.header {
         display: grid;
         position: fixed;
         top: 0;
         left: 0;
         width: 100%;
         height: 10vw;  
         background: black;
         z-index: 2;
    }
    
    .container {
         display: flex;     
         justify-content: space-between;
         margin: auto 1em;
    }
    
    .hamburger {   
         margin-top: 0.8vh;
         width: 7.5vw;
         height: 3vh;
    }

    .gamboo_logo {
         cursor: pointer;
         margin: 0.8vh;  
         height: 3vh;
         width: auto;
         align-items: center;
    }
 
    .menu_off {
         margin-top: 10vw;
         background: black;
         position: fixed;
         inset: 0; 
         opacity: 0%;
         height: 0;
         overflow: hidden;
         transition: 0.5s;
        
    }
 
    .menu_on {
         margin-top: 10vw;
         background: black;
         position: fixed;
         inset: 0; 
         opacity: 100%;
         transition: 0.3s;
         z-index: 2;
    }
    
    .menu_on div {
         margin-top: 25vw;
         text-align: center;
    }

    .menu_on div a {
         text-decoration: none; 
    }
    
    .menu_on div p {
         font-size: 8.5vw;
         font-weight: bold;
         margin:-3rem auto 6rem auto;
         color: white;
         max-width: 70vw;
    }

    .major_compartment {
         height: 0.25vh;
         width: 90vw;
         border: none;
         background-color: #a9a9a9;
         margin: 6.5vw auto;
    }
 
    .main_title_logo {
         display: flex;
         align-content: center;
         justify-content: center;
         padding: 25px;
         margin-top:15vw; /*ヘッダー分*/
    }
    
    .main_title_logo img {
         width: auto;
         height: 25.5vw;
    } 

    .major_section_title {
         display: flex;
         align-content: left;
         justify-content: left;     
    }

    .major_section_title img {
         opacity: 30%;
         height: 5vh;
         width: auto;
         margin-left: 4vw;
         margin-top: -1.5vh;
         margin-bottom: 5vh;      
    }
         
    .index_content_outline {
         display: flex;
         justify-content: flex-start;
         margin-left: 10vw;
    }

    .index_content_outline img {
         width: auto;
         height: 8.5vw;
         margin-bottom: 2vw;
    }

    @keyframes myblink {
	0% {
		opacity: 0;
	}
	100% {
		opacity: 85%;
	}
   }

    .index_content_new_icon {
     display: grid;
     position: absolute;
     place-items: center;
     background:#F43182;
     width:4rem;
     height:2rem;
     border-radius:12.5px;
     -webkit-animation: myblink 1.5s ease-in-out infinite alternate;
     z-index: 2;
     margin-left: -30px;
     margin-top: -15px; 
    }
   
    .index_content_new_icon p {
     color: white;
     font-weight: bold;
     font-size: 110%;
     text-align:center;
     align-items: center;
     inset: 0;
     margin: 0;
    }
    
    .index_content {
         display: flex;
         align-items: center;
         flex-direction: column;
         text-align: left;
         position: relative;
         margin-top: -20px;
         margin-bottom: 10px;   
         font-size: 6vw;
         color: black;
    }
    
    .index_content_icon {
         opacity: 20%;
         width: auto;
         height: 35vw;
         margin-top: 10vw;
    } 

    .index_content p {
         position: absolute;
         margin-bottom: 5px;
         max-width: 75vw;
         width: 75vw;
         line-height: 40px;
         font-weight: bold;
         text-decoration: underline;
    }
  
    .index_content_transaction {
         display: flex;
         justify-content: center;
         text-align: center;
         margin-top: -3.8vw;
         margin-bottom: 6.4vw;
    }
  
  
    .index_content_transaction div {
         border: none;
         border-radius: 10px;
         background: black;
         width: 65vw;
         height: 15vw;
         margin: 10vw;
    }
  
    .index_content_transaction div p {
         color: white;
         font-weight: bold;
         font-size: 6vw;
         margin: 3vw auto;
    }

    .index_content_transaction div a {
         text-decoration: underline;
         color: inherit;
    }

      .update {
        margin: -2vh auto 4vh;
        display: block;
    }

    .update li {
        font-weight:bold;
        font-size: 110%;
        margin: auto 1vw;
        list-style: none;
        max-width: 75vw;
    }

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

    .about_detail {
        display:flex;
        justify-content: center;
        margin-top: -1vh;
        margin-bottom: 4vh;
    }

    .about_detail div {
        border: solid 0.2em #a9a9a9;
        border-radius: 20px;
        text-align: left;
        padding: 3.5vw;
    }

    .about_detail p {
        font-size: 135%;
        max-width: 80vw;
        width: 80vw;
    }

    
    .about_doctor_section {
        display: flex;
        justify-content: center;
        text-align: center;
    }

    .doctor_image_section {
        flex-direction: column;
    }

    .doctor_image_section p {
        max-width: 30vw;
        width: 30vw;
        font-weight: bold;
        font-size: 55%;
        line-height:0.5em;
    }

    .balloon {
        position: relative;
        display: inline-block;
        padding: 1.5em;
        color: black;
        font-size: 115%;
        background: #FFF;
        border: solid 3px #a9a9a9;
        border-radius: 10px;
        max-width: 42.5vw;
        width: 42.5vw;
        text-align: center;
        margin: auto;
        margin-bottom: 5vh;
    }
      
      .balloon:before {
        content: "";
        position: absolute;
        right: -2.2em;
        top: 1.2em;
        border: 0.9em solid transparent;
        border-left: 1.7em solid #FFF;
        z-index: 2;
    }
      
      
      .balloon:after {
        content: "";
        position: absolute;
        right: -2.6em;
        top: 1.2em;
        border: 0.9em solid transparent;
        border-left: 1.7em solid #a9a9a9;
        z-index: 1;
    }
      
      .balloon p {
        margin: 0;
        padding: 0;
    }
    
      .dr_tohyama_image {
        height: 5.5em;
        width: auto;
        margin: auto 6.5vw;
    }

      .footer_section {
        background: black;
        text-align: center;
        padding: 1em 3.5em;
        bottom: 0;
        margin-top: 2.5em;
    }

      .footer_section p {
        font-weight: bold;
        color: white;
    }