.page-about {
  background: #0A1428;
  color: #FFFFFF;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-headline);
  margin-top: 0;
}

.page-about p {
  margin-top: 0;
}

.page-about .section-kicker {
  font-family: var(--font-caption);
  font-size: 0.8125rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--yellow);
  margin: 0 0 0.6rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-about .section-kicker::after {
  content: "";
  width: 2.5rem;
  height: 2px;
  background: currentColor;
  transform: skewX(-35deg);
  display: inline-block;
}

.page-about .about-vision .section-kicker,
.page-about .about-tech .section-kicker,
.page-about .about-commitment .section-kicker {
  color: var(--data-blue);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 4.25rem 0 5.5rem;
  background: radial-gradient(circle at 85% 20%, rgba(0,255,136,0.16), transparent 34%), linear-gradient(135deg, #0A1428 0%, #12294A 65%, #1E3A5F 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10,20,40,0.5) 0%, rgba(10,20,40,0.15) 55%, rgba(10,20,40,0.35) 100%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2rem;
  height: 4rem;
  background: #F5F7FA;
  transform: skewY(-2deg);
  z-index: 3;
  pointer-events: none;
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  z-index: 0;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
}

.page-about .about-hero .breadcrumb {
  font-family: var(--font-caption);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.68);
  margin-bottom: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(255,255,255,0.68);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--yellow);
}

.page-about .about-hero__kicker {
  font-family: var(--font-caption);
  font-size: 0.8125rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 1rem;
  padding-left: 1.5rem;
  position: relative;
}

.page-about .about-hero__kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1rem;
  height: 2px;
  background: var(--green);
  transform: skewX(-45deg);
}

.page-about .about-hero h1 {
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  line-height: 1.08;
  margin-bottom: 1.25rem;
  max-width: 12em;
  letter-spacing: -0.02em;
  color: #FFFFFF;
}

.page-about .about-hero__statement {
  font-family: var(--font-numbers);
  font-size: clamp(0.9375rem, 2.4vw, 1.375rem);
  color: var(--yellow);
  border-left: 4px solid var(--yellow);
  padding-left: 1rem;
  margin-bottom: 1.5rem;
  transform: skewX(-4deg);
}

.page-about .about-hero__lede {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.78);
  max-width: 34em;
  margin-bottom: 2.5rem;
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
}

.page-about .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.page-about .hero-stat__num {
  font-family: var(--font-numbers);
  font-size: 2rem;
  line-height: 1;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.page-about .hero-stat__unit {
  color: var(--green);
  font-size: 0.8em;
  margin-left: 0.15em;
}

.page-about .hero-stat__label {
  font-family: var(--font-caption);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

.page-about .about-hero__speedline {
  position: absolute;
  right: -10%;
  bottom: 2.5rem;
  width: 70%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--yellow), var(--green));
  transform: skewX(-18deg);
  opacity: 0.7;
  z-index: 3;
  pointer-events: none;
}

.page-about .about-hero__speedline::after {
  content: "";
  position: absolute;
  top: -0.75rem;
  right: 12%;
  width: 2.25rem;
  height: 2.25rem;
  border: 2px solid var(--yellow);
  transform: rotate(45deg) skewX(8deg);
  opacity: 0.5;
}

.page-about .about-vision {
  background: #F5F7FA;
  color: #0A1428;
  padding: 4.5rem 0;
}

.page-about .about-vision__grid {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-vision__copy h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  line-height: 1.25;
  margin-bottom: 1.25rem;
  color: #0A1428;
}

.page-about .about-vision__copy p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: #5A6B7C;
  margin-bottom: 1rem;
}

.page-about .about-vision__quote {
  margin: 1.5rem 0 0;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--yellow);
  background: rgba(255,196,0,0.1);
  font-family: var(--font-headline);
  font-weight: 600;
  color: #0A1428;
  font-size: 1.05rem;
  line-height: 1.6;
}

.page-about .about-vision__quote::before,
.page-about .about-vision__quote::after {
  content: "";
}

.page-about .vision-principles {
  display: grid;
  gap: 0.875rem;
  align-content: start;
}

.page-about .vision-principle {
  background: #FFFFFF;
  border: 1px solid rgba(10,20,40,0.06);
  border-left: 3px solid var(--yellow);
  padding: 1.25rem;
  box-shadow: 0 8px 24px rgba(10,20,40,0.05);
  position: relative;
}

.page-about .vision-principle__index {
  font-family: var(--font-numbers);
  color: var(--yellow);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.5rem;
}

.page-about .vision-principle h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  color: #0A1428;
}

.page-about .vision-principle p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #5A6B7C;
  margin-bottom: 0;
}

.page-about .about-milestones {
  background: linear-gradient(165deg, #0A1428 0%, #12294A 70%, #1E3A5F 100%);
  color: #FFFFFF;
  padding: 5rem 0 5.5rem;
  position: relative;
}

.page-about .about-milestones__header {
  max-width: 640px;
}

.page-about .about-milestones__header h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 1rem;
  color: #FFFFFF;
}

.page-about .about-milestones__intro {
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}

.page-about .about-milestones__content {
  display: grid;
  gap: 2.75rem;
}

.page-about .milestone-list {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.page-about .milestone-list::before {
  content: "";
  position: absolute;
  left: 2.25rem;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 2px;
  background: linear-gradient(180deg, var(--green), var(--yellow) 60%, rgba(255,255,255,0.16));
}

.page-about .milestone-item {
  position: relative;
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.25rem;
}

.page-about .milestone-item::before {
  content: "";
  position: absolute;
  left: calc(2.25rem - 4px);
  top: 1.55rem;
  width: 0.6rem;
  height: 0.6rem;
  background: var(--green);
  transform: rotate(45deg);
  z-index: 2;
  box-shadow: 0 0 0 4px rgba(0,255,136,0.15);
}

.page-about .milestone-year {
  font-family: var(--font-numbers);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--yellow);
  background: rgba(255,196,0,0.08);
  border: 1px solid rgba(255,196,0,0.35);
  padding: 0.5rem 0.25rem;
  text-align: center;
  transform: skewX(-6deg);
  align-self: start;
  border-radius: 0.25rem;
}

.page-about .milestone-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-left: 3px solid rgba(0,255,136,0.55);
  padding: 1.1rem;
  border-radius: 0.375rem;
}

.page-about .milestone-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: #FFFFFF;
}

.page-about .milestone-card p {
  margin-bottom: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.72);
}

.page-about .milestone-card details {
  margin-top: 0.75rem;
  border-top: 1px dashed rgba(255,255,255,0.2);
  padding-top: 0.6rem;
}

.page-about .milestone-card summary {
  cursor: pointer;
  font-size: 0.8125rem;
  color: var(--green);
  font-family: var(--font-caption);
  list-style: none;
  transition: color 0.2s ease;
}

.page-about .milestone-card summary::-webkit-details-marker {
  display: none;
}

.page-about .milestone-card summary:hover {
  color: var(--yellow);
}

.page-about .milestone-card summary::before {
  content: "+";
  display: inline-block;
  margin-right: 0.4rem;
  font-family: var(--font-numbers);
  color: var(--yellow);
}

.page-about .milestone-card details[open] summary {
  margin-bottom: 0.45rem;
}

.page-about .milestone-card details[open] summary::before {
  content: "–";
}

.page-about .milestone-card details p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
}

.page-about .milestone-item--highlight .milestone-year {
  background: var(--yellow);
  color: var(--blue-900);
  border-color: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255,196,0,0.15);
}

.page-about .milestone-item--highlight::before {
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255,196,0,0.15);
}

.page-about .milestone-item--highlight .milestone-card {
  border-left-color: var(--yellow);
  background: rgba(255,196,0,0.05);
}

.page-about .about-milestones__chart {
  margin: 0;
  padding: 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 0.5rem;
}

.page-about .about-milestones__chart img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.25rem;
}

.page-about .about-milestones__chart .media-caption {
  margin-top: 0.75rem;
  color: rgba(255,255,255,0.6);
  font-size: 0.8125rem;
  line-height: 1.6;
}

.page-about .about-tech {
  background: #F5F7FA;
  color: #0A1428;
  padding: 5rem 0;
}

.page-about .about-tech__inner {
  max-width: 860px;
}

.page-about .about-tech h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  margin-bottom: 1rem;
  color: #0A1428;
}

.page-about .about-tech__lede {
  font-size: 1rem;
  line-height: 1.75;
  color: #5A6B7C;
  max-width: 36em;
  margin-bottom: 2.5rem;
}

.page-about .about-tech__grid {
  display: grid;
  gap: 1rem;
}

.page-about .tech-block {
  background: #FFFFFF;
  border: 1px solid rgba(10,20,40,0.08);
  border-top: 4px solid var(--blue-500);
  padding: 1.4rem;
  box-shadow: 0 10px 30px rgba(10,20,40,0.05);
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .tech-block:nth-child(1) {
  border-top-color: var(--green);
}

.page-about .tech-block:nth-child(2) {
  border-top-color: var(--yellow);
}

.page-about .tech-block:nth-child(3) {
  border-top-color: var(--data-blue);
}

.page-about .tech-block:nth-child(4) {
  border-top-color: var(--data-purple);
}

.page-about .tech-block:hover {
  transform: translateY(-4px) skewX(-1deg);
  box-shadow: 0 16px 36px rgba(10,20,40,0.1);
}

.page-about .tech-block__num {
  font-family: var(--font-numbers);
  font-size: 2.6rem;
  line-height: 1;
  color: #0A1428;
  display: block;
  letter-spacing: -0.03em;
}

.page-about .tech-block__unit {
  font-size: 1rem;
  color: #5A6B7C;
  margin-left: 0.2em;
}

.page-about .tech-block h3 {
  font-size: 1.1rem;
  margin: 0.75rem 0 0.5rem;
  color: #0A1428;
}

.page-about .tech-block p {
  font-size: 0.875rem;
  color: #5A6B7C;
  line-height: 1.7;
  margin-bottom: 0;
}

.page-about .about-tech__note {
  margin-top: 2.5rem;
  padding: 1.1rem 1.25rem;
  background: #0A1428;
  color: rgba(255,255,255,0.82);
  border-left: 5px solid var(--yellow);
  font-size: 0.9rem;
  line-height: 1.75;
  transform: skewX(-2deg);
}

.page-about .about-team {
  background: linear-gradient(155deg, #0A1428 0%, #12294A 70%, #1E3A5F 100%);
  color: #FFFFFF;
  padding: 5rem 0;
}

.page-about .about-team__grid {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-team__copy h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  margin-bottom: 1.1rem;
  color: #FFFFFF;
}

.page-about .about-team__copy > p {
  color: rgba(255,255,255,0.72);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 0.875rem;
}

.page-about .about-team__list li {
  padding-left: 1.25rem;
  border-left: 3px solid var(--green);
  color: rgba(255,255,255,0.78);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-about .about-team__list li strong {
  color: #FFFFFF;
  font-weight: 600;
  margin-right: 0.25rem;
}

.page-about .about-team__list li strong::after {
  content: "：";
}

.page-about .about-team__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.page-about .about-team__stats span {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 0.45rem 0.85rem;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.85);
  border-radius: 0.25rem;
}

.page-about .about-team__stats b {
  font-family: var(--font-numbers);
  color: var(--yellow);
  font-size: 1.1rem;
  margin-right: 0.3rem;
}

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.375rem;
  border: 1px solid rgba(255,255,255,0.12);
}

.page-about .about-team__figure .media-caption {
  color: rgba(255,255,255,0.6);
  font-size: 0.8125rem;
  margin-top: 0.75rem;
  line-height: 1.6;
}

.page-about .about-commitment {
  background: #F5F7FA;
  color: #0A1428;
  padding: 5rem 0;
}

.page-about .about-commitment h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.6rem);
  margin-bottom: 1.5rem;
  color: #0A1428;
}

.page-about .about-commitment__grid {
  display: grid;
  gap: 1rem;
}

.page-about .commitment-card {
  background: #FFFFFF;
  border: 1px solid rgba(10,20,40,0.07);
  border-left: 5px solid var(--blue-500);
  padding: 1.4rem;
  box-shadow: 0 8px 24px rgba(10,20,40,0.05);
  position: relative;
  overflow: hidden;
}

.page-about .commitment-card:nth-child(1) {
  border-left-color: var(--green);
}

.page-about .commitment-card:nth-child(2) {
  border-left-color: var(--yellow);
}

.page-about .commitment-card:nth-child(3) {
  border-left-color: var(--data-blue);
}

.page-about .commitment-card:nth-child(4) {
  border-left-color: var(--data-purple);
}

.page-about .commitment-card__index {
  font-family: var(--font-numbers);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: #5A6B7C;
  display: block;
  margin-bottom: 0.75rem;
}

.page-about .commitment-card h3 {
  margin-bottom: 0.55rem;
  font-size: 1.15rem;
  color: #0A1428;
}

.page-about .commitment-card p {
  margin-bottom: 0;
  font-size: 0.875rem;
  color: #5A6B7C;
  line-height: 1.7;
}

.page-about .about-next {
  background: linear-gradient(150deg, #0A1428 0%, #1E3A5F 100%);
  color: #FFFFFF;
  padding: 4rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.page-about .about-next::before {
  content: "";
  position: absolute;
  right: -12%;
  top: -20%;
  width: 60%;
  height: 100%;
  border: 1px solid rgba(255,255,255,0.12);
  transform: rotate(18deg) skewX(-8deg);
  pointer-events: none;
}

.page-about .about-next__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-next__title {
  font-family: var(--font-headline);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 1.75rem;
  color: #FFFFFF;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-about .about-next__links .btn-ghost {
  border-color: rgba(255,255,255,0.45);
  color: #FFFFFF;
}

.page-about .about-next__links .btn-ghost:hover {
  border-color: var(--yellow);
  color: var(--yellow);
}

@media (min-width: 560px) and (max-width: 899px) {
  .page-about .vision-principles {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 700px) {
  .page-about .about-tech__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .page-about .about-commitment__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-vision__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
  }

  .page-about .vision-principles {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 960px) {
  .page-about .about-milestones__content {
    grid-template-columns: 1fr 0.72fr;
    align-items: start;
    gap: 3.5rem;
  }

  .page-about .about-milestones__chart {
    position: sticky;
    top: 7rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 4rem;
  }
}