html, body
{
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
}
body
{
    max-width: 1160px;
    margin: 0 auto;
}
.row
{
    margin: 0;
}
.introduction
{
    background: #fff;
}
.hr
{
    display: block;
    margin-top: 15px;
    width: 100px;
    height: 1px;
    background: #f00;
}
.brief-introduction
{
    padding: 0 50px;
}
.brief-introduction, .introduction-video
{
    height: 230px;
}
.introduction-video
{
    padding: 0;
}
.introduction-video video
{
    width: 100%;
    height: 100%;
}
.introduction-text
{
    margin-top: 15px;
    color: #818181;
    text-indent: 2em;
}
.add
{
    display: inline-block;
    margin-top: 15px;
    width: 100px;
    height: 30px;
    line-height: 25px;
    font-size: 25px;
    text-align: center;
    color: #ff6060;
    border: 1px solid #ff6060;
    cursor: pointer;
}
.product-display
{
    padding: 50px;
    background: #ebebeb;
    padding-top: 10px;
}
.title-sub
{
    color: #ee1d23;
    position: relative;
}
.product-add
{
    display: inline-block;
    width: 100px;
    height: 30px;
    line-height: 25px;
    font-size: 25px;
    text-align: center;
    color: #fff;
    background: #ee1d23;
}
.product-list
{
    height: 395px;
    padding: 0;
    padding: 10px;
    background: #fff;
    cursor: pointer;
}
.product-list:hover
{
    box-shadow: 0 10px 20px 0 #d7d7d7;
}
.product-list .product-img
{
    width: 100%;
}
.product-list .product-img img
{
    width: 100%;
}
.text-red
{
    color: #ee1d23;
}
.product-text, .product-sub
{
    color: #ababab;
}
.company-dynamics
{
    padding: 50px;
    background: #fff;
    padding-top: 10px;
}
.pos
{
    position: relative;
}
.dynamics-btn
{
    position: absolute;
    bottom: 25px;
    right: 0;
}
.dynamics-btn span
{
    display: inline-block;
    margin-right: 15px;
    width: 100px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    font-size: 16px;
    color: #333;
    background: #ebebeb;
    cursor: pointer;
}
.dynamics-btn .dynamics-active
{
    color: #fff;
    background: #ee1d23;
}
.dynamics-box
{
    margin-top: 10px;
}
.dynamics-box div
{
    padding: 0;
}
.dynamics-img
{
    position: relative;
}
.dynamics-img img
{
    width: 100%;
    height: 100%;
}
.dynamics-time
{
    position: absolute;
    bottom: 20px;
    width: 100%;
    padding: 0 15px;
    font-size: 17px;
    color: #fff;
}
.time
{
    float: right;
}
.dynamics-txt
{
    padding: 0 20px!important;
}
.dynamics-day
{
    font-size: 17px;
}
.dynamics-title
{
    font-size: 16px;
    margin-bottom: 20px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
}
.dynamics-sub
{
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    color: #818181;
    padding-left: 22px;
    padding-bottom: 25px;
    border-bottom: 1px solid #d7d7d7;
}
.dynamics-m
{
    display: none;
}
.contact
{
    padding: 0;
}
.contact-title
{
    font-weight: 500;
    margin-bottom: 15px;
}
.contact-box
{
    color: #818181;
}
.contact-box p
{
    margin-bottom: 0;
}
.contact-box p span
{
    margin-right: 15px;
}
.contact-icon
{
    margin-top: 15px;
}
.contact-icon span
{
    display: inline-block;
    width: 30px;
    height: 30px;
    margin-right: 40px;
}
.contact-icon .w
{
    width: 35px;
    background: url(../png/i5o5s7.png) no-repeat;
    background-size: 100% 100%;
}
.contact-icon .b
{
    width: 35px;
    background: url(../png/4zaxbc.png) no-repeat;
    background-size: 100% 100%;
}
.contact-icon .q
{
    background: url(../png/njtpjz.png) no-repeat;
    background-size: 100% 100%;
}
.er
{
    width: 130px;
    height: 130px;
    background: url(../png/1cznrq.png) no-repeat;
    background-size: 100% 100%;
}
.j
{
    width: 100px;
    height: 100px;
    background: url(../png/ypbmf0.png) no-repeat;
    background-size: 100% 100%;
    margin: 0 auto;
}
.j-text
{
    display: inline-block;
    margin-top: 9px;
    width: 130px;
    height: 50px;
    background: url(../png/881pso.png) no-repeat;
    background-size: 100% 100%;
}
.trademark-er
{
    display: flex;
    align-items: center;
}
.trademark-er .t
{
    padding: 0 25px;
}
.b-r
{
    border-right: 1px solid #dfdfdf;
}
.er-text
{
    display: block;
    text-align: center;
    font-size: 17px;
    margin-top: 10px;
}
.drop
{
    width: 100%;
    position: absolute;
    top: 60px;
    background: #fff;
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
    z-index: 11;
    display: none;
}
.drop-s
{
    display: block;
    width: 7px;
    height: 7px;
    transform: rotate(45deg);
    background: #ee1d23;
    position: absolute;
    left: calc(50% - 3.5px);
    top: -3.5px;
}
.drop-ul
{
    padding: 0;
    padding-bottom: 10px;
    text-align: center;
    list-style: none;
    border-top: 5px solid #ee1d23;
}
.drop-ul li
{
    margin-top: 15px;
    cursor: pointer;
}
.drop-ul li a
{
    text-decoration: none;
    color: #333;
}
.drop-ul li:hover
{
    color: #ee1d23;
}
.about-us, .about
{
    padding: 0;
    text-align: center;
}
.about-us
{
    background: #ee1d23;
    color: #fff;
    font-size: 17px;
    padding: 15px 0;
}
.about a
{
    display: inline-block;
    height: 100%;
    text-decoration: none;
    color: #333;
    padding: 15px 0;
}
.about .active
{
    color: #ee1d23;
    border-bottom: 2px solid #ee1d23;
}
@media screen and (max-width: 768px)
{
    body
    {
        padding-top: 65px;
    }
    .logo
    {
        margin: 0 15px 0 15px;
    }
    .navbar
    {
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 100;
    }
    .title
    {
        font-size: 18px;
    }
    .brief-introduction, .product-display, .company-dynamics
    {
        padding: 0 15px 10px 15px;
    }
    .row
    {
        margin: 0;
    }
    .brief-introduction, .introduction-video
    {
        height: auto;
    }
    .brief-introduction
    {
        padding-bottom: 10px;
    }
    .product-list
    {
        height: auto;
        margin-top: 10px;
    }
    .dynamics-img
    {
        margin-top: 10px;
    }
    .dynamics-btn
    {
        margin-top: 10px;
        width: 100%;
        position: static;
    }
    .dynamics-btn span
    {
        margin-right: 8px;
        width: 70px;
        font-size: 14px;
    }
    .dynamics-time
    {
        bottom: 2px;
        font-size: 8px;
        padding: 0 5px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .dynamics-txt
    {
        padding: 0!important;
        margin-top: 10px;
    }
    .dynamics-title
    {
        font-size: 14px;
        margin-bottom: 10px;
    }
    .dynamics-sub
    {
        font-size: 10px;
        padding-bottom: 10px;
    }
    .dynamics-day
    {
        display: none;
    }
    .dynamics-m
    {
        display: inline-block;
    }
    .contact-icon
    {
        display: flex;
        justify-content: space-between;
    }
    .contact-icon span
    {
        margin: 0;
    }
    .contact-box p span
    {
        display: inline-block;
        width: 100%;
        margin: 5px 0 0 0;
    }
    .trademark-er
    {
        margin: 25px auto;
        float: none!important;
    }
    .er
    {
        width: 60px;
        height: 60px;
        margin: 0 auto;
    }
    .er-text
    {
        font-size: 10px;
    }
    .j
    {
        width: 50px;
        height: 50px;
    }
    .j-text
    {
        width: 80px;
        height: 34px;
    }
    .footer
    {
        padding: 10px 15px;
    }
    .f-list
    {
        display: flex;
        flex-wrap: wrap;
    }
    .f-list span
    {
        width: 25%;
        text-align: center;
        border: none;
        padding: 0;
        margin-bottom: 10px;
    }
    .b
    {
        text-align: center;
    }
    #sel
    {
        margin-top: 10px;
    }
}
@media screen and (min-width: 768px)
{
    .product-list
    {
        width: 48%;
        padding: 0;
        padding: 10px;
        background: #fff;
    }
}