*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif;line-height:1.6;color:#202223;background:#fff}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
header{padding:20px 0;border-bottom:1px solid #e1e3e5}
nav{display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center}.logo img{height:32px;width:auto;display:block}
.nav-links a{margin-left:30px;text-decoration:none;color:#202223;font-weight:500}
.hero{padding:80px 0;text-align:center}
h1{font-size:48px;font-weight:700;margin-bottom:20px;line-height:1.2}
.subtitle{font-size:20px;color:#6d7175;margin-bottom:40px}
.cta-btn{display:inline-block;background:#008060;color:#fff;padding:16px 40px;text-decoration:none;border-radius:6px;font-size:18px;font-weight:600;transition:.2s}
.cta-btn:hover{background:#006e52}
.features{padding:60px 0;background:#f6f6f7}
.features h2{text-align:center;font-size:36px;margin-bottom:50px}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:30px}
.feature-card{background:#fff;padding:30px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.feature-card h3{font-size:22px;margin-bottom:12px}
.feature-card p{color:#6d7175;font-size:16px}
.download-section{padding:60px 0}
.download-section h2{text-align:center;font-size:36px;margin-bottom:40px}
.download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;max-width:900px;margin:0 auto}
.download-card{border:2px solid #e1e3e5;padding:30px;border-radius:8px;text-align:center}
.download-card h3{font-size:24px;margin-bottom:15px}
.download-card ul{list-style:none;margin:20px 0;text-align:left}
.download-card li{padding:8px 0;color:#6d7175}
.download-btn{display:inline-block;background:#202223;color:#fff;padding:14px 30px;text-decoration:none;border-radius:6px;font-weight:600;margin-top:15px}
.download-btn:hover{background:#44474a}
.support{padding:60px 0}
.support h2{text-align:center;font-size:36px;margin-bottom:30px}
.support p{max-width:800px;margin:0 auto;font-size:18px;color:#6d7175;line-height:1.8}
footer{background:#f6f6f7;padding:40px 0;text-align:center;color:#6d7175;margin-top:60px}
footer p{margin-bottom:10px}
footer a{color:#008060;text-decoration:none}