body {
    font-size: 14px;
    margin: 0;
    padding: 0;
    color: #333;
}
*::after,
*::before {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
ul,
li {
    list-style: none;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none !important;
    color: #333;
}
img {
    vertical-align: middle
}
.w{
    max-width: 1520px;
    margin: 0 auto;
    padding: 0 10px;
}
/* service--start */
.service{
    width: 100%;
    overflow: hidden;
    margin: 60px 0;
}
.service .w ul{
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 20px 0;
}
.service .w>h1,
.product .w>h1{
    font-size: 48px;
    margin: 0 0 20px;
    text-align: center;
    color: #000;
}
.service .w ul li{
    width: 23.5%;
    background-color: #fff;
    padding: 30px 15px;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, .15);
    text-align: center;
    transition: all 0.5s;
    border-radius: 10px;
}
.service .w ul li:hover{
    background-color: #b60022;
}
.service .w ul li >div{
    height: 100px;
}
.service .w ul li span{
    display: block;
    font-size: 70px;
    color: #b60022;
}
.service .w ul li .icon-yuangong{
    font-size: 88px;
    position: relative;
    top: -10px;
}
.service .w ul li h3{
    font-size: 22px;
    font-weight: bold;
    color: #000;
    margin: 15px 0 20px;
}
.service .w ul li p{
    font-size: 16px;
    color: #333;
    line-height: 28px;
    margin-bottom: 20px;
}
.service .w ul li:hover span,
.service .w ul li:hover h3,
.service .w ul li:hover p{
    color: #fff;
}
/* service--end */

/* product--start */
.product{
    width: 100%;
    background-image: url(/images/product_bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    padding: 4vw 0;
}
.product .search form{
    max-width: 1000px;
    margin: 30px auto 20px;
    display: flex;
    justify-content: space-between;
}
.product .search input,
.product .search select{
    width: 31%;
    line-height: 50px;
    border: 1px solid #c2c2c2;
    background-color: #fff;
    color: #999;
    outline: none;
    padding: 0 10px;
    height: 50px;
    transition: all 0.3s;
}
.product .search input:focus{
    border: 1px solid #b60022;
}
.product .search input:nth-child(2){
    margin: 0 10px;
}

.input {
    color: #999; /* 默认显示浅色（针对未选择状态） */
    font-weight: normal; /* 去除粗体 */
}

/* 当选择了实际选项后，文字变深色 */
.input:has(option:checked:not([disabled])) {
    color: #333;
}

/* 下拉列表中的选项样式 */
.input option {
    color: #333; /* 正常选项深色 */
}

/* 下拉列表中的禁用提示选项（在下拉时隐藏或浅色） */
.input option:disabled {
    color: #ccc; /* 下拉时显示更浅的颜色 */
    display: none; /* 可选：在下拉列表中隐藏提示项 */
}

/* 输入框占位符保持一致 */
.input::placeholder {
    color: #999;
    font-weight: normal;
}

/* 浏览器兼容 */
.input::-webkit-input-placeholder { color: #999; }
.input:-moz-placeholder { color: #999; }


.product .search button{
    width: 60px;
    line-height: 50px;
    height: 50px;
    text-align: center;
    background-color: #b60022;
    border: 0;
    outline: none;
}
.product .search button span{
    font-size: 24px;
    color: #fff;
}
.product ul{
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.product ul li{
    width: 32%;
    background-color: #fff;
    margin: 10px 0;
    box-shadow: 2px 2px 10px rgba(0, 0, 0, .25);
}
.product ul li .prod_img{
    width: 100%;
    overflow: hidden;
}
.product ul li .prod_img img{
    width: 70%;
    transition: all 0.5s;
    display: block;
    margin: 25px auto;
}
.product ul li:hover .prod_img img{
    transform: scale(1.2);
}
.product ul li .prod_wz{
    width: 100%;
    overflow: hidden;
    background-color: #efefef;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.5s;
}
.product ul li:hover .prod_wz{
    background-color: #b60022;
}
.product ul li .prod_wz p{
    font-size: 20px;
    color: #333;
    margin: 0;
}
.product ul li .prod_wz span{
    transform: rotate(-45deg);
    transition: all 0.5s;
    font-size: 30px;
    width: 30px;
    height: 30px;
    line-height: 30px;
    border-radius:50px;
    background-color: transparent;
}
.product ul li:hover p{
    color: #fff;
}
.product ul li:hover .prod_wz span{
    font-size: 30px;
    width: 30px;
    height: 30px;
    line-height: 30px;
    border-radius:50px;
    background-color: #fff;
    color: #b60022;
    transform: rotate(0deg);
}
/* product--end */
/* about--start */
.about{
    width: 100%;
    background-image: url(/images/about_bg.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    padding: 4vw 0;
}
.about .w{
    display: flex;
    justify-content: space-between;
}
.about .w .about_left{
    width: 46%;
}
.about .w .about_left h1{
    font-size: 48px;
    color: #fff;
    margin: 0 0 30px;
    position: relative;
}
.about .w .about_left h1::after{
    position: absolute;
    content: "";
    left: 0;
    bottom: -15px;
    width: 100px;
    height: 6px;
    background-color: #fff;
}
.about .w .about_left p{
    font-size: 18px;
    color: #fff;
    line-height: 40px;
}
.about .w .about_left a{
    width: 210px;
    line-height: 64px;
    background-color: #fff;
    border-radius: 50px;
    text-align: center;
    display: block;
    margin-top: 40px;
    transition: all 0.5s;
}
.about .w .about_left a:hover{
    background-color: #b60022;
    color: #fff;
}
.about .w  .about_right{
    width: 48%;
}
/* about--end */
/* Cooperative users--start */
.cooper{
    width: 100%;
    overflow: hidden;
    margin: 60px 0;
}
.cooper .cooper_tit h1{
    font-size: 48px;
    text-align: center;
    margin: 0 0 20px;
}
.cooper .cooper_tit p{
    font-size: 22px;
    text-align: center;
}
.cooper .w ul{
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.cooper .w ul li{
    width: 18%;
    margin: 30px 0;
    text-align: center;
}
.cooper .w ul li img{
    max-width: 180px;
}
/* Cooperative users--end */

/* product--end */
.adv_box{
    width: 100%;
    overflow: hidden;
    background-color: #f0f0f0;
        padding: 60px 0;
}
.adv_box .w{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    flex-direction: row-reverse;
    -webkit-box-direction: reverse;
}
.adv_box .w .adv_left{
    width: 50%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.adv_box .w .adv_left .left_list{
    width: 47%;
    text-align: center;
    margin-bottom: 20px;
}
.adv_box .w .adv_left .left_list .left_icon{
    width: 95px;
    height: 95px;
    background-color: #e4e4e4;
    border-radius: 50%;
    display:flex;
    justify-content: center;
    align-items: center;
    margin: auto;
}
.adv_box .w .adv_left .left_list .left_icon img{
    width:60px;
}
.adv_box .w .adv_left .left_list h3{
    font-size: 22px;
    font-weight:bold;
    margin: 20px 0;
}
.adv_box .w .adv_left .left_list p{
    font-size: 16px;
    color: #333;
    line-height: 28px;
}
.adv_box .w .adv_right{
    width: 45%;
}
.adv_box .w .adv_right h1{
    font-size: 48px;
    margin: 0 0 30px;
    position: relative;
}
.adv_box .w .adv_right h1::after{
    position: absolute;
    content: "";
    left: 0;
    bottom: -10px;
    background-color: #b60022;
    width: 92px;
    height: 6px;
}
.adv_box .w .adv_right img{
    width: 100%;
}
/* news--start */
.new{
    width: 100%;
    overflow: hidden;
    margin: 80px 0;
}
.new .w h1{
    font-size: 48px;
    margin: 0 0 20px;
}
.new .w ul{
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
}
.new .w ul li{
    width: 32%;
    border: 1px solid #e4e4e4;
    margin: 10px 0.5%;
    padding: 30px;
    transition: all 0.5s;
}
.new .w ul li h3{
    font-size: 16px;
    margin: 0 0 15px;
    font-weight: bold;
}
.new .w ul li p{
    font-size: 16px;
    line-height: 30px;
    display: -webkit-box;
    text-overflow: ellipsis;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;/*控制行数*/
    overflow: hidden;
}
.new .w ul li p:first-child{
    font-size: 15px;
    font-weight: normal;
    color: #999;
}
.new .w ul li span{
    display: block;
    margin:0 20px 0 0;
    color: #999;
}
.new .w ul li:hover{
    background-color: #b60022;
    border: 1px solid #b60022;
    color: #fff;
}
.new .w ul li:hover p,
.new .w ul li:hover h3,
.new .w ul li:hover span{
    color: #fff;
}
/* news--end */

/* Mobile -- start*/
@media screen and (max-width: 992px) {
    /* Our services */
    .service {
        width: 100%;
        overflow: hidden;
        margin: 30px 0;
    }
    .service .w>h1, 
    .product .w>h1 {
        font-size: 30px;
        margin: 0;
        text-align: center;
        color: #000;
        font-weight: bold;
    }
    .service .w ul{
        padding: 20px 0 0;
    }
    .service .w ul li {
        width: 100%;
        background-color: #fff;
        padding: 20px;
        box-shadow: 2px 2px 10px rgba(0, 0, 0, .15);
        text-align: center;
        transition: all 0.5s;
        border-radius: 10px;
        margin-bottom: 30px;
    }
    .service .w ul li h3 {
        font-size: 20px;
        font-weight: bold;
        color: #000;
        margin: 5px 0 10px;
    }
    .service .w ul li p {
        font-size: 16px;
        font-weight: normal;
        color: #333;
        line-height: 28px;
        margin-bottom: 20px;
    }
    /* product */
    .product {
        padding: 30px 0;
    }
    .product .search form {
        max-width: 1000px;
        margin: 15px auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .product .search input, .product .search select {
        width: 100%;
        line-height: 50px;
        border: 1px solid #c2c2c2;
        background-color: #fff;
        color: #999;
        outline: none;
        padding: 0 10px;
        height: 50px;
        transition: all 0.3s;
        margin-top: 10px;
    }
    .product .search input{
        width: 100%;
        margin: 10px 0;
    }
    .product .search input:nth-child(2) {
        margin: 0;
    }
    .product .search button,
    .product ul li{
        width: 100%;
    }
    /* about */
    .about{
        padding: 30px 0;
    }
    .about .w {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .about .w .about_left {
        width: 100%;
    }
    .about .w .about_left h1 {
        font-size: 30px;
        color: #fff;
        margin: 0 0 30px;
        position: relative;
        font-weight: bold;
    }
    .about .w .about_left h1::after{
        height: 4px;
    }
    .about .w .about_left p {
        font-size: 16px;
        color: #fff;
        line-height: 32px;
        font-weight: normal;
    }
    .about .w .about_left a {
        width: 180px;
        line-height: 52px;
        background-color: #fff;
        border-radius: 50px;
        text-align: center;
        display: block;
        margin-top: 30px;
        transition: all 0.5s;
    }
    .about .w .about_right {
        width: 100%;
        margin-top: 30px;
    }
    /* Cooperative */
    .cooper {
        width: 100%;
        overflow: hidden;
        margin: 30px 0;
    }
    .cooper .cooper_tit h1 {
        font-size: 30px;
        text-align: center;
        margin: 0 0 15px;
        color: #000;
        font-weight: bold;
    }
    .cooper .cooper_tit p {
        font-size: 18px;
        font-weight: normal;
        text-align: center;
        line-height: 34px;
    }
    .cooper .w ul li {
        width: 33%;
        margin: 15px 0;
        text-align: center;
    }
    .cooper .w ul li img {
        max-width: 80%;
    }
    /*  Our advantages */
    .adv_box{
        padding: 30px 0;
    }
    .adv_box .w .adv_left {
        width: 100%;
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        padding: 0 20px;
    }
    .adv_box .w .adv_left .left_list {
        width: 100%;
        text-align: center;
        margin-bottom: 20px;
    }
    .adv_box .w .adv_left .left_list .left_icon {
        width: 110px;
        height: 110px;
    }
    .adv_box .w .adv_left .left_list h3 {
        font-size: 22px;
        font-weight: bold;
        margin: 20px 0 10px;
    }
    .adv_box .w .adv_left .left_list p {
        font-size: 16px;
        color: #333;
        font-weight: normal;
        line-height: 30px;
    }
    .adv_box .w .adv_right {
        width: 100%;
        margin-bottom: 30px;
    }
    .adv_box .w .adv_right h1{
        font-size: 30px;
        text-align: center;
        color: #000;
        font-weight: bold;
    }
    .adv_box .w .adv_right h1::after{
        height: 4px;
        left: 50%;
        transform: translateX(-50%);
    }
    /* news */
    .new {
        width: 100%;
        overflow: hidden;
        margin: 30px 0;
    }
    .new .w h1 {
        font-size: 30px;
        margin: 0 0 10px;
        text-align: center;
        color: #000;
        font-weight: bold;
    }
    .new .w ul li {
        width: 100%;
        border: 1px solid #e4e4e4;
        margin: 10px 0;
        padding: 25px;
        transition: all 0.5s;
    }
    .new .w ul li h3 {
        font-size: 17px;
        margin: 0 0 10px;
        font-weight: bold;
        line-height: 28px;
        display: -webkit-box;
        text-overflow: ellipsis;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
        overflow: hidden;
    }
    .new .w ul li p{
        font-weight: normal;
    }


}


/* Mobile--end */