body{
    background: #1B1B1B;
}
.track_header{
    position: relative;
    width: 100%;
    height: 2000px;
}
.header_banner_container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}
.header_banner_container .header_video{
    position: absolute;
    /* 利用 4向为0 + margin:auto 实现完美居中，避免在 transform 里写 translate 干扰 GSAP */
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    
    width: 100%;
    height: 80vh;               /* 初始高度 80vh */
    transform: scale(0.45);     /* 初始缩小 0.45 */
    transform-origin: center center;
    border-radius: 20px;        /* 初始圆角（可选，看起来更像卡片） */
    
    object-fit: cover;
    filter: brightness(0.5);
}
.header_banner_container .header_text{
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    bottom: 11%;
    left: 50%;
    transform: translateX(-50%);
}
.header_banner_container .header_text .p_1{
    font-size: 0.94vw;
    font-family: none;
    color: #EEEEEE;
    margin-bottom: 3vh;
    line-height: 1;
}
.header_banner_container .header_text .p_2{
    font-weight: bold;
    font-size: 2.5vw;
    color: #EEEEEE;
    line-height: 1.125;
    font-family: none;
}
.header_banner_container .header_text .d_1{
    font-size: 0.94vw;
    color: #E6E6E6;
    padding: 0.729vw 1.667vw;
    line-height: 1;
    border: 1px solid #E6E6E6;
    border-radius: 0.5vw;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 3vh;
    transition: color .4s,background-color .4s,border .4s;
}
.header_banner_container .header_text .d_1 span{
    font-family: none;
}
.header_banner_container .header_text .d_1 .s_1{
    margin-right: 0.885vw;
}
.header_banner_container .header_text .d_1 .gsticon-you{
    transform: rotate(90deg);
}
.header_banner_container .header_text .d_1:hover{
    background-color: #D6010E;
    color: #1B1B1B;
    border: 1px solid #D6010E;
}
.introduction_container{
    background-color: #1B1B1B;
    padding: 13.163vh 13% 0;
    display: flex;
}
.introduction_container .question_answer_container{

}
.introduction_container .question_answer_container .question{
    color: #EEEEEE;
    font-weight: bold;
    font-size: 3.125vw;
    font-family: none;
    margin-bottom: 2.5vw;
}
.introduction_container .question_answer_container .answer{
    display: flex;
    width: 87%;
}
.introduction_container .question_answer_container .answer .gsticon{
    color: #D6010E;
    font-size: 0.94vw;
    font-weight: bold;
    line-height: 3;
    margin-right: 1vw;
}
.introduction_container .question_answer_container .answer .text{
    font-size: 1.563vw;
    font-family: none;
    font-weight: bold;
    color: #EEEEEE;
    line-height: 1.8;
}
.introduction_container .timer_container{
    font-size: 11vw;
    font-weight: bold;
    line-height: 1;
    text-align: end;
}
.introduction_container .timer_container .p_1{
    /* 径向渐变设置：圆心位于右下角 (bottom right)，从内向外扩散 */
    background: radial-gradient(circle at bottom right, #631116, #D6010E);
    
    /* 将背景裁剪至文本，并使文字颜色透明以显示背景 */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;

    /* 兼容不支持 background-clip 的旧版浏览器的回退颜色 */
    color: #D6010E; 
}
.introduction_container .timer_container .p_2{
    /* 径向渐变设置：圆心位于右下角 (bottom right)，从内向外扩散 */
    background: radial-gradient(circle at bottom right, #32181A, #D6010E);
    
    /* 将背景裁剪至文本，并使文字颜色透明以显示背景 */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;

    /* 兼容不支持 background-clip 的旧版浏览器的回退颜色 */
    color: #D6010E; 
}
.webgl_main_container{
    position: relative;
    width: 100%;
    height: 100vh;
    /* 1. 正常的暗红径向渐变背景 */
    background: radial-gradient(130% 100% at 46% 64%, 
        #702320 0%, 
        #1B1B1B 50%
    );

    /* 2. 使用遮罩控制上下边缘透明 */
    /* 这里的 black 代表完全显示，transparent 代表完全透明 */
    -webkit-mask-image: linear-gradient(to bottom, 
        transparent 0%, 
        black 15%, 
        black 60%, 
        transparent 100%
    );
    mask-image: linear-gradient(to bottom, 
        transparent 0%, 
        black 15%, 
        black 60%, 
        transparent 100%
    );

}
.webgl_main_container #webgl_container{
    position: absolute;
    z-index: 2;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}
.webgl_main_container #webgl_container canvas{
    position: relative;
    z-index: 5;
    cursor: grab;
}
.webgl_main_container #webgl_container canvas:active{
    cursor: grabbing;
}
#earth-html-overlay-1{
    box-shadow: 1.6vh -1.4vh 1.816vh -1.473vh #7E2A26,-1.6vh 1.4vh 1.816vh -1.473vh #7E2A26 inset;
}
#earth-html-overlay-2{
    background: #1D1C1C; /* 降级备用背景色 */
    background: -webkit-radial-gradient(circle, #2f0000, #000);
    background: radial-gradient(circle, #2f0000, #000);
    box-shadow: -4vh 0vh 10vh -1.5vh #7E2A26 inset;
}
.webgl_main_container .data_list_panel{
    position: absolute;
    z-index: 2;
    width: 45%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    top: 30%;
    right: 10%;
}
/* 1. 外层 .item：作为稳定且不可见的“鼠标感应区” */
.webgl_main_container .data_list_panel .item {
    position: relative;
    width: 48.3%;
    margin-bottom: 1.406vw;
    /* 关键：给外层加上 3D 镜头，这样内层的透视感更真实 */
    perspective: 1000px; 
    cursor: pointer;
    /* 注意：原有的 padding, background, flex 布局都移走了 */
}

/* 2. 内层 .item_2：承载所有视觉表现和 3D 旋转 */
.webgl_main_container .data_list_panel .item .item_2 {
    position: relative;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 0.5vw;
    padding: 2.865vw 2.396vw;
    box-sizing: border-box;
    
    /* 开启 3D 空间 */
    transform-style: preserve-3d;
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

/* 3. 悬浮效果：鼠标碰外层 .item 时，改变内层 .item_2 的样式 */
.webgl_main_container .data_list_panel .item:hover .item_2 {
    background-color: rgba(0, 0, 0, 0.5);
    box-shadow: 0 1vw 2vw rgba(0, 0, 0, 0.4);
}

/* 4. 内部文字/图标稍微凸起（增强下陷时的落差感） */
.webgl_main_container .data_list_panel .item .item_2 .gsticon,
.webgl_main_container .data_list_panel .item .item_2 .right {
    transform: translateZ(30px); /* 让文字浮空 30px */
    pointer-events: none; /* 防止鼠标干扰 */
}
.webgl_main_container .data_list_panel .item .gsticon{
    color: #ddd;
    font-size: 2.5vw;
}
.webgl_main_container .data_list_panel .item .right{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 75%;
}
.webgl_main_container .data_list_panel .item .p_1{
    font-weight: bold;
    color: #D6010E;
    line-height: 1.125;
    margin-bottom: 1vw;
}
.webgl_main_container .data_list_panel .item .p_1 .number{
    font-size: 2.5vw;
    font-family: none;
}
.webgl_main_container .data_list_panel .item .p_1 .unit{
    font-size: 1.25vw;
    font-family: none;
}
.webgl_main_container .data_list_panel .item .p_2{
    color: #BFBFBF;
    font-size: 1.25vw;
    font-family: none;
    line-height: 1.25;
}
.history_container{
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.history_container .title_btn{
    position: relative;
    width: 72.4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.history_container .title_btn .title{
    color: #EEEEEE;
    font-weight: bold;
    font-family: none;
    font-size: 3.125vw;
}
.history_container .switch_btn{
    display: flex;
    justify-content: center;
    align-items: center;
}
.history_container .switch_btn>div{
    width: 2.6vw;
    height: 2.6vw;
    border-radius: 0.5vw;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
.history_container .switch_btn>div .gsticon{
    font-size: 0.885vw;
}
.history_container .switch_btn .prev{
    background: #272727;
    margin-right: 0.885vw;
    transition: background .3s;
}
.history_container .switch_btn .prev:hover{
    background: #D6020F;
}
.history_container .switch_btn .prev .gsticon{
    transform: rotate(180deg);
}
.history_container .switch_btn .next{
    background: #272727;
    transition: background .3s;
}
.history_container .switch_btn .next:hover{
    background: #D6020F;
}

.history_container .main_swiper{
    position: relative;
    width: 100%;
    box-sizing: border-box;

    -webkit-mask-image: linear-gradient(to right, 
        transparent 0%, 
        black 15%, 
        black 85%,
        transparent 100%
    );
    mask-image: linear-gradient(to right, 
        transparent 0%, 
        black 15%, 
        black 85%,
        transparent 100%
    );

}
.history_container .main_swiper .swiper {
    position: relative;
    width: 100%;
    height: 33vw;
}  
.history_container .main_swiper .swiper .item{
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-sizing: border-box;
    padding: 7.031vw 12.135vw 3.281vw 14.583vw;
}
.history_container .main_swiper .swiper .item .item_text{
    position: relative;
    z-index: 2;
    width: 40%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.history_container .main_swiper .swiper .item .item_text .time{
    color: #eee;
    font-size: 1.563vw;
    font-weight: bold;
    font-family: none;
}
.history_container .main_swiper .swiper .item .item_text .title{
    position: relative;
    margin: 1.563vw 0 2.917vw;
}
.history_container .main_swiper .swiper .item .item_text .title .gsticon{
    position: absolute;
    top: 0;
    left: -0.885vw;
    transform: translateX(-100%);
    color: #D2020E;
    line-height: 2.5;
    font-size: 0.885vw;
    font-weight: bold;
}
.history_container .main_swiper .swiper .item .item_text .title .main_title{
    color: #eee;
    font-size: 1.563vw;
    font-weight: bold;
    font-family: none;
}
.history_container .main_swiper .swiper .item .item_text .content{
    color: #C9C9C9;
    font-size: 1.1vw;
    font-family: none;
}
.history_container .main_swiper .swiper .item .item_image{
    position: absolute;
    top: 0;
    right: 0;
    width: 58%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.history_container .main_swiper .swiper .item .item_image .parallax_container{
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}
.history_container .main_swiper .swiper .item .item_image .book_img {
    position: absolute;
    width: 25vw;
    height: 12vw;          /* 图片在容器中的宽度比例 */
    background-color: #C9C9C9;
    border-radius: 0.5vw;
    left: 0;
    bottom: 0;           /* 以左下角为定位基准 */
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    transform-origin: center center;
    pointer-events: auto;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}
.history_container .main_swiper .swiper .item .item_image .book_img a{
    display: block;
    width: 100%;
    height: 100%;
}
.history_container .main_swiper .swiper .item .item_image img{
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: scale 1s;
    pointer-events: all;
}
.history_container .main_swiper .swiper .item .item_image img:hover{
    scale: 1.05;
}

.history_container .sub_swiper {
    position: relative;
    width: 100%;
    box-sizing: border-box;
    margin-top: 2.6vw;
    -webkit-mask-image: linear-gradient(to right, 
        transparent 5%, 
        black 15%, 
        black 85%,
        transparent 95%
    );
    mask-image: linear-gradient(to right, 
        transparent 5%, 
        black 15%, 
        black 85%,
        transparent 95%
    );
}
.history_container .sub_swiper .swiper {
    width: 100%;
    height: 3vw;
}  
.history_container .sub_swiper .swiper-slide{
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}
.history_container .sub_swiper .swiper .timer{
    position: relative;
    font-size: 1.25vw;
    color: #535353;
    font-weight: bold;
    font-family: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: color .5s;
}
.history_container .sub_swiper .swiper .swiper-slide:hover .timer{
    color: #888;
}
.history_container .sub_swiper .swiper .swiper-slide:hover .timer::after{
    width: 50%;
}
.history_container .sub_swiper .swiper .timer::after{
    content: "";
    position: relative;
    width: 0%;
    height: 2px;
    background: #D6010E;
    margin-top: 4px;
    transition: width .5s;
}

/* 改为使用自定义激活类 */
.history_container .sub_swiper .swiper-slide.custom-active .timer{
    color: #EEEEEE !important;
}
.history_container .sub_swiper .swiper-slide.custom-active .timer::after{
    width: 110% !important;
}


.facility_container{
    position: relative;
    width: 100%;
    margin-top: 14.583vw;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.facility_container .title_btn{
    position: relative;
    width: 72.4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.facility_container .title_btn .title{
    color: #EEEEEE;
    font-weight: bold;
    font-family: none;
    font-size: 3.125vw;
}
.facility_container .switch_btn{
    display: flex;
    justify-content: center;
    align-items: center;
}
.facility_container .switch_btn>div{
    width: 2.6vw;
    height: 2.6vw;
    border-radius: 0.5vw;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}
.facility_container .switch_btn>div .gsticon{
    font-size: 0.885vw;
}
.facility_container .switch_btn .prev{
    background: #272727;
    margin-right: 0.885vw;
    transition: background .3s;
}
.facility_container .switch_btn .prev:hover{
    background: #D6020F;
}
.facility_container .switch_btn .prev .gsticon{
    transform: rotate(180deg);
}
.facility_container .switch_btn .next{
    background: #272727;
    transition: background .3s;
}
.facility_container .switch_btn .next:hover{
    background: #D6020F;
}
.facility_container .facility_swiper_container{
    position: relative;
    width: 100%;
    height: 22.4vw;
    margin-top: 7.865vw;
}
.facility_container .facility_swiper_container .swiper{
    width: 100%;
    height: 100%;
    box-sizing: border-box; 
}
/* 确保包裹器和滑块在 padding 区域内可见 */
.facility_container .facility_swiper_container .swiper-wrapper {
    /* 避免因为父级 padding 导致宽度计算被压缩 */
    width: 100%; 
}
.facility_container .facility_swiper_container .swiper .img_container{
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 0.5vw;
}
.facility_container .facility_swiper_container .swiper .img_container img{
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: scale 1s;
}
.facility_container .facility_swiper_container .swiper .img_container:hover img{
    scale: 1.05;
}

.down_track_container {
    position: relative;
    width: 100%;
    height: 2500px;
    background-color: #1B1B1B;
}
.down_track_container .font_animate_container {
    position: relative;
    width: 100%;
    height: 100vh;
}
.down_track_container .font_animate_container .img_main,
.down_track_container .font_animate_container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

/* SVG 遮罩层样式 */
.font_animate_container .svg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none; /* 让鼠标事件穿透 */
}

.logo-svg-wrap {
    overflow: visible; /* 保证缩放时不被剪裁 */
}

@media (max-width: 996px) {
    /* .header_banner_container{
        height: auto;
    }
    .header_banner_container .header_video{
        position: relative;
    } */
    .track_header{
        height: 150vh;
    }
    .header_banner_container .header_text .p_1{
        font-size: 3.6vw;
    }
    .header_banner_container .header_text .p_2{
        font-size: 8.2vw;
        white-space: nowrap;
    }
    .header_banner_container .header_text .d_1{
        padding: 3.6vw 6vw;
        border-radius: 1vw;
    }
    .header_banner_container .header_text .d_1 .s_1{
        font-size: 3.6vw;
        margin-right: 4.6vw;
    }
    .header_banner_container .header_text .d_1 .gsticon-you{
        font-size: 3vw;
    }
    .introduction_container{
        flex-direction: column;
    }
    .introduction_container .question_answer_container{
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .introduction_container .question_answer_container .question{
        font-size: 8.2vw;
        text-align: center;
    }
    .introduction_container .question_answer_container .answer{
        flex-direction: column;
        align-items: center;
    }
    .introduction_container .question_answer_container .answer .gsticon{
        margin: 0;
        font-size: 2.8vw;
        transform: rotate(90deg);
    }
    .introduction_container .question_answer_container .answer .text{
        font-size: 3.6vw;
        color: #BFBFBF;
        font-weight: 400;
        text-align: center;
    }
    .introduction_container .timer_container{
        font-size: 20vw;
        margin-top: 10vw;
    }
    .introduction_container .timer_container .p_1{
        text-align: center;
    }
    .introduction_container .timer_container .p_2{
        text-align: center;
    }
    .webgl_main_container{
        height: 110vw;
        mask-image: none;
        -webkit-mask-image: none;
        background: none;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .webgl_main_container #webgl_container{
        height: 110vw;
        pointer-events: none;
        background: radial-gradient(130% 120% at 46% 64%, #810500 0%, #1B1B1B 50%);
        /* 2. 使用遮罩控制上下边缘透明 */
        /* 这里的 black 代表完全显示，transparent 代表完全透明 */
        -webkit-mask-image: linear-gradient(to bottom, 
            transparent 0%, 
            black 15%, 
            black 60%, 
            transparent 100%
        );
        mask-image: linear-gradient(to bottom,
            transparent 0%, 
            black 15%, 
            black 60%, 
            transparent 100%
        );
    }
    .webgl_main_container .data_list_panel{
        width: 80%;
        top: auto;
        bottom: auto;
        left: auto;
        right: auto;
    }

    .webgl_main_container .data_list_panel .item{
        width: 47.5%;
        flex-direction: column;
        border-radius: 1vw;
        margin: 2.18vw 0;
        padding: 0;
        background-color: transparent;
    }
    /* 视觉样式给内层 */
    .webgl_main_container .data_list_panel .item .item_2 {
        flex-direction: column;
        padding: 5.128vw 2.3vw;
        border-radius: 1vw;
        background-color: rgba(0, 0, 0, 0.4);
    }
    .webgl_main_container .data_list_panel .item .gsticon{
        font-size: 5.5vw;
    }
    .webgl_main_container .data_list_panel .item .p_1{
        margin-top: 1.5vw;
        margin-bottom: 1.5vw;
    }
    .webgl_main_container .data_list_panel .item .p_1 .number{
        font-size: 5.385vw;
    }
    .webgl_main_container .data_list_panel .item .p_1 .unit{
        font-size: 3vw;
    }
    .webgl_main_container .data_list_panel .item .p_2{
        font-size: 3.6vw;
    }
    #earth-html-overlay-1{
        box-shadow: 1.6vh -1.4vh 1.816vh -1.473vh #810500, -1.6vh 1.4vh 1.816vh -1.473vh #810500 inset;
    }
    #earth-html-overlay-2{
        background: -webkit-radial-gradient(circle, #080202, #000);
        background: radial-gradient(circle, #080202, #000);
        box-shadow: -4vh 0vh 10vh -1.5vh #810500 inset;
    }
    .history_container .title_btn{
        justify-content: center;
    }
    .history_container .title_btn .title{
        font-size: 8.2vw;
    }
    .history_container .main_swiper{
        margin-top: 8vw;
        -webkit-mask-image: linear-gradient(to right, 
            transparent 0%, 
            black 5%, 
            black 95%,
            transparent 100%
        );
        mask-image: linear-gradient(to right, 
            transparent 0%, 
            black 5%, 
            black 95%,
            transparent 100%
        );
    }
    .history_container .main_swiper .swiper .item .item_text .time{
        font-size: 4.1vw;
    }
    .history_container .main_swiper .swiper .item .item_text .title{
        margin: 5.6vw 0;
    }
    .history_container .main_swiper .swiper .item .item_text .title .gsticon{
        position: absolute;
        left: -3vw;
        font-size: 3vw;
        line-height: 1.9;
    }
    .history_container .main_swiper .swiper .item .item_text .title .main_title{
        font-size: 4.1vw;
    }
    .history_container .main_swiper .swiper .item .item_text .content{
        font-size: 3.6vw;
    }
    
    /* 1. 主轮播容器高度适配上下结构 */
    .history_container .main_swiper .swiper {
        height: 120vw; /* 预留给上方图片和下方文字足够的空间 */
    }

    .history_container .main_swiper .swiper .item {
        flex-direction: column;
        justify-content: flex-start;
        padding: 0 10vw;
    }

    /* 2. 图片容器置于上方 */
    .history_container .main_swiper .swiper .item .item_image {
        order: 1;
        position: relative;
        width: 100%;
        max-width: 100%;
        height: 65vw; /* 上方图片区域高度 */
        margin-bottom: 5vw;
    }

    /* 3. 视差包裹层撑满图片区域 */
    .history_container .main_swiper .swiper .item .item_image .parallax_container {
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        pointer-events: none;
    }

    /* 4. 移动端单张卡片尺寸 */
    .history_container .main_swiper .swiper .item .item_image .book_img {
        position: absolute;
        width: 50vw;
        height: 24vw;
        border-radius: 1.5vw;
    }

    /* 5. 文字容器置于下方 */
    .history_container .main_swiper .swiper .item .item_text {
        order: 2;
        width: 100%;
        height: auto;
        justify-content: flex-start;
    }



    .history_container .sub_swiper{
        display: flex;
        justify-content: center;
        align-items: center;
        mask-image: none;
        -webkit-mask-image: none;
        margin-top: 7.1vw;
    }
    .history_container .sub_swiper .swiper{
        width: 70%;
        height: 11vw;
        margin: 0;
    }
    .history_container .sub_swiper .swiper .timer{
        font-size: 4.1vw;
    }
    .history_container .sub_swiper .mobile_switch_btn{
        width: 8vw;
        height: 8vw;
        border-radius: 1vw;
        color: #fff;
        display: flex !important;
        justify-content: center;
        align-items: center;
        cursor: pointer;
        background-color: #272727;
    }
    .history_container .sub_swiper .mobile_switch_btn .gsticon{
        font-size: 3.2vw;
    }
    .history_container .sub_swiper .prev .gsticon{
        transform: rotate(180deg);
    }
    .history_container .sub_swiper .next{
        background: #790E15;
    }
    .facility_container{
        margin-top: 28vw;
    }
    .facility_container .title_btn{
        justify-content: center;
    }
    .facility_container .title_btn .title{
        font-size: 8.2vw;
    }
    .facility_container .facility_swiper_container{
        height: 56vw;
        margin-top: 9.5vw;
    }
    .down_track_container{
        height: 150vh;
    }
    /* === 移动端视频封面层 === */
    .mobile_video_poster {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        margin: auto;
        
        width: 100%;
        height: 80vh;               /* 移动端初始高度 */
        transform: scale(0.45);     /* 移动端初始缩小 */
        transform-origin: center center;
        border-radius: 20px;        /* 初始圆角 */
        
        z-index: 2;
        display: flex !important;
        justify-content: center;
        align-items: center;
        background-color: #1B1B1B;
        transition: opacity 0.5s ease, visibility 0.5s ease;
    }

    /* 播放成功后隐藏整个封面 */
    .mobile_video_poster.is_playing {
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
    }

    .mobile_video_poster .poster_img {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        object-fit: cover;
        filter: brightness(0.5); 
    }

    /* 纯 CSS 播放按钮（默认处于隐藏状态） */
    .mobile_video_poster .play_btn {
        position: relative;
        z-index: 3;
        width: 16vw;
        height: 16vw;
        background-color: rgba(214, 1, 14, 0.9);
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
        cursor: pointer;
        
        /* 默认隐藏属性 */
        opacity: 0;
        transform: scale(0.5);
        pointer-events: none;
        transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }

    /* JS 检测失败时，添加 .show 类名让按钮弹出来并执行呼吸动画 */
    .mobile_video_poster .play_btn.show {
        opacity: 1;
        transform: scale(1);
        pointer-events: auto;
        animation: playPulse 2s infinite 0.4s; /* 延迟 0.4 秒等弹出动画结束再开始呼吸 */
    }

    .mobile_video_poster .play_btn::after {
        content: "";
        display: block;
        margin-left: 1.5vw;
        border-style: solid;
        border-width: 3vw 0 3vw 5vw;
        border-color: transparent transparent transparent #ffffff;
    }

    .header_banner_container .header_text {
        z-index: 5;
    }

    @keyframes playPulse {
        0% { box-shadow: 0 0 0 0 rgba(214, 1, 14, 0.7); }
        70% { box-shadow: 0 0 0 4vw rgba(214, 1, 14, 0); }
        100% { box-shadow: 0 0 0 0 rgba(214, 1, 14, 0); }
    }
}