.redbold{
    color: #FF0004;
    font-weight: bold;
  }
.fs-l-page {
    overflow-x: hidden;
}
<style>
/* --- container --- */
.packaging-wizard {
    font-family: "Helvetica Neue", Arial, sans-serif;
    max-all-width: 600px;
    margin: 20px auto;
    padding: 25px;
    background-color: #fffaf5; 
    border-radius: 20px;
    color: #5d5247;
    box-shadow: 0 10px 25px rgba(141, 126, 111, 0.08);
}

/* --- (Segmented Control) --- */
.packaging-tabs {
    display: flex;
    background-color: #ede4d9;
    padding: 4px;
    border-radius: 12px;
    margin-bottom: 25px;
}

.packaging-tabs input[type="radio"] { display: none; }

.packaging-tabs label {
    flex: 1;
    text-align: center;
    padding: 10px;
    cursor: pointer;
    border-radius: 9px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.packaging-tabs input[type="radio"]:checked + label {
    background-color: #fff;
    color: #333;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* --- 有料タブ --- */
.paid-cards-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 20px;
}

.paid-cards-nav input[type="radio"] { display: none; }

.paid-cards-nav label {
    background: #fff;
    border: 1px solid #e0d7cd;
    border-radius: 12px;
    padding: 15px 5px;
    text-align: center;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    flex-direction: column;
}

.paid-cards-nav input[type="radio"]:checked + label {
    background-color: #f3e5dc;
    border-color: #c9b09c;
}

.tile-name { font-size: 0.8rem; margin-bottom: 4px; }
.tile-price { font-size: 0.75rem; font-weight: bold; color: #8d7e6f; }

/* --- フォーム --- */
.card-content {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    border: 1px solid #eeeae5;
    margin-top: 10px;
}

.packaging-wizard select, 
.packaging-wizard input[type="text"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #e0d7cd;
    border-radius: 6px;
    font-size: 0.85rem;
    box-sizing: border-box;
}

/* セクション非表示 */
.pack-section, .card-details { display: none; }
#section-free { display: block; } /* По умолчанию */
</style>