body{
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    display: block;
    min-width: 600px;
}

#top_container{
    font-size: 1.5rem;
    padding-top: 2rem;
    padding-bottom: 4rem;
    text-align: center;
    position:relative;
    color: white;
    overflow: hidden;
    display: flex;
    justify-content: center;
    gap : 30px;
    background: linear-gradient(135deg, #004A83 0%, #0066CC 100%);
}

#manual_cover_img{
    max-height: 300px;
    width: auto;
}

#top_box{
    font-size: 1.2rem;
    text-align: center;
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    background:rgba(255,255,255,0.15);
    display: inline-block; /*インライン要素にする*/
}

.highlight{
    background: linear-gradient(45deg, #FFE169, #FFA500);
    color: #000;
    padding: 0.1rem;
    border-radius: 20px;
    font-weight: 700;
    margin-top: 1rem;
}

#career_container{
    font-size: 1.5rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
    text-align: center;
    position:relative;
    color: white;
    overflow: hidden;
    background: linear-gradient(135deg, #2d3748, #4a5568);
}

#career_year{
    background: linear-gradient(45deg, #FFE169, #FFA500);
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#main_container{
    color: rgb(0, 0, 0);
    max-width: 1200px;
    display: block;
    margin: auto;
}

#reason{
    text-align: center;
    font-size: 2rem;
    margin:2rem;
}

#features_gird{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature_card{
    background: white;
    border-radius: 1.5rem;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    opacity: 1; 
    transform: translateY(0rem) scale(1); 
    transition: opacity 0.6s, transform 0.6s;
}

.feature_card:hover {
    transform: translateY(-10px); 
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3); 
    border-color: #004A83;
}

.blue_highlight{
    color: #004A83;
    font-weight: 600;
}

.feature_icon{
    padding: 0.2rem;
    width:70px;
    height:70px;
    background: linear-gradient(135deg, #004A83, #0066CC);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    color: white;
    font-size: 3rem;
}


#customer_container{
    background: #f8f9fa;
    display: block;
    margin: auto;
}

#customer_title{
    text-align: center;
    font-size: 2rem;
    padding-top: 2rem;
}

#customer_grid{
    margin: auto;
    display: block;
    max-width: 1200px;
    padding: 1rem;
}


.customer_card{
    background: white;
    border-radius: 15px;
    padding: 1rem;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.customer_imgs{
    max-width:150px;
    height: auto;
    border-radius: 50%;
    margin:auto;
}


.customer_name{
    color: #004A83;
    margin-bottom: 10px;
    font-size: 1.2rem;
}


#reason_container{
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    display: block;
    margin: auto;
}

#reason_title{
    text-align: center;
    font-size: 2rem;
    padding-top: 2rem;
}

#reason_grid{
    margin: auto;
    margin-top: 0px;
    display: block;
    max-width: 1200px;
    padding: 1rem;
}

.reason_card{
    background: white;
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border-left: 5px solid #004A83;
    display: flex;
}

.reason_card h3{
    color: #004A83;
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.reason_imgs{
    max-width: 200px;
    height: auto;
}
    

.reason_number{
    background: linear-gradient(135deg, #004A83, #0066CC);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

#manual_container{
    padding-top: 3rem;
    padding-bottom: 3rem;
    background: linear-gradient(135deg, #004A83, #0066CC);
    color: white;
    text-align: center;
}

#manual_content{
    background: rgba(255, 255, 255, 0.95);
    color: #333;
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}



#manual_title{
    margin-bottom: 3rem;
}

#manual_sample_img{
    max-width: 500px;
    height: auto;
}


#price{
    font-size: 3rem;
    font-weight: 700;
    color: #004A83;
    margin: 20px 0;
}
.note{
    color: #666;
    font-size: 0.9rem
    14.4px;
    margin-bottom: 20px;
}

#benefits_list{
    text-align: left;
    margin: 30px 0;
}

#benefits_list li{
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    position: relative;
    padding-left: 25px;
}

.button{
    display: inline-block;
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 20px 50px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(40, 167, 69, 0.4);
    margin-top: 20px;
}
.button:hover {
    transform: translateY(-8px); 
    box-shadow: 0 12px 25px rgba(40, 167, 69, 0.6);
}


#footer_container{
    text-align: center;
}

footer{
    padding: auto;
    margin:5rem;
}

.fadeup{
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.25s ease forwards;
    animation-timeline: view();     
    animation-range: entry 70% cover 70%;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}