@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&display=swap";:root{--primary: #2196F3;--muted: #666;--bg: #ffffff;--card-bg: #fbfdff;--max-width: 1100px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial;color:#111;background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.site-root{max-width:var(--max-width);margin:0 auto;padding:36px}.site-header{display:flex;align-items:center;justify-content:space-between;padding:4px 0}.brand{font-weight:800;font-size:28px}.site-nav a{margin-left:18px;color:var(--primary);text-decoration:none;font-weight:600}.hero{display:flex;gap:32px;align-items:center;margin-top:28px;padding:36px;border-radius:14px;background:linear-gradient(180deg,#2196f30f,#2196f305)}.hero-left{flex:1;min-width:280px}.hero-right{width:360px;display:flex;align-items:center;justify-content:center}.hero-title{font-size:48px;line-height:1.03;margin:0 0 16px;font-weight:800;color:#0b1a2b}.hero-sub{color:var(--muted);font-size:16px;margin-bottom:20px;max-width:560px}.btn-primary{display:inline-block;padding:12px 18px;background:var(--primary);color:#fff;border-radius:10px;text-decoration:none;font-weight:700;box-shadow:0 8px 18px #2196f32e}.phone-frame{width:260px;height:520px;border-radius:36px;box-shadow:0 20px 40px #0c18281f;overflow:hidden;background:#fff;border:10px solid rgba(0,0,0,.03);display:flex;align-items:center;justify-content:center}.phone-frame img{width:100%;height:100%;object-fit:cover;display:block}.section-title{text-align:center;font-size:28px;margin:54px 0 18px;font-weight:700}.features{padding:28px 12px 60px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.feature-card{background:var(--card-bg);padding:18px;border-radius:12px;text-align:center;box-shadow:0 6px 18px #0b1a2b0a}.feature-icon{font-size:26px;margin-bottom:10px}.feature-card h3{margin:8px 0 6px;font-size:16px}.feature-card p{color:var(--muted);font-size:14px}.site-footer{margin-top:36px;padding-top:18px;border-top:1px solid rgba(12,24,40,.06);color:#444;font-size:13px;text-align:left}@media(max-width:900px){.hero{flex-direction:column;align-items:flex-start;padding:24px}.hero-right{width:100%;display:flex;justify-content:flex-start}.phone-frame{width:220px;height:460px}.feature-grid{grid-template-columns:repeat(2,1fr)}.hero-title{font-size:36px}}@media(max-width:480px){.site-root{padding:20px}.hero-title{font-size:28px}.feature-grid{grid-template-columns:1fr}.phone-frame{width:180px;height:380px}}.btn-mini{display:inline-block;padding:8px 12px;background:var(--primary);color:#fff;border-radius:8px;text-decoration:none;font-weight:600}.link-ghost{color:#1e40ff;text-decoration:underline;font-weight:600}