.sum.header {
  display: flex;
  padding: 15px 0px;
}
.sum .nav {
  gap: 15px;
}
.sum.header a {
  font-size: 16px;
}
.sec_logo {
  width: 60px;
  height: auto;
  margin-left: 20px;
}
.brand_logo {
  width: 210px;
  height: auto;
}
.main_logo {
  display: flex;
}
.flex_d_logo {
  display: flex;
  align-items: center;
}
.dropdown-content { min-width: 460px; }

@media screen and (max-width: 1280px) {
  .dropdown-content {
      min-width: 420px;
    }
}
@media screen and (max-width: 1077px) {
  /* .sum .nav, .sum .headericon{
        display: none;
    } */

  .dropdown-content {
    width: 100%;
    min-width: max-content;
  }

  .sum .headericon {
    justify-content: center !important;
  }
  .sum.header {
    display: flex;
    flex-direction: column;
    padding: 20px;
    padding-left: 60px;
  }

  .sum .nav {
    display: none;
    flex-direction: column;
    justify-content: left;
    margin: unset;
  }

  .sum a {
    text-align: left;
  }

  .sum .headericon {
    justify-content: left;
    display: none;
  }

  .togglebar {
    display: inline;
  }

  .chairman img {
    height: 50px;
  }

  .chairman p,
  .chairman span {
    font-size: small;
  }

  .dropdown {
    text-align: -webkit-center;
  }
}

@media screen and (max-width: 900px) {
  .togglebar {
    right: 35px;
  }
  .sum.header {
    padding: 10px;
    padding-left: 40px;
  }

  .firstimg {
    left: 7%;
  }
  .sum.header {
    padding: 15px !important;
  }
 
}

@media screen and (max-width: 700px) {
  #backtotop {
    margin-right: 10px;
    height: 30px;
    width: 50px;
  }
}

@media screen and (max-width: 600px) {
  .chairman img {
    height: 30px;
  }

  .chairman p,
  .chairman span {
    font-size: 12px;
  }

  .footer p {
    font-size: 7px;
  }
  .brand_logo {
    width: 150px;
    height: 100%;
  }
  .sec_logo {
    width: 40px;
    height: 100%;
  }
}

@media screen and (max-width: 400px) {
}
@media screen and (max-width: 390px) {
}

@media (max-width: 1024px) {
  .dropdown-content {
    left: 50%;
    transform: translateX(-50%);
  }
}