/* Development refinements, preserving the approved V2.7 composition. */
.skip-link {
  position: fixed;
  left: 20px;
  top: 12px;
  z-index: 1000;
  background: var(--ink);
  color: #fff;
  padding: 10px 20px;
  border-radius: 24px;
  transform: translateY(-160%);
}
.skip-link:focus {
  transform: translateY(0);
  color: #fff;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
img {
  height: auto;
}
summary:focus-visible {
  outline: 3px solid #ec9465;
  outline-offset: 5px;
  border-radius: 2px;
}
main:focus {
  outline: none;
}
section[id],
main[id] {
  scroll-margin-top: 24px;
}
.btn {
  background: #c84a1a;
  border-color: #c84a1a;
}
.btn.outline,
.btn.ghost {
  background: transparent;
}
.mobile-nav-group > a {
  display: block;
  font-size: 16px;
  padding: 9px 0;
}
.mobile-nav .subnav a {
  line-height: 1.7;
  padding: 5px 0;
}
.field textarea {
  max-height: 480px;
}
.contact-form {
  align-self: start;
}
.contact-form button:disabled {
  cursor: default;
  opacity: 0.6;
}
.footer .visual-disclosure {
  max-width: none;
  margin: 8px 0 0;
  font-size: 11px;
  line-height: 1.7;
  text-align: left;
}
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 20px;
  padding-top: 16px;
  font-size: 11px;
  line-height: 1.7;
}
.footer-meta > span {
  margin: 0;
}
.footer-meta > a {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}
.footer-meta,
.footer-label,
.article-item small {
  color: var(--sub);
}
.hero-bottom .wrap {
  color: #fff;
  text-shadow: 0 1px 5px #16251a;
}
.toc {
  align-self: start;
  position: sticky;
  top: 28px;
}
.toc a[aria-current="location"] {
  color: var(--orange-dark);
  border-color: var(--orange);
}
.article-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.article-grid > *,
.case-grid > *,
.industry-preview > *,
.two-col > *,
.intro-grid > *,
.contact-layout > * {
  min-width: 0;
}
@media (min-width: 801px) and (max-width: 1100px) {
  .article-item .article-art {
    padding: 20px;
  }
  .article-item .art-word {
    font-size: 38px;
  }
  .report-art {
    gap: 16px;
    padding: 24px;
  }
  .report-art .report-word {
    font-size: 36px;
  }
}
@media (max-width: 800px) {
  .article-grid {
    grid-template-columns: 1fr;
  }
  .mobile-nav {
    max-height: calc(100svh - 83px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .mobile-nav .subnav {
    margin-top: 0;
    margin-bottom: 9px;
    gap: 2px 18px;
  }
  .toc {
    display: block;
    position: static;
    border-bottom: 1px solid var(--line);
    padding-bottom: 20px;
  }
  .toc .eyebrow {
    margin-bottom: 10px;
  }
  .toc a {
    font-size: 13px;
  }
}
@media (max-width: 360px) {
  .wrap {
    width: calc(100% - 32px);
  }
  .home-hero h1 {
    font-size: 39px;
  }
  .client-shanghai-books .client-logo-art img {
    max-width: 100%;
  }
  .contact-form {
    padding: 28px 18px;
  }
  .intro-grid h1,
  .contact-sidebar h1 {
    font-size: 32px;
  }
}

/* Registration and verified social accounts share the same footer on every page. */
a.pill,
.hero-bottom a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
a.pill .ui-icon,
.hero-bottom a .ui-icon {
  width: 16px;
  height: 16px;
}
.footer-registration {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 2px 20px;
  margin-top: 4px;
  text-align: left;
  font-size: 12px;
  line-height: 1.7;
  color: var(--sub);
}
.footer-registration a {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 6px;
  min-height: 28px;
  max-width: 100%;
}
.footer-registration img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex: 0 0 20px;
}
.footer-registration a:hover,
.footer-social a:hover {
  color: var(--orange-dark);
}
.footer-top {
  grid-template-columns: minmax(220px, 1.25fr) minmax(220px, 1.1fr) minmax(100px, .6fr) minmax(190px, 1fr);
  align-items: start;
  gap: 36px;
}
.footer-top > * {
  min-width: 0;
}
.footer-top,
.footer-contact {
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.8;
}
.footer-top p {
  font-size: inherit;
}
.footer-top .footer-label {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 600;
  line-height: 24px;
  letter-spacing: .04em;
  color: var(--sub);
}
.footer-brand p {
  margin-top: 16px;
}
.footer-links {
  gap: 0 20px;
  font-size: inherit;
}
.footer-links a {
  display: flex;
  align-items: center;
  min-height: 44px;
}
.footer-contact > p:not(.footer-label) {
  margin: 0 0 12px;
  padding-top: 10px;
  color: var(--sub);
}
.footer-contact .link-arrow {
  font-size: inherit;
}
.footer-social-group {
  margin: 0;
}
.footer-social {
  display: grid;
  justify-items: start;
  gap: 0;
  margin: 0;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-size: inherit;
  color: var(--ink);
}
.footer-social img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  flex: 0 0 22px;
}
@media (min-width: 801px) and (max-width: 1100px) {
  .footer-top {
    grid-template-columns: 1.2fr .7fr 1fr;
    gap: 30px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 800px) {
  .footer-top {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 28px 24px;
  }
  .footer-brand,
  .footer-contact {
    grid-column: 1 / -1;
  }
  .footer-links {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .footer-contact {
    border-top: 1px solid var(--line);
    padding-top: 24px;
  }
  .footer-meta {
    justify-content: flex-start;
  }
}
@media (max-width: 520px) {
  .footer-registration {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }
  .footer-registration a {
    min-height: 32px;
  }
}

/* QR originals are shown in full. The native dialog handles focus containment. */
html.social-dialog-open {
  overflow: hidden;
}
.social-qr-dialog {
  width: min(440px, calc(100% - 32px));
  max-width: none;
  max-height: calc(100vh - 32px);
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 26px;
  border: 1px solid #e5e3da;
  border-radius: 22px;
  background: #fffef9;
  color: var(--ink);
  overflow: auto;
  overscroll-behavior: contain;
  box-shadow: 0 20px 80px #15230d33;
}
.social-qr-dialog:not([open]) {
  display: none;
}
.social-qr-dialog::backdrop {
  background: #1e251f99;
  backdrop-filter: blur(3px);
}
.social-qr-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.social-qr-heading .eyebrow {
  margin-bottom: 5px;
  font-size: 11px;
  letter-spacing: 0.1em;
}
.social-qr-heading h2 {
  margin: 0;
  font-size: 25px;
  line-height: 1.5;
}
.social-qr-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid #d9ddd1;
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
.social-qr-close:hover {
  background: #f2eee3;
}
.social-qr-help {
  margin: 12px 0 18px;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.8;
}
.social-qr-image {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(55vh, 560px);
  max-height: min(55dvh, 560px);
  margin: 0 auto;
  object-fit: contain;
}
.social-qr-account {
  margin: 14px 0 0;
  text-align: center;
  font-size: 13px;
  overflow-wrap: anywhere;
}
.social-qr-original {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  margin-top: 12px;
  color: var(--orange-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 13px;
}
@media (max-width: 520px) {
  .social-qr-dialog {
    padding: 20px;
    border-radius: 18px;
  }
  .social-qr-heading h2 {
    font-size: 23px;
  }
}