html {
  font-family: sans-serif;
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

.text-center {
  text-align: center;
}

.color-white {
  color: #ffffff !important;
}

.color-white * {
  color: #ffffff !important;
}

.flipcard-flip-box-header {
  font-size: 28px;
  color: #ffffff !important;
  font-weight: bold;
  margin-bottom: 15px;
}

/* 正面标题样式 - 移除黑框 */
.flipcard-flip-box-front .flipcard-flip-box-header {
  opacity: 0.95;
  background: none;
  padding: 0;
  border-radius: 0;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none;
  transition: all 0.3s ease;
  margin-bottom: 0;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
}

/* 正面标题悬停效果 - 简化 */
.flipcard-flip-box:hover .flipcard-flip-box-front .flipcard-flip-box-header {
  opacity: 1;
  transform: none;
}

.flipcard-flip-box p,
.flipcard-flip-box li {
  font-size: 16px;
  line-height: 1.6em;
  color: #ffffff !important;
}

.flipcard-flip-box ul,
.flipcard-flip-box ol {
  color: #ffffff !important;
  text-align: left;
  margin: 20px 0;
  padding-left: 25px;
}

.flipcard-flip-box ul li,
.flipcard-flip-box ol li {
  margin-bottom: 10px;
  color: #ffffff !important;
  font-size: 16px;
}

.flipcard-flip-box strong {
  color: #ffffff !important;
  font-size: 16px;
}

/* 新增外层容器 */
.flipcard_wrapper {
  /* 这里可以按需添加容器样式，比如宽度限制或居中 */
  width: 100%;
}

.flipcard-box-container {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 15px;
  padding: 20px 10px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

@media screen and (min-width: 768px) {
  .flipcard-box-container {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-around;
  }
}

/* 平板设备优化 */
@media screen and (min-width: 768px) and (max-width: 1199px) {
  .flipcard-flip-box-img {
    width: 28px;
    max-width: 28px;
  }
  
  .flipcard-flip-box-front .flipcard-inner {
    padding: 25px 20px;
  }
  
  .flipcard-flip-box-front .flipcard-flip-box-header {
    font-size: 26px;
  }
}

@media screen and (min-width: 1200px) {
  .flipcard-box-container {
    flex-wrap: nowrap;
    justify-content: space-between;
  }
}

.flipcard-box-item {
  position: relative;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  width: 280px;
  margin-bottom: 0;
  max-width: 100%;
  flex: 0 0 auto;
}

@media screen and (max-width: 767px) {
  .flipcard-box-item {
    width: 100%;
    max-width: 300px;
  }
}

.flipcard-flip-box {
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  perspective: 800px; /* 1000px * 0.8 = 800px */
  -webkit-perspective: 800px;
}

.flipcard-flip-box-front,
.flipcard-flip-box-back {
  background-size: cover;
  background-position: center;
  border-radius: 12px;
  min-height: 320px;
  position: relative;
  -ms-transition: transform 0.6s cubic-bezier(.4,.2,.2,1);
  transition: transform 0.6s cubic-bezier(.4,.2,.2,1);
  -webkit-transition: transform 0.6s cubic-bezier(.4,.2,.2,1);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.flipcard-flip-box-front::before,
.flipcard-flip-box-back::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 12px;
  z-index: 1;
}

@media screen and (max-width: 767px) {
  .flipcard-flip-box-front,
  .flipcard-flip-box-back {
    min-height: 240px;
  }
  
  /* 移动端正面内容调整 */
  .flipcard-flip-box-front .flipcard-inner {
    padding: 15px 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    top: 0;
    transform: none;
    -webkit-transform: none;
    -ms-transform: none;
  }
  
  /* 移动端标题调整 */
  .flipcard-flip-box-front .flipcard-flip-box-header {
    font-size: 20px;
    padding: 0;
    border-radius: 0;
    background: none;
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.8);
  }
  
  /* 移动端箭头调整 - 减小尺寸 */
  .flipcard-flip-box-img {
    margin-top: 0;
    margin-bottom: 0;
    width: 22px;
    height: auto;
    max-width: 22px;
  }
  
  .flipcard-flip-box:hover .flipcard-flip-box-img {
    transform: translateY(-2px);
  }
  
  /* 移动端背面内容调整 */
  .flipcard-flip-box-back .flipcard-inner {
    padding: 20px 15px;
  }
}

/* 超小屏幕设备优化 */
@media screen and (max-width: 480px) {
  .flipcard-box-item {
    max-width: 280px;
  }
  
  .flipcard-flip-box-front,
  .flipcard-flip-box-back {
    min-height: 200px;
  }
  
  .flipcard-flip-box-front .flipcard-inner {
    padding: 12px 10px;
  }
  
  .flipcard-flip-box-front .flipcard-flip-box-header {
    font-size: 18px;
  }
  
  .flipcard-flip-box-img {
    width: 18px;
    max-width: 18px;
  }
  
  .flipcard-flip-box-back .flipcard-inner {
    padding: 15px 12px;
  }
  
  .flipcard-flip-box ul,
  .flipcard-flip-box ol {
    padding-left: 18px;
    margin: 12px 0;
  }
  
  .flipcard-flip-box p,
  .flipcard-flip-box li {
    font-size: 13px;
  }
}

.flipcard-flip-box-front {
  -ms-transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flipcard-flip-box:hover .flipcard-flip-box-front {
  -ms-transform: rotateY(-180deg);
  -webkit-transform: rotateY(-180deg);
  transform: rotateY(-180deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flipcard-flip-box-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;

  -ms-transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
  transform: rotateY(180deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flipcard-flip-box:hover .flipcard-flip-box-back {
  -ms-transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
  transform: rotateY(0deg);
  -webkit-transform-style: preserve-3d;
  -ms-transform-style: preserve-3d;
  transform-style: preserve-3d;
}

.flipcard-flip-box .flipcard-inner {
  position: absolute;
  left: 0;
  width: 100%;
  padding: 35px;
  outline: 1px solid transparent;
  -webkit-perspective: inherit;
  perspective: inherit;
  z-index: 2;
  transform: translateY(-50%) translateZ(30px) scale(0.85);
  -webkit-transform: translateY(-50%) translateZ(30px) scale(0.85);
  -ms-transform: translateY(-50%) translateZ(30px) scale(0.85);
  top: 50%;
}

/* 正面内容特殊定位 - 重新布局为上下结构 */
.flipcard-flip-box-front .flipcard-inner {
  text-align: center;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 30px 20px;
  transform: none;
  -webkit-transform: none;
  -ms-transform: none;
}

/* 背面内容左对齐 */
.flipcard-flip-box-back .flipcard-inner {
  text-align: left;
}

/* 正面标题定位到上方 */
.flipcard-flip-box-front .flipcard-flip-box-header {
  margin-top: 0;
  margin-bottom: 0;
  flex-shrink: 0;
}

.flipcard-flip-box-img {
  margin-top: 0;
  margin-bottom: 0;
  opacity: 0.8;
  filter: brightness(1.2);
  transition: opacity 0.3s ease, transform 0.3s ease;
  flex-shrink: 0;
  width: 32px;
  height: auto;
  max-width: 32px;
}

/* 箭头悬停效果 */
.flipcard-flip-box:hover .flipcard-flip-box-img {
  opacity: 1;
  transform: translateY(-3px);
}