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 */
        .terms-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.875rem;
            font-weight: 300;
            letter-spacing: 0.08em;
            color: #595959;
            margin-bottom: 2rem;
        }
        .terms-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;
            width: 30%;
        }
        .terms-table td {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid #EAE8E3;
            border-top: 1px solid #EAE8E3;
            line-height: 2;
        }
        @media (max-width: 767px) {
            .terms-table th, .terms-table td {
                display: block;
                width: 100%;
                white-space: normal;
            }
            .terms-table th {
                border-bottom: none;
                padding-bottom: 0.5rem;
            }
            .terms-table td {
                padding-top: 0;
                border-top: none;
            }
        }

        /* サイドバーメニュー */
        .sidebar-nav {
            /* PC画面で長すぎる場合にスクロール可能にする */
            max-height: calc(100vh - 12rem);
            overflow-y: auto;
            -ms-overflow-style: none;
            scrollbar-width: none;
        }
        .sidebar-nav::-webkit-scrollbar {
            display: none;
        }
        .sidebar-nav a {
            display: block;
            padding: 0.75rem 0;
            font-size: 0.8rem;
            color: #595959;
            text-decoration: none;
            border-bottom: 1px solid #EAE8E3;
            transition: color 0.3s;
            font-weight: 300;
            letter-spacing: 0.05em;
        }
        .sidebar-nav a:hover {
            color: #2C2C2C;
        }
        .sidebar-nav a:last-child {
            border-bottom: 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; }

        #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; }

        /* 規約テキスト用 */
        .terms-content h3 {
            font-family: "Shippori Mincho", serif;
            font-size: 1.125rem;
            color: #2C2C2C;
            margin-top: 2rem;
            margin-bottom: 1rem;
            letter-spacing: 0.1em;
        }
        .terms-content p, .terms-content li {
            font-size: 0.875rem;
            color: #595959;
            font-weight: 300;
            line-height: 2.2;
            letter-spacing: 0.05em;
        }
        .terms-content ol {
            list-style-type: decimal;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
            margin-top: 0.5rem;
        }
        .terms-content ul {
            list-style-type: disc;
            padding-left: 1.5rem;
            margin-bottom: 1.5rem;
            margin-top: 0.5rem;
        }
        .terms-content ol > li > ol {
            list-style-type: lower-latin;
            margin-bottom: 0;
        }