/* =========================================================
   PIOON — Layout styles: Header + Footer (Grid / Flex, responsive)
   Depends on: static/img/*.svg  ·  static/js/pioon.js

   Naming convention (header & footer share the same rule):
   - Header is scoped by the <header> element:  header .<class>
   - Footer is scoped by the <footer> element:  footer .<class>
   - Component classes use a consistent block prefix
     (header- / nav- / mega- / lang- / search- / footer- / social- …)
   - All CSS custom properties share a single --pioon- prefix.
     Light-theme tokens (--pioon-*, --pioon-bg/-muted/-border) serve the
     header; dark-theme footer tokens use --pioon-dark-* (no "foot" qualifier).
     Duplicate values are merged (white reused).
   ========================================================= */

/* Icon fonts (pulled in so any page using pioon.css gets them) */
@import url('../fonts/caise/iconfont.css');
/* font-family: yhcsicon — language flags */
@import url('../fonts/icon/iconfont.css');
/* font-family: yh-icon   — social icons */

:root {
  /* Brand */
  --pioon-primary: #0fa3d1;
  --pioon-primary-dark: #0a5f8f;
  --pioon-accent: #38bdf8;

  /* Surfaces */
  --pioon-white: #ffffff;
  --pioon-surface: #f5f8fa;
  --pioon-dark: #0e2236;

  /* Text — light theme */
  --pioon-text: #1f2937;
  --pioon-text-muted: #6b7280;

  /* Text — dark theme */
  --pioon-on-dark: #cbd5e1;
  --pioon-on-dark-strong: #e6edf5;
  --pioon-on-dark-muted: #93a3b8;

  /* Lines */
  --pioon-border: #e5e7eb;
  --pioon-border-on-dark: rgba(255, 255, 255, 0.12);

  --header-h: 65px;
  --maxw: 1320px;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(15, 40, 70, 0.10);
  --ease: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --pioon-content-w: 1300px;
  /* 内容页主容器通用宽度（blog-layout / breadcrumb 等） */
}



body {
  /* 统一字体，避免不同浏览器默认字体差异 */
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  /* 优化字体渲染，让文字更清晰 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 设置基础行高，提升阅读体验 */
  line-height: 1.5;
}

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

/* 去除 IE10+ 链接点击时的高亮背景 */
a {
  text-decoration: none;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

/* 去除列表默认样式（你已提到，补充 ul 和 ol） */
ul,
ol {
  list-style: none;
}

/* 去除表格默认的边框间距，方便自定义 */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* 让媒体元素自适应且 block 化，消除底部 4px 左右的幽灵空白 */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

/* 移除表单元素的默认边框和背景，方便自定义样式 */
input,
button,
textarea,
select {
  font: inherit;
  /* 继承父级字体，避免表单字体突兀 */
  border: none;
  outline: none;
  background: none;
}

/* 按钮重置：去掉默认背景、边框，并设置鼠标手型 */
button {
  cursor: pointer;
  border: none;
  background: none;
}


p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}


/* ===== 通用页面布局与内容版块（全站统一） ===== */
/* 通用内容容器 */
.container {
  max-width: var(--pioon-content-w);
  margin: 0 auto;
  padding: 40px 10px;
}

/* 面包屑（nav 容器 + 列表） */
.breadcrumb {}

.breadcrumb .container {
  padding: 12px 20px;
}

.breadcrumb ol,
.breadcrumb ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--pioon-text-muted);

}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li+li::before {
  content: "/";
  color: var(--pioon-border);
}



.breadcrumb a {
  text-decoration: none;
}

.breadcrumb .active a {
  color: var(--pioon-primary);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb li[aria-current="page"],
.breadcrumb li.active {
  color: var(--pioon-text);
}

/* 页头 Hero 横幅 */
.page-hero {
  position: relative;
  min-height: 450px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--pioon-dark);
  background-size: cover;
  background-position: center;
  color: var(--pioon-white);
}

.page-hero .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-hero .hero-overlay {
  position: absolute;
  inset: 0;

}

.page-hero .container {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 0 20px;
}

.page-hero h1,
.page-hero p {
  margin: 0;
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 700;
  letter-spacing: .5px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, .35);
}

/* =========================================================
   HEADER
   ========================================================= */

/* ---------- Base / reset for header scope ---------- */
.site-header * {
  box-sizing: border-box;
}

.site-header img {
  display: block;
}

.site-header {
  position: sticky;
  /* establishes containing block for .mega-menu */
  top: 0;
  /* 高于 body 级 .nav-backdrop(1150)，保证抽屉/菜单浮在遮罩之上 */
  z-index: 1200;
  background: var(--pioon-primary);
  border-bottom: 1px solid var(--pioon-primary-dark);
}

.site-header .header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  height: var(--header-h);
  padding: 0 10px;
  display: flex;
  align-items: center;
  gap: 18px;
}

/* ---------- Brand / logo ---------- */
.site-header .brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  background: var(--pioon-white);
  height: 100%;
}

.site-header .brand img {
  height: 100%;
  width: auto;
}

/* ---------- Mobile hamburger (hidden on desktop) ---------- */
.site-header .nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: 1px solid var(--pioon-border);
  border-radius: 8px;
  background: var(--pioon-white);
  color: var(--pioon-text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.site-header .nav-toggle .icon {
  width: 22px;
  height: 22px;
}

.site-header .nav-toggle .yh-icon {
  font-size: 22px;
  line-height: 1;
}

/* ---------- Navigation panel ---------- */
.site-header .nav-panel {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-header .nav-panel-head {
  display: none;
}

.site-header .primary-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.site-header .nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header .nav-item {
  position: static;
}

.site-header .nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--pioon-white);
  text-decoration: none;
  padding: 12px 10px;
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: color var(--ease), background var(--ease);
}

.site-header a.nav-link:hover,
.site-header button.nav-link:hover {
  color: var(--pioon-primary);
  background: var(--pioon-surface);
}

.site-header .nav-link.active {
  color: var(--pioon-primary);
}

.site-header .caret {
  display: inline-block;
  width: auto;
  height: auto;
  font-size: 14px;
  line-height: 1;
  transition: transform var(--ease);
}

/* ---------- .site-header .header-actions (search + language) ---------- */
.site-header .header-actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-header .action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: none;
  color: var(--pioon-white);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  font-family: inherit;
  transition: color var(--ease), background var(--ease);
}

.site-header .action-btn:hover {
  color: var(--pioon-primary);
  background: var(--pioon-surface);
}

.site-header .action-btn .icon {
  width: 22px;
  height: 22px;
}

.site-header .action-btn .yh-icon {
  font-size: 22px;
  line-height: 1;
}

/* Globe replaced by current-language flag glyph in the language toggle */
.site-header .lang-toggle .lang-flag {
  font-size: 22px;
  line-height: 1;
}

.site-header .action-divider {
  color: var(--pioon-border);
  font-weight: 300;
}

.site-header .lang-switch {
  position: relative;
}

.site-header .lang-label {
  font-size: 14px;
  font-weight: 600;
}

.site-header .lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  width: max-content;
  list-style: none;
  margin: 0;
  padding: 8px;
  background: var(--pioon-white);
  border: 1px solid var(--pioon-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}

.site-header .lang-menu li {
  margin: 0;
}

.site-header .lang-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--pioon-text);
  text-decoration: none;
  font-size: 14px;
}

.site-header .lang-menu a:hover {
  background: var(--pioon-surface);
  color: var(--pioon-primary);
}

/* Language flag glyphs (yhcsicon / caise font) before each language name */
.site-header .lang-menu .yhcsicon {
  margin-right: 8px;
  font-size: 18px;
  line-height: 1;
  vertical-align: middle;
}

/* ---------- Products mega-menu (CSS Grid) ---------- */
.site-header .mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--pioon-white);
  border-top: 1px solid var(--pioon-border);
  border-bottom: 1px solid var(--pioon-border);
  box-shadow: var(--shadow);
  padding: 26px 0;
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}

.site-header .mega-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  /* 10 columns → 2 rows on desktop */
  gap: 22px 26px;
}

.site-header .mega-col {
  min-width: 0;
}

.site-header .mega-head {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--pioon-primary);
}

.site-header .mega-head a {
  color: inherit;
  text-decoration: none;
}

.site-header .mega-col>ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header .mega-col>ul li {
  margin: 0 0 7px;
}

.site-header .mega-col>ul a {
  display: block;
  font-size: 14px;
  color: var(--pioon-text);
  text-decoration: none;
  padding: 3px 0;
  transition: color var(--ease), padding-left var(--ease);
}

.site-header .mega-col>ul a:hover {
  color: var(--pioon-primary);
  padding-left: 4px;
}

/* ---------- Standard dropdowns ---------- */
.site-header .has-dropdown {
  position: relative;
}

.site-header .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  list-style: none;
  margin: 0;
  padding: 10px;
  background: var(--pioon-white);
  border: 1px solid var(--pioon-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}

.site-header .dropdown li {
  margin: 0;
}

.site-header .dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: 0;
  background: none;
  border-radius: 8px;
  color: var(--pioon-text);
  text-decoration: none;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
}

.site-header .dropdown-link:hover {
  background: var(--pioon-surface);
  color: var(--pioon-primary);
}

.site-header .jiantou {
  color: var(--pioon-text-muted);
  font-weight: 700;
  transition: transform var(--ease);
}

/* ---------- Nested submenu ---------- */
.site-header .has-submenu {
  position: relative;
}

.site-header .submenu {
  position: absolute;
  top: 0;
  left: 100%;
  min-width: 210px;
  list-style: none;
  margin: 0;
  padding: 10px;
  background: var(--pioon-white);
  border: 1px solid var(--pioon-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1060;
  opacity: 0;
  visibility: hidden;
  transform: translateX(6px);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}

.site-header .submenu li {
  margin: 0;
}

.site-header .submenu a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--pioon-text);
  text-decoration: none;
  font-size: 14px;
  transition: background var(--ease), color var(--ease);
}

.site-header .submenu a:hover {
  background: var(--pioon-surface);
  color: var(--pioon-primary);
}

/* ---------- Desktop: reveal on hover / focus ---------- */
@media (min-width: 992px) {

  /* PC 端隐藏导航下拉箭头（移动端保留） */
  .site-header .caret {
    display: none;
  }

  .site-header .has-mega:hover>.mega-menu,
  .site-header .has-mega:focus-within>.mega-menu,
  .site-header .has-dropdown:hover>.dropdown,
  .site-header .has-dropdown:focus-within>.dropdown,
  .site-header .has-submenu:hover>.submenu,
  .site-header .has-submenu:focus-within>.submenu,
  .site-header .lang-switch:hover>.lang-menu,
  .site-header .lang-switch:focus-within>.lang-menu {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
}

/* ---------- Search overlay ---------- */
.site-header .search-overlay {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--pioon-white);
  border-bottom: 1px solid var(--pioon-border);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
}

.site-header .search-overlay.open {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.site-header .search-form {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--pioon-border);
  border-radius: 999px;
  padding: 6px 8px 6px 18px;
}

.site-header .search-form input {
  flex: 1;
  border: 0;
  outline: none;
  font-size: 16px;
  font-family: inherit;
  padding: 8px 0;
  color: var(--pioon-text);
}

.site-header .action-btn {
    color: var(--pioon-primary);
    background: var(--pioon-surface);
}

.site-header .search-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: var(--pioon-primary);
  color: #fff;
  cursor: pointer;
}

.site-header .search-form button .icon {
  width: 20px;
  height: 20px;
  filter: brightness(0) invert(1);
}

.site-header .search-form button .yh-icon {
  font-size: 20px;
  line-height: 1;
}

.site-header .search-close {
  background: var(--pioon-surface) !important;
  color: var(--pioon-text) !important;
}

.site-header .search-close .icon {
  filter: none !important;
}

/* ---------- Mobile / off-canvas ( < 992px ) ---------- */
@media (max-width: 991.98px) {
  .site-header .nav-toggle {
    display: inline-flex;
  }

  .site-header .nav-panel {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: min(86vw, 360px);
    max-width: 360px;
    background: var(--pioon-white);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--ease);
    z-index: 1200;
  }

  .site-header.nav-open .nav-panel {
    transform: translateX(0);
  }

  .site-header .nav-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--pioon-border);
    position: sticky;
    top: 0;
    background: var(--pioon-white);
    z-index: 2;
  }

  .site-header .nav-panel-head .brand img {
    height: 55px;
  }

  .site-header .nav-close {
    width: 40px;
    height: 40px;
    border: 0;
    background: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--pioon-text);
  }

  .site-header .nav-close .icon {
    width: 22px;
    height: 22px;
  }

  .site-header .primary-nav {
    flex: 1 1 auto;
    display: block;
    padding: 8px 0;
    background: var(--pioon-text-muted);
  }

  .site-header .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-header .nav-item {
    border-bottom: 1px solid var(--pioon-border);
  }

  .site-header .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 14px 18px;
    font-size: 16px;
    border-radius: 0;
    white-space: normal;
  }

  .site-header a.nav-link {
    justify-content: flex-start;
  }

  /* mega-menu becomes inline stacked grid on mobile */
  .site-header .mega-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    padding: 4px 18px 16px;
    display: none;
  }

  .site-header .has-mega.open .mega-menu {
    display: block;
  }

  .site-header .mega-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    padding: 0;
  }

  .site-header .mega-head {
    margin-top: 8px;
  }

  /* standard dropdowns inline (FIX: descendant combinator) */
  .site-header .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 0 0 8px;
    min-width: 0;
    display: none;
  }

  .site-header .has-dropdown.open>.dropdown {
    display: block;
  }

  .site-header .dropdown-link {
    padding: 11px 18px;
    border-radius: 0;
  }

  /* submenu inline */
  .site-header .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 0 0 4px 14px;
    min-width: 0;
    display: none;
  }

  .site-header .has-submenu.open>.submenu {
    display: block;
  }

  .site-header .submenu a {
    padding: 10px 18px;
  }

  .site-header .header-actions {
    flex: 0 0 auto;
    justify-content: center;
    gap: 16px;
    padding: 14px 18px;
    border-top: 1px solid var(--pioon-border);
  }

  .site-header .action-divider {
    display: none;
  }

  .site-header .lang-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 0 0 0 6px;
    min-width: 0;
    width: 100%;
    display: none;
  }

  .site-header .lang-switch.open>.lang-menu {
    display: block;
  }

  .site-header .lang-switch {
    width: 100%;
  }

  .site-header .lang-toggle {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 0;
  }

  .site-header .lang-label {
    flex: 1;
    text-align: left;
  }
}

/* ---------- Backdrop for off-canvas ---------- */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 30, 50, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ease), visibility var(--ease);
  z-index: 1150;
}

.site-header.nav-open~.nav-backdrop,
.nav-backdrop.show {
  opacity: 1;
  visibility: visible;
}

/* ---------- Open-state indicators (carets) ---------- */
.site-header .nav-toggle-btn[aria-expanded="true"]>.caret,
.site-header .sub-toggle[aria-expanded="true"]>.caret,
.site-header .lang-toggle[aria-expanded="true"]>.caret {
  transform: rotate(180deg);
}

.site-header .sub-toggle[aria-expanded="true"]>.jiantou {
  transform: rotate(90deg);
}

/* ---------- Small phones ---------- */
@media (max-width: 480px) {
  .site-header .mega-grid {
    grid-template-columns: 1fr;
  }

  .site-header .header-inner {
    height: 50px;
  }

  .site-header .nav-toggle {
    width: 36px;
    height: 36px;
  }

}

/* =========================================================
   FOOTER  (same naming rule: scoped by <footer> element)
   ========================================================= */

footer * {
  box-sizing: border-box;
}

footer img {
  display: block;
}

footer {
  background: var(--pioon-dark);
  color: var(--pioon-on-dark);
  font-size: 14px;
  line-height: 1.7;
}

footer .footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 56px 20px 40px;
  display: grid;
  grid-template-columns: minmax(260px, 3fr) 8fr;
  /* brand | link columns */
  gap: 40px 48px;
}

/* ---------- Brand column ---------- */
footer .footer-brand {
  min-width: 0;
}

footer .footer-logo {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--pioon-white);
}

footer .footer-logo .yhcsicon {
  font-size: 20px;
  line-height: 1;
}

footer .footer-about {
  color: var(--pioon-on-dark-muted);
  margin: 0 0 22px;
  max-width: 340px;
}

footer .footer-follow h6 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pioon-white);
}

footer .social-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

footer .social-list li {
  margin: 0;
}

footer .social-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--pioon-border-on-dark);
  transition: transform var(--ease, 0.2s), background var(--ease, 0.2s);
}

footer .social-list a:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.12);
}

/* Social icons (yh-icon / icon font) — replace the old <img> SVGs */
footer .social-list .yh-icon {
  font-size: 20px;
  line-height: 1;
  color: var(--pioon-white);
}

footer .social-list a:hover .yh-icon {
  filter: brightness(1.15);
}

/* ---------- Link columns (nested grid) ---------- */
footer .footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

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

footer .footer-col h5 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--pioon-white);
  letter-spacing: .02em;
}

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

footer .footer-list li {
  margin: 0 0 9px;
}

footer .footer-list a {
  color: var(--pioon-on-dark-strong);
  text-decoration: none;
  transition: color var(--ease, 0.2s), padding-left var(--ease, 0.2s);
}

footer .footer-list a:hover {
  color: var(--pioon-accent);
  padding-left: 4px;
}

footer .footer-contact h6 {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pioon-white);
}

footer .footer-address {
  color: var(--pioon-on-dark-muted);
  margin: 0 0 12px;
}

footer .footer-contact p {
  margin: 0 0 8px;
}

footer .footer-contact a {
  color: var(--pioon-on-dark-strong);
  text-decoration: none;
}

footer .footer-contact a:hover {
  color: var(--pioon-accent);
}

/* ---------- Footer column toggle (mobile only) ---------- */
footer .footer-col-toggle {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
  margin: 0 0 16px;
  font-family: inherit;
}

footer .footer-col-toggle h5 {
  margin: 0;
}

footer .footer-col-toggle .caret {
  display: inline-block;
  width: auto;
  height: auto;
  font-size: 16px;
  line-height: 1;
  color: #fff;
}

/* ---------- Copyright bar ---------- */
footer .footer-bottom {
  border-top: 1px solid var(--pioon-border-on-dark);
  background: rgba(0, 0, 0, 0.18);
}

footer .footer-bottom-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 20px;
}

footer .footer-bottom p {
  margin: 0;
  color: var(--pioon-on-dark-muted);
  font-size: 13px;
}

footer .footer-bottom a {
  color: var(--pioon-accent);
  text-decoration: none;
}

footer .footer-bottom a:hover {
  text-decoration: underline;
}

/* ---------- Open-state caret for footer column toggle ---------- */
footer .footer-col-toggle[aria-expanded="true"]>.caret {
  transform: rotate(180deg);
}

/* ---------- Tablet ---------- */
@media (max-width: 991.98px) {
  footer .footer-inner {
    grid-template-columns: 1fr;
    /* stack brand above links */
    gap: 36px;
  }

  footer .footer-links {
    gap: 8px 24px;
  }
}

/* ---------- Mobile: collapsible columns ---------- */
@media (max-width: 767.98px) {
  footer .footer-inner {
    padding: 40px 18px 28px;
  }

  footer .footer-links {
    grid-template-columns: 1fr;
    gap: 0;
  }

  footer .footer-col {
    border-bottom: 1px solid var(--pioon-border-on-dark);
    padding: 4px 0;
  }

  footer .footer-col-toggle {
    display: flex;
    margin: 0;
    padding: 14px 0;
  }

  footer .footer-list {
    padding: 0 0 16px;
    display: none;
  }

  footer .footer-col.open>.footer-list {
    display: block;
  }
}


@media (max-width: 480px) {
  footer .footer-bottom-inner {
    padding: 16px 18px;
  }
}

/* ----------iframe video ---------- */
.iframe-x {
  aspect-ratio: 16 / 9;
  width: 100%;
  height: auto;
  display: block;
}

.iframe-y {
  aspect-ratio: 9 / 16;
  width: 40%;
  height: auto;
  margin: 0 auto;
  display: block;
}

/*巴西二维码*/
.brazil-whatsapp-modal {
    position: fixed;
    inset: 0;
    margin: auto;
    padding: 0;
    border: 0;
    background: transparent;
    width: min(472px, calc(100vw - 32px));
    height: fit-content;
    max-height: calc(100vh - 32px);
  }

  .brazil-whatsapp-modal::backdrop {
    background: rgba(0, 0, 0, 0.65);
  }

  .brazil-whatsapp-modal img {
    display: block;
    width: 100%;
    max-height: calc(100vh - 32px);
    height: auto;
    object-fit: contain;
    cursor: pointer;
  }
/* 表单卡片容器 */
.form-wrap {
  background: var(--pioon-surface);
  border: 1px solid var(--pioon-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 26px;
}

/* 表单纵向布局 */
.form-wrap .form-stack {
  display: grid;
  gap: 18px;
}

/* 一行多字段（默认两列） */
.form-wrap .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

/* 字段组 */
.form-wrap .form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-wrap .form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--pioon-text);
}

.form-wrap .req {
  color: #d64545;
}

/* 输入控件 */
.form-wrap .form-control,
.form-wrap .form-select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--pioon-border);
  border-radius: 8px;
  background: var(--pioon-white);
  font-size: 15px;
  font-family: inherit;
  color: var(--pioon-text);
  transition: border-color var(--ease), box-shadow var(--ease);
}

.form-wrap .form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--pioon-primary);
  box-shadow: 0 0 0 3px rgba(14, 123, 184, 0.12);
}

/* 验证码行 */
.captcha-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.captcha-row .form-control {
  flex: 1;
}

.captcha-img {
  height: 46px;
  border: 1px solid var(--pioon-border);
  border-radius: 8px;
  cursor: pointer;
  background: var(--pioon-white);
}

/* 提交区与按钮 */
.form-actions {
  text-align: right;
}

.btn-send {
  padding: 13px 38px;
  border: 0;
  border-radius: 999px;
  background: var(--pioon-primary);
  color: var(--pioon-white);
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--ease), transform var(--ease);
}

.btn-send:hover {
  background: var(--pioon-primary-dark);
  transform: translateY(-1px);
}

/* ---------- Form responsive ---------- */
@media (max-width: 991.98px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .iframe-y {
    width: 80%;
  }

}

@media (max-width: 575.98px) {
  .iframe-y {
    width: 90%;
  }
  .form-wrap {
    padding: 22px 18px;
  }

  .captcha-row {
    flex-direction: column;
    align-items: stretch;
  }

  .captcha-img {
    width: 100%;
    height: 52px;
  }
}

/* =========================================================
   FLOATING BUTTONS (scroll-to-top + WhatsApp message)
   Reference: www.pioon.com (mb-1.css) — global site-wide
   ========================================================= */

/* ---------- Scroll to top (progress ring) ---------- */
.btn-scroll-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 3rem;
  height: 3rem;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: var(--pioon-white);
  box-shadow: inset 0 0 0 0.1rem rgba(227, 229, 233, 0.25);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem);
  transition: opacity var(--ease), transform var(--ease), visibility var(--ease);
  z-index: 1010;
}

/* up-arrow glyph (yh-icon yh-xiangshangjiantou, \e7ac) */
.btn-scroll-top::after {
  content: "\e7ac";
  font-family: "yh-icon" !important;
  font-size: 1.5rem;
  line-height: 3rem;
  color: var(--pioon-primary);
  position: absolute;
  inset: 0;
  text-align: center;
  pointer-events: none;
}

.btn-scroll-top.active-progress {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.btn-scroll-top svg path {
  fill: none;
}

.btn-scroll-top svg.progress-square path {
  stroke: var(--pioon-primary);
  stroke-width: 2;
  box-sizing: border-box;
  transition: stroke-dashoffset 0.1s linear;
}

/* ---------- WhatsApp message button ---------- */
.btn-message {
  position: fixed;
  right: 1.5rem;
  bottom: 5.5rem;
  width: 3rem;
  height: 3rem;
  display: block;
  border-radius: 10px;
  background: var(--pioon-primary);
  box-shadow: inset 0 0 0 0.1rem rgba(227, 229, 233, 0.25);
  z-index: 1010;
  transition: background var(--ease), transform var(--ease);
}

.btn-message:hover {
  background: var(--pioon-primary-dark);
  transform: translateY(-2px);
}

.btn-message .yh-icon {
  display: block;
  width: 100%;
  height: 100%;
  font-size: 2rem;
  line-height: 3rem;
  text-align: center;
  color: var(--pioon-white);
}

/* =========================================================
   CLINICAL APPLICATIONS ICONS (global — reused by home /
   about-us; reference www.pioon.com #home-applications)
   Dark section + circular icon row + effect-1 hover ring
   ========================================================= */

/* 图标行：flex 环绕，两行用 lc-a（6 个） / lc-b（5 个） */
.clinical-icons {
  list-style: none;
  display: -webkit-flex;
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: space-around;
  margin: 0;
  padding: 0;
  width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.clinical-icons.lc-b {
  margin-top: 4rem;
}

.clinical-icons li {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  text-align: center;
  width: 16.6%;
  cursor: pointer;
}

.clinical-icons.lc-b li {
  width: 20%;
}

/* 圆形图标（effect-1：半透明白底 + 白色描边） */
.clinical-icons a.yh-icon {
  font-size: 3.5rem;
  position: relative;
  margin: 0 auto 1rem auto;
  cursor: pointer;
  width: 6rem;
  height: 6rem;
  line-height: 6rem;
  border-radius: 50%;
  z-index: 1;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 0 0 3px #fff;
  background: rgba(255, 255, 255, 0.1);
  -webkit-transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

/* 外圈光晕（hover 扩散） */
.clinical-icons a.yh-icon:after {
  pointer-events: none;
  position: absolute;
  top: -7px;
  left: -7px;
  width: 100%;
  height: 100%;
  padding: 7px;
  border-radius: 50%;
  content: "";
  box-sizing: content-box;
  box-shadow: 0 0 0 4px #fff;
  opacity: 0;
  -webkit-transform: scale(0.8);
  transform: scale(0.8);
  -webkit-transition: -webkit-transform 0.2s, opacity 0.2s;
  transition: transform 0.2s, opacity 0.2s;
}

.clinical-icons li:hover a.yh-icon {
  background: rgba(255, 255, 255, 1);
  color: #31aab3;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.4);
}

.clinical-icons li:hover a.yh-icon:after {
  -webkit-transform: scale(1);
  transform: scale(1);
  opacity: 1;
}

.clinical-icons li span {
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

/* ---------- Clinical icons responsive ---------- */
@media (max-width: 991.98px) {

  .clinical-icons li,
  .clinical-icons.lc-b li {
    width: 33.33%;
  }

  .clinical-icons a.yh-icon {
    font-size: 3rem;
    width: 5rem;
    height: 5rem;
    line-height: 5rem;
  }
}

@media (max-width: 575.98px) {

  .clinical-icons li,
  .clinical-icons.lc-b li {
    width: 33.33%;
    margin-bottom: 18px;
  }

  .clinical-icons a.yh-icon {
    font-size: 2.4rem;
    width: 4.2rem;
    height: 4.2rem;
    line-height: 4.2rem;
    margin-bottom: .7rem;
  }

  .clinical-icons li span {
    font-size: 13px;
  }
}

/* =========================================================
   PAGINATION (global — list/blog/video pages)
   Reference: www.pioon.com (mb-1.css) — Bootstrap-style
   ========================================================= */

.pagination-wrapper {
  margin-top: 3rem;
  padding-top: 2.25rem;
  border-top: 1px solid var(--pioon-border);
}

.pagination-wrapper ul.pagination {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin: 0;
  padding: 0;
}

.pagination-wrapper .page-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  border: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--pioon-text-muted);
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--ease), color var(--ease);
}

.pagination-wrapper .page-link:hover {
  background: var(--pioon-surface);
  color: var(--pioon-primary);
}

.pagination-wrapper .page-item.disabled .page-link {
  color: var(--pioon-border);
  background: transparent;
  cursor: default;
  pointer-events: none;
}

/* active 定义在 disabled 之后：当前页同时带 active+disabled 类时主色底优先 */
.pagination-wrapper .page-item.active .page-link {
  background: var(--pioon-primary);
  color: var(--pioon-white);
}

/* ---------- Pagination responsive ---------- */
@media (max-width: 575.98px) {
  .pagination-wrapper .page-link {
    padding: 0.45rem 0.8rem;
    font-size: 13px;
  }
}

/* =========================================================
   FAQ ACCORDION (global — reusable .faq-item component)
   <details>/<summary> based, no JS required
   ========================================================= */

.faq-item {
  margin: 0 0 10px;
  padding: 16px 18px;
  background: var(--pioon-surface);
  border: 1px solid var(--pioon-border);
  border-radius: 10px;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--pioon-text);
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--pioon-primary);
}

.faq-chevron {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--pioon-white);
  border: 1px solid var(--pioon-border);
  transition: transform .25s ease;
}

.faq-chevron .yh-icon {
  font-size: 12px;
}

.faq-item[open] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--pioon-border);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pioon-text-muted);
}

.faq-answer p {
  margin: 0;
}

.faq-answer p+p {
  margin-top: 10px;
}

.faq-answer ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.faq-answer li {
  margin: 4px 0;
}

/* ---------- FAQ accordion responsive ---------- */
@media (max-width: 575.98px) {
  .faq-item {
    padding: 14px 14px;
  }

  .faq-item summary {
    font-size: 14.5px;
  }

  .faq-answer {
    font-size: 14px;
  }
}