/* 相关产品通栏：仅作用于 .related-products，避免影响全站 */
.related-products {
  clear: both;
  width: 100%;
  box-sizing: border-box;
  margin: 30px 0 20px;
  padding: 10px 0 20px;
  position: relative;
  --rp-arrow-color: #d22e2e;
  --rp-radius: 2.5px;
  --rp-arrow-slot: 40px;
}
.related-products .h1_title {
  text-align: center;
  margin-bottom: 18px;
}
.related-products .h1_title span {
  color: #1a5fb4;
  font-weight: 700;
}

/* 左箭头 | 产品区(裁切) | 右箭头 —— 箭头槽内永不叠产品图边 */
.related-products-track {
  display: flex;
  align-items: center;
  width: 100%;
  box-sizing: border-box;
  gap: 0;
}
.related-products-swiper {
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
  position: relative;
  padding: 0;
  margin: 0;
  overflow: hidden;
  box-sizing: border-box;
}
.related-products .swiper-slide {
  height: auto;
  box-sizing: border-box;
}
.related-products .rp-card {
  display: block;
  text-decoration: none;
  color: #222;
  border: 1px solid #dcdcdc;
  background: #fff;
  border-radius: var(--rp-radius);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.related-products .rp-card:hover {
  border-color: var(--rp-arrow-color);
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
}
.related-products .rp-thumb {
  position: relative;
  aspect-ratio: 1 / 1;
  background: #f5f5f5;
  overflow: hidden;
  border-radius: var(--rp-radius) var(--rp-radius) 0 0;
}
.related-products .rp-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.related-products .rp-title {
  padding: 10px 8px 12px;
  text-align: center;
  box-sizing: border-box;
}
/* 标题行数：占位高度固定为设定行数（短标题也撑满），多出文字裁切不显示 */
.related-products .rp-title-text {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.4;
  word-break: break-all;
  overflow-wrap: anywhere;
  box-sizing: border-box;
}
.related-products.rp-tl-1 .rp-title-text,
.related-products:not([class*="rp-tl-"]) .rp-title-text {
  display: block;
  white-space: nowrap;
  text-overflow: ellipsis;
  height: 1.4em;
  min-height: 1.4em;
  max-height: 1.4em;
}
.related-products.rp-tl-2 .rp-title-text {
  -webkit-line-clamp: 2;
  line-clamp: 2;
  height: 2.8em;
  min-height: 2.8em;
  max-height: 2.8em;
}
.related-products.rp-tl-3 .rp-title-text {
  -webkit-line-clamp: 3;
  line-clamp: 3;
  height: 4.2em;
  min-height: 4.2em;
  max-height: 4.2em;
}
.related-products.rp-tl-4 .rp-title-text {
  -webkit-line-clamp: 4;
  line-clamp: 4;
  height: 5.6em;
  min-height: 5.6em;
  max-height: 5.6em;
}
.related-products.rp-tl-5 .rp-title-text {
  -webkit-line-clamp: 5;
  line-clamp: 5;
  height: 7em;
  min-height: 7em;
  max-height: 7em;
}

/* —— 侧边箭头：独立槽位，不压在产品图上 —— */
.related-products .swiper-button-prev,
.related-products .swiper-button-next {
  position: static;
  flex: 0 0 var(--rp-arrow-slot);
  width: var(--rp-arrow-slot);
  height: 40px;
  margin: 0;
  top: auto;
  left: auto;
  right: auto;
  background: none;
  outline: none;
  cursor: pointer;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.related-products .swiper-button-prev:before,
.related-products .swiper-button-next:before {
  content: none;
}
.related-products .swiper-button-prev:after,
.related-products .swiper-button-next:after {
  content: '';
  display: block;
  box-sizing: border-box;
  width: 12px;
  height: 12px;
  margin: 0;
  border-style: solid;
  border-color: var(--rp-arrow-color);
  border-width: 0 0 2.5px 2.5px;
  background: none;
  box-shadow: none;
}
.related-products .swiper-button-prev:after { transform: rotate(45deg); }
.related-products .swiper-button-next:after { transform: rotate(-135deg); }
.related-products .swiper-button-disabled { opacity: 0.35; cursor: default; }

/* caret 粗尖角 */
.related-products.rp-arrow-caret .swiper-button-prev:after,
.related-products.rp-arrow-caret .swiper-button-next:after {
  width: 14px;
  height: 14px;
  border-width: 0 0 4px 4px;
}

/* solid 实心三角 */
.related-products.rp-arrow-solid .swiper-button-prev:after,
.related-products.rp-arrow-solid .swiper-button-next:after {
  width: 0;
  height: 0;
  border-color: transparent;
  transform: none;
}
.related-products.rp-arrow-solid .swiper-button-prev:after {
  border-width: 8px 12px 8px 0;
  border-color: transparent var(--rp-arrow-color) transparent transparent;
}
.related-products.rp-arrow-solid .swiper-button-next:after {
  border-width: 8px 0 8px 12px;
  border-color: transparent transparent transparent var(--rp-arrow-color);
}

/* double 实心折角（与截图一致） */
.related-products.rp-arrow-double .swiper-button-prev:after,
.related-products.rp-arrow-double .swiper-button-next:after {
  width: 14px;
  height: 24px;
  border: 0;
  box-shadow: none;
  transform: none;
  background: var(--rp-arrow-color);
}
.related-products.rp-arrow-double .swiper-button-prev:after {
  -webkit-clip-path: polygon(100% 0%, 0% 50%, 100% 100%, 58% 50%);
  clip-path: polygon(100% 0%, 0% 50%, 100% 100%, 58% 50%);
}
.related-products.rp-arrow-double .swiper-button-next:after {
  -webkit-clip-path: polygon(0% 0%, 100% 50%, 0% 100%, 42% 50%);
  clip-path: polygon(0% 0%, 100% 50%, 0% 100%, 42% 50%);
}

/* circle 圆形线框 */
.related-products.rp-arrow-circle .swiper-button-prev,
.related-products.rp-arrow-circle .swiper-button-next { position: relative; }
.related-products.rp-arrow-circle .swiper-button-prev:after,
.related-products.rp-arrow-circle .swiper-button-next:after {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--rp-arrow-color);
  background: #fff;
  transform: none;
}
.related-products.rp-arrow-circle .swiper-button-prev:before,
.related-products.rp-arrow-circle .swiper-button-next:before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  border: 0 solid var(--rp-arrow-color);
  border-width: 0 0 2px 2px;
  z-index: 1;
}
.related-products.rp-arrow-circle .swiper-button-prev:before { transform: translateX(1px) rotate(45deg); }
.related-products.rp-arrow-circle .swiper-button-next:before { transform: translateX(-1px) rotate(-135deg); }

/* roundfill 圆形实心 */
.related-products.rp-arrow-roundfill .swiper-button-prev,
.related-products.rp-arrow-roundfill .swiper-button-next { position: relative; }
.related-products.rp-arrow-roundfill .swiper-button-prev:after,
.related-products.rp-arrow-roundfill .swiper-button-next:after {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 0;
  background: var(--rp-arrow-color);
  transform: none;
}
.related-products.rp-arrow-roundfill .swiper-button-prev:before,
.related-products.rp-arrow-roundfill .swiper-button-next:before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  border: 0 solid #fff;
  border-width: 0 0 2px 2px;
  z-index: 1;
}
.related-products.rp-arrow-roundfill .swiper-button-prev:before { transform: translateX(1px) rotate(45deg); }
.related-products.rp-arrow-roundfill .swiper-button-next:before { transform: translateX(-1px) rotate(-135deg); }

/* square 方框尖角 */
.related-products.rp-arrow-square .swiper-button-prev,
.related-products.rp-arrow-square .swiper-button-next { position: relative; }
.related-products.rp-arrow-square .swiper-button-prev:after,
.related-products.rp-arrow-square .swiper-button-next:after {
  width: 28px;
  height: 28px;
  border: 1px solid var(--rp-arrow-color);
  background: #fff;
  border-radius: 2px;
  transform: none;
}
.related-products.rp-arrow-square .swiper-button-prev:before,
.related-products.rp-arrow-square .swiper-button-next:before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  border: 0 solid var(--rp-arrow-color);
  border-width: 0 0 2px 2px;
  z-index: 1;
}
.related-products.rp-arrow-square .swiper-button-prev:before { transform: translateX(1px) rotate(45deg); }
.related-products.rp-arrow-square .swiper-button-next:before { transform: translateX(-1px) rotate(-135deg); }

/* bar 条形按钮 */
.related-products.rp-arrow-bar .swiper-button-prev,
.related-products.rp-arrow-bar .swiper-button-next { position: relative; }
.related-products.rp-arrow-bar .swiper-button-prev:after,
.related-products.rp-arrow-bar .swiper-button-next:after {
  width: 22px;
  height: 36px;
  border: 0;
  background: var(--rp-arrow-color);
  border-radius: 2px;
  transform: none;
}
.related-products.rp-arrow-bar .swiper-button-prev:before,
.related-products.rp-arrow-bar .swiper-button-next:before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  border: 0 solid #fff;
  border-width: 0 0 2px 2px;
  z-index: 1;
}
.related-products.rp-arrow-bar .swiper-button-prev:before { transform: translateX(1px) rotate(45deg); }
.related-products.rp-arrow-bar .swiper-button-next:before { transform: translateX(-1px) rotate(-135deg); }

@media (max-width: 768px) {
  .related-products {
    --rp-arrow-slot: 32px;
  }
  .related-products .rp-title {
    font-size: 12px;
  }
}