.a-main { flex: 1; width: 100%; }
.a-hero { height: 220px; }
.a-lista { max-width: 800px; margin: 0 auto; padding: 28px 20px 8px; display: flex; flex-direction: column; gap: 10px; }
.a-item { background: #ffffff; border: 1px solid #e4e6ee; border-radius: 12px; }
.a-item summary {
  cursor: pointer;
  padding: 16px 18px;
  font-weight: 700;
  font-size: 16px;
  list-style: none;
}
.a-item summary::-webkit-details-marker { display: none; }
.a-item p { margin: 0; padding: 0 18px 16px; white-space: pre-wrap; line-height: 1.55; color: #3a3d48; }
.a-contacto { max-width: 800px; margin: 8px auto 48px; padding: 0 20px; }
.a-caja { background: #ffffff; border: 1px solid #e4e6ee; border-radius: 14px; padding: 22px; }
.a-caja h2 { margin: 0 0 8px; font-size: 26px; }
.a-caja > p { margin: 0 0 16px; color: #3a3d48; line-height: 1.5; }
.a-campo { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; font-weight: 600; font-size: 14px; }
.a-campo input, .a-campo textarea {
  font: inherit;
  font-weight: 400;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid #d8dae4;
  color: #1d1f24;
}
.a-enviar {
  padding: 12px 22px;
  border: 0;
  border-radius: 10px;
  background: #5b5fe0;
  color: #ffffff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.a-enviar:hover { background: #4548c6; }
.a-nota, .a-aviso { font-size: 13px; color: #6b6f7c; margin: 10px 0 0; }
.a-aviso { color: #9a3b2f; }

@media (max-width: 768px) {
  .a-hero { height: 180px; }
}