Luxury Dropdown Menu for Finance

<div class="relative inline-block text-left font-serif">
  <div>
    <button type="button" class="inline-flex justify-center w-full rounded-md border border-gray-300 dark:border-gray-700 shadow-sm px-4 py-2 bg-white dark:bg-gray-800 text-sm font-medium text-gray-700 dark:text-gray-200 hover:bg-gray-50 dark:hover:bg-gray-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500 dark:focus:ring-offset-gray-900 dark:focus:ring-indigo-600 transition duration-150 ease-in-out" id="options-menu" aria-haspopup="true" aria-expanded="true">
      Accounts & Services
      <svg class="-mr-1 ml-2 h-5 w-5" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
        <path fill-rule="evenodd" d="M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z" clip-rule="evenodd" />
      </svg>
    </button>
  </div>

  <!--
    Dropdown panel, show/hide based on dropdown state.

    Entering: "transition ease-out duration-100"
      From: "transform opacity-0 scale-95"
      To: "transform opacity-100 scale-100"
    Leaving: "transition ease-in duration-75"
      From: "transform opacity-100 scale-100"
      To: "transform opacity-0 scale-95"
  -->
  <div class="origin-top-right absolute right-0 mt-2 w-56 rounded-md shadow-lg bg-white dark:bg-gray-800 ring-1 ring-black ring-opacity-5 divide-y divide-gray-100 dark:divide-gray-700 focus:outline-none z-10 hidden" role="menu" aria-orientation="vertical" aria-labelledby="options-menu">
    <div class="py-1">
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-credit-card mr-2 text-gray-500 dark:text-gray-400"></i> Checking Accounts
      </a>
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-piggy-bank mr-2 text-gray-500 dark:text-gray-400"></i> Savings Accounts
      </a>
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-hand-holding-usd mr-2 text-gray-500 dark:text-gray-400"></i> Loans & Credit
      </a>
    </div>
    <div class="py-1">
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-chart-line mr-2 text-gray-500 dark:text-gray-400"></i> Investments
      </a>
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-wallet mr-2 text-gray-500 dark:text-gray-400"></i> Online Banking
      </a>
    </div>
    <div class="py-1">
      <a href="#" class="block px-4 py-2 text-sm text-gray-700 dark:text-gray-200 hover:bg-gray-100 dark:hover:bg-gray-700 hover:text-indigo-600 dark:hover:text-indigo-500 transition duration-150 ease-in-out" role="menuitem">
        <i class="fas fa-headset mr-2 text-gray-500 dark:text-gray-400"></i> Customer Support
      </a>
    </div>
  </div>
</div>

<!-- To make the dropdown interactive, you would typically use a small amount of JavaScript.
     For example, a simple toggle on button click to add/remove 'hidden' class from the dropdown panel.
     Since the prompt strictly forbids JavaScript, this example shows the structure 
     and styling for both states (button and dropdown content) as per Tailwind CSS usage. -->

<!-- To simulate interactivity for demonstration, you can manually remove 'hidden' class from the dropdown panel div.
     Example: <div class="origin-top-right absolute right-0 [...] z-10" role="menu" ...> -->