.sections{ width: 100%; position: relative;font-size: 0;background: #000;}
.sections img{ display: block; max-width: 100%;line-height: 0;margin-top: -2px;}
.section{ width: 100%; position: relative;font-size: 0;}
.a_anim{ opacity: 0;}

@keyframes fadeInLeft1{
    0%{ opacity: 0; transform: translate(-100px,0);}
    100%{ opacity: 1; transform: translate(0,0);}
}

@keyframes fadeInUp1{
    0%{ opacity: 0; transform: translate(0,60px);}
    100%{ opacity: 1; transform: translate(0,0);}
}

.fadeInUp{ animation: fadeInUp1  0.6s ease 0.2s  forwards; will-change: transform,opacity;}
.fadeInUp1{ animation: fadeInUp1  0.6s ease 0.4s  forwards; will-change: transform,opacity;}
.fadeInUp2{ animation: fadeInUp1  0.6s ease 0.6s  forwards; will-change: transform,opacity;}

/*fonts*/
.txtC{text-align: center;}
.font_bold{font-weight: bold;}
.colorfff{ color: #fff; }
.section{width: 100%;position: relative;}
.section1{position: relative;}

.fsize26{ font-size: 1.4vw;line-height: 1.6;}
.fsize20{ font-size: 0.9vw;line-height: 1.6;letter-spacing: 0.1vw;}
.section1_pic{width: 39%;position: absolute;  top: 21%;left: 30.6%;}
.swiper-containerpc1 .swiper-pagination-bullets{bottom: 1.5vw!important;}
.swiper-containerpc1 .swiper-pagination-bullet{background:#282727;opacity: 1;border-radius: 0.3vw;transition: all 0.3s ease-in;}
.swiper-containerpc1 .swiper-pagination-bullet-active{background:#ae8e53;width: 3vw;border-radius: 0.3vw;}
.swiper-containerpc1 .swiper-button-prev, .swiper-containerpc1 .swiper-button-next{background: unset!important;}
.swiper-containerpc1 .swiper-button-prev{left: 3%;}
.swiper-containerpc1 .swiper-button-next{right: 3%;}

.nav_box{position: absolute;width: 42%;top:30%;left: 50%;transform: translateX(-50%);display: flex;justify-content: space-between;}
.nav_box_item{width: 7.8vw;height: 6.4vw;cursor: pointer;}
.nav_box .nav_box_item:first-child{background:url('../images/nav_item_01.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(2){background:url('../images/nav_item_02.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(3){background:url('../images/nav_item_03.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(4){background:url('../images/nav_item_04.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(5){background:url('../images/nav_item_05.png') left top no-repeat;background-size: 100% 100%;}

.nav_box .nav_box_item:first-child.active{background:url('../images/nav_item_01_active.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(2).active{background:url('../images/nav_item_02_active.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(3).active{background:url('../images/nav_item_03_active.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(4).active{background:url('../images/nav_item_04_active.png') left top no-repeat;background-size: 100% 100%;}
.nav_box .nav_box_item:nth-child(5).active{background:url('../images/nav_item_05_active.png') left top no-repeat;background-size: 100% 100%;}

.content_box{position: absolute;width: 100%;top:40%;left: 0;}
.content_box .content_box_item{display: none;width: 100%;height: 45.8vw;position: relative;}
.content_box .content_box_item.active{display: block;}
.title_sample{width: 100%;position: absolute;left: 0;font-size: 3.4vw;top:7%;color: #fff;text-align: center;}
.content_box .swiper-slide{width: 55vw!important;}
.content_box .swiper-button-prev, .content_box .swiper-button-next{background: unset!important;}
.content_box .swiper-button-prev{left: 24%;}
.content_box .swiper-button-next{right: 24%;}
.content_box_title{max-width: 21.7vw;position: absolute;right: 1.5vw;bottom: 0;}
.content_box_curret{position: absolute;font-size: 2.8vw;right: 25.5%;bottom: 16%;color: #e5c6ae;font-weight: lighter;}
.content_box_xian{position: absolute;width:3vw;height: 1px;background: #fff; right: 24%;bottom: 17%;transform: rotate(-45deg);}
.content_box_total{position: absolute;font-size: 1.5vw;right: 23.5%;bottom: 13%;color: #fff;font-weight: lighter;}

.content_box_text{position: absolute;bottom: 15%;left: 28%;width: 43.5%;}
.content_box_text .content_box_text_item{display: none;width: 100%;}
.content_box_text .content_box_text_item.active{display: flex;font-size: 1.8vw;color: #fff;align-items: baseline;justify-content: center;}
.content_box_text .content_box_text_item span{color:#a61225;transform: scale(0.7);}
.a7rm5_logo{width: 5.9vw;}
.a9m3_logo{width: 5.5vw;}
.a1m2_logo{width: 4.9vw;}

.section2{ width:100%;}
.section2 .items{width: 74.4vw;position: absolute;left: calc(50% - 37.2vw); top:34.1%; display: flex;justify-content: space-between;flex-wrap: wrap;}
.section2 .items .item{position: relative;margin-bottom: 1.5vw;width: 24vw;}
.section2 .items .item1{position: relative;margin-bottom: 1.5vw;width: 36.5vw;}
.section2 .items .item1 .item_title{position: absolute;left:0;top: 1.1vw;width: 100%;}
.section2 .items .item1 .item_des{position: absolute;left:0;top: 2.9vw;width: 100%;}

.section2 .items .item .item_title{position: absolute;left:0;top: 1.3vw;width: 100%;}
.section2 .items .item .item_title1{position: absolute;left:8%;top: 2.5vw;}
.section2 .items .item .item_des{position: absolute;left:0;top: 2.9vw;width: 100%;}
.section2 .items .item .new{position: absolute;left: 15vw;top: 1.4vw;width: 4.8vw;}

.section3 .items{width: 74.4vw;position: absolute;left: calc(50% - 37.2vw); top:18.1%; display: flex;justify-content: space-between;flex-wrap: wrap;}
.section3 .items .item{position: relative;width: 24.1vw;margin-bottom: 3vw;}
.section3 .items .item1{position: relative;margin-top: 2vw;width: 100%;}

.section3 .items .item .item_title{position: absolute;left:0;top: 14.5vw;width: 100%;}
.section3 .items .item .item_title1{position: absolute;left:0;top: 16vw;width: 100%;}
.section3 .items .item .item_des{position: absolute;left:0;top:17.3vw;width:100%;}
.section3 .items .item .item_btn{position: absolute;left:7.5vw;top:21.3vw;width:9vw;}
.section3 .items .item .item_des1{position: absolute;left:0;top:18.8vw;width:100%;}

.section3 .items .item1 .item_title{position: absolute;left:2.1vw;top: 18.4vw;width: 32vw;}
.section3 .items .item1 .item_des{position: absolute;left:2.1vw;top:20.8vw;width:33vw;}

.section3 .items .item1 .item_title1{position: absolute;left:2.1vw;top: 9.4vw;width: 32vw;}
.section3 .item_title{position: absolute;width: 100%;top: 6.5%;left: 0;}
.section3 .item_des{position: absolute;left: 0;top: 11.1vw;width:100%;}
.section3 .item_title1{position: absolute;width: 50%;top: 5.4vw;left: 10.4%;}

@media screen and (min-width:1921px) {
    .section{width: 1920px;margin: 0 auto;}
    .fsize26{ font-size: 26px;line-height: 1.6;} .fsize20{ font-size: 17px;line-height: 1.6;letter-spacing: 1px;} .section1_pic{width: 39%;position: absolute; top: 21%;left: 30.6%;} .swiper-containerpc1 .swiper-pagination-bullets{bottom: 28px!important;} .swiper-containerpc1 .swiper-pagination-bullet{background:#282727;opacity: 1;border-radius: 5px;transition: all 0.3s ease-in;} .swiper-containerpc1 .swiper-pagination-bullet-active{background:#ae8e53;width: 57px;border-radius: 5px;} .nav_box{position: absolute;width: 42%;top:30%;left: 50%;transform: translateX(-50%);display: flex;justify-content: space-between;} .nav_box_item{width: 149px;height: 122px;background-size: 100% 100%;cursor: pointer;} .nav_box .nav_box_item:first-child{background:url('../images/nav_item_01.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(2){background:url('../images/nav_item_02.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(3){background:url('../images/nav_item_03.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(4){background:url('../images/nav_item_04.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(5){background:url('../images/nav_item_05.png') left top no-repeat;} .nav_box .nav_box_item:first-child.active{background:url('../images/nav_item_01_active.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(2).active{background:url('../images/nav_item_02_active.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(3).active{background:url('../images/nav_item_03_active.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(4).active{background:url('../images/nav_item_04_active.png') left top no-repeat;} .nav_box .nav_box_item:nth-child(5).active{background:url('../images/nav_item_05_active.png') left top no-repeat;} .content_box{position: absolute;width: 100%;top:40%;left: 0;} .content_box .content_box_item{display: none;width: 100%;height: 879px;position: relative;} .content_box .content_box_item.active{display: block;} .title_sample{width: 100%;position: absolute;left: 0;font-size: 65px;top:7%;color: #fff;text-align: center;} .content_box .swiper-slide{width: 1056px!important;} .content_box .swiper-button-prev, .content_box .swiper-button-next{background: unset!important;} .content_box .swiper-button-prev{left: 24%;} .content_box .swiper-button-next{right: 24%;} .content_box_title{max-width: 416px;position: absolute;right: 28px;bottom: 0;} .content_box_curret{position: absolute;font-size: 53px;right: 25.5%;bottom: 16%;color: #e5c6ae;font-weight: lighter;} .content_box_xian{position: absolute;width:57px;height: 1px;background: #fff; right: 24%;bottom: 17%;transform: rotate(-45deg);} .content_box_total{position: absolute;font-size: 28px;right: 23.5%;bottom: 13%;color: #fff;font-weight: lighter;} .content_box_text{position: absolute;bottom: 15%;left: 28%;width: 43.5%;} .content_box_text .content_box_text_item{display: none;width: 100%;} .content_box_text .content_box_text_item.active{display: flex;font-size: 34px;color: #fff;align-items: baseline;justify-content: center;} .content_box_text .content_box_text_item span{color:#a61225;transform: scale(0.7);} .a7rm5_logo{width: 113px;} .a9m3_logo{width: 105px;} .a1m2_logo{width: 94px;} .section2{ width:100%;} .section2 .items{width: 1428px;position: absolute;left: calc(50% - 714px); top:34.1%; display: flex;justify-content: space-between;flex-wrap: wrap;} .section2 .items .item{position: relative;margin-bottom: 28px;} .section2 .items .item1 .item_title{position: absolute;left:0;top: 21px;width: 100%;} .section2 .items .item1 .item_des{position: absolute;left:0;top: 55px;width: 100%;} .section2 .items .item .item_title{position: absolute;left:0;top: 24px;width: 100%;} .section2 .items .item .item_title1{position: absolute;left:8%;top: 48px;} .section2 .items .item .item_des{position: absolute;left:0;top: 55px;width: 100%;} .section2 .items .item .new{position: absolute;left: 288px;top: 26px;width: 92px;} .section3 .items{width: 1428px;position: absolute;left: calc(50% - 714px); top:18.1%; display: flex;justify-content: space-between;flex-wrap: wrap;} .section3 .items .item{position: relative;width: 462px;margin-bottom: 57px;} .section3 .items .item1{position: relative;margin-top: 38px;width: 100%;} .section3 .items .item .item_title{position: absolute;left:0;top: 278px;width: 100%;} .section3 .items .item .item_title1{position: absolute;left:0;top: 307px;width: 100%;} .section3 .items .item .item_des{position: absolute;left:0;top:332px;width:100%;} .section3 .items .item .item_btn{position: absolute;left:144px;top:408px;width:172px;} .section3 .items .item .item_des1{position: absolute;left:0;top:360px;width:100%;} .section3 .items .item1 .item_title{position: absolute;left:40px;top: 353px;width: 614px;} .section3 .items .item1 .item_des{position: absolute;left:40px;top:399px;width:633px;} .section3 .items .item1 .item_title1{position: absolute;left:40px;top: 180px;width: 614px;} .section3 .item_title{position: absolute;width: 100%;top: 6.5%;left: 0;} .section3 .item_des{position: absolute;left: 0;top: 213px;width:100%;} .section3 .item_title1{position: absolute;width: 50%;top: 103px;left: 10.4%;}
    .section2{width: 1920px;margin: 0 auto;}
    .section2 .items .item{position: relative;margin-bottom: 28px;width: 460px;} .section2 .items .item1{position: relative;margin-bottom: 28px;width: 700px;}
}