:root{--bg:#f6f8fc;--card:#fff;--text:#172033;--muted:#667085;--line:#e4e8f0;--primary:#6d5dfc;--primary2:#5546e8;--success:#0b8f63;--danger:#c73a48;--shadow:0 10px 30px rgba(30,40,70,.08);--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text);line-height:1.55}a{color:inherit}.container{width:min(1180px,92%);margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav-wrap{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:9px;text-decoration:none;font-weight:800;font-size:21px}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center}.brand-accent{color:var(--primary)}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{padding:9px 12px;border-radius:10px;text-decoration:none;color:#4b5565;font-weight:600}.nav-links a:hover,.nav-links a.active{background:#f0efff;color:var(--primary2)}.nav-cta{background:var(--primary)!important;color:#fff!important}.menu-btn{display:none;border:0;background:none;font-size:25px}.tool-page{padding:36px 0 60px}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted);font-size:14px;margin-bottom:20px}.breadcrumbs 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