.main .bg h2 {
  letter-spacing: .10em;
}

.guide_navi ul {
  left: 420px;
}

.approache {
  margin-bottom: 200px; 
  padding-top: 80px;
}

.approache .image {
  margin: 80px auto 0 !important; 
  width: 650px;
}

.approache .text {
  position: relative;
  top: auto;
  left: auto;
  margin: 0 auto 140px; 
  width: 100%;
}

.approache .scene_wrap {
  margin: 0 auto; 
  width: 858px;
}

.approache .scene_wrap .scene {
  float: left;
  margin: 0 auto 90px;
  margin-right: 84px;
  width: 230px;
  text-align: center;
}

.approache .scene_wrap-2 {
  margin: 0 auto; 
  width: 755px;
}

.approache .scene_wrap-2 .scene {
  float: left;
  margin: 0 15px 40px;
  width: 124px;
  text-align: center;
}

.approache .scene_wrap .scene:nth-child(3n),
.approache .scene_wrap-2 .scene:nth-child(3n) {
  margin-right: 0;
}

.approache .scene_wrap .scene h3 {
  margin: 20px auto 20px; 
  letter-spacing: 4px;
  font-size: 24px;
}

.approache .scene_wrap-2 .scene h3 {
  margin: 20px auto 20px; 
  letter-spacing: 4px;
  font-size: 20px;
}

.approache .scene_wrap-2 .scene:nth-child(4) h3 {
  letter-spacing: 0;
}

.approache .scene_wrap .scene p {
  padding: 0 20px;
}

.approache .scene_wrap-2 .scene p {
  padding: 0 10px;
}

.approache .scene_wrap-3-bg {
  margin: 50px auto;
  padding-top: 130px;
  width: 100%;
  background-image: url("images/bg_sciencewatersystem8.png");
  background-position: center top;
  background-repeat: no-repeat;
}

.approache .scene_wrap-3-bg h2 {
  margin-bottom: 50px;
  letter-spacing: 4px; 
  font-size: 28px;
}

.approache .scene_wrap-3 {
  margin: 0 auto; 
  width: 858px;
}

.approache .scene_wrap-3 .scene {
  float: left;
  margin: 0 auto 40px;
  margin-right: 84px;
  width: 230px;
  text-align: center;
}

.approache .scene_wrap-3 .scene:nth-child(3n) {
  margin-right: 0;
}

.approache .scene_wrap-3 .scene h3 {
  margin: 20px auto 20px; 
  letter-spacing: 4px;
  font-size: 20px;
}

.approache .scene_wrap .scene img,
.approache .scene_wrap-2 .scene img {
  margin: 0 auto !important;
}

.approache .scene_wrap .scene p,
.approache .scene_wrap-2 .scene p {
  margin: 0 auto 40px;
  padding: 0 20px;
  text-align: left;
  letter-spacing: 1.0px;
  font-size: 13px;
  line-height: 2.0em;
}

.approache .point {
  position: relative;
  top: auto;
  left: auto;
  margin: 0 auto;
}

.approache .point .point-1 {
  width: 245px;
}

.approache .point .point-2 {
  width: 244px;
}

.approache .point .point-3 {
  width: 244px;
}

.approache .point .point-4 {
  width: 244px;
}

.voice {
  margin-bottom: 130px;
}

.voice .voice-1 {
  width: 343px;
}

.voice .voice-2 {
  width: 339px;
}

.voice .voice-3 {
  width: 340px;
}

.voice .voice-4 {
  width: 343px;
}

.voice .voice-5 {
  width: 343px;
}

.approache-01 .icon {
  width: 88px;
}

.approache-01 .image {
  width: 500px;
}

.approache-02 .text {
  top: 17.2%;
}

.approache-02 .icon {
  width: 64px;
}

.approache-02 .image {
  width: 503px;
}

.approache-03 .icon {
  width: 72px;
}

.approache-03 .graph {
  width: 500px;
}

.approache-03 .text {
  top: 190px;
  left: 725px; 
  width: 500px;
}

.approache-04 .icon {
  width: 72px;
}

.approache-03 .text .note,
.approache-04 .text .note {
  margin-top: 1em !important; 
  font-size: 13px;
}

.andomore .caution {
  margin: 0 auto 160px;
  padding: 64px 0 68px;
  width: 940px;
  background-color: #f8f8f8;
}

.andomore .caution .icon {
  text-align: center;
}

.andomore .caution h3 {
  margin: 1em auto 1.5em; 
  font-size: 24px;
}

.andomore .caution .lead {
  margin-bottom: 45px;
  text-align: center;
  font-weight: bold; 
  font-size: 18px;
  font-family: "Noto Serif JP", serif !important;
  line-height: 2.0em;
}

.andomore .caution .bt {
  display: block;
  margin: 0 auto;
  padding: 1em 0;
  width: 417px;
  border: 1px solid #1d3348;
  font-weight: bold; 
  font-size: 16px;
  font-family: "Noto Serif JP", serif;
}

.andomore .caution .bt:hover {
  opacity: .7;
}

@media screen and (max-width: 640px) {
  .main .bg h2 {
    letter-spacing: 0;
    font-size: 5.3vw;
  }
  .approache {
    margin-bottom: 0; 
    padding-top: 0;
  }
  .approache .image {
    margin: 40px auto 50px !important; 
    width: 80%;
  }
  .approache .text {
    position: relative;
    top: auto;
    left: auto;
    margin: 0 auto 60px; 
    width: 84%;
  }
  .approache .scene_wrap {
    margin: 0 auto; 
    width: 100%;
  }
  .approache .scene_wrap .scene {
    float: none;
    margin: 0 auto 70px;
    width: 61.3%;
    text-align: center;
  }
  .approache .scene_wrap-2 {
    margin: 0 auto; 
    width: 90%;
  }
  .approache .scene_wrap-2 .scene {
    display: block; 
    float: left;
    margin: 0 auto 40px;
    margin-right: auto;
    width: 33.3%;
    text-align: center;
  }
  .approache .scene_wrap .scene:nth-child(3n),
  .approache .scene_wrap-2 .scene:nth-child(3n) {
    margin-right: auto;
  }
  .approache .scene_wrap .scene h3 {
    margin: 20px auto 20px; 
    letter-spacing: 4px;
    font-size: 6.4vw;
  }
  .approache .scene_wrap-2 .scene h3 {
    margin: 20px auto 20px; 
    letter-spacing: 4px;
    font-size: 4.2vw;
  }
  .approache .scene_wrap .scene img,
  .approache .scene_wrap-2 .scene img {
    margin: 0 auto !important;
  }
  .approache .scene_wrap-2 .scene img {
    margin: 0 auto !important; 
    width: 80%;
  }
  .approache .scene_wrap .scene p,
  .approache .scene_wrap-2 .scene p {
    margin: 0 auto 20px;
    padding: 0 20px;
    text-align: left;
    letter-spacing: 1.0px;
    font-size: 3.4vw;
    line-height: 2.0em;
  }
  .approache .scene_wrap-3-bg {
    margin: 50px auto;
    padding-top: 60px;
    width: 100%;
    background-image: url("images/bg_sciencewatersystem8_sp.png");
    background-position: left top;
    background-size: 85.3%; 
    background-repeat: no-repeat;
  }
  .approache .scene_wrap-3-bg h2 {
    margin-bottom: 40px; 
    font-size: 5.3vw;
  }
  .approache .scene_wrap-3 {
    margin: 0 auto; 
    width: 90%;
  }
  .approache .scene_wrap-3 .scene {
    margin: 0;
    padding: 0;
  }
  .approache .scene_wrap-3 .scene:nth-child(1) {
    margin-bottom: 20px; 
    width: 100%;
  }
  .approache .scene_wrap-3 .scene:nth-child(2),
  .approache .scene_wrap-3 .scene:nth-child(3) {
    -webkit-box-sizing: border-box;
            box-sizing: border-box; 
    width: 50%;
  }
  .approache .scene_wrap-3 .scene:nth-child(3n) {
    -webkit-box-sizing: border-box;
            box-sizing: border-box; 
    margin-right: 0;
  }
  .approache .scene_wrap-3 .scene h3 {
    margin: 10px auto 10px; 
    letter-spacing: 0;
    font-size: 4.8vw;
  }
  .approache .scene_wrap-3 .scene img {
    margin: 0 auto; 
    max-width: 120px;
  }
  .approache .scene_wrap .scene p {
    padding: 0 20px;
  }
  .approache .scene_wrap-2 .scene p {
    padding: 0 1em;
  }
  .approache .point {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto; 
    left: auto;
    margin: 0 auto 80px;
    width: 88.5%;
  }
  .approache .point .point-1,
  .approache .point .point-2,
  .approache .point .point-3,
  .approache .point .point-4 {
    width: 37.9%;
  }
  .approache-01 .icon {
    width: 18.6%;
  }
  .approache-01 .image {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    margin: 0 auto;
    margin-bottom: 30px; 
    width: 80.0%;
  }
  .approache-02 .text {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    margin: 0 auto;
    margin-bottom: 1em; 
    width: 80.0%;
  }
  .approache-02 .icon {
    width: 18.6%;
  }
  .approache-02 .image {
    width: 81.3%;
  }
  .approache-03 .icon {
    width: 18.6%;
  }
  .approache-03 .graph {
    width: 80.0%;
  }
  .approache-03 .text {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    margin: 0 auto;
    margin-bottom: 1em; 
    width: 80.0%;
  }
  .approache-04 {
    margin-bottom: 70px;
  }
  .approache-04 .icon {
    width: 18.6%;
  }
  .approache-03 .text .note,
  .approache-04 .text .note {
    font-size: 3.4vw;
  }
  .andomore .caution {
    margin: 0 auto;
    padding: 30px 0;
    width: 93.3%;
    background-color: #f8f8f8;
  }
  .andomore .caution .icon {
    text-align: center;
  }
  .andomore .caution h3 {
    margin: 1em auto 1.5em;
    font-weight: bold; 
    font-size: 4.8vw;
  }
  .andomore .caution .lead {
    font-size: 4.3vw;
  }
  .andomore .caution .bt {
    width: 82.8%;
    font-size: 4.3vw;
  }
  .andomore .caution .bt:hover {
    opacity: .7;
  }
  .voice {
    margin-bottom: 60px;
  }
  .voice .voice-1,
  .voice .voice-2,
  .voice .voice-3,
  .voice .voice-4,
  .voice .voice-5 {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    margin-bottom: 15px; 
    width: 82.6%;
  }
}