:root {
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray: #454545;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--color-white);
  color: var(--color-gray);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.6;
}

@media (min-width: 1200px) {

  .container,
  .container-lg,
  .container-md,
  .container-sm,
  .container-xl {
    max-width: calc(100% - 140px);
  }
}

a,
a:hover {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sptb {
  padding: 120px 0;
}

.spt {
  padding-top: 120px;
}

.spb {
  padding-bottom: 120px;
}

.bg-black {
  background-color: var(--color-black) !important;
}

.bg-white {
  background-color: var(--color-white) !important;
}

.text-darkgray {
  color: var(--color-gray);
}

/* ============================================================
   板块1: 吸顶导航 (navbar-custom)
   默认透明，滚动后添加 .scrolled 显示白色背景
   ============================================================ */
.navbar-custom {
  width: 100%;
  z-index: 1050;
  padding: 12px;
  height: 68px;
  height: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.3s ease;
  border-bottom: none;
}

.page-home .navbar-custom {
  position: fixed;
  top: 0;
  left: 0;
}

.navbar-custom.scrolled {
  position: fixed;
  top: 0;
  left: 0;
  background: var(--color-white);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.navbar-custom .nav-left,
.navbar-custom .nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.navbar-custom .nav-btn {
  background: transparent;
  border: none;
  font-size: 1.3rem;
  color: var(--color-black);
  padding: 3px 0;
  cursor: pointer;
  transition: color 0.2s;
  letter-spacing: 0.5px;
}

.page-home .navbar-custom .nav-btn {
  color: var(--color-white);
}

.navbar-custom.scrolled .nav-btn {
  color: var(--color-black);
}

.navbar-custom.scrolled .nav-btn:hover {
  color: var(--color-gray);
}

.navbar-custom .logo-wrapper img {
  max-height: 34px;
  width: auto;
  display: block;
  filter: brightness(0) invert(0);
  transition: filter 0.3s;
}

.page-home .navbar-custom .logo-wrapper img {
  filter: brightness(0) invert(1);
}

.navbar-custom.scrolled .logo-wrapper img {
  filter: brightness(0) invert(0);
}

/* ============================================================
   板块2: 左侧菜单面板
   ============================================================ */
.menu-panel-left {
  position: fixed;
  top: 0;
  left: 0;
  width: 340px;
  max-width: 80vw;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: 2px 0 24px rgba(0, 0, 0, 0.03);
  transform: translateX(-110%);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1060;
  padding: 2.5rem 2rem;
  overflow-y: auto;
}

.menu-panel-left.open {
  transform: translateX(0);
}

.menu-panel-left .close-btn {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--color-black);
  float: right;
  margin-bottom: 2rem;
  cursor: pointer;
}

.menu-panel-left .menu-title {
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-gray);
  border-bottom: 1px solid #f0f0f0;
  padding-bottom: 1rem;
  margin-bottom: 1.8rem;
}

.menu-panel-left .nav-level-1 {
  list-style: none;
  padding-left: 0;
}

.menu-panel-left .nav-level-1>li {
  padding: 0.6rem 0;
  font-weight: 450;
  color: var(--color-black);
  border-bottom: 1px solid #f5f5f5;
}

/* 一级菜单：flex布局，名称和箭头两端对齐 */
.menu-panel-left .nav-level-1>li>a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-black);
  font-weight: 450;
  width: 100%;
}

/* 一级菜单的箭头 */
.menu-panel-left .nav-level-1>li>a .arrow-toggle {
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--color-gray);
  transition: transform 0.25s ease;
  padding: 4px 6px;
  flex-shrink: 0;
  user-select: none;
  line-height: 1;
  /* margin-left: 12px; */
}

.menu-panel-left .nav-level-1>li>a .arrow-toggle.open {
  transform: rotate(180deg);
}

.menu-panel-left .nav-level-1>li>a .arrow-toggle:hover {
  color: var(--color-black);
}

/* 一级菜单的名称 */
.menu-panel-left .nav-level-1>li>a .menu-label {
  flex: 1;
  color: var(--color-black);
  font-weight: 450;
  cursor: pointer;
}

.menu-panel-left .nav-level-1>li>a .menu-label:hover {
  color: var(--color-gray);
}

/* 二级菜单 */
.menu-panel-left .nav-level-2 {
  list-style: none;
  padding-left: 1.2rem;
  margin-top: 0.3rem;
  font-weight: 350;
  color: var(--color-gray);
}

.menu-panel-left .nav-level-2>li {
  padding: 0.3rem 0;
}

/* 二级菜单：flex布局，名称和箭头两端对齐 */
.menu-panel-left .nav-level-2>li>a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-gray);
  font-weight: 350;
  width: 100%;
}

.menu-panel-left .nav-level-2>li>a .arrow-toggle {
  cursor: pointer;
  /* font-size: 0.7rem;
  color: var(--color-gray);
  transition: transform 0.25s ease;
  padding: 2px 4px; */
  font-size: 0.8rem;
  color: var(--color-gray);
  transition: transform 0.25s ease;
  padding: 4px 6px;
  flex-shrink: 0;
  user-select: none;
  line-height: 1;
  /* margin-left: 8px; */
}

.menu-panel-left .nav-level-2>li>a .arrow-toggle.open {
  transform: rotate(180deg);
}

.menu-panel-left .nav-level-2>li>a .arrow-toggle:hover {
  color: var(--color-black);
}

.menu-panel-left .nav-level-2>li>a .menu-label {
  flex: 1;
  color: var(--color-gray);
  font-weight: 350;
  cursor: pointer;
}

.menu-panel-left .nav-level-2>li>a .menu-label:hover {
  color: var(--color-black);
}

/* 三级菜单 */
.menu-panel-left .nav-level-3 {
  list-style: none;
  padding-left: 1.2rem;
  font-weight: 300;
  color: var(--color-gray);
  font-size: 0.9rem;
}

.menu-panel-left .nav-level-3 li {
  padding: 0.25rem 0;
}

.menu-panel-left .nav-level-3 li a {
  color: var(--color-gray);
  cursor: pointer;
}

.menu-panel-left .nav-level-3 li a:hover {
  color: var(--color-black);
}

.menu-panel-left .collapse {
  transition: height 0.3s ease;
}

@media (max-width: 767.98px) {
  .menu-panel-left {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    padding: 2rem 1.8rem;
  }
}

/* ============================================================
   板块3: 右侧搜索面板 (search-panel-right)
   整屏高度，非整屏宽度(桌面)，移动端整屏宽高
   ============================================================ */
.search-panel-right {
  position: fixed;
  top: 0;
  right: 0;
  width: 380px;
  max-width: 82vw;
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: -2px 0 20px rgba(0, 0, 0, 0.02);
  transform: translateX(110%);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1060;
  padding: 2.5rem 2rem;
  overflow-y: auto;
}

.search-panel-right.open {
  transform: translateX(0);
}

.search-panel-right .close-btn {
  background: transparent;
  border: none;
  font-size: 1.6rem;
  color: var(--color-black);
  float: right;
  cursor: pointer;
}

.search-panel-right .search-title {
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 1px;
  color: var(--color-black);
  margin-top: 2rem;
  margin-bottom: 1.5rem;
}

.search-panel-right .search-input-group {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-black);
  padding-bottom: 0.5rem;
  margin-bottom: 2.2rem;
}

.search-panel-right .search-input-group input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  font-size: 1rem;
  padding: 0.5rem 0;
  color: var(--color-gray);
}

.search-panel-right .search-input-group i {
  color: var(--color-black);
  font-size: 1rem;
  margin-right: 0.8rem;
}

.search-panel-right .hot-search-label {
  font-weight: 350;
  color: var(--color-gray);
  margin-bottom: 0.8rem;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.search-panel-right .hot-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.search-panel-right .hot-tags span {
  background: #f5f5f5;
  padding: 0.2rem 1.2rem;
  border-radius: 40px;
  font-size: 0.85rem;
  color: var(--color-gray);
  cursor: default;
}

@media (max-width: 767.98px) {
  .search-panel-right {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    padding: 2rem 1.8rem;
  }
}


/* ============================================================
   遮罩层 (overlay)
   ============================================================ */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1055;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  pointer-events: none;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}


/* ============================================================
   板块4: Hero 全屏大图
   ============================================================ */
.hero-fullscreen {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-color: var(--color-black);
}

.hero-fullscreen-link {
  position: absolute;
  width: 100%;
  height: 100vh;
  top: 0;
  left: 0;
}

.hero-fullscreen .hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

@media (max-width: 767.98px) {
  .hero-fullscreen {
    height: 100vh;
  }
}

.floating-menu {
  position: absolute;
  bottom: 50px;
  left: 36px;
  z-index: 20;
  overflow: hidden;
  pointer-events: none;
  display: inline-block;
  /* position: relative;
  z-index: 1;
  width: auto; */
}

.menu-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  will-change: transform;
}

.floating-menu .menu-item {
  pointer-events: auto;
  color: var(--color-white);
  font-size: 32px;
  font-weight: 600;
  cursor: default;
  border-bottom: none;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  white-space: nowrap;
  line-height: 40px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

@media (max-width: 767.98px) {
  .floating-menu {
    bottom: 40px;
    left: 24px;
  }

  .menu-inner {
    gap: 12px;
  }

  .floating-menu .menu-item {
    font-size: 28px;
  }
}

/*页面滚动锁定类*/
body.scroll-lock {
  overflow: hidden;
}















.section-cate-swiper {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  /* position: relative; */
}

.section-cate-swiper .swiper-container {
  width: 100%;
  height: 100%;
  position: relative;
}

/* 移除 !important，让 Swiper 的 breakpoints 控制宽度 */
.section-cate-swiper .swiper-slide {
  height: 100%;
  flex-shrink: 0;
}

.section-cate-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 移动端轮播分页器 */
.section-cate-swiper .swiper-pagination {
  display: none;
  bottom: 30px;
}

.section-cate-swiper .swiper-pagination .swiper-pagination-bullet {
  background: rgba(255, 255, 255, 0.6);
  opacity: 1;
}

.section-cate-swiper .swiper-pagination .swiper-pagination-bullet-active {
  background: #ffffff;
}

/* 移动端样式 - 不需要再设置 width: 100%，Swiper 自动控制 */
@media (max-width: 767.98px) {
  .section-cate-swiper .swiper-pagination {
    display: block;
  }
}




.section-cate {
  width: 100%;
  overflow-x: hidden;
  /* height: 100vh; */
  position: relative;
}

.cate-img-wrap {
  width: 100%;
  height: 100vh;
  /* position: absolute;
  top: 0;
  left: 0; */
}

.cate-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cate-wrap {
  display: block;
  position: relative;
  height: 100vh;
  overflow:auto;
}

.cate-desc-wrap {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  display: flex;
  justify-content: flex-start;
  align-items: flex-end;
  width: 100%;
  height: 100%;
  padding: 20px;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-black);
}

.cate-desc-name {
  display: inline;
  position: sticky;
  bottom: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-black);
  margin-bottom: 0;
}











.section-index-five {
  background-color: var(--color-black);
}

.section-index-five .container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.section-index-five .row {
  width: 100%;
}

.section-index-five .text-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 80px;
  text-align: center;
}

.section-index-five .text-list a {
  color: var(--color-white);
  font-size: 32px;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
}

@media (max-width: 767.98px) {
  .section-index-five .text-list {
    gap: 60px;
  }

  .section-index-five .text-list a {
    font-size: 26px;
  }
}

.section-index-six .text-content {
  border: solid 1px var(--color-gray);
  border-left: none;
  border-right: none;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 82px;
  color: var(--color-white);
}

@media (max-width: 991px) {
  .section-index-six .text-content {
    padding: 50px 12px;
  }
}










/* =============================== ===============================*/
.section-features {
  padding: 80px 0;
}

.section-features .feature-card {
  /* padding: 40px 30px; */
  transition: transform 0.3s ease;
}

.section-features .feature-card:hover {
  transform: translateY(-4px);
}

.section-features .feature-icon {
  font-size: 36px;
  color: var(--color-white);
  margin-bottom: 20px;
}

.section-features .feature-icon i {
  display: inline-block;
}

.section-features .feature-icon span {
  display: inline-block;
  width: 32px;
  height: 32px;
}

.section-features .feature-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.section-features .feature-desc {
  font-size: 14px;
  color: var(--color-white);
  line-height: 1.6;
  margin-bottom: 16px;
  /* max-width: 320px; */
}

.section-features .feature-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-white);
  text-decoration: none;
  /* border-bottom: 1px solid var(--color-white); */
  /* padding-bottom: 2px; */
  transition: opacity 0.3s ease;
}

.section-features .feature-link:hover {
  opacity: 0.6;
}

@media (max-width: 767.98px) {
  .section-features {
    padding: 50px 0;
  }

  .section-features .feature-card {
    /* padding: 30px 20px; */
  }

  .section-features .feature-title {
    font-size: 16px;
  }
}


/* =============================== =============================== */
.section-cta {
  padding: 80px 0;
  border-top: solid 1px var(--color-gray);
  border-bottom: solid 1px var(--color-gray);
}

.section-cta .cta-title {
  color: var(--color-white);
  font-size: 28px;
  margin: 0;
}

.section-cta .btn-cta {
  display: inline-block;
  background-color: var(--color-white);
  color: var(--color-black);
  padding: 14px 48px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 1px;
  text-decoration: none;
  text-transform: uppercase;
  transition: all 0.3s ease;
  border: 1px solid var(--color-white);
}

.section-cta .btn-cta:hover {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

@media (max-width: 767.98px) {
  .section-cta {
    padding: 50px 0;
  }

  .section-cta .cta-title {
    font-size: 22px;
    text-align: center;
    margin-bottom: 20px;
  }

  .section-cta .text-lg-end {
    text-align: center !important;
  }

  .section-cta .btn-cta {
    padding: 12px 40px;
    font-size: 14px;
  }
}



/* =============================== 底部 =============================== */
.footer {
  padding: 80px 0 30px;
  color: #ffffff;
}

/* ===== 上层：5个卡片 ===== */
.footer-top {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 30px;
}

.footer-widget {
  width: 100%;
}

.footer-widget-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-widget-list li {
  margin-bottom: 8px;
}

.footer-widget-list li a {
  color: var(--color-white);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-widget-list li a:hover {
  color: var(--color-gray);
}

/* ===== 下层：版权 + 社交 + 隐私 ===== */
.footer-bottom {
  padding-top: 10px;
}

.footer-copyright p {
  color: var(--color-white);
  font-size: 14px;
  margin: 0;
}

.footer-social a {
  display: inline-block;
  color: var(--color-white);
  font-size: 18px;
  margin: 0 10px;
  transition: color 0.3s ease;
}

.footer-social a:hover {
  color: #ffffff;
}

.footer-privacy a {
  color: var(--color-white);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-privacy a:hover {
  color: var(--color-gray);
}

@media (max-width: 767.98px) {
  .footer {
    padding: 50px 0 20px;
  }

  .footer-copyright,
  .footer-social,
  .footer-privacy {
    text-align: center !important;
    margin-bottom: 12px;
  }

  .footer-social a {
    margin: 0 8px;
  }
}



/* ======================== 通用轮播切换按钮样式 ======================== */
.swiper-btn-prev,
.swiper-btn-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  border: none;
  outline: none;
}

.swiper-btn-prev:hover,
.swiper-btn-next:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
}

.swiper-btn-prev i,
.swiper-btn-next i {
  font-size: 16px;
  color: var(--color-gray);
  transition: color 0.3s ease;
}

.swiper-btn-prev:hover i,
.swiper-btn-next:hover i {
  color: var(--color-black);
}

.swiper-btn-prev {
  left: 16px;
}

.swiper-btn-next {
  right: 16px;
}

/* 鼠标悬停时显示按钮 */
.swiper-container:hover~.swiper-btn-prev,
.swiper-container:hover~.swiper-btn-next,
.sub-nav-wrapper:hover .swiper-btn-prev,
.sub-nav-wrapper:hover .swiper-btn-next {
  opacity: 1;
  visibility: visible;
}

/* 按钮禁用状态 */
.swiper-btn-prev.swiper-button-disabled,
.swiper-btn-next.swiper-button-disabled {
  opacity: 0 !important;
  visibility: hidden !important;
  cursor: default;
}




/* ======================== 子分类 ======================== */
.section-sub-nav {
  padding: 20px 0;
  background-color: var(--color-white);
}

.sub-nav-wrapper {
  position: relative;
  padding: 0 4px;
}

.sub-nav-swiper {
  overflow: hidden;
  padding: 4px 0;
}

.sub-nav-card {
  display: flex;
  flex-direction: column;
  /* align-items: center; */
  text-decoration: none;
  color: var(--color-black);
  transition: transform 0.3s ease;
  padding: 0 8px;
}

.sub-nav-card:hover {
  transform: translateY(-4px);
}

.sub-nav-image {
  width: 100%;
  overflow: hidden;
  background-color: #f5f5f5;
  margin-bottom: 12px;
}

.sub-nav-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 5 / 6;
  object-fit: cover;
  display: block;
  border-radius: 5px;
}

.sub-nav-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-black);
  /* text-align: center; */
}

@media (max-width: 767.98px) {
  .sub-nav-wrapper {
    padding: 0 12px;
  }

  .swiper-btn-prev,
  .swiper-btn-next {
    width: 36px;
    height: 36px;
  }

  .swiper-btn-prev i,
  .swiper-btn-next i {
    font-size: 13px;
  }

  .swiper-btn-prev {
    left: 8px;
  }

  .swiper-btn-next {
    right: 8px;
  }
}


.column-name,
.column-desc {
  color: var(--color-black);
}


/* 产品卡片 */
.prod-card {
  display: flex;
  flex-direction: column;
  color: var(--color-gray);
}

.prod-card-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.prod-card-title a {
  font-size: 18px;
}

.page-content,
.page-content p {
  color: var(--color-gray);
  line-height: 1.5;
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
  color: var(--color-gray);
  line-height: 1.5;
  margin-bottom: 10px;
}

.page-content strong {
  display: inline-block;
  font-weight: 500;
  margin-bottom: 6px;
}





/* ============================================================
  板块: 单品详情页 (section-single-product)
  ============================================================ */
.section-single-product {
  background-color: var(--color-white);
}

/* ===== 产品缩略图 ===== */
.product-thumb {
  width: 100%;
  height: auto;
  overflow: hidden;
  background-color: #f5f5f5;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== 产品信息 ===== */
.product-info {
  padding: 60px 50px 40px;
  height: calc(100vh - 62px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
}

.product-info.sticky {
  position: sticky;
  top: 62px;
}

@media (max-width: 991.98px) {
  .product-info {
    height: auto;
  }
}

.product-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.product-desc {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.5;
  margin-bottom: 24px;
}

/* ===== 产品选项：颜色缩略图（图片形式） ===== */
.product-options {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.option-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-black);
}

.option-colors {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.color-swatch {
  width: 75px;
  height: 75px;
  border-radius: 5px;
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color 0.3s ease, transform 0.3s ease;
  display: block;
  cursor: pointer;
  flex-shrink: 0;
}

.color-swatch img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.color-swatch:hover {
  /* transform: scale(1.05); */
  border-color: var(--color-gray);
}

.color-swatch.active {
  border-color: var(--color-black);
  /* transform: scale(1.05); */
}

/* ===== 两个并排按钮 ===== */
.product-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}

.btn-action {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--color-black);
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-action i {
  font-size: 16px;
}

/* Contact: 无背景色，带边框（第一个） */
.btn-contact {
  background-color: transparent;
  color: var(--color-black);
}

.btn-contact:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Call: 黑色背景（第二个） */
.btn-phone {
  background-color: var(--color-black);
  color: var(--color-white);
}

.btn-phone:hover {
  background-color: transparent;
  color: var(--color-black);
}

/* ===== 手风琴 ===== */
.product-accordion {
  border-top: 1px solid #eaeaea;
}

.accordion-item {
  border-bottom: 1px solid #eaeaea;
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-black);
  user-select: none;
  transition: color 0.3s ease;
}

.accordion-header:hover {
  color: var(--color-gray);
}

.accordion-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.accordion-icon i {
  font-size: 16px;
  color: var(--color-gray);
  transition: opacity 0.3s ease;
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 0;
}

.accordion-body.active {
  max-height: 400px;
  padding: 0 0 20px;
}

.accordion-body p {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  margin-bottom: 10px;
}

.accordion-body ul {
  padding-left: 20px;
  margin: 0;
}

.accordion-body ul li {
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.8;
}

/* ===== 产品详情内容 ===== */
.product-content {
  padding: 50px 12px;
  border-top: 1px solid #eaeaea;
}

.product-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 16px;
}

.product-content p {
  font-size: 15px;
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 14px;
  margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1199.98px) {
  .product-info {
    padding: 40px 30px 30px;
  }
}

@media (max-width: 991.98px) {
  .product-info {
    padding: 30px 12px;
    max-height: none;
    overflow-y: visible;
  }

  .product-content {
    padding: 30px 12px;
  }
}

@media (max-width: 767.98px) {
  .product-actions {
    flex-direction: column;
  }

  .btn-action {
    padding: 12px 20px;
  }

  .product-content h3 {
    font-size: 18px;
  }
}




/* ============================================================
   板块: 相关推荐 (section-related-product)
   ============================================================ */
.section-related-product {
  padding: 60px 0 80px;
  background-color: var(--color-white);
}

/* ===== 标题 ===== */
.related-header {
  /* text-align: center; */
  margin-bottom: 40px;
}

.related-title {
  font-size: 28px;
  font-weight: 500;
  color: var(--color-black);
  margin: 0;
}

/* ===== 轮播容器 ===== */
.related-wrapper {
  position: relative;
}

.related-swiper {
  overflow: hidden;
  padding: 4px 0;
}

.related-swiper .swiper-slide {
  width: 50%;
  /* 大屏幕显示2个 */
  flex-shrink: 0;
}

/* ===== 商品卡片 ===== */
.related-card {
  display: block;
  text-decoration: none;
  color: var(--color-black);
  /* padding: 0 12px; */
  transition: transform 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
}

.related-image {
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background-color: #f5f5f5;
  border-radius: 8px;
  margin-bottom: 14px;
}

.related-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.related-card:hover .related-image img {
  transform: scale(1.02);
}

.related-name {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-black);
  margin: 0 0 4px 0;
  letter-spacing: 0.3px;
}

.related-desc {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
  line-height: 1.5;
}

/* ===== 通用导航按钮（复用） ===== */
.related-wrapper .swiper-btn-prev,
.related-wrapper .swiper-btn-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-white);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
  border: none;
  outline: none;
}

.related-wrapper .swiper-btn-prev:hover,
.related-wrapper .swiper-btn-next:hover {
  transform: translateY(-50%) scale(1.05);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
}

.related-wrapper .swiper-btn-prev i,
.related-wrapper .swiper-btn-next i {
  font-size: 16px;
  color: var(--color-gray);
  transition: color 0.3s ease;
}

.related-wrapper .swiper-btn-prev:hover i,
.related-wrapper .swiper-btn-next:hover i {
  color: var(--color-black);
}

.related-wrapper .swiper-btn-prev {
  left: -8px;
}

.related-wrapper .swiper-btn-next {
  right: -8px;
}

.related-wrapper:hover .swiper-btn-prev,
.related-wrapper:hover .swiper-btn-next {
  opacity: 1;
  visibility: visible;
}

.related-wrapper .swiper-btn-prev.swiper-button-disabled,
.related-wrapper .swiper-btn-next.swiper-button-disabled {
  opacity: 0 !important;
  visibility: hidden !important;
  cursor: default;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .section-related-product {
    padding: 40px 0 60px;
  }

  .related-title {
    font-size: 24px;
  }

  .related-wrapper .swiper-btn-prev,
  .related-wrapper .swiper-btn-next {
    width: 38px;
    height: 38px;
  }

  .related-wrapper .swiper-btn-prev i,
  .related-wrapper .swiper-btn-next i {
    font-size: 14px;
  }
}

@media (max-width: 767.98px) {
  .section-related-product {
    padding: 30px 0 40px;
  }

  .related-header {
    margin-bottom: 28px;
  }

  .related-title {
    font-size: 20px;
  }

  .related-swiper .swiper-slide {
    width: 100%;
    /* 手机端显示1个 */
  }

  .related-wrapper .swiper-btn-prev,
  .related-wrapper .swiper-btn-next {
    width: 34px;
    height: 34px;
  }

  .related-wrapper .swiper-btn-prev i,
  .related-wrapper .swiper-btn-next i {
    font-size: 13px;
  }

  .related-wrapper .swiper-btn-prev {
    left: 4px;
  }

  .related-wrapper .swiper-btn-next {
    right: 4px;
  }

  .related-name {
    font-size: 15px;
  }

  .related-desc {
    font-size: 14px;
  }
}








/* ============================================================
   板块: 单页内容 (section-single-page)
   ============================================================ */
.section-single-page {
  /* padding-top: 68px; */
  padding-top: 20px;
}

/* ===== 左侧：子菜单 ===== */
.page-sub-menu {
  padding: 40px 0 30px 40px;
  /* border-right: 1px solid #eaeaea; */
  /* position: sticky;
  top: 68px;
  overflow-y: auto; */
}

.page-sub-menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-sub-menu-item {
  margin-bottom: 2px;
}

.page-sub-menu-item a {
  display: block;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 400;
  color: var(--color-gray);
  text-decoration: none;
  transition: color 0.25s ease;
  letter-spacing: 0.3px;
}

.page-sub-menu-item a:hover {
  color: var(--color-black);
}

.page-sub-menu-item.active a {
  color: var(--color-black);
  font-weight: 500;
}

/* ===== 右侧：内容区域 ===== */
.page-content {
  /* padding: 40px 0 60px 50px; */
  /* max-width: 820px; */
  width: 100%;
}

.page-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #eaeaea;
}

.page-text {
  font-size: 15px;
  color: var(--color-gray);
  line-height: 1.8;
  margin-bottom: 20px;
}

.page-text:last-of-type {
  margin-bottom: 0;
}

.page-placeholder {
  margin-top: 30px;
  padding: 30px 24px;
  background-color: #f8f8f8;
  border-radius: 8px;
  border: 1px dashed #d0d0d0;
}

.page-placeholder p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 4px;
}

.page-placeholder p:last-child {
  margin-bottom: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  /* .section-single-page {
    padding-top: 60px;
  } */

  .page-sub-menu {
    padding: 0;
    border-right: none;
    /* border-bottom: 1px solid #eaeaea; */
    min-height: auto;
    position: relative;
    top: 0;
    max-height: none;
    overflow-y: visible;
  }

  .page-sub-menu-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
  }

  .page-sub-menu-item {
    margin-bottom: 0;
  }

  .page-sub-menu-item a {
    padding: 4px 0;
    font-size: 14px;
  }

  /* .page-content {
    padding: 30px 20px 40px;
  } */

  .page-title {
    font-size: 25px;
  }
}

@media (max-width: 767.98px) {
  .page-title {
    font-size: 22px;
  }

  .page-text {
    font-size: 14px;
  }

  .page-placeholder {
    padding: 20px 16px;
  }
}