/* ----------スマホ用レスポンシブ----------- */
@media screen and (max-width: 768px) {
 h1,h2,h3{
  margin-top: 5px;
  margin-bottom: 5px;
}

h4 {
  font-size: 15px;
}

h3 {
  font-size: 18px;
}

h2 {
  font-size: 22px;
}

h1 {
  font-size: 25px;
}

p{
  font-size: 15px;
}



header {
    max-width: 100%;  /* 1200px以上にならないように制限 */
    height: 50px;     /* 高さを小さく */
    line-height: 50px;
    padding: 0 10px;  /* 横余白を減らす */
    box-sizing: border-box;
  }

.logo{
    display: block;
    padding: 0 10px;
}

.open-overlay {
        width: 45px;
        height: 45px;
        top: 5px;
        right: 5px;
        padding: 5px 5px;
        border: none;
        border-radius: 0;
    }

.logo h3{
   font-size: 15px;;
}
  /*-------main-----------*/
  main {
    max-width: 100%;
  }
  /*-------btn-sticky-----------*/
.btn-sticky {
  padding: 0.5em 1em;
  box-shadow: 0px 2px 2px rgba(0, 0, 0, 0.29);
}
.btn-sticky:active {
  box-shadow: inset 0 0 2px rgba(128, 128, 128, 0.1);
  transform: translateY(2px);
}
  /*-------#low-hero-----------*/
   #low-hero{
    width: 100%;
    max-width: 768px;
    height: 100vw;
    background-size: cover;
    margin-top: 50px;
    margin-bottom: 50px;
}
/*---------low-section1-------------*/
#low-section1{
  padding-top: 50px;
  width: 100%;
  height: 400px;
}

#low-section1-text{
  width: 325px;
  padding:0px;
  margin-top: 30px;
}

/*---------lower-back---------*/
#lower-back {
  width: 100%;
  height: 750px;
  margin-top: -50px;
}

#lower-back-box01{
  height: 300px;
  width: 100%;
  padding-left: 3%;
  gap: 3%;
}

.low-back-pain2{
  display: block;
  width: 150px;
  height: 200px;
}

.lower-back-text{
  width: 60%;
  padding-left: 5%;
}

.lower-back-text01{
  text-align: left;
  font-size: 25px;
}

#lower-back-box02{
  height: 250px;
  width: 100%;
  gap: 0;
}

.low-back-pain3{
  width: 150px;
  height: 150px;
}

/*---------muscles---------*/
#muscles {
  padding: 0;
  width: 90%;
  height: 1350px;
}

#muscles-img1{
  height: 200px;
  width: 100%;
}

#muscles-text{
  width: 100%;
  padding: 0;
}

#muscles-img2{
  height: 200px;
}
/*---------low-back-pain-consept-----------*/
#low-back-pain-consept{
  width: 100%;
  height: 1800px;
  margin-top: 0;
  background: linear-gradient(to bottom,#e4e4e4, #ececec);
}

#consept-img{
  height: 500px;
  width: 100%;
}

.low-back-pain-img{
  height: 500px;
  width: 100%;
  outline: none;
  box-shadow:none
}

.low-back-pain-img2{
  height: 500px;
  width: 100%;
}

#low-back-pain-consept2{
  width: 100%;
  height: 1600px;
  background: none;
  margin-top: 0;
}

#low-back-pain-consept-text01,
.low-back-pain-consept-text02{
  width: 80%;
  height: 150px;
  padding: 0;
}

.low-back-pain-consept-box1{
  width: 100%;
  height: 500px;
  padding: 0;
  gap: 0;
}

.low-back-pain-consept-box1-text{
  width: 60%;
  padding-left: 5%;
}

.low-back-pain-consept-box1-img{
  width: 180px;
}

.low-back-pain-img3{
  height: 400px;
  width: 180px;
  background-position: center 10px;
  }


.low-back-pain-consept-box2{
  width: 100%;
  height: 300px;
  padding: 0 50px;
}

.low-back-pain-consept-box2-img{
  width: 100%;
  height: 200px;
}

.low-back-pain-consept-box3{
  margin: 20px auto;
  width:90%;
  height: 150px;
  gap: 0;
}

.low-back-pain-consept-box3-text{
  width: 60%;
}

.low-back-pain-consept-box3-img{
  width: 40%;
  height: 200px;
}
/*---------low-review-----------*/
#low-review{
  margin: 50px auto;
  width: 100%;
  height: 1500px;
}

.low-review-wrapper {
  padding: 20px 0;
  width: 90%;
  height: 350px;
}

.low-review-title{
  width: 100%;
  height: 50px;
}

.low-review-box{
  width: 100%;
  height: 230px;
  padding: 10px 40px;
}

/*------low-menu-------------*/
#low-menu{
  width: 100%;
  height: 2400px;
  margin: 0 auto;
  margin-top: 50px;
}

.ribbon {
  margin: 50px 5%;
}

.low-menu-wrapper{
  margin:0 auto;
}

.low-menu-box{
  width: 90%;
  height: 500px;
  margin: 30px auto;
  margin-left: auto;
  margin-right: auto;
  display: block;
  padding: 20px;
}

.low-menu-title-box{
  width: 100%;
  height: 150px;
  margin: 0;
  margin-bottom: 0;
  gap: 0;
}

.low-menu-title{
  width: 100%;
}

.low-menu-text{
  margin:0;
}

.low-menu-img{
  width: 100%;
  height: 130px;
}

.low-menu-img1{
  width: 80%;
  height: 130px;
}

.low-menu-img2,
.low-menu-img3,
.low-menu-img4{
  width: 40%;
  height: 130px;
}



/*------map-------------*/

#map{
  width: 100%;
  height: 600px;
  margin-top: 0;
}

#map-title-box{
  width:100%;
  height: 150px;
  gap: 0;
}

.map-title{
  width:100%;
  height: 150px;
  margin-top: 0;
  padding-top: 30px;
  padding-left: 3%
}

.emboss-raiset2{
  font-size: 18px;
}

#map-img{
  width: 60%;
  height: 200px;
  object-fit: cover;
  margin-top: 50px;
}

#adress{
  width: 80%;
  height: 200px;
  margin: 50px;
}

.tel h2 {
    font-size: 20px;
}

/*----------under-nav---------*/
    .under-nav{
      height: 350px;
      padding: 30px 0px;
      background-color: #eee;
    }
    .column{
      margin: 0 auto;
      width: 320px;
    }

    .column-list{
      text-align: center;
      float: left;
      width: 50%;
    }

    .column-list li{
      text-align: center;
    }

    .under-btn{
      width: 99%;
    } 

  .btn-sticky {
    padding: 1em;
}

}