/* =========================================================
   公共 Header
   命名空间：qx-header
   只允许本文件控制 header 内部样式，避免被页面级 CSS 覆盖。
   ========================================================= */

.qx-header {
  --qx-header-height: 64px;
  --qx-header-gap: 20px;
  --qx-nav-gap: 4px;
  --qx-link-pad-y: 7px;
  --qx-link-pad-x: 10px;
  --qx-link-font: 14px;
  --qx-search-width: 170px;
  --qx-search-height: 38px;
  --qx-search-font: 13px;
  --qx-cta-font: 13px;
  --qx-cta-height: 36px;
  --qx-pad: 24px;
  --qx-border: #e5eaf3;
  --qx-text: #26364a;
  --qx-blue: #0b63e5;
  --qx-blue-dark: #0952c2;
  --qx-blue-light: #eef5ff;
  --qx-muted: #8a98aa;

  position: relative;
  position: sticky;
  top: 0;
  z-index: 300;
  display: block;
  margin: 0;
  padding: 0;
  background: #fff;
  border-bottom: 1px solid var(--qx-border);
  color: var(--qx-text);
  font-family: inherit;
  isolation: isolate;
}

.qx-header.scrolled {
  box-shadow: 0 6px 20px rgba(10, 37, 64, 0.08);
}

.qx-header,
.qx-header *,
.qx-header *::before,
.qx-header *::after {
  box-sizing: border-box;
}

.qx-header a {
  color: inherit;
  text-decoration: none;
}

.qx-header ul,
.qx-header li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.qx-header img {
  display: block;
  max-width: none;
  height: auto;
}

.qx-header form {
  margin: 0;
}

.qx-header button,
.qx-header input {
  margin: 0;
  font-family: inherit;
}

.qx-header .qx-header-inner {
  display: flex;
  align-items: center;
  gap: var(--qx-header-gap);
  width: 100%;
  max-width: 1400px;
  height: var(--qx-header-height);
  margin: 0 auto;
  padding: 0 var(--qx-pad);
}

.qx-header .qx-header-logo {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
}

.qx-header .qx-header-logo img {
  width: auto;
  height: 40px;
}

.qx-header .qx-header-nav {
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  gap: 12px;
  min-width: 0;
  margin: 0;
  padding: 0;
}

.qx-header .qx-header-menu {
  display: flex;
  align-items: center;
  gap: var(--qx-nav-gap);
  margin: 0;
  padding: 0;
}

.qx-header .qx-header-menu > li {
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
}

.qx-header .qx-header-link {
  display: block;
  padding: var(--qx-link-pad-y) var(--qx-link-pad-x);
  border-radius: 6px;
  color: var(--qx-text);
  font-size: var(--qx-link-font);
  line-height: 1.5;
  white-space: nowrap;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.qx-header .qx-header-link:hover,
.qx-header .qx-header-link.active {
  background: var(--qx-blue-light);
  color: var(--qx-blue);
}

.qx-header .qx-header-search {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  width: var(--qx-search-width);
  height: var(--qx-search-height);
  margin-left: auto;
  overflow: hidden;
  background: #f6f8fc;
  border: 1px solid var(--qx-border);
  border-radius: 999px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.qx-header .qx-header-search:focus-within {
  background: #fff;
  border-color: var(--qx-blue);
}

.qx-header .qx-header-search-form {
  display: flex;
  align-items: center;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
}

.qx-header .qx-header-search-input {
  flex: 1 1 auto;
  min-width: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0 4px 0 14px;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--qx-text);
  font-size: var(--qx-search-font);
}

.qx-header .qx-header-search-input::placeholder {
  color: var(--qx-muted);
}

.qx-header .qx-header-search-btn {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 100%;
  padding: 0;
  background: transparent;
  border: 0;
  color: #6b7a90;
  cursor: pointer;
  font-size: 13px;
}

.qx-header .qx-header-cta {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  height: var(--qx-cta-height);
  padding: 8px 16px;
  background: var(--qx-blue);
  border-radius: 6px;
  color: #fff;
  font-size: var(--qx-cta-font);
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.qx-header .qx-header-cta:hover {
  background: var(--qx-blue-dark);
  color: #fff;
  transform: translateY(-1px);
}

.qx-header .qx-header-mobile-links,
.qx-header .qx-header-mobile-cta {
  display: none;
}

.qx-header .qx-header-mobile-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 4px;
}

.qx-header .qx-header-mobile-link,
.qx-header .qx-header-more-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 7px 8px;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: var(--qx-text);
  font-family: inherit;
  font-size: var(--qx-link-font);
  font-weight: 600;
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.qx-header .qx-header-mobile-link:hover,
.qx-header .qx-header-mobile-link:focus-visible,
.qx-header .qx-header-more-toggle:hover,
.qx-header .qx-header-more-toggle:focus-visible {
  background: var(--qx-blue-light);
  color: var(--qx-blue);
}

.qx-header .qx-header-more {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.qx-header .qx-header-more-toggle {
  gap: 4px;
  line-height: 1.2;
}

.qx-header .qx-header-more-caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 1em;
  font-size: 12px;
  line-height: 1;
  transform: translateY(-3px);
  transition: transform 0.2s ease;
}

.qx-header .qx-header-more.open .qx-header-more-toggle {
  background: var(--qx-blue-light);
  color: var(--qx-blue);
}

.qx-header .qx-header-more.open .qx-header-more-caret {
  transform: translateY(-3px) rotate(180deg);
}

.qx-header .qx-header-more-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 340;
  display: none;
  width: 240px;
  max-width: calc(100vw - 32px);
  padding: 6px;
  background: #fff;
  border: 1px solid var(--qx-border);
  border-radius: 10px;
  box-shadow: 0 14px 30px rgba(10, 37, 64, 0.14);
}

.qx-header .qx-header-more.open .qx-header-more-menu {
  display: block;
}

.qx-header .qx-header-more-menu a {
  display: block;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--qx-text);
  font-size: 14px;
  line-height: 1.5;
  white-space: nowrap;
}

.qx-header .qx-header-more-menu a:hover,
.qx-header .qx-header-more-menu a:focus-visible {
  background: var(--qx-blue-light);
  color: var(--qx-blue);
}

.qx-header .qx-header-more-search {
  display: flex;
  align-items: center;
  width: 100%;
  height: 38px;
  margin: 4px 0 0;
  overflow: hidden;
  background: #f6f8fc;
  border: 1px solid var(--qx-border);
  border-radius: 8px;
}

.qx-header .qx-header-more-search input {
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  padding: 0 10px;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--qx-text);
  font-size: 13px;
}

.qx-header .qx-header-more-search button {
  flex: 0 0 38px;
  height: 100%;
  padding: 0;
  background: transparent;
  border: 0;
  color: #6b7a90;
  cursor: pointer;
  font-size: 13px;
}

.qx-header .qx-header-toggle {
  display: none;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  height: var(--qx-cta-height);
  margin-left: auto;
  padding: 0 11px;
  position: relative;
  background: #fff;
  border: 1px solid rgba(11, 99, 229, 0.32);
  border-radius: 10px;
  color: var(--qx-blue);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  touch-action: manipulation;
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.qx-header .qx-header-toggle::before {
  content: "";
  position: absolute;
  inset: -7px 0;
}

.qx-header .qx-header-toggle:hover,
.qx-header .qx-header-toggle:focus-visible {
  background: var(--qx-blue-light);
  border-color: var(--qx-blue);
}

.qx-header .qx-header-toggle:focus-visible {
  outline: 3px solid rgba(11, 99, 229, 0.24);
  outline-offset: 2px;
}

.qx-header .qx-header-toggle.active {
  background: var(--qx-blue);
  border-color: var(--qx-blue);
  color: #fff;
}

.qx-header .qx-header-toggle-close {
  display: none;
}

.qx-header .qx-header-toggle.active .qx-header-toggle-open {
  display: none;
}

.qx-header .qx-header-toggle.active .qx-header-toggle-close {
  display: inline;
}

/* ---------- 1200px 以下：收窄文字和间距 ---------- */
@media (max-width: 1200px) {
  .qx-header {
    --qx-header-gap: 16px;
    --qx-nav-gap: 3px;
    --qx-link-pad-x: 8px;
    --qx-link-font: 13.5px;
    --qx-search-width: 160px;
    --qx-search-font: 12.5px;
    --qx-cta-font: 12.5px;
  }

  .qx-header .qx-header-cta {
    padding: 8px 14px;
  }
}

/* ---------- 1024px 以下：继续压缩，保证 800px 以上仍是一行 ---------- */
@media (max-width: 1024px) {
  .qx-header {
    --qx-header-gap: 12px;
    --qx-nav-gap: 2px;
    --qx-link-pad-x: 6px;
    --qx-link-font: 13px;
    --qx-search-width: 160px;
    --qx-search-height: 34px;
    --qx-search-font: 12px;
    --qx-cta-font: 12px;
    --qx-cta-height: 32px;
  }

  .qx-header .qx-header-logo img {
    height: 32px;
  }

  .qx-header .qx-header-cta {
    padding: 7px 12px;
  }
}

/* ---------- 800px 以下：按设计图切换为展开式菜单 ---------- */
@media (max-width: 800px) {
  .qx-header {
    --qx-header-height: 64px;
    --qx-header-gap: 8px;
    --qx-link-font: 14px;
    --qx-cta-font: 13px;
    --qx-cta-height: 34px;
  }

  .qx-header .qx-header-logo img {
    height: 38px;
  }

  .qx-header .qx-header-cta {
    display: none;
  }

  .qx-header .qx-header-mobile-links {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 4px;
  }

  .qx-header .qx-header-mobile-actions {
    margin-left: auto;
  }

  .qx-header .qx-header-mobile-link,
  .qx-header .qx-header-more-toggle {
    padding: 6px 7px;
    font-size: 14px;
  }

  .qx-header .qx-header-toggle {
    display: flex;
    margin-left: 0;
    min-width: 0;
    height: auto;
    padding: 6px 7px;
    background: transparent;
    border: 0;
    border-radius: 6px;
    color: var(--qx-text);
    font-size: 14px;
    font-weight: 400;
  }

  .qx-header .qx-header-toggle:hover,
  .qx-header .qx-header-toggle:focus-visible {
    background: var(--qx-blue-light);
    color: var(--qx-blue);
  }

  .qx-header .qx-header-toggle.active {
    background: var(--qx-blue-light);
    border-color: transparent;
    color: var(--qx-blue);
  }

  .qx-header .qx-header-mobile-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 44px;
    margin-top: 2px;
    background: var(--qx-blue);
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
  }

  .qx-header .qx-header-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    z-index: 320;
    display: none;
    align-items: stretch;
    gap: 0;
    max-height: calc(100vh - var(--qx-header-height));
    padding: 24px var(--qx-pad) 28px;
    overflow-y: auto;
    background: #fff;
    border-top: 1px solid var(--qx-border);
    box-shadow: 0 18px 36px rgba(10, 37, 64, 0.12);
  }

  .qx-header .qx-header-nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
  }

  .qx-header .qx-header-menu {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    width: 100%;
  }

  .qx-header .qx-header-menu > li {
    width: 100%;
  }

  .qx-header .qx-header-link {
    width: 100%;
    padding: 10px 0;
    font-size: var(--qx-link-font);
    line-height: 1.5;
  }

  .qx-header .qx-header-link:hover,
  .qx-header .qx-header-link.active {
    background: transparent;
    color: var(--qx-blue);
  }

  .qx-header .qx-header-search {
    width: 100%;
    height: 68px;
    margin: 0;
    border-radius: 34px;
    background: #f6f8fc;
  }

  .qx-header .qx-header-search-input {
    padding: 0 16px 0 0;
    font-size: 16px;
  }

  .qx-header .qx-header-search-btn {
    order: -1;
    width: 48px;
    padding-left: 16px;
    font-size: 15px;
  }
}

/* ---------- 520px 以下：搜索框移到导航下方 ---------- */
@media (max-width: 520px) {
  .qx-header {
    --qx-link-font: 15px;
  }

  .qx-header .qx-header-nav {
    padding: 20px var(--qx-pad) 24px;
  }

  .qx-header .qx-header-nav.open {
    gap: 16px;
  }

  .qx-header .qx-header-link {
    padding: 9px 0;
  }

  .qx-header .qx-header-search {
    height: 56px;
    border-radius: 28px;
  }
}

@media (max-width: 480px) {
  .qx-header {
    --qx-pad: 14px;
    --qx-header-gap: 6px;
    --qx-cta-font: 12px;
    --qx-cta-height: 30px;
  }

  .qx-header .qx-header-mobile-links {
    gap: 4px;
  }

  .qx-header .qx-header-mobile-actions {
    gap: 4px;
  }

  .qx-header .qx-header-mobile-link,
  .qx-header .qx-header-more-toggle {
    padding: 5px;
    font-size: 14px;
  }

  .qx-header .qx-header-more-menu {
    min-width: 120px;
  }
}

@media (max-width: 360px) {
  .qx-header {
    --qx-pad: 10px;
    --qx-header-gap: 4px;
    --qx-cta-font: 11px;
  }

  .qx-header .qx-header-mobile-links {
    gap: 2px;
  }

  .qx-header .qx-header-mobile-actions {
    gap: 2px;
  }

  .qx-header .qx-header-mobile-link,
  .qx-header .qx-header-more-toggle {
    padding: 4px;
    font-size: 14px;
  }

  .qx-header .qx-header-more-caret {
    font-size: 11px;
  }

  .qx-header .qx-header-more-menu {
    min-width: 112px;
  }
}