.header-title {
            text-align: center;
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 30px;
        }

        .top-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 40px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }

        .product-img {
            max-width: 300px;
            height: auto;
        }

        .logo-img {
            max-width: 200px;
            height: auto;
        }

        .intro-text {
            margin-bottom: 20px;
            font-size: 1.4rem;
        }

        .main-content-box {
            background-color: #f0f8ff; /* 薄い水色 */
            padding: 30px;
            border-radius: 4px;
            margin-bottom: 30px;
        }

        .section-title {
            font-size: 20px;
            font-weight: bold;
            display: flex;
            align-items: left;
            gap: 10px; /* ■と文字の間隔 */
            margin-bottom: 20px; /* ↓下の余白 */
        }

/* 先頭の■ */
.section-title::before {
    content: "■";
    font-size: 20px;
}
        }
        .section-title::before, .section-title::after {
            content: "ー";
            margin: 0 10px;
        }

        .maintenance-info {
            margin-bottom: 30px;
        }

        .highlight-red {
            color: #e60012;
            font-weight: bold;
        }

        .underline {
            text-decoration: underline;
        }

        .reasons-list {
            list-style: none;
            padding: 0;
            margin: 0 auto;
            max-width: 600px;
        }

        .reasons-list li {
            margin-bottom: 10px;
            font-size: 16px;
            display: flex;
            align-items: flex-start;
        }

        .reason-number {
            margin-right: 10px;
            flex-shrink: 0;

        }

        .footer-links {
            margin-top: 30px;
            margin-left: 15px;
            font-size: 15px;
        }

        .link-item {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }

        .link-item::before {
            content: "☞";
            margin-right: 8px;
            font-size: 18px;
        }

        .small-note {
            font-size: 12px;
            margin-left: 25px;
            color: #666;
        }

        a {
            color: #0066cc;
            text-decoration: underline;
        }

        @media (max-width: 600px) {
            .top-visual {
                flex-direction: column;
            }
        }
        @media screen and (max-width: 767px) {
            .pc-only {
            display: none;
            }
        }
        .mynatouch-maintenance-image {
            width: 600px;
            height: auto;
            display: block;
            margin: 0 auto;
        }