html { 
            scroll-behavior: smooth; 
            scroll-padding-top: 120px;
        }
        body {
            color: #2C2C2C;
            background-color: #FFFFFF;
            line-height: 1.8;
            font-feature-settings: "palt";
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        /* フェードインアニメーション */
        .fade-in-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        .fade-in-up.is-visible {
            opacity: 1;
            transform: translateY(0);
        }

        .separator-line { height: 1px; background-color: #EAE8E3; width: 100%; }

        /* テーブル装飾 */
        .guide-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.875rem;
            font-weight: 300;
            letter-spacing: 0.08em;
            color: #595959;
        }
        .guide-table th {
            background-color: #F9F8F6;
            font-weight: 500;
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid #EAE8E3;
            border-top: 1px solid #EAE8E3;
            color: #2C2C2C;
            white-space: nowrap;
        }
        .guide-table td {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid #EAE8E3;
            border-top: 1px solid #EAE8E3;
            line-height: 2;
        }

        /* FAQアコーディオン用 */
        details.faq-item > summary { 
            list-style: none; 
            cursor: pointer; 
        }
        details.faq-item > summary::-webkit-details-marker { display: none; }
        
        /* SPナビ用アコーディオン */
        details.sp-nav > summary { 
            list-style: none; 
            cursor: pointer; 
        }
        details.sp-nav > summary::-webkit-details-marker { display: none; }

        /* 警告・注記ブロック */
        .notice-block {
            background-color: #F9F8F6;
            border-left: 2px solid #2C2C2C;
            padding: 1.5rem 2rem;
            font-size: 0.875rem;
            font-weight: 300;
            letter-spacing: 0.08em;
            color: #595959;
            margin: 1.5rem 0;
        }
        .notice-block strong {
            color: #2C2C2C;
            font-weight: 500;
        }

        /* サイドバーメニュー */
        .sidebar-nav a {
            display: block;
            padding: 0.85rem 0;
            font-size: 0.875rem;
            color: #595959;
            text-decoration: none;
            border-bottom: 1px solid #EAE8E3;
            transition: color 0.3s;
            font-weight: 300;
            letter-spacing: 0.1em;
        }
        .sidebar-nav a:hover {
            color: #2C2C2C;
        }
        .sidebar-nav a:last-child {
            border-bottom: none;
        }

        #sp-menu { transition: opacity 0.3s ease, visibility 0.3s ease; }
        #sp-menu.hidden-menu { opacity: 0; visibility: hidden; pointer-events: none; }
        #sp-menu.active-menu { opacity: 1; visibility: visible; pointer-events: auto; }