@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

:root {
  --hdr-font: 'DM Sans', 'microsoft yahei', sans-serif;
  --hdr-bg: #ffffff;
  --hdr-top-bg: #121214;
  --hdr-text: #18181b;
  --hdr-muted: #71717a;
  --hdr-top-text: rgba(255, 255, 255, 0.72);
  --hdr-accent: #c41262;
  --hdr-accent-hover: #9e0f4f;
  --hdr-border: #ececef;
  --hdr-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --hdr-main-h: 80px;
  --hdr-top-h: 40px;
  --hdr-transition: 0.25s ease;
}

/* ── Shell ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  font-family: var(--hdr-font);
  background: var(--hdr-bg);
  transition: box-shadow var(--hdr-transition);
}

.site-header.is-scrolled {
  box-shadow: var(--hdr-shadow);
}

.site-header.is-scrolled .header-main {
  border-bottom-color: transparent;
}

/* ── Top bar ── */
.header-topbar {
  background: var(--hdr-top-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  overflow: visible;
  position: relative;
  z-index: 1002;
}

.header-topbar-stack {
  display: block;
}

.header-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--hdr-top-h);
  gap: 20px;
}

.header-lang-bar {
  display: none;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 0;
}

.header-contact a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--hdr-top-text);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--hdr-transition);
}

.header-contact a:hover {
  color: #fff;
}

.header-contact a i {
  font-size: 11px;
  opacity: 0.85;
  color: var(--hdr-accent);
}

.header-divider {
  width: 1px;
  height: 14px;
  margin: 0 16px;
  background: rgba(255, 255, 255, 0.14);
  flex-shrink: 0;
}

.header-topbar-right {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-shrink: 0;
}

.header-social {
  display: flex;
  align-items: center;
  gap: 2px;
}

.header-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  text-decoration: none;
  transition: color var(--hdr-transition), background var(--hdr-transition);
}

.header-social a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.header-social .icon-x {
  display: block;
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 18px;
  background: var(--hdr-accent);
  color: #fff !important;
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
  transition: background var(--hdr-transition), transform 0.2s ease, box-shadow 0.2s ease;
}

.header-cta:hover {
  background: var(--hdr-accent-hover);
  box-shadow: 0 4px 16px rgba(196, 18, 98, 0.35);
  transform: translateY(-1px);
}

/* ── Main bar ── */
.header-main {
  background: var(--hdr-bg);
  border-bottom: 1px solid var(--hdr-border);
}

.header-main-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: var(--hdr-main-h);
  align-items: center;
  column-gap: 40px;
}

.header-logo {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  align-items: center;
  line-height: 0;
}

.header-logo img {
  max-height: 52px;
  max-width: 240px;
  width: auto;
  height: auto;
  object-fit: contain;
  transition: opacity var(--hdr-transition);
}

.header-logo:hover img {
  opacity: 0.82;
}

.header-nav-wrap {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* ── Navbar reset ── */
.site-header .navbar {
  margin: 0 !important;
  border: none !important;
  background: transparent !important;
  min-height: 0 !important;
  width: 100%;
}

.site-header .navbar-collapse {
  padding: 0 !important;
  border: none !important;
  box-shadow: none !important;
  margin: 0 !important;
  width: 100%;
}

.site-header .navbar-nav {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: flex-end !important;
  float: none !important;
  margin: 0 !important;
  height: var(--hdr-main-h);
}

.site-header .navbar-nav > li {
  float: none !important;
  position: relative;
  display: flex !important;
  align-items: center !important;
  flex-shrink: 0;
  height: 100%;
}

.site-header .navbar-nav > li > a {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  float: none !important;
  height: 100%;
  padding: 0 14px !important;
  color: var(--hdr-text) !important;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  white-space: nowrap;
  line-height: 1 !important;
  background: transparent !important;
  border: none;
  border-bottom: 3px solid transparent;
  box-sizing: border-box;
  transition: color var(--hdr-transition), border-color var(--hdr-transition);
}

.site-header .navbar-nav > li > a strong {
  font-weight: 500;
}

.site-header .navbar-nav > li > a:hover,
.site-header .navbar-nav > li > a:focus,
.site-header .navbar-nav > .active > a,
.site-header .navbar-nav > .active > a:hover,
.site-header .navbar-nav > .open > a,
.site-header .navbar-nav > .open > a:hover {
  color: var(--hdr-accent) !important;
  background: transparent !important;
  border-bottom-color: var(--hdr-accent);
}

/* Dropdown */
.site-header .navbar-nav > li.dropdown {
  flex-wrap: nowrap;
}

.site-header .navbar-nav > li.dropdown > a:first-of-type {
  padding-right: 4px !important;
}

.site-header .navbar-nav > li.dropdown > a.dropdown-toggle {
  padding: 0 10px 0 0 !important;
  height: 100%;
  border-bottom: 3px solid transparent;
}

.site-header #app_menudown {
  position: static !important;
  top: auto !important;
  right: auto !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 100% !important;
  width: auto !important;
  padding: 0 10px 0 0 !important;
  font-size: 11px;
  color: var(--hdr-muted) !important;
  background: transparent !important;
  border-bottom: 3px solid transparent;
}

.site-header #app_menudown:hover {
  color: var(--hdr-accent) !important;
  background: transparent !important;
}

.site-header .dropdown-menu.nav_small {
  margin-top: 0;
  padding: 0;
  border: 1px solid var(--hdr-border);
  border-radius: 10px;
  box-shadow: var(--hdr-shadow);
  background: #fff;
  min-width: 220px;
}

.site-header .nav_small > li {
  position: relative;
  list-style: none;
}

.site-header .nav_small > li > a.nav-sub-link,
.site-header .nav_small > li:not(.has-sub) > a {
  display: block !important;
  padding: 11px 18px !important;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--hdr-text) !important;
  background: transparent !important;
  line-height: 1.4;
  height: auto !important;
  border-bottom: none !important;
  clear: none !important;
  transition: color var(--hdr-transition), background var(--hdr-transition);
}

.site-header .nav_small > li > a.nav-sub-link:hover,
.site-header .nav_small > li:not(.has-sub) > a:hover {
  color: var(--hdr-accent) !important;
  background: #fdf2f7 !important;
}

/* 二级有子分类：标题一行 + 箭头绝对定位右侧 */
.site-header .dropdown-menu.nav_small > li.has-sub {
  position: relative !important;
  display: block !important;
  width: 100% !important;
}

.site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-link {
  width: 100% !important;
  box-sizing: border-box !important;
  padding: 11px 48px 11px 18px !important;
}

.site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-toggle {
  position: absolute !important;
  top: 0 !important;
  right: 0 !important;
  left: auto !important;
  bottom: 0 !important;
  z-index: 2;
  width: 48px !important;
  min-width: 48px !important;
  max-width: 48px !important;
  height: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  clear: none !important;
  float: none !important;
  background: transparent !important;
  font-size: 11px;
  color: var(--hdr-muted) !important;
  cursor: pointer;
  line-height: 1 !important;
  white-space: nowrap;
  transition: color var(--hdr-transition);
}

.site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-toggle:hover {
  color: var(--hdr-accent) !important;
}

.site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-toggle .fa {
  display: inline-block !important;
  transition: transform var(--hdr-transition);
}

.site-header .dropdown-menu.nav_small > li.has-sub.open > a.nav-sub-toggle .fa {
  transform: rotate(180deg);
}

/* 三级分类：默认隐藏，点击/悬停才展开 */
.site-header .dropdown-menu2 {
  display: none !important;
  list-style: none;
  margin: 0;
  padding: 0;
  background: #f4f4f5;
}

/* 仅隐藏未点击展开的二级子菜单，避免误匹配 li.has-sub.open */
.site-header .navbar-nav > li.dropdown.open > .dropdown-menu.nav_small .dropdown-menu2 {
  display: none !important;
}

.site-header .navbar-nav > li.dropdown.open > .dropdown-menu.nav_small > li.has-sub.open > .dropdown-menu2 {
  display: block !important;
}

.site-header .dropdown-menu2 > li {
  background: transparent !important;
  height: auto !important;
  line-height: inherit !important;
  padding: 0 !important;
  list-style: none;
}

.site-header .dropdown-menu2 > li > a.nav-third-link {
  display: block !important;
  padding: 10px 18px 10px 28px !important;
  font-size: 13px;
  color: var(--hdr-muted) !important;
  background: transparent !important;
  line-height: 1.4;
  height: auto !important;
  border-bottom: none !important;
  transition: color var(--hdr-transition), background var(--hdr-transition);
}

.site-header .dropdown-menu2 > li > a.nav-third-link:hover {
  color: var(--hdr-accent) !important;
  background: #fdf2f7 !important;
}

@media screen and (min-width: 769px) {
  .site-header .nav_small > li.has-sub:hover > .dropdown-menu2 {
    display: block !important;
  }

  .site-header .dropdown-menu2 {
    position: absolute !important;
    left: calc(100% - 4px) !important;
    top: 0 !important;
    z-index: 30;
    min-width: 220px;
    padding: 6px 0;
    border: 1px solid var(--hdr-border);
    border-radius: 10px;
    box-shadow: var(--hdr-shadow);
    background: #fff;
  }
}

/* Search */
.site-header .navbar-nav > li.header-search-item {
  margin-left: 10px;
  height: 100%;
  display: flex !important;
  align-items: center !important;
}

.site-header .header-search-form {
  position: relative;
  display: flex;
  align-items: center;
  margin: 0;
}

.site-header .header-search-input {
  width: 168px;
  height: 38px;
  padding: 0 42px 0 16px;
  border: 1px solid var(--hdr-border);
  border-radius: 8px;
  background: #fafafa;
  color: var(--hdr-text);
  font-family: var(--hdr-font);
  font-size: 13px;
  line-height: normal;
  box-sizing: border-box;
  transition: border-color var(--hdr-transition), background var(--hdr-transition), box-shadow var(--hdr-transition);
}

.site-header .header-search-input:focus {
  outline: none;
  border-color: rgba(196, 18, 98, 0.4);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(196, 18, 98, 0.1);
}

.site-header .header-search-input::placeholder {
  color: #a1a1aa;
}

.site-header .header-search-submit {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--hdr-muted);
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  transition: color var(--hdr-transition), background var(--hdr-transition);
}

.site-header .header-search-submit:hover {
  color: var(--hdr-accent);
  background: rgba(196, 18, 98, 0.08);
}

/* Mobile toggle */
.header-toggle {
  display: none;
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  align-self: center;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--hdr-border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  transition: border-color var(--hdr-transition), background var(--hdr-transition);
}

.header-toggle:hover {
  background: #fafafa;
  border-color: #d4d4d8;
}

.header-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--hdr-text);
  border-radius: 1px;
  transition: transform var(--hdr-transition), opacity var(--hdr-transition);
}

.header-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.header-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Desktop ── */
@media screen and (min-width: 769px) {
  .header-toggle {
    display: none !important;
  }

  .site-header .navbar-header {
    display: none !important;
  }

  .site-header .navbar-collapse,
  .site-header .navbar-collapse.collapse {
    display: block !important;
    visibility: visible !important;
    height: auto !important;
    overflow: visible !important;
  }
}

/* ── Tablet ── */
@media screen and (min-width: 769px) and (max-width: 1200px) {
  .header-main-inner {
    column-gap: 24px;
  }

  .header-logo img {
    max-height: 44px;
    max-width: 180px;
  }

  .site-header .navbar-nav > li > a {
    padding: 0 10px !important;
    font-size: 13.5px;
  }

  .site-header .header-search-input {
    width: 140px;
  }
}

@media screen and (min-width: 769px) and (max-width: 1080px) {
  .site-header .navbar-nav > li.header-search-item {
    display: none !important;
  }
}

/* ── Mobile ── */
@media screen and (max-width: 768px) {
  :root {
    --hdr-main-h: auto;
  }

  .header-topbar-inner {
    justify-content: center;
    height: 36px;
  }

  .header-lang-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 34px;
    padding: 0 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    overflow: visible;
    position: relative;
  }

  .header-lang-slot {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: auto;
    min-height: 24px;
  }

  .header-contact a {
    font-size: 11px;
  }

  .header-divider {
    margin: 0 10px;
  }

  .header-topbar-right {
    display: none;
  }

  .site-header .header-main .container {
    max-width: 100%;
    padding-left: 12px;
    padding-right: 12px;
  }

  .header-main-inner {
    grid-template-columns: 1fr auto;
    grid-template-rows: 64px auto;
    column-gap: 12px;
  }

  .header-logo {
    padding-left: 0;
  }

  .header-logo img {
    max-height: 42px;
    max-width: 170px;
  }

  .header-toggle {
    display: flex;
  }

  /* 菜单区抵消 container 左右 padding，整行铺满 */
  .header-nav-wrap {
    grid-column: 1 / -1;
    grid-row: 2;
    height: auto;
    width: calc(100% + 24px);
    max-width: none;
    margin-left: -12px;
    margin-right: -12px;
  }

  .site-header .navbar,
  .site-header .navbar-collapse,
  .site-header .navbar-nav {
    width: 100% !important;
    max-width: 100% !important;
  }

  .site-header .navbar-collapse.collapse {
    display: none !important;
    height: 0 !important;
    overflow: hidden;
  }

  .site-header .navbar-collapse.collapse.in {
    display: block !important;
    height: auto !important;
    overflow: visible;
    padding-bottom: 8px;
    border-top: 1px solid var(--hdr-border);
    background: var(--hdr-bg);
  }

  .site-header .navbar-nav {
    flex-direction: column !important;
    align-items: stretch !important;
    height: auto;
    margin: 0 !important;
  }

  .site-header .navbar-nav > li {
    display: block !important;
    width: 100% !important;
    height: auto;
    float: none !important;
  }

  .site-header .navbar-nav > li:not(.dropdown) > a {
    display: flex !important;
    width: 100% !important;
    height: auto !important;
    justify-content: flex-start !important;
    padding: 14px 16px !important;
    border-bottom: 1px solid var(--hdr-border) !important;
    border-left: none;
    border-right: none;
    border-top: none;
    white-space: nowrap;
    box-sizing: border-box;
  }

  /* 有下拉的项：文字 + 箭头同一行，不换行 */
  .site-header .navbar-nav > li.dropdown {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    align-items: stretch !important;
    width: 100% !important;
    border-bottom: 1px solid var(--hdr-border);
  }

  .site-header .navbar-nav > li.dropdown > a:first-of-type {
    display: flex !important;
    flex: 1 1 auto !important;
    width: auto !important;
    min-width: 0;
    height: auto !important;
    justify-content: flex-start !important;
    padding: 14px 16px !important;
    border-bottom: none !important;
    white-space: nowrap;
    box-sizing: border-box;
  }

  .site-header .navbar-nav > li.dropdown > a.dropdown-toggle,
  .site-header .navbar-nav > li.dropdown #app_menudown {
    display: inline-flex !important;
    flex: 0 0 48px !important;
    position: static !important;
    top: auto !important;
    right: auto !important;
    width: 48px !important;
    min-width: 48px !important;
    height: auto !important;
    align-self: stretch !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    border-bottom: none !important;
    background: transparent !important;
  }

  .site-header .navbar-nav > li.dropdown > .dropdown-menu {
    flex: 0 0 100%;
    width: 100% !important;
    position: static !important;
    float: none !important;
    margin: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: #f4f4f5;
    padding: 0;
  }

  .site-header .dropdown-menu.nav_small > li {
    border-bottom: 1px solid var(--hdr-border);
  }

  .site-header .dropdown-menu.nav_small > li:last-child {
    border-bottom: none;
  }

  .site-header .dropdown-menu.nav_small > li > a.nav-sub-link,
  .site-header .dropdown-menu.nav_small > li:not(.has-sub) > a {
    padding: 13px 16px !important;
    font-size: 14px;
    border-bottom: none !important;
  }

  .site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-link {
    padding: 13px 48px 13px 16px !important;
  }

  .site-header .dropdown-menu.nav_small > li.has-sub > a.nav-sub-toggle {
    position: absolute !important;
    top: 0 !important;
    right: 0 !important;
    width: 48px !important;
    min-width: 48px !important;
    max-width: 48px !important;
    height: 100% !important;
    display: flex !important;
    clear: none !important;
  }

  .site-header .navbar-nav > li.dropdown.open > .dropdown-menu.nav_small > li.has-sub.open > .dropdown-menu2 {
    display: block !important;
  }

  .site-header .dropdown-menu.nav_small > li.has-sub > .dropdown-menu2 {
    position: static !important;
    left: auto !important;
    top: auto !important;
    width: 100% !important;
    min-width: 0;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: #e8e8ec;
  }

  .site-header .dropdown-menu.nav_small > li.has-sub.open > .dropdown-menu2 {
    display: block !important;
  }

  .site-header .dropdown-menu2 > li > a.nav-third-link {
    padding: 11px 16px 11px 28px !important;
    font-size: 13px;
    color: var(--hdr-text) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  }

  .site-header .dropdown-menu2 > li:last-child > a.nav-third-link {
    border-bottom: none;
  }

  .site-header .navbar-nav > li.header-search-item {
    margin-left: 0;
    padding: 12px 16px 8px;
    box-sizing: border-box;
  }

  .site-header .header-search-form {
    width: 100%;
  }

  .site-header .header-search-input {
    width: 100%;
  }
}