.tit_detail h1 {
    font-size: 1.8em;
    font-weight: 700;
}

.send_btn {
    max-width: 316px;
    width: 100%;
    margin: auto;
    padding: 24px 0;
    color: #212121;
    border: 1px solid #212121;
    text-align: center;
}