:root{--ink:#17243a;--muted:#718097;--line:#e1e7ef;--blue:#2864e8;--blue-dark:#174ab9;--surface:#fff;--bg:#f5f7fb;--success:#16845a;--error:#cb3d4c}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans','Noto Sans SC',sans-serif;min-height:100vh}.page-shell{width:min(100% - 32px,760px);margin:0 auto;padding:26px 0 34px}.topbar{display:flex;align-items:center;gap:12px;margin-bottom:26px}.brand-mark{width:40px;height:40px;display:grid;place-items:center;background:var(--ink);color:#fff;border-radius:12px;font-weight:700;font-size:19px}.eyebrow{font-size:10px;letter-spacing:.18em;font-weight:700;color:var(--muted);margin:0 0 2px}.accent{color:var(--blue)}h1{font-size:18px;line-height:1.2;margin:0;font-weight:700}.secure-badge{margin-left:auto;display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:99px;padding:7px 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