:root {
  --changho-accent: #7C5CFC;
  --changho-accent-dark: #6344E0;
  --changho-btn-primary-bg: #7C5CFC;
  --changho-btn-primary-hover: #6344E0;
  --changho-highlight: #7C5CFC;
}

        /* =====================================================
           Snorkl Page-Specific Styles (changho design system)
           Common styles handled by product-compact.css
           ===================================================== */

        /* Hero Card Internals */
        .hero-card-header {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 1px solid rgba(26, 54, 93, 0.1);
        }

        .hero-card-logo {
            width: 80px;
            height: 80px;
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            box-shadow: 0 8px 24px rgba(26, 54, 93, 0.25);
        }

        .hero-card-title h2, .hero-card-title h3 {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--modern-text, #1E293B);
            margin-bottom: 4px;
        }

        .hero-card-title p {
            color: var(--modern-text-secondary, #64748B);
            font-size: 1rem;
        }

        .hero-stat {
            background: rgba(26, 54, 93, 0.06);
            border-radius: var(--changho-card-radius, 12px);
            padding: 20px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .hero-stat:hover {
            background: rgba(26, 54, 93, 0.1);
            transform: translateY(-2px);
        }

        .hero-stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--changho-accent, #1a365d);
            margin-bottom: 4px;
        }

        .hero-stat-label {
            font-size: 0.9rem;
            color: var(--modern-text-secondary, #64748B);
            font-weight: 500;
        }

        /* Section Common */
        .section {
            padding: 80px 0;
            position: relative;
            z-index: 1;
        }

        /* Audience Tabs */

        .use-case-card {
            text-align: center;
        }

        .use-case-card h3, .use-case-card h4 {
            color: var(--changho-accent, #1a365d);
        }

        /* AI Features Section */
        .ai-section {
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            padding: 80px 60px;
            margin: 0 24px;
            position: relative;
            overflow: hidden;
        }

        .ai-section .section-header h2 {
            color: white;
        }

        .ai-section .section-header p {
            color: rgba(255, 255, 255, 0.85);
        }

        .ai-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
            z-index: 1;
        }

        .ai-card {
            background: rgba(255, 255, 255, 0.12);
            border-radius: var(--changho-card-radius, 12px);
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all 0.3s ease;
        }

        .ai-card:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-4px);
        }

        .ai-card h3 {
            color: white;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-card p {
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* Community Section */
        .community-section {
            background: var(--modern-section-alt, #F8FAFC);
            border-radius: var(--changho-card-radius, 12px);
            padding: 60px;
            margin: 0 24px;
            border: var(--modern-card-border, 1px solid #E2E8F0);
        }

        .community-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }

        .community-card {
            background: white;
            border-radius: var(--changho-card-radius, 12px);
            padding: 40px;
            border: var(--modern-card-border, 1px solid #E2E8F0);
            box-shadow: var(--changho-card-shadow, 0 2px 12px rgba(26, 54, 93, 0.08));
            transition: all 0.3s ease;
        }

        .community-card:hover {
            border-color: var(--changho-accent, #1a365d);
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(26, 54, 93, 0.12);
        }

        .community-icon {
            font-size: 3rem;
            margin-bottom: 20px;
        }

        .community-card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--modern-text, #1E293B);
            margin-bottom: 12px;
        }

        .community-card p {
            color: var(--modern-text-secondary, #64748B);
            line-height: 1.7;
        }

        .community-cta {
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            padding: 48px;
            text-align: center;
        }

        .community-cta h3 {
            color: white;
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .community-cta p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.1rem;
            margin-bottom: 28px;
        }

        .community-cta .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: white;
            color: var(--changho-accent, #1a365d);
            padding: 18px 36px;
            border-radius: var(--changho-card-radius, 12px);
            text-decoration: none;
            font-weight: 700;
            font-size: 1.15rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .community-cta .btn-white:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        /* Pricing Section */
        .pricing-section {
            background: var(--modern-section-alt, #F8FAFC);
            border: var(--modern-card-border, 1px solid #E2E8F0);
            border-radius: var(--changho-card-radius, 12px);
            padding: 80px 60px;
            margin: 0 24px;
        }

        .pricing-main {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .pricing-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 32px;
        }

        .price-card {
            background: white;
            border-radius: var(--changho-card-radius, 12px);
            padding: 32px;
            text-align: center;
            box-shadow: var(--changho-card-shadow, 0 2px 12px rgba(26, 54, 93, 0.08));
            border: 2px solid transparent;
            transition: all 0.3s ease;
            position: relative;
        }

        .price-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(26, 54, 93, 0.12);
        }

        .price-card.recommended {
            border-color: var(--changho-accent, #1a365d);
            box-shadow: 0 8px 32px rgba(26, 54, 93, 0.15);
        }

        .price-card .badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
            color: white;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
        }

        .price-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--modern-text, #1E293B);
            margin-bottom: 16px;
        }

        .price-amount {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--changho-accent, #1a365d);
            margin-bottom: 8px;
        }

        .price-unit {
            color: var(--modern-text-secondary, #64748B);
            font-size: 1rem;
            margin-bottom: 20px;
        }

        .price-desc {
            background: var(--changho-accent, #1a365d);
            color: white;
            padding: 14px 20px;
            border-radius: var(--changho-btn-radius, 8px);
            font-weight: 600;
            font-size: 1rem;
        }

        /* Purchase Buttons */
        .purchase-buttons {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .purchase-card {
            background: white;
            border-radius: var(--changho-card-radius, 12px);
            padding: 24px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: var(--changho-card-shadow, 0 2px 12px rgba(26, 54, 93, 0.08));
            border: var(--modern-card-border, 1px solid #E2E8F0);
        }

        .purchase-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(26, 54, 93, 0.12);
        }

        .purchase-header {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .purchase-icon {
            width: 52px;
            height: 52px;
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
        }

        .purchase-info h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--changho-accent, #1a365d);
            margin-bottom: 2px;
        }

        .purchase-info p {
            color: var(--modern-text-secondary, #64748B);
            font-size: 0.9rem;
        }

        .school-code-box {
            background: rgba(26, 54, 93, 0.06);
            border: 2px solid var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            padding: 16px;
            text-align: center;
        }

        .school-code-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--modern-text, #1E293B);
            margin-bottom: 10px;
        }

        .school-code-value {
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-btn-radius, 8px);
            padding: 14px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .school-code-value:hover {
            transform: scale(1.02);
        }

        .school-code-number {
            font-family: 'Courier New', monospace;
            font-size: 1.1rem;
            color: white;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .school-code-copy {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            color: white;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* Special Offer Card */
        .special-offer {
            background: white;
            border-radius: var(--changho-card-radius, 12px);
            padding: 36px;
            border: 3px solid #f97316;
            position: relative;
        }

        .special-offer .badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: linear-gradient(135deg, #f97316 0%, #ef4444 100%);
            color: white;
            padding: 10px 24px;
            border-radius: 24px;
            font-size: 1rem;
            font-weight: 800;
        }

        .special-offer h3 {
            text-align: center;
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--modern-text, #1E293B);
            margin-top: 16px;
            margin-bottom: 24px;
        }

        .discount-box {
            background: #fef3c7;
            border: 3px solid #f59e0b;
            border-radius: var(--changho-card-radius, 12px);
            padding: 28px;
            text-align: center;
            margin-bottom: 24px;
        }

        .original-price {
            color: #92400e;
            font-size: 1.1rem;
            text-decoration: line-through;
            margin-bottom: 8px;
        }

        .discount-price {
            font-size: 3rem;
            font-weight: 900;
            color: var(--modern-text, #1E293B);
            margin-bottom: 12px;
        }

        .discount-badge {
            display: inline-block;
            background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
            color: white;
            padding: 12px 24px;
            border-radius: var(--changho-card-radius, 12px);
            font-size: 1.1rem;
            font-weight: 800;
        }

        .conditions-box {
            background: var(--modern-section-alt, #F8FAFC);
            border: 2px solid #cbd5e1;
            border-radius: var(--changho-card-radius, 12px);
            padding: 20px;
            margin-bottom: 20px;
        }

        .conditions-title {
            font-weight: 700;
            color: var(--modern-text, #1E293B);
            margin-bottom: 12px;
            text-align: center;
        }

        .conditions-list {
            color: var(--modern-text, #1E293B);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .inquiry-box {
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            padding: 20px;
            text-align: center;
        }

        .inquiry-box h4 {
            color: white;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .inquiry-box p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: var(--changho-accent, #1a365d);
            border-radius: var(--changho-card-radius, 12px);
            padding: 80px 60px;
            margin: 0 24px 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            color: white;
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            margin-bottom: 32px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .cta-buttons .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: white;
            color: var(--changho-accent, #1a365d);
            padding: 18px 36px;
            border-radius: var(--changho-card-radius, 12px);
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .cta-buttons .btn-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }

        .cta-buttons .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: white;
            padding: 18px 36px;
            border-radius: var(--changho-card-radius, 12px);
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all 0.3s ease;
        }

        .cta-buttons .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: white;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .ai-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .use-cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .pricing-main {
                grid-template-columns: 1fr;
            }

            .pricing-cards {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }

            .ai-grid,
            .use-cases-grid {
                grid-template-columns: 1fr;
            }

            .community-grid {
                grid-template-columns: 1fr;
            }

            .ai-section,
            .community-section,
            .pricing-section,
            .cta-section {
                margin: 0 10px;
                padding: 40px 24px;
                border-radius: var(--changho-card-radius, 12px);
            }

            .purchase-buttons {
                grid-template-columns: 1fr;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        /* Breadcrumb Styles */
        .breadcrumb-nav {
            padding: 100px 0 0;
        }

        .breadcrumb-list {
            display: flex;
            list-style: none;
            margin: 0;
            padding: 16px 24px;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--modern-text-secondary, #64748B);
            background: white;
            border: var(--modern-card-border, 1px solid #E2E8F0);
            border-radius: var(--changho-card-radius, 12px);
            width: fit-content;
        }

        .breadcrumb-list a {
            color: var(--changho-accent, #1a365d);
            text-decoration: none;
            transition: color 0.2s;
        }

        .breadcrumb-list a:hover {
            color: var(--changho-accent-dark, #0f2442);
        }

        .breadcrumb-list .current {
            color: var(--modern-text, #1E293B);
            font-weight: 600;
        }