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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }

        .yewq9-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .yewq9-header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .yewq9-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .yewq9-logo {
            height: 50px;
            width: auto;
        }

        .yewq9-nav-menu {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .yewq9-nav-link {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 25px;
        }

        .yewq9-nav-link:hover {
            background: linear-gradient(45deg, #667eea, #764ba2);
            color: white;
            transform: translateY(-2px);
        }

        .yewq9-hero {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9));
            color: white;
            padding: 4rem 0;
            text-align: center;
        }

        .yewq9-hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .yewq9-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .yewq9-download-btn {
            display: inline-block;
            background: linear-gradient(45deg, #ff6b6b, #ee5a24);
            color: white;
            padding: 1rem 2.5rem;
            text-decoration: none;
            border-radius: 50px;
            font-size: 1.2rem;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 8px 25px rgba(255, 107, 107, 0.3);
        }

        .yewq9-download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
        }

        .yewq9-main-content {
            background: white;
            padding: 4rem 0;
        }

        .yewq9-version-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .yewq9-version-card {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }

        .yewq9-version-card:hover {
            transform: translateY(-5px);
        }

        .yewq9-version-card h3 {
            color: #667eea;
            font-size: 1.5rem;
            margin-bottom: 1rem;
        }

        .yewq9-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin: 3rem 0;
        }

        .yewq9-feature-item {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 3px 15px rgba(0, 0, 0, 0.1);
            border-left: 4px solid #667eea;
            transition: all 0.3s ease;
        }

        .yewq9-feature-item:hover {
            transform: translateX(5px);
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
        }

        .yewq9-feature-icon {
            font-size: 2.5rem;
            color: #667eea;
            margin-bottom: 1rem;
        }

        .yewq9-changelog {
            background: linear-gradient(135deg, #f8f9fa, #ffffff);
            padding: 3rem;
            border-radius: 15px;
            margin: 3rem 0;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        }

        .yewq9-changelog h2 {
            color: #333;
            margin-bottom: 2rem;
            font-size: 2rem;
        }

        .yewq9-changelog-item {
            padding: 1rem 0;
            border-bottom: 1px solid #eee;
        }

        .yewq9-changelog-version {
            font-weight: 600;
            color: #667eea;
            font-size: 1.1rem;
        }

        .yewq9-changelog-date {
            color: #666;
            font-size: 0.9rem;
        }

        .yewq9-cta-section {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            padding: 4rem 0;
            text-align: center;
        }

        .yewq9-cta-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .yewq9-cta-text {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .yewq9-download-options {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }

        .yewq9-platform-btn {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 30px;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .yewq9-platform-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
        }

        .yewq9-footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 0 1rem;
        }

        .yewq9-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }

        .yewq9-footer-section h4 {
            margin-bottom: 1rem;
            color: #ecf0f1;
        }

        .yewq9-footer-link {
            color: #bdc3c7;
            text-decoration: none;
            display: block;
            margin-bottom: 0.5rem;
            transition: color 0.3s ease;
        }

        .yewq9-footer-link:hover {
            color: #667eea;
        }

        .yewq9-footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #34495e;
            color: #95a5a6;
        }

        @media (max-width: 768px) {
            .yewq9-nav-menu {
                flex-direction: column;
                gap: 1rem;
            }

            .yewq9-hero-title {
                font-size: 2.5rem;
            }

            .yewq9-download-options {
                flex-direction: column;
                align-items: center;
            }

            .yewq9-platform-btn {
                width: 200px;
            }
        }

        .yewq9-section-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: #333;
            position: relative;
        }

        .yewq9-section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: linear-gradient(45deg, #667eea, #764ba2);
            border-radius: 2px;
        }

        .yewq9-highlight {
            background: linear-gradient(45deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-weight: 600;
        }