#header {
  position: fixed;/*absolute不可*/
  width:100%;
  height:60px;
  padding: 0 0 0 5%;
  top:0;
  left:0;
  z-index: 10000;
  transition: 0.5s;
}
#header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  transition: background-color 500ms ease;
}

body:not(.home) #header::before {
  background: transparent;
}

body.trigger-open #header::before,
#header.scroll::before,
body.header-hover__active #header::before {
  background: var(--background-dark);
  transition: all 500ms ease;
}

#header.scroll{
  background-color: var(--background-dark);
  transition: 0.5s;
}

#header-inner {
  position:relative;
	-webkit-box-align: center;
	-ms-flex-align: center;
  align-items: center;
  height: 60px;
  transition: all 500ms ease;
}
#header-inner__logo {
  position: relative;
}
#header-inner__logo a,
#header-inner__navi a{
  text-decoration: none;
  transition: 0.2s;
}
#header-inner__logo img{
  height: 50px;
}
#header-inner__logo a:hover{
  opacity: .6;
}
#header-inner__navi a:hover{
  color: var(--color-accent);
  transition: 0.2s;
}
#header-inner__navi {
  display: none;
}
@media only screen and (min-width: 940px) {
  #header {
    padding: 0 5%;
    height:100px;
    box-sizing: border-box;
  }
  #header-inner {
    height:100px;
  }
  #header-inner__logo {
    width: 200px;
  }
  #header-inner__navi {
    display: block;
    margin-right: 0;
    margin-left: auto;
  }
  #header-inner__navi  > nav > ul{
    margin: 0;
    margin-right: -5px;
    position:relative;
    height:100px;
    align-items: center;
    line-height: 1;
  }
  #header-inner__navi  > nav > ul > li{
    margin-right:5px;
  }
  #header-inner__navi  > nav > ul > li a{
    font-family: "Montserrat", sans-serif;
    padding: 10px;
    text-align: center;
    display: inline-block;
    color: white;
  }
  #header-inner__navi  > nav > ul > li a.contact{
    padding: 10px 30px;
    border: 3px solid var(--color-red);
    background-color: var(--color-red);
    color: white;
    font-family: "Montserrat", sans-serif;
    position: relative;
    transition: all .5s ease;
  }
  #header-inner__navi  > nav > ul > li a.contact:hover{
    color: #fff;
    background: transparent;
  }
}
@media only screen and (min-width: 1020px) {
  #header-inner__navi  > nav > ul{
    margin: 0 -10px;
  }
  #header-inner__navi  > nav > ul > li{
    margin-left:10px;
    margin-right:10px;
  }
}
@media only screen and (min-width: 1140px) {
  #header-inner__logo img{
    height: 100px;
  }
}