:root{--bg:#f4f6f9;--surface:#ffffff;--ink:#0a2540;--muted:#5b6b7b;--primary:#0a2540;--accent:#e2231a;--ok:#1a7f37;--warn:#9a6700;--err:#b42318;--border:#dbe1e8;--radius:12px}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}.app-shell{max-width:640px;margin:0 auto;min-height:100vh;padding:16px 16px 88px}h1{font-size:1.5rem;margin:8px 0 16px}h2{font-size:1.15rem;margin:20px 0 10px}a{color:var(--primary)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.field{margin-bottom:14px}.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.9rem}.field input{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:#fff}.field .hint{color:var(--muted);font-size:.82rem;margin-top:4px}.field .err{color:var(--err);font-size:.85rem;margin-top:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:14px 16px;border:none;border-radius:10px;background:var(--primary);color:#fff;font-size:1rem;font-weight:600;cursor:pointer}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--primary);border:1px solid var(--border)}.alert{border-radius:8px;padding:12px 14px;margin-bottom:14px;font-size:.92rem}.alert-err{background:#fdeceb;color:var(--err);border:1px solid #f5c2bd}.alert-ok{background:#e8f6ec;color:var(--ok);border:1px solid #b7e0c2}.alert-warn{background:#fff7e0;color:#8a6100;border:1px solid #f0dfa8}.muted{color:var(--muted)}.center{text-align:center}.stack>*+*{margin-top:10px}.list-row{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border)}.list-row:last-child{border-bottom:none}.badge{display:inline-flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;padding:3px 10px;border-radius:999px;border:1px solid}.badge-ok{color:var(--ok);border-color:var(--ok);background:#e8f6ec}.badge-warn{color:var(--warn);border-color:var(--warn);background:#fdf6e3}.badge-err{color:var(--err);border-color:var(--err);background:#fdeceb}.badge-unknown{color:var(--muted);border-color:var(--border);background:#f0f3f6}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:8px 4px;max-width:640px;margin:0 auto}.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.72rem;text-decoration:none;color:var(--muted)}.bottom-nav a.active{color:var(--primary);font-weight:700}.skeleton{background:linear-gradient(90deg,#eee,#f5f5f5,#eee);border-radius:8px;height:56px;margin-bottom:10px}.lang-switcher{position:fixed;top:10px;right:12px;z-index:50;display:flex;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:2px}.lang-switcher button{border:none;background:transparent;color:var(--muted);font-size:.72rem;font-weight:700;padding:4px 8px;border-radius:999px;cursor:pointer}.lang-switcher button.active{background:var(--primary);color:#fff}