/* --- ベーススタイル --- */
        :root {
            --primary-color: #0044cc; /* 信頼感のある青 */
            --accent-color: #f39c12;  /* 強調色のオレンジ */
            --text-color: #333;
            --light-bg: #f4f8fb;
            --white: #ffffff;
            --gray-border: #e0e0e0;
        }

        body {
            font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
            color: var(--text-color);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            background-color: var(--light-bg);
        }

        h1, h2, h3 { font-weight: bold; margin: 0 0 20px 0; }
        p { margin: 0 0 20px 0; }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; padding: 0; margin: 0; }
        img { max-width: 100%; height: auto; }
        
        .container-warranty {
            max-width: 960px; /* タブレット向けに少し狭めに設定 */
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 50px 0;
            background-color: var(--white);
            margin-bottom: 20px;
        }
        section:last-child { margin-bottom: 0; }

        .section-title-warranty {
            text-align: center;
            font-size: 26px;
            color: var(--primary-color);
            margin-bottom: 40px;
            position: relative;
        }
        .section-title::after {
            content: "";
            display: block;
            width: 50px;
            height: 3px;
            background-color: var(--accent-color);
            margin: 15px auto 0;
        }

        /* --- ヘッダー --- */
        /* header {
            background-color: var(--white);
            padding: 15px 0;
            box-shadow: 0 1px 3px rgba(0,0,0,0.1);
        } */
        .logo-warranty {
            font-size: 20px;
            font-weight: bold;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }
        .logo-warranty span {
            background-color: var(--primary-color);
            color: white;
            padding: 2px 6px;
            margin-right: 8px;
            border-radius: 4px;
            font-size: 14px;
        }

        /* --- メインビジュアル --- */
        .hero-warranty {
            background: linear-gradient(135deg, var(--primary-color), #003399);
            color: white;
            text-align: center;
            padding: 60px 20px;
        }
        .hero-warranty h1 { font-size: 28px; margin-bottom: 15px; }
        .hero-warranty p { font-size: 16px; font-weight: bold; color: var(--accent-color); background: rgba(255,255,255,0.1); display: inline-block; padding: 5px 15px; border-radius: 20px;}
        .hero-sub { font-size: 18px; margin-top: 20px; }

        /* --- 保証の仕組み（図解） --- */
        .guarantee-mechanism-warranty {
            background-color: var(--light-bg);
        }
        .timeline-box-warranty {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        .timeline-intro-warranty {
            text-align: center;
            margin-bottom: 30px;
        }
        
        /* タイムライン図 */
        .timeline-graph-warranty {
            display: flex;
            margin-bottom: 20px;
            border-radius: 8px;
            overflow: hidden;
            text-align: center;
            color: white;
            font-weight: bold;
        }
        .maker-guarantee-warranty {
            width: 20%;
            background-color: #ccc;
            padding: 15px 5px;
            position: relative;
        }
        .maker-guarantee-warranty::after {
            content: "終了";
            position: absolute;
            right: 0;
            bottom: -25px;
            font-size: 12px;
            color: #666;
            width: 100%;
        }
        .our-guarantee-warranty {
            width: 80%;
            background-color: var(--accent-color);
            padding: 15px 5px;
            position: relative;
        }
        .timeline-labels-warranty {
            display: flex;
            justify-content: space-between;
            padding: 0 5px;
            font-size: 14px;
            color: #666;
            margin-top: 5px;
        }
        .timeline-desc-warranty {
            text-align: center;
            font-weight: bold;
            color: var(--primary-color);
            margin-top: 30px;
            font-size: 18px;
        }

        /* --- 5つの特徴 --- */
        .features-grid-warranty {
            display: grid;
            gap: 20px;
            /* スマホは1カラム */
            grid-template-columns: 1fr;
        }
        .feature-card-warranty {
            border: 1px solid var(--gray-border);
            border-radius: 8px;
            padding: 25px;
            display: flex;
            align-items: flex-start;
            background: white;
        }
        .feature-icon-warranty {
            font-size: 36px;
            color: var(--primary-color);
            margin-right: 20px;
            flex-shrink: 0;
        }
        .feature-content-warranty h3 {
            font-size: 18px;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        .feature-content-warranty p {
            font-size: 14px;
            margin: 0;
            color: #555;
        }

        /* --- 対象機器と料金 --- */
        .target-items-section-warranty {
            background-color: var(--light-bg);
        }
        .item-grid-warranty {
            display: grid;
            gap: 15px;
            /* スマホは1カラム */
            grid-template-columns: 1fr;
        }
        .item-card-warranty {
            background: white;
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-left: 5px solid var(--primary-color);
        }
        .item-name-warranty {
            font-weight: bold;
            font-size: 16px;
            display: flex;
            align-items: center;
        }
        .item-icon-warranty {
            margin-right: 10px;
            font-size: 20px;
            color: #888;
        }
        .item-warranty-info-warranty {
            text-align: right;
        }
        .warranty-year-warranty {
            font-size: 18px;
            font-weight: bold;
            color: var(--primary-color);
        }
        .warranty-price-warranty {
            font-size: 14px;
            color: #666;
        }

        /* --- よくある質問・注意書き --- */
        .faq-box-warranty {
            border: 1px solid var(--gray-border);
            border-radius: 8px;
            padding: 20px;
            background-color: #fff;
        }
        .faq-title-warranty {
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        .faq-title-warranty::before {
            content: "Q.";
            font-size: 20px;
            color: var(--accent-color);
            margin-right: 10px;
        }
        .faq-answer-warranty {
            padding-left: 30px;
            font-size: 14px;
            color: #555;
        }
        .note-list-warranty {
            margin-top: 30px;
            font-size: 13px;
            color: #666;
            background-color: #f9f9f9;
            padding: 20px;
            border-radius: 8px;
        }
        .note-list-warranty li {
            margin-bottom: 8px;
            padding-left: 1.2em;
            text-indent: -1.2em;
        }
        .note-list-warranty li::before {
            content: "※";
            margin-right: 5px;
        }

        /* --- フッター --- */
        /* footer {
            background-color: #333;
            color: #ccc;
            padding: 30px 0;
            text-align: center;
            font-size: 14px;
        } */

        /* =========================================
           タブレット向けレスポンシブ調整 (768px以上)
        ========================================= */
        @media (min-width: 768px) {
            .hero-warranty h1 { font-size: 36px; }
            .hero-sub-warranty { font-size: 20px; }
            
            /* 特徴を2カラムに */
            .features-grid-warranty {
                grid-template-columns: repeat(2, 1fr);
            }
            /* 最後の奇数アイテムを中央寄せにするハック */
            .features-grid-warranty .feature-card-warranty:last-child:nth-child(odd) {
                 grid-column: auto / span 2;
                 max-width: 600px;
                 margin: 0 auto;
            }

            /* 対象機器を2カラムに */
            .item-grid-warranty {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .item-name-warranty { font-size: 18px; }
        }