/*banner背景图片动画*/
@-webkit-keyframes scale-bg{
	from{
		-webkit-transform:scale(1.2);
		transform:scale(1.2);
	}
	to{
		-webkit-transform:scale(1);
		transform:scale(1);
	}
}
@keyframes scale-bg{
	from{
		-webkit-transform:scale(1.2);
		transform:scale(1.2);
	}
	to{
		-webkit-transform:scale(1);
		transform:scale(1);
	}
}

/* 第一页h1的元素 */
.section1_h1 {
    color: #ffffff;
    font-size: 70px;
    letter-spacing: 5px;
    text-align: center; /* 添加文本居中对齐 */
}

/* 第一页h2的元素 */
.section1_h2 {
	color: #7489da;
    font-size: 25px;
    text-align: center; /* 添加文本居中对齐 */
    margin-top: 30px; /* 控制h2元素与h1元素之间的垂直间距 */
}

/* 按钮动态元素 */
.main {
    margin-top: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative; /* 添加相对定位 */
    z-index: 2; /* 提高按钮层级 */
}
.btn {
    width: 160px;
    height: 55px;
    font-size: 18px;
    background: #fff;
    border: none;
    border-radius: 50px;
    color: #000;
    outline: none;
    cursor: pointer;
    transition: all 0.4s;
    position: relative; /* 添加相对定位 */
    z-index: 3; /* 确保按钮在最上层 */
}
.btn:hover {
	box-shadow: 
				inset 0 0 0 3px #06d6a0,
				inset 0 0 0 5px #118ab2;
	background: #073b4c;
	color: #fff;
}


/*banner */
.index_main{
	background: #f7f7f7;
}
.index_main .section1{
	width: 100%;
	height: 100vh;
	position: relative;
	overflow: hidden;
	background: #000; /* 默认黑色背景 */
}

.index_main .section2 {
    width: 100%;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background: #71c9ce; /* 修改为所需的背景色 */
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}


.index_main .section2 h3{
	color: #000000;
}
.index_main .section3{
	width: 100%;
	height: 100%;
	background: linear-gradient(to bottom, #d6e6f2, #769fcd); /* 渐变色背景 */
}
.index_main .section3 h3{
	text-align: center;
}

/* 视频容器 */
.video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* 视频样式 */
.video-container video {
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

/* 毛玻璃效果遮罩 */
.glass-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1;
}
/* 内容层 */
.section1 .container {
    position: relative;
    z-index: 2;
}

/* 修改时间轴容器样式 */
.timeline-container {
    background-color: #a6e3e9;
    border-radius: 20px;
    padding: 20px 30px;
    width: 90%;
    max-width: 1400px;
    height: 85vh; /* 调整高度比例 */
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 修改标题样式 */
.timeline-container h2 {
    text-align: center;
    color: #000;
    margin: 15px 0;
    font-size: 28px;
    padding: 10px 0;
    background-color: transparent;
}

.timeline-container .subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 20px;
}

.timeline {
    position: relative;
    padding-left: 50px;
    width: 100%;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #4a90e2;
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
}

.timeline-icon {
    position: absolute;
    left: -46px;
    top: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #4a90e2;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
}

.timeline-content {
    background: white;
    border-radius: 5px;
    padding: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    margin-bottom: 5px;
    color: #333;
}

.timeline-content time {
    display: block;
    font-size: 0.8em;
    color: #777;
    margin-bottom: 10px;
}

.timeline-content p {
    color: #555;
}


.circle-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 20vh; /* 修改为20vh，让出空间给按钮 */
}

.circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 20px; /* 添加左右间距 */
}

.circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.text-container {
    text-align: center;
    margin-top: 20px;
    color: #ffffff; /* 设置文字颜色为白色 */
}

.text-container p {
    color: #ffffff; /* 确保段落文字也是白色 */
    font-size: 16px;
}

@media only screen and (max-width: 1600px){
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 28px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 60px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 20px;
	}
}
@media only screen and (max-width: 1440px){
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 24px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 40px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 18px;
		margin-top: 5px;
	}
}
@media only screen and (max-width: 1366px){
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 20px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 26px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 16px;
	}
	.index_main .section1 .index_banner .slick-arrow{
		background-size: auto 30px;
	}
}
@media only screen and (max-width: 1300px){

}
@media only screen and (max-width: 1199px){
	.index_main .section1 .index_banner .item .inner .block_txt h4{
		font-size: 18px;
	}
	.index_main .section1 .index_banner .item .inner .block_txt h2{
		font-size: 22px;
		}
	.index_main .section1 .index_banner .item .inner .block_txt h3{
		font-size: 14px;
	}
}
@media only screen and (max-width: 992px){
	.index_main .section1 .index_banner .item{
		height: 100vh;
	}
	.index_main .section1 .index_banner .item .inner .block_txt{
		left: 0;
		right:0;
		margin: 0 auto;
		padding: 0 20px;
		top: 42%;
	}
	.index_main .section1 .index_banner .slick-arrow{
		display: none !important;
	}
    .index_main .section1 .index_banner .slick-dots{
    	position: absolute;
    	bottom: 12px;
    }
    .index_main .section1 .index_banner .slick-dots li{
    	width: 12px;
    	height: 12px;
    	border-radius: 50%;
    	border:2px solid #fff;
    }
    .index_main .section1 .index_banner .slick-dots li button{
    	display: none;
    }
    .index_main .section1 .index_banner .slick-dots li.slick-active{
    	background: #fff;
    }
	.index_main .section1 .number{
		bottom: 12%;
		display: none;
	}
	.index_main .section1 .number span{
		margin-right: 22px;
	}
	.index_main .section1 .number span:after{
		bottom: -14px;
	}

}
@media only screen and (max-width: 767px){
    .timeline-container {
        padding: 15px;
        width: 95%;
        height: 80vh;
        margin: 10px auto;
    }

    .timeline-container h2 {
        font-size: 24px;
        padding: 8px 0;
        margin: 10px 0;
    }

    .timeline {
        padding-left: 30px;
    }

    .timeline::before {
        left: 15px;
    }

    .timeline-icon {
        left: -30px;
        width: 30px;
        height: 30px;
        font-size: 12px;
    }

    .timeline-content {
        padding: 10px;
    }

    .timeline-content h3 {
        font-size: 16px;
    }

    .timeline-content time {
        font-size: 12px;
    }

    .timeline-content p {
        font-size: 14px;
    }

    .timeline-container h2 {
        font-size: 20px;
    }

    .timeline-container .subtitle {
        font-size: 14px;
    }
}

@media only screen and (max-width: 480px){
    .timeline-container {
        padding: 10px;
        height: 75vh;
    }

    .timeline-container h2 {
        font-size: 20px;
        padding: 5px 0;
    }
}

@media only screen and (max-width: 340px){
 
}
@media only screen and (max-width: 320px){
	
}