.index_product {
    width: 1200px;
    margin: auto;
}

.pro_title {
    width: 1200px;
    margin-top: 25px;
    padding-bottom: 8px;
    font-size: 22px;
    color: #333;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid #aaa;
}

.index_prolist {
    width: 1200px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.index_pro {
    width: 30%;
    margin-top: 20px;
}

.index_pro img {
    border: 1px solid #666;
}

.index_pro div {
    height: 56px;
    align-items: center;
    padding: 20px 8px 0px 8px;
    text-align: center;
    line-height: 2rem;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.index_pro:hover img {
    border: 1px solid #f10000;
}

.index_pro:hover div {
    background-color: #f10000;
    color: #fff;
}

.index_about {
    width: 100%;
    padding: 40px;
    background-color: #aaa;
    margin: 40px 0px;
}

.about_title {
    width: 1200px;
    margin: auto;
    padding-bottom: 15px;
    font-size: 22px;
    color: #fff;
    font-weight: bold;
    text-align: center;
    border-bottom: 1px solid #fff;
}

.about_detail {
    width: 1200px;
    padding: 10px 5%;
    margin-top: 25px !important;
    margin: auto;
    color: #fff;
    line-height: 24px;
    text-align: center;
    font-size: 18px;
}

.index_case,
.index_news {
    width: 30%;
    margin-top: 20px;
}

.index_case .img {
    position: relative;
}

.index_case .read_more {
    color: #fff;
    background-color: #f10000;
    position: absolute;
    width: 120px;
    text-align: center;
    padding: 10px 0px;
    left: calc(50% - 60px);
    top: calc(50% - 19px);
    display: none;
    z-index: 102;
}

.index_case .bg {
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
}

.index_case:hover .read_more,
.index_case:hover .bg {
    display: block;
}

.index_case .case_title {
    height: 56px;
    padding: 20px 8px 0px 8px;
    line-height: 2rem;
    border: none !important;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-align: center;
}

.index_news {
    padding: 0px 5px;
    box-shadow: 0 0 3px #888;
    background-color: #fff;
}

.news_title {
    font-size: 20px;
    line-height: 35px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: #333;
}

.news_detail {
    line-height: 20px;
    font-size: 16px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    color: #333;
    margin-bottom: 10px;
}

.news_other {
    border-top: 1px solid #ddd;
    font-size: 16px;
    padding: 10px 3px;
    display: flex;
    justify-content: space-between;
    justify-items: center;
}

.news_other a .news_more {
    padding: 5px 8px;
    color: #fff !important;
    background-color: #f10000 !important;
}

/* 留言 */
.feedback {
    padding: 25px 20px;
    position: relative;
    /* margin-top: 30px; */
}

.feedback p {
    line-height: 150px;
    font-size: 30px;
    font-weight: bold;
    text-align: center;
}

.feedback form {
    margin-top: -60px;
}

.feedback form ul li input {
    height: 40px;
}

.feedback form ul li input,
.feedback form ul li textarea {
    width: 100%;
    margin-top: 15px;
    line-height: 35px;
    font-size: 16px;
}

.send {
    width: 150px;
    height: 40px;
    margin-top: 20px;
    font-size: 18px;
    border-radius: 20px;
    background-color: #fff;
    color: #f10000;
    border: 1px solid #f10000;
}

.send:hover {
    color: #fff;
    background-color: #f10000;
}

/* 右侧悬浮社媒 */
.online a img {
    width: 40px;
}

/* 底部 */
.foot {
    width: 100%;
    background-color: #313131;
}

.foot_content {
    width: 1200px;
    padding: 40px 20px;
    margin: auto;
    display: flex;
    justify-content: space-between;
}

.content_1 div,
.content_2 div,
.content_3 div {
    margin-bottom: 10px;
}

.content_1,
.content_2,
.content_3 {
    line-height: 2.3rem;
}

.foot_content .title {
    font-size: 18px;
    color: #fff !important;
    padding-bottom: 10px;
}

.foot_content p a,
.foot_content p {
    color: #ddd !important;
    font-size: 14px;
}

.content_4 {
    text-align: center;
    align-items: center;
}

.content_4 img {
    width: 160px;
    margin: auto;
}

.add {
    /* display: none; */
}

.null {
    display: none;
}

.Ph_foot {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    display: none;
    background-color: #fff !important;
}

.footer {
    width: 100%;
    height: 65px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer_1,
.footer_2,
.footer_3 {
    width: 33.3%;
    padding: 5px 0px;
    text-align: center;
}

.footer div a p {
    color: #fff;
}

.footer_1,
.footer_3,
.footer_2 {
    background-color: rgba(0, 0, 0, 0.5);
    height: 65px;
}

.footer_3,
.footer_2 {
    border-left: 1px solid #fff;
}

.footer img {
    width: 25%;
    margin-bottom: 3px;
}

@media (max-width: 1199px) {

    .index_product,
    .pro_title,
    .index_prolist,
    .about_title,
    .about_detail,
    .foot_content {
        width: 100%;
    }
}

@media (max-width: 990px) {
    body {
        padding-bottom: 65px;
        padding-top: 75px;
    }

    .Ph_foot {
        display: block;
    }

    .index_case,
    .index_news,
    .index_pro {
        width: 48%;
        margin-left: 2%;
    }

    .index_prolist {
        justify-content: flex-start;
    }

    .about_detail {
        font-size: 14px;
        padding: 10px;
        margin-top: 5px !important;
    }

    .index_about {
        padding: 10px 30px;
    }

    .foot_content {
        display: none;
    }

    .add {
        display: block;
    }

    .null {
        display: block;
    }
}