/* banner */
.banner{width: 100%;margin: auto;}
.banner .swiper-wrapper .swiper-slide>img{width: 100%;height: 100%;}
.banner .swiper-button-next, .swiper-button-prev{background-color: #657e8ca8;background-size: 14px 44px;width: 30px;height: 55px;}
.banner .swiper-button-prev{background-color: #657e8ca8;background-size: 14px 44px;width: 30px;height: 55px;border-radius: 0;top: 50%;}
.banner .swiper-button-prev, .swiper-container-rtl .swiper-button-next{left: 12vw;}
.banner .swiper-button-next, .swiper-button-prev{right: 12vw;}
.banner .swiper-pagination-bullet{width: 13px;height: 13px;}


.title_ch{font-size: 32px;color: #333;font-weight: bold;text-align: center;}
.title_eg{font-size: 15px;color: #999;text-align: center;margin-top: 10px;}
.title_line{width: 44px;height: 6px;background-color: #0268b0;margin: auto;margin-top: 20px;border-radius: 5px;}
/* 关于我们 */
.about{margin: 45px 0;background-image: url('../img/about_1.png');background-repeat: no-repeat;}
.about .cont{width: 1200px;max-width: 100%;margin: auto;display: flex;justify-content: space-between;align-items: center;margin-top: 50px;}
.about .cont .left{position: relative;width: 560px;height: 326px;}
.about .cont .left img:first-child{position: absolute;left: 0;top: 0;width: 98%;height: 97%;z-index: 2;}
.about .cont .left img:last-child{position: absolute;left: 0;top: 0;width: 100%;height: 100%;z-index: 1;}
.about .cont .right{width: 560px;font-size: 16px;color: #666;line-height: 35px;}
.about .cont .right div{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;}
.about .cont .right .more{line-height: 16px;color: #0268b0;margin-left: auto;margin-top: 40px;display: block;width: 115px;background-image: url('../img/about_4.png');background-repeat: no-repeat;background-position-y: bottom;background-size: 100% ;}

/* 公司优势 */
.advantage{margin: 50px 0;}
.advantage .cont{width: 1200px;max-width: 100%;margin: auto;display: flex;justify-content: space-around;align-items: center;text-align: center;margin-top: 40px;}
.advantage .cont .list{width: 300px;padding: 30px;transition:all .5s;cursor:pointer;}
.advantage .cont .list:hover{box-shadow:0 0 2px 2px #ccc;    transform: translateY(-15px);}
.advantage .cont .list img{width: 200px;height: 200px;border-radius: 50%;}
.advantage .cont .list img:nth-child(2){display:none;}
.advantage .cont .list .title{font-size: 24px;color: #0268b0;margin-top: 20px;}
.advantage .cont .list .content{margin-top: 20px;font-size: 15px;color: #666666;line-height: 30px;}

/* 工程案例 */
.case{width: 100%;padding: 50px 0;background-image: url('../img/case_1.png');background-repeat: no-repeat;position: relative;background-size: 100% 100%;}
.case .cont{width: 1200px;max-width: 100%;margin: auto;margin-top: 50px;padding: 5px;transition: all .5s;}
.case .cont .list{padding: 28px;background: #fff;width: 380px;box-shadow: 0 0 5px 3px #ececec;}
.case .cont .list img{width: 100%;height: 15vw;}
.case .cont .list .title{ overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size: 20px;color: #282828;margin: 20px 0;font-weight: bold;transition: all .5s;}
.case .cont .list .content{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;color: #282828;font-size: 14px;line-height: 28px;transition: all .5s;}
.case .cont .list .more{width: 120px;display: block;padding: 4px 0;text-align: center;font-size: 14px;color: #fff;background: #0268b0;margin-top: 15px;transition: all .5s;}
.case .cont>.more{width: 155px;padding: 5px 0;display: block;margin: auto;border-radius: 20px;text-align: center;margin-top: 45px;color: #3486c0;border: #3486c0 solid 1px;font-size: 18px;}
.case .swiper-button-next, .swiper-button-prev{border-radius: 50%;width: 40px;height: 40px;background-size:12px 44px;background-color: #444444;transition: all .5s;top: 59%;}
.case .swiper-button-prev{top: 59%;width: 40px;height: 40px;background-size:12px 44px;}
.case .swiper-button-prev:hover{background-color: #0268b0;}
.case .swiper-button-next:hover{background-color: #0268b0;}
.case .cont .list:hover{background: #0268b0;}
.case .cont .list:hover .title{color: #fff;}
.case .cont .list:hover .content{color: #fff;}
.case .cont .list:hover .more{color: #0268b0;background: #fff;}
.case .swiper-button-next, .swiper-button-prev{right: 8vw;}
.case .swiper-button-prev{left: 8vw;}


/* 新闻动态 */
.news{padding: 50px 0;position: relative;}
.news .s_title{display: flex;justify-content: center;align-items: center;margin-top: 40px;}
.news .s_title>a{border: #0268b0 solid 1px;padding: 5px 15px;cursor: pointer;font-size: 18px;color: #0268b0;background: #fff;margin-left: 40px;transition: all .5s;}
.news .s_title>a:first-child{margin-left: 0;}
.news .s_title>a:hover{color: #fff;background: #0268b0;}
.news .cont{width: 1200px;max-width: 100%;margin: auto;}
.news .cont .list{display: flex;margin-top: 10px;flex-wrap: wrap;}
.news .cont .list .item{padding: 30px 40px;display: flex;color: #999;align-items: center;width: 49%;border: #d5d5d5 solid 1px;margin-top: 40px;margin-left: 2%;transition: all .5s;}
.news .cont .list .item:nth-child(2n+1){margin-left: 0;}
.news .cont .list .item .left{width: 70px;transition: all .5s;}
.news .cont .list .item .left .month{font-size: 60px;text-align: center;line-height:60px;}
.news .cont .list .item .left .year{text-align: center;}
.news .cont .list .item .right{margin-left: 25px;width: 395px;}
.news .cont .list .item .right .title{font-size: 21px;color: #666;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition: all .5s;}
.news .cont .list .item .right .content{margin-top: 15px;font-size: 14px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;transition: all .5s;}
.news .swiper-button-next, .swiper-button-prev{right: 8vw;background-color: #444;border-radius: 50%;width: 40px;height: 40px;background-size: 12px 44px;top: 28vw;transition: all .5s;}
.news .swiper-button-prev{left: 8vw;width: 40px;height: 40px;background-size: 12px 44px;top:28vw;}
.news .swiper-button-prev:hover{background-color: #0268b0;}
.news .swiper-button-next:hover{background-color: #0268b0;}
.news>.more{width: 155px;padding: 5px 0;display: block;margin: auto;border-radius: 20px;text-align: center;margin-top: 45px;color: #3486c0;border: #3486c0 solid 1px;font-size: 18px;}
.news .cont .list .item:hover{background-color: #0268b0;}
.news .cont .list .item:hover .right .title{color: #fff;}
.news .cont .list .item:hover .left{color: #b9ceed;}
.news .cont .list .item:hover .left .month{color: #c1d4f1;}
.news .cont .list .item:hover .right .content{color: #b9ceed;}


@media screen and (max-width:1580px) {
  .case .swiper-button-next, .swiper-button-prev{right: 3vw;}
  .case .swiper-button-prev{left: 3vw;}
  .news .swiper-button-next, .swiper-button-prev{right: 3vw;}
  .news .swiper-button-prev{left: 3vw;}
}

@media screen and (max-width:1400px) {
  .case .swiper-button-next, .swiper-button-prev{right: 1vw;}
  .case .swiper-button-prev{left: 1vw;}
  .news .swiper-button-next, .swiper-button-prev{right: 1vw;top: 475px;}
  .news .swiper-button-prev{left: 1vw;top: 475px;}
  
}
@media screen and (max-width:1200px) {
  .about .cont{padding: 0 20px;}
  .advantage .cont{padding:  0 20px;}
  .case .cont{width: 85%;}
  .news .cont{width: 85%;}
  .news .cont .list .item .left{width: 20%;}
  .news .cont .list .item .right{width: 80%;}
  .banner .swiper-button-next, .swiper-button-prev{width: 30px;height: 40px;background-size: 14px 44px;}
  .banner .swiper-button-prev{width: 30px;height: 40px;background-size: 14px 44px;}
  .banner .swiper-pagination-bullet{width: 8px;height: 8px;}
  .about .cont .left{width: 49%;height: 28vw;}
  .about .cont .right{width: 49%;}
  .case .swiper-button-next, .swiper-button-prev{width: 40px;height: 40px;}
  .case .swiper-button-prev{width: 40px;height: 40px;}
}

@media screen and (max-width:768px) {
  .about .cont{flex-wrap: wrap;justify-content: center;}
  .about .cont .left{width: 80%;height: 50vw;}
  .about .cont .right{width: 100%;margin-top: 20px;}
  /* .about .cont .right .more{margin: auto;} */
  .advantage .cont .list{width: 33%;padding: 0 26px;}
  .advantage .cont .list img{width: 100%;height: 24vw;}
  .case .cont .list{padding: 20px;}
  .news .cont .list .item{width: 100%;margin-left: 0;}
}

@media screen and (max-width:540px) {
  .about{margin: 20px 0;}
  .title_ch{font-size: 16px;}
  .title_eg{margin-top: 5px;font-size: 13px;}
  .title_line{margin-top: 10px;width: 22px;height: 3px;}
  .about .cont{padding: 0 10px;margin-top: 25px;}
  .about .cont .right .more{margin-top: 10px;}
  .advantage{margin: 25px 0;}
  .about .cont .right div{font-size: 12px;line-height: 24px;}
  .about .cont .right .more{font-size: 14px;width: 100px;}
  .advantage .cont .list{padding: 0 13px;}
  .advantage .cont .list img{height: 26vw;}
  .advantage .cont .list .title{font-size: 16px;margin-top: 10px;}
  .advantage .cont .list .content{margin-top: 10px;font-size: 12px;line-height: 20px;}
  .case{padding: 25px 0;background-repeat: repeat;background-size: 100%;}
  .case .cont{margin-top: 25px;}
  .case .swiper-button-next, .swiper-button-prev{width: 30px;height: 30px;    background-size: 10px 44px;}
  .case .swiper-button-prev{width: 30px;height: 30px;background-size: 10px 44px;}
  .case .cont .list img{height: 50vw;}
  .case .cont .list .title{font-size: 14px;margin: 10px 0;}
  .case .cont .list .content{font-size: 12px;line-height: 20px;}
  .case .cont .list .more{font-size: 13px;width: 90px;padding: 4px 0;}
  .case .cont>.more{margin-top: 20px;padding: 5px 0;font-size: 14px;width: 120px;}
  .news{padding: 25px 0;}
  .news .s_title{margin-top: 20px;}
  .news .s_title>a{font-size: 13px;padding: 5px 7px;margin-left: 10px;}
  .news .swiper-button-next, .swiper-button-prev{width: 30px;height: 30px;    background-size: 10px 44px;top: 50%;}
  .news .swiper-button-prev{top: 50%;width: 30px;height: 30px;    background-size: 10px 44px;top: 50%;}
  .news .cont .list .item{margin-top: 20px;padding: 15px 20px;}
  .news .cont .list .item .left .month{font-size: 30px;}
  .news .cont .list .item .left .year{font-size: 12px;}
  .news .cont .list .item .right{width: 75%;margin-left: 5%;}
  .news .cont .list .item .right .title{font-size: 16px;}
  .news .cont .list .item .right .content{font-size: 12px;margin-top: 10px;}
  .news>.more{margin-top: 20px;padding: 5px 0;font-size: 14px;width: 120px;}
}
@media screen and (max-width:414px) {
  .banner .swiper-button-next, .swiper-button-prev{width: 30px;height: 20px;}
  .banner .swiper-button-next, .swiper-button-prev{width: 10px;height: 20px;    background-size: 7px 44px;}
  .banner .swiper-button-prev{width: 10px;height: 20px;background-size: 7px 44px;}
  .advantage .cont{flex-wrap: wrap;}
  .advantage .cont .list{width: 100%;margin-top: 30px;}
  .advantage .cont .list:first-child{margin-top: 0;}
  .advantage .cont .list img{height: 42vw;width: 50%;}
  .case .swiper-button-prev{width: 20px;height: 20px;background-size: 7px 44px;}
  .case .swiper-button-next, .swiper-button-prev{width: 20px;height: 20px;background-size: 7px 44px;}
  .news .swiper-button-next, .swiper-button-prev{width: 20px;height: 20px;background-size: 7px 44px;}
  .news .swiper-button-prev{width: 20px;height: 20px;background-size: 7px 44px;}
}
@media screen and (max-width:320px) {
  .news .cont .list .item{padding: 7px 10px;}
  .news .cont .list .item .right .content{margin-top: 5px;}
}