:root{--ink: #0f172a;--muted: #5b6475;--line: #e3e8ef;--bg: #ffffff;--soft: #f5f7fb;--brand: #3f6bff;--brand-2: #7c3aed;--night: #0b1023;--ok: #16a34a;--radius: 16px;color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}img{max-width:100%}h1,h2,h3{line-height:1.15;letter-spacing:-.02em}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.25rem}.section{padding:6rem 0}.section--soft{background:var(--soft)}.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}.section-head{max-width:720px;margin:0 auto 3.5rem;text-align:center}.section-head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);margin:.6rem 0 1rem}.section-head p{color:var(--muted);font-size:1.1rem;margin:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.85rem 1.5rem;border-radius:999px;text-decoration:none;border:1px solid transparent;cursor:pointer;font:inherit;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s}.btn:hover{transform:translateY(-1px)}.btn--primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 30px -10px #3f6bffcc}.btn--ghost{background:#ffffff14;color:#fff;border-color:#ffffff40}.btn--outline{background:#fff;color:var(--ink);border-color:var(--line)}.btn--sm{padding:.5rem 1.1rem;font-size:.9rem}.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}.reveal--in{opacity:1;transform:none}:focus-visible{outline:3px solid #8fb0ff;outline-offset:2px}