.panel-heading .fa {
  transition: transform 0.3s ease;
  transform: rotate(-45deg);
  padding: 5px;
  color: #556af1;
}
.panel-heading:not(.collapsed) .fa {
  transform: rotate(0deg);
}
.question-container {
  border-radius: 6px;
  border: solid 1px var(--main-border-color);
  overflow: hidden;
  border-bottom: solid 0px rgba(50,50,50,0);
}
.question {
  cursor: pointer;
  position: relative;
  margin-bottom: 10px;
  padding: 2.5rem 4rem;
  margin-bottom: 0;
  border-bottom: solid 1px var(--main-border-color);
}
.question i {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
.question.active i.fa.fa-plus {
  display: none;
}
.question.active i.fa.fa-minus {
  display: inline-block;
}
.answer.active {
  display: block; /* 移除重复的 display 属性 */
  background-color: var(--focus-color);
  flex: 1 1 auto;
  min-height: 1px;
  color: #fff !important;
  padding: 2.5rem 4.5rem;
}
@keyframes bounce {
  0% { transform: scaleY(0.3); background-color: green; }
  50% { transform: scaleY(1); background-color: orange; }
  100% { transform: scaleY(0.3); background-color: green; }
}
.tab2_content.active {
  display: block;
}
/* 移除重复的 .tab2_content.active */
#accordionhelp-content {
  margin-bottom: 20px;
}
.tab-container {
  width: 80%;
  margin: auto;
}
.tabs {
  display: flex;
  cursor: pointer;
  padding: 20px 0;
}
.tab {
  padding: 10px 15px;
  transition: background-color 0.3s;
  border-radius: 10px;
  background: var(--muted-bg-color);
  margin: 0px 5px;
  font-size: 14px;
}
.tab.active {
  color: #fff;
  background-color: #556af1;
  transform: scale(1.05);
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
  transition: all 0.3s ease;
}
.tab-content {
  position: relative;
  overflow: hidden;
}
.tab2_content {
  display: none;
}
.button {
  display: inline-block;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: bold;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: none;
  border-radius: 5px;
  background-color: #556af1;
  color: #fff;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}
.button:hover {
  background-color: #3e53c4;
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}