html,body {
    margin: 0 !important;
    padding: 0 !important;
}
.bg_img {
    min-width: 1200px;
}
.bg_img img {
    width: 100%;
}
.main_content {
    margin: auto;
    width: 1200px;
}
.us_menu {
    margin-top: 20px;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
}
.us_menu a {
    color: #333333;
}
.us_menu a:hover {
    text-decoration: none;
}
.active_us {
    color: #33b150;
    border-bottom: 2px solid #33b150;
}
.menu_list {
    margin: 0 25px;
    padding: 20px 30px;
    font-weight: bold;
    cursor: pointer;
}
.menu_list:hover {
    color: #33b150;
}
.xian {
    width: 100%;
    height: 1px;
    background-color: #CCCCCC;
}
/* 公司简介 */
.company_profile {
    margin: 50px auto 0;
    width: 1200px;
}
.company_title {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}
.p1 {
    font-size: 26px;
}
.p2 {
    font-size: 24px;
    color: #999999;
}
.info_one {
    margin-top: 40px;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
}
.info_one_img {
    width: 450px;
}
.info_two_img {
    width: 450px;
}
.info_three_img {
    width: 450px;
    height: 300px;
}
.info_one_text {
    width: 500px;
}
.info_one_text p {
    text-indent: 2em;
}

/* 底部 */
.footer {
    margin-top: 150px;
    height: 120px;
    background-color: #b2dfb3;
    min-width: 1200px;
}
.footer .footerbanxin {
    height: 120px;
    position: relative;
}
.footer .footerbanxin .footercenter {
    width: 454px;
    height: 30px;
    position: absolute;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    line-height: 30px;
}

/* 联系我们 */
.contact_us {
    margin: 50px auto 0;
    width: 1000px;
    position: relative;
}
.contact_us_img {
    margin: 0 auto;
    width: 1000px;
    height: 420px;
}
.contact_us_text {
    width: 1000px;
    height: 420px;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(255, 255, 255, 0.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}
.contact_us_text p {
    margin: 20px 50px;
    font-size: 16px;
    font-weight: bold;
}

/* 平台简介 */
.introduction {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}
.introduction_text {
    width: 1000px;
}
.introduction_text_1 {
    text-indent: 2em;
}
.introduction_text_2 {
    text-indent: 2em;
    /*text-align: center;*/
}
.img_show {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}
.img_show img {
    margin: 30px 0;
    width: 280px;
    height: 240px;
    border-radius: 10px;
    box-shadow: 0 0 10px #CCCCCC;
}
/* 知识产权 */
.zhishi_img {
    width: 400px;
}
.zhishi_text {
    text-indent: 2em;
    width: 700px;
}