/* 轮播图容器 - 全屏高度 */
    .main-banner {
        position: relative;
        width: 100%;
        /* height: 100vh;
        min-height: 680px; */
        overflow: hidden;
    }

    /* Swiper 核心样式 */
    .main-banner .swiper {
        width: 100%;
        height: 100%;
    }

    .main-banner .swiper-slide {
        position: relative;
        background-position: center;
        background-size: cover;
        display: flex;
        align-items: center;
    }

    .main-banner .swiper-slide::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        /* background: linear-gradient(to bottom, rgba(0, 0, 0, 0.05) 0%, rgba(0, 0, 0, 0.4) 100%); */
        z-index: 1;
    }

    .main-banner .swiper-slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 8s ease-in-out !important;
        transform: scale(1);
    }

    /* 图片缩放动画（官方 zoomImage 效果） */
    .swiper-slide img {
        transition: transform 8s ease-in-out !important;
        transform: scale(1);
    }

    .swiper-slide-active img {
        transform: scale(1.12);
    }

    /* 分页器 - 正确方向倒计时长条（从左向右填充） */
    .main-banner .swiper-pagination {
        bottom: 60px !important;
        display: flex;
        justify-content: center;
        gap: 14px;
    }

    .main-banner .swiper-pagination-bullet {
        width: 107px;
        height: 4px;
        border-radius: 0;
        background: rgba(255,255,255,0.4);  /* 底色：半透明白色 */
        opacity: 1;
        position: relative;
        overflow: hidden;
        margin: 0 !important;
    }

    /* 进度条：从左向右填充 */
    .main-banner .swiper-pagination-bullet::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 0%;                      /* 初始为0 */
        height: 100%;
        background: #ffffff;            /* 纯白进度条 */
        transition: width 0.1s linear;  /* 平滑过渡，仅用于非激活状态重置 */
        /* z-index: 1; */
    }

    /* 当前激活的 bullet：进度条从左向右充满 */
    .main-banner .swiper-pagination-bullet-active::before {
        width: 100%;
        animation: countdown-fill 4000ms linear forwards;  /* 与autoplay delay一致 */
    }

    /* 关键动画：从左向右填充 */
    @keyframes countdown-fill {
        from { width: 0%; }
        to   { width: 100%; }
    }

    /* 隐藏默认箭头（官方风格不显示） */
    .main-banner .swiper-button-next,
    .main-banner .swiper-button-prev {
        display: none;
    }

    /* 响应式调整（与官方完全一致） */
    @media (max-width: 1280px) {

        .main-banner {
            /* height: 80vh; */
        }
    }

    @media (max-width: 768px) {
        .main-banner {
            /* height: 70vh;
            min-height: 500px; */
        }

        .main-banner .swiper-pagination {
            bottom: 40px;
        }

        .main-banner .swiper-pagination-bullet {
            width: 60px;
        }
    }

    
    .met-index-news{
        margin: 0;
    }
    /* 优势项目标题 */
    .advantages-main-title{
        text-align: center;
    }
    
    /* 优势项目容器 */
    .advantages-container {
        display: flex;
        flex-wrap: wrap;
        gap: 30px;
        padding: 30px 0;
    }
    
    /* 单个优势项目 */
    .advantage-item {
        flex: 1 1 calc(50% - 15px);
        min-width: 300px;
        padding: 25px;
        border-radius: 8px;
        display: flex;
        align-items: flex-start;
    }
    
    
    /* 图标区域 */
    .advantage-icon {
        flex-shrink: 0;
        width: 60px;
        height: 60px;
        margin-right: 20px;
    }
    
    .advantage-icon img {
        max-width: 100%;
        max-height: 100%;
        object-fit: contain;
    }
    
    /* 内容区域 */
    .advantage-content {
        flex: 1;
    }
    
    /* 优势标题 */
    .advantage-title {
        font-size: 22px;
        font-weight: 700;
        color: #1a1a1a;
        margin-bottom: 15px;
        line-height: 1.3;
        margin-top: 0;
    }
    
    /* 优势前两字添加下划线 */
    .underline-text {
        text-decoration: underline;
        text-decoration-color: #000;
        text-decoration-thickness: 3px;
        text-underline-offset: 10px;
    }
    
    /* 优势描述 */
    .advantage-description {
        font-size: 18px;
        line-height: 1.7;
    }
    
    /* 新闻动态标题 */
    .news-main-title{
        text-align: center;
        font-weight: bold;
    }
    /* 主要新闻项 - 左图右文布局 */
    .news-item {
        display: flex;
        gap: 30px;
        /*background-color: #f8f9fa;*/
        border-radius: 8px;
        padding: 30px 0;
        align-items: center; /* 图片和文字区域整体垂直居中 */
    }
    
    .news-image {
        flex-shrink: 0;
        width: 500px;
        height: 250px;
        border-radius: 15px;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .news-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.3s ease;
    }
    
    .news-image:hover img {
        transform: scale(1.05);
    }
    
    .news-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        text-align: left;
        height: 150px; /* 与图片高度一致 */
        position: relative;
    }
    
    .news-title {
        font-size: 22px;
        font-weight: 700;
        color: #1a1a1a;
        line-height: 1.3;
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 100%;
        margin-top: 0;
    }
    
    .news-date {
        font-size: 16px;
        /* color: #aaaaaa; */
        position: absolute;
        bottom: 0;
        left: 0;
        display: flex;
        align-items: baseline;
    }
    
    .date-month-day {
        font-size: 22px;
        font-weight: 700;
        color: #a0a0a0;
    }
    
    .date-year {
        font-size: 14px;
        margin-left: 4px;
        color: #9fa1a0;
    }
    /* 分隔线 */
    .divider {
        height: 1px;
        background-color: #e0e0e0;
        width: 100%;
    }
    .about-main-bg{
        background: 
        linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
        url("/public/images/bj11.jpg");
        background-size: cover;
        background-position: center;
        padding: 20px 0;
    }
    .met-index-body .container{   /*.about-main-bg */
        width: 85%;
    }
    .about-main-bg .about-main-title h1,.advantages-main-bg .advantages-main-title h1,.news-main-bg .news-main-title h1{
        font-size: 3.2rem;
    }
    .about-main-bg .about-container{
        font-size: 18px;
    }
    .advantages-main-bg{
        background: 
        linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
        url("/public/images/bj22.jpg");
        background-size: cover;
        background-position: center;
        position: relative;
        padding: 80px 0;
    }
    .news-main-bg{
        background: 
        linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.9)), 
        url("/public/images/bj33.jpg");
        background-size: cover;
        background-position: center;
        padding: 30px 0;
    }
    
    /* ─────────────────────────────────────── */
    /*               响应式断点               */
    /* ─────────────────────────────────────── */
    /* ≤ 1024px (平板/小桌面) */
    @media (max-width: 1536px) {
        .news-image {
            width: 400px;
            height: 200px;
        }
        .about-main-img{
            max-width: 1400px;
        }
        .about-img{
            max-width: 400px;
        }
    }

    /* ≤ 1024px (平板/小桌面) */
    @media (max-width: 1024px) {
        .advantages-container {
            gap: 24px;
            padding: 0 15px;
        }
        
        .advantage-item {
            flex: 1 1 45%;
        }
        
        .news-item {
            gap: 24px;
            padding: 25px 15px;
        }
        
        .news-image {
            width: 260px;
            height: 130px;
        }
        
        .news-content {
            min-height: 130px;
        }
        .about-main-bg .about-main-title h1,.advantages-main-bg .advantages-main-title h1,.news-main-bg .news-main-title h1{
            font-size: 2.572rem;
        }
    }

    /* ≤ 768px (手机横屏 / 小平板) */
    @media (max-width: 768px) {
        .about-main-bg{
            padding: 15px 0;
        }
        .advantages-main-bg{
            padding: 0;
        }
        .advantages-main-title,
        .news-main-title {
            margin: 50px 0 35px;
        }
        
        .advantages-container {
            gap: 20px;
        }
        
        .advantage-item {
            flex: 1 1 100%;        /* 手机上变单列 */
            min-width: 100%;
            max-width: none;
        }
        
        .advantage-icon {
            width: 50px;
            height: 50px;
            margin-right: 16px;
        }
        
        .news-item {
            flex-direction: column; /* 图片在上，文字在下 */
            align-items: stretch;
            gap: 20px;
            padding: 25px 15px;
        }
        
        .news-image {
            width: 100%;
            height: 200px;         /* 手机上图片占满宽度，高度适当增加 */
            border-radius: 12px;
        }
        
        .news-content {
            min-height: auto;      /* 取消固定高度 */
            position: static;
        }
        
        .news-title {
            position: static;
            transform: none;
            margin-bottom: 15px;
        }
        
        .news-date {
            position: static;
        }
        .about-main-bg .about-main-title h1,.advantages-main-bg .advantages-main-title h1,.news-main-bg .news-main-title h1{
            font-size: 2.572rem;
        }
    }

    /* ≤ 480px (小手机) */
    @media (max-width: 480px) {
        body {
            padding: 10px;
        }
        .advantages-main-bg{
            padding: 0;
        }
        .advantages-main-title,
        .news-main-title {
            font-size: clamp(24px, 6vw, 30px);
            margin: 40px 0 30px;
        }
        
        .advantage-title {
            font-size: 18px;
        }
        
        .advantage-description {
            font-size: 14px;
        }
        
        .news-image {
            height: 180px;
        }
        
        .news-title {
            font-size: 18px;
        }
        
        .date-month-day {
            font-size: 18px;
        }
    }


    /* 核心样式 - 完全还原你提供的结构效果 */
    .about-main-img {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 40px;                    /* 三张图片之间的间距 */
        flex-wrap: wrap;              /* 小屏幕自动换行 */
        padding: 40px 0px;
        /* max-width: 1400px; */
        margin: 0 auto;
    }

    .about-img {
        flex: 1;
        min-width: 280px;
        /* max-width: 400px; */
        border-radius: 30px;          /* 大圆角，和官网卡片一致 */
        overflow: hidden;
        box-shadow: 
            0 0 12px rgba(0, 140, 255, 0.20),
            0 0 25px rgba(0, 140, 255, 0.12),
            0 0 40px rgba(0, 140, 255, 0.06);
        transition: transform 0.4s ease, box-shadow 0.4s ease;
        text-align: center;
        position: relative;
    }

    .about-img .about-img-text{
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        padding: 40px 30px 10px;     /* 上多留空间，形成渐变感 */
        pointer-events: none;        /* 文字不阻挡鼠标事件 */
        font-weight: bold;
        font-size: 22px;
        color: #2a333c;
        
    }

    .about-img:hover {
        transform: translateY(-15px); /* 鼠标悬停上浮 */
        box-shadow: 
            0 0 18px rgba(0, 140, 255, 0.30),
            0 0 35px rgba(0, 140, 255, 0.20),
            0 0 55px rgba(0, 140, 255, 0.10);
    }

    .about-img img {
        width: 100%;
        height: auto;
        display: block;
        transition: transform 0.6s ease;
    }

    .about-img:hover img {
        transform: scale(1.08);       /* 轻微放大，增加互动感 */
    }