#ai-top {
    padding: 40px 0;
}
#ai-top .intro {
    text-align: center;
    margin-bottom: 40px;
}
#ai-top .ttl {
    text-align: center;
    margin-bottom: 40px;
}
#ai-top .ttl h2 {
    font-size: 32px;
}

#ai-top .contents {
    display: flex;
    justify-content: center;
}
#ai-top .contents ul {
    margin: 0 auto 40px;
    width: 95%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
#ai-top .contents ul li {
    text-align: center;
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: bold;
    background-color: #fba9ab;
    border-radius: 10px;
    padding: 5px 20px;
    width: 33%;
}
#ai-top .contents ul li:first-child {
    width: 100%;
}
#ai-top .block {
    max-width: 1250px;
    width: 85%;
    margin: 0 auto 20px;
    display: flex;
    flex-wrap: wrap;
}
#ai-top .block .item {
    margin-right: 2%;
    margin-bottom: 20px;
    width: 48%;
}
#ai-top .block .item h3 {
    width: 100%;
    padding: 10px 20px;
    text-align: center;
    font-size: 24px;
    background-color: #fba9ab;
    border-radius: 10px;
    font-weight: bold;
    margin-bottom: 20px;
}
#ai-top .block .item li {
    padding: 0 20px;
    font-size: 18px;
    font-weight: bold;
}
#ai-top .block .item li span {
    font-weight: normal;
    font-size: 16px;
}
#ai-top .block .item:nth-child(2n) {
    margin-right: 0;
}
#ai-top .copy {
    text-align: center;
}
#ai-top .copy h3 {
    font-size: 32px;
}
#ai-top .copy h3 span {
    color: #007b95;
    font-size: 38px;
}

@media screen and (max-width: 768px) {
    #ai-top .ttl h2 {
        font-size: 24px;
    }
    #ai-top .block {
        max-width: 1250px;
        width: 95%;
    }
    #ai-top .block .item {
        font-size: 14px;
    }
    #ai-top .copy h3 {
        font-size: 24px;
    }
    #ai-top .copy h3 span {
        font-size: 28px;
    }
}