body{
  max-width: none;
}
article{
  max-width: 1100px;
  align-items: center;
  margin: 0 auto;
  position: relative;
}
/*ヘッダー*/
header{
  margin-bottom: 50px;
}
.header-mb{
  margin-bottom: 20px;
}
/*ナビゲーション*/
#navi-co{
  display: flex;
  position: relative;
  top:10%;
  left: 4%;
}
#navi-co div{
  margin-right: 10px;
  font-size: 13px;
}
/*メイン*/
h2{
  font-size: 30px;
  text-align: center;
  margin-top: 70px;
}
#redline{
  width: 100%;
}
/*コンタクトフォーム*/
#contactform{
  max-width: 896px;
  display: block;
  margin: 0 auto;
}
#inner_contactform{
  margin-left: 20px;
  margin-right: 20px;
}
#descriprionp{
  margin-top: 65px;
  margin-bottom: 54px;
  line-height: 24px;
}
#descriprionp b{
  color: #DC1818;
}
#contactform a{
  color: #0065BB;
  text-decoration:underline;
}
#contactform a:hover{
  text-decoration:none;
}
.formtitle{
  display: flex;
  align-items: center;
}
.must{
  width: 64px;
  height: 25px;
  background-color: #DC1818;
  margin-right: 5px;
  font-size: 13px;
  color: #fff;
  text-align: center;
  line-height: 25px;
}
.contentname{
  font-size: 16px;
  height: 25px;
  line-height: 25px;
}
.notmust{
  width: 64px;
  height: 25px;
  background-color: #9A9A9A;
  margin-right: 5px;
  font-size: 13px;
  color: #fff;
  text-align: center;
  line-height: 25px;
}
input{
  background-color: #ecebeb;
  width: 100%;
  height: 50px;
  margin-top: 10px;
  margin-bottom: 29px;
  border-radius: 5px;
  padding-left: 20px;
}
textarea{
  background-color: #ecebeb;
  width: 100%;
  height: 198px;
  margin-top: 10px;
  margin-bottom: 65px;
  border-radius: 5px;
  padding: 10px 20px;
}
/*送信ボタン*/
#send_button{
  width: 252px;
  height: 60px;
  display: block;
  margin: 0 auto;
  color: #0065BB;
  border: solid 1px #0065BB;
  border-radius: 12px;
  -webkit-transition: all 0.3s ease;
  -moz-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all  0.3s ease;
}
.send_button input{
  line-height: 60px;
  padding-left: 89px;
  font-size: 18px;
  background-color: #fff;
}
#send_button:hover{
  background-color: #0065BB;
  color: #fff;
  cursor : pointer;
}
#send_button:active{
  background-color: #0065BB;
  color: #fff;
  cursor : pointer;
}

/*区切り線*/
#divine-line{
  max-width: 896px;
  display: block;
  margin: 0 auto;
}
#divine-line p{
  border-bottom: 1px solid;
  margin: 0 20px;
  margin-top: 75px;
}

/*プライバシーポリシー*/
#privacy_policy{
  max-width: 896px;
  display: block;
  margin: 0 auto;
}
#inner_privacy_policy{
  margin-left: 20px;
  margin-right: 20px;
}
h3{
  margin: 0 auto;
  margin-top: 75px;
  margin-bottom: 72px;
  max-width: 351px;
  height: 38px;
  line-height: 38px;
  border: solid 1px;
  text-align: center;
}
#subp{
  margin-bottom: 52px;
  line-height: 22px;
}
#privacy_policy_contents h4{
  font-size: 18px;
  margin-bottom: 22px;
  color: #0065BB;
}
#privacy_policy_contents p{
  font-size: 16px;
  margin-bottom: 42px;
  line-height: 22px;
}
#space{
  height: 10px;
}
/*エラーメッセージ*/
.err_msg{
  color: #DC1818;
  font-size: 22px;
  font-weight: bold;
}
/*メール送信後*/
#success_message{
  display: block;
  max-width: 760px;
  margin: 0 auto;
}
#success_message h2{
  margin-left: 20px;
  margin-right: 20px;
  margin-bottom: 70px;
  padding: 12px 0;
  border-bottom: 1px solid #DC1818;
}
#success_message p{
  margin-left: 20px;
  margin-right: 20px;
  text-align: left;
  line-height: 22px;
}

#success_message a{
  display: block;
  font-size: 18px;
  margin-top: 80px;
  text-align: center;
  color: blue;
  text-decoration: underline;
}

#success_message a:hover{
  text-decoration: none;
}

/*スマホ対応*/
@media (max-width:540px){
  #navi-co{
    display: none;
  }
  #success_message h2{
    font-size: 26px;
  }
}

/*ヘッダー背景*/
.widescreen{display: none;}
@media screen and (min-width:1100px) {
  .widescreen{
    display: block;
  }
  .middlescreen{
    display: none;
  }
  .top-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 287px; /* 背景を適用したい高さ */
    background-color: #2DB9A3; /* ここに適用したい背景色を指定 */
    z-index: -1;
  }
}