/* カスタムスタイル */
.rb-sec-head { border-left: 5px solid #0056b3; padding-left: 1rem; }
.rb-sec-title { font-size: 2rem; }
.rb-sec-sub-c { color: #555; }
.required::after { content: "必須"; color: red; }
#confirm-area { display: none; }