.page-about {
  --promise-text-clamp: 4.2rem;
  min-height: 65vh;
}

.page-about__hero {
  background-color: var(--primary-bg);
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
  padding: 1.6rem 0 2.2rem;
}

.page-about__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.55;
  pointer-events: none;
}

.page-about__hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 14px;
  background: linear-gradient(105deg, var(--accent-neon) 0 68%, transparent 68.5%);
  transform: skewY(-1.1deg);
  pointer-events: none;
}

.page-about__hero-inner {
  position: relative;
  z-index: 1;
}

.page-about__hero .breadcrumb {
  margin-bottom: 1.6rem;
}

.page-about__hero .breadcrumb__link {
  color: var(--text-muted);
  text-decoration: none;
}

.page-about__hero .breadcrumb__link:hover {
  color: var(--accent-neon);
}

.page-about__hero .breadcrumb__link[aria-current="page"] {
  color: var(--accent-gold);
}

.page-about__hero-layout {
  display: grid;
  gap: 1rem;
  padding-top: 0.6rem;
}

.page-about__hero-aside {
  display: none;
}

.page-about__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: var(--accent-neon);
  text-transform: uppercase;
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-about__eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--accent-neon);
}

.page-about__title {
  margin: 0;
  max-width: 13em;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--text-primary);
}

.page-about__hero-tagline {
  margin: 1.2rem 0 1.4rem;
  max-width: 46em;
  font-size: clamp(0.98rem, 1.4vw, 1.15rem);
  line-height: 1.85;
  color: var(--text-primary);
  opacity: 0.88;
}

.page-about__hero-em {
  color: var(--accent-gold);
  font-style: normal;
  font-weight: 700;
}

.page-about__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.4rem;
}

.page-about__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.page-about__meta-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-neon);
  box-shadow: 0 0 0 3px rgba(0, 255, 157, 0.15);
}

.page-about__hero-code {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid rgba(0, 255, 157, 0.4);
  background: var(--surface-glass);
  padding: 1.5rem 1.8rem;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--text-primary);
  backdrop-filter: blur(6px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about__hero-code-top {
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--text-muted);
}

.page-about__hero-code-main {
  font-size: clamp(1.6rem, 2.5vw, 2.1rem);
  font-weight: 900;
  color: var(--accent-neon);
  letter-spacing: 0.16em;
}

.page-about__hero-code-foot {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--accent-gold);
}

.page-about__section-head {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 0.4rem;
}

.page-about__section-num {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-neon);
  background: rgba(0, 255, 157, 0.1);
  border: 1px solid rgba(0, 255, 157, 0.3);
  padding: 0.25rem 0.5rem;
  white-space: nowrap;
}

.page-about__section-num--ghost {
  color: var(--text-muted);
  background: transparent;
  border: 1px dashed rgba(0, 255, 157, 0.4);
}

.page-about__section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--text-on-light);
}

.page-about__section-title--light {
  color: var(--text-primary);
}

.page-about__section-line {
  flex: 1;
  height: 2px;
  min-width: 24px;
  background: linear-gradient(90deg, var(--accent-neon), transparent 78%);
}

.page-about__section-line--gold {
  background: linear-gradient(90deg, var(--accent-gold), transparent 82%);
}

.page-about__section-sub {
  margin: 0 0 1.8rem;
  font-size: 0.98rem;
  color: var(--text-muted-light);
  max-width: 52em;
}

.page-about__section-sub--light {
  color: var(--text-muted);
}

.page-about__timeline-section {
  background-color: var(--surface-light);
  position: relative;
  overflow: hidden;
  padding: 3.2rem 0 4rem;
}

.page-about__timeline-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(48, 168, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 168, 255, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-about__timeline-section .container {
  position: relative;
  z-index: 1;
}

.page-about__timeline-inner {
  display: grid;
  gap: 1.8rem;
  align-items: start;
  background: #fff;
  border: 1px solid rgba(26, 45, 74, 0.08);
  box-shadow: 0 20px 45px -26px rgba(26, 45, 74, 0.22);
  padding: clamp(1.2rem, 2.2vw, 1.8rem);
}

.page-about__timeline-art {
  margin: 0;
  position: relative;
}

.page-about__timeline-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  display: block;
  border: 1px solid rgba(26, 45, 74, 0.12);
  filter: saturate(0.92) contrast(1.05);
}

.page-about__timeline-caption {
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--text-muted-light);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-about__timeline-caption::before {
  content: "●";
  color: var(--accent-neon);
  font-size: 0.55rem;
}

.page-about__timeline-list {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0 0;
  position: relative;
}

.page-about__timeline-list::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-neon) 0%, rgba(48, 168, 255, 0.25) 35%, rgba(26, 45, 74, 0.12) 85%);
}

.page-about__timeline-item {
  position: relative;
  padding: 0 0 2rem 2rem;
}

.page-about__timeline-item:last-child {
  padding-bottom: 0;
}

.page-about__timeline-item::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.15rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent-neon);
  box-shadow: 0 0 0 4px rgba(0, 255, 157, 0.18);
  z-index: 1;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}

.page-about__timeline-item:hover::before,
.page-about__timeline-item:focus-within::before {
  transform: scale(1.18);
  box-shadow: 0 0 0 7px rgba(0, 255, 157, 0.16);
}

.page-about__timeline-time {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.4rem;
}

.page-about__timeline-card {
  position: relative;
  background: #fff;
  border: 1px solid rgba(26, 45, 74, 0.08);
  border-left: 3px solid var(--accent-neon);
  padding: 1rem 1.2rem 1.1rem;
  transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
}

.page-about__timeline-card::before {
  content: "";
  position: absolute;
  top: 12px;
  left: -7px;
  width: 12px;
  height: 12px;
  background: #fff;
  border-left: 1px solid rgba(26, 45, 74, 0.1);
  border-bottom: 1px solid rgba(26, 45, 74, 0.1);
  transform: rotate(45deg);
  border-radius: 1px;
}

.page-about__timeline-item:hover .page-about__timeline-card,
.page-about__timeline-item:focus-within .page-about__timeline-card {
  transform: translateX(6px);
  box-shadow: 0 12px 28px rgba(26, 45, 74, 0.12);
  border-color: rgba(0, 255, 157, 0.4);
}

.page-about__timeline-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--label-stroke);
  border: 1px solid var(--label-stroke);
  padding: 0.14rem 0.46rem;
  margin-bottom: 0.65rem;
  text-transform: uppercase;
}

.page-about__timeline-card-title {
  margin: 0 0 0.55rem;
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--text-on-light);
}

.page-about__timeline-card-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(26, 45, 74, 0.72);
}

.page-about__philosophy {
  background-color: var(--primary-bg);
  position: relative;
  overflow: hidden;
  padding: 3.4rem 0 4rem;
  color: var(--text-primary);
}

.page-about__philosophy::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 255, 157, 0.1), transparent 62%);
  pointer-events: none;
}

.page-about__philosophy::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 30px 30px;
  opacity: 0.32;
  pointer-events: none;
}

.page-about__philosophy-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.page-about__philosophy-side {
  position: relative;
}

.page-about__philosophy-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  font-weight: 900;
  line-height: 1.25;
  margin: 1.1rem 0 1.4rem;
  color: var(--text-primary);
}

.page-about__philosophy-mark {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--text-muted);
}

.page-about__philosophy-main {
  display: grid;
  gap: 1.6rem;
}

.page-about__philosophy-lead {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.75;
  font-weight: 400;
  color: var(--text-primary);
}

.page-about__philosophy-grid {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 1fr;
}

.page-about__philosophy-item {
  background: var(--surface-glass);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.2rem 1.2rem 1.3rem;
  position: relative;
  transition: transform var(--t-base), border-color var(--t-base), background-color var(--t-base);
}

.page-about__philosophy-item:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 157, 0.35);
  background: rgba(255, 255, 255, 0.12);
}

.page-about__philosophy-item-title {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent-neon);
}

.page-about__philosophy-item-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about__data {
  background-color: var(--surface-light);
  padding: 3.2rem 0 4rem;
}

.page-about__data-wrap {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  background: #fff;
  border: 1px solid rgba(26, 45, 74, 0.08);
  box-shadow: 0 20px 45px -26px rgba(26, 45, 74, 0.18);
  padding: clamp(1.1rem, 2vw, 1.6rem);
}

.page-about__data-table-wrap {
  overflow-x: auto;
}

.page-about__data-table {
  width: 100%;
  border-collapse: collapse;
  border: 2px solid rgba(26, 45, 74, 0.4);
  background: #fff;
  min-width: 430px;
}

.page-about__data-caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--text-muted-light);
  padding-bottom: 0.6rem;
}

.page-about__data-table th,
.page-about__data-table td {
  padding: 0.85rem 1rem;
  border: 1px solid rgba(26, 45, 74, 0.1);
  text-align: left;
  vertical-align: top;
}

.page-about__data-table th {
  background: var(--primary-bg);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
}

.page-about__data-table td {
  font-size: 0.89rem;
  color: var(--text-on-light);
  line-height: 1.5;
}

.page-about__data-table tbody tr:hover > td {
  background: rgba(0, 255, 157, 0.07);
}

.page-about__data-table tbody tr td:first-child {
  font-weight: 700;
}

.page-about__data-table tbody tr td:nth-child(2) {
  font-family: var(--font-mono);
  color: var(--primary-bg);
  font-weight: 700;
  white-space: nowrap;
}

.page-about__data-visual {
  align-self: center;
}

.page-about__data-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(26, 45, 74, 0.1);
}

.page-about__honors {
  background-color: var(--primary-bg);
  position: relative;
  overflow: hidden;
  padding: 3.4rem 0 4rem;
}

.page-about__honors::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.26;
  pointer-events: none;
}

.page-about__honors .container {
  position: relative;
  z-index: 1;
}

.page-about__honors-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1fr;
}

.page-about__honor-stamp {
  position: relative;
  border: 1px solid rgba(245, 184, 0, 0.42);
  background: rgba(255, 255, 255, 0.03);
  padding: 1.6rem 1.3rem 1.4rem;
  text-align: center;
  transition: transform var(--t-base), background-color var(--t-base);
}

.page-about__honor-stamp::before,
.page-about__honor-stamp::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--accent-gold);
  transition: transform var(--t-base);
}

.page-about__honor-stamp::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.page-about__honor-stamp::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
}

.page-about__honor-stamp:hover {
  transform: translateY(-4px) rotate(-0.5deg);
  background: rgba(255, 255, 255, 0.06);
}

.page-about__honor-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.1rem;
  border-radius: 50%;
  border: 2px dashed rgba(245, 184, 0, 0.65);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: 0.06em;
  box-shadow: inset 0 0 0 4px rgba(245, 184, 0, 0.08);
}

.page-about__honor-name {
  margin: 0 0 0.7rem;
  font-size: 1rem;
  line-height: 1.35;
  color: var(--text-primary);
  font-weight: 700;
}

.page-about__honor-desc {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.page-about__promises {
  background-color: var(--surface-light);
  padding: 3.2rem 0 4rem;
}

.page-about__promises-layout {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-about__promises-list {
  display: grid;
  gap: 0.9rem;
}

.page-about__promise-item {
  background: #fff;
  border: 1px solid rgba(26, 45, 74, 0.12);
  border-left: 3px solid var(--accent-neon);
  transition: box-shadow var(--t-base);
}

.page-about__promise-item[open] {
  box-shadow: 0 12px 32px rgba(26, 45, 74, 0.08);
}

.page-about__promise-head {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  list-style: none;
  cursor: pointer;
  padding: 1rem 1.2rem;
  user-select: none;
}

.page-about__promise-head::-webkit-details-marker {
  display: none;
}

.page-about__promise-head::after {
  content: "";
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-muted-light);
  border-bottom: 2px solid var(--text-muted-light);
  transform: rotate(45deg);
  transition: transform var(--t-fast);
}

.page-about__promise-item[open] .page-about__promise-head::after {
  transform: rotate(225deg);
}

.page-about__promise-status {
  flex: 0 0 auto;
}

.page-about__promise-code {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-muted-light);
  border: 1px solid rgba(26, 45, 74, 0.15);
  padding: 0.14rem 0.42rem;
  white-space: nowrap;
}

.page-about__promise-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-on-light);
  min-width: 0;
}

.page-about__promise-text {
  margin: 0;
  padding: 0 1.2rem 1.2rem var(--promise-text-clamp);
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(26, 45, 74, 0.72);
}

.page-about__promises-art {
  position: relative;
}

.page-about__promises-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid rgba(26, 45, 74, 0.12);
}

.page-about__promises-caption {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.page-about__promises-caption span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted-light);
  border: 1px solid rgba(26, 45, 74, 0.16);
  padding: 0.28rem 0.56rem;
  background: #fff;
}

.page-about__more {
  background-color: var(--primary-bg);
  color: var(--text-primary);
  padding: 2.6rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.page-about__more::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 34px 34px;
  opacity: 0.35;
  pointer-events: none;
}

.page-about__more-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
  text-align: center;
}

.page-about__more-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.page-about__more-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem 0.9rem;
}

.page-about__more-link {
  text-decoration: none;
  text-align: center;
}

.page-about__more .btn--ghost {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.4);
}

.page-about__more .btn--ghost:hover {
  color: var(--accent-neon);
  border-color: var(--accent-neon);
}

@media (min-width: 640px) {
  .page-about__hero {
    padding: 2rem 0 3rem;
  }

  .page-about__timeline-inner {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 2.2rem;
  }

  .page-about__data-wrap {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 0.75fr);
  }

  .page-about__data-wrap {
    align-items: center;
  }

  .page-about__honors-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__promise-text {
    --promise-text-clamp: 5.2rem;
  }
}

@media (min-width: 900px) {
  .page-about__hero-layout {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 340px);
    align-items: end;
    gap: 2rem;
  }

  .page-about__hero-aside {
    display: flex;
    justify-content: flex-end;
  }

  .page-about__philosophy-inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr);
    gap: 3rem;
  }

  .page-about__philosophy-side {
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    padding-right: 2.4rem;
  }

  .page-about__promises-layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: 2.6rem;
  }

  .page-about__promises-art {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }
}

@media (min-width: 1000px) {
  .page-about__honors-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}