nav .pc_header {
  height: 100px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: #FFF;
  text-align: center;
  line-height: 60px;
  color: #FFF;
  font-size: 18px;
}
nav .pc_header .logo {
  height: 55px;
  display: inline-block;
  vertical-align: middle;
  position: absolute;
  top: 23px;
  left: 30px;
}
nav .pc_header .btnmenu {
  position: absolute;
  right: 150px;
  top: 26px;
}
nav .pc_header .btnmenu li {
  display: inline-block;
  color: #000;
  letter-spacing: 4px;
  padding-left: 20px;
  padding-right: 20px;
  font-size: 15px;
  height: 50px;
  line-height: 17px;
  margin-left: -5px;
  vertical-align: middle;
  text-transform: uppercase;
  text-align: center;
  font-family: serif;
}
nav .m_header {
  height: 80px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: #FFF;
  text-align: center;
  line-height: 60px;
  color: #FFF;
  font-size: 18px;
  display: none;
}
nav .m_header .logo {
  height: 50px;
  display: inline-block;
  vertical-align: middle;
  margin-left: 0px;
  position: absolute;
  left: 30px;
  bottom: 17px;
}
nav .m_header .menuButton {
  width: 60px;
  height: 60px;
  position: absolute;
  right: 10px;
  top: 10px;
  cursor: pointer;
}
nav .m_header .menuButton li {
  background-color: #000;
  height: 1px;
  width: 30px;
  left: 15px;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  -o-transition: all 0.3s;
  transition: all 0.3s;
}
nav .m_header .menuButton li:nth-child(1) {
  top: 22px;
}
nav .m_header .menuButton li:nth-child(2) {
  top: 29px;
}
nav .m_header .menuButton li:nth-child(3) {
  top: 36px;
  width: 15px;
  left: 30px;
}
nav centerwrap {
  text-align: left;
  padding-left: 30px;
  padding-right: 30px;
}
.menuList {
  display: none;
  background-color: #FFF;
  position: fixed;
  z-index: 101;
  width: 100%;
  height: calc(100% - 60px);
  top: 80px;
  text-align: center;
}
.menuList li {
  height: auto;
  line-height: 35px;
  color: #000;
  font-size: 20px;
  padding: 15px;
}
.menuOpen .menuList {
  display: block;
}
footer {
  background-color: #000;
  padding: 30px;
  text-align: center;
}
footer section.s1 {
  line-height: 1.6;
  color: #E7F3EA;
  font-size: 14px;
}
html[url1="about"] nav .pc_header .btnmenu li[page="about"],
html[url1="contact"] nav .pc_header .btnmenu li[page="about"],
body[type="projects"] nav .pc_header .btnmenu li[page="projects"],
body[type="qa"] nav .pc_header .btnmenu li[page="qa"],
html[url1="service"] nav .pc_header .btnmenu li[page="service"],
html[url1="support"] nav .pc_header .btnmenu li[page="support"] {
  color: #b6a300;
}
/*  rwd  */
/* -----------------------------------*/
@media screen and (max-width: 768px) {
  nav centerwrap {
    text-align: center;
  }
  nav .m_header {
    display: block;
  }
  nav .pc_header {
    display: none;
  }
}