body {
    width: 100%;
    height: 100%;
    background: url(../img/homeBGI.png) no-repeat;
    background-position: 0 0;
    background-size: 100% 100%;
}

a {
    color: #FFFFFF;
}

.logo_box {
    width: 179px;
    height: 100%;
}

/* 回到顶部 */
.anchor {
    width: 50px;
    height: 50px;
    position: fixed;
    right: 10rem;
    bottom: 50rem;
    color: #FFFFFF;
    cursor: pointer;
}


.anchor>img {
    width: 100%;
    height: 100%;
}

.ul_box {
    width: 700px;
    height: 100%;
    display: flex;
    align-items: center;
    margin-left: 29px;

}

.ul_box>li {
    height: 100%;
    text-align: center;
    line-height: 38px;
    color: #FFFFFF;
    font-size: 20px;
    margin-left: 29px;
}

.ul_box>li:hover, a:hover {
    cursor: pointer;
    color: aqua;
}

.ul_box>li:nth-child(1) {
    margin-left: 0px;
}

.ul_login {
    width: 178px;
    height: 100%;
    margin-left: 135px;
    display: flex;
    justify-content: space-between;
}

.ul_login>li {
    line-height: 40px;
    color: #FFFFFF;
    font-size: 20px;
}

/* establish */
.establish {
    margin: 85px auto 0 auto;
    color: #FFFFFF;
    text-align: center;
    font-size: 48px;
}

.four_subbox {
    width: 185px;
    height: 185px;
    padding: 10px;
    box-sizing: border-box;
    margin: 0 auto;
}

.four_subbox img {
    width: 100%;
    height: 100%;
}

.four_box {
    width: 1017px;
    height: 231px;
    margin: 57px auto 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.four_box>li>img {
    width: 183px;
    height: 169px;
    margin: 0 auto;
}

.four_box>li {
    width: 215px;
    height: 215px;
    font-size: 24px;
    color: #FFFFFF;
    text-align: center;
}

.two_sp {
    width: 648px;
    height: 52px;
    color: #FFFFFF;
    margin: 100px auto 0 auto;
    font-size: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.two_sp>span:hover {
    cursor: pointer;
    color: aqua;
}

#download {
    text-decoration: none;
    font-size: 36px;
    background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
    background-size: 400%;
    width: 240px;
    height: 100px;
    color: #fff;
    line-height: 100px;
    text-align: center;
    text-transform: uppercase;
    border-radius: 50px;
    z-index: 1;
    animation: sun 8s infinite;
}

#download::before {
    position: absolute;
    left: -5px;
    right: -5px;
    top: -5px;
    bottom: -5px;
    background: linear-gradient(90deg, #03a9f4, #f441a5, #ffeb3b, #03a9f4);
    background-size: 400%;
    border-radius: 50px;
    filter: blur(20px);
    z-index: -1;
}

#download:hover::before {
    animation: sun 8s infinite;
}

#download:hover {
    animation: sun 8s infinite;
}

@keyframes sun {
    100% {
        background-position: -400% 0;
    }
}

/* 轮播图 */
.widths {
    width: 1224px;
}

.curBox {
    width: 100%;
    height: 50px;
    position: absolute;
    left: 0;
    top: 50%;
    z-index: 999;
    display: flex;
    justify-content: space-between;
}

.curBox_left {
    width: 50px;
    height: 50px;
    /* background-color: rgb(13, 128, 252); */
    cursor: pointer;
    font-size: 40px;
    margin-left: 20px;
    color: white;
    text-align: center;
}

.curBox_left>img,
.curBox_right>img {
    width: 100%;
    height: 100%;
}

.curBox_right {
    width: 50px;
    height: 50px;
    text-align: center;
    cursor: pointer;
    font-size: 40px;
    margin-right: 20px;
    color: white;
}

.circularBox {
    position: absolute;
    width: 80px;
    height: 20px;
    bottom: 20px;
    display: flex;
    justify-content: space-between;
    left: calc(50% - 40px);
    z-index: 990;
}

.circularBox>li {
    width: 20px;
    height: 100%;
    border-radius: 50%;
    background-color: rgb(158, 158, 158);
    cursor: pointer;
}

.Carousel_frame {
    width: 100%;
    height: 666px;
    position: relative;
    overflow: hidden;
    /* margin-top: 10px; */
}

.active {
    background-color: #ffffff !important;
}

.CarouselBox {
    position: absolute;
    left: 0;
    padding: 0;
    width: calc(100% * 3) !important;
    height: 666px !important;
    /* display: flex; */
    float: left;
}

.CarouselBox_li {
    /* width: calc( 100% / 3); */
    width: 33.3333333%;
    height: 100%;
}

.CarouselBox_li>img {
    width: 100%;
    height: 100%;
}

.CarouselBox_li_word1 {
    position: absolute;
    text-align: center;
    top: calc(50% - 55.5px);
    left: calc(50% - 207px);
    color: #FFFFFF;
    font-size: 44px;
}

.CarouselBox_li_word2 {
    position: absolute;
    text-align: center;
    top: calc(50% - 55.5px);
    left: calc(50% - 235px);
    color: #FFFFFF;
    font-size: 44px;
}

.CarouselBox_li_word3 {
    position: absolute;
    text-align: center;
    top: calc(50% - 55.5px);
    left: calc(50% - 535px);
    color: #FFFFFF;
    font-size: 44px;
}

.success_p {
    font-size: 36px;
    font-weight: bold;
    color: white;
    text-align: center;
    margin: 100px auto 130px auto;
}

.indoor_box {
    height: 379px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 51px;
    /* border: 1px solid red; */
}

.indoor_frame {
    width: 594px;
    height: 100%;
    background-color: #D8D8D8;
}

.title_words {
    margin: 32px 0 auto;
    text-align: center;
    font-size: 30px;
    color: #FFFFFF;
}

.title_words2 {
    margin: 32px 0 auto;
    text-align: center;
    font-size: 24px;
    color: #FFFFFF;
}

/* 方案介绍 */
.scheme {
    font-size: 36px;
    color: #FFFFFF;
    margin: 63px auto 0 auto;
    text-align: center;
}

.scheme_box {
    height: 520px;
    display: flex;
    justify-content: space-between;
    margin-top: 14px;
}

.scheme_box>li {
    width: 390px;
    padding: 19px 17px;
    box-sizing: border-box;
    background: #FFFFFF;
    border-radius: 20px;
}

.scheme_box_div {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    border: 1px solid #4EA7E2;
}

.scheme_box_div_img {
    width: 222px;
    height: 222px;
    margin: 20px auto 22px auto;
}

.text_word {
    font-size: 24px;
    color: #3D3D3D;
    text-align: center;
}

.btm_word {
    font-size: 18px;
    color: #999999;
    text-align: center;
}

.details {
    width: 134px;
    height: 48px;
    text-align: center;
    line-height: 48px;
    margin: 53px auto 0 auto;
    font-size: 14px;
    color: #0095C7;
    background: url(../img/hexagon.png) no-repeat 100%;
}

.details:hover {
    cursor: pointer;
    color: #92caf0;
}

/* 硬件产品 */
.hardware {
    font-size: 36px;
    color: #FFFFFF;
    margin: 115px auto 0 auto;
    text-align: center;
}

.hardware_box {
    /* border: 1px solid red; */
    display: flex;
    justify-content: space-between;
    margin-top: 36px;
}

.hardware_box>li {
    width: 200px;
    height: 275px;
    /* background-color: aqua; */
    cursor: pointer;
}

.hardware_box>li:hover .opbox,
.hardware_box2>li:hover .opbox {
    transform: scale(1.3);
}

.hardware_box>li>p {
    font-size: 30px;
    color: #FFFFFF;
    text-align: center;
    margin-top: 32px;
}

.hardware_box2 {
    width: 828px;
    height: 275px;
    /* border: 1px solid yellow; */
    margin: 22px auto 0 auto;
    display: flex;
    justify-content: space-between;
    cursor: pointer;
}

.hardware_box2>li {
    width: 200px;
    height: 100%;
    /* border: 1px solid yellow; */
}

.hardware_box2>li>p {
    font-size: 30px;
    color: #FFFFFF;
    text-align: center;
    margin-top: 32px;
}

/* 树莓派 */
.local_title {
    font-size: 36px;
    color: #FFFFFF;
    margin: 100px auto 0 auto;
    text-align: center;
}

.local_Server {
    color: white;
    margin: 15px auto 0 auto;
    display: flex;
    font-size: 28px;
    justify-content: space-around;
    text-align: center;
}

.local_Server .tips {
    width: 30%;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.local_Server .tips .detail {
    text-align: center;
    font-size: 16px;
    color: #0095C7;
    margin-top: 10px;
}

.local_Server .B4 {
    width: 100%;
    cursor: pointer;
}

.local_tips {
    font-size: 28px;
    color: #FFFFFF;
    margin: 0 auto;
    text-align: center;
}

/* 开放易拓展 */
.openness {
    font-size: 36px;
    color: #FFFFFF;
    margin: 149px auto 0 auto;
    text-align: center;
}

.six_box {
    margin: 15px auto 0 auto;
    /* border: 1px solid green; */
    display: flex;
    flex-wrap: wrap;
}

.introduce {
    width: 962px;
    height: 260px;
    /* border: 1px solid red; */
    margin-top: 49px;
    position: relative;
    /* animation: anim 2s ease-in-out forwards; */
}

/* @keyframes anim {
    0%{

    }
} */
.six_box>.introduce:nth-child(1) {
    margin-top: 0;
}

.six_box>.introduce:nth-child(odd) {
    margin-left: 261px;
    background: url(../img/rectangleR.png) no-repeat;
    background-size: 701px 216px;
    background-position: 0 46px;
    position: relative;
}

.six_box>.introduce:nth-child(odd)>img {
    position: absolute;
    right: 0;
    bottom: 0;
}

.six_box>.introduce:nth-child(even) {
    background: url(../img/rectangleL.png) no-repeat;
    background-size: 701px 216px;
    background-position: 260px 46px;
    position: relative;
}

.six_box>.introduce:nth-child(even)>img {
    position: absolute;
    left: 0;
    bottom: 0;
}

.inner_sp {
    width: 476px;
    height: 164px;
    position: absolute;
    top: 82px;
    left: 90px;
    font-size: 28px;
    color: #FFFFFF;
}

.inner_sp_t {
    width: 476px;
    height: 164px;
    position: absolute;
    left: 429px;
    top: 82px;
    font-size: 28px;
    color: #FFFFFF;
}

.characters {
    width: 144px;
    height: 70px;
    font-size: 48px;
    color: #FFFFFF;
    position: absolute;
    right: 81px;
    top: 44px;
    z-index: 900;
}

.characters_t {
    width: 144px;
    height: 70px;
    font-size: 48px;
    color: #FFFFFF;
    position: absolute;
    left: 80px;
    top: 44px;
    z-index: 900;
}

.characters_odd {
    width: 129px;
    height: 129px;
    position: absolute;
    right: 53px;
    top: 192px;
    z-index: 900;
}

.characters_even {
    width: 129px;
    height: 129px;
    position: absolute;
    left: 104px;
    top: 192px;
    z-index: 900;
}

.characters_odd>img, .characters_even>img {
    width: 100%;
    height: 100%;
}

/* 我们的顾客 */
.customer {
    font-size: 36px;
    color: #FFFFFF;
    margin: 131px auto 0 auto;
    text-align: center;
}

.customer_eight {
    margin: 50px auto 0 auto;
    /* border: 1px solid blue; */
    display: flex;
    justify-content: space-between;
}

.customer_eight>li {
    width: 288px;
    height: 112px;
    background-color: white;
    margin-left: 24px;
    text-align: center;
    line-height: 112px;
}

.customer_eight>li:nth-child(1) {
    margin-left: 0;
}

.customer_eight>img {
    margin: 0 auto;
}

.PlatformFeatures {
    font-size: 36px;
    font-weight: bold;
    color: #ffffff;
    margin: 63px auto 24px auto;
    text-align: center;
}

.ipt_box {
    display: flex;
    justify-content: space-between;
    margin-top: 38px;
}

.ipt {
    width: 595px;
    height: 102px;
    text-indent: 40px;
    font-size: 30px;
    text-decoration: none;
    border: 1px solid #000000;
}

.textareas {
    width: 100%;
    height: 306px;
    margin-top: 38px;
    padding: 30px 40px;
    box-sizing: border-box;
    font-size: 30px;
    resize: vertical;
}

input::-webkit-input-placeholder {
    color: #D8D8D8;
}

input::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #D8D8D8;
}

input:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #D8D8D8;
}

input:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: #D8D8D8;
}

textarea::-webkit-input-placeholder {
    color: #D8D8D8;
}

textarea::-moz-placeholder {
    /* Mozilla Firefox 19+ */
    color: #D8D8D8;
}

textarea:-moz-placeholder {
    /* Mozilla Firefox 4 to 18 */
    color: #D8D8D8;
}

textarea:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: #D8D8D8;
}

.submit {
    width: 595px;
    height: 102px;
    border-radius: 8px;
    margin: 34px auto 0 auto;
    background: linear-gradient(180deg, #70EEFF 0%, #0018F9 100%);
    font-size: 36px;
    text-align: center;
    line-height: 102px;
    color: #FFFFFF;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
}

.submit:active {
    transform: translateY(15px);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

/* 动画区域 */
/* .odd{
    animation: odd 2s ease;
}
.even{
    animation: even 2s ease;
}
@keyframes odd {
    0%{
        right: -100vw;
        top: -500px;
    }
    100%{
        top: 192px;
        right: 53px;
    }
}
@keyframes even {
    0%{
        left: -200vw;
        top: -500px;
    }
    100%{
        top: 192px;
        left: 104px;
    }
} */
.four_box>li:hover .four_subbox {
    transform: rotateY(360deg);
}

.four_subbox {
    transition: transform 0.8s linear;
    transform: rotateY(0deg);
}

/* @keyframes an {
    0%{
        transform:translate(0deg);
    }
    100%{
        transform: translateZ(360deg);
    }
}
@keyframes ans {
    0%{
        transform: translateZ(0deg);
    }
    100%{
        transform: translateZ(-360deg);
    }
} */

/* 悬浮窗样式 */
#videoModal {
    display: none;
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.95);
    box-shadow: 0 0 10px #333;
    padding: 20px;
    z-index: 9999;
    width: 80vw;
    max-width: 1000px;
    min-width: 320px;
    max-height: 90vh;
    min-height: 200px;
    box-sizing: border-box;
  }
  #videoModal video {
    width: 100%;
    height: 70vh;
    display: block;
    background: #000;
  }
  .close-btn {
    position: absolute;
    right: 0px;
    top: 0px;
    font-size: 22px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .overlay {
    display: none;
    position: fixed;
    left:0;top:0;width:100vw;height:100vh;
    background:rgba(0,0,0,0.5);
    z-index:9998;
  }
  #go_mk3{
    cursor: pointer;
  }