html,body {
  height:100%;
  
}
body{
  margin:0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  background:#fff;        
  display: flex;
  flex-direction: column;
  min-height: 100vh; 
  line-height: 1.5;
}
*{
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.main_contents{
  background-color: #FFFFFF;
  margin-inline: auto;
  padding: 20px 0px 0px 0px; 
}

.header{
  font-weight:700;
  font-size:clamp(24px, 2.6vw, 32px);
  letter-spacing:.02em;
  text-align:center;
  color:#00A5D9;
  padding-bottom: 20px;
}

.header_inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content:space-evenly;
}

 .size_btn {
  width: 250px;
}

 .size_btn ul{
  list-style: none;
}

@media (max-width:640px) {
 .size_btn {
    display: none;
  }
}

.size_btn .btn-list {
  width: 100%;
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 5px;
  padding: 0;
  margin: 0;
}


.btn-list li.text {
  font-size: 1em;
  font-weight: 300;
  margin-left: 4px;
  flex: 0 0 5em; 
}

.size_btn .btn-list li.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  line-height: 1;          
  font-size: 1em;          
  font-weight: 300;
  color: #333;
  background-color: #fff;
  border: 2px solid #ccc;
  border-radius: 50%;
  cursor: pointer;
  margin: 0;               
  box-sizing: border-box;
}

.btn-list li.btn:hover {
  border: solid 2px #E98300;
}

.btn-list li.btn.m--active {
  border: solid 2px #E98300;
}

.btn-list li.btn.m--small {
  font-size: 14px;;
  line-height: 2.4;
}

.btn-list li.btn.m--medium {
  font-size: 16px;
  line-height: 2.2;
}
.btn-list li.btn.m--large {
  font-size: 18px;
  line-height: 2.0;
}

.logo-row {
  display:flex; 
  align-items:center; 
  justify-content:center;
  flex-wrap:wrap; 
  margin:15px 0 30px;
  gap: 30px;
  padding-bottom: 30px;
} 
.logo1{
  height: 20px;
}
.logo2{
  height:20px;
}
.logo-items span {
  font-size: 0.75em;
}

.logo-items {
  display:flex;
  flex-direction: row;
  gap:10px;  
}

.lead{
  text-align:center;
  color:#404040;
  margin:6px auto 28px;
  font-size: 1.0625em;
}
@media (max-width:640px) 
  { 
  .lead{
  margin:6px 20px 28px;
  }
  }

.cards{
    display:grid; 
    gap:18px; 
    max-width:980px; 
    margin:35px auto 60px;
    grid-template-columns:1fr 1fr;
    padding-bottom: 20px;
  }
  @media (max-width:720px) 
  { 
    .cards{
      grid-template-columns:1fr;
    } 
  }
  @media (max-width:1024px) 
  { 
     .cards{
      margin:35px 20px 60px;
    }
  }

  .card{
    display:grid; 
    grid-template-columns:120px 1fr; 
    gap:18px;
    padding:16px 18px; 
    border:1px solid #D8E8EE; 
    border-radius:14px;
    background:#EEF9FC; 
    box-shadow:0 8px 18px rgba(0,0,0,.08);
    text-decoration:none; 
    color:inherit; 
    transition:transform .04s ease, box-shadow .2s ease;
  }

  .card:hover{ 
    box-shadow:0 10px 24px rgba(0,0,0,.12);
  }
  .card:active{ 
    transform:translateY(1px); 
  }
  .card:focus{ 
    outline:3px solid rgba(0,165,217,.45); 
    outline-offset:3px;
   }

  .thumb{
    width: 120px;            
    height: 120px;
    border: 1px solid #D8E8EE;
    overflow: hidden;  
  }
  .thumb img{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;    
    object-position: center;
  }
  .title{ 
    margin:0 0 6px; 
    color: #0089B4; 
    font-weight:700; 
    font-size: 1.0625em;
   }
  .desc{ 
    margin:0; 
    font-size: 0.875em;
    color:#556870; 
  }

.notes {
  padding: 20px 0;
  margin: auto;
  max-width: 1200px;
  font-size: 0.8125em;
  color:#333; 
  font-weight: 300;
}

@media (max-width:640px) {
 .notes {
    margin-left: 20px;
    margin-right: 20px;
  }
}
@media (min-width:640px) {
 .notes {
    margin: 0 20px 0 20px;
  }
}
@media (min-width:980px) and (max-width:1290px) {
 .notes {
    margin: 0 70px 0 70px;
  }
}
@media (min-width:1290px) {
 .notes {
    margin: auto;
  }
}

strong {
  font-weight: bolder
}

strong {
  font-weight: 500
}

.notes strong {
  color:#404040;
  font-weight: 700;
}
.notes ul {
  margin:8px 0 0 18px; 
  padding:0;
  list-style: none;
}
.notes ul > li {
  margin:.25em 0;
  color: inherit;
  position: relative; 
  list-style: none;     
}

.notes li::before {
  content: "•";    
  font-weight: 300;                
  display: inline-block;
  width: 1.2em;              
  margin-left: -1.2em; 
  color: inherit;    
}

.notes li a {
  text-decoration: underline;
  color:inherit; 
}


.footer_wrap {
  width: 100%;
  background-color:#00A5D9;
  padding: 20px 0;
}

.footer_inner {
  position: relative;
  width: 85%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

@media (max-width:680px) {
  .footer_inner {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    flex-wrap: wrap;
  }
}

.footer_nav {
  width: 100%;
}

.footer_logo {
  display: flex;
  align-items: flex-end;
  color: #FFF;
  font-size: 0.85em;
  margin-bottom: 20px;
}

@media (max-width:680px) {
  .footer_logo {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
  }
}

.footer_logo img {
  width: 100px;
  margin-right: 5px;
}

.footer_nav .nav-ul {
  display: flex;
  flex-wrap: wrap;
}

@media (max-width:680px) {
  .footer_nav .nav-ul {
    width: 85%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
  }
}

.footer_nav .nav-ul li {
  line-height: 1.0em;
  padding: 0 10px;
  border-right: solid 0.5px #FFFFFF;
}

@media (max-width:480px) {
  .footer_nav .nav-ul li {
    width: 50%;
    font-size: 0.875em;
    padding: 0 6px;
    border-right: solid 0.5px #FFFFFF;
    text-align: center;
    margin-bottom: 5px;
    list-style: none;
  }
}

.footer_nav .nav-ul li:first-of-type {
  padding-left: 0;
}
.footer_nav .nav-ul li:last-of-type {
  border-right: none;
}

@media (max-width:480px) {
  .footer_nav .nav-ul li:nth-child(odd) {
    border-left: solid 0.5px #FFFFFF;
  }
  .footer_nav .nav-ul li:last-of-type {
    border-right: solid 0.5px #FFFFFF;
  }
}

.footer_nav .nav-ul li  a {
  color: #FFFFFF;
  font-size: 0.875em;
  text-decoration: none;
}


@media (max-width:680px) {
  .footer_wrap .copyright_wrap {
    width: 85%;
    margin: 0 auto;
  }
}
@media (min-width:480px) {
  .footer_nav .nav-ul li {
    display: flex;
  }
}
.copyright_wrap {
 width: 100%;
}
.footer_wrap .copyright,
.footer_wrap .no {
  color: #FFFFFF;
  font-size: 0.8125em;
  text-align: right;
}

@media (max-width:680px) {
  .footer_wrap .copyright,
  .footer_wrap .no {
    margin-top: 5px;
    text-align: center;
  }
}

.footer_wrap .no {
  text-align: right;
}