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

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

        .jav6db-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .jav6db-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .jav6db-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .jav6db-logo img {
            height: 40px;
            width: auto;
        }

        .jav6db-nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .jav6db-nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }

        .jav6db-nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }

        .jav6db-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
        }

        .jav6db-hero-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .jav6db-hero-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto;
        }

        .jav6db-main {
            padding: 4rem 0;
        }

        .jav6db-tutorial-section {
            background: white;
            border-radius: 15px;
            padding: 3rem;
            margin-bottom: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        .jav6db-section-title {
            font-size: 2rem;
            color: #2c3e50;
            margin-bottom: 2rem;
            border-left: 4px solid #667eea;
            padding-left: 1rem;
        }

        .jav6db-step-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .jav6db-step-card {
            background: #f8f9fa;
            border-radius: 10px;
            padding: 2rem;
            border: 2px solid #e9ecef;
            transition: all 0.3s ease;
        }

        .jav6db-step-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            border-color: #667eea;
        }

        .jav6db-step-number {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-bottom: 1rem;
        }

        .jav6db-step-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 1rem;
        }

        .jav6db-step-content {
            color: #666;
            line-height: 1.8;
        }

        .jav6db-feature-list {
            list-style: none;
            margin: 2rem 0;
        }

        .jav6db-feature-item {
            padding: 1rem;
            margin-bottom: 1rem;
            background: #f8f9fa;
            border-radius: 8px;
            border-left: 4px solid #28a745;
            transition: all 0.3s ease;
        }

        .jav6db-feature-item:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }

        .jav6db-feature-title {
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 0.5rem;
        }

        .jav6db-tips-box {
            background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
            border-radius: 10px;
            padding: 2rem;
            margin: 2rem 0;
            border-left: 5px solid #ff6b6b;
        }

        .jav6db-tips-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #d63031;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
        }

        .jav6db-tips-title::before {
            content: "💡";
            margin-right: 0.5rem;
        }

        .jav6db-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
            border-radius: 15px;
            margin: 3rem 0;
        }

        .jav6db-cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .jav6db-cta-subtitle {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .jav6db-cta-button {
            display: inline-block;
            background: white;
            color: #667eea;
            padding: 1rem 2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        .jav6db-cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.3);
        }

        .jav6db-footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 0;
            text-align: center;
        }

        .jav6db-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .jav6db-footer-section h3 {
            margin-bottom: 1rem;
            color: #ecf0f1;
        }

        .jav6db-footer-link {
            color: #bdc3c7;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }

        .jav6db-footer-link:hover {
            color: #667eea;
        }

        .jav6db-copyright {
            border-top: 1px solid #34495e;
            padding-top: 2rem;
            color: #95a5a6;
        }

        @media (max-width: 768px) {
            .jav6db-nav-menu {
                flex-direction: column;
                gap: 1rem;
            }

            .jav6db-hero-title {
                font-size: 2rem;
            }

            .jav6db-tutorial-section {
                padding: 2rem 1rem;
            }

            .jav6db-step-grid {
                grid-template-columns: 1fr;
            }

            .jav6db-cta-title {
                font-size: 2rem;
            }
        }