.container {
  width: 80%;
  margin: 0 auto;
}
@media (min-width: 1600px) {
  .container {
    width: 1250px;
  }
  #home .list .item {
    width: 298px;
    height: 320px;
    padding: 40px 20px 22px 20px;
  }
}
@media (max-width: 1600px) {
  .container {
    width: 1200px;
  }
  #home {
    height: 1045px;
    background-size: 100% 818px;
  }
  #who-we {
    padding-top: 150px;
  }
  #footer .left {
    padding: 50px;
  }
  #footer .right {
    padding: 50px;
  }
  #home .list {
    bottom: -34px;
  }
  #home .list .item {
    width: 258px;
    height: 330px;
    padding: 40px 20px 22px 20px;
  }
}
@media (max-width: 1500px) {
  .container {
    width: 1150px;
  }
  #home {
    height: 945px;
    background-size: 100% 718px;
  }
  #who-we {
    padding-top: 130px;
  }
  #OurUsersSay .container .title2 {
    font-size: 36px;
  }
  #OurUsersSay .container .title3 {
    font-size: 24px;
    margin-bottom: 100px;
  }
  #advantages .list .item {
    width: 340px;
  }
  .nav-links li a {
    font-size: 28px;
  }
  #home .list {
    bottom: -144px;
  }
  #home .list .item {
    width: 258px;
    height: 330px;
    padding: 40px 20px 22px 20px;
  }
}
@media (max-width: 1400px) {
  .container {
    width: 1100px;
  }
  #home {
    height: 1000px;

    background-size: 100% 800px;
  }
  #who-we {
    padding-top: 130px;
  }
  #OurUsersSay .container .title2 {
    font-size: 36px;
  }
  #OurUsersSay .container .title3 {
    font-size: 24px;
    margin-bottom: 100px;
  }
  #advantages .list .item {
    width: 340px;
  }
  .nav-links li a {
    font-size: 22px;
  }
  #footer .left {
    padding: 30px;
  }
  #footer .right {
    padding: 30px;
  }
}
@media (max-width: 1300px) {
  .container {
    width: 1000px;
  }


  #home {
    height: 1000px;

    background-size: 100% 800px;
  }
  #home .list {
    bottom: -55px;
  }
  #home .list .item {
    height: 330px;
  }
  #who-we {
    padding-top: 130px;
  }
  #OurUsersSay .container .title2 {
    font-size: 36px;
  }
  #OurUsersSay .container .title3 {
    font-size: 24px;
    margin-bottom: 100px;
  }
  #advantages .list .item {
    width: 430px;
    height: 284px;
  }
  .nav-links li a {
    font-size: 20px;
  }
  #footer .left {
    padding: 30px;
  }
  #footer .right {
    padding: 30px;
  }
  #home .list {
    bottom: -144px;
  }
  #home .list .item {
    width: 228px;
    height: 330px;
    padding: 40px 20px 22px 20px;
  }
}
@media (max-width: 1200px) {
  .container {
    width: 1000px;
  }
  #certify {
    width: 1000px !important;
  }
  #home {
    height: 1000px;

    background-size: 100% 600px;
  }
  #home .container {
    padding-top: 50px;
  }
  #home .container .p2 {
    font-size: 60px;
    line-height: 80px;
  }
  #home .list {
    bottom: -55px;
  }
  #home .list .item {
    height: 330px;
  }
  #who-we {
    padding-top: 130px;
  }
  #OurUsersSay .container .title2 {
    font-size: 36px;
  }
  #OurUsersSay .container .title3 {
    font-size: 24px;
    margin-bottom: 100px;
  }
  #advantages .list .item {
    width: 440px;
    height: 270px;
  }
  #advantages .box p {
    font-size: 17px;
  }
  #question {
    padding: 84px 0;
  }
  #question .container .right .item {
    height: 55px;
  }
  #question .container .left .p2 {
    font-size: 42px;
  }
  #footer .left .p2 {
    font-size: 20px;
  }
  #footer .left .p1 {
    font-size: 44px;
    margin-bottom: 14px;
  }
  .nav-links li a {
    font-size: 20px;
  }
  #footer .left {
    padding: 30px;
  }
  #footer .right {
    padding: 30px;
  }
  .header2 .container .div1 .logo a {
    font-size: 20px;
  }
}
@media screen and (max-width: 768px) {
  body {
    width: 1200px;
  }
  .container {
    width: 1000px;
  }
}