@import url("https://fonts.googleapis.com/css2?family=Noto+Sans:wght@300;400;500;600;700;800&display=swap");

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: "Noto Sans", Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif; background: #f0f2f5; color: #1a1a2e; min-height: 100vh; }
    a { text-decoration: none; color: inherit; }

    .page { display: none; }
    .page.active { display: block; }