@font-face {
    font-family: 'AlibabaSans-Regular';
    src: url('../fonts/AlibabaSans-Regular.eot'); /* IE9 Compat Modes */
    src: url('../fonts/AlibabaSans-Regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
    url('../fonts/AlibabaSans-Regular.woff2') format('woff2'), /* Super Modern Browsers */
    url('../fonts/AlibabaSans-Regular.woff') format('woff'), /* Pretty Modern Browsers */
    url('../fonts/AlibabaSans-Regular.ttf')  format('truetype'); /* Safari, Android, iOS */
}
body{
    font-weight: normal;
    font-size: 16px;
    line-height: 24px;
    font-family: "AlibabaSans-Regular","Microsoft YaHei",Arial,sans-serif;
    letter-spacing: 1px;
}
.a1{
    background: url("../img/b1.jpg") top center no-repeat;
    background-size: cover;
    height: 1000px;
    /*background-position: top 500px center;*/
    
}
.a4{
    background: url("../img/b4.jpg") top center no-repeat;
    background-size: cover;
    padding: 200px 0;
}
.a2{
    padding: 50px 0;
}
.a3{
    background: #F4F4F4;
    padding: 150px 0;
}
.a5{
    position: relative;
    background: url("../img/b11.webp") top center no-repeat;
    background-size: cover;
    padding: 160px 0;
}
.a5::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 50% 透明黑色遮罩 */
    z-index: 0; /* 确保遮罩在背景图上方 */
}
.a6{
    padding: 50px 0;
    background-color: #000;
}
.color_white{
    color: #fff;
}
.color_red{
    color: red;
}
.color_green{
    color: #8ECA4E;
}
.a7{
    padding: 150px 0;
    background: #F4F4F4;
}

.a7_div p{
   background-color: red;
    padding: 20px 0;
    color: #fff;
    margin: 0;
}
.a7_div ul {
    padding: 30px 30px 30px 40px;
    background-color: #fff;
    min-height: 240px;
}
.a7_div ul li{
    list-style-type: circle;
    padding: 5px 0;
}
.a8{
    background: #000;
    /*padding: 50px;*/
}
.a81{
   padding: 120px 0;
    color: #ffffff;
    background: #F4F4F4;
}
.a81 .col-md-6{
    padding: 10px;
}
.a81 .col-md-6 .card-img-overlay{
    background: rgba(0,0,0,.6);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.a81 .col-md-6:hover .card-img-overlay {
    opacity: 1;
}
.a9{
    padding: 100px 0;
    background: #F4F4F4;
}
.a9_div{
    padding: 20px 10px;
    background-color: #fff;
}
.a9_div h5{
    font-size: 1rem;
}
.a9_div p,.a10_div p{
    padding-top: 10px;
    font-size: 0.875rem;
    color: #666;
}
.a10{
    padding: 150px 0;
}
.a10 img{
    min-height: 100px;
}
.a11{
    padding: 100px 0;
    background-color: #222;
}
.a11 td,.a11 th{
    color: #fff;
    vertical-align:middle;
    text-align:center;
}
.a11 .table-bordered td,.a11 .table-bordered th {
    border: 1px solid rgba(95,107,124,.6);
    padding: 1rem;
}
.a12 a{
    color: #333;
}
.a12 a:hover{
    color: red;
}
.c2{
    background: #eee;
    padding: 10px 0;
}
.c2 a{
    color: #333;
}
.c2 a:hover{
    color: red;
}
.b1{
    padding: 100px 0;
}
.b1 .swiper-slide{
    /*padding:30px;*/
}
.b1 .swiper-slide img{
    padding:30px;
    background: #F4F4F4;
}
.b1_div{
    background: #F4F4F4;
    padding: 30px;
}
.b1_div p{
    background: #F4F4F4;
    padding: 10px;
    font-size: 0.875rem;
    color: #666;
}
.swiper-button-next, .swiper-container-rtl .swiper-button-prev {
    right: 0;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20viewBox%3D'0%200%2027%2044'%3E%3Cpath%20d%3D'M27%2C22L27%2C22L5%2C44l-2.1-2.1L22.8%2C22L2.9%2C2.1L5%2C0L27%2C22L27%2C22z'%20fill%3D'%23666666'%2F%3E%3C%2Fsvg%3E");
}
.swiper-button-prev, .swiper-container-rtl .swiper-button-next {
    left: 0;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20viewBox%3D'0%200%2027%2044'%3E%3Cpath%20d%3D'M0%2C22L22%2C0l2.1%2C2.1L4.2%2C22l19.9%2C19.9L22%2C44L0%2C22L0%2C22L0%2C22z'%20fill%3D'%23666666'%2F%3E%3C%2Fsvg%3E");
}
.swiper-button-next, .swiper-button-prev {
    width: 25px;
    height: 40px;
    background-size: 25px 40px;
}
.img_a1{
    position: absolute;
    top: 50px;
    left: 100px;
}
.mt-60{
    margin-top: 60px
}
.mt-80{
    margin-top: 80px
}
.timeline__content p {
    font-size: 0.875rem;
    line-height: 1.2;
}
.video{
    width: 100%;
    height: 800px;
}
.a1 h1{
    font-size: 4rem;
}
@media only screen and (max-width: 767px) {
    .video{
        width: 100%;
        height: 300px;
    }
    .a8 {
        background: #F4F4F4;
        height: 400px;
         padding: 0;
    }
    h1,h2,.a1 h1{
        font-size: 1.725rem;
    }

}
.image-container {
    position: relative;  /* 关键：创建定位基准 */
    display: inline-block; /* 使容器适应图片大小 */
}
.image-container .text-overlay {
    position: absolute;  /* 绝对定位 */
    top: 10px;           /* 距父容器顶部距离 */
    right: 10px;         /* 距父容器左侧距离 */
    color: white;       /* 文字颜色 */
    font-size: 16px;
    background-color: rgba(0, 0, 0, 0.5); /* 可选：半透明背景提升可读性 */
    padding: 5px;
    z-index: 1;         /* 确保文字在图片上方 */
}