:root {
            --black: #000;
            --white: #fff;
            --gray: #86868b;
            --light-gray: #f5f5f7;
            --dark-gray: #1d1d1f;
            --blue: #2997ff;
            --header-height: 44px;
            --max-width: 1440px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
a {
    text-decoration: none;
}
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 
                         'SF Pro Icons', 'Helvetica Neue', Helvetica, Arial, 
                         sans-serif;
            color: var(--black);
            background-color: var(--white);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }

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

        /* Utility Classes */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 22px;
        }

        .text-center {
            text-align: center;
        }

        /* Header/Navigation */
        .global-header {
            position: sticky;
            top: 0;
            height: var(--header-height);
            backdrop-filter: blur(10px);
            background-color: rgba(0, 0, 0, 0.8);
            z-index: 100;
        }

        .nav-container {
            height: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .apple-logo {
            width: 112px;
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            gap: 24px;
        }

        .nav-link {
            color: var(--white);
            font-size: 12px;
            font-weight: 400;
            opacity: 0.8;
            transition: opacity 0.3s;
        }

        .nav-link:hover {
            opacity: 1;
        }

        /* Hero Sections */
        .hero {
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: var(--header-height) 0 0;
            background-color: var(--light-gray);
            background-size: cover;
            background-position: center;
        }

        .hero-dark {
            background-color: var(--black);
            color: var(--white);
        }

        .hero-iphone {
            background-image: linear-gradient(rgba(245, 245, 247, 0.8), rgba(245, 245, 247, 0.8)), 
                             url('https://www.airwheel.net/images/se3s/airwheel-se3s-electric-luggage-09.jpg');
        }

        .hero-mac {
            background-image: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                             url('https://www.airwheel.net/images/se3mini/airwheel_se3mini_riding_luggage_0506.jpg');
        }

        .hero-title {
            font-size: clamp(2rem, 8vw, 4rem);
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .hero-subtitle {
            font-size: clamp(0.7rem, 0.5vw, 1.25rem)
            font-weight: 100;
            margin-bottom: 0.5rem;
        }

        .hero-links {
            display: flex;
            gap: 2rem;
            margin-top: 1.5rem;
        }

        .hero-link {
            font-size: 1.25rem;
            color: var(--blue);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }

        .hero-link::after {
            content: "›";
            font-size: 1.5rem;
        }

        /* Product Grid */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
            gap: 10px;
            padding: 10px;
        }

        .product-card {
            background-color: var(--light-gray);
            border-radius: 18px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0.1rem 0.2rem;
            min-height: 500px;
        }

        .product-card-large {
            grid-column: span 2;
            min-height: 600px;
        }

        .product-title {
           /* font-size: clamp(1.5rem, 4vw, 2.5rem);*/
            margin-bottom: 0.5rem;
        }

        .product-subtitle {
            font-size: clamp(0.6rem, 1.5vw, 0.85rem);
            font-weight: 400;
            margin-bottom: 1.5rem;
        }

        .product-links {
            display: flex;
            gap: 1.5rem;
        }

        /* News Section */
        .news-section {
            padding: 4rem 0;
            background-color: var(--light-gray);
        }

        .section-title {
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 2rem;
            text-align: center;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
        }

        .news-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .news-image {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }

        .news-content {
            padding: 1.5rem;
        }

        .news-date {
            font-size: 0.75rem;
            color: var(--gray);
            margin-bottom: 0.5rem;
        }

        .news-title {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        .news-excerpt {
            font-size: 0.9rem;
            color: var(--gray);
            margin-bottom: 1rem;
        }

        .news-link {
            color: var(--blue);
            font-size: 0.9rem;
            font-weight: 500;
        }

        /* Footer */
        .global-footer {
            background-color: var(--light-gray);
            padding: 2rem 0;
            font-size: 0.75rem;
            color: var(--gray);
        }

        .footer-disclaimer {
            padding: 1rem 0;
            border-bottom: 1px solid #d2d2d7;
            margin-bottom: 1.5rem;
        }

        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1.5rem;
            margin-bottom: 1.5rem;
        }

        .footer-column h3 {
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--dark-gray);
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column li {
            margin-bottom: 0.5rem;
        }

        .footer-column a {
            color: inherit;
        }

        .footer-column a:hover {
            text-decoration: underline;
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1rem;
            border-top: 1px solid #d2d2d7;
        }

        /* Mobile Navigation */
        .mobile-nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--white);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Responsive Adjustments */
        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                inset: 0 0 0 30%;
                flex-direction: column;
                padding: min(30vh, 10rem) 2rem;
                background: rgba(0, 0, 0, 0.9);
                transform: translateX(100%);
                transition: transform 350ms ease-out;
                z-index: 99;
            }

            .nav-links[data-visible="true"] {
                transform: translateX(0%);
            }

            .mobile-nav-toggle {
                display: block;
                z-index: 100;
            }

            .product-card-large {
                grid-column: span 1;
            }

            .footer-legal {
                flex-direction: column;
            }

            .hero-links {
                flex-direction: column;
                gap: 1rem;
            }
        }