:root{--lc-bg: #ffffff;--lc-text: #1f2937;--lc-muted: #6b7280}html,body{height:100%}body{margin:0;font-family:Open Sans,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--lc-bg);color:var(--lc-text)}.landing-wrapper{min-height:100vh;display:flex;align-items:center;justify-content:center;position:relative}.lg4-top-left{position:fixed;left:18px;top:18px;z-index:40;display:inline-block}.lg4-top-left img{display:block;max-width:140px;height:auto}.lc-main{text-align:center;padding:40px}.lc-cloud{width:clamp(200px,40vw,480px);height:auto;display:block;margin:0 auto 1rem;filter:drop-shadow(0 10px 20px rgba(16,24,40,.08))}.lc-title{font-size:clamp(28px,6vw,56px);margin:0 0 8px;font-weight:700;color:var(--lc-text)}.lc-desc{font-size:16px;color:var(--lc-muted);margin:0}@media (max-width: 640px){.lg4-top-left img{max-width:92px}.lc-title{font-size:28px}}