:root{--ink:#1d1d1f;--muted:#6e6e73;--bg:#f5f5f7;--card:#fff;--line:#d2d2d7;--blue:#0071e3;--blue2:#0077ed;--red:#d70015}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at 50% -10%,#fff 0,#f5f5f7 42%);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang TC",sans-serif;-webkit-font-smoothing:antialiased}.shell{width:min(920px,calc(100% - 40px));margin:auto;padding:72px 0 64px}header{text-align:center;margin:0 auto 44px;max-width:760px}.eyebrow{color:var(--blue);font-size:14px;font-weight:650;letter-spacing:.02em}.eyebrow span{display:none}h1{margin:10px 0 16px;font-size:clamp(44px,7vw,76px);font-weight:700;line-height:1.02;letter-spacing:-.055em}h1 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