.why-choose-fixed {
    max-width: 1280px;
    margin: 40px auto;
    background-color: #f9fafb;
    border-radius: 24px;
    padding: 32px 24px;
    box-sizing: border-box;
    overflow: hidden;          /* はみ出しコンテンツをカットするが、カード自体ははみ出さない */
}
.why-title-fixed {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    font-size: 28px;
    color: #222222;
    text-align: center;
    margin-bottom: 24px;
}
.benefits-grid-fixed {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));  /* コンテンツが広がらないように */
    gap: 20px;
}
.benefit-card-fixed {
    background: #ffffff;
    border-radius: 18px;
    border: 1px solid #e2e8f0;
    padding: 18px 12px 16px;
    text-align: center;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    box-sizing: border-box;
    word-break: break-word;    /* 長い単語のはみ出し防止 */
}
.benefit-card-fixed:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.06);
}
.benefit-icon-fixed {
    font-size: 36px;
    margin-bottom: 12px;
}
.benefit-title-fixed {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
    font-size: 17px;
    color: #0047AB;
    margin-bottom: 10px;
    line-height: 1.3;
}
.benefit-desc-fixed {
    font-family: 'Open Sans', sans-serif;
    font-size: 13px;
    line-height: 1.45;
    color: #555555;
    text-align: center;
}
/* タブレット */
@media (max-width: 1000px) {
    .benefits-grid-fixed {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }
}
/* スマホ */
@media (max-width: 640px) {
    .why-choose-fixed {
        padding: 24px 16px;
        margin: 30px auto;
    }
    .why-title-fixed {
        font-size: 24px;
        margin-bottom: 20px;
    }
    .benefits-grid-fixed {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .benefit-card-fixed {
        padding: 16px 12px;
    }
    .benefit-icon-fixed {
        font-size: 32px;
        margin-bottom: 8px;
    }
    .benefit-title-fixed {
        font-size: 16px;
        margin-bottom: 8px;
    }
    .benefit-desc-fixed {
        font-size: 12px;
        line-height: 1.4;
    }
}