* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            padding: 40px 20px;
            background: #f5f5f5;
            font-family: sans-serif;
            overflow-x: hidden;
        }

        .main-title {
            font-size: 80px;
            font-weight: 700;
            color: #222;
            text-align: center;
margin-top: 20px;
color: #cb451b;

border-top: 1px solid #CB451B;

        }


.main-title-2 {
    text-align: center;
    font-size: 45px;
font-weight: bold;
color: #cb451b;
}

        .slider-container {
            position: relative;
width:100%;
            margin: 0 auto;

/*overflow: hidden;  新增 */
        }

        .video-track {

            display: flex;
            gap: 16px;
            transition: transform 0.4s ease;
            user-select: none;
            -webkit-user-select: none;
        }

        .video-wrap {
 /* flex: 0 0 20%;   */
flex: 0 0 auto;
display: flex;
justify-content: center;
flex-direction: column;
align-items: center;
        }

        .video-title {
            font-size: 22px;
            font-weight: 600;
            text-align: center;
            color: #CB451B;
            margin-bottom: 12px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
 /*display: none;  */

        }




        .video-item {
            position: relative;
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            /* 兜底默认布局，防止全屏后错乱 */
            width: 100%;
    /* 以下是新增 */
    display: flex;
    align-items: center;    /* 垂直上下居中 */
    justify-content: center;/* 水平左右居中 */
    height: 700px;          /* 给容器固定高度，让垂直居中生效 */
        }

        .video-item video {
 height: 100%;  /* 新增：让视频撑满父容器高度，配合居中 */
            display: block;
            pointer-events: none;
            user-select: none;
            -webkit-user-select: none;
            object-fit: contain;
width: 100%;
                height: 100%;
        }

        .video-item.fullscreen {
            width: 100vw;
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #000;
            border-radius: 0;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 9999;
        }
        .video-item.fullscreen video {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }

        .play-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(255,255,255,0.3);
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 15;
            transition: all 0.3s ease;
            pointer-events: none;
        }
        .play-icon svg {
            width: 30px;
            height: 30px;
            fill: #fff;
        }

/* ========== 加载中显示 ========== */
.loading-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 20;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 12px;
    pointer-events: none;
}
.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.2);
    border-top-color: #cb451b;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.loading-text {
    color: #fff;
    font-size: 16px;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
.loading-mask.show {
    display: flex;
}

/* ========== 加载中显示 ========== */






        .fullscreen-btn {
            position: absolute;
            bottom: 20px;
            right: 40px;
            width: 80px;
            height: 60px;
            border-radius: 6px;
            background: rgba(0,0,0,0.4);
            border: none;
            color: #fff;
            font-size: 36px;
            cursor: pointer;
            z-index: 16;
            outline: none;
display: none;

        }

.fullscreen-btn.show {
display: block;
}



        .fullscreen-btn:hover {
            background: rgba(0,0,0,0.7);
        }

        /* 指示器外层容器 */
        .dots-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            margin: 25px 0px;
            height: 44px;
        }

        /* 圆点容器：强制水平横向排列 */
        .dots-box {
            display: flex;
            flex-direction: row;
            gap: 10px;
        }

        /* 全局按钮样式 */
        .slide-btn {
            border-radius: 50%;
            border: none;
            background: rgba(0,0,0,0.5);
            color: #fff;
            cursor: pointer;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            outline: none;
            -webkit-tap-highlight-color: transparent;
        }
        .slide-btn:hover {
            background-color: #CB451B;
        }
        .slide-btn:active {
            background: rgba(0,0,0,0.9);
        }

        .slide-btn {
            width: 50px;
            height: 50px;
        }
        /* 箭头SVG样式 */
        .slide-btn svg {
            width: 40px;
            height: 40px;
            fill: #ffffff;
transform: scale(2);
        }

        .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ccc;
            cursor: pointer;
            transition: background 0.3s;
            flex-shrink: 0;
        }
        .dot.active {
            background: #2196F3;
        }

        /* 手机端适配 */
        @media (max-width: 768px) {
            .main-title {
                font-size: 22px;
            }
            .video-title {
                font-size: 16px;
position: absolute;
top: -35px;

            }
            .video-wrap {
                flex: 0 0 70%;

width: 90%;





            }
            .play-icon {
                width: 60px;
                height: 60px;
            }

/* 移动端加载器缩小 */
.loading-spinner {
    width: 36px;
    height: 36px;
}
.loading-text {
    font-size: 14px;
}


            /* 移动端同样保持水平 */
            .dots-box {
                gap: 1px;
            }



.video-item {
    height: 100%; /* 移动端视频容器高度 */
width: 100%;
background-color: black;

}



        .video-track {

            gap: 16px;

        }


.slider-container{
left: 3%;
width: 100%;


}



.video-item video {
/* height: auto;
 width: 230px; */


   }

.fullscreen-btn {
    bottom: 10px;
    right: 8px;
    width: 40px;
    height: 40px;
    font-size: 20px;

}


/* ========== 新增移动端全屏专属修复代码 ========== */
/* 移动端全屏容器强制铺满屏幕 */
.video-item.fullscreen {
    width: 100vw !important;
    height: 100vh !important;
    position: fixed !important;
    inset: 0 !important;
    padding: 0 !important;
}
/* 移动端全屏视频保持原始比例，完整显示无拉伸裁剪 */
.video-item.fullscreen video {
    width: 100vw !important;
    height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    object-fit: contain !important;
}
/* 移动端全屏按钮层级抬高，防止被遮挡 */
.video-item.fullscreen .fullscreen-btn {
    bottom: 15px;
    right: 15px;
    z-index: 99999;




}

.fullscreen-btn{
width: 70px;
        height: 50px;
        font-size: 30px;

}
.dots-wrap{

    margin: 10px 0px;
}


.main-title-2{
margin-bottom: 40px;
}


.main-title-2{
        font-size: 18px;
}


}