: inline-block;
    margin-left: 10px;
    width: 20%;
}
.waterfall .item:nth-child(4) .item_logo{
    width: 20% !important;
}
}

@media only screen and (max-width: 1280px) {
.item .item_title h1 {
    font-size: 20px;
    font-weight: bold;
}
.item .item_title h2 {
    font-size: 12px;
}
.item .item_title {
    position: absolute;
    left: 5%;
    bottom: 3%;
    color: #fff;
    line-height: 24px;
}
.item .item_cover .item_main {
    width: 90%;
    margin: 0 auto;
    padding-top: 5%;
}
.item .item_cover .item_main {
    color: #fff;
    line-height: 24px;
    text-align: center;
}
.item .item_cover .item_main p {
    font-size: 16px;
    margin-top: 5%;
}
.item .item_cover .item_main span img {
    display: inline-block;
    margin-left: 8px;
    width: 18%;
}
.item .item_cover .item_main span {
    font-size: 16px;
    color: #fff;
    font-weight: bold;
    padding: 3px 3px;
}
.waterfall .item:nth-child(5) .item_logo{
    width: 20% !important;
}
}

@media only screen and (max-width: 1024px) {
.item .item_cover .item_main p {
    font-size: 14px;
    margin-top: 0%;
    line-height: 20px;
}
.item .item_cover .item_main .item_line {
    width: 40px;
    height: 2px;
    background-color: #fff;
    margin: 10px auto 10px;
    border-radius: 5px;
}
.item .item_cover .item_main .item_line {
    width: 40px;
    height: 2px;
    background-color: #fff;
    margin: 10px auto 10px;
    border-radius: 5px;
    border-bottom: 1px solid #fff;
    bottom: 3%;
}
.item .item_cover .item_main {
    width: 90%;
    margin: 0 auto;
    padding-top: 3%;
}
.item .item_cover .item_main span {
    font-size: 14px;
    color: #fff;
    font-weight: bold;
    padding: 1px 1px;
    border-bottom: 1px solid #fff;
}
.item .item_cover .item_main span img {
    display: inline-block;
    margin-left: 5px;
    width: 18%;
}
.intro__content__text h2 {
    font-size: 50px;
    line-height: 120px;
    font-weight: bold;
}
.intro__content__text h3 {
    font-size: 24px;
}
}

.phone_banner{
    width: 100%;
    height: auto;
    overflow: hidden;
    display: none;
}
.phone_banner img{
    display: block;
    width: 100%;
}

/*手机+pad*/
@media only screen and (max-width:850px) {
.waterfall{
    display: none;
}
.al_phone{
    display: block;
}
.screen{
    display: none;
}
.phone_banner{
    display: block;
}
}

@media only screen and (max-width:850px) {
.intro__content__text h2 {
    font-size: 40px;
    line-height: 90px;
    font-weight: bold;
}
.intro__content__text h3 {
    font-size: 20px;
}   
}

@media only screen and (max-width: 414px) {
.al_phone ul li .al_phone_text h1 {
    font-size: 16px;
    font-weight: bold;
}
.al_phone ul li .al_phone_text{
    line-height: 18px;
}
}