* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }

        /* Header & Navigation */
        .ickfu-header-wrapper {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .ickfu-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 2rem;
        }

        .ickfu-logo-section {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 1.5rem;
            font-weight: bold;
        }

        .ickfu-logo-section img {
            height: 40px;
            width: auto;
        }

        .ickfu-nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .ickfu-nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: opacity 0.3s ease;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        .ickfu-nav-link:hover {
            opacity: 0.8;
            border-bottom-color: white;
        }

        /* Main Content */
        .ickfu-main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem;
        }

        /* Hero Section */
        .ickfu-hero-section {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 4rem 2rem;
            border-radius: 12px;
            margin-bottom: 3rem;
            text-align: center;
        }

        .ickfu-hero-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .ickfu-hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.95;
            line-height: 1.5;
        }

        .ickfu-cta-button-primary {
            display: inline-block;
            background-color: #fff;
            color: #0088cc;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            margin: 0.5rem;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .ickfu-cta-button-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        .ickfu-cta-button-secondary {
            display: inline-block;
            background-color: transparent;
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            border: 2px solid white;
            cursor: pointer;
            margin: 0.5rem;
        }

        .ickfu-cta-button-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        /* Content Section */
        .ickfu-content-section {
            background: white;
            padding: 3rem;
            border-radius: 12px;
            margin-bottom: 2rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .ickfu-section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 2rem;
            color: #0088cc;
            border-bottom: 3px solid #0088cc;
            padding-bottom: 1rem;
        }

        .ickfu-paragraph {
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
            color: #555;
        }

        .ickfu-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin: 2rem 0;
        }

        .ickfu-feature-card {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 8px;
            border-left: 4px solid #0088cc;
            transition: all 0.3s ease;
        }

        .ickfu-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 136, 204, 0.1);
            background: white;
        }

        .ickfu-feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .ickfu-feature-title {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.8rem;
            color: #0088cc;
        }

        .ickfu-feature-description {
            font-size: 0.95rem;
            color: #666;
            line-height: 1.6;
        }

        /* Compatibility Section */
        .ickfu-compatibility-wrapper {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .ickfu-compat-item {
            background: white;
            padding: 1.5rem;
            border-radius: 8px;
            border: 2px solid #e0e0e0;
            text-align: center;
            transition: all 0.3s ease;
        }

        .ickfu-compat-item:hover {
            border-color: #0088cc;
            box-shadow: 0 4px 12px rgba(0, 136, 204, 0.1);
        }

        .ickfu-compat-label {
            font-weight: 600;
            color: #333;
            margin-bottom: 0.5rem;
        }

        .ickfu-compat-version {
            font-size: 0.9rem;
            color: #666;
        }

        /* Installation Steps */
        .ickfu-steps-container {
            margin: 2rem 0;
        }

        .ickfu-step-item {
            display: flex;
            gap: 2rem;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 8px;
        }

        .ickfu-step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            background: #0088cc;
            color: white;
            border-radius: 50%;
            font-size: 1.5rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .ickfu-step-content h3 {
            color: #0088cc;
            margin-bottom: 0.5rem;
            font-size: 1.1rem;
        }

        .ickfu-step-content p {
            color: #666;
            font-size: 0.95rem;
        }

        /* Highlights List */
        .ickfu-highlights-list {
            list-style: none;
            margin: 2rem 0;
        }

        .ickfu-highlight-item {
            padding: 1rem 0;
            padding-left: 2rem;
            position: relative;
            color: #555;
            font-size: 1rem;
            line-height: 1.6;
        }

        .ickfu-highlight-item:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #0088cc;
            font-weight: bold;
            font-size: 1.2rem;
        }

        /* CTA Section */
        .ickfu-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #005fa3 100%);
            color: white;
            padding: 3rem;
            border-radius: 12px;
            text-align: center;
            margin: 3rem 0;
        }

        .ickfu-cta-heading {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .ickfu-cta-text {
            font-size: 1.1rem;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        /* Footer */
        .ickfu-footer-wrapper {
            background-color: #2c3e50;
            color: white;
            padding: 3rem 2rem;
            margin-top: 3rem;
        }

        .ickfu-footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .ickfu-footer-section h3 {
            font-size: 1.1rem;
            margin-bottom: 1rem;
            color: #0088cc;
        }

        .ickfu-footer-link {
            color: #ccc;
            text-decoration: none;
            font-size: 0.95rem;
            line-height: 2;
            transition: color 0.3s ease;
        }

        .ickfu-footer-link:hover {
            color: #0088cc;
        }

        .ickfu-footer-bottom {
            border-top: 1px solid #444;
            padding-top: 2rem;
            margin-top: 2rem;
            text-align: center;
            color: #aaa;
            font-size: 0.9rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .ickfu-nav-menu {
                gap: 1rem;
                font-size: 0.9rem;
            }

            .ickfu-hero-title {
                font-size: 1.8rem;
            }

            .ickfu-hero-subtitle {
                font-size: 1rem;
            }

            .ickfu-cta-button-primary,
            .ickfu-cta-button-secondary {
                padding: 0.8rem 1.5rem;
                font-size: 0.95rem;
                display: block;
                width: 100%;
                margin-bottom: 1rem;
            }

            .ickfu-main-container,
            .ickfu-content-section {
                padding: 1.5rem;
            }

            .ickfu-section-title {
                font-size: 1.5rem;
            }

            .ickfu-step-item {
                flex-direction: column;
                gap: 1rem;
            }

            .ickfu-step-number {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }

            .ickfu-feature-grid {
                grid-template-columns: 1fr;
            }

            .ickfu-nav-container {
                flex-direction: column;
                gap: 1rem;
            }

            .ickfu-nav-menu {
                flex-direction: column;
                width: 100%;
                gap: 0;
            }

            .ickfu-nav-link {
                padding: 0.8rem 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            }
        }

        @media (max-width: 480px) {
            .ickfu-hero-title {
                font-size: 1.5rem;
            }

            .ickfu-section-title {
                font-size: 1.3rem;
            }

            .ickfu-cta-heading {
                font-size: 1.5rem;
            }

            .ickfu-footer-container {
                grid-template-columns: 1fr;
            }
        }