:root {
  --qiai-nav-height: 64px;
  --qiai-nav-canvas: 1280px;
  --qiai-nav-inner: 1248px;
  --qiai-nav-green: #17633f;
  --qiai-nav-green-soft: #5f8d4e;
  --qiai-nav-ink: #26362c;
  --qiai-nav-muted: #68766d;
  --qiai-nav-line: rgba(23, 99, 63, 0.12);
  --qiai-nav-soft: #f5f7f3;
  --qiai-nav-white: #ffffff;
  --qiai-nav-shadow: 0 16px 42px rgba(17, 52, 34, 0.09);
}

html {
  scroll-padding-top: 80px;
}

.qiai-header,
.qiai-header *,
.qiai-search-layer,
.qiai-search-layer * {
  box-sizing: border-box;
}

.qiai-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 7000;
  width: 100%;
  min-width: var(--qiai-nav-canvas);
  height: var(--qiai-nav-height);
  color: var(--qiai-nav-ink);
  isolation: isolate;
}

.qiai-header::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: rgba(255, 255, 255, 0.985);
  border-bottom: 1px solid var(--qiai-nav-line);
  opacity: 1;
  transition: opacity 180ms ease;
}

.qiai-header::after {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 5;
  height: 2px;
  content: "";
  background: var(--qiai-nav-green);
  opacity: 0;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: left center;
  transition: opacity 80ms ease-out, transform 180ms ease-out;
}

.qiai-header.is-navigating::after {
  opacity: 1;
  transform: scaleX(0.72);
}

.qiai-header.is-navigation-complete::after {
  opacity: 1;
  transform: scaleX(1);
}

body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open)::before {
  background: linear-gradient(180deg, rgba(12, 27, 18, 0.36) 0%, rgba(12, 27, 18, 0.08) 72%, rgba(12, 27, 18, 0) 100%);
  border-bottom-color: transparent;
}

.qiai-header.is-scrolled {
  box-shadow: var(--qiai-nav-shadow);
}

.qiai-header__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  width: var(--qiai-nav-inner);
  max-width: calc(100% - 32px);
  height: var(--qiai-nav-height);
  margin: 0 auto;
  gap: 14px;
}

.qiai-header__brand {
  display: inline-flex;
  flex: 0 0 224px;
  align-items: center;
  min-width: 0;
  height: var(--qiai-nav-height);
  color: var(--qiai-nav-ink);
  text-decoration: none;
  white-space: nowrap;
}

.qiai-header__brand img {
  display: block;
  width: 34px;
  height: 34px;
  margin-right: 10px;
  object-fit: contain;
}

.qiai-header__brand span {
  overflow: hidden;
  color: inherit;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  text-overflow: ellipsis;
}

body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-header__brand,
body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-nav__link,
body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-nav__toggle,
body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-header__search {
  color: #ffffff;
}

body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-header__brand img {
  filter: brightness(0) invert(1);
}

body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-header__consult {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.72);
}

.qiai-nav {
  display: flex;
  flex: 1 1 auto;
  align-self: stretch;
  min-width: 0;
}

.qiai-nav__list {
  display: flex;
  flex: 1 1 auto;
  align-items: stretch;
  justify-content: center;
  min-width: 0;
  height: var(--qiai-nav-height);
  margin: 0;
  padding: 0;
  list-style: none;
}

.qiai-nav__item {
  position: static;
  display: flex;
  align-items: stretch;
  height: var(--qiai-nav-height);
  margin: 0;
  padding: 0;
  list-style: none;
}

.qiai-nav__primary {
  position: relative;
  display: flex;
  align-items: stretch;
  height: var(--qiai-nav-height);
  isolation: isolate;
}

.qiai-nav__primary::before {
  position: absolute;
  inset: 8px 2px;
  z-index: -1;
  content: "";
  background: rgba(23, 99, 63, 0.075);
  opacity: 0;
  pointer-events: none;
  transform: scaleY(0.82);
  transform-origin: center;
  transition: opacity 140ms ease-out, transform 160ms ease-out;
}

.qiai-nav__item:hover .qiai-nav__primary::before,
.qiai-nav__item:focus-within .qiai-nav__primary::before,
.qiai-nav__item.is-open .qiai-nav__primary::before {
  opacity: 1;
  transform: scaleY(1);
}

body.home-page .qiai-header:not(.is-hovered):not(.is-focused):not(.is-scrolled):not(.is-menu-open):not(.is-search-open) .qiai-nav__primary::before {
  background: rgba(255, 255, 255, 0.13);
}

.qiai-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--qiai-nav-height);
  margin: 0;
  padding: 1px 10px 0;
  border: 0;
  border-radius: 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 140ms ease-out, transform 140ms ease-out, background-color 140ms ease-out;
}

.qiai-nav__link::after {
  position: absolute;
  right: 10px;
  bottom: 0;
  left: 10px;
  height: 2px;
  content: "";
  background: var(--qiai-nav-green);
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: center;
  transition: opacity 180ms ease, transform 220ms ease;
}

.qiai-nav__link:hover,
.qiai-nav__link:focus-visible,
.qiai-nav__link[aria-current="page"],
.qiai-nav__item.is-open .qiai-nav__link {
  color: var(--qiai-nav-green);
  text-decoration: none;
}

.qiai-nav__link:hover::after,
.qiai-nav__link:focus-visible::after,
.qiai-nav__link[aria-current="page"]::after,
.qiai-nav__item.is-open .qiai-nav__link::after,
.qiai-nav__link.is-navigation-target::after {
  opacity: 1;
  transform: scaleX(1);
}

.qiai-nav__link.is-navigation-target {
  color: var(--qiai-nav-green);
  background: rgba(23, 99, 63, 0.075);
}

.qiai-nav__toggle {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: var(--qiai-nav-height);
  margin: 0 1px 0 -7px;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  cursor: pointer;
  appearance: none;
}

.qiai-nav__toggle svg {
  width: 12px;
  height: 12px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 220ms ease;
}

.qiai-nav__item.is-open .qiai-nav__toggle {
  color: var(--qiai-nav-green);
}

.qiai-nav__item.is-open .qiai-nav__toggle svg {
  transform: rotate(180deg);
}

.qiai-nav__link:focus-visible,
.qiai-nav__toggle:focus-visible,
.qiai-header__search:focus-visible,
.qiai-header__consult:focus-visible,
.qiai-mega a:focus-visible,
.qiai-search-layer button:focus-visible,
.qiai-search-layer input:focus-visible,
.qiai-search-layer a:focus-visible {
  outline: 2px solid var(--qiai-nav-green-soft);
  outline-offset: -3px;
}

.qiai-header__actions {
  display: flex;
  flex: 0 0 158px;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  height: var(--qiai-nav-height);
}

.qiai-header__search {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 40px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  cursor: pointer;
  appearance: none;
  transition: color 140ms ease-out, background-color 140ms ease-out, transform 140ms ease-out;
}

.qiai-header__search svg,
.qiai-search-layer__close svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  transition: transform 140ms ease-out;
}

.qiai-header__search:hover,
.qiai-header__search:focus-visible {
  color: var(--qiai-nav-green);
  background: rgba(23, 99, 63, 0.07);
}

.qiai-header__search:hover svg,
.qiai-header__search:focus-visible svg {
  transform: scale(1.06);
}

.qiai-header__consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 40px;
  border: 1px solid var(--qiai-nav-green);
  border-radius: 3px;
  color: #ffffff;
  background: var(--qiai-nav-green);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: color 140ms ease-out, background-color 140ms ease-out, border-color 140ms ease-out, box-shadow 160ms ease-out, transform 140ms ease-out;
}

.qiai-header__consult:hover,
.qiai-header__consult:focus-visible {
  color: #ffffff;
  background: #0f5434;
  border-color: #0f5434;
  box-shadow: 0 7px 18px rgba(15, 84, 52, 0.18);
  text-decoration: none;
  transform: translateY(-1px);
}

.qiai-mega {
  position: fixed;
  top: var(--qiai-nav-height);
  right: 0;
  left: 0;
  z-index: 1;
  width: 100%;
  min-width: var(--qiai-nav-canvas);
  max-height: calc(100vh - var(--qiai-nav-height));
  margin: 0;
  padding: 0;
  overflow: auto;
  color: var(--qiai-nav-ink);
  background: rgba(255, 255, 255, 0.995) !important;
  border-top: 1px solid rgba(23, 99, 63, 0.08);
  box-shadow: 0 28px 52px rgba(15, 43, 28, 0.13);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity 180ms ease, transform 220ms ease, visibility 180ms ease;
}

.qiai-nav__item.is-open > .qiai-mega {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.qiai-mega__inner {
  display: grid;
  width: var(--qiai-nav-inner);
  max-width: calc(100% - 64px);
  margin: 0 auto;
  padding: 34px 0 40px;
  gap: 42px;
}

.qiai-mega__inner--about,
.qiai-mega__inner--knowledge {
  grid-template-columns: 1.1fr 1fr 1fr;
}

.qiai-mega__inner--products {
  grid-template-columns: 1.45fr 0.92fr 0.62fr 300px;
  gap: 34px;
}

.qiai-mega__inner--factory,
.qiai-mega__inner--news {
  grid-template-columns: 1.05fr 0.88fr 0.92fr 300px;
  gap: 36px;
}

.qiai-mega__intro,
.qiai-mega__group {
  min-width: 0;
}

.qiai-mega__eyebrow,
.qiai-search-layer__eyebrow {
  display: block;
  margin: 0 0 11px;
  color: var(--qiai-nav-green);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.13em;
}

.qiai-mega__intro h2,
.qiai-search-layer h2 {
  margin: 0;
  color: var(--qiai-nav-ink);
  font-size: 25px;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.qiai-mega__intro p {
  max-width: 330px;
  margin: 14px 0 17px;
  color: var(--qiai-nav-muted);
  font-size: 13px;
  line-height: 1.75;
}

.qiai-mega__text-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--qiai-nav-green);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}

.qiai-mega__text-action span {
  display: inline-block;
  transition: transform 180ms ease;
}

.qiai-mega__text-action:hover span {
  transform: translateX(4px);
}

.qiai-mega__group h3 {
  margin: 0 0 12px;
  padding-bottom: 11px;
  color: #7a867e;
  border-bottom: 1px solid rgba(23, 99, 63, 0.1);
  font-size: 12px;
  font-weight: 650;
  line-height: 1;
  letter-spacing: 0.08em;
}

.qiai-mega__link {
  position: relative;
  isolation: isolate;
  display: block;
  margin: 0;
  padding: 8px 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  text-decoration: none;
}

.qiai-mega__link::before {
  position: absolute;
  inset: 2px -10px;
  z-index: -1;
  content: "";
  background: rgba(23, 99, 63, 0.065);
  border-left: 3px solid var(--qiai-nav-green);
  opacity: 0;
  pointer-events: none;
  transform: scaleX(0.96);
  transform-origin: left center;
  transition: opacity 140ms ease-out, transform 160ms ease-out;
}

.qiai-mega__link::after {
  position: absolute;
  top: 50%;
  right: 2px;
  content: "\2192";
  color: var(--qiai-nav-green);
  opacity: 0;
  pointer-events: none;
  transform: translate(-4px, -50%);
  transition: opacity 140ms ease-out, transform 160ms ease-out;
}

.qiai-mega__link strong {
  display: block;
  color: inherit;
  font-size: 14px;
  font-weight: 550;
  line-height: 1.35;
  transition: transform 160ms ease-out;
}

.qiai-mega__link span {
  display: block;
  margin-top: 3px;
  color: #89948d;
  font-size: 11px;
  line-height: 1.45;
  transition: transform 160ms ease-out;
}

.qiai-mega__link:hover,
.qiai-mega__link:focus-visible,
.qiai-mega__link.is-navigation-target {
  color: var(--qiai-nav-green);
  text-decoration: none;
}

.qiai-mega__link:hover::before,
.qiai-mega__link:focus-visible::before,
.qiai-mega__link.is-navigation-target::before {
  opacity: 1;
  transform: scaleX(1);
}

.qiai-mega__link:hover::after,
.qiai-mega__link:focus-visible::after,
.qiai-mega__link.is-navigation-target::after {
  opacity: 1;
  transform: translate(0, -50%);
}

.qiai-mega__link:hover strong,
.qiai-mega__link:hover span,
.qiai-mega__link:focus-visible strong,
.qiai-mega__link:focus-visible span,
.qiai-mega__link.is-navigation-target strong,
.qiai-mega__link.is-navigation-target span {
  transform: translateX(5px);
}

.qiai-mega__matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 24px;
}

.qiai-mega__visual {
  position: relative;
  display: block;
  align-self: stretch;
  min-height: 190px;
  overflow: hidden;
  color: #ffffff;
  background: #173a28;
  text-decoration: none;
}

.qiai-mega__visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(9, 25, 15, 0.03), rgba(9, 25, 15, 0.68));
}

.qiai-mega__visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
  transform: scale(1.001);
  transition: transform 360ms ease;
}

.qiai-mega__visual--factory img {
  object-position: center 52%;
}

.qiai-mega__visual--news img {
  object-position: center 48%;
}

.qiai-mega__visual > span {
  position: absolute;
  right: 18px;
  bottom: 16px;
  left: 18px;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
}

.qiai-mega__visual:hover img {
  transform: scale(1.035);
}

.qiai-nav-backdrop {
  position: fixed;
  inset: var(--qiai-nav-height) 0 0;
  z-index: 6800;
  min-width: var(--qiai-nav-canvas);
  background: rgba(10, 20, 14, 0.28);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms ease, visibility 180ms ease;
}

.qiai-nav-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.qiai-search-layer {
  position: fixed;
  inset: var(--qiai-nav-height) 0 auto;
  z-index: 6900;
  width: 100%;
  min-width: var(--qiai-nav-canvas);
  margin: 0;
  padding: 0;
  color: var(--qiai-nav-ink);
  background: #ffffff;
  box-shadow: 0 28px 52px rgba(15, 43, 28, 0.13);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity 180ms ease, transform 220ms ease, visibility 180ms ease;
}

.qiai-search-layer.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.qiai-search-layer__inner {
  position: relative;
  width: 900px;
  max-width: calc(100% - 96px);
  margin: 0 auto;
  padding: 48px 0 46px;
}

.qiai-search-layer__close {
  position: absolute;
  top: 32px;
  right: 0;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  cursor: pointer;
  appearance: none;
}

.qiai-search-layer__form {
  display: grid;
  grid-template-columns: 1fr 112px;
  margin-top: 28px;
  border-bottom: 1px solid var(--qiai-nav-ink);
}

.qiai-search-layer__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.qiai-search-layer__form input {
  width: 100%;
  height: 58px;
  margin: 0;
  padding: 0 8px 0 0;
  border: 0;
  border-radius: 0;
  outline: 0;
  color: var(--qiai-nav-ink);
  background: transparent;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 19px;
  font-weight: 450;
}

.qiai-search-layer__form input::placeholder {
  color: #9aa49d;
}

.qiai-search-layer__form button {
  height: 58px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  color: #ffffff;
  background: var(--qiai-nav-green);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  appearance: none;
}

.qiai-search-layer__quick {
  display: flex;
  gap: 24px;
  margin-top: 20px;
}

.qiai-search-layer__quick a {
  color: var(--qiai-nav-muted);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
}

.qiai-search-layer__quick a:hover {
  color: var(--qiai-nav-green);
  text-decoration: none;
}

.qiai-nav__link:active,
.qiai-nav__toggle:active,
.qiai-mega a:active,
.qiai-header__search:active,
.qiai-header__consult:active {
  transform: translateY(1px) scale(0.985);
  transition-duration: 90ms;
}

.qiai-header__search:active svg {
  transform: scale(0.97);
}

.qiai-header-spacer {
  width: 100%;
  min-width: var(--qiai-nav-canvas);
  height: var(--qiai-nav-height);
}

body.home-page .qiai-header-spacer {
  height: 0;
}

body.qiai-search-open {
  overflow: hidden;
}

@media (max-width: 1320px) {
  .qiai-header__inner {
    max-width: calc(100% - 24px);
    gap: 10px;
  }

  .qiai-header__brand {
    flex-basis: 214px;
  }

  .qiai-header__brand span {
    font-size: 15px;
  }

  .qiai-nav__link {
    padding-right: 8px;
    padding-left: 8px;
    font-size: 13px;
  }

  .qiai-nav__link::after {
    right: 8px;
    left: 8px;
  }

  .qiai-header__actions {
    flex-basis: 152px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qiai-header::before,
  .qiai-header::after,
  .qiai-nav__primary::before,
  .qiai-nav__link::after,
  .qiai-nav__link,
  .qiai-nav__toggle svg,
  .qiai-mega,
  .qiai-mega__link,
  .qiai-mega__link::before,
  .qiai-mega__link::after,
  .qiai-mega__link strong,
  .qiai-mega__link span,
  .qiai-mega__text-action span,
  .qiai-mega__visual img,
  .qiai-nav-backdrop,
  .qiai-search-layer,
  .qiai-header__search,
  .qiai-header__search svg,
  .qiai-header__consult {
    transition: none !important;
  }

  .qiai-nav__link:active,
  .qiai-nav__toggle:active,
  .qiai-mega a:active,
  .qiai-header__search:active,
  .qiai-header__consult:active,
  .qiai-mega__link:hover strong,
  .qiai-mega__link:hover span,
  .qiai-mega__link:focus-visible strong,
  .qiai-mega__link:focus-visible span,
  .qiai-mega__link.is-navigation-target strong,
  .qiai-mega__link.is-navigation-target span,
  .qiai-header__consult:hover,
  .qiai-header__consult:focus-visible,
  .qiai-header__search:hover svg,
  .qiai-header__search:focus-visible svg,
  .qiai-header__search:active svg {
    transform: none;
  }
}