body {
    width: 100%;
    background: #F6F6F6;
  }
  .littleHands:hover {
    cursor: pointer;
  }
  .nav {
    width: 100%;
    height: 120px;
    background: #ffffff;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 999;
  }
  .nav .nav_box {
    width: 1200px;
    margin: 0 auto;
    display: flex;
  }
  .nav .nav_box .nav_logo {
    width: 253px;
    margin-top: 30px;
  }
  .nav .nav_box .nav_logo img {
    width: 100%;
  }
  .nav .nav_box .nav_list {
    width: 912px;
    height: auto;
    margin-left: 34px;
    line-height: 120px;
  }
  .nav .nav_box .nav_list ul {
    display: flex;
  }
  .nav .nav_box .nav_list ul li {
    margin-left: 39px;
    font-size: 20px;
    font-weight: 500;
    color: #333333;
  }
  .nav .nav_box .nav_list ul li:hover {
    font-weight: bolder;
    cursor: pointer;
  }
  .banner {
    width: 100%;
    height: 1036px;
    background: url('../img/selectedCases/banner.jpg') no-repeat;
    background-size: 100% 100%;
    /*margin-top: 120px;*/
  }
  .banner .bnr_box {
    width: 1170px;
    height: auto;
    margin: 0 auto;
    padding-top: 93px;
    position: relative;
  }
  .banner .bnr_box .bnr_ipt_bg {
    width: 100%;
    height: 88px;
    background: #FFFFFF;
    opacity: 0.5;
    border-radius: 0px 0px 10px 10px;
  }
  .banner .bnr_box .bnr_ipt {
    width: 100%;
    height: auto;
    display: flex;
    position: absolute;
    left: 0;
    top: 93px;
  }
  .banner .bnr_box .bnr_ipt p {
    line-height: 88px;
    color: #FFFFFF;
  }
  .banner .bnr_box .bnr_ipt p i {
    margin-left: 25px;
  }
  .banner .bnr_box .bnr_ipt p input {
    vertical-align: middle;
    width: 583px;
    height: 72px;
    background: none;
    margin-left: 10px;
    font-size: 16px;
    border: none;
    outline: none;
  }
  .banner .bnr_box .bnr_ipt p span {
    margin-left: 59px;
  }
  .banner .bnr_box .bnr_ipt p span:hover {
    color: #FBB545;
  }
  .banner .bnr_box .bnr_title {
    width: 100%;
    height: auto;
    margin-top: 130px;
    margin-left: 24px;
  }
  .banner .bnr_box .bnr_title p:nth-child(1) {
    font-size: 70px;
    color: #FFFFFF;
  }
  .banner .bnr_box .bnr_title p:nth-child(2) {
    font-size: 22px;
    font-weight: 400;
    line-height: 30px;
    margin-top: 40px;
    color: #FEFFFF;
  }
  .banner .bnr_box .bnr_title p:nth-child(3) {
    width: 160px;
    height: 50px;
    margin-top: 49px;
    background: #009FE9;
    border-radius: 25px;
    text-align: center;
    line-height: 50px;
    color: #FEFFFF;
    font-size: 17px;
  }
  .showcase {
    width: 1200px;
    height: auto;
    margin: 0 auto;
    margin-top: -112px;
    display: flex;
  }
  .showcase .show_box {
    width: 600px;
    height: auto;
  }
  .showcase .show_box .show_title {
    color: #009FE9;
    font-size: 22px;
    font-weight: bold;
  }
  .showcase .show_box .show_line {
    width: 600px;
    height: 1px;
    background: #DDDDDD;
    margin-top: 19px;
  }
  .showcase .show_box .show_img {
    width: 600px;
    height: 274px;
    margin-top: 18px;
    position: relative;
  }
  .showcase .show_box .show_img img {
    width: 100%;
    height: 274px;
  }
  .showcase .show_box .show_img .show_img_mask {
    width: 100%;
    height: 83px;
    background: #000000;
    opacity: 0.5;
    position: absolute;
    left: 0;
    bottom: 0;
  }
  .showcase .show_box .show_img .show_img_text {
    width: 100%;
    height: 83px;
    margin-left: 12px;
    position: absolute;
    left: 0;
    bottom: 0;
    color: #FFFFFF;
  }
  .showcase .show_box .show_img .show_img_text p:nth-child(1) {
    font-weight: 18px;
    font-weight: 500;
    margin-top: 22px;
  }
  .showcase .show_box .show_img .show_img_text p:nth-child(2) {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.7;
    margin-top: 14px;
  }
  .showcase .dynamic_box {
    width: 540px;
    height: auto;
    margin-left: 60px;
  }
  .showcase .dynamic_box .dynamic_title {
    color: #009FE9;
    font-size: 22px;
    font-weight: bold;
  }
  .showcase .dynamic_box .dynamic_line {
    width: 540px;
    height: 1px;
    background: #DDDDDD;
    margin-top: 19px;
  }
  .showcase .dynamic_box .dynamic_list {
    width: 100%;
    height: auto;
    margin-top: 5px;
  }
  .showcase .dynamic_box .dynamic_list ul {
    margin-left: 18px;
    list-style-type: decimal;
    color: #666666;
  }
  .showcase .dynamic_box .dynamic_list ul li {
    margin-top: 28px;
    font-weight: 400;
  }
  .showcase .dynamic_box .dynamic_list ul li:hover {
    cursor: pointer;
  }
  .sd_line {
    width: 1200px;
    height: 1px;
    margin: 0 auto;
    background: #DDDDDD;
    margin-top: 34px;
  }
  .enterprise {
    width: 100%;
    height: 461px;
    background: url('../img/selectedCases/banner2.png') no-repeat;
    background-size: 100% 100%;
    margin-top: 60px;
  }
  .enterprise .ets_box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
    color: #FFFFFF;
  }
  .enterprise .ets_box .ets_title {
    width: 100%;
    height: auto;
    padding-top: 56px;
  }
  .enterprise .ets_box .ets_title p:nth-child(1) {
    font-size: 24px;
    font-weight: bold;
    float: left;
  }
  .enterprise .ets_box .ets_title p:nth-child(2) {
    font-weight: 400;
    float: right;
  }
  .enterprise .ets_box .ets_list {
    width: 100%;
    height: 280px;
    border: 1px solid #FEFFFF;
    margin-top: 54px;
    display: flex;
  }
  .enterprise .ets_box .ets_list .ets_item {
    width: 300px;
    height: 280px;
    border-right: 1px solid #FEFFFF;
    box-sizing: border-box;
    text-align: center;
    color: #FFFFFF;
  }
  .enterprise .ets_box .ets_list .ets_item p:nth-child(1) {
    font-size: 72px;
    font-weight: bold;
    padding-top: 75px;
  }
  .enterprise .ets_box .ets_list .ets_item p:nth-child(2) {
    font-size: 18px;
    margin-top: 25px;
  }
  .enterprise .ets_box .ets_list .ets_item p:nth-child(3) {
    width: 50px;
    height: 2px;
    background: #D5B345;
    margin-top: 33px;
    margin-left: 50%;
    transform: translate(-50%, 0);
  }
  .enterprise .ets_box .ets_list div:nth-child(4) {
    border: none;
  }
  .case {
    width: 1200px;
    height: auto;
    margin: 0 auto;
    margin-top: 38px;
  }
  .case .case_title {
    width: 100%;
    height: 56px;
    border-bottom: 1px solid #DDDDDD;
  }
  .case .case_title p {
    line-height: 56px;
  }
  .case .case_title p:nth-child(1) {
    color: #5A5A5A;
    font-size: 24px;
    font-weight: bold;
    float: left;
  }
  .case .case_title p:nth-child(2) {
    color: #666666;
    font-weight: 400;
    float: right;
  }
  .case .case_list {
    width: 100%;
    height: 830px;
    margin-top: 24px;
  }
  .case .case_list .case_item {
    width: 380px;
    height: 400px;
    background: #FFFFFF;
    box-shadow: 0px 3px 7px 0px rgba(0, 0, 0, 0.21);
    box-sizing: border-box;
    float: left;
  }
  .case .case_list .case_item img {
    width: 380px;
    height: 230px;
  }
  .case .case_list .case_item p:nth-child(2) {
    color: #666666;
    font-size: 22px;
    font-weight: 500;
    margin-top: 35px;
    margin-left: 30px;
  }
  .case .case_list .case_item p:nth-child(3) {
    color: #888888;
    font-weight: 400;
    margin-top: 25px;
    margin-left: 30px;
  }
  .case .case_list .case_item p:nth-child(4) {
    color: #888888;
    font-weight: 400;
    margin-top: 16px;
    margin-left: 30px;
  }
  .case .case_list .case_item_top {
    margin-top: 30px;
  }
  .case .case_list .case_item_left {
    margin-left: 30px;
  }
  .case .case_list .case_item:hover {
    cursor: pointer;
  }
  .join {
    width: 100%;
    height: 605px;
    background: url('../img/selectedCases/banner3.png') no-repeat;
    background-size: 100% 300px;
    margin-top: 91px;
  }
  .join .join_box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
  }
  .join .join_box .join_title {
    width: 100%;
    height: 55px;
    border-bottom: 1px solid #FFFFFF;
    padding-top: 40px;
    color: #FFFFFF;
  }
  .join .join_box .join_title p {
    line-height: 55px;
  }
  .join .join_box .join_title P:nth-child(1) {
    font-size: 24px;
    font-weight: bold;
    float: left;
  }
  .join .join_box .join_title p:nth-child(2) {
    float: right;
  }
  .join .join_box .join_devep {
    width: 100%;
    height: 465px;
    background: #FFFFFF;
    margin-top: 44px;
    color: #555555;
  }
  .join .join_box .join_devep .devep_title {
    width: 100%;
    height: auto;
    padding-top: 60px;
    text-align: center;
  }
  .join .join_box .join_devep .devep_title p:nth-child(1) {
    font-size: 40px;
    font-weight: 500;
  }
  .join .join_box .join_devep .devep_title p:nth-child(2) {
    font-weight: 400;
    margin-top: 23px;
  }
  .join .join_box .join_devep .devep_list {
    width: 100%;
    height: auto;
    margin-top: 56px;
    margin-left: 24px;
    display: flex;
  }
  .join .join_box .join_devep .devep_list .devep_item {
    width: 270px;
    height: auto;
    margin-left: 87px;
    text-align: center;
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_img {
    width: 102px;
    height: 57px;
    margin-left: 50%;
    transform: translate(-50%, 0);
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_img img {
    height: 57px;
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_text {
    width: 100%;
    height: auto;
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_text p:nth-child(1) {
    font-size: 18px;
    font-weight: 400;
    margin-top: 26px;
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_text p:nth-child(2) {
    width: 50px;
    height: 2px;
    background: #009FE9;
    margin-top: 19px;
    margin-left: 50%;
    transform: translate(-50%, 0);
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_text p:nth-child(3) {
    font-size: 15px;
    font-weight: 400;
    color: #999999;
    margin-top: 15px;
    line-height: 18px;
  }
  .join .join_box .join_devep .devep_list .devep_item .devep_text p:nth-child(4) {
    color: #009FE9;
    font-weight: 400;
    margin-top: 25px;
  }
  .partner {
    width: 100%;
    height: 502px;
    background: #FFFFFF;
    margin-top: 62px;
  }
  .partner .par_box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
  }
  .partner .par_box .par_title {
    width: 100%;
    height: 55px;
    padding-top: 62px;
    border-bottom: 1px solid #DDDDDD;
  }
  .partner .par_box .par_title p {
    color: #5A5A5A;
    line-height: 55px;
  }
  .partner .par_box .par_title p:nth-child(1) {
    font-size: 24px;
    font-weight: bold;
    float: left;
  }
  .partner .par_box .par_title p:nth-child(2) {
    font-weight: 400;
    float: right;
  }
  .partner .par_box .par_img {
    width: 100%;
    height: 282px;
    margin-top: 34px;
  }
  .partner .par_box .par_img img {
    width: 100%;
    height: 282px;
  }
  .welcome {
    width: 100%;
    height: 275px;
    background: url('../img/selectedCases/banner4.png') no-repeat;
    background-size: 100% 100%;
  }
  .welcome .wec_box {
    width: 1200px;
    height: auto;
    margin: 0 auto;
    color: #FFFFFF;
  }
  .welcome .wec_box .wec_small {
    font-weight: 400;
    padding-top: 70px;
  }
  .welcome .wec_box .wec_title {
    width: 100%;
    height: auto;
    margin-top: 32px;
  }
  .welcome .wec_box .wec_title p:nth-child(1) {
    font-size: 40px;
    font-weight: bold;
    float: left;
  }
  .welcome .wec_box .wec_title p:nth-child(2) {
    width: 150px;
    height: 44px;
    border: 1px solid #FFFFFF;
    border-radius: 22px;
    text-align: center;
    line-height: 44px;
    font-weight: 400;
    float: right;
  }
  .footer {
    width: 100%;
    height: 280px;
    margin-top: -2px;
    background: url('../img/public/footer.png') no-repeat;
    background-size: 100% 100%;
  }
  .footer .f_box {
    width: 1200px;
    height: 280px;
    margin: 0 auto;
    display: flex;
  }
  .footer .f_box .f_left {
    width: 428px;
    height: auto;
    padding-top: 60px;
  }
  .footer .f_box .f_left .f_title {
    width: 100%;
  }
  .footer .f_box .f_left .f_title ul {
    display: flex;
    font-weight: 400;
    color: #FFFFFF;
  }
  .footer .f_box .f_left .f_title ul li {
    margin: 0 22px 0 22px;
  }
  .footer .f_box .f_left .f_title ul li:nth-child(1) {
    margin-left: 0;
  }
  .footer .f_box .f_left .f_title ul span {
    width: 2px;
    height: 13px;
    display: inline-block;
    background: #FFFFFF;
  }
  .footer .f_box .f_left .f_contact {
    width: 100%;
    margin-top: 16px;
    display: flex;
  }
  .footer .f_box .f_left .f_contact .f_tel {
    width: 200px;
    text-align: center;
    font-weight: 500;
    color: #FFFFFF;
  }
  .footer .f_box .f_left .f_contact .f_tel .logo {
    width: 178px;
  }
  .footer .f_box .f_left .f_contact .f_tel .phone {
    width: 38px;
    margin-top: 12px;
  }
  .footer .f_box .f_left .f_contact .f_tel .hot {
    width: 100%;
    margin-top: 14px;
  }
  .footer .f_box .f_left .f_contact .f_tel .tel {
    width: 100%;
    font-size: 24px;
    margin-top: 12px;
  }
  .footer .f_box .f_left .line {
    width: 2px;
    height: 176px;
    background: #5A5A5A;
  }
  .footer .f_box .f_left .one {
    margin-left: 22px;
  }
  .footer .f_box .f_left .f_wx {
    width: 132px;
    margin-top: 26px;
    margin-left: 43px;
  }
  .footer .f_box .f_left .f_wx img {
    width: 100%;
    border-radius: 10px;
  }
  .footer .f_box .f_left .two {
    margin-left: 43px;
  }
  .footer .f_box .area {
    width: 361px;
    height: auto;
    padding-top: 77px;
    margin-left: 65px;
  }
  .footer .f_box .area P {
    width: 336px;
    color: #FFFFFF;
    font-size: 14px;
    font-weight: 400;
  }
  .footer .f_box .area .map {
    width: 361px;
    height: 147.5px;
    margin-top: 22px;
    overflow: hidden;
  }
  .footer .f_box .form {
    width: 282px;
    height: auto;
    margin-left: 50px;
    padding-top: 39px;
  }
  .footer .f_box .form .form_icon {
    width: 100%;
    display: flex;
  }
  .footer .f_box .form .form_icon div {
    line-height: 36px;
    background: #000000;
    border: 1px solid #0A0205;
  }
  .footer .f_box .form .form_icon .aly {
    width: 109.6px;
    height: 36px;
  }
  .footer .f_box .form .form_icon .aly img {
    width: 100%;
  }
  .footer .f_box .form .form_icon .tx {
    width: 85.4px;
    margin-left: 4px;
    height: 36px;
  }
  .footer .f_box .form .form_icon .tx img {
    width: 100%;
  }
  .footer .f_box .form .form_icon .tb {
    width: 68.6px;
    margin-left: 4px;
    height: 36px;
  }
  .footer .f_box .form .form_icon .tb img {
    width: 100%;
    padding-top: 8px;
  }
  .footer .f_box .form .us {
    width: 100%;
    margin-top: 16px;
  }
  .footer .f_box .form .us .us_one {
    line-height: 18px;
    color: #FFFFFF;
    font-weight: 400;
  }
  .footer .f_box .form .us input {
    width: 201px;
    height: 35.5px;
    margin-top: 5px;
    border: none;
    outline: none;
    color: #000000;
    font-size: 12px;
    font-weight: 500;
  }
  .footer .f_box .form .us .inline {
    width: 271px;
    display: flex;
  }
  .footer .f_box .form .us .inline span {
    width: 69px;
    height: 35.5px;
    background: #FF741D;
    color: #FFFFFF;
    text-align: center;
    line-height: 35.5px;
    margin-top: 5px;
    margin-left: 1px;
  }
  .footer .f_box .form .us .us_two {
    width: 100%;
    color: #FFFFFF;
    font-weight: 400;
    margin-top: 15px;
  }
  .copyright {
    width: 100%;
    height: 116px;
    background: #333333;
    color: #FFFFFF;
    margin-top: -1px;
  }
  .copyright .cpt_box {
    width: 570px;
    height: auto;
    margin: 0 auto;
    text-align: center;
    padding-top: 18px;
  }
  .copyright .cpt_box p {
    line-height: 28px;
  }