:root {
  --cert-radius: 12px;
  --cert-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  --cert-hover-shadow: 0 12px 32px rgba(0, 0, 0, 0.09);
  --cert-transition: all 0.35s ease;
}

.bobo-cert-list {
  padding: clamp(30px, 4.166667vw, 80px) 0;
  background: #fafbfc;
}

/* 标题区域美化 */
.bobo-cert-list .index-tit {
  text-align: center;
}
.bobo-cert-list .index-tit h2 {
  font-size: clamp(24px, 1.88vw, 36px);
  line-height: 1.2;
  font-weight: 700;
  color: #222;
  position: relative;
  padding-bottom: 16px;
  margin-bottom: 10px;
  letter-spacing: 0;
}
.bobo-cert-list .index-tit h2::after {
  content: "";
  width: 50px;
  height: 3px;
  background: var(--color-primary);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  border-radius: 2px;
}

/* 轮播主体 */
.bobo-cert-list .list {
  margin: 45px 0 0;
  position: relative;
}
.bobo-cert-list .swiper {
  padding: 15px 0;
}

/* 证书卡片核心美化 */
.bobo-cert-list .swiper-slide {
  width: 378px;
  padding: 20px;
  background: #fff;
  border-radius: var(--cert-radius);
  box-sizing: border-box;
  box-shadow: var(--cert-shadow);
  transition: var(--cert-transition);
}
.bobo-cert-list .swiper-slide img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
}

/* 悬浮高级效果 */
.bobo-cert-list .swiper-slide:hover {
  transform: translateY(-6px);
  box-shadow: var(--cert-hover-shadow);
}

/* 左右箭头美化 */
.bobo-cert-list .swiper-button-prev,
.bobo-cert-list .swiper-button-next {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary);
  margin-top: -23px;
  text-align: center;
  color: #fff;
  transition: var(--cert-transition);
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}
.bobo-cert-list .swiper-button-prev i,
.bobo-cert-list .swiper-button-next i {
  color: inherit;
  font-size: 20px;
  line-height: 46px;
}
.bobo-cert-list .swiper-button-prev {
  left: -70px;
}
.bobo-cert-list .swiper-button-next {
  right: -70px;
}
.bobo-cert-list .swiper-button-prev::after,
.bobo-cert-list .swiper-button-next::after {
  display: none;
}
.bobo-cert-list .swiper-button-prev:hover,
.bobo-cert-list .swiper-button-next:hover {
  background: #222;
  transform: scale(1.08);
}

/* 分页器美化 */
.bobo-cert-list .swiper-pagination {
  position: static;
  width: 100%;
  margin-top: 30px;
  display: none;
}
.bobo-cert-list .swiper-pagination-bullet {
  height: 10px;
  width: 10px;
  margin: 0 8px;
  background: #ddd;
  border-radius: 50%;
  opacity: 1;
  transition: var(--cert-transition);
}
.bobo-cert-list .swiper-pagination-bullet-active {
  background: var(--color-primary);
  transform: scale(1.1);
}

/* =======================================
   响应式优化
======================================= */
@media screen and (max-width: 1500px) {
  .bobo-cert-list .swiper-button-prev,
  .bobo-cert-list .swiper-button-next {
    width: 40px;
    height: 40px;
    margin-top: -20px;
  }
  .bobo-cert-list .swiper-button-prev i,
  .bobo-cert-list .swiper-button-next i {
    font-size: 20px;
    line-height: 40px;
  }
  .bobo-cert-list .swiper-button-prev { left: -55px; }
  .bobo-cert-list .swiper-button-next { right: -55px; }
}

@media screen and (max-width: 1280px) {

  .bobo-cert-list .swiper-slide {
    width: 330px;
    padding: 15px;
  }
  .bobo-cert-list .swiper-button-prev { left: 0; }
  .bobo-cert-list .swiper-button-next { right: 0; }
}

@media screen and (max-width: 991px) {

  .bobo-cert-list .list {
    margin: 30px -10px 0;
  }
  .bobo-cert-list .swiper {
    padding: 10px;
  }
  .bobo-cert-list .swiper-slide {
    width: 300px;
    padding: 12px;
  }
  .bobo-cert-list .swiper-button-prev,
  .bobo-cert-list .swiper-button-next {
    display: none;
  }
  .bobo-cert-list .swiper-pagination {
    display: block;
  }
}