.registration-box {
    max-width: 860px;
    margin: 10px auto 60px;
    /* padding-top: 80px; */
}
@media (max-width: 960px) {
    .registration-box { padding-top: 70px; }
}

.registration-box .main-heading {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
}

.registration-box .form-section {
    margin-bottom: 50px;
}
.registration-box .form-row {
    margin-bottom: 20px;
}
.registration-box .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
}
.registration-box .form-group label {
    font-size: 14px;
    margin-bottom: 8px;
    font-weight: 500;
}
.registration-box input:not([type="checkbox"], [type="radio"]),
.registration-box select {
    height: 40px;
    padding: 0 14px;
    /* border-radius: 8px;
    border: 1px solid #ddd; */
    font-size: 15px;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
}
.registration-box .form-group input:focus {
    outline: none;
    border-color: #00aacc;
    box-shadow: 0 0 0 3px rgba(0,170,204,0.15);
}


.form-row-2 {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}



.form-group input:not([type="checkbox"], [type="radio"]),
.form-group textarea {
    padding: 10px 14px;
    /* border-radius: 8px;
    border: 1px solid #ddd; */
    font-size: 15px;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #009bbf;
    box-shadow: 0 0 0 3px rgba(0,155,191,0.1);
}


/* 固定フッターボタンエリア */
/* ボタンを囲う、親divに付与することで画面最下部に固定される */
.fixed-submit-area {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1021;
    background: #fff;
    border-top: 1px solid #dee2e6;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.08);
    padding: 12px 20px;
    display: flex;
    align-items: center;
}