.banner-box{position:relative;margin:0 auto;background:url(../images/t-bg.png) no-repeat top center;height:702px;z-index:5;overflow:hidden}.banner-box .main-header{height:80px;background-color:#fff;position:absolute;left:0;top:0;width:100%;display:none}.banner-box .main-con{position:relative;padding-top:245px;margin:0 auto;text-align:center;z-index:1}.banner-box .main-con .main-title{position:relative;margin:0 auto;width:918px;height:307px;background:url(../images/banner.png) no-repeat center center;background-size:100% 100%}.part1{position:relative;margin:0 auto;background:url(../images/t_bg1.png) no-repeat top center;height:1097px;z-index:4;overflow:hidden;margin-top:-400px}.part1 .barrager-up{height:231px;margin-top:400px;position:relative}.part1 .barrager-down{height:203px;position:relative}.part1 .barrage{position:absolute}.part1 .barrage .barrage_box{background-image:linear-gradient(#a4691d,#a4691d),linear-gradient(#3b69a6,#3b69a6);height:35px;position:relative}.part1 .barrage .barrage_box a{line-height:35px}.part1 .barrage .barrage_box::after{content:"";position:absolute;width:0;height:0;border-left:16px solid #a4691d;border-top:8px solid transparent;border-bottom:8px solid transparent;right:-12px;top:50%;transform:translate(0,-50%)}.part1 .barrage::nth-child(even){color:red;background-color:#ccc}.part1 .barrage::nth-child(even) .barrage_box{background-image:linear-gradient(#a4691d,#a4691d),linear-gradient(#3b69a6,#3b69a6)}.part1 .part-main{background:url(../images/border.png) no-repeat center center;background-size:100% 100%;width:877px;height:261px;text-align:center;display:flex;align-items:center;justify-content:center;flex-direction:column}.part1 .part-main .p-tit{height:51px;font-size:51.05px;font-weight:400;font-stretch:normal;line-height:39.41px;letter-spacing:0;background:linear-gradient(0deg,#81411a 0,#8f5622 26%,#9b692a 50%,#c09034 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.part-main .time-line-box{width:1063px;height:419px;margin:58px auto 0;position:relative;display:flex;align-items:center}.part2 .part-main .time-line-box .time-line{display:flex;z-index:2}.part2 .part-main .time-line-box .time-line li{margin-right:75px;margin-left:89px;position:relative}.part2 .part-main .time-line-box .time-line li:nth-child(3){margin-left:109px}.part2 .part-main .time-line-box .time-line li:nth-child(3) .item-wrapper{width:254px;left:-109px}.part2 .part-main .time-line-box .time-line li:nth-child(4){margin-left:119px}.part2 .part-main .time-line-box .time-line li:nth-child(4) .item-wrapper{width:279px;left:-121px}.part2 .part-main .time-line-box .time-line .item-timenode{width:36px;height:36px;background-image:linear-gradient(0deg,#efb182 0,#804219 100%);border-image-slice:1;border-radius:50%;position:relative}.part2 .part-main .time-line-box .time-line .item-timenode::before{content:"";width:28px;height:28px;position:absolute;left:50%;top:50%;background-color:#fff;border-radius:50%;transform:translate(-50%,-50%)}.part2 .part-main .time-line-box .time-line .item-wrapper{width:213px;height:157px;background-image:linear-gradient(#a4691d,#a4691d),linear-gradient(#3b69a6,#3b69a6);background-blend-mode:normal,normal;box-shadow:0 3px 7px 0 rgba(0,0,0,.28);border-radius:15px;position:absolute;left:-88px;top:-190px;font-size:15.72px;color:#fff;text-align:center}.part2 .part-main .time-line-box .time-line .item-wrapper::after{content:"";position:absolute;width:0;height:0;border-top:30px solid #a4691d;border-right:30px solid transparent;border-left:30px solid transparent;bottom:-30px;left:50%;transform:translate(-50%,0)}.part2 .part-main .time-line-box .time-line .item-wrapper img{width:auto;height:82px;margin:13px auto 10px;display:inherit}.part2 .part-main .time-line-box .time-line .item-wrapper .txt{padding:0 5px}.part2 .part-main .time-line-box .time-line .item-wrapper.down{top:68px}.part2 .part-main .time-line-box .time-line .item-wrapper.down::after{top:-30px;bottom:0;transform:rotateX(180deg) translate(-50%,0)}.part2 .part-main .time-line-box .t-line{height:30px;background:url(../images/time-line.png) no-repeat top center;background-size:100% 100%;position:absolute;top:52%;left:0;animation:line 6s 0s both;transform:translate(0,-50%)}@keyframes line{0%{width:0}100%{width:1063px}}.part3{position:relative;margin:0 auto;background:url(../images/t_bg3.png) no-repeat top center;height:1050px;z-index:2;overflow:hidden;margin-top:-169px}.part3 .part-main{padding-top:237px}.part3 .part-main .swiper-container{display:none}.part3 .part-main .m-box{display:flex;margin-top:54px;justify-content:center}.part3 .part-main .m-box li .m-item{width:370px;height:553px;background:url(../images/pic1.png) no-repeat top center}.part3 .part-main .m-box li:nth-child(2) .m-item{background:url(../images/pic2.png) no-repeat top center;position:relative}.part3 .part-main .m-box li:nth-child(2) .m-item .item-big{width:233px;height:119px;background:url(../images/pic2-big.png) no-repeat top center;position:absolute;left:-11px;bottom:130px}.part3 .part-main .m-box li:nth-child(3) .m-item{background:url(../images/pic3.png) no-repeat top center}@media (max-width:750px){.banner-box{background-image:url(../images/m-t-bg.png);height:5.5rem;background-size:100% 100%}.banner-box .main-header{height:.8rem}.banner-box .main-con{padding-top:1.85rem}.banner-box .main-con .main-title{width:7.03rem;height:2.36rem}.part1{background-image:url(../images/m-t-bg1.png);height:6.4rem;background-size:100% 100%;margin-top:-.88rem}.part1 .barrager-up{margin-top:.88rem;height:1.53rem}.part1 .barrager-down{height:2.06rem}.part1 .barrage{bottom:45px}.part1 .barrage .barrage_box{height:.46rem}.part1 .barrage .barrage_box a{font-size:.22rem;line-height:.46rem}.part1 .barrage .barrage_box::after{border-left:.21rem solid #a4691d;border-top:.1rem solid transparent;border-bottom:.11rem solid transparent;right:-.15rem}.part1 .part-main{width:7.06rem;height:1.93rem}.part1 .part-main .p-tit{font-size:.45rem;margin-bottom:.22rem;line-height:inherit;height:auto}.part1 .part-main .p-sub-tit{font-size:.44rem;line-height:inherit;height:auto}.part-main .icon-rectangle{width:.17rem;height:.17rem}.part-main .p-sub-tit{font-size:.5rem}.part-main .p-sub-tit .txt{display:block}.part-main .p-sub-tit .m-show{display:inline-block}.part-main .p-sub-tit .pc-show{display:none}.part2{background-image:url(../images/m-t-bg2.png);height:8.56rem;background-size:100% 100%;margin-top:-.76rem}.part2 .part-main{padding-top:1.1rem}.part2 .part-main .time-line-box{margin:.37rem 0 0;height:5.96rem;overflow-x:auto;overflow-y:hidden;width:100%}.part2 .part-main .time-line-box .time-line li:nth-child(3) .item-wrapper{width:3.5rem;left:-1.52rem}.part2 .part-main .time-line-box .time-line li:nth-child(4) .item-wrapper{width:3.85rem;left:-1.69rem}.part2 .part-main .time-line-box .time-line .item-timenode{width:.47rem;height:.47rem}.part2 .part-main .time-line-box .time-line .item-timenode::before{width:.39rem;height:.39rem}.part2 .part-main .time-line-box .time-line .item-wrapper{width:3.01rem;height:2.24rem;font-size:.22rem;top:-2.72rem;left:-1.3rem}.part2 .part-main .time-line-box .time-line .item-wrapper img{height:1.15rem}.part2 .part-main .time-line-box .time-line .item-wrapper::after{border-top-width:.44rem;border-right-width:.44rem;border-left-width:.44rem;bottom:-.44rem}.part2 .part-main .time-line-box .time-line .item-wrapper.down{top:.96rem}.part2 .part-main .time-line-box .time-line .item-wrapper.down::after{top:-.43rem}.part2 .part-main .time-line-box .t-line{height:.3rem;top:51.5%}.part3{background:url(../images/m-t-bg3.png) no-repeat top center;height:12.49rem;background-size:100% 100%;margin-top:-1.21rem}.part3 .part-main{padding-top:1.66rem}.part3 .part-main .m-box{margin-top:.41rem;display:none}.part3 .part-main .m-box li .m-item{background:url(../images/m-pic1.png) no-repeat top center;width:5.95rem;height:8.93rem;background-size:100% 100%}.part3 .part-main .m-box li:nth-child(2) .m-item{background:url(../images/m-pic2.png) no-repeat top center;width:6.16rem;background-size:100% 100%}.part3 .part-main .m-box li:nth-child(2) .m-item .item-big{display:none}.part3 .part-main .m-box li:nth-child(3) .m-item{background:url(../images/m-pic3.png) no-repeat top center;background-size:100% 100%}.part3 .part-main .swiper-container{display:block}.part3 .part-main .smallPicture{width:5.95rem;height:8.93rem;margin:.41rem auto 0}.part3 .part-main .smallPicture img{height:100%}.part3 .swiper-button-next:after,.part3 .swiper-button-prev:after{color:#86491a}.part3 .swiper-button-prev,.part3 .swiper-container-rtl .swiper-button-next{background-image:url(../images/arrow-left.png);width:.37rem;height:.69rem;background-size:100% 100%}.part3 .swiper-button-next,.part3 .swiper-container-rtl .swiper-button-prev{background-image:url(../images/arrow-right.png);width:.37rem;height:.69rem;background-size:100% 100%}}