/* mouse */
.mouse_follow{
    width: 5.5vw;
    position: fixed;
    z-index: 22;
    pointer-events: none;
	opacity: 0;
}
.mouse_follow img{
    width: 100%;
}

/* 视频弹窗 */
.video_full_pc{
	width: 100%;
	height: 100vh;
	position: fixed;
	top: 0;
	z-index: 100000;
	background-color: #000000;
	display: none;
}
.video_full_pc video{
	width: 100%;
	height: 100vh;
	top: 0;
	z-index: 5;
}
.shut_down_btn{
	position: absolute;
	top: 0.5rem;
	right: 0.5rem;
	width: 0.5rem;
	height: 0.5rem;
	z-index: 6;
	background-color: #6b6b6b;
	border-radius: 100%;
	opacity: 0.5;
	transition: all .5s;
	cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}
.shut_down_btn img{
    width: 0.15rem;
}
.shut_down_btn:hover{
	opacity: 1;
}

/* banner */
.op0{
    opacity: 0 !important;
}
.banner_bottom_t{
    transition: all .6s;
}
.banner{
	width: 100%;
	height: 100vh;
	position: relative;
}
.banner video{
	width: 100%;
	height: 100vh;
	object-fit: cover;
    z-index: 2;
    position: relative;
}
.banner img{
    position: absolute;
    top: 0;
    height: 100vh;
    width: 100%;
    z-index: 1;
}
.banner_text{
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	z-index: 2;
}
.banner_text div:nth-of-type(1){
	font-size: 0.6rem;
	color: rgba(255,255,255,1);
	font-weight: 400;
	text-align: center;
	font-weight: 300;
    z-index: 2;
    position: relative;
}
.banner_text div:nth-of-type(2){
	font-size: 0.68rem;
	color: #fff;
	font-weight: 400;
	text-align: center;
	margin-top: -0.4rem;
}
.banner_bottom_tl{
	position: absolute;
	bottom: 10vh;
	display: flex;
	color: #fff;
	font-size: 0.22rem;
	font-weight: 300;
	width: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
    z-index: 2;
    position: relative;
}
.banner_bottom_l{
	width: 1.8rem;
	margin: 0 1rem;
	height: 1px;
	background-color: rgba(255,255,255,.5);
}

.banner .video-btn {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  left: 50%;
  transform: translateX(-50%);
  bottom: 1.2rem;
  width: 2.6rem;
  height: 0.55rem;
  border-radius: 0.47rem;
  cursor: pointer;
  transition: all 0.3s;
  background: rgba(0,0,0,.4);
  opacity: .6;
  border: 1px solid rgba(0, 0, 0, .5);
}
.banner .video-btn:hover {
  opacity: 1;
}
.banner .video-btn .text {
  font-size: 0.18rem;
  color: #fff;
  margin-right: 0.17rem;
  font-weight: normal
}
.banner .video-btn .delta {
  width: 0.12rem;
}
.banner .video-btn .delta img {
  width: 100%;
  position: relative;
  height: auto;
}




.nav_box{
	position: relative;
    z-index: 1;
}
.second_nav{
	position: sticky;
	top: 0;
	height: 0.6rem;
	line-height: 0.6rem;
	z-index: 200;
	backdrop-filter: saturate(80%) blur(50px);
	-webkit-backdrop-filter: saturate(80%) blur(50px);
}
/* .second_nav::before{
	content: '';
	display: block;
	width: 100%;
	height: 1px;
	background-color: #fff;
	position: absolute;
	top: 0rem;
} */
.second_nav::after{
	content: '';
	display: block;
	width: 100%;
	height: 1px;
	background-color: rgba(255,255,255,.2);
	position: absolute;
	bottom: 0rem;
}
.second_nav.theme::after, .second_nav.theme::before{
	background-color: #000;
}
.second_nav_text{
	height: 0.6rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
	position: absolute;
	top: 0rem;
	color: #fff;
	width: 100%;
	padding: 0 2.5rem;
	font-size: 0.18rem;
}
.theme .second_nav_text{
	color: #000;
}
.second_nav_text div{
	opacity: 0.3;
	transition: all .4s;
	cursor: pointer;
}
.second_nav_text div.active{
	opacity: 1;
}

.unit_1{
	margin-top: -0.6rem;
	height: 325vh;
}
.unit_1 video{
	width: 100%;
	height: 100vh;
	object-fit: cover;
	position: sticky;
	top: 0;
}
.mark_all{
	position: relative;
}
.mark_color{
	height: 175vh;
	width: 100%;
	position: relative;
	z-index: 2;
	background-image: linear-gradient(to bottom, rgba(171, 135, 105, 0), rgba(171, 135, 105, 0.07) 7.9%, rgba(171, 135, 105, 0.15) 15.3%, rgba(171, 135, 105, 0.22) 22.2%, rgba(171, 135, 105, 0.28) 28.7%, rgba(171, 135, 105, 0.34) 34.8%, rgba(171, 135, 105, 0.4) 40.6%, rgba(171, 135, 105, 0.46) 46.2%, rgba(171, 135, 105, 0.51) 51.7%, rgba(171, 135, 105, 0.57) 57.2%, rgba(171, 135, 105, 0.62) 62.8%, rgba(171, 135, 105, 0.68) 68.7%, rgba(171, 135, 105, 0.75) 75.2%, rgba(171, 135, 105, 0.82) 82.6%, rgba(171, 135, 105, 0.88) 91.2%, rgba(171, 135, 105, 0.9) 92.5%, rgba(171, 135, 105, 0.92) 94.5%, rgba(171, 135, 105, 0.96) 96.5%, rgb(171, 135, 105) 100%);
}
.mark_color_in{
	position: relative;
	z-index: 2;
	height: 50vh;
	background-color: rgb(171, 135, 105);
}
.mark_t{
	width: 100%;
	position: absolute;
	z-index: 2;
	font-size: 0.26rem;
	color: #fff;
	text-align: center;
	opacity: 0;
	transition: opacity 1.5s, transform 1s;
	transform: translateY(1rem);
	font-weight: 300;
	line-height: 0.5rem;
}
.mark_t .mark_title{
	font-size: 0.42rem;
	display: block;
	line-height: 0.7rem;
	
}
.mark_t2 .mark_title{
	font-size: 0.32rem;
}
._EN{
	font-size: 0.5rem;
	font-weight: 400;
}
.mark_t1{
	top: 35vh;
	opacity: 0.5;
	display: flex;
	justify-content: center;
	width: 100%;
}
.mark_t1 img{
	width: 2rem;
}
.mark_t2{
	top: 80vh;
}
.mark_t3{
	top: 110vh;
}
.mark_t4{
	top: 155vh;
}
.mark_t.active{
	opacity: 1;
	transform: translateY(0px);
}
.mark_t._none{
	opacity: 0 !important;
}
.mark_t3 .mark_title, .mark_t4 .mark_title{
	font-weight: 400;
}
.unit_btn{
	display: flex;
	align-items: center;
	position: absolute;
	top: 195vh;
	z-index: 2;
	left: 50%;
	transform: translateX(-50%);
}
.video_text_btn{
	display: flex;
	background-color: rgba(255,255,255,0.1);
	width: 2rem;
	height: 0.5rem;
	border-radius: 60px;
	align-items: center;
	cursor: pointer;
	transition: all .4s;
}
.video_text_btn:hover{
	background-color: rgba(255,255,255,0.3);
}
.unit_btn_t{
	margin-left: 0.55rem;
	font-size: 0.16rem;
	letter-spacing: 0.01rem;
	color: #fff;
}
.video_text_btn .video_btn_b{
	width: 0.35rem;
	height: 0.35rem;
	position: absolute;
	right: 0.08rem;
	background-color: rgba(255,255,255,0.5);
	border-radius: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
}
.video_btn_b div{
	width: 0;
	height: 0;
	border-top: 0.08rem solid #fff;
	border-right: 0.05rem solid transparent;
	border-left: 0.05rem solid transparent;
	transform: rotate(-90deg);
	margin-left: 0.02rem;
}
.video_text_btn .video_btn_f{
	margin-left: 0.4rem;
	font-size: 0.14rem;
}


.unit_2{
	height: 100vh;
	width: 100%;
	overflow: hidden;
	background-color: #f6f2ed;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0 3rem 0 2rem;
}
.yj_img_list{
	position: relative;
	height: 100%;
}
.yil_1{
	position: absolute;
	top: 60%;
	left: 0.8rem;
	transform: translateY(-50%);
	width: 4.5rem;
	z-index: 1;
	transition: all 1s;
	opacity: 0.5;
}
.yil_2{
	position: absolute;
	top: 60%;
	left: 4.3rem;
	transform: translateY(-50%);
	width: 3rem;
	z-index: 2;
	transition: all 1s;
	opacity: 0;
}
.yil_3{
	position: absolute;
	top: 75%;
	left: 3.5rem;
	transform: translateY(-50%);
	width: 3rem;
	z-index: 3;
	transition: all 1s;
	opacity: 0;
}
.yil_4{
	position: absolute;
	top: 75%;
	left: 0rem;
	transform: translateY(-50%);
	width: 2rem;
	z-index: 4;
	transition: all 1s;
	opacity: 0;
}
.yil_5{
	position: absolute;
	top: 60%;
	left: 2.9rem;
	transform: translateY(-50%);
	width: 2.2rem;
	z-index: 5;
	transition: all 1s;
	opacity: 0;
}
.yj_img_list .yil_1.active{
	top: 50%;
	opacity: 1;
}
.yj_img_list .yil_2.active{
	top: 50%;
	opacity: 1;
}
.yj_img_list .yil_3.active{
	top: 65%;
	opacity: 1;
}
.yj_img_list .yil_4.active{
	top: 65%;
	opacity: 1;
}
.yj_img_list .yil_5.active{
	top: 50%;
	opacity: 1;
}

.yj_text_list{
	
}
.yj_text_top{
	font-size: 0.38rem;
	line-height: 0.54rem;
	font-weight: 400;
	letter-spacing: 0.05rem;
	padding-bottom: 1.2rem;
	padding-top: 0.5rem;
	border-bottom: 1px solid #5e493d;
	margin-bottom: 0.5rem;
}
.yj_text_bottom{
	line-height: 0.4rem;
	font-size: 0.2rem;
	font-weight: 300;
}



.unit_3{
	width: 100%;
	height: 100vh;
	overflow: hidden;
	position: relative;
}
.unit_3_bk{
	width: 100%;
	height: 100vh;
	object-fit: cover;
}
.unit_3_text{
	width: 6.5rem;
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	left: 1.5rem;
}
.unit_3_text_bk{
	width: 100%;
}
.unit_3_t{
	position: absolute;
	width: 100%;
	height: 100%;
	padding: 1.3rem 0.8rem;
	top: 0;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
	font-size: 0.18rem;
	line-height: 0.35rem;
	font-weight: 300;
}



.unit_4{
	width: 100%;
	height: 100vh;
	overflow: hidden;
	position: relative;
	background-color: #c2bdb7;
}
.u4-pc{
	padding: 25vh 0 0;
	display: flex;
	flex-direction: column;
	align-items: center;
}
.u4-mb{
	display: none;
}
.change_year_box{
	display: flex;
	flex-direction: column;
	align-items: center;
	width: 100%;
	opacity: 0;
	pointer-events: none;
	position: absolute;
	top: 25vh;
	transition: opacity .5s;
}
.change_year_box.active{
	opacity: 1;
	pointer-events: auto;
}
.change_year_box:nth-of-type(1){
	position: relative;
	top: 0;
}
.unit_4_sw{
	width: 40%;
	height: 30vh;
	overflow: initial;
}
.unit_4_sw .swiper-slide{
	text-align: center;
	opacity: 0.5;
	transition: all .7s;
}
.unit_4_sw .swiper-slide div:nth-of-type(1){
	font-size: 0.2rem;
	font-weight: 300;
}
.unit_4_sw .swiper-slide div:nth-of-type(2){
	margin-top: 0.2rem;
	font-size: 0.25rem;
	line-height: 0.45rem;
	font-weight: 300;
    padding: 0 0.6rem;
}
.unit_4_sw .swiper-slide-active{
	opacity: 1;
}
.unit_4_btn{
	display: flex;
}
.unit_4_sw_p,.unit_4_sw_n{
	width: 0.7rem;
	height: 0.7rem;
	border-radius: 100%;
	border: 1px solid #524742;
	background-color: transparent;
	transition: all .4s;
	cursor: pointer;
	display: flex;
	justify-content: center;
	align-items: center;
}
.unit_4_sw_p{
	transform: rotate(180deg);
}
.unit_4_sw_n{
	margin-left: 1rem;
}
.unit_4_sw_p:hover,.unit_4_sw_n:hover{
	background-color: #524742;
}
.unit_4_sw_p div,.unit_4_sw_n div{
	width: 0;
	height: 0;
	border-top: 0.12rem solid #524742;
	border-right: 0.07rem solid transparent;
	border-left: 0.07rem solid transparent;
	transform: rotate(-90deg);
	margin-left: 0.02rem;
	transition: all .4s;
}
.unit_4_sw_p:hover div,.unit_4_sw_n:hover div{
	border-top: 0.12rem solid #fff;
}
.year_show{
	position: absolute;
	bottom: 1.8rem;
	display: flex;
	align-items: center;
}
.u4_point{
	width: 0.1rem;
	height: 0.1rem;
	border-radius: 100%;
	background-color: #524742;
	position: relative;
	opacity: 0.5;
	transition: opacity .5s;
	cursor: pointer;
}
.u4_line{
	width: 2rem;
	height: 1px;
	background-color: #524742;
	opacity: 0.5;
}
.u4_point:after{
	content: '';
	position: absolute;
	display: block;
	bottom: -0.7rem;
	left: 50%;
	transform: translateX(-50%);
	font-size: 0.3rem;
	opacity: 0.5;
	transition: opacity .5s;
}
.u4_point.active{
	opacity: 1;
}
.u4_point.active:after{
	opacity: 1;
}
.u4_point_0:after{
	content: '2025';
}
.u4_point_1:after{
	content: '2024';
}
.u4_point_2:after{
	content: '2023';
}
.u4_point_3:after{
	content: '2022';
}
.u4_point_4:after{
	content: '2021';
}
.u4_point_5:after{
	content: '2020';
}
.u4_point_6:after{
	content: '2019';
}
.u4_point_7:after{
	content: '2018';
}

/* 视频弹窗 */
.video-box{
    width: 100%;
    position: fixed;
    height: 100vh;
    background: #000;
    z-index: 100000;
    top: 0;
    left: 0;
    display: none
}
.video-box video{
    width: 100%;
    height: 100vh
}
.video-box .close-box{
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 0.5rem;
    height: 0.5rem;
    z-index: 6;
    background-color: #6b6b6b;
    border-radius: 100%;
    opacity: 0.5;
    transition: all .5s;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}
.video-box .close-box img{
    width: 0.15rem;
}

@media (max-width: 767px){
	/* banner */
	.banner_bottom_tl{
		padding: 0 0.5rem;
	}
	.banner_bottom_l{
		margin: 0 0.2rem;
	}
	.banner_bottom_t{
		white-space: nowrap;
	}
	
	/* second */
	.second_nav{
		height: 0.9rem;
	}
	.second_nav_text{
		height: 0.9rem;
		font-size: 0.24rem;
	}
	
	.unit_1{
		margin-top: -0.9rem;
	}
    .unit_1 video{
        z-index: 2;
    }
    .u1_video_cover_mb{
        position: sticky;
        top: 0;
        z-index: 1;
        width: 100%;
        height: 100vh;
        object-fit: cover;
        margin-top: -100vh;
    }
	
	.mark_t .mark_title{
		font-size: 0.5rem;
	}
	.mark_t{
		line-height: 0.6rem;
		padding: 0 0.5rem;
		font-size: 0.28rem;
	}
	.mark_t4{
		top: 147vh;
	}
	.mark_t3 .mark_title, .mark_t4 .mark_title{
		margin-bottom: 0.2rem;
	}
	.second_nav_text{
		padding: 0 0.5rem;
	}
	
	.video_text_btn{
		width: 3rem;
		height: 0.8rem;
	}
	.video_text_btn .video_btn_b{
		width: 0.6rem;
		height: 0.6rem;
		right: 0.1rem;
	}
	.video_btn_b div{
		border-top: 0.14rem solid #fff;
		border-right: 0.1rem solid transparent;
		border-left: 0.1rem solid transparent;
	}
	.unit_btn_t{
		margin-left: 0.8rem;
		font-size: 0.24rem;
	}
	
	/* u2 */
	.unit_2{
		flex-direction: column;
		padding: 0 ;
	}
	.yj_img_list{
		height: 54vh;
		width: 100%;
	}
	.yj_text_list{
		height: 46vh;
		text-align: center;
	}
	.yj_text_top{
		padding-bottom: 0.6rem;
		margin-bottom: 0.6rem;
		font-size: 0.4rem;
		line-height: 0.58rem;
		font-weight: 400;
		letter-spacing: inherit;
	}
	.yj_text_bottom{
		line-height: 0.6rem;
		font-size: 0.3rem;
	}
	.yj_img_list{
		
	}
	.yil_1{
		left: 1.2rem;
		width: 4.2rem;
	}
	.yil_2{
		left: auto;
		right: 0.6rem;
		width: 2.8rem;
	}
	.yil_3{
		left: auto;
		right: 1.3rem;
		width: 2.8rem;
	}
	.yil_4{
		left: 0.6rem;
		width: 1.8rem;
	}
	.yil_5{
		width: 2rem;
	}
	
	/* u3 */
	.unit_3_t{
		padding: 0.8rem 0.8rem;
	}
	.unit_3_text{
		left: 50%;
		top: auto;
		bottom: 1.5rem;
		transform: translateX(-50%);
	}
	.unit_3_t div{
		line-height: 0.5rem;
		font-size: 0.26rem;
	}
	.unit_3_t{
		text-align: center;
	}
	
	
	/* u4 */
	.u4-pc{
		display: none;
	}
	.u4-mb{
		display: block;
		position: relative;
		padding: 15vh 1rem 0;
		height: 100vh;
	}
	.change_sw_mb{
		position: absolute;
		top: 15vh;
		width: calc(100% - 2rem);
		opacity: 0;
		pointer-events: none;
	}
	.change_sw_mb:nth-of-type(1){
		position: relative;
		top: 0;
		width: 100%;
	}
	.change_sw_mb.active{
		opacity: 1;
		pointer-events: auto;
	}
	.u4_sw_mb_all {
		display: flex;
		flex-direction: column;
		align-items: center;
            height: 60vh;
	}
	.detail_min_mb:nth-of-type(2){
		margin-top: 5vh;
	}
    .detail_min_mb:nth-of-type(3){
        margin-top: 5vh;
    }
	.dmm_time{
		text-align: center;
		font-size: 0.3rem;
		font-weight: 300;
	}
	.dmm_text{
		text-align: center;
		font-size: 0.34rem;
		margin-top: 0.4rem;
		line-height: 0.6rem;
		font-weight: 300;
	}
	.unit_4_btn{
		margin-top: 1rem;
        position: absolute;
        bottom: 0vh;
        z-index: 2;
	}
	.unit_4_sw_p, .unit_4_sw_n{
		width: 1rem;
		height: 1rem;
	}
	.unit_4_sw_p div, .unit_4_sw_n div{
		border-top: 0.18rem solid #524742;
		border-right: 0.12rem solid transparent;
		border-left: 0.12rem solid transparent;
		margin-left: 0.1rem;
	}
	.year_mb_sw{
		position: absolute;
		bottom: 1.5rem;
		left: 0;
		width: 100%;
		overflow: inherit;
	}
	.year_mb_sw .swiper-slide{
		display: flex;
		width: 100%;
        height: 1.4rem;
		align-items: center;
	}
	.year_mb_sw .swiper-slide .year_mb_point{
		opacity: 0.5;
		transition: all .5s;
	}
	.year_mb_sw .swiper-slide-active .year_mb_point{
		opacity: 1;
	}
	.year_mb_point{
		width: 0.2rem;
		height: 0.2rem;
		border-radius: 100%;
		background-color: #524742;
		position: relative;
	}
	.year_mb_line{
		flex: 1;
		height: 1px;
		border-radius: 0%;
		background-color: #524742;
	}
	.year_mb_point:after{
		content: '';
		position: absolute;
		display: block;
		bottom: -0.7rem;
		left: 50%;
		transform: translateX(-50%);
		font-size: 0.3rem;
	}
    .year_mb_point_24:after{
		content: '2025';
	}
	.year_mb_point_1:after{
		content: '2024';
	}
	.year_mb_point_2:after{
		content: '2023';
	}
	.year_mb_point_3:after{
		content: '2022';
	}
	.year_mb_point_4:after{
		content: '2021';
	}
	.year_mb_point_5:after{
		content: '2020';
	}
	.year_mb_point_6:after{
		content: '2019';
	}
    .year_mb_point_7:after{
		content: '2018';
	}



    .banner .video-btn{
        width: 3.88rem;
        height: .87rem;
        border-radius: 0.7rem;
        opacity: 1;
        bottom: 1.75rem;
        z-index: 55;
        zoom: 1;
    }
    .banner .video-btn .text{
        font-size: .24rem;
        margin-right: .3rem;
    }
    .banner .video-btn .delta{
        width: .13rem
    }

}


.unit_other{
    position: relative;
    height: auto;
}
.unit_other img{
    width: 100%;
}

.unit_other_t{
    position: absolute;
    top: 56%;
    transform: translateY(-50%);
    right: 0;
    z-index: 1;
    width: 35vw;
}
.unit_other_t1{
    font-size: 0.28rem;
    font-weight: 300;
}
.unit_other_t2{
    font-size: 0.34rem;
    font-weight: 300;
    margin-top: 0.15rem;
    line-height: 1.2em;
}

.unit_other .module4-bth{
    height: 0.5rem;
    width: 2.2rem;
    border: 1px solid #86655d;
    font-size: .14rem;
    color: #86655d;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: .4rem;
    background-color: #fff;
    cursor: pointer;
    transition: all .3s;
    position: relative;
    font-weight: 300
}
.unit_other .module4-bth:hover{
    background: #f2edea
}
.unit_other .module4-bth::after{
    position: absolute;
    height: 2px;
    width: 100%;
    content: '';
    display: block;
    left: 0;
    bottom: 0;
    transition: all .5s;
    background-color: #471a14;
    transform: scale(0,1);
}
.unit_other .module4-bth:hover::after {
    transform: scale(1,1);
}



@media (max-width: 767px){
    .unit_other_t{
        position: absolute;
        height: 100%;
        top: 0;
        transform: translateX(-50%);
        right: auto;
        left: 50%;
        z-index: 1;
        width: auto;
        white-space: nowrap;
        padding: 1.5rem 0;
    }
    .unit_other .module4-bth{
        position: absolute;
        bottom: 1.5rem;
        left: 50%;
        transform: translateX(-50%);
        height: 0.77rem;
        width: 4.2rem;
    }
    .unit_other_t1{
        font-size: 0.34rem;
    }
    .unit_other_t2{
        font-size: 0.6rem;
        line-height: 1.4em;
    }
    .unit_other .module4-bth{
        font-size: 0.25rem;
    }
}