:root {
            --m04y-primary: #D42F2F;
            --m04y-ai-blue: #0062FF;
            --m04y-ai-gradient: linear-gradient(135deg, #0062FF 0%, #6E3AFF 100%);
            --m04y-text-dark: #1D1D1F;
            --m04y-text-gray: #424245;
            --m04y-bg-light: #F5F5F7;
            --m04y-white: #FFFFFF;
            --m04y-spacing-unit: 8px;
            --m04y-container-width: 1400px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--m04y-bg-light);
            color: var(--m04y-text-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Utility Classes */
        .m04y-flex { display: flex; flex-wrap: wrap; }
        .m04y-grid { display: grid; }
        .m04y-container { 
            max-width: var(--m04y-container-width); 
            margin: 0 auto; 
            padding: 0 calc(var(--m04y-spacing-unit) * 3);
        }

        /* Navigation */
        .m04y-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: calc(var(--m04y-spacing-unit) * 2) 0;
        }

        .m04y-nav-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            min-width: 0;
        }

        .m04y-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .m04y-logo img {
            height: 32px;
            display: block;
        }

        .m04y-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--m04y-spacing-unit) * 3);
            min-width: 0;
        }

        .m04y-menu-item a {
            text-decoration: none;
            color: var(--m04y-text-gray);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .m04y-menu-item a:hover {
            color: var(--m04y-primary);
        }

        .m04y-menu-item a.m04y-active {
            color: var(--m04y-primary);
            position: relative;
        }

        .m04y-menu-item a.m04y-active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--m04y-primary);
        }

        /* Hero Section - Vertical Stack Design */
        .m04y-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 50% 0%, rgba(0, 98, 255, 0.05) 0%, transparent 70%);
            text-align: center;
            word-break: break-word;
        }

        .m04y-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .m04y-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--m04y-ai-gradient);
            color: white;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .m04y-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(to bottom, #1d1d1f, #424245);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .m04y-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--m04y-text-gray);
            max-width: 700px;
            margin: 0 auto 48px;
            line-height: 1.5;
        }

        .m04y-cta-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: 64px;
        }

        .m04y-btn {
            padding: 16px 40px;
            border-radius: 12px;
            font-size: 1.1rem;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            min-width: 0;
        }

        .m04y-btn-primary {
            background: var(--m04y-text-dark);
            color: white;
        }

        .m04y-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.15);
        }

        .m04y-btn-secondary {
            background: white;
            color: var(--m04y-text-dark);
            border: 1px solid rgba(0,0,0,0.1);
        }

        .m04y-btn-secondary:hover {
            background: var(--m04y-bg-light);
        }

        /* Abstract Visual Instead of Images */
        .m04y-hero-visual {
            position: relative;
            width: 100%;
            height: 400px;
            background: var(--m04y-white);
            border-radius: 24px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.08);
            border: 1px solid rgba(0,0,0,0.03);
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .m04y-ai-pulse {
            width: 200px;
            height: 200px;
            background: var(--m04y-ai-gradient);
            filter: blur(80px);
            opacity: 0.3;
            animation: m04y-pulse 8s infinite alternate;
        }

        @keyframes m04y-pulse {
            from { transform: scale(1); opacity: 0.2; }
            to { transform: scale(1.5); opacity: 0.4; }
        }

        .m04y-visual-overlay {
            position: absolute;
            inset: 0;
            background: repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0,0,0,0.01) 41px);
        }

        /* Matrix Grid */
        .m04y-matrix {
            padding: 96px 0;
            background: white;
        }

        .m04y-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .m04y-section-title {
            font-size: clamp(2rem, 3vw, 2.8rem);
            margin-bottom: 16px;
        }

        .m04y-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .m04y-matrix-card {
            background: var(--m04y-bg-light);
            padding: 40px;
            border-radius: 24px;
            transition: all 0.4s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
            border: 1px solid transparent;
        }

        .m04y-matrix-card:hover {
            background: white;
            border-color: rgba(0, 98, 255, 0.1);
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .m04y-card-icon {
            width: 56px;
            height: 56px;
            background: white;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 24px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .m04y-card-title {
            font-size: 1.5rem;
            margin-bottom: 12px;
            color: var(--m04y-text-dark);
        }

        .m04y-card-highlight {
            font-size: 0.95rem;
            color: var(--m04y-ai-blue);
            font-weight: 600;
            margin-bottom: 16px;
        }

        .m04y-feature-list {
            list-style: none;
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .m04y-feature-item {
            font-size: 0.9rem;
            color: var(--m04y-text-gray);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
        }

        .m04y-feature-item::before {
            content: '•';
            color: var(--m04y-ai-blue);
            margin-right: 8px;
            font-weight: bold;
        }

        /* Dynamic Content Section */
        .m04y-dynamic {
            padding: 96px 0;
            background: #000;
            color: white;
        }

        .m04y-dynamic .m04y-section-title {
            color: white;
        }

        .m04y-article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 24px;
        }

        .m04y-article-item {
            background: #111;
            padding: 32px;
            border-radius: 16px;
            border: 1px solid #222;
        }

        /* Footer */
        .m04y-footer {
            padding: 80px 0 40px;
            background: var(--m04y-white);
            border-top: 1px solid rgba(0,0,0,0.05);
        }

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

        .m04y-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--m04y-primary);
        }

        .m04y-footer-brand p {
            color: var(--m04y-text-gray);
            font-size: 0.9rem;
        }

        .m04y-footer-links h4 {
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .m04y-footer-links ul {
            list-style: none;
        }

        .m04y-footer-links li {
            margin-bottom: 12px;
        }

        .m04y-footer-links a {
            text-decoration: none;
            color: var(--m04y-text-gray);
            font-size: 0.9rem;
            transition: color 0.3s;
        }

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

        .m04y-footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            color: var(--m04y-text-gray);
            font-size: 0.85rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .m04y-navbar { padding: 12px 0; }
            .m04y-menu { display: none; } /* Simplified for mobile */
            .m04y-hero { padding-top: 120px; }
            .m04y-hero-title { font-size: 2.5rem; }
            .m04y-matrix-grid { grid-template-columns: 1fr; }
            .m04y-cta-group { flex-direction: column; }
            .m04y-btn { width: 100%; text-align: center; }
        }