/* ===== 视频点击加载（Bilibili 封面 + 点击嵌入，适配移动端 16:9） ===== */
.video-facade {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  min-height: 0;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
  background: #1a1a1a;
}

.video-facade img,
.video-facade iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-facade img {
  object-fit: cover;
  display: block;
}

.video-facade-play {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 68px;
  height: 48px;
  margin: -24px 0 0 -34px;
  background: rgba(255, 0, 0, 0.9);
  border-radius: 12px;
  pointer-events: none;
}

.video-facade-play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent #fff;
}

.video-facade-play--bilibili {
  width: 64px;
  height: 64px;
  margin: -32px 0 0 -32px;
  background: rgba(251, 114, 153, 0.95);
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.video-facade-play--bilibili::after {
  left: 52%;
  border-width: 11px 0 11px 18px;
}

/* ===== 分享按钮（全站复用） ===== */
.wafu-share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.share-round {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: transform 0.3s ease;
  text-decoration: none;
}

.share-round:hover,
.share-round:focus {
  transform: translateY(-2px);
}

.wafu-share-buttons .social-icon {
  flex-shrink: 0;
}

button.social-icon {
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  appearance: none;
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  /* 默认大屏位置 */
  width: 48px;
  height: 48px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
  cursor: pointer;
  display: none;
  /* 默认隐藏，JS 控制出现 */
  place-items: center;
  z-index: 9999;
  transition: opacity .3s, transform .3s;
}

.back-top:hover {
  transform: scale(1.1);
}

.back-top img {
  width: 24px;
  height: 24px;
}

/* ===== 右下角悬浮客服 ===== */
.float-kefu {
  position: fixed;
  right: 20px;
  bottom: 220px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  /* 关键：不让它撑开页面 */
  max-width: 48px;
  /* 只等于一个按钮宽 */
  overflow: visible;
  pointer-events: none;
  /* 防止内部元素意外撑开 */
}

.float-kefu>* {
  pointer-events: auto;
  /* 按钮本身可点 */
}

.kefu-item {
  position: relative;
  width: 48px;
  height: 48px;
  background: #165DFF;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
  cursor: pointer;
  transition: transform .3s;
}

.kefu-item:hover {
  transform: scale(1.1);
}

.kefu-icon {
  width: 24px;
  height: 24px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* 弹出层公共样式 */
.kefu-popup {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .15);
  padding: 12px 16px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
  font-size: 14px;
  color: #333;
}

.wechat-popup {
  width: 180px;
  text-align: center;
}

.wechat-popup .qr-code {
  width: 140px;
  height: 140px;
  margin: 0 auto 8px;
  display: block;
}

.phone-popup {
  line-height: 1.4;
}

.kefu-item.wechat:hover .wechat-popup,
.kefu-item.phone:hover .phone-popup,
.kefu-item.email:hover .email-popup,
.kefu-item.is-open .kefu-popup {
  opacity: 1;
  visibility: visible;
}

/* 触屏设备不用 :hover 展示弹出层，避免点击后返回页面弹出层/残影卡住 */
@media (hover: none) {
  .kefu-item.wechat:hover .wechat-popup,
  .kefu-item.phone:hover .phone-popup,
  .kefu-item.email:hover .email-popup {
    opacity: 0;
    visibility: hidden;
  }

  .kefu-item.is-open .kefu-popup {
    opacity: 1;
    visibility: visible;
  }
}

.email-popup {
  line-height: 1.4;
  white-space: normal;
}

.float-kefu .kefu-item.wechat {
  background-color: #07C160;
  background-image: url(../icons/icon-wechat.svg);
  background-size: 28px;
  background-position: center;
  background-repeat: no-repeat;
}

.footer {
  border-top: 0.5px solid #ebebeb;
  background: #ffffff;
  color: #f0f6fc;
  padding: 60px 0 20px;
  -webkit-font-smoothing: antialiased;
}

.footer-content {
  width: 90%;
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.footer-col {
  min-width: 0;
}

.footer-col:first-child {
  padding-right: 20px;
}

.footer-title {
  font-size: 22px;
  font-weight: 600;
  color: rgb(0, 0, 0);
  margin-bottom: 16px;
  letter-spacing: .5px;
}

.footer-text {
  font-size: 15px;
  line-height: 1.8;
  color: #4e5154;
  margin-bottom: 20px;
}

.footer-socials {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.social-icon {
  display: block;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #f5f6f7;
  background-size: 24px;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-color .25s;
}


.social-icon:focus-visible {
  outline: 2px solid #0084ff;
  outline-offset: 2px;
}

.social-icon.wechat {
  background-image: url(../icons/icon-wechat-unselect.svg);
}

.social-icon.wechat:hover,
.social-icon.wechat:focus {
  background-color: #07C160;
  background-image: url(../icons/icon-wechat.svg);
}

.social-icon.whatsapp {
  background-image: url(../icons/icon-wechat-unselect.svg);
}

.social-icon.whatsapp:hover,
.social-icon.whatsapp:focus {
  background-color: #07C160;
  background-image: url(../icons/icon-wechat.svg);
}

.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s ease, visibility .25s ease;
}

.wechat-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .55);
}

.wechat-modal-dialog {
  position: relative;
  z-index: 1;
  background: #fff;
  border-radius: 16px;
  padding: 28px 24px 24px;
  max-width: 360px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, .18);
}

.wechat-modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: #f5f6f7;
  color: #666;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .2s;
}

.wechat-modal-close:hover,
.wechat-modal-close:focus {
  background: #ebebeb;
}

.wechat-modal-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: #07C160 url(../icons/icon-wechat.svg) no-repeat center / 28px;
}

.wechat-modal-title {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 700;
  color: #1a1a1a;
}

.wechat-modal-desc {
  margin: 0 0 16px;
  font-size: 14px;
  color: #666;
  line-height: 1.5;
}

.wechat-modal-qr {
  display: block;
  width: 200px;
  height: 200px;
  margin: 0 auto 14px;
  border-radius: 8px;
  object-fit: contain;
}

.wechat-modal-phone {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  color: #1a1a1a;
  letter-spacing: .02em;
}

.wechat-modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.wechat-modal-btn {
  flex: 1 1 120px;
  min-width: 120px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}

.wechat-modal-btn-primary {
  background: #07C160;
  color: #fff;
}

.wechat-modal-btn-primary:hover,
.wechat-modal-btn-primary:focus {
  background: #06ad56;
}

.wechat-modal-btn-secondary {
  background: #fff;
  color: #07C160;
  border: 1px solid #07C160;
}

.wechat-modal-btn-secondary:hover,
.wechat-modal-btn-secondary:focus {
  background: #f0faf4;
}

.wechat-modal-call {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  background: transparent;
  color: #666;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: color .2s;
}

.wechat-modal-call:hover,
.wechat-modal-call:focus {
  color: #07C160;
}

.wechat-modal-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 10060;
  max-width: min(92vw, 360px);
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(26, 26, 26, .92);
  color: #fff;
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 12px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s ease;
  pointer-events: none;
}

.wechat-modal-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

body.wechat-modal-open {
  overflow: hidden;
}

@media (max-width: 480px) {
  .wechat-modal-dialog {
    padding: 24px 18px 20px;
  }

  .wechat-modal-qr {
    width: 180px;
    height: 180px;
  }
}

.social-icon.douyin {
  background-image: url(../icons/icon-douyin.svg);
}

.social-icon.douyin:hover,
.social-icon.douyin:focus {
  background-color: #000000;
  background-image: url(../icons/icon-douyin-select.svg);
}

.social-icon.bilibili {
  background-image: url(../icons/icon-bilibili-unselect.svg);
}

.social-icon.bilibili:hover,
.social-icon.bilibili:focus {
  background-color: #fb7299;
  background-image: url(../icons/icon-bilibili.svg);
}

.social-icon.weibo {
  background-image: url(../icons/icon-weibo-unselect.svg);
}

.social-icon.weibo:hover,
.social-icon.weibo:focus {
  background-color: #e6162d;
  background-image: url(../icons/icon-weibo.svg);
}

.social-icon.xiaohongshu {
  background-image: url(../icons/icon-xiaohongshu-unselect.svg);
}

.social-icon.xiaohongshu:hover,
.social-icon.xiaohongshu:focus {
  background-color: #ff2442;
  background-image: url(../icons/icon-xiaohongshu.svg);
}

.social-icon.zhihu {
  background-image: url(../icons/icon-zhihu-unselect.svg);
}

.social-icon.zhihu:hover,
.social-icon.zhihu:focus {
  background-color: #0084ff;
  background-image: url(../icons/icon-zhihu.svg);
}

/* 中间两列链接 */
.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-list a,
.footer-list a:link,
.footer-list a:visited {
  color: #4e5154;
  font-size: 14px;
  text-decoration: none;
  transition: color .2s;
}

.footer-list a:hover {
  color: rgb(26, 115, 232);
}

/* 右侧联系信息 */
.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
  font-size: 14px;
  color: #4e5154;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  word-break: break-word;
}

.footer-contact-link,
.footer-contact-link:link,
.footer-contact-link:visited {
  color: inherit;
  text-decoration: none;
}

.footer-contact-link:hover {
  color: rgb(26, 115, 232);
}

.footer-icon {
  flex-shrink: 0;
  width: 18px;
  text-align: center;
  color: #58a6ff;
}

/* 分割线保持原样 */
.footer-separator {
  border: none;
  border-top: 1px solid #21262d;
  width: 90%;
  max-width: 1400px;
  margin: 32px auto 16px;
}


.footer-bottom-wrapper {
  margin: 0 auto;
  box-sizing: border-box;
  max-width: 1400px;
  width: 90%;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.footer-bottom {
  width: 1400px;
  font-size: 12px;
  color: #6e7681;
  display: flex;
  flex-direction: row;
  justify-content: space-between;


}

.footer-bottom a {
  color: #6e7681;
  text-decoration: none;
}

.footer-bottom a:hover {
  color: rgb(26, 115, 232);
}

/* 导航栏容器 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, .08);
  z-index: 1000;
}

.nav-container {
  width: 100%;
  /* ✅ 关键：先占满父级 */
  max-width: 1500px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
  padding: 0 20px;
  box-sizing: border-box;
  /* ✅ 防止 padding 把宽度撑爆 */
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
  height: 100%;
}

.nav-logo img {
  width: auto;
  height: auto;
  max-height: 72px;
  max-width: 90px;
  object-fit: contain;
  display: block;
}

/* 汉堡菜单按钮 - 移动端显示 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: #333;
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* 导航列表 - 桌面端样式 */
.nav-list {
  display: flex;
  list-style: none;
  gap: 5px;
  align-items: stretch;
}

.nav-item {
  position: relative;
}

.nav-link {
  cursor: pointer;
  display: block;
  padding: 30px 15px;
  text-decoration: none;
  color: #000;
  font-size: 18px;
  font-weight: 500;
  transition: color .3s;
  white-space: nowrap;
}

.nav-link:hover,
.nav-item:hover>.nav-link {
  color: rgb(26, 115, 232);
}

/* 激活状态颜色 */
.nav-link.active {
  color: rgb(26, 115, 232);
}

/* 下拉菜单基础样式 */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 180px;
  max-height: 70vh;
  overflow-y: auto;
  padding: 8px 0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .08);
  border-radius: 6px;
  list-style: none;
  z-index: 1000;
}

.dropdown-menu li {
  padding: 0;
}

.dropdown-menu--products {
  min-width: 280px;
  max-height: 70vh;
  overflow-y: auto;
}

.dropdown-link--category {
  font-weight: 600;
  color: #1a2a6c;
  font-size: 15px;
  padding-top: 12px;
  padding-bottom: 6px;
}

.dropdown-link--category:hover {
  background: #f0f4ff;
  color: #1a73e8;
}

.dropdown-category:first-child .dropdown-link--category {
  padding-top: 10px;
}

.dropdown-link--product {
  font-size: 14px;
  padding: 8px 14px 8px 22px;
  color: #555;
}

.dropdown-link--product:hover {
  color: #1a73e8;
}

.dropdown-link {
  display: block;
  padding: 10px 14px;
  text-decoration: none;
  color: #333;
  font-size: 16px;
}

.dropdown-link:hover {
  background: #f5f5f5;
  color: #000;
}
.dropdown-link--soon,
.footer-lang-soon {
  color: #999;
  cursor: default;
  font-size: inherit;
}

.dropdown-link--soon:hover {
  background: transparent;
  color: #999;
}

.footer-lang-soon {
  display: block;
  padding: 4px 0;
}


/* 当悬停父级导航项时显示下拉菜单 */
.nav-item.dropdown:hover>.dropdown-menu {
  display: block;
}

/* 无跳转地址的导航项（如语言）支持点击展开，避免只能依赖悬停。 */
.nav-item.dropdown.active>.dropdown-menu {
  display: block;
}

/* =========  联系我们  ========= */
.contact-section {
  padding: 30px 0px;
  background: rgb(247, 249, 252);

  /* 调整整体高度 */
}

.contact-container {
  display: flex;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  /* 调整阴影 */
  border-radius: 10px;
  max-width: 1400px;
  /* 限制最大宽度 */
  margin: 0 auto;
}

.contact-info {
  flex: 1;
  background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
  color: white;
  padding: 40px;
  /* 调整内边距 */
}

.contact-info h2 {
  font-size: 2.1rem;
  /* 调整标题大小 */
  margin-bottom: 15px;
}

.contact-info p {
  font-size: 19px;
  margin-bottom: 50px;
  opacity: 0.9;
  line-height: 1.7;
}

.contact-details {
  margin-top: 20px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 30px;
  /* 调整间距 */
}

.contact-icon {
  width: 50px;
  /* 调整图标大小 */
  height: 50px;
  margin-right: 10px;
  margin-top: 5px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}


.contact-icon .icon-img {
  width: 30px;
  height: 30px;
}

.contact-text h3 {
  font-size: 1.5rem;
  /* 调整文本大小 */
  margin-bottom: 5px;
}

.contact-text p {
  margin-bottom: 0;
  opacity: 0.9;
}

.contact-form {
  flex: 1;
  padding: 40px;
  /* 调整内边距 */
}

.form-title {
  font-size: 1.5rem;
  color: #1a365d;
  margin-bottom: 20px;
  text-align: center;
}

.form-group {
  margin-bottom: 15px;
  /* 调整间距 */
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
  color: #2d3748;
}

.required::after {
  content: "*";
  color: #e53e3e;
  margin-left: 4px;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  /* 调整输入框内边距 */
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  font-size: 0.9rem;
  /* 调整字体大小 */
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: #4299e1;
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
}

textarea.form-control {
  min-height: 100px;
  /* 调整最小高度 */
  resize: vertical;
}

.submit-btn {
  background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
  color: white;
  border: none;
  padding: 12px 25px;
  /* 调整按钮内边距 */
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: transform 0.3s, box-shadow 0.3s;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(6, 153, 225, 0.4);
}

/* 通用占位 */
img.lazy {
  opacity: 0;
}

img.lazy.loaded {
  opacity: 1;
}

.components-title {
  font-size: 39px;
  font-weight: 700;
  color: #111;
  text-align: center;
  margin-bottom: 30px;
}

/* ========= 移动端适配 ========= */
@media (max-width: 768px) {
  .contact-section {
    padding: 20px 15px;
  }

  .contact-container {
    flex-direction: column;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 100%;
  }

  .contact-info {
    padding: 30px 20px;
    order: 2;
    /* 将联系信息移到表单下方 */
  }

  .contact-info h2 {
    font-size: 1.8rem;
    text-align: center;
  }

  .contact-info p {
    font-size: 16px;
    text-align: center;
    line-height: 1.6;
  }

  .contact-item {
    margin-bottom: 25px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .contact-icon {
    margin-right: 0;
    margin-bottom: 10px;
  }

  .contact-text h3 {
    font-size: 1.3rem;
  }

  .contact-form {
    padding: 30px 20px;
    order: 1;
  }

  .form-title {
    font-size: 1.3rem;
  }

  .breadcrumb-inner {
    margin-left: 30px !important;
  }
}

@media (max-width: 480px) {
  .contact-info {
    padding: 25px 15px;
  }

  .contact-info h2 {
    font-size: 1.6rem;
  }

  .contact-info p {
    font-size: 15px;
  }

  .contact-form {
    padding: 25px 15px;
  }

  .form-title {
    font-size: 1.2rem;
  }

  .contact-text h3 {
    font-size: 1.2rem;
  }

  .contact-icon {
    width: 35px;
    height: 35px;
    font-size: 14px;
  }

  .submit-btn {
    padding: 10px 20px;
    font-size: 0.95rem;
  }

  .form-control {
    padding: 8px 10px;
    font-size: 0.85rem;
  }

  textarea.form-control {
    min-height: 80px;
  }
}


@media (max-width: 1250px) {

  .nav-link {
    padding: 25px 8px;
    font-size: 16px;
  }
}
@media (max-width: 1056px) {

  .nav-link {
    padding: 25px 8px;
    font-size: 14px;
  }
}

/* 平板端样式 */
@media (max-width: 958px) {
  .nav-container {
    height: 90px;
    padding: 0 50px;
  }

  .nav-logo img {
    width: 80px;
    height: 80px;
    max-height: 80px;
    max-width: 80px;
  }

  /* 显示汉堡菜单按钮 */
  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  /* 导航菜单 - 移动端样式 */
  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 300px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 90px 20px 20px;
    box-shadow: -5px 0 15px rgba(0, 0, 0, .1);
    transition: right 0.3s ease;
    overflow-y: auto;
    gap: 0;
  }

  .nav-list.active {
    right: 0;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid #eee;
  }

  .nav-link {
    position: relative;
    /* 为绝对定位的箭头添加 */
    padding: 15px 40px 15px 10px;
    /* 右侧留出箭头空间 */
    font-size: 16px;
    white-space: normal;
    cursor: pointer;
  }

  /* 移动端下拉菜单样式 */
  .dropdown-menu {
    position: static;
    display: none;
    width: 100%;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
    background: #f9f9f9;
  }

  /* 确保.active类能正确显示菜单 */
  .nav-item.dropdown .dropdown-menu.active {
    display: block !important;
  }

  /* 关键：在移动端禁用hover效果 */
  .nav-item.dropdown:hover>.dropdown-menu {
    display: none !important;
  }

  /* 移动端只通过.active类控制显示 */
  .nav-item.dropdown.active>.dropdown-menu,
  .dropdown-menu.active {
    display: block !important;
  }

  /* 移动端下拉菜单指示器 - 修改为可点击区域 */
  .nav-item.dropdown>.nav-link::after {
    content: '+';
    position: absolute;
    /* 改为绝对定位 */
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    cursor: pointer;
    transition: transform 0.3s;
  }

  .nav-item.dropdown.active>.nav-link::after {
    content: '-';
    transform: translateY(-50%);
    /* 只保留垂直居中，不旋转 */
  }

  .dropdown-link {
    padding: 12px 20px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
  }

  /* 汉堡菜单动画 */
  .nav-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* 移动端样式 */
@media (max-width: 768px) {
  body {
    padding-top: 90px;
  }

  .nav-container {
    height: 90px;
    padding: 0 15px;
    max-width: 100%;
  }

  .nav-logo img {
    width: 80px;
    height: 80px;
    max-height: 80px;
    max-width: 80px;
  }
}

/* 小屏手机优化 */
@media (max-width: 480px) {
  .nav-container {
    height: 90px;
    padding: 0 10px;
  }

  .nav-logo img {
    width: 80px;
    height: 80px;
    max-height: 80px;
    max-width: 80px;
  }

  .nav-list {
    max-width: 280px;
  }

  .nav-link {
    padding: 12px 8px;
    font-size: 15px;
  }

  .dropdown-link {
    padding: 10px 15px;
    font-size: 14px;
  }
}

/* 超小屏手机优化 */
@media (max-width: 360px) {
  .nav-container {
    height: 90px;
    padding: 0 8px;
  }


  .nav-list {
    max-width: none;
  }

  .nav-link {
    padding: 10px 5px;
    font-size: 14px;
  }
}

/* 桌面端：联系我们 背景高亮 */
.nav-item:last-child>.nav-link {
  background: rgb(26, 115, 232);
  /* 品牌蓝 */
  color: #fff !important;
  border-radius: 20px;
  padding: 9px 20px;
  /* 比普通链接稍大 */
  margin-left: 20px;
  margin-top: 20px;
}

.nav-item:last-child>.nav-link:hover {
  background: rgb(13, 71, 161);
  /* 悬停加深 */
}

/* 移动端：横向占满、圆角取消 */
@media (max-width: 768px) {
  .nav-item:last-child {
    background: #388AD5;
    border-bottom: none;
  }

  .nav-item:last-child>.nav-link {
    color: #fff !important;
    border-radius: 0;
    padding: 18px 20px;
    margin: 0;
  }
}

/* ========== Footer 移动端适配 ========== */
@media (max-width: 1024px) {
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
  }

  .footer-col:first-child {
    grid-column: 1 / -1;
    padding-right: 0;
    margin-bottom: 20px;
  }
}

@media (max-width: 768px) {
  .footer {
    padding: 40px 0 20px;
  }

  .footer-content {
    width: 100%;
    max-width: 100%;
    padding: 0 16px 0 44px;
    box-sizing: border-box;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 12px;
  }

  .footer-col:nth-child(2) {
    padding-left: 0;
  }

  .footer-col:nth-child(4) {
    padding-right: 0;
  }

  .footer-col:first-child {
    grid-column: 1 / -1;
    padding-right: 0;
    text-align: center;
    margin-bottom: 0;
  }

  .footer-col:nth-child(2),
  .footer-col:nth-child(3),
  .footer-col:nth-child(4) {
    text-align: left;
  }

  .footer-col:nth-child(5) {
    grid-column: 1 / -1;
    text-align: center;
  }

  .footer-title {
    font-size: 22px;
    margin-bottom: 12px;
  }

  .footer-text {
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: 25px;
  }

  .footer-socials {
    justify-content: center;
    gap: 15px;
  }

  .social-icon {
    width: 40px;
    height: 40px;
    background-size: 20px;
  }

  .footer-col:nth-child(2) .footer-title,
  .footer-col:nth-child(3) .footer-title,
  .footer-col:nth-child(4) .footer-title {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.3;
  }

  .footer-col:nth-child(2) .footer-list a,
  .footer-col:nth-child(3) .footer-list a,
  .footer-col:nth-child(4) .footer-list a {
    font-size: 13px;
  }

  .footer-list {
    gap: 6px;
  }

  .footer-list a {
    display: inline-block;
    padding: 4px 0;
  }

  .footer-contact {
    gap: 10px;
    font-size: 15px;
  }

  .footer-contact-item {
    justify-content: center;
    text-align: center;
  }

  .footer-icon {
    width: 16px;
  }

  .footer-separator {
    width: 95%;
    margin: 25px auto 12px;
  }

  .footer-bottom {
    padding: 0 5%;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .footer-bottom span {
    text-align: center;
    order: 2;
  }

  .footer-sitemap {
    margin-left: 0;
    order: 1;
  }
}

@media (max-width: 480px) {
  .footer {
    padding: 30px 0 15px;
  }

  .footer-content {
    padding: 0 12px 0 36px;
    gap: 20px 8px;
  }

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

  .footer-text {
    font-size: 13px;
    margin-bottom: 20px;
  }

  .footer-col:nth-child(2) .footer-title,
  .footer-col:nth-child(3) .footer-title,
  .footer-col:nth-child(4) .footer-title {
    font-size: 14px;
  }

  .footer-col:nth-child(2) .footer-list a,
  .footer-col:nth-child(3) .footer-list a,
  .footer-col:nth-child(4) .footer-list a {
    font-size: 12px;
  }

  .footer-socials {
    gap: 12px;
  }

  .social-icon {
    width: 36px;
    height: 36px;
    background-size: 18px;
  }

  .footer-contact {
    font-size: 14px;
    gap: 8px;
  }

  .footer-contact-item {
    flex-direction: column;
    align-items: center;
    gap: 4px;
  }

  .footer-icon {
    width: 14px;
  }

  .footer-bottom {
    font-size: 11px;
    gap: 8px;
  }
}

/* 横屏手机适配 */
@media (max-width: 768px) and (orientation: landscape) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px 16px;
  }

  .footer-col:first-child {
    grid-column: 1 / -1;
    text-align: left;
  }

  .footer-col:nth-child(5) {
    grid-column: 1 / -1;
    text-align: left;
  }

  .footer-socials {
    justify-content: flex-start;
  }

  .footer-contact-item {
    justify-content: flex-start;
    flex-direction: row;
  }
}

/* 平板设备适配 */
@media (min-width: 769px) and (max-width: 1024px) {
  .footer-title {
    font-size: 22px;
  }

  .footer-list a {
    font-size: 13px;
  }
}



/* 确保链接在移动端易于点击 */
@media (max-width: 768px) {
  .footer-list a {
    padding: 8px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .social-icon {
    min-width: 44px;
    min-height: 44px;
  }
}

/* 超小屏幕特殊处理 */
@media (max-width: 360px) {
  .footer-socials {
    gap: 10px;
  }

  .social-icon {
    width: 34px;
    height: 34px;
    background-size: 16px;
  }

  .footer-list a {
    font-size: 13px;
    padding: 6px 0;
  }
}

/* ===== 移动端适配 ===== */
@media (max-width: 1024px) {
  .float-kefu {
    right: 8px;
    bottom: 80px;
    gap: 8px;
  }

  .back-top {
    right: 8px;
    bottom: 20px;
    width: 42px;
    height: 42px;
  }

  .kefu-item {
    width: 42px;
    /* 按钮稍微缩小 */
    height: 42px;
  }

  .kefu-icon {
    width: 22px;
    height: 22px;
  }

  .kefu-popup {
    right: 52px;
    /* 弹出层跟着左移 */
  }

  .kefu-item {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .back-top {
    right: 8px;
    /* 贴边更近，不撑开页面 */
    bottom: 20px;
    /* 悬浮客服上方，避免重叠 */
    width: 42px;
    /* 稍微缩小，省空间 */
    height: 42px;
  }

  .back-top img {
    width: 22px;
    height: 22px;
  }
}

/* ========= 移动端性能与体验优化 ========= */
@media (max-width: 768px) {
  html,
  body {
    overflow-x: hidden;
  }

  body.nav-open {
    overflow: hidden;
  }

  .nav-list {
    -webkit-overflow-scrolling: touch;
  }

  .nav-logo img {
    width: 80px;
    height: 80px;
    max-height: 80px;
    max-width: 80px;
  }

  .float-kefu {
    /* 勿用 contain:paint，弹出层在左侧会超出 48px 宽，裁切后会导致二维码黑块盖住 WhatsApp 按钮 */
    contain: layout style;
  }

}

@media (prefers-reduced-motion: reduce) {
  .nav-list,
  .nav-toggle span,
  .share-round,
  .back-top {
    transition: none !important;
  }
}

/* ===== 全站卡片 CTA（胶囊按钮，与首页产品区一致） ===== */
.card-link,
.card-action-link,
.equipment-link,
.equipment-consult,
a.card-link,
a.card-action-link {
  display: inline-block;
  margin-top: 14px;
  padding: 7px 16px;
  border-radius: 20px;
  text-decoration: none;
  color: #1a73e8;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: rgba(26, 115, 232, 0.1);
  border: 1px solid rgba(26, 115, 232, 0.3);
  transition: all 0.3s ease;
  align-self: center;
  cursor: pointer;
}

.card-link::after,
.card-action-link::after,
.equipment-link::after,
.equipment-consult::after {
  content: " →";
  font-weight: 700;
}

.scene-card:hover .card-link,
.scene-card:hover .card-action-link,
.solution-card-link:hover .card-link,
.solution-card-link:hover .card-action-link,
.equipment-item:hover .card-link,
.equipment-item:hover .card-action-link,
.equipment-item:hover .equipment-link,
.product-item:hover .card-link,
.product-item:hover .card-action-link,
a.card-link:hover,
a.card-action-link:hover,
.card-link:hover,
.card-action-link:hover,
.equipment-link:hover,
.equipment-consult:hover {
  color: #fff;
  background: #1a73e8;
  border-color: #1a73e8;
  box-shadow: 0 3px 10px rgba(26, 115, 232, 0.35);
  text-decoration: none;
}

/* 全站卡片容器统一样式 */
.scene-card,
.solution-card,
.equipment-item {
  border: 1px solid #e8ecf0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.scene-card:hover,
.solution-card-link:hover .solution-card,
.equipment-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.scene-card .card-content,
.solution-card .card-content,
.equipment-item .equipment-description {
  text-align: left;
}

.scene-card .card-link,
.scene-card .card-action-link,
.solution-card .card-link,
.solution-card .card-action-link {
  margin-top: auto;
}

/* ===== 面包屑 + SEO 引导条统一对齐 ===== */
.breadcrumb-column {
  box-sizing: border-box;
}

.breadcrumb-nav:has(.breadcrumb-column) .breadcrumb-column {
  max-width: 1200px;
  margin: 0 auto;
  padding: 110px 5% 0;
}

.breadcrumb-nav:has(.breadcrumb-column) .breadcrumb-inner {
  margin: 0 !important;
  padding: 0 !important;
  max-width: none !important;
  width: 100% !important;
}

.breadcrumb-nav .page-seo-bar {
  margin: 8px 0 0;
  padding: 0;
  font-family: inherit;
  font-size: 1.2rem;
  line-height: 1.5;
  color: #8a9199;
  white-space: normal;
  overflow-wrap: anywhere;
  max-width: 100%;
}

.breadcrumb-nav .page-seo-bar a {
  color: #3498db;
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 152, 219, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.breadcrumb-nav .page-seo-bar a:link,
.breadcrumb-nav .page-seo-bar a:visited {
  color: #3498db;
  text-decoration: none;
}

.breadcrumb-nav .page-seo-bar a:hover {
  color: #2980b9;
  border-bottom-color: #2980b9;
}

/* Inline internal links — brand blue, contrast on body text (#555) */
.breadcrumb-item:link,
.breadcrumb-item:visited {
  color: #000;
  text-decoration: none;
}

.breadcrumb-item:hover,
.breadcrumb-item:focus {
  color: #1a73e8;
  text-decoration: none;
}

.about-text p a,
.intro-text p a,
.intro-text a,
.about-body .about-paragraph a,
main .content-inline-link,
.intro-list a {
  color: #3498db;
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 152, 219, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.about-text p a:hover,
.intro-text p a:hover,
.intro-text a:hover,
.about-body .about-paragraph a:hover,
main .content-inline-link:hover,
.intro-list a:hover {
  color: #2980b9;
  border-bottom-color: #2980b9;
}

.about-text p a:visited,
.intro-text p a:visited,
.intro-text a:visited,
.about-body .about-paragraph a:visited,
main .content-inline-link:visited,
.intro-list a:visited {
  color: #3498db;
}

/* products 页 */
body:has(main .product-all) .breadcrumb-nav .breadcrumb-column {
  max-width: none;
  width: auto;
  margin: 0 0 0 190px;
  padding: 110px 0 0;
}

/* technology 列表页 */
body:has(main .news-list) .breadcrumb-nav .breadcrumb-column {
  max-width: 1400px;
  width: 90%;
  margin: 0 0 0 120px;
  padding: 110px 0 0;
}

@media (max-width: 1400px) {
  body:has(main .product-all) .breadcrumb-nav .breadcrumb-column {
    margin-left: 20px;
  }

  body:has(main .news-list) .breadcrumb-nav .breadcrumb-column {
    margin-left: 60px;
  }
}

@media (max-width: 992px) {
  body:has(main .news-list) .breadcrumb-nav .breadcrumb-column {
    margin-left: 40px;
  }
}

@media (max-width: 768px) {
  .breadcrumb-nav:has(.breadcrumb-column) .breadcrumb-column {
    margin: 0 !important;
    padding: 16px 20px 0;
  }

  body:has(main .product-all) .breadcrumb-nav .breadcrumb-column,
  body:has(main .news-list) .breadcrumb-nav .breadcrumb-column {
    margin-left: 0;
    width: 100%;
  }

  .breadcrumb-nav .page-seo-bar {
    white-space: normal;
    font-size: 1rem;
  }
}

/* ===== FAQ accordion — slide + expanded (blue) state ===== */
.faq-section {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.faq-question {
  font-family: inherit;
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  overflow: hidden;
  transition: grid-template-rows 0.4s ease, opacity 0.35s ease, padding 0.4s ease;
}

.faq-answer > * {
  overflow: hidden;
  min-height: 0;
}

.faq-item.active .faq-answer {
  grid-template-rows: 1fr;
  opacity: 1;
  padding: 4px 24px 22px;
  border-top: 1px solid #eef2f7;
}

.faq-item.active {
  border-color: #1a73e8;
  background: linear-gradient(180deg, #eef5ff 0%, #fff 72%);
  box-shadow: 0 4px 16px rgba(26, 115, 232, 0.12);
}

.faq-item.active:hover {
  transform: none;
  box-shadow: 0 4px 16px rgba(26, 115, 232, 0.16);
}

.faq-item.active .faq-question {
  color: #1a73e8;
  background: transparent;
  border-bottom: 1px solid rgba(26, 115, 232, 0.22);
}

.faq-item.active .faq-answer {
  background: transparent;
  color: #5a6578;
  font-family: inherit;
  font-weight: 600;
}

.faq-answer p,
.faq-answer > p {
  overflow: hidden;
  margin: 0;
  font-family: inherit;
  font-size: 0.975rem;
  line-height: 1.85;
  color: #5a6578;
  font-weight: 600;
  text-align: left;
  -webkit-font-smoothing: antialiased;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  filter: brightness(0) saturate(100%) invert(32%) sepia(85%) saturate(1875%) hue-rotate(196deg) brightness(98%) contrast(95%);
}

.faq-answer ul {
  margin: 0;
  padding-left: 1.35em;
  list-style: disc;
  font-family: inherit;
}

.faq-answer li {
  margin-bottom: 0.4em;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  font-weight: 400;
}

.faq-answer li:last-child {
  margin-bottom: 0;
}

.faq-answer p + p {
  margin-top: 0.75em;
}

.faq-answer p + ul,
.faq-answer ul + p {
  margin-top: 0.65em;
}

@media (prefers-reduced-motion: reduce) {
  .faq-answer {
    transition: none;
  }

  .faq-icon {
    transition: none;
  }
}

/* About 布局兜底：防止 CDN/浏览器缓存旧 index.css 导致桌面左右颠倒 */
        @media (min-width:959px){
            .about-container{display:grid!important;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr)!important;grid-template-rows:auto auto!important;gap:0 26px!important;max-width:1480px;width:94%;margin:0 auto}
            .about-video-col{grid-column:1!important;grid-row:1/span 2!important}
            .about-title{grid-column:2!important;grid-row:1!important}
            .about-body{grid-column:2!important;grid-row:2!important}
        }
        @media (max-width:958px){
            .about-container{display:flex!important;flex-direction:column!important}
        }

.wafu-after-sales-toc { margin: 28px 0 34px; padding: 22px; border: 1px solid #dbe5f2; border-radius: 14px; background: linear-gradient(135deg, #f8fbff 0%, #eef5ff 100%); }
    .wafu-after-sales-toc-label { margin: 0 0 14px; color: #1557b0; font-size: .9rem; font-weight: 700; letter-spacing: .08em; }
    .wafu-after-sales-toc ol { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin: 0; padding: 0; list-style: none; }
    .wafu-after-sales-toc li { margin: 0; }
    .wafu-after-sales-toc a { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 10px 12px; border: 1px solid #e0e8f2; border-radius: 9px; background: #fff; color: #263d5b; font-size: .94rem; line-height: 1.45; text-decoration: none; transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
    .wafu-after-sales-toc a:hover { border-color: #4d86c9; box-shadow: 0 5px 14px rgba(35, 92, 160, .12); transform: translateY(-1px); }
    .wafu-after-sales-toc-index { flex: 0 0 auto; color: #276db5; font-size: .82rem; font-weight: 800; }
    .wafu-question-groups { display: grid; gap: 12px; margin: 20px 0 28px; }
    .wafu-question-group { overflow: hidden; border: 1px solid #dce5ef; border-radius: 12px; background: #fff; }
    .wafu-question-group summary { display: flex; align-items: center; gap: 10px; padding: 15px 17px; color: #203b60; font-weight: 700; line-height: 1.45; cursor: pointer; list-style: none; }
    .wafu-question-group summary::-webkit-details-marker { display: none; }
    .wafu-question-group summary::after { content: '+'; margin-left: auto; color: #276db5; font-size: 1.45rem; font-weight: 400; line-height: 1; }
    .wafu-question-group[open] summary { border-bottom: 1px solid #e6edf5; background: #f7faff; }
    .wafu-question-group[open] summary::after { content: '−'; }
    .wafu-question-group-count { margin-left: auto; color: #6c7d92; font-size: .82rem; font-weight: 500; white-space: nowrap; }
    .wafu-question-group summary::after { margin-left: 0; }
    .wafu-question-group ol { margin: 0; padding: 14px 22px 16px 42px; color: #40546e; line-height: 1.8; }
    .wafu-question-group li { margin: 0 0 8px; padding-left: 2px; }
    .wafu-question-group li:last-child { margin-bottom: 0; }
    @media (max-width: 640px) { .wafu-after-sales-toc { margin: 20px 0 28px; padding: 16px; } .wafu-after-sales-toc ol { grid-template-columns: 1fr; gap: 7px; } .wafu-after-sales-toc a { min-height: 44px; padding: 9px 10px; font-size: .9rem; } .wafu-question-group summary { padding: 14px; font-size: .96rem; } .wafu-question-group ol { padding: 12px 16px 14px 34px; font-size: .94rem; } }

/* Unified floating-contact design: muted channel colors with shared chrome. */
.float-kefu .kefu-item {
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: 0 6px 16px rgba(25, 42, 62, 0.18);
}
.float-kefu .kefu-item.whatsapp,
.float-kefu .kefu-item.wechat { background-color: #2F8A62; }
.float-kefu .kefu-item.email { background-color: #3D6E9F; }
.float-kefu .kefu-item.phone { background-color: #5B6472; }
.float-kefu .kefu-item:hover,
.float-kefu .kefu-item.whatsapp:hover,
.float-kefu .kefu-item.wechat:hover,
.float-kefu .kefu-item.email:hover,
.float-kefu .kefu-item.phone:hover {
  filter: brightness(0.9);
  box-shadow: 0 8px 20px rgba(25, 42, 62, 0.26);
}