/* ==========================================================================
   Hengjia Machinery — supplement.css（补充样式：历史追加的区块与增强）
   --------------------------------------------------------------------------
   加载于 pages 之后、responsive 之前。含面包屑增强、首页区块、 hot-keywords、
   product-faq/docs 等历史追加内容。
   ========================================================================== */
/* ============================================================
   产品卡片 hover 效果增强（与原站 .list-1 保持一致）
   ============================================================ */
.product-card .product-card__image {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border);
    padding-top: 76%;
}
.product-card .product-card__image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card a:hover .product-card__image img {
    transform: scale(1.1);
}
.product-card__title {
    line-height: 40px;
    background-color: #e6e6e6;
    text-align: center;
    margin-top: 2px;
    position: relative;
    overflow: hidden;
}
.product-card__title::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 0;
    height: 100%;
    background-color: var(--color-primary);
    transition: all 0.5s;
}
.product-card__title .product-card__heading {
    position: relative;
    z-index: 1;
    margin: 0;
    font-size: 15px;
    font-weight: 400;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    transition: color 0.5s;
}
.product-card a:hover .product-card__title::before {
    width: 100%;
    left: 0;
}
.product-card a:hover .product-card__title .product-card__heading {
    color: #fff;
}

/* ============================================================
   侧边栏分类导航（与原站 .lanmu / .panel-sd 保持一致）
   ============================================================ */
/* ============================================================
   面包屑导航增强（与原站 .xzjt-curmbs 保持一致）
   ============================================================ */
.breadcrumb {
    padding: 0 0 15px;
    border-bottom: 1px dashed #dcdcdc;
    margin-bottom: 30px;
    font-size: 14px;
    color: #666;
}

.breadcrumb__prefix {
    display: inline-block;
    padding-left: 10px;
    border-left: 10px solid #333;
    font-weight: 700;
    color: #333;
    margin-right: 5px;
}

.breadcrumb .breadcrumb__list {
    display: inline;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb .breadcrumb__item {
    display: inline;
}

.breadcrumb .breadcrumb__item::before {
    content: ">>";
    padding: 0 5px;
    color: #767676;   /* 原 #999，白底比值 2.85 不达标，改后 4.54 */
    font-style: normal;
}

.breadcrumb .breadcrumb__item:first-child::before {
    content: "";
    padding: 0;
}

.breadcrumb .breadcrumb__link {
    color: #666;
    text-decoration: none;
}

.breadcrumb .breadcrumb__link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.breadcrumb .breadcrumb__item--active {
    color: #333;
    font-weight: 700;
}

@media (max-width: 768px) {
    .breadcrumb {
        display: none;
    }
}

/* ============================================================
   页脚
   样式已迁移至 pages.css「1.20 Footer」一节统一维护。
   原此处有一条已废弃的 .site-footer__bottom 定义（含 margin-top:35px，
   该值会在主体与版权条之间留出多余空白），已随页脚改版一并移除。
   ============================================================ */

.home-links {
    padding: 20px 0;
}

.home-links h4 {
    border-bottom: 1px solid #ddd;
    margin: 0;
    font-size: 18px;
    color: var(--color-primary);
    padding-bottom: 15px;
    font-weight: 700;
}

.home-links h4 small {
    text-transform: uppercase;
    font-size: 16px;
    font-weight: 400;
    color: #767676;   /* 原 #999，白底比值 2.85 不达标，改后 4.54 */
    margin-left: 10px;
}

/* ============================================================
   热门搜索栏样式（与原站 .xzjt-sou 保持一致）
   ============================================================ */
.hot-keywords {
    background-color: #f8f8f8;
    border-bottom: 1px solid #eee;
}
.hot-keywords .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 7px 15px;
    max-width: var(--max-width);
}
.hot-keywords__label {
    color: #333;
    font-weight: 700;
    font-size: 13px;
    white-space: nowrap;
}
.hot-keywords__left {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
}
.hot-keywords__list {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}
.hot-keywords__list a {
    display: inline-block;
    padding: 2px 10px;
    color: #666;
    font-size: 13px;
    line-height: 20px;
    transition: var(--transition);
}
.hot-keywords__list a:hover {
    color: var(--color-primary);
}
.hot-keywords__search {
    display: flex;
    align-items: center;
    white-space: nowrap;
}
/* 表单本身必须是 flex：原为 display:block，input 与 button 会因 inline 基线
   对齐产生 4px 垂直错位（按钮被基线推低）。改 flex 后两者严格等高对齐。 */
.hot-keywords__search form {
    display: flex;
    align-items: stretch;
    margin: 0;
    height: 36px;
}
.hot-keywords__search input,
.hot-keywords__search button {
    box-sizing: border-box;
    height: 36px;
    margin: 0;
}
.hot-keywords__search input {
    border: 1px solid #ddd;
    border-right: 0;
    padding: 0 12px;
    font-size: 13px;
    line-height: 34px;
    width: 200px;
    outline: none;
}
.hot-keywords__search input:focus {
    border-color: var(--color-primary);
}
.hot-keywords__search button {
    flex: 0 0 auto;
    width: 60px;
    color: #fff;
    background: var(--color-primary) url(../images/search-btn.png) no-repeat center;
    background-size: 17px;
    border: 0;
    padding: 0;
    font-size: 0;
    cursor: pointer;
    transition: var(--transition);
}
.hot-keywords__search button:hover {
    background-color: #0a4d8c;
}

/* ===== 修复：主导航下拉子菜单（主题原包缺少 sub-menu 样式，子级会平铺撑乱导航条） ===== */
/* 桌面端：hover 展开、绝对定位白底下拉 */
/* 一级菜单等宽等间距（与原站一致：每项固定宽度、文字居中） */
.main-nav__list > li {
  width: 172px;
  flex: 0 0 172px;
}
.main-nav__list > li > a {
  padding: 0;
  text-align: center;
}
.main-nav__list .sub-menu {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  min-width: 100%;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .18);
  z-index: 999;
  flex-direction: column;
}
.main-nav__list li:hover > .sub-menu {
  display: block;
}
.main-nav__list .sub-menu li {
  width: 100%;
}
.main-nav__list .sub-menu a {
  display: block;
  padding: 0 22px;
  font-size: 15px;
  line-height: 44px;
  color: #333333;
  white-space: nowrap;
  background: none;
}
.main-nav__list .sub-menu a:hover,
.main-nav__list .sub-menu .current-menu-item > a {
  background: #f2f5fa;
  color: var(--color-primary);
}

/* 移动端抽屉面板：子分类缩进常显 */
.mobile-nav-panel .sub-menu {
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(0, 0, 0, .06);
}
.mobile-nav-panel .sub-menu a {
  padding-left: 36px;
  font-size: 14px;
}

/* ============================================================
   桌面端右侧悬浮栏（借鉴自 mycorp；移动端隐藏）
   ============================================================ */
.float-bar {
  position: fixed;
  right: 18px;
  bottom: 110px;
  z-index: 990;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.float-bar__item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border: 1px solid #e3e6ec;
  border-radius: 6px;
  background: #ffffff;
  color: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .08);
  transition: all .25s;
  padding: 0;
}
.float-bar__item:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.float-bar__item svg {
  pointer-events: none;
}
.float-bar__tip {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  line-height: 1;
  padding: 8px 12px;
  border-radius: 4px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all .2s;
}
.float-bar__item:hover .float-bar__tip {
  opacity: 1;
  visibility: visible;
}
/* 微信二维码弹出 */
.float-bar__qr-popup {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%);
  background: #fff;
  border: 1px solid #e3e6ec;
  border-radius: 6px;
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transition: all .2s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .15);
}
.float-bar__qr-popup img {
  display: block;
  width: 130px;
  height: 130px;
  object-fit: contain;
}
.float-bar__item--qr:hover .float-bar__qr-popup {
  opacity: 1;
  visibility: visible;
}
.float-bar__item--qr:hover .float-bar__tip {
  opacity: 0;
  visibility: hidden;
}
/* 移动端隐藏（移动端用底部固定导航栏） */
@media (max-width: 1023px) {
  .float-bar {
    display: none;
  }
}

/* ==========================================================================
   文章作者头像（主题设置 → 功能增强 → 用户头像 开启后显示）
   ========================================================================== */