/* 整个的样式  start */
.national {
    position: relative;
    max-width: 1300px;
    margin: 0 auto;
    background: url(../img/100/bg_content.jpg) no-repeat;
    background-size: 100% auto;
}

/* 整个的样式  end */

/* 标题区  start */
.na_title {
    position: absolute;
    top: 0;
    left: 0;
    background: transparent;
    font-size: 22px;
    font-weight: bold;
    color: white;
    padding-left: 20px;
    height: 28px;
    line-height: 28px;
}

    .na_title::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 10px;
        transform: translateY(-46%);
        width: 5px;
        height: 20px;
        background-color: #fff;
    }

/* 标题区  end */
/* 轮播图调整  s */
.na_content {
    position: relative;
}

    .na_content .item > img {
        opacity: 0;
        position: relative;
    }

.carousel-control.right,
.carousel-control.left {
    background-image: none;
}

.left.carousel-control,
.right.carousel-control {
    width: 46px;
}

/* 轮播图调整  e */



/* 轮播项的设计  s */
.carousel_item .items {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 30px;
}

.na_content .items .item {
    position: relative;
    flex: 1;
    height: 240px;
    display: flex;
    border-radius: 10px;
    margin: 10px;
    transition: all .3s;
}

    .na_content .items .item a {
        position: relative;
        display: flex;
        width: 100%;
    }

    .na_content .items .item:hover {
        transform: scale(1.03);
    }

    .na_content .items .item .item_before {
        position: absolute;
        top: 0;
        left: 0;
        display: inline-block;
        width: 100%;
        height: 100%;
        border-radius: 6px;
        z-index: 0;
        background-color: rgba(255, 255, 255, .25);
        box-shadow: rgba(0, 0, 0, 0.2) 0 0 20px;
        overflow: hidden;
        transition: all .3s;
    }

        .na_content .items .item .item_before img {
            position: relative;
            width: 100%;
            height: 100%;
            opacity: 0.6;
        }

.item_img {
    z-index: 1;
    flex: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 6px;
}

.item_img_content {
    height: 173px;
    margin: 0 10px;
    background: no-repeat center;
    background-size: cover;
}

@media screen and (max-width:768px) {
    .na_content .items .item {
        height: 80px;
        margin-top: 33px;
    }

    .item_img_content {
        width: 100%;
        height: 80px;
        margin: 0;
    }

    .item_content {
        display: none;
    }

    .na_title {
        font-size: 18px;
    }

    .na_content .item > img {
        height: 126px;
    }
}

@media screen and (max-width: 480px) {
    .na_content .items .item {
        top: -4px;
        height: 65px;
    }

    .item_img_content {
        /* width: 63.67px; */
        height: 65px;
    }

    .na_content .item > img {
        height: 110px;
    }
}

@media screen and (min-width:768px) {
    .na_content .items .item {
        height: 90px;
        margin-top: 32px;
    }

    .item_content {
        position: relative;
        z-index: 1;
        flex: 6;
        display: flex !important;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

        .item_content h5,
        .item_content p {
            width: 100%;
            padding: 0 5px;
            color: white;
        }

        .item_content h5 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 8px;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .item_content p {
            font-size: 16px;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 4;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

    .item_img_content {
        width: 117.33px;
        height: 78px;
    }
}

@media screen and (min-width:1000px) {
    .na_content .items .item {
        height: 120px;
        margin-top: 30px;
    }

    .item_img_content {
        width: 157.33px;
        height: 105px;
    }
}

/* 轮播项的设计  e */