.inner-nav nav {
  height: 100%;
  float: none;
  width: 1606px;
  margin: 0 auto;
}

@media screen and (max-width: 1690px) {
  .inner-nav nav {
    margin-left: auto;
  }

  .inner-nav nav {
    height: 100%;
    float: none;
    width: 1445px;
    margin: 0 auto;
  }

  .inner-nav nav ul li {
    line-height: 80px;
    margin-right: 20px;
    position: relative;
    float: left;
  }
}

@media screen and (max-width: 1550px) {
  .inner-nav nav {
    height: 100%;
    float: none;
    width: 1287px;
    margin: 0 auto;
  }

  .inner-nav nav ul li a {
    font-size: 14px;
  }
}

@media screen and (max-width: 1290px) {
  .inner-nav nav {
    height: 100%;
    float: none;
    width: 1241px;
    margin: 0 auto;
  }

  .inner-nav nav ul li {
    line-height: 80px;
    margin-right: 10px;
    position: relative;
    float: left;
  }
}