.page-about {
  --about-gold-soft: rgba(212, 175, 55, 0.2);
  --about-gold-line: rgba(212, 175, 55, 0.35);
  --about-body: #e2c7c7;
  display: block;
  background: var(--bg);
  color: var(--rose);
}

.page-about .breadcrumbs {
  padding: 1.4rem 0 0;
  font-size: 0.85rem;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 4.2rem 0 3.8rem;
  background: linear-gradient(135deg, #0d0808 0%, var(--violet) 55%, var(--crimson) 125%);
}

.page-about .about-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
  z-index: 0;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 8, 8, 0.12) 0%, rgba(13, 8, 8, 0.72) 100%);
  z-index: 1;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  bottom: -22px;
  left: -5%;
  width: 110%;
  height: 44px;
  background: var(--bg);
  transform: rotate(-1.6deg) skewX(-2deg);
  z-index: 3;
  pointer-events: none;
}

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

.page-about .about-hero__eyebrow {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 1.2rem;
  opacity: 0.9;
}

.page-about .about-hero h1 {
  font-family: var(--font-serif);
  font-size: 2.1rem;
  line-height: 1.14;
  color: var(--rose);
  max-width: 760px;
  margin: 0 0 1.2rem;
  text-shadow: 0 0 18px rgba(212, 175, 55, 0.2);
}

.page-about .about-hero__lead {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--rose);
  max-width: 680px;
  margin: 0 0 1rem;
  border-left: 3px solid var(--gold);
  padding-left: 1rem;
  opacity: 0.94;
}

.page-about .about-hero__hint {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--ash);
  margin: 0.4rem 0 2rem;
  line-height: 1.7;
  max-width: 680px;
}

.page-about .about-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
  max-width: 560px;
  margin-bottom: 0.4rem;
}

.page-about .about-stat {
  background: rgba(59, 26, 79, 0.5);
  border: 1px solid var(--about-gold-soft);
  border-radius: 12px;
  padding: 0.95rem 1rem;
  text-align: center;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-about .about-stat:hover {
  background: rgba(107, 26, 41, 0.55);
  border-color: var(--about-gold-line);
}

.page-about .about-stat__num {
  font-family: var(--font-serif);
  font-size: 1.9rem;
  line-height: 1;
  color: var(--gold-hi);
}

.page-about .about-stat__unit {
  font-size: 0.95rem;
  color: var(--rose);
  margin-left: 0.15rem;
}

.page-about .about-stat__label {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--ash);
  margin-top: 0.35rem;
}

.page-about .about-chapter {
  position: relative;
  padding: 3.2rem 0;
}

.page-about .about-origin {
  background: linear-gradient(180deg, #150d10 0%, #0f0909 100%);
}

.page-about .about-milestones {
  background: linear-gradient(160deg, #140a18 0%, #170c1f 45%, #0d0808 100%);
}

.page-about .about-scale {
  background: linear-gradient(100deg, rgba(107, 26, 41, 0.22) 0%, #150a12 55%, #0d0808 100%);
}

.page-about .about-methodology {
  background: linear-gradient(135deg, #120a1c 0%, rgba(59, 26, 79, 0.25) 50%, #0d0808 100%);
}

.page-about .about-compliance {
  background: linear-gradient(180deg, #0d0808 0%, #1a0d11 100%);
}

.page-about .about-chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.4rem;
}

.page-about .about-chapter__aside {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.8rem;
}

.page-about .about-chapter__num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  line-height: 1;
  color: rgba(212, 175, 55, 0.45);
  display: block;
  margin-right: 0.2rem;
}

.page-about .about-chapter__tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--about-gold-soft);
  padding: 0.35rem 0.7rem;
  border-radius: 40px;
  margin-top: 0.2rem;
  white-space: nowrap;
}

.page-about .about-chapter__body h2,
.page-about .about-chapter__heading h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  line-height: 1.25;
  color: var(--gold-hi);
  margin: 0 0 0.8rem;
  border-left: 3px solid var(--gold);
  padding-left: 0.9rem;
}

.page-about .about-chapter__body p,
.page-about .about-chapter__heading p {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 0 0 1rem;
  color: var(--about-body);
}

.page-about .about-origin__principles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
  margin: 1.6rem 0 0;
}

.page-about .about-principle {
  background: rgba(13, 8, 8, 0.55);
  border: 1px solid var(--about-gold-line);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-about .about-principle:hover {
  background: rgba(212, 175, 55, 0.06);
  border-color: var(--gold);
}

.page-about .about-principle__key {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.page-about .about-principle__desc {
  font-size: 0.9rem;
  color: var(--about-body);
  line-height: 1.65;
}

.page-about .about-chapter__heading {
  margin-bottom: 2rem;
}

.page-about .about-chapter__heading-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.9rem;
}

.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(212, 175, 55, 0.08));
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 2.6rem;
  margin-bottom: 1.2rem;
}

.page-about .about-timeline__node {
  position: absolute;
  left: 4px;
  top: 1.3rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--gold);
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
  box-sizing: border-box;
}

.page-about .about-timeline__card {
  background: linear-gradient(120deg, rgba(107, 26, 41, 0.2), rgba(59, 26, 79, 0.22));
  border: 1px solid var(--about-gold-soft);
  border-left: 3px solid var(--gold);
  padding: 1.1rem 1.2rem;
  border-radius: 10px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-timeline__card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45), 0 0 14px rgba(212, 175, 55, 0.12);
}

.page-about .about-timeline__card h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--gold-hi);
  margin: 0 0 0.4rem;
  line-height: 1.3;
}

.page-about .about-timeline__card p {
  font-size: 0.92rem;
  line-height: 1.75;
  margin: 0;
  color: var(--about-body);
}

.page-about .about-scale__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 2rem 0 1.6rem;
}

.page-about .about-scale-card {
  background: linear-gradient(160deg, rgba(59, 26, 79, 0.6), rgba(107, 26, 41, 0.32));
  border-radius: 14px;
  padding: 1.5rem;
  border: 1px solid var(--about-gold-soft);
  position: relative;
  overflow: hidden;
}

.page-about .about-scale-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.15), transparent 70%);
  pointer-events: none;
}

.page-about .about-scale-card__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 2.1rem;
  line-height: 1.1;
  color: var(--gold);
}

.page-about .about-scale-card__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold-hi);
  margin: 0.5rem 0 0.6rem;
  border-bottom: 1px solid var(--about-gold-line);
  padding-bottom: 0.2rem;
}

.page-about .about-scale-card p {
  font-size: 0.9rem;
  color: var(--about-body);
  margin: 0;
  line-height: 1.7;
}

.page-about .about-scale__chart,
.page-about .about-method__visual {
  width: 100%;
  max-width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--about-gold-soft);
  display: block;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  margin-bottom: 0.6rem;
}

.page-about .about-scale__note,
.page-about .about-method__extra {
  font-size: 0.85rem;
  color: var(--ash);
  line-height: 1.75;
  margin: 0.8rem 0 0;
}

.page-about .about-method__card {
  background: rgba(59, 26, 79, 0.3);
  border: 1px solid var(--about-gold-soft);
  border-radius: 14px;
  padding: 1.5rem;
  margin: 1.2rem 0;
}

.page-about .about-method__card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--gold);
  margin: 0 0 0.6rem;
  line-height: 1.3;
}

.page-about .about-method__card p {
  margin: 0 0 0.3rem;
}

.page-about .about-method__list {
  margin: 0.8rem 0 0.4rem;
  padding-left: 0;
  list-style: none;
}

.page-about .about-method__list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.45rem;
  color: var(--about-body);
  font-size: 0.92rem;
  line-height: 1.6;
}

.page-about .about-method__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  transform: rotate(45deg);
  background: var(--gold);
  opacity: 0.6;
}

.page-about .about-compliance__notice {
  border: 1px solid rgba(230, 57, 70, 0.5);
  background: rgba(230, 57, 70, 0.08);
  padding: 1.2rem 1.4rem;
  border-radius: 10px;
  margin: 1.5rem 0;
}

.page-about .about-compliance__notice strong {
  color: var(--alert);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-about .about-compliance__notice p {
  margin: 0.5rem 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--rose);
}

.page-about .about-compliance__notice a {
  color: var(--gold);
  text-decoration: underline;
}

.page-about .about-trust-section {
  background: rgba(13, 8, 8, 0.4);
  border: 1px solid var(--about-gold-soft);
  border-radius: 10px;
  padding: 1.1rem 1.3rem;
  margin: 1.2rem 0;
}

.page-about .about-trust-section p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--about-body);
  line-height: 1.75;
}

.page-about .about-more-links {
  margin-top: 1.8rem;
}

.page-about .about-more-links h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--gold-hi);
  margin: 0 0 0.6rem;
  letter-spacing: 0.04em;
}

.page-about .about-more-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-about .about-more-links li {
  margin: 0.4rem 0;
  padding-left: 1.3rem;
  font-size: 0.92rem;
  position: relative;
}

.page-about .about-more-links li::before {
  content: "→";
  color: var(--gold);
  position: absolute;
  left: 0;
  top: 0;
}

.page-about .about-more-links a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-more-links a:hover,
.page-about .about-more-links a:focus-visible {
  border-color: var(--gold);
  color: var(--rose);
}

@media (min-width: 640px) {
  .page-about .about-hero__meta {
    grid-template-columns: repeat(4, 1fr);
    max-width: 720px;
  }

  .page-about .about-hero h1 {
    font-size: 2.6rem;
  }

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

  .page-about .about-origin__principles {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 7rem 0 5.5rem;
  }

  .page-about .about-hero h1 {
    font-size: 3.8rem;
    max-width: 840px;
  }

  .page-about .about-hero__lead {
    font-size: 1.08rem;
    max-width: 720px;
  }

  .page-about .about-hero__hint {
    font-size: 0.9rem;
  }

  .page-about .about-chapter {
    padding: 4.5rem 0;
  }

  .page-about .about-chapter__grid {
    grid-template-columns: 220px 1fr;
    gap: 3.5rem;
  }

  .page-about .about-chapter__aside {
    position: sticky;
    top: 100px;
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
    margin-bottom: 0;
  }

  .page-about .about-chapter__num {
    font-size: 3.6rem;
  }

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

  .page-about .about-chapter__body h2,
  .page-about .about-chapter__heading h2 {
    font-size: 2.1rem;
  }

  .page-about .about-chapter__body p,
  .page-about .about-chapter__heading p {
    font-size: 1rem;
  }

  .page-about .about-timeline__card {
    padding: 1.3rem 1.5rem;
  }

  .page-about .about-timeline__card p {
    font-size: 0.96rem;
  }

  .page-about .about-scale-card {
    padding: 1.7rem;
  }

  .page-about .about-scale-card__num {
    font-size: 2.4rem;
  }

  .page-about .about-method__card {
    padding: 1.7rem 1.9rem;
  }

  .page-about .about-scale__chart,
  .page-about .about-method__visual {
    width: min(100%, 780px);
  }
}