.btn,
.btn-primary,
.btn-secondary,
.btn-ghost,
.btn-consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--btn-height);
  padding: 0 var(--btn-padding-x);
  border-radius: var(--btn-radius);
  border: 1px solid transparent;
  font-size: var(--btn-size);
  line-height: 1;
  font-weight: var(--btn-weight);
  letter-spacing: var(--btn-tracking);
  text-align: center;
  white-space: nowrap;
  transition:
    border-color 180ms ease,
    background-color 180ms ease,
    background-image 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.btn:hover,
.btn-primary:hover,
.btn-secondary:hover,
.btn-ghost:hover,
.btn-consult:hover,
.btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-ghost:focus-visible,
.btn-consult:focus-visible {
  opacity: 1;
  transform: translateY(-1px);
}

.btn:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-ghost:focus-visible,
.btn-consult:focus-visible {
  outline: 2px solid rgba(var(--brand-rgb), 0.18);
  outline-offset: 2px;
}

.btn {
  border-color: var(--btn-secondary-border);
  background: #ffffff;
  color: var(--btn-secondary-fg);
  box-shadow: var(--btn-secondary-shadow);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--btn-secondary-border-hover);
  background: var(--btn-secondary-bg-hover);
  color: var(--btn-secondary-fg);
  box-shadow: var(--btn-secondary-shadow-hover);
}

.btn-primary,
.btn-consult {
  border-color: var(--btn-primary-border);
  background: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  box-shadow: var(--btn-primary-shadow);
}

.btn-consult {
  min-height: var(--btn-consult-height);
  min-width: var(--btn-consult-width);
  padding: 0 var(--btn-consult-padding-x);
  border-radius: var(--btn-consult-radius);
  justify-content: center;
  font-size: var(--btn-consult-size);
  font-weight: var(--btn-consult-weight);
  letter-spacing: var(--btn-consult-tracking);
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-consult:hover,
.btn-consult:focus-visible {
  background: var(--btn-primary-bg-hover);
  color: #ffffff;
  box-shadow: var(--btn-primary-shadow-hover);
}

.btn-secondary {
  border-color: var(--btn-secondary-border);
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-fg);
  box-shadow: var(--btn-secondary-shadow);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  border-color: var(--btn-secondary-border-hover);
  background: var(--btn-secondary-bg-hover);
  color: var(--btn-secondary-fg);
  box-shadow: var(--btn-secondary-shadow-hover);
}

.btn-ghost {
  border-color: var(--btn-ghost-border);
  background: var(--btn-ghost-bg);
  color: var(--btn-ghost-fg);
  box-shadow: var(--btn-ghost-shadow);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: var(--btn-ghost-border-hover);
  background: var(--btn-ghost-bg-hover);
  color: var(--btn-ghost-fg-hover);
  box-shadow: var(--btn-ghost-shadow-hover);
}

@media (max-width: 720px) {

  .btn,
  .btn-primary,
  .btn-secondary,
  .btn-ghost,
  .btn-consult {
    min-height: var(--btn-height-sm);
    padding: 0 var(--btn-padding-x-sm);
    font-size: var(--btn-size-sm);
  }

  .btn-consult {
    min-height: var(--btn-consult-height-sm);
    min-width: var(--btn-consult-width-sm);
    padding: 0 var(--btn-consult-padding-x-sm);
    font-size: var(--btn-consult-size-sm);
  }
}

/* Shared section headers used by active landing sections. */
.section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.section-head--center {
  align-items: center;
  text-align: center;
  margin-bottom: 22px;
}

.section-head--center h2 {
  position: relative;
  z-index: 1;
}

.section-head--center h2::before {
  content: attr(data-en);
  position: absolute;
  left: 50%;
  top: -18px;
  transform: translateX(-50%);
  width: max-content;
  font-family: var(--font-latin);
  font-size: 36px;
  letter-spacing: 2px;
  color: rgba(16, 24, 40, 0.06);
  font-weight: 900;
  pointer-events: none;
  white-space: nowrap;
}

.section-head--center h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  margin: 10px auto 0;
  border-radius: var(--radius-pill);
  background: rgba(var(--brand-rgb), 0.9);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.section-head-eyebrow {
  display: inline-block;
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: rgba(var(--brand-rgb), 0.88);
}

.section-head--products .section-head-eyebrow {
  margin-bottom: 6px;
}

.section-head--products h2 {
  margin: 0 0 4px;
}

.section-head--products p {
  max-width: 520px;
}

/* Legacy honor-card markup still used by home/about; shared structure lives here. */
.page-4-b {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.page-4-b-h {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-panel);
  padding: 0;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.page-4-b-h:hover {
  transform: translateY(-4px);
  border-color: rgba(var(--brand-rgb), 0.18);
  box-shadow: var(--shadow-panel-hover);
}

.page-4-b-h-i {
  display: block;
  width: 100%;
  height: auto;
  max-height: 192px;
  object-fit: contain;
  background: rgba(16, 24, 40, 0.04);
}

.page-4-b-h-t {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px;
  background: linear-gradient(
    180deg,
    rgba(16, 24, 40, 0.12),
    rgba(16, 24, 40, 0.7)
  );
  backdrop-filter: blur(6px);
  color: rgba(255, 255, 255, 0.96);
  font-size: 13px;
  font-weight: 900;
  line-height: 1.4;
  text-align: center;
}

@media (max-width: 980px) {
  .page-4-b {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .section-head {
    margin-bottom: 20px;
  }

  .section-head p {
    font-size: 15px;
  }
}

@media (max-width: 560px) {
  .page-4-b {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-head--center h2::before {
    top: -14px;
    font-size: 28px;
  }
}

/* Shared site footer fragment. */
.nfooter {
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, #050b17 0%, #030813 100%);
  color: rgba(255, 255, 255, 0.86);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nfooter a {
  color: inherit;
}

.nfooter .row.nbg {
  width: min(var(--chrome-container), calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0 18px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr 0.9fr;
  gap: 26px;
  align-items: start;
}

.nfooter .footer-t {
  font-weight: 900;
  letter-spacing: 0.2px;
  color: rgba(255, 255, 255, 0.94);
  margin-bottom: 12px;
}

.nfooter .footer-logo {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.nfooter .footer-logo-img {
  display: inline-flex;
  align-items: center;
  font-size: var(--header-brand-size);
  color: #ffffff;
}

.nfooter .footer-i {
  padding: 8px 0;
  color: rgba(226, 236, 255, 0.78);
  transition: color 180ms ease;
}

.nfooter a:hover .footer-i {
  color: rgba(var(--brand-rgb), 0.96);
}

.nfooter .wechat {
  justify-self: end;
  display: grid;
  gap: 10px;
  place-items: center;
}

.nfooter .wechat img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.nfooter .w-txt {
  font-size: 12px;
  color: rgba(226, 236, 255, 0.72);
}

.nfooter .footer-record {
  width: min(var(--chrome-container), calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(226, 236, 255, 0.62);
  font-size: 12px;
  line-height: 1.7;
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  column-gap: 18px;
  row-gap: 2px;
}

.nfooter .footer-record-top,
.nfooter .footer-record-copy {
  margin: 0;
}

.nfooter .footer-record-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  color: rgba(226, 236, 255, 0.72);
}

.nfooter .footer-record-legal {
  color: rgba(226, 236, 255, 0.6);
}

.nfooter .footer-record-icp {
  color: rgba(226, 236, 255, 0.78);
  transition: color 180ms ease;
}

.nfooter .footer-record-icp:hover,
.nfooter .footer-record-icp:focus-visible {
  color: rgba(var(--brand-rgb), 0.96);
}

.nfooter .footer-record-copy {
  max-width: 100%;
  word-break: break-word;
}

.nfooter .phone_hide {
  display: block;
}

@media (min-width: 981px) {
  .nfooter .row.nbg,
  .nfooter .footer-record {
    width: min(var(--chrome-container), calc(100% - 40px));
  }
}

@media (max-width: 820px) {
  .nfooter .row.nbg {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    padding: 56px 0 14px;
  }

  .nfooter .aboutUs,
  .nfooter .chatUs,
  .nfooter .skill {
    min-width: 0;
  }

  .nfooter .f-logo {
    grid-column: 1 / -1;
  }

  .nfooter .wechat {
    grid-column: 1 / -1;
    justify-self: center;
    place-items: center;
  }
}

@media (max-width: 560px) {
  .nfooter .row.nbg {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    padding: 40px 0 14px;
  }

  .nfooter .f-logo {
    grid-column: 1 / -1;
  }

  .nfooter .wechat {
    grid-column: 1 / -1;
    justify-self: center;
    place-items: center;
    margin-top: 6px;
  }

  .nfooter .wechat img {
    width: 108px;
    height: 108px;
  }

  .nfooter .footer-record {
    row-gap: 4px;
    word-break: break-word;
  }
}

/* Floating contact widget shared by injected footer fragments. */
.float-contact {
  --float-trigger-size: 46px;
  --float-hover-gap: 12px;
  --float-stack-gap: 14px;
  position: fixed;
  right: 18px;
  bottom: 86px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: var(--float-hover-gap);
  transition: transform 180ms ease;
}

.float-contact.has-return-top {
  transform: translateY(calc((var(--float-trigger-size) + var(--float-stack-gap)) * -1));
}

.float-btn {
  width: var(--float-trigger-size);
  height: var(--float-trigger-size);
  box-sizing: border-box;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  box-shadow: var(--shadow-panel);
  color: #1f76d2;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.float-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(31, 118, 210, 0.28);
  box-shadow: var(--shadow-panel-hover);
  color: #0d5aa7;
}

.float-btn:active {
  transform: translateY(-1px);
}

.float-btn:focus-visible {
  outline: none;
  border-color: rgba(31, 118, 210, 0.32);
  box-shadow:
    0 0 0 4px rgba(31, 118, 210, 0.12),
    var(--shadow-panel-hover);
}

.float-icon {
  display: block;
  line-height: 0;
}

.float-icon svg {
  display: block;
}

.float-panel {
  position: absolute;
  right: 0;
  bottom: calc(var(--float-trigger-size) + var(--float-hover-gap));
  width: min(540px, calc(100vw - 32px));
  border-radius: var(--radius-md);
  border: 0;
  background: #f3f5f7;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.2);
  overflow: hidden;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.float-panel::before {
  content: none;
}

.float-contact:hover .float-panel,
.float-contact:focus-within .float-panel {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.float-panel-head {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0d5aa7;
  color: #ffffff;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.float-panel-body {
  padding: 20px;
}

.float-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.float-panel-section {
  display: flex;
  flex-direction: column;
  min-height: 292px;
  background: transparent;
  border-radius: 0;
  border: 0;
  box-shadow: none;
  padding: 18px 20px;
}

.float-section-head {
  text-align: center;
}

.float-section-head h3 {
  margin: 0;
  font-size: 16px;
  line-height: 1.25;
  font-weight: 800;
  color: rgba(15, 23, 42, 0.96);
}

.float-section-head p {
  margin: 6px 0 0;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: rgba(15, 23, 42, 0.52);
}

.float-section-rule {
  height: 1px;
  margin: 14px 0 18px;
  background: rgba(15, 23, 42, 0.12);
}

.float-contact-qr {
  display: grid;
  place-items: center;
}

.float-contact-qr img {
  display: block;
  width: 154px;
  height: 154px;
  border-radius: 2px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.float-contact-qr-note {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.75;
  color: rgba(15, 23, 42, 0.66);
  text-align: center;
}

.float-contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: 13px;
  color: rgba(15, 23, 42, 0.8);
  flex: 1;
}

.float-contact-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 6px 0 16px;
}

.float-contact-item + .float-contact-item {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  padding-top: 16px;
}

.float-contact-item-icon {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  flex: 0 0 22px;
  border: 0;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}

.float-contact-item-icon-img {
  display: block;
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.float-contact-item-icon--email {
  background: transparent;
}

.float-contact-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
}

.float-contact-label {
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(15, 23, 42, 0.58);
}

.float-contact-value {
  min-width: 0;
}

.float-contact-value a {
  display: inline-block;
  color: rgba(15, 23, 42, 0.9);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  line-height: 1.35;
  overflow-wrap: normal;
  word-break: normal;
}

.float-contact-value a:hover {
  color: #0d5aa7;
}

.float-contact-value a:focus-visible {
  outline: none;
  color: #0d5aa7;
  text-decoration: underline;
}

.float-contact-desc {
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(15, 23, 42, 0.56);
}

.float-contact-item--email .float-contact-value a {
  font-size: 15px;
  line-height: 1.45;
  letter-spacing: 0;
  white-space: nowrap;
}

.return-top-btn {
  --float-trigger-size: 46px;
  width: var(--float-trigger-size);
  height: var(--float-trigger-size);
  position: fixed;
  z-index: 201;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(8px);
  transition:
    opacity 180ms ease,
    visibility 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    color 180ms ease;
}

.return-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .float-contact,
  .float-btn,
  .float-panel,
  .return-top-btn {
    transition: none;
  }
}

@media (max-width: 980px) {
  .float-panel-grid {
    grid-template-columns: 1fr;
  }

  .float-panel-section {
    min-height: auto;
  }
}

@media (max-width: 720px) {
  .float-contact {
    --float-trigger-size: 44px;
    --float-stack-gap: 12px;
    right: 12px;
    bottom: 18px;
    padding-top: 0;
  }

  .float-btn {
    width: var(--float-trigger-size);
    height: var(--float-trigger-size);
  }

  .return-top-btn {
    --float-trigger-size: 44px;
  }

  .float-panel {
    display: none;
  }

  .float-panel-head {
    height: 52px;
  }

  .float-panel-body {
    padding: 12px;
  }

  .float-panel-section {
    padding: 16px;
  }

  .float-contact-qr img {
    width: 132px;
    height: 132px;
  }

  .float-contact-item {
    gap: 10px;
  }

  .float-contact-item-icon {
    width: 20px;
    height: 20px;
    flex-basis: 20px;
  }

  .float-contact-item-icon-img {
    width: 20px;
    height: 20px;
  }

  .float-contact-item-body {
    min-height: 0;
  }

  .float-contact-value a {
    font-size: 16px;
    overflow-wrap: anywhere;
  }

  .float-contact-item--email .float-contact-value a {
    font-size: 14px;
    white-space: normal;
  }
}