:root{--bg:#ffffff;--bg-soft:#f5f5f7;--bg-dark:#000000;--text:#1d1d1f;--text-2:#6e6e73;--text-3:#6e6e73;--text-on-dark:#a1a1a6;--link:#0071e3;--link-hover:#0077ed;--border:rgba(0,0,0,0.08);--border-strong:rgba(0,0,0,0.16);--blue-deep:#001d43;--shadow-card:0 8px 28px rgba(0,0,0,0.06),0 2px 8px rgba(0,0,0,0.04);--shadow-card-hover:0 20px 48px rgba(0,0,0,0.10),0 4px 12px rgba(0,0,0,0.06);--font-sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue",Inter,"Segoe UI",Roboto,sans-serif;--font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Monaco,Consolas,monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--text);background:var(--bg);font-weight:400;line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}.container{max-width:1024px;margin:0 auto;padding:0 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var(--border-strong)}.btn-ghost:hover{border-color:var(--link);background:rgba(0,113,227,0.05)}.btn-light{background:#fff;color:var(--text)}.btn-light:hover{background:#f0f0f2}.hero{padding:110px 0 90px;text-align:center;position:relative;overflow:hidden;background:var(--bg)}.hero::before{content:'';position:absolute;top:-220px;left:50%;transform:translateX(-50%);width:1100px;height:640px;border-radius:50%;background:radial-gradient(ellipse at center,rgba(0,113,227,0.07),transparent 62%);pointer-events:none}.hero-badge{display:inline-block;padding:6px 16px;border-radius:980px;background:var(--bg-soft);color:var(--text-2);font-size:13px;font-weight:500;margin-bottom:28px;border:1px solid var(--border)}.hero h1{font-size:72px;line-height:1.05;letter-spacing:-0.022em;max-width:880px;margin:0 auto 22px;font-weight:600}.hero h1 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