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40px);margin:0 auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border:none;border-radius:12px;font-weight:700;letter-spacing:.04em;cursor:pointer;transition:transform .18s ease,filter .18s ease,background .18s ease}.btn:hover{transform:translateY(-1px);filter:brightness(1.03)}.btn-primary{color:#fff;background:linear-gradient(135deg,#5ed0db 0%,var(--cyan) 48%,var(--cyan-deep) 100%)}.btn-ghost{color:var(--ink);background:#ffffffb3;border:1px solid var(--line)}.section{padding:72px 0}.section-title{margin:0;font-family:var(--display);font-size:clamp(28px,4vw,40px);font-weight:700;letter-spacing:.04em}.section-desc{margin:12px 0 0;max-width:36em;color:var(--muted);line-height:1.7}