.faq-section {
  max-width: 800px;
  margin: 0 auto 40px auto;
  background: rgba(255,255,255,0.95);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
  padding: 36px 24px 30px 24px;
}
.faq-item {
  margin-bottom: 14px;
  transition: margin 0.4s ease;
}
.faq-question {
  width: 100%;
  padding: 17px 24px;
  background: #6c757d;        /* оттенок серого */
  color: #fff;
  text-align: left;
  border: none;
  outline: none;
  border-radius: 6px;
  font-weight: 550;
  font-size: 1.1em;
  margin-bottom: 4px;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.faq-question:hover,
.faq-item.active .faq-question {
  background: #5a6268;        /* чуть темнее при наведении и раскрытии — как в Bootstrap */
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, padding-top 0.4s ease, padding-bottom 0.4s ease, margin-bottom 0.4s ease;
  background: #fff;
  color: #222;
  padding-left: 24px;
  padding-right: 24px;
  padding-top: 0;
  padding-bottom: 0;
  border-radius: 6px;
  margin-bottom: 0;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  opacity: 1;
  padding-top: 16px;
  padding-bottom: 10px;
  margin-bottom: 14px;
}
#selectBtn {
  min-width: 210px;
  min-height: 48px; /* или по размеру btn-lg */
}