/* スタイルは以前と完全に同一（そのまま維持） */
.related-products-compact {
    max-width: 1280px;
    margin: 40px auto;
    background-color: #f9fafb;
    border-radius: 24px;
    padding: 32px 24px;
    box-sizing: border-box;
}
.related-title {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    font-size: 28px;
    color: #222222;
    text-align: center;
    margin-bottom: 24px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}
.related-card {
    background: #ffffff;
    border-radius: 18px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.related-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.06);
}
.related-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}
.related-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.related-info {
    padding: 14px 16px 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.related-info h3 {
    font-weight: 700;
    font-size: 18px;
    color: #0047AB;
    margin-bottom: 8px;
}
.related-info p {
    font-size: 13px;
    line-height: 1.45;
    color: #555555;
    margin-bottom: 12px;
    flex: 1;
}
.related-btn {
    display: inline-block;
    background: transparent;
    border: 2px solid #0047AB;
    border-radius: 40px;
    padding: 5px 14px;
    font-weight: 600;
    font-size: 12px;
    color: #0047AB;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
    align-self: flex-start;
    margin-top: auto;
}
.related-btn:hover {
    background: #0047AB;
    color: #ffffff;
}
@media (max-width: 900px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}
@media (max-width: 640px) {
    .related-products-compact {
        padding: 24px 20px;
    }
    .related-title {
        font-size: 24px;
        margin-bottom: 20px;
    }
    .related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .related-info {
        padding: 12px 14px 16px;
    }
    .related-info h3 {
        font-size: 16px;
    }
    .related-info p {
        font-size: 12px;
    }
}