/* Round 6: contact-first engineering capability and human-centered company narrative. */

html[data-round6-contact-about] {
  --r6-ink: #101318;
  --r6-muted: #5d6673;
  --r6-line: #d9dee6;
  --r6-paper: #f5f6f2;
  --r6-surface: #ffffff;
  --r6-blue: #1d55d7;
  --r6-blue-soft: #edf3ff;
  --r6-dark: #0d1118;
  --r6-shell: 1220px;
  color-scheme: light;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
}

html[data-round6-contact-about],
html[data-round6-contact-about] body {
  min-height: 100%;
  margin: 0;
  background: var(--r6-paper);
  color: var(--r6-ink);
}

html[data-round6-contact-about] *,
html[data-round6-contact-about] *::before,
html[data-round6-contact-about] *::after {
  box-sizing: border-box;
}

html[data-round6-contact-about] body {
  overflow-x: hidden;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

html[data-round6-contact-about] :where(img, svg) {
  display: block;
  max-width: 100%;
}

html[data-round6-contact-about] :where(button, input, textarea, select) {
  font: inherit;
}

html[data-round6-contact-about] :where(a, button):focus-visible {
  outline: 3px solid #76a0ff;
  outline-offset: 3px;
}

.round6-shell {
  width: min(var(--r6-shell), calc(100% - 64px));
  margin-inline: auto;
}

.round6-eyebrow {
  margin: 0;
  color: var(--r6-blue);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

.round6-section-title {
  margin: 0;
  color: var(--r6-ink);
  font-size: clamp(32px, 3.7vw, 48px);
  font-weight: 620;
  letter-spacing: -0.045em;
  line-height: 1.14;
  text-wrap: balance;
}

.round6-project-page .catalog-header,
.round6-about-page .catalog-header {
  position: sticky;
  z-index: 120;
  top: 0;
}

/* Project: contact-first hero. */

.round6-project-main {
  min-height: 0;
  overflow: visible;
  background: var(--r6-paper);
}

.round6-project-hero {
  display: grid;
  min-height: 500px;
  align-items: center;
  padding-block: 72px;
  border-bottom: 1px solid var(--r6-line);
  background: var(--r6-surface);
}

.round6-project-hero__grid {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 7fr) minmax(390px, 5fr);
  gap: clamp(52px, 7vw, 104px);
}

.round6-project-hero__copy h1 {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--r6-ink);
  font-size: clamp(52px, 4.4vw, 58px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-wrap: balance;
  word-break: keep-all;
}

.round6-mobile-break {
  display: none;
}

.round6-project-hero__lead {
  max-width: 640px;
  margin: 24px 0 0;
  color: var(--r6-muted);
  font-size: 17px;
  line-height: 1.65;
}

.round6-project-hero__index {
  margin: 22px 0 0;
  color: var(--r6-ink);
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.035em;
}

.round6-contact-card {
  position: relative;
  padding: 28px;
  border: 1px solid var(--r6-line);
  border-radius: 12px;
  background: #f8fafc;
}

.round6-contact-card::before {
  position: absolute;
  top: -1px;
  left: 28px;
  width: 32px;
  height: 2px;
  border-radius: 0 0 2px 2px;
  background: var(--r6-blue);
  content: "";
}

.round6-contact-card h2 {
  margin: 0;
  color: var(--r6-ink);
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.round6-contact-card__description {
  margin: 10px 0 0;
  color: var(--r6-muted);
  font-size: 14px;
  line-height: 1.7;
}

.round6-contact-card__body {
  display: grid;
  align-items: start;
  margin-top: 22px;
  grid-template-columns: 136px minmax(0, 1fr);
  gap: 20px;
}

.round6-contact-card__qr {
  overflow: hidden;
  aspect-ratio: 1;
  border: 1px solid var(--r6-line);
  border-radius: 8px;
  background: #fff;
}

.round6-contact-card__qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.round6-contact-card__actions {
  display: grid;
  gap: 10px;
}

.round6-contact-primary {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
}

.round6-contact-primary {
  padding: 0 14px;
  border: 1px solid var(--r6-ink);
  background: var(--r6-ink);
  color: #fff;
}

.round6-contact-primary:hover {
  background: #292f38;
}

.round6-contact-card__instruction {
  margin: 12px 0 0;
  color: var(--r6-muted);
  font-size: 12px;
  line-height: 1.55;
  word-break: keep-all;
}

/* Project: compact capability scope. */

.round6-capabilities {
  padding-block: 80px 84px;
}

.round6-capabilities__grid {
  display: grid;
  margin-top: 38px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px;
}

.round6-capability {
  display: grid;
  align-content: start;
  min-width: 0;
}

.round6-capability__media {
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--r6-line);
  border-radius: 8px;
  background: #e9edf2;
}

.round6-capability__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms cubic-bezier(.22, 1, .36, 1);
  transform: scale(1);
}

.round6-capability__media--system {
  background: #fff;
}

.round6-capability__media--system img {
  padding: 0;
  object-fit: contain;
  transform: scale(1.04);
}

.round6-capability__media--analysis {
  background: #101722;
}

.round6-capability__media--analysis img {
  object-fit: contain;
}

.round6-capability__media--interface img {
  object-fit: contain;
  transform: scale(1.12);
}

.round6-capability:hover .round6-capability__media img {
  transform: scale(1.012);
}

.round6-capability:hover .round6-capability__media--system img {
  transform: scale(1.055);
}

.round6-capability:hover .round6-capability__media--interface img {
  transform: scale(1.134);
}

.round6-capability h3 {
  margin: 19px 0 0;
  color: var(--r6-ink);
  font-size: 25px;
  font-weight: 640;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.round6-collaboration {
  min-height: 0;
  padding-block: 80px 56px;
  border-top: 1px solid var(--r6-line);
  background: var(--r6-surface);
}

.round6-collaboration__heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
}

.round6-collaboration__heading > p {
  margin: 0 0 5px;
  color: var(--r6-muted);
  font-size: 15px;
}

.round6-project-page .round6-collaboration__grid {
  display: grid;
  min-height: 0;
  margin-top: 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  border: 0;
}

.round6-project-page .round6-collaboration .cooperation-entry {
  min-height: 210px;
  padding: 24px;
  border: 1px solid var(--r6-line);
  border-radius: 12px;
  transition: border-color 200ms ease, background-color 200ms ease;
}

.round6-project-page .round6-collaboration .cooperation-entry:hover {
  border-color: #aeb9c9;
  background: #f6f7f8;
}

.round6-project-page .round6-collaboration .cooperation-entry:nth-child(2):hover {
  border-color: #30343a;
  background: #15171a;
}

.round6-project-page .round6-collaboration .cooperation-entry__body {
  margin-block: 20px 16px;
}

.round6-project-page .round6-collaboration .cooperation-entry__title {
  font-size: clamp(31px, 3.1vw, 42px);
}

.round6-project-page .round6-collaboration .cooperation-entry__summary {
  max-width: 42ch;
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.65;
}

.round6-project-reminder {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--r6-line);
}

.round6-project-reminder p {
  margin: 0;
  color: var(--r6-muted);
}

.round6-project-page.cooperation-detail-open {
  overflow: hidden;
}

html[data-round6-contact-about] .catalog-brand {
  min-height: 44px;
}

html[data-round6-contact-about] .catalog-mobile-nav a,
html[data-round6-contact-about] .catalog-knowledge-menu a {
  min-height: 44px;
  display: flex;
  align-items: center;
}

/* About: identity, purpose and current capability. */

.round6-about-main {
  background: var(--r6-paper);
}

.round6-about-hero {
  display: grid;
  min-height: 430px;
  align-items: center;
  padding-block: 88px 80px;
  border-bottom: 1px solid var(--r6-line);
  background: var(--r6-surface);
}

.round6-about-hero__grid {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 7fr) minmax(360px, 5fr);
  gap: clamp(44px, 4.5vw, 68px);
}

.round6-about-hero h1 {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--r6-ink);
  font-size: clamp(48px, 4.15vw, 54px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.round6-about-hero__lead {
  max-width: 690px;
  margin: 25px 0 0;
  color: var(--r6-muted);
  font-size: 17px;
  line-height: 1.72;
}

.round6-about-stats {
  min-width: 0;
}

.round6-about-stats h2 {
  margin: 0 0 18px;
  color: var(--r6-ink);
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.round6-about-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--r6-line);
  border-left: 1px solid var(--r6-line);
}

.round6-about-stats__grid > a {
  display: grid;
  min-height: 112px;
  align-content: center;
  padding: 18px 20px;
  gap: 5px;
  border-right: 1px solid var(--r6-line);
  border-bottom: 1px solid var(--r6-line);
  color: var(--r6-ink);
  text-decoration: none;
  transition: background-color 160ms ease;
}

.round6-about-stats__grid > a:hover {
  background: #edf1f7;
}

.round6-about-stats__grid strong {
  font-size: clamp(32px, 3.2vw, 44px);
  font-weight: 580;
  letter-spacing: -0.045em;
  line-height: 1;
}

.round6-about-stats__grid span {
  color: var(--r6-muted);
  font-size: 13px;
}

.round6-about-section {
  padding-block: 72px;
}

.round6-origin__grid {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(50px, 7vw, 100px);
}

.round6-origin__grid--owner-blocked {
  grid-template-columns: minmax(0, 760px);
}

.round6-origin h2,
.round6-team h2,
.round6-current-capabilities h2,
.round6-public-construction h2,
.round6-about-cta h2 {
  margin: 0;
  color: var(--r6-ink);
  font-size: clamp(30px, 3.5vw, 45px);
  font-weight: 620;
  letter-spacing: -0.045em;
  line-height: 1.15;
}

.round6-origin__copy {
  margin-top: 24px;
}

.round6-origin__copy p {
  margin: 0;
  color: var(--r6-muted);
  font-size: 16px;
  line-height: 1.8;
}

.round6-team[hidden] {
  display: none;
}

.round6-team__profiles {
  display: grid;
  margin-top: 28px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.round6-team-card {
  display: grid;
  min-width: 0;
  padding: 20px;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 20px;
  border: 1px solid var(--r6-line);
  border-radius: 12px;
  background: var(--r6-surface);
  color: var(--r6-ink);
  text-decoration: none;
}

.round6-team-card__portrait {
  overflow: hidden;
  aspect-ratio: 1;
  border-radius: 8px;
  background: #e8ebef;
}

.round6-team-card__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.round6-team-card h3,
.round6-team-card p {
  margin: 0;
}

.round6-team-card h3 {
  font-size: 21px;
}

.round6-team-card__role {
  margin-top: 4px !important;
  color: var(--r6-blue);
  font-size: 13px;
  font-weight: 700;
}

.round6-team-card__summary,
.round6-team-card__background {
  margin-top: 10px !important;
  color: var(--r6-muted);
  font-size: 13px;
  line-height: 1.65;
}

.round6-current-capabilities {
  border-top: 1px solid var(--r6-line);
  background: var(--r6-surface);
}

.round6-current-capabilities__grid {
  display: grid;
  margin-top: 36px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.round6-current-capability {
  display: grid;
  min-height: 176px;
  align-content: space-between;
  padding: 24px 8px 0;
  border-top: 2px solid var(--r6-line);
  background: transparent;
  color: var(--r6-ink);
  text-decoration: none;
}

.round6-current-capability:hover {
  border-color: var(--r6-blue);
  background: transparent;
}

.round6-current-capability h3,
.round6-current-capability p {
  margin: 0;
}

.round6-current-capability h3 {
  font-size: 24px;
  font-weight: 640;
  letter-spacing: -0.035em;
}

.round6-current-capability p {
  margin-top: 11px;
  color: var(--r6-muted);
  font-size: 14px;
  line-height: 1.65;
}

.round6-current-capability span {
  color: var(--r6-blue);
  font-size: 13px;
  font-weight: 700;
}

/* One-time motion used only to explain hierarchy and sequence. */

.round6-motion-ready .round6-contact-card {
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 460ms cubic-bezier(.22, 1, .36, 1), transform 460ms cubic-bezier(.22, 1, .36, 1);
}

.round6-motion-ready .round6-contact-card.is-visible {
  opacity: 1;
  transform: none;
}

.round6-motion-ready .round6-reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 420ms cubic-bezier(.22, 1, .36, 1), transform 420ms cubic-bezier(.22, 1, .36, 1);
  transition-delay: calc(var(--r6-index, 0) * 70ms);
}

.round6-motion-ready .round6-reveal.is-visible {
  opacity: 1;
  transform: none;
}

.round6-public-construction {
  background: var(--r6-paper);
}

.round6-public-build {
  display: grid;
  margin-top: 34px;
  padding: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--r6-line);
  border-bottom: 1px solid var(--r6-line);
}

.round6-public-build > a {
  display: grid;
  min-width: 0;
  min-height: 156px;
  align-content: space-between;
  padding: 23px 20px;
  border-right: 1px solid var(--r6-line);
  color: var(--r6-ink);
  text-decoration: none;
}

.round6-public-build > a:last-child {
  border-right: 0;
}

.round6-public-build > a:hover {
  background: #edf1f7;
}

.round6-public-build__value,
.round6-public-build__label {
  margin: 0;
}

.round6-public-build__value {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.round6-public-build strong {
  font-size: clamp(36px, 3.7vw, 50px);
  font-weight: 580;
  letter-spacing: -0.045em;
}

.round6-public-build__value span,
.round6-public-build__label {
  color: var(--r6-muted);
  font-size: 13px;
}

.round6-public-build__action {
  color: var(--r6-blue);
  font-size: 13px;
  font-weight: 700;
}

.round6-about-cta {
  padding-block: 72px;
  border-top: 1px solid var(--r6-line);
  background: var(--r6-surface);
}

.round6-about-cta__inner {
  display: grid;
  align-items: end;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 44px;
}

.round6-about-cta p {
  margin: 15px 0 0;
  color: var(--r6-muted);
}

.round6-about-cta__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.round6-primary-link,
.round6-secondary-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.round6-primary-link {
  padding-inline: 20px;
  border: 1px solid var(--r6-ink);
  background: var(--r6-ink);
  color: #fff;
}

.round6-secondary-link {
  color: var(--r6-blue);
}

@media (max-width: 1024px) {
  .round6-project-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
    gap: 40px;
  }

  .round6-capabilities__grid,
  .round6-current-capabilities__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .round6-capability:last-child,
  .round6-current-capability:last-child {
    grid-column: 1 / -1;
  }

  .round6-origin__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .round6-about-hero {
    min-height: 0;
    padding-block: 72px;
  }

  .round6-about-hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 42px;
  }
}

@media (max-width: 767px) {
  .round6-shell {
    width: calc(100% - 36px);
  }

  .round6-project-hero,
  .round6-about-hero {
    min-height: 0;
    padding-block: 44px 48px;
  }

  .round6-project-hero__grid {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .round6-project-hero__copy h1,
  .round6-about-hero h1 {
    margin-top: 13px;
    font-size: clamp(36px, 10.5vw, 42px);
    line-height: 1.1;
  }

  .round6-mobile-break {
    display: block;
  }

  .round6-project-hero__lead,
  .round6-about-hero__lead {
    margin-top: 17px;
    font-size: 15px;
    line-height: 1.72;
  }

  .round6-project-hero__index {
    margin-top: 14px;
    font-size: 13px;
  }

  .round6-contact-card {
    padding: 23px 20px 20px;
  }

  .round6-contact-card h2 {
    font-size: 23px;
  }

  .round6-contact-card__description {
    margin-top: 7px;
  }

  .round6-contact-card__body {
    margin-top: 17px;
    grid-template-columns: 124px minmax(0, 1fr);
    gap: 14px;
  }

  .round6-capabilities,
  .round6-collaboration,
  .round6-about-section {
    padding-block: 58px;
  }

  .round6-capabilities__grid,
  .round6-current-capabilities__grid {
    margin-top: 30px;
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .round6-capability:last-child,
  .round6-current-capability:last-child {
    grid-column: auto;
  }

  .round6-capability__media {
    aspect-ratio: 3 / 2;
  }

  .round6-collaboration__heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .round6-project-page .round6-collaboration__grid {
    grid-template-columns: 1fr;
  }

  .round6-project-page .round6-collaboration .cooperation-entry {
    min-height: 220px;
    padding: 24px;
  }

  .round6-team__profiles,
  .round6-public-build {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .round6-about-hero__grid {
    gap: 34px;
  }

  .round6-about-stats h2 {
    margin-bottom: 14px;
  }

  .round6-about-stats__grid > a {
    min-height: 92px;
    padding: 15px 16px;
  }

  .round6-team-card {
    grid-template-columns: 78px minmax(0, 1fr);
  }

  .round6-current-capability {
    min-height: 180px;
  }

  .round6-public-build > a,
  .round6-public-build > a:last-child {
    min-height: 138px;
    border-right: 1px solid var(--r6-line);
    border-bottom: 1px solid var(--r6-line);
  }

  .round6-public-build > a:nth-child(even) {
    border-right: 0;
  }

  .round6-public-build > a:nth-child(n + 3) {
    border-bottom: 0;
  }

  .round6-about-cta__inner {
    align-items: start;
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .round6-about-cta__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .round6-primary-link,
  .round6-secondary-link {
    width: 100%;
  }

  .round6-project-page .cooperation-detail-shell {
    z-index: 150;
    top: 0;
  }
}

@media (max-width: 420px) {
  .round6-contact-card__body {
    grid-template-columns: 116px minmax(0, 1fr);
  }

  .round6-contact-primary {
    padding-inline: 8px;
    font-size: 12px;
  }

  .round6-team__profiles {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html[data-round6-contact-about] *,
  html[data-round6-contact-about] *::before,
  html[data-round6-contact-about] *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .round6-motion-ready .round6-contact-card,
  .round6-motion-ready .round6-reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}