/* BASIC css start */
        /* ¸ÞÀÎ ÄÁÅ×ÀÌ³Ê */
        .penm-main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ¹è³Ê ¼½¼Ç */
        .penm-banner-section {
            width: 100%;
            height: 250px;
            background: linear-gradient(135deg, #403F6F, #2c344e);
            margin-bottom: 60px;
            position: relative;
            overflow: hidden;
        }

        .penm-banner-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.8;
        }

        .penm-banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(64, 63, 111, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .penm-banner-text {
            text-align: center;
            color: white;
        }

        .penm-banner-title {
            color: white;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 2px;
        }

        .penm-banner-subtitle {
            font-size: 1.4rem;
            font-weight: 300;
            opacity: 0.9;
        }

        /* ÅÇ ³×ºñ°ÔÀÌ¼Ç */
        .penm-tab-navigation {
            display: flex;
            background: #f8f9ff;
            border-bottom: 3px solid #403F6F;
            margin-bottom: 50px;
        }

        .penm-tab-button {
            flex: 1;
            padding: 25px 20px;
            background: #f8f9ff;
            border: none;
            font-size: 1.3rem;
            font-weight: 600;
            color: #666;
            cursor: pointer;
            transition: all 0.3s ease;
            border-bottom: 3px solid transparent;
            position: relative;
        }

        .penm-tab-button:hover {
            background: #e4eaff;
            color: #403F6F;
        }

        .penm-tab-button.active {
            background: white;
            color: #403F6F;
            border-bottom-color: #403F6F;
        }

        /* ÅÇ ÄÁÅÙÃ÷ */
        .penm-tab-content {
            display: none;
            animation: fadeIn 0.5s ease-in-out;
        }

        .penm-tab-content.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .penm-content-section {
            margin-bottom: 60px;
        }

        .penm-section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: #403F6F;
            margin-bottom: 30px;
            border-left: 6px solid #403F6F;
            padding-left: 20px;
        }

        .penm-content-text {
            font-size: 1.1rem;
            color: #555;
            line-height: 1.8;
            margin-bottom: 25px;
            word-break: keep-all;
            word-wrap: break-word;
        }

        .penm-parts-list {
            background: #f8f9ff;
            padding: 30px;
            margin: 30px 0;
        }

        .penm-parts-item {
            font-size: 1.1rem;
            color: #403F6F;
            margin-bottom: 15px;
            padding-left: 20px;
            position: relative;
            font-weight: 500;
        }

        .penm-parts-item::before {
            content: counter(part-counter);
            counter-increment: part-counter;
            position: absolute;
            left: 0;
            background: #403F6F;
            color: white;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
        }

        .penm-parts-list {
            counter-reset: part-counter;
        }

        .penm-image-container {
            text-align: center;
            margin: 40px 0;
        }

        .penm-guide-image {
            max-width: 100%;
            height: auto;
            border: 1px solid #e4eaff;
        }

        .penm-notice-box {
            background: linear-gradient(135deg, #e4eaff, #c8d5ff);
            padding: 30px;
            margin: 30px 0;
            border-left: 6px solid #403F6F;
        }

        .penm-notice-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: #403F6F;
            margin-bottom: 15px;
        }

        .penm-notice-text {
            font-size: 1rem;
            color: #403F6F;
            line-height: 1.7;
            word-break: keep-all;
            word-wrap: break-word;
        }

        .penm-step-list {
            background: white;
            border: 1px solid #e4eaff;
            padding: 30px;
            margin: 30px 0;
        }

        .penm-step-item {
            font-size: 1.1rem;
            color: #555;
            margin-bottom: 15px;
            padding-left: 30px;
            position: relative;
            line-height: 1.7;
            word-break: keep-all;
            word-wrap: break-word;
        }

        .penm-step-item::before {
            content: counter(step-counter);
            counter-increment: step-counter;
            position: absolute;
            left: 0;
            background: #403F6F;
            color: white;
            width: 22px;
            height: 22px;
            border-radius: 3px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
        }

        .penm-step-list {
            counter-reset: step-counter;
        }

        .penm-comparison-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 30px 0;
        }

        .penm-comparison-card {
            background: white;
            padding: 30px;
            border: 2px solid #e4eaff;
            transition: all 0.3s ease;
        }

        .penm-comparison-card:hover {
            border-color: #403F6F;
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(64, 63, 111, 0.1);
        }

        .penm-comparison-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: #403F6F;
            margin-bottom: 20px;
            text-align: center;
        }

        .penm-comparison-text {
            font-size: 1rem;
            color: #555;
            line-height: 1.7;
            word-break: keep-all;
            word-wrap: break-word;
        }

        .penm-size-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin: 30px 0;
        }

        .penm-size-item {
            background: #f8f9ff;
            padding: 25px;
            border-left: 4px solid #403F6F;
        }

        .penm-size-name {
            font-size: 1.3rem;
            font-weight: 700;
            color: #403F6F;
            margin-bottom: 10px;
        }

        .penm-size-desc {
            font-size: 1rem;
            color: #555;
            line-height: 1.6;
            word-break: keep-all;
            word-wrap: break-word;
        }

        .penm-highlight {
            background: linear-gradient(135deg, #c8d5ff, #e4eaff);
            padding: 20px;
            margin: 20px 0;
            border-radius: 0;
            border-left: 4px solid #403F6F;
        }

        .penm-highlight-text {
            font-size: 1rem;
            color: #403F6F;
            font-weight: 500;
            line-height: 1.6;
            word-break: keep-all;
            word-wrap: break-word;
        }

        /* ¹ÝÀÀÇü µðÀÚÀÎ */
        @media (max-width: 768px) {
            .penm-banner-title {
                font-size: 2.5rem;
            }

            .penm-banner-subtitle {
                font-size: 1.1rem;
            }

            .penm-tab-navigation {
                flex-direction: column;
            }

            .penm-tab-button {
                border-bottom: 1px solid #e4eaff;
                border-left: 3px solid transparent;
            }

            .penm-tab-button.active {
                border-bottom-color: #e4eaff;
                border-left-color: #403F6F;
            }

            .penm-section-title {
                font-size: 1.8rem;
            }

            .penm-comparison-grid,
            .penm-size-grid {
                grid-template-columns: 1fr;
            }

            .penm-parts-item,
            .penm-step-item {
                padding-left: 35px;
            }
        }

        @media (max-width: 480px) {
            .penm-banner-section {
                height: 300px;
            }

            .penm-banner-title {
                font-size: 2rem;
            }

            .penm-tab-button {
                font-size: 1.1rem;
                padding: 20px 15px;
            }

            .penm-section-title {
                font-size: 1.6rem;
            }

            .penm-parts-list,
            .penm-step-list,
            .penm-notice-box {
                padding: 20px;
            }
        }
        
                /* ºñµð¿À ÄÁÅ×ÀÌ³Ê */
        .penm-video-container {
            margin: 30px 0;
            text-align: center;
        }

        .penm-source-text {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
            font-style: italic;
        }

        /* À×Å© ÁÖÀÔ¹ý ±×¸®µå */
        .penm-ink-method-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 30px;
            margin: 30px 0;
        }

        .penm-ink-method-card {
            background: white;
            border: 2px solid #e4eaff;
            padding: 30px;
        }

        .penm-ink-method-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: #403F6F;
            margin-bottom: 20px;
            text-align: center;
        }

        .penm-ink-method-image {
            text-align: center;
            margin: 20px 0;
        }

        .penm-ink-method-desc {
            font-size: 0.95rem;
            color: #555;
            line-height: 1.6;
            margin: 20px 0;
            text-align: center;
        }

        .penm-ink-method-desc p {
            margin-bottom: 5px;
        }

        .penm-video-link-btn {
            text-align: center;
            margin-top: 20px;
        }

        .penm-btn-video {
            display: inline-block;
            background: #cc0000;
            color: white;
            padding: 12px 25px;
            text-decoration: none;
            font-weight: 600;
            border-radius: 5px;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .penm-btn-video:hover {
            background: #cc0000;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 0, 0, 0.3);
        }

        .penm-btn-video i {
            margin-right: 8px;
        }

        /* ÆæÃË ±½±â À̹ÌÁö */
        .penm-nib-size-images {
            margin: 40px 0;
            text-align: left;
        }

        .penm-nib-image-item {
            margin-bottom: 20px;
        }

        .penm-nib-size-img {
            max-width: 450px;
            width: 100%;
            height: auto;
            border: 1px solid #e4eaff;
        }
        
        .penm-nib-size-img-single {
            max-width: 1200px;
            width: 100%;
            height: auto;
            border: 1px solid #e4eaff;
        }

        /* ¹ÝÀÀÇü */
        @media (max-width: 768px) {
            .penm-video-container iframe {
                height: 300px;
            }

            .penm-ink-method-grid {
                grid-template-columns: 1fr;
            }

            .penm-nib-size-img {
                max-width: 100%;
            }
        }

        @media (max-width: 480px) {
            .penm-video-container iframe {
                height: 250px;
            }

            .penm-ink-method-card {
                padding: 20px;
            }

            .penm-btn-video {
                font-size: 0.9rem;
                padding: 10px 20px;
            }
        }
/* BASIC css end */