:root{--color-bg: #f5f5f7;--color-text-primary: #1d1d1f;--color-text-secondary: #86868b;--color-accent: #0071e3;--color-surface: #ffffff;--font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 32px;--spacing-xl: 64px;--spacing-xxl: 128px;--transition-fast: .2s ease;--transition-smooth: .5s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-primary);background-color:var(--color-bg);color:var(--color-text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-text-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.section{padding:var(--spacing-xxl) 0}.fade-in-up{animation:fadeInUp 1s ease-out forwards;opacity:0;transform:translateY(20px)}@keyframes fadeInUp{to{opacity:1;transform:translateY(0)}}.header{position:fixed;top:0;left:0;width:100%;background:#f5f5f7cc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:1000;border-bottom:1px solid rgba(0,0,0,.05)}.header-content{display:flex;justify-content:space-between;align-items:center;height:48px}.logo{font-weight:600;font-size:14px;letter-spacing:-.01em;color:var(--color-text-primary);text-decoration:none;transition:opacity var(--transition-fast)}.logo:hover{opacity:.8}.nav{display:flex;gap:var(--spacing-lg)}.nav-link{font-size:12px;color:var(--color-text-secondary);transition:color var(--transition-fast)}.nav-link:hover{color:var(--color-text-primary)}.hero{height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding-top:48px}.hero-title{font-size:56px;line-height:1.07143;font-weight:600;letter-spacing:-.005em;margin-bottom:var(--spacing-sm);color:var(--color-text-primary)}.hero-subtitle{font-size:28px;line-height:1.10722;font-weight:400;letter-spacing:.004em;color:var(--color-text-secondary);margin-bottom:var(--spacing-xl)}.hero-cta{display:flex;justify-content:center;gap:var(--spacing-md)}.button-primary,.button-secondary{padding:12px 24px;border-radius:980px;font-size:17px;line-height:1.17648;font-weight:400;letter-spacing:-.022em;transition:all var(--transition-fast)}.button-primary{background:var(--color-text-primary);color:var(--color-bg)}.button-primary:hover{background:#333}.button-secondary{color:var(--color-accent);background:transparent}.button-secondary:hover{text-decoration:underline}@media(max-width:768px){.hero-title{font-size:32px}}.content-section{padding:var(--spacing-xxl) 0;border-top:1px solid rgba(0,0,0,.05)}.section-title{font-size:40px;line-height:1.1;font-weight:600;letter-spacing:0em;margin-bottom:var(--spacing-xl);color:var(--color-text-primary)}.section-content{font-size:21px;line-height:1.381;font-weight:400;letter-spacing:.011em;color:var(--color-text-secondary)}.floating-avatar-container{position:fixed;bottom:32px;right:32px;z-index:2000;filter:drop-shadow(0 4px 12px rgba(0,0,0,.15));transition:transform var(--transition-smooth)}.floating-avatar-container:hover{transform:scale(1.1)}.floating-avatar{width:160px;height:160px;border-radius:50%;border:2px solid white;object-fit:cover;display:block}@media(max-width:768px){.floating-avatar{width:128px;height:128px}.floating-avatar-container{bottom:24px;right:24px}}