.qianhe-faq {
  position: relative;
}
.qianhe-padding {
  padding: 100px 0;
}

.cd-faq {
  width: 100%;       
  max-width: 100%;   
  margin: 2em auto;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}
.cd-faq:after {
  content: "";
  display: table;
  clear: both;
}


.cd-faq-group {
  counter-reset: faq-counter; 
}

.cd-faq-group .faq-list.card {
  width: 100%;
  margin-top: 12px;
  border: 1px solid #dfe3e6;
}

.cd-faq-group .faq-list .card-header {
  padding: 15px 20px;
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08); 
}

.cd-faq-group .faq-list .collapse,
.cd-faq-group .faq-list .collapsing {
  border-top: 1px solid #dfe3e6;
}

.cd-faq-items h3 {
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}


.cd-faq-items h3 span {
  display: block;
  flex: 1;
  padding-right: 20px;
  font-size: 17px;
  letter-spacing: 0;
}

.cd-faq-items h3 span::before {
  counter-increment: faq-counter;        
  content: counter(faq-counter) ". ";    
  font-weight: bold;
  margin-right: 5px;                     
}

.cd-faq-items h3 .toggle-btn {
  display: inline-block;
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}


.cd-faq-items h3 .toggle-btn::before,

.cd-faq-items h3 .toggle-btn::after {
  content: "";
  position: absolute;
  background-color: #000000; 
  transition: transform 0.25s ease, opacity 0.25s ease;
  top: 50%;
  left: 50%;
}


.cd-faq-items h3 .toggle-btn::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}


.cd-faq-items h3 .toggle-btn::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}


.cd-faq-items h3[aria-expanded="true"] .toggle-btn::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.cd-faq-items h3[aria-expanded="true"] .toggle-btn::before {
  transform: translate(-50%, -50%) rotate(180deg);
}


.cd-faq-items .card-body {
  overflow: hidden;
}

.cd-faq-items {
  width: 100% !important;
  padding: 0 !important;
}

.faq-group-title {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  margin-top: 30px;
  margin-bottom: 15px;
  padding-left: 5px;
}
.cd-faq-items .faq-group-title:first-child {
  margin-top: 10px;
}