body {
    margin: 0;
    padding: 0;
}

.banner .banner_img {
    position: relative;
}

.banner_img .banner_text {
    position: absolute;
    left: 40%;
    top: 30%;
}

.banner_img img {
    width: 100%;
    height: 18rem;
}

.banner_text h1 {
    font-size: 250%;
    color: #fff;
    font-family: Arial, "微软雅黑";
}

.banner_logo {
    position: absolute;
    top: 10%;
    left: 5%;
}

.banner_logo a {
    display: block;
    background: url(../image/logo/logo2.png) center no-repeat;
    background-size: 13rem;
    width: 338px;
    height: 167px;
}


/* 详情页面 */

.w {
    width: 1200px;
    margin: 0 auto;
}

.detail {
    background-color: transparent;
    /* height: 2000px; */
}

.product_title1 {
    position: relative;
    padding: 60px 0 40px 20px;
}

.product_title1 h2 {
    columns: #333;
    font-size: 2rem;
}

.product_title1 h2::before {
    bottom: 40px;
    width: 3px;
    height: 35px;
    padding-right: 5px;
    content: "";
    display: block;
    position: absolute;
    left: 0;
    background-color: #c22c33;
}

.product_content1 p {
    font-size: 1.2rem;
    text-indent: 2em;
}

.product_content1_img img {
    width: 80%;
    height: 50%;
    padding-left: 126px;
}

.product_content_video video {
    width: 1000px;
    height: 490px;
    padding-left: 150px;
}


/* .detail {
    background-color: pink;
    width: 100%;
    height: 1000px;
} */