:root {
            --m04y-primary: #D41E24;
            --m04y-primary-hover: #B7191E;
            --m04y-dark: #1A1A1A;
            --m04y-text: #333333;
            --m04y-light: #F8F9FA;
            --m04y-white: #FFFFFF;
            --m04y-gray: #666666;
            --m04y-accent: #FFEDED;
            --m04y-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --m04y-radius: 16px;
            --m04y-container-width: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--m04y-text);
            line-height: 1.6;
            background-color: var(--m04y-white);
            overflow-x: hidden;
            word-break: break-word;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Layout Helpers */
        .m04y-container {
            max-width: var(--m04y-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .m04y-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .m04y-flex-item {
            min-width: 0;
        }

        .m04y-section {
            padding: 96px 0;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
        }

        .m04y-h1 { font-size: clamp(2.2rem, 5vw + 1rem, 4rem); font-weight: 800; color: var(--m04y-dark); }
        .m04y-h2 { font-size: clamp(1.8rem, 3vw + 0.5rem, 2.8rem); font-weight: 700; color: var(--m04y-dark); text-align: center; margin-bottom: 48px; }
        .m04y-h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; margin-bottom: 16px; }
        .m04y-p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); color: var(--m04y-gray); line-height: 1.8; }

        /* Navigation */
        .m04y-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .m04y-nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            max-width: var(--m04y-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .m04y-logo {
            width: 140px;
            flex-shrink: 0;
        }

        .m04y-nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .m04y-nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--m04y-gray);
            padding: 8px 0;
            position: relative;
        }

        .m04y-nav-link:hover, .m04y-nav-link.active {
            color: var(--m04y-primary);
        }

        .m04y-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--m04y-primary);
        }

        /* Hero Section */
        .m04y-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at 90% 10%, var(--m04y-accent) 0%, transparent 40%);
            position: relative;
            overflow: hidden;
        }

        .m04y-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .m04y-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .m04y-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
            display: flex;
            justify-content: center;
        }

        .m04y-mobile-mockup {
            width: 280px;
            height: 560px;
            background: var(--m04y-dark);
            border-radius: 40px;
            border: 8px solid #222;
            position: relative;
            box-shadow: 20px 40px 80px rgba(0,0,0,0.2);
            overflow: hidden;
            transform: rotate(-5deg);
            transition: transform 0.5s ease;
        }

        .m04y-mobile-mockup:hover {
            transform: rotate(0deg) translateY(-10px);
        }

        .m04y-mockup-screen {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #D41E24 0%, #FF5A5F 100%);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            padding: 20px;
            text-align: center;
        }

        .m04y-hero-subtitle {
            margin: 24px 0 40px;
            max-width: 540px;
        }

        .m04y-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .m04y-btn {
            padding: 16px 32px;
            border-radius: 50px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }

        .m04y-btn-primary {
            background: var(--m04y-primary);
            color: white;
            box-shadow: 0 8px 20px rgba(212, 30, 36, 0.3);
        }

        .m04y-btn-primary:hover {
            background: var(--m04y-primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(212, 30, 36, 0.4);
        }

        .m04y-btn-outline {
            border: 2px solid #EEE;
            color: var(--m04y-dark);
        }

        .m04y-btn-outline:hover {
            border-color: var(--m04y-primary);
            color: var(--m04y-primary);
        }

        /* Matrix Section */
        .m04y-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
        }

        .m04y-matrix-card {
            background: var(--m04y-white);
            padding: 40px;
            border-radius: var(--m04y-radius);
            border: 1px solid #F0F0F0;
            transition: all 0.3s ease;
        }

        .m04y-matrix-card:hover {
            border-color: var(--m04y-primary);
            transform: translateY(-8px);
            box-shadow: var(--m04y-shadow);
        }

        .m04y-icon-box {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 24px;
        }

        .m04y-matrix-card:nth-child(1) .m04y-icon-box { background: #E3F2FD; color: #1E88E5; }
        .m04y-matrix-card:nth-child(2) .m04y-icon-box { background: #E8F5E9; color: #43A047; }
        .m04y-matrix-card:nth-child(3) .m04y-icon-box { background: #FFF3E0; color: #FB8C00; }
        .m04y-matrix-card:nth-child(4) .m04y-icon-box { background: #FFEBEE; color: #E53935; }

        .m04y-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 20px;
        }

        .m04y-tag {
            font-size: 12px;
            background: var(--m04y-light);
            padding: 4px 10px;
            border-radius: 4px;
            color: var(--m04y-gray);
        }

        /* Download Feature Section */
        .m04y-download-feature {
            background: var(--m04y-dark);
            color: white;
            border-radius: 32px;
            padding: 80px 64px;
            margin-bottom: 96px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .m04y-qr-area {
            flex: 1;
            min-width: 300px;
            text-align: center;
            background: rgba(255,255,255,0.05);
            padding: 40px;
            border-radius: 24px;
        }

        .m04y-qr-placeholder {
            width: 200px;
            height: 200px;
            background: white;
            margin: 0 auto 24px;
            padding: 10px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: #333;
            border: 4px solid var(--m04y-primary);
        }

        .m04y-download-info {
            flex: 1.5;
            min-width: 300px;
        }

        .m04y-download-info .m04y-h2 {
            text-align: left;
            color: white;
            margin-bottom: 24px;
        }

        /* Footer */
        .m04y-footer {
            background: var(--m04y-light);
            padding: 80px 0 40px;
            border-top: 1px solid #EEE;
        }

        .m04y-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .m04y-footer-brand {
            font-size: 24px;
            font-weight: 800;
            color: var(--m04y-primary);
            margin-bottom: 16px;
        }

        .m04y-footer-title {
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--m04y-dark);
        }

        .m04y-footer-link {
            display: block;
            margin-bottom: 12px;
            color: var(--m04y-gray);
            font-size: 14px;
        }

        .m04y-footer-link:hover {
            color: var(--m04y-primary);
        }

        .m04y-copyright {
            padding-top: 32px;
            border-top: 1px solid #E0E0E0;
            text-align: center;
            font-size: 14px;
            color: var(--m04y-gray);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .m04y-nav-menu {
                display: none; /* In a real scenario, this would be a hamburger menu */
            }
            .m04y-hero {
                padding: 120px 0 64px;
                text-align: center;
            }
            .m04y-hero-grid {
                flex-direction: column;
            }
            .m04y-btn-group {
                justify-content: center;
            }
            .m04y-download-feature {
                padding: 40px 24px;
                text-align: center;
            }
            .m04y-download-info .m04y-h2 {
                text-align: center;
            }
        }