Us has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! There’s workwear, and then there’s rich mom workwear — the kind of perfectly tailored style that suggests you have a corner office, an impressive 401(k) and somewhere fabulous to be after 5 p.m. Luckily, achieving the look has less to do with designer labels and more to do with choosing the right elevated details. Think: chocolate brown, sweeping trousers, gold hardware and sharp tailoring. Amazon happens to be packed with pieces that nail the ‘corporate-cool aesthetic,’ without requiring an executive-level salary. We found 13…