* {
    margin: 0;
    padding: 0;
}

html {
    width: 100%;
    height: 100%;
}

body {
    width: 100%;
    height: auto;
    overflow: auto;
}

/* 头部导航 */
.header_bg{
    width: 100%;
    height: 29vw;
}
.header_bg>img{
    width: 100%;
    height: 100%;
}
nav {
    z-index: 99;
    position: fixed;
    top: 0;
    width: 100%;
    height: 8vw;
    display: flex;
    align-items: center;
}

.bg {
    background-color: #000;
}

.logo {
    width: 15vw;
    height: 5vw;
    margin-left: 18vw;
}

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

.text {
    width: 48vw;
    height: 8vw;
    display: flex;
    margin-left: 10vw;
}

.text>div {
    width: 8vw;
    height: 100%;
    text-align: center;
    line-height: 8vw;
    font-size: 1vw;
    color: #fff;
    white-space: nowrap;
}
.text>div>a{
    color: #fff;
    text-decoration: none !important;
}

.text>div:hover {
    cursor: pointer;
    background-color: rgba(35, 31, 31, 0.2);
}

.about {
    width: 8vw !important;
    height: 18vw !important;
    background-color: #000;
    display: none;
}

.ab:hover>.about {
    display: block;
}

.about a {
    display: block;
    text-decoration: none !important;
    width: 100%;
    height: 3.6vw;
    font-size: 1vw;
    color: #fff !important;
    line-height: 3.6vw;
}

.about a:hover {
    background-color: rgb(202, 19, 19);
}

.industry {
    width: 8vw;
    height: 10.8vw !important;
    background-color: #000;
    display: none;
}

.in:hover>.industry {
    display: block;
}

.industry a {
    display: block;
    text-decoration: none !important;
    height: 3.6vw;
    width: 100%;
    font-size: 1vw;
    color: #fff !important;
    line-height: 3.6vw;
}

.industry a:hover {
    background-color: rgb(202, 19, 19);
}

/* 文本内容 */
.text_content{
    width: 82vw;
    height: auto;
    margin: 0 auto;
    margin-top: 8vw;
}
.real_estate_title{
    width: auto;
    height: auto;
    text-align: center;
    font-size: 2vw;
    font-weight: 100;
}
.real_estate_line{
    width: 5vw;
    height: .2vw;
    background-color: rgb(203, 40, 40);
    margin: 0 auto;
    margin-top: 1vw;
}
.real_estate_english{
    width: auto;
    height: auto;
    text-align: center;
    color: rgb(167, 165, 165);
    margin-top: 1vw;
}
.about_real_estate{
    display: flex;
    line-height: 2.4vw;
    margin-top: 6vw;
}
.about_real_estate_line{
    width: 0.6vw;
    height: 2.6vw;
    background-color: rgb(203, 40, 40);
}
.about_real_estate_title{
    font-size: 1.6vw;
    color: rgb(203, 40, 40);
    margin-left: 2vw;
}
.about_real_estate_english{
    margin-top: 20px;
}
.engineering_construction_text{
    margin-top: 4vw;
}
.engineering_construction_text_two{
    margin-top: 4vw;
}
.engineering_construction_text_foure{
    margin-top: 2vw;
}
.engineering_construction_text_seven{
    margin-top: 2vw;
}




/* 轮播 */
.swiper{
    width: 100%;
    height: 26vw;
    margin-top: 4vw;
}

.swiper-container {
    width: 100%;
    height: 100%;
  }
  .swiper-slide {
    text-align: center;
    font-size: 18px;
    background: #fff;
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
    transition: 300ms;
    transform: scale(0.7);
  }
  .swiper-slide-active,.swiper-slide-duplicate-active{
    transform: scale(1);
  }
.swiper-pagination-bullet{
    display: block;
    width: 2vw !important;
    height: .1vw !important;
}
.swiper-slide>img{
    width: 100%;
    height: 100%;
    z-index: 99;
}



/* 底部 */
.di_bu{
    width: 100%;
    height: auto;
    background-color: #2d3032;
    color: #fff;
    margin-top: 8vw;
}
.di_bu_top{
    width: 80vw;
    height: 17vw;
    margin: 0 auto;
    display: flex;
}
.di_bu_top>div{
    font-size: 1vw;
    padding-top: 2vw;
}
.di_bu_top_left{
    flex: 0.3;
}
.di_bu_top_center{
    flex: 0.3;
}
.di_bu_top_right{
    flex: 0.4;
}
.di_bu_top>div>h3{
    font-size: 1.6vw;
    padding-bottom: 1vw;
}
.di_bu_top>div>a{
    display: block;
    text-decoration: none;
    color: #fff;
    margin-top: 0.5vw;
}
.di_bu_top>div>ul>li{
    list-style: none;
    margin-top: 0.5vw;
}
.di_bu_bottom{
    width: 100%;
    height: auto;
    background-color: #000;
    text-align: center;
    color: #fff;
    padding-top: 1vw;
    padding-bottom: 1vw;
    font-size: 1vw;
}