:root{ --primary-color:#1976D2; --accent-color:#27ae60; --text-color:#333; --text-light:#666; --bg-gradient:linear-gradient(180deg,#ffffff 0%,#f1f8f3 100%); --card-bg:#ffffff;}*{box-sizing:border-box;}body{font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;margin:0;color:var(--text-color);line-height:1.6;}.hero{padding:4rem 1.5rem;text-align:center;background:var(--bg-gradient);border-bottom:1px solid #e0e0e0;margin-bottom:3rem;}.hero-content{max-width:800px;margin:0 auto;}.hero-title{font-size:2.5rem;font-weight:800;color:var(--primary-color);margin:0 0 1rem 0;}.hero-lead-highlight{font-size:1.5rem;font-weight:600;color:var(--text-color);margin-bottom:1rem;}.hero-text{font-size:1.15rem;color:var(--text-light);max-width:650px;margin:0 auto 1.5rem auto;}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1200px;margin:0 auto 5rem auto;padding:0 1.5rem;}.feature-card{background:var(--card-bg);padding:2rem;border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,0.05);border:1px solid #eee;text-align:center;transition:transform 0.2s ease,box-shadow 0.2s ease,border-color 0.2s ease;display:flex;flex-direction:column;align-items:center;}.feature-card:hover{transform:translateY(-5px);box-shadow:0 8px 24px rgba(0,0,0,0.1);border-color:var(--accent-color);}.feature-card .icon{font-size:3rem;margin-bottom:1rem;background:#f4f8fb;width:80px;height:80px;line-height:80px;border-radius:50%;display:inline-block;}.feature-card h3{color:#2c3e50;font-size:1.3rem;margin:0.5rem 0 1rem 0;}.feature-card p{color:var(--text-light);font-size:1rem;margin:0;}.cta-footer{text-align:center;padding:4rem 1.5rem;background-color:#fafafa;border-top:1px solid #eee;}.hero-cta{display:flex;flex-direction:column;align-items:center;gap:1rem;}.btn-download{background-color:var(--primary-color);color:#fff;font-size:1.1rem;font-weight:700;padding:1rem 2.5rem;border-radius:50px;text-decoration:none;box-shadow:0 4px 15px rgba(25,118,210,0.3);transition:background-color 0.2s ease,transform 0.2s ease;}.btn-download:hover{background-color:#1565C0;transform:scale(1.02);}.store-hint{color:#999;font-size:0.85rem;margin-top:0.5rem;}