:root{--bg:#f5faff;--surface:#fff;--ink:#0f172a;--muted:#64748b;--brand:#1ea1f2;--brand-dark:#1787cc;--line:#e3eef7;--radius:18px;--shadow:0 10px 28px #0284c714;--success:#10b981;--warning:#f59e0b}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:Be Vietnam Pro,Outfit,sans-serif;line-height:1.5;overflow-x:hidden}a{color:inherit;text-decoration:none}.container{width:100%;max-width:1200px;margin:auto;padding:0 24px}.section-block{margin-top:72px;margin-bottom:72px}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}.btn{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:999px;justify-content:center;align-items:center;padding:11px 20px;font-size:15px;font-weight:500;transition:all .2s;display:inline-flex;position:relative;overflow:hidden}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0000001a}.btn.primary{background:linear-gradient(135deg,var(--brand),#0ea5e9);color:#fff;border:none;font-weight:600;box-shadow:0 8px 24px #1ea1f266}.btn.primary:hover{background:linear-gradient(135deg,var(--brand-dark),#0284c7);box-shadow:0 12px 28px #1ea1f280}.btn.ghost{color:var(--brand);background:0 0;border:none;font-weight:600}.btn.ghost:hover{background:#1ea1f214}