.page-about {
  --about-line: rgba(212, 175, 55, 0.22);
  --about-line-strong: rgba(212, 175, 55, 0.4);
  --about-bg-soft: rgba(20, 41, 77, 0.4);
  --about-glow: 0 0 28px rgba(212, 175, 55, 0.16);
  --about-radius: 22px;
  background: var(--primary-bg);
  overflow-x: hidden;
}

.page-about__hero {
  position: relative;
  padding: 56px 0 64px;
  background:
    radial-gradient(ellipse at 88% 18%, rgba(212, 175, 55, 0.13) 0%, transparent 46%),
    radial-gradient(ellipse at 10% 90%, rgba(30, 58, 102, 0.6) 0%, transparent 55%);
  overflow: hidden;
}

.page-about__hero::after {
  content: "";
  position: absolute;
  right: -100px;
  top: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, 0.12);
  box-shadow:
    0 0 0 38px rgba(212, 175, 55, 0.03),
    0 0 0 76px rgba(212, 175, 55, 0.018);
  pointer-events: none;
}

.page-about__hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
}

.page-about__hero-copy {
  max-width: 760px;
}

.page-about__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
  font-size: 0.8rem;
  letter-spacing: 0.24em;
  color: var(--text-secondary);
  font-family: var(--font-sans);
}

.page-about__eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gold-accent);
}

.page-about__hero-title {
  margin: 22px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(2.1rem, 5vw, 3.8rem);
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.page-about__hero-title::after {
  content: "";
  display: block;
  width: 72px;
  height: 3px;
  margin-top: 26px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--gold-accent), rgba(212, 175, 55, 0.05));
}

.page-about__hero-lead {
  margin: 24px 0 30px;
  max-width: 640px;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.9;
  color: #cdc7ba;
}

.page-about__hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.page-about__hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-pill);
  background: rgba(20, 41, 77, 0.3);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.page-about__hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-accent);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.14);
}

.page-about__hero-script-box {
  display: none;
}

.page-about__section {
  position: relative;
  padding: 64px 0;
}

.page-about__section h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  line-height: 1.3;
  color: var(--text-primary);
}

.page-about__section-lead {
  margin: 14px 0 0;
  max-width: 680px;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.85;
  color: #c9c4b8;
}

.page-about__chapter {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.page-about__chapter-num {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--gold-accent);
  opacity: 0.9;
}

.page-about__chapter-line {
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, rgba(212, 175, 55, 0.7), rgba(212, 175, 55, 0.05));
}

.page-about__chapter-name {
  font-size: 0.85rem;
  letter-spacing: 0.22em;
  color: var(--text-secondary);
  font-family: var(--font-sans);
}

.page-about__chapter-link {
  margin-left: auto;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-decoration: none;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  transition: border-color var(--transition), color var(--transition);
}

.page-about__chapter-link:hover {
  border-color: var(--gold-accent);
  color: var(--gold-accent);
}

.page-about__origin {
  background: linear-gradient(180deg, rgba(10, 25, 48, 0) 0%, rgba(20, 41, 77, 0.18) 100%);
}

.page-about__origin-grid {
  display: grid;
  gap: 44px;
}

.page-about__origin-copy h2 {
  margin-bottom: 22px;
}

.page-about__origin-lead {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--text-primary);
  border-left: 3px solid var(--gold-accent);
  padding-left: 18px;
  margin: 0 0 18px;
}

.page-about__origin-text {
  font-size: 1rem;
  line-height: 1.85;
  color: #c9c4b8;
  margin: 0 0 24px;
}

.page-about__mission {
  margin: 0;
  padding: 20px 24px;
  border: 1px solid var(--about-line);
  border-radius: 18px;
  background: rgba(20, 41, 77, 0.3);
}

.page-about__mission p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--gold-accent);
  line-height: 1.7;
}

.page-about__principle-list {
  display: grid;
  gap: 14px;
}

.page-about__principle {
  position: relative;
  background: rgba(20, 41, 77, 0.35);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 26px 24px 24px 88px;
  transition: border-color var(--transition), transform var(--transition);
}

.page-about__principle:hover {
  border-color: rgba(212, 175, 55, 0.55);
  transform: translateY(-3px);
}

.page-about__principle-num {
  position: absolute;
  left: 24px;
  top: 26px;
  font-family: var(--font-serif);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--gold-accent);
  opacity: 0.75;
}

.page-about__principle h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-primary);
}

.page-about__principle p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about__history {
  background:
    radial-gradient(circle at 88% 6%, rgba(212, 175, 55, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 12% 88%, rgba(30, 58, 102, 0.4) 0%, transparent 45%);
}

.page-about__history-head {
  margin-bottom: 32px;
}

.page-about__history-intro {
  margin-top: 14px;
  max-width: 680px;
  font-size: 1rem;
  line-height: 1.85;
  color: #c9c4b8;
}

.page-about__history-map {
  margin-bottom: 44px;
}

.page-about__history-map img,
.page-about__services-image img,
.page-about__compare-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-about__timeline {
  position: relative;
  margin-top: 48px;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 19px;
  width: 1px;
  background: linear-gradient(180deg, rgba(212, 175, 55, 0.6), rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.6));
}

.page-about__timeline-item {
  position: relative;
  padding-left: 56px;
  padding-bottom: 40px;
}

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

.page-about__timeline-dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--about-line-strong);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-about__timeline-dot span {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--gold-accent);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.page-about__timeline-card {
  background: rgba(20, 41, 77, 0.38);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 26px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.page-about__timeline-card:hover {
  border-color: rgba(212, 175, 55, 0.55);
  box-shadow: var(--about-glow);
  transform: translateY(-2px);
}

.page-about__timeline-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--gold-accent);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 14px;
}

.page-about__timeline-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--text-primary);
}

.page-about__timeline-card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about__history.is-in-view .page-about__timeline-dot {
  background: var(--gold-accent);
  border-color: var(--gold-accent);
  box-shadow: 0 0 0 8px rgba(212, 175, 55, 0.14), 0 0 22px rgba(212, 175, 55, 0.3);
}

.page-about__history.is-in-view .page-about__timeline-dot span {
  color: #0a1930;
}

.page-about__services {
  background:
    radial-gradient(circle at 8% 10%, rgba(212, 175, 55, 0.07) 0%, transparent 35%),
    rgba(20, 41, 77, 0.14);
}

.page-about__services-head {
  margin-bottom: 38px;
}

.page-about__services-layout {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about__services-copy h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin: 24px 0 12px;
  color: var(--text-primary);
}

.page-about__services-copy h3:first-child {
  margin-top: 0;
}

.page-about__people-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about__people-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.98rem;
  line-height: 1.7;
  color: #c9c4b8;
}

.page-about__people-dot {
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold-accent);
  opacity: 0.7;
}

.page-about__people-note {
  margin-top: 24px;
  padding: 16px 18px;
  border-left: 2px solid var(--gold-accent);
  background: rgba(20, 41, 77, 0.28);
  border-radius: 0 14px 14px 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

.page-about__people-note p {
  margin: 0;
}

.page-about__services-image {
  margin: 0;
}

.page-about__service-grid {
  display: grid;
  gap: 16px;
  margin-top: 40px;
}

.page-about__service-card {
  background: rgba(20, 41, 77, 0.4);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 28px 24px;
  position: relative;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.page-about__service-card:hover {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--about-glow);
  transform: translateY(-3px);
}

.page-about__service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(212, 175, 55, 0.4);
  background: rgba(212, 175, 55, 0.08);
  color: var(--gold-accent);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 16px;
}

.page-about__service-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--text-primary);
}

.page-about__service-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.page-about__optimization {
  background:
    radial-gradient(ellipse at 88% 85%, rgba(30, 58, 102, 0.5) 0%, transparent 45%),
    linear-gradient(180deg, rgba(10, 25, 48, 0.4) 0%, rgba(10, 25, 48, 0) 60%);
}

.page-about__opt-head {
  margin-bottom: 38px;
}

.page-about__opt-grid {
  display: grid;
  gap: 18px;
}

.page-about__opt-item {
  position: relative;
  background: rgba(20, 41, 77, 0.35);
  border: 1px solid var(--about-line);
  border-radius: var(--about-radius);
  padding: 32px 28px 28px;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.page-about__opt-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-accent), transparent);
  opacity: 0.7;
}

.page-about__opt-item:hover {
  border-color: rgba(212, 175, 55, 0.5);
  transform: translateY(-3px);
}

.page-about__opt-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--gold-accent);
  opacity: 0.7;
  margin-bottom: 14px;
}

.page-about__opt-content h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--text-primary);
}

.page-about__opt-content p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.page-about__compare-image {
  margin-top: 44px;
}

.page-about__data {
  padding: 0 0 80px;
}

.page-about__data-panel {
  position: relative;
  border: 1px solid var(--about-line);
  border-radius: 28px;
  padding: 44px 24px;
  background:
    radial-gradient(ellipse at 90% 0%, rgba(212, 175, 55, 0.13) 0%, transparent 45%),
    radial-gradient(ellipse at 0% 100%, rgba(20, 41, 77, 0.5) 0%, transparent 50%);
}

.page-about__data-head {
  text-align: center;
}

.page-about__data-lead {
  margin: 12px auto 0;
  max-width: 520px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-about__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 20px;
  margin-top: 40px;
}

.page-about__stat {
  text-align: center;
  padding: 18px 8px;
  border: 1px solid transparent;
  border-radius: 18px;
  transition: border-color var(--transition), background var(--transition);
}

.page-about__stat:hover {
  border-color: var(--about-line);
  background: rgba(20, 41, 77, 0.25);
}

.page-about__stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.9rem);
  line-height: 1.2;
  color: var(--gold-accent);
  font-weight: 600;
}

.page-about__stat-label {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
}

.page-about__data-foot {
  margin-top: 36px;
  padding: 18px 22px;
  border-top: 1px solid var(--about-line);
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-about__data-foot p {
  margin: 0;
}

@media (min-width: 560px) {
  .page-about__service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .page-about__section {
    padding: 104px 0;
  }

  .page-about__timeline::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about__timeline-item,
  .page-about__timeline-item:nth-child(even) {
    width: 50%;
  }

  .page-about__timeline-item {
    padding-left: 0;
    padding-right: 56px;
    text-align: right;
  }

  .page-about__timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 56px;
    text-align: left;
  }

  .page-about__timeline-dot {
    left: auto;
    right: -20px;
    top: 6px;
    transform: none;
  }

  .page-about__timeline-item:nth-child(even) .page-about__timeline-dot {
    left: -20px;
    right: auto;
  }

  .page-about__timeline-dot span {
    font-size: 0.8rem;
  }
}

@media (min-width: 800px) {
  .page-about__data-panel {
    padding: 56px 48px;
  }

  .page-about__stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 900px) {
  .page-about__opt-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 960px) {
  .page-about__hero {
    padding: 80px 0 96px;
  }

  .page-about__hero-inner {
    grid-template-columns: minmax(0, 1fr) 180px;
    align-items: center;
  }

  .page-about__hero-script-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .page-about__hero-script {
    font-family: var(--font-serif);
    font-size: 3rem;
    line-height: 1.5;
    writing-mode: vertical-rl;
    letter-spacing: 0.2em;
    color: transparent;
    -webkit-text-stroke: 1px rgba(212, 175, 55, 0.5);
    border-left: 1px solid var(--about-line);
    padding-left: 10px;
  }

  .page-about__hero-script-label {
    font-size: 0.72rem;
    letter-spacing: 0.3em;
    color: var(--text-secondary);
    writing-mode: vertical-rl;
    text-transform: uppercase;
  }
}

@media (min-width: 992px) {
  .page-about__origin-grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
  }
}

@media (min-width: 1080px) {
  .page-about__services-layout {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-about__service-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}