:root{--brand:#0f766e;--brand-2:#14b8a6;--ink:#0f172a;--muted:#475569;--bg:#ffffff;--surface:#f8fafc;--border:#e2e8f0}*{box-sizing:border-box;margin:0}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.container{max-width:1080px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;gap:8px;border-radius:10px;padding:12px 22px;font-weight:600;font-size:15px;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(135deg,var(--brand) 0,var(--brand-2) 100%);color:#fff;box-shadow:0 6px 20px rgba(15,118,110,.28)}.btn-ghost{border:1px solid var(--border);color:var(--ink);background:#fff}.badge{display:inline-block;padding:5px 12px;border-radius:999px;background:rgba(20,184,166,.12);color:var(--brand);font-size:13px;font-weight:600}.card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px}