.banner {
    margin-top: 60px;
}

.banner img {
    width: 100%;
    height: 100%;
}

.product_text h1 {
    text-align: center;
    color: #333;
    margin-top: 20px;
    margin-bottom: 20px;
}

.product_text .case {
    background: url(../images/虚线.png) repeat-x center;
}

.product_text .case span {
    display: inline-block;
    vertical-align: middle;
    background-color: #fff;
    padding-right: 20px;
    font-size: 24px;
}
.product_text h2{
    text-align: center;
    margin-top: 30px;
    color: #333;

}
.product_text p {
    font-size: 16px;
    color: #595959;
    margin: 15px 0;
}

.product_text ul li {
    color: #595959;
    line-height: 2;
}

.hdNav li:nth-of-type(2) a::after {
    display: block;
    content: "";
    width: 66px;
    height: 2px;
    border-radius: 50%;
    background: #00abd9;
    position: absolute;
    top: 30px;
    left: 34px;
    opacity: 1;
    transition: 0.5s;
}

.product_banner {
    width: 810px;
    height: 180px;
    margin: auto;
    margin-top: 50px;
    position: relative;
}

.product_banner2 {
    width: 900px;
    height: 600px;
    margin: auto;
    margin-top: 50px;
}

.product_banner img {
    width: 250px;
    height: 180px;
    border: 4px solid #104492;
}

.product_banner2 img {
    width: 900px;
    height: 600px;
}

.swiper-slide {
    position: relative;
}

.banner2_name {
    width: 100%;
    height: 50px;
    background: rgba(0, 0, 0, 0.5);
    color: #e0e0e0;
    font-size: 32px;
    font-weight: bold;
    letter-spacing: 5px;
    text-align: center;
    position: absolute;
    top: 0px;
    left: 0;
}

.swiper-button-prev {
    width: 20px;
    height: 60px;
    position: absolute;
    top: 80px;
    left: -30px;
    background: #e7e7e7;
}

.swiper-button-next {
    width: 20px;
    height: 60px;
    position: absolute;
    top: 80px;
    right: -25px;
    background: #e7e7e7;
}

.swiper-button-prev:after,
.swiper-button-next:after {
    font-size: 16px;
}

main {
    margin-bottom: 60px;
}

@media(max-width:992px) {
    .main {
        padding: 0 16px;
    }
    .product_text .case {
        text-align: center;
        background: none;
    }
    .product_text .case span {
        display: inline-block;
        vertical-align: middle;
        background-color: #fff;
        padding-right: 0;
        font-size: 24px;
    }
    .product_text p {
        font-size: 16px;
        color: #595959;
        margin: 15px 0;
    }
    .product_banner {
        width: 100%;
        height: 100%;
        margin: auto;
        margin-top: 50px;
        position: relative;
    }
    .product_banner .swiper-slide img {
        width: 96%;
        height: 100%;
    }
    .swiper-button-prev {
        width: 60px;
        height: 20px;
        line-height: 20px;
        position: absolute;
        top: -20px;
        left: 30px;
        color: #fff;
        font-weight: bold;
        background: #104492;
    }
    .swiper-button-next {
        width: 60px;
        height: 20px;
        line-height: 20px;
        position: absolute;
        top: -20px;
        right: 30px;
        color: #fff;
        font-weight: bold;
        background: #104492;
    }
    .product_banner2 {
        width: 100%;
        height: 100%;
        margin: auto;
        margin-top: 50px;
    }
    .product_banner2 img {
        width: 100%;
        height: 100%;
    }

}

@media(max-width:992px) {
    .hdNav li:nth-of-type(2) a::after {
        display: block;
        content: "";
        width: 66px;
        height: 2px;
        border-radius: 50%;
        background: #00abd9;
        position: absolute;
        top: 35px;
        left: 34px;
        opacity: 1;
        transition: 0.5s;
    }
}