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

        .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%; }

        /* パンくずリスト用 CSS */
        nav[aria-label="breadcrumb"] ol {
            gap: 0.5rem;
            align-items: center;
            display: flex;
            flex-wrap: wrap;
        }
        nav[aria-label="breadcrumb"] ol > li {
            display: flex;
            align-items: center;
        }

        /* フォーム要素 */
        .form-input, .form-textarea {
            width: 100%;
            border: 1px solid #EAE8E3;
            background-color: #FFFFFF;
            padding: 1rem 1.25rem;
            font-size: 0.875rem;
            color: #2C2C2C;
            outline: none;
            transition: border-color 0.3s;
            font-family: inherit;
        }
        .form-input:focus, .form-textarea:focus { border-color: #2C2C2C; }
        .form-input.error, .form-textarea.error, .form-select.error { border-color: #E53E3E; background-color: #FEF2F2; }
        
        .form-select {
            width: 100%;
            border: 1px solid #EAE8E3;
            background-color: #FFFFFF;
            padding: 1rem 1.25rem;
            font-size: 0.875rem;
            color: #2C2C2C;
            outline: none;
            transition: border-color 0.3s;
            appearance: none;
            background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23595959' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1em;
        }
        .form-select:focus { border-color: #2C2C2C; }

        .req-mark {
            color: #E53E3E;
            margin-left: 0.5rem;
            font-size: 0.75rem;
            font-weight: 300;
            vertical-align: middle;
        }

        .error-msg {
            color: #E53E3E;
            font-size: 0.75rem;
            margin-top: 0.5rem;
            letter-spacing: 0.05em;
            display: none;
        }
        .error-msg.show { display: block; }

        .custom-checkbox {
            accent-color: #2C2C2C;
            width: 1.25rem;
            height: 1.25rem;
            cursor: pointer;
            margin-top: 0.1rem;
        }

        /* ボタン */
        .btn-solid {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #2C2C2C;
            background-color: #2C2C2C;
            color: #FFFFFF;
            padding: 1.25rem 3rem;
            font-size: 0.875rem;
            letter-spacing: 0.1em;
            transition: all 0.4s ease;
            text-decoration: none;
            cursor: pointer;
            width: 100%;
        }
        .btn-solid:hover:not(:disabled) { background-color: #4A4A4A; border-color: #4A4A4A; }
        .btn-solid:disabled { opacity: 0.5; cursor: not-allowed; }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #2C2C2C;
            background-color: #FFFFFF;
            color: #2C2C2C;
            padding: 1.25rem 3rem;
            font-size: 0.875rem;
            letter-spacing: 0.1em;
            transition: all 0.4s ease;
            text-decoration: none;
            cursor: pointer;
            width: 100%;
        }
        .btn-outline:hover { background-color: #F9F8F6; }

        /* ステップインジケーター */
        .step-indicator {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.75rem;
            letter-spacing: 0.15em;
            color: #A0A0A0;
            margin-bottom: 3rem;
        }
        .step-indicator span.active {
            color: #2C2C2C;
            font-weight: 500;
            border-bottom: 1px solid #2C2C2C;
            padding-bottom: 0.2rem;
        }
        .step-indicator span.arrow {
            color: #EAE8E3;
            font-family: serif;
        }

        /* 確認画面用テーブル */
        .confirm-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 0.875rem;
            font-weight: 300;
            letter-spacing: 0.08em;
            color: #2C2C2C;
        }
        .confirm-table th {
            width: 30%;
            background-color: #F9F8F6;
            font-weight: 500;
            padding: 1.5rem;
            border-bottom: 1px solid #EAE8E3;
            border-top: 1px solid #EAE8E3;
        }
        .confirm-table td {
            width: 70%;
            padding: 1.5rem;
            border-bottom: 1px solid #EAE8E3;
            border-top: 1px solid #EAE8E3;
            line-height: 2;
            word-break: break-word;
        }
        @media (max-width: 767px) {
            .confirm-table, .confirm-table tbody, .confirm-table tr, .confirm-table th, .confirm-table td { display: block; width: 100%; }
            .confirm-table th { border-bottom: none; padding-bottom: 0.5rem; }
            .confirm-table td { padding-top: 0; margin-bottom: 1rem; }
            .confirm-table tr:last-child td { border-bottom: 1px solid #EAE8E3; margin-bottom: 0; }
        }

        #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; }