.page-about {
  --page-paper: #181818;
  --page-paper-raise: #1d1d1d;
  --page-line-faint: rgba(255, 255, 255, 0.07);
  --page-line-gold: rgba(255, 215, 0, 0.22);
  --page-red-deep: #8B0000;
  background: #121212;
  color: var(--pure-white);
}

.page-about .page-header {
  position: relative;
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--page-line-gold);
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(160deg, #1b0a0a 0%, #121212 62%, #191300 100%);
  background-size:
    26px 26px,
    26px 26px,
    100% 100%;
  overflow: hidden;
}

.page-about .page-header::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 180px;
  background: linear-gradient(120deg, transparent, rgba(213, 0, 0, 0.16));
  clip-path: polygon(12% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #999;
  margin-bottom: 28px;
  position: relative;
  z-index: 2;
}

.page-about .breadcrumb a {
  color: #FFC107;
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  text-decoration: underline;
}

.page-about .breadcrumb-sep {
  color: #666;
}

.page-about .about-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-hero-side {
  display: none;
}

.page-about .hero-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #FFC107;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.page-about .page-title {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 8vw, 4.8rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--pure-white);
}

.page-about .page-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-red), var(--milano-gold));
  margin-top: 14px;
}

.page-about .page-description {
  max-width: 560px;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--soft-white);
}

.page-about .about-hero-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

.page-about .hero-block {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: 13px;
  color: #aaa;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 10px;
}

.page-about .hero-block b {
  font-size: 20px;
  color: var(--milano-gold);
}

.page-about .about-toc {
  position: sticky;
  top: var(--header-height);
  z-index: 30;
  padding: 12px 0;
  background: rgba(18, 18, 18, 0.94);
  border-bottom: 1px solid var(--page-line-faint);
}

.page-about .about-toc .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  overflow: hidden;
}

.page-about .toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.page-about .toc-link {
  font-size: 14px;
  color: #bbb;
  text-decoration: none;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.page-about .toc-link:hover {
  color: var(--milano-gold);
}

.page-about .toc-link.is-active {
  color: var(--pure-white);
  border-bottom-color: var(--milano-gold);
}

.page-about .toc-coord {
  display: none;
  font-family: monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #777;
  white-space: nowrap;
}

.page-about .section {
  position: relative;
  padding: 64px 0 68px;
}

.page-about .section-title-row {
  display: flex;
  align-items: flex-start;
  gap: 0 18px;
  margin-bottom: 26px;
}

.page-about .section-number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 7vw, 4.8rem);
  font-weight: 900;
  font-style: italic;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: rgba(213, 0, 0, 0.32);
  flex-shrink: 0;
}

.page-about .section-heading {
  margin: 8px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--milano-gold);
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--pure-white);
}

.page-about .section-side-note {
  display: none;
  margin-left: auto;
  align-self: flex-end;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #888;
  text-transform: uppercase;
  white-space: nowrap;
}

.page-about .section-intro {
  max-width: 680px;
  margin: 0 0 30px;
  padding-left: clamp(0px, 12%, 76px);
  font-size: 15px;
  line-height: 1.8;
  color: #d8d8d8;
}

.page-about a {
  color: var(--line-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 193, 7, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about a:hover {
  color: var(--milano-gold);
  border-bottom-color: var(--milano-gold);
}

.page-about .dossier-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .dossier-paper {
  position: relative;
  padding: 28px 24px 26px;
  background: linear-gradient(165deg, #1c1c1c 0%, #141414 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-top: 4px solid var(--brand-red);
  box-shadow:
    0 16px 32px rgba(0, 0, 0, 0.42),
    4px 4px 0 rgba(255, 215, 0, 0.08);
}

.page-about .dossier-paper::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 84px;
  height: 84px;
  background: linear-gradient(135deg, transparent 49%, rgba(213, 0, 0, 0.22) 50%);
  pointer-events: none;
}

.page-about .dossier-kicker {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: #FFC107;
  text-transform: uppercase;
}

.page-about .dossier-title {
  margin: 10px 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3.6vw, 2.1rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1.25;
  color: var(--pure-white);
}

.page-about .dossier-lead {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--soft-white);
}

.page-about .dossier-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #c5c5c5;
}

.page-about .dossier-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .fact-cell {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 215, 0, 0.14);
  border-left-color: var(--brand-red);
  border-left-width: 2px;
}

.page-about .fact-cell dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #999;
}

.page-about .fact-cell dd {
  margin: 6px 0 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: 21px;
  line-height: 1;
  color: var(--milano-gold);
}

.page-about .dossier-side {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-about .dossier-stamp {
  position: absolute;
  top: -20px;
  right: 0;
  z-index: 2;
  width: 76px;
  height: 76px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: #FF5252;
  background: rgba(18, 18, 18, 0.85);
  border: 2px solid #D50000;
  box-shadow: 0 0 0 3px rgba(18, 18, 18, 0.6);
  transform: rotate(8deg);
}

.page-about .dossier-figure {
  margin: 0;
  padding: 8px;
  background: #151515;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.page-about .dossier-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .dossier-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-align: right;
  color: #777;
}

.page-about .dossier-coord {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
  font-family: monospace;
  font-size: 12px;
  color: #777;
}

.page-about .about-trajectory {
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    #131313;
  background-size:
    28px 28px,
    28px 28px,
    auto;
  border-top: 1px solid var(--page-line-gold);
  border-bottom: 1px solid var(--page-line-gold);
}

.page-about .trajectory-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .trajectory-item {
  position: relative;
  padding: 18px 16px 16px 20px;
  background: rgba(30, 30, 30, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid var(--brand-red);
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-about .trajectory-item:hover {
  transform: translateY(-3px);
  background: rgba(38, 38, 38, 0.9);
  border-color: rgba(255, 215, 0, 0.4);
}

.page-about .trajectory-year {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-style: italic;
  font-size: 28px;
  line-height: 1;
  color: var(--milano-gold);
}

.page-about .trajectory-version {
  display: inline-block;
  margin: 8px 0 8px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--pure-white);
  background: var(--brand-red);
}

.page-about .trajectory-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  color: var(--pure-white);
}

.page-about .trajectory-item p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: #aaaaaa;
}

.page-about .trajectory-figure {
  margin: 32px 0 0;
  padding: 8px;
  background: #121212;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.page-about .trajectory-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .trajectory-figure figcaption {
  margin-top: 8px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #777;
}

.page-about .about-architecture {
  background: #151515;
  border-top: 1px solid var(--page-line-gold);
  border-bottom: 1px solid var(--page-line-gold);
}

.page-about .architecture-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .architecture-visual {
  position: relative;
  align-self: start;
  padding: 10px;
  background: #161616;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .architecture-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-about .visual-grid-label {
  position: absolute;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  font-family: monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: #999;
  background: rgba(18, 18, 18, 0.6);
  padding: 4px 8px;
}

.page-about .architecture-modules {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .module-card {
  display: flex;
  gap: 14px;
  padding: 18px;
  background: #1a1a1a;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-left: 2px solid rgba(213, 0, 0, 0.65);
  transition: border-left-color 0.2s ease, background-color 0.2s ease;
}

.page-about .module-card:hover {
  border-left-color: var(--milano-gold);
  background: #1f1f1f;
}

.page-about .module-index {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 900;
  font-size: 30px;
  line-height: 1;
  color: rgba(213, 0, 0, 0.6);
}

.page-about .module-content h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 800;
  color: var(--pure-white);
}

.page-about .module-content p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: #b9b9b9;
}

.page-about .architecture-footer-note {
  margin: 26px 0 0;
  padding-left: clamp(0px, 12%, 76px);
  font-size: 14px;
  line-height: 1.8;
  color: #aaa;
}

.page-about .about-scope {
  background:
    radial-gradient(circle at 85% 12%, rgba(213, 0, 0, 0.16), transparent 34%),
    #121212;
}

.page-about .scope-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 32px;
}

.page-about .scope-card {
  position: relative;
  overflow: hidden;
  padding: 20px 18px 18px;
  background: #191919;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .scope-card::after {
  content: "";
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 110px;
  height: 110px;
  background: rgba(213, 0, 0, 0.12);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .scope-number {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #FFC107;
}

.page-about .scope-card h3 {
  margin: 8px 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--pure-white);
}

.page-about .scope-card p {
  margin: 0;
  max-width: 85%;
  font-size: 13px;
  line-height: 1.75;
  color: #bcbcbc;
}

.page-about .scope-commitment {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  padding: 24px 20px;
  background: linear-gradient(130deg, rgba(139, 0, 0, 0.2), rgba(18, 18, 18, 0.92));
  border: 1px solid rgba(255, 215, 0, 0.28);
}

.page-about .commitment-seal {
  flex-shrink: 0;
  width: 78px;
  height: 78px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 13px;
  line-height: 1.5;
  color: var(--milano-gold);
  border: 2px solid var(--milano-gold);
  transform: rotate(-6deg);
  background: rgba(18, 18, 18, 0.6);
}

.page-about .commitment-content {
  min-width: 0;
}

.page-about .commitment-content h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--pure-white);
}

.page-about .commitment-content p {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.85;
  color: #cccccc;
}

.page-about .commitment-meta {
  color: #999 !important;
  font-size: 12px !important;
  letter-spacing: 0.04em !important;
}

.page-about .commitment-links {
  margin-top: 10px !important;
}

@media (min-width: 768px) {
  .page-about .dossier-facts {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .trajectory-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-about .trajectory-item {
    min-height: 190px;
  }

  .page-about .scope-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-about .scope-card p {
    max-width: 75%;
  }

  .page-about .toc-coord {
    display: block;
  }

  .page-about .section-side-note {
    display: block;
  }
}

@media (min-width: 992px) {
  .page-about .page-header {
    padding: 54px 0 48px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 64px minmax(0, 1fr) auto;
    align-items: end;
    gap: 24px;
  }

  .page-about .about-hero-side {
    display: flex;
  }

  .page-about .hero-side-rot {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.22em;
    color: #FFC107;
    white-space: nowrap;
    align-self: flex-start;
  }

  .page-about .about-hero-index {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-top: 0;
  }

  .page-about .hero-block {
    justify-content: space-between;
    min-width: 84px;
  }

  .page-about .section {
    padding: 84px 0 88px;
  }

  .page-about .section-number {
    font-size: 5.2rem;
    margin-right: 8px;
  }

  .page-about .dossier-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
    gap: 44px;
    align-items: stretch;
  }

  .page-about .dossier-paper {
    padding: 34px 32px 30px;
  }

  .page-about .dossier-figure {
    height: auto;
  }

  .page-about .trajectory-list {
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
  }

  .page-about .trajectory-item {
    min-height: 240px;
    padding: 16px 14px;
    border-left: 0;
    border-top: 3px solid #D50000;
    background: rgba(30, 30, 30, 0.5);
  }

  .page-about .trajectory-item + .trajectory-item {
    border-left: 1px dashed rgba(255, 255, 255, 0.16);
  }

  .page-about .trajectory-item:hover {
    transform: translateY(-4px);
    background: rgba(44, 44, 44, 0.85);
  }

  .page-about .trajectory-year {
    font-size: 24px;
  }

  .page-about .architecture-grid {
    grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.15fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .architecture-image {
    min-height: 100%;
    object-fit: cover;
  }

  .page-about .scope-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }

  .page-about .scope-card p {
    max-width: 90%;
  }

  .page-about .scope-commitment {
    padding: 30px 34px;
    gap: 36px;
  }

  .page-about .commitment-seal {
    width: 92px;
    height: 92px;
    font-size: 15px;
  }
}