<section class="s-5">
    <div class="bg-inner">
      <div class="container">
        <header>
            <div class="h-wrapper5">
              <h1 class="header-logo5">
                <img src="#" alt="ロゴ画像">
              </h1>
              <div class="h-nav5">
                <ul class="h-nav-items5">
                  <li class="nav-item5"><a href="">ホーム</a></li>
                  <li class="nav-item5"><a href="">会社概要</a></li>
                  <li class="nav-item5"><a href="">施行事例</a></li>
                  <li class="nav-item5"><a href="">業務内容</a></li>
                  <li class="nav-item5"><a href="">お問い合わせ</a></li>
                </ul>
              </div>
            </div>
        </header>
      </div>
    </div>
  </section>

*{
  box-sizing: border-box;
}

h1,h2,h3,h4,h5,h6,p{
  margin: 0;
  padding: 0;
  font-size: 100%;
  font-weight: 400;
}

li {
  list-style: none;
}

ul,ol{
  margin: 0;
  padding: 0;
  list-style-type: none;
}

a {
  text-decoration: none;
  color: rgb(0, 0, 0);
  transition: 0.6s;
  -webkit-transition: 0.6s;
  -moz-transition: 0.6s;
  -ms-transition: 0.6s;
  -o-transition: 0.6s;
}

html,body{
  width: 100%;
  margin: 0 auto;
  padding: 0;
  text-align: center;
  font-size: calc((100vw - 770px) / 325 + 14px);
  font-family: 'Noto Sans JP', sans-serif;
}

@media screen and (min-width:768px) {
.sp{
  display: none;
}
}

@media screen and (max-width:767px) {
.pc{
  display: none;
}
}

.container{
  max-width: 1500px;
  margin: 0 auto;
}

@media screen and (max-width:767px) {
    section{
        padding: 20px 0 0 0;
    }
}

.header-wrap {
  width: 100%;
}

.bg-inner {
  background-color: rgb(0, 187, 221);
}

.h-wrapper5 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100px;
  padding-left: 20px;

}

.header-logo5 {
  width: 150px;
    /* 画像入れたら削除でOK */
    height: 50px;
    background-color: rgb(246, 211, 211);
}

.header-logo5 img {
  width: 100%;
  min-height: auto;
  object-fit: cover;
  vertical-align: bottom;
}

.h-nav-items5 {
  display: flex;
  justify-content: space-between;
}

.h-nav-items5 li {
  margin-right: 20px;
}

.h-nav-items5 li a {
  display: block;
  font-size: 1rem;
  color: rgb(49, 1, 1);
  background-color: rgb(255, 255, 255);
  border: 1px solid rgb(49, 1, 1);
  border-radius: 10px;
  text-align: center;
  padding: 15px 40px;
}

.h-nav-items5 li a:hover {
  background-color: rgb(126, 196, 236);
  background-image: linear-gradient(102deg, rgb(126, 196, 236) 19%, rgb(153, 218, 210) 60%, #c8edf0 100%);
  box-shadow: 9px 10px 18px -8px rgb(27, 24, 24);
  border-radius: 10px;
}

.main-navigation li a:hover {
  color: rgb(0, 187, 221);
}

@media screen and (max-width:1100px) {
  .h-nav-items5 li {
    margin-right: 10px;
  }

  .h-nav-items5 li a {
    font-size: 0.8rem;
    padding: 15px 20px;
  }
}