:root{--brand: #4f46e5;--brand-2: #06b6d4;--brand-grad: linear-gradient(120deg, #6d28d9, #4f46e5 55%, #06b6d4);--ink: #0f172a;--muted: #64748b;--line: #e2e8f0;--bg: #f8fafc;--card: #ffffff;--ok: #16a34a;--warn: #d97706;--bad: #dc2626;--radius: 14px;--shadow: 0 1px 3px rgba(15,23,42,.08), 0 8px 24px rgba(15,23,42,.05)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1180px;margin:0 auto;padding:0 20px}.nav{position:sticky;top:0;z-index:40;background:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav-inner{display:flex;align-items:center;gap:22px;height:64px}.nav a{color:var(--ink);font-weight:500}.nav-links{display:flex;gap:20px;margin-left:auto;align-items:center}.nav-links a.active{color:var(--brand)}.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px}.logo:hover{text-decoration:none}.logo .mark{width:34px;height:34px;border-radius:9px;display:block}.logo .word{letter-spacing:-.5px}.logo .word b{color:var(--ink)}.logo .word .dot{color:var(--brand)}.logo .word .tld{color:var(--brand-2)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;border:1px solid transparent;font-weight:600;cursor:pointer;font-size:14px;background:#eef2ff;color:var(--brand)}.btn:hover{text-decoration:none;filter:brightness(.98)}.btn-primary{background:var(--brand-grad);color:#fff}.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}.btn-sm{padding:6px 12px;font-size:13px}.btn:disabled{opacity:.6;cursor:not-allowed}.hero{padding:72px 0 48px;text-align:center}.hero h1{font-size:46px;line-height:1.1;margin:0 0 16px;letter-spacing:-1.5px}.hero h1 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