.page-about {
  --about-shadow: 0 24px 60px rgba(10, 10, 10, 0.5);
  --about-glow: 0 0 40px rgba(212, 175, 55, 0.22);
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 40% at 85% 0%, rgba(212, 175, 55, 0.06), transparent 60%),
    var(--bg);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.8;
}

.page-about section[id] {
  scroll-margin-top: 88px;
}

.page-about > section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.page-about > section:last-child {
  border-bottom: 0;
}

@media (min-width: 768px) {
  .page-about {
    padding: 0 40px;
  }

  .page-about > section {
    padding: 100px 0;
  }
}

/* ---------- Hero ---------- */
.about-hero {
  position: relative;
  overflow: hidden;
  padding-top: 56px;
}

.about-hero::before {
  content: "ABOUT";
  position: absolute;
  top: -40px;
  right: -24px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(6rem, 20vw, 15rem);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(212, 175, 55, 0.05);
  pointer-events: none;
  z-index: 0;
}

.about-hero-inner {
  position: relative;
  z-index: 1;
}

.about-hero-grid {
  display: grid;
  gap: 40px;
  padding: 48px 0 32px;
}

.about-hero-kicker {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold);
}

.about-hero h1 {
  margin: 0 0 24px;
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 8vw, 5.25rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--text);
  text-shadow: 0 0 60px rgba(212, 175, 55, 0.18);
}

.about-hero-lead {
  max-width: 60ch;
  margin: 0 0 28px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(245, 245, 220, 0.82);
}

.about-hero-cta {
  font-size: 14px;
}

.about-hero-index {
  border-left: 2px solid rgba(212, 175, 55, 0.32);
  padding-left: 22px;
  margin-top: 8px;
}

.about-hero-index-title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
}

.about-hero-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-hero-index-list a {
  color: rgba(245, 245, 220, 0.72);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.about-hero-index-list a:hover {
  color: var(--gold);
  padding-left: 6px;
}

.about-hero-footer {
  margin: 8px 0 0;
  padding-top: 28px;
  border-top: 1px solid rgba(212, 175, 55, 0.16);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--stone);
}

@media (min-width: 860px) {
  .about-hero {
    padding-top: 72px;
  }

  .about-hero-grid {
    grid-template-columns: 1.25fr 0.75fr;
    align-items: start;
    gap: 72px;
    padding: 64px 0 48px;
  }

  .about-hero-lead {
    font-size: 18px;
  }

  .about-hero-footer {
    font-size: 14px;
  }
}

/* ---------- Shared Section Heading ---------- */
.about-section-head {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 44px;
}

.about-section-no {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(212, 175, 55, 0.18);
}

.about-section-en {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--gold);
}

.about-section-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--text);
}

@media (min-width: 860px) {
  .about-section-head {
    margin-bottom: 56px;
  }
}

/* ---------- Shared Figure ---------- */
.about-figure {
  margin: 0;
}

.about-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(212, 175, 55, 0.15);
  background: rgba(212, 175, 55, 0.04);
}

.about-figure figcaption {
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 01 传承与新生 ---------- */
.about-origin {
  background:
    linear-gradient(90deg, rgba(212, 175, 55, 0.035), transparent 60%);
}

.about-origin-layout {
  display: grid;
  gap: 40px;
  align-items: center;
}

.about-origin-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-origin-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(245, 245, 220, 0.78);
}

.about-origin-copy p:first-child::first-letter {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 3rem;
  float: left;
  line-height: 0.85;
  margin: 6px 10px 0 0;
  color: var(--gold);
}

.about-origin-figure {
  box-shadow: var(--about-shadow);
}

@media (min-width: 960px) {
  .about-origin-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 72px;
  }

  .about-origin-copy p {
    font-size: 17px;
  }
}

/* ---------- 02 核心价值 ---------- */
.about-values {
  background:
    radial-gradient(ellipse 70% 50% at 15% 40%, rgba(107, 142, 35, 0.06), transparent 60%),
    linear-gradient(rgba(212, 175, 55, 0.035), transparent 80%);
}

.about-values-statement {
  margin: -8px 0 40px;
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  letter-spacing: 0.18em;
  text-align: center;
  color: var(--gold);
}

.about-values-grid {
  display: grid;
  gap: 20px;
}

.about-value-card {
  position: relative;
  padding: 36px 28px 32px;
  border: 1px solid rgba(212, 175, 55, 0.18);
  background: rgba(245, 245, 220, 0.02);
  overflow: hidden;
  transition: transform var(--transition-slow), border-color var(--transition-slow), background-color var(--transition-slow);
}

.about-value-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), transparent 70%);
  opacity: 0.35;
  transition: opacity var(--transition-fast);
}

.about-value-card:hover {
  transform: translateY(-5px);
  border-color: rgba(212, 175, 55, 0.55);
  background: rgba(212, 175, 55, 0.05);
}

.about-value-card:hover::after {
  opacity: 1;
}

.about-value-index {
  display: block;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1;
  color: rgba(212, 175, 55, 0.55);
  margin-bottom: 18px;
}

.about-value-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.45rem;
  color: var(--text);
}

.about-value-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 245, 220, 0.7);
}

.about-values-figure {
  margin-top: 40px;
}

@media (min-width: 860px) {
  .about-values-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: start;
  }

  .about-value-card:nth-child(2) {
    margin-top: 36px;
  }

  .about-value-card:nth-child(3) {
    margin-top: 72px;
  }

  .about-values-figure {
    margin-top: 56px;
  }
}

/* ---------- 03 数据承诺 ---------- */
.about-data {
  background:
    radial-gradient(ellipse 80% 60% at 80% 10%, rgba(212, 175, 55, 0.08), transparent 60%);
}

.about-data-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 44px;
}

.about-stat {
  flex: 1 1 140px;
  padding: 30px 20px 24px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  background: rgba(212, 175, 55, 0.035);
  text-align: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.about-stat:hover {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: var(--about-glow);
}

.about-stat-num {
  display: block;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.4rem, 5vw, 3.3rem);
  line-height: 1;
  color: var(--gold);
}

.about-stat-label {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
}

.about-data-layout {
  display: grid;
  gap: 40px;
  align-items: center;
}

.about-data-content h3 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--text);
}

.about-data-content p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245, 245, 220, 0.76);
}

.about-data-content p:last-child {
  margin-bottom: 0;
}

.about-data-figure {
  box-shadow: var(--about-shadow);
}

@media (min-width: 640px) {
  .about-data-stats {
    flex-direction: row;
    gap: 20px;
    margin-bottom: 56px;
  }
}

@media (min-width: 960px) {
  .about-data-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 72px;
  }

  .about-data-figure {
    order: -1;
  }
}

/* ---------- 04 成长足迹 ---------- */
.about-journey {
  background:
    radial-gradient(ellipse 70% 40% at 90% 30%, rgba(0, 191, 255, 0.025), transparent 60%),
    linear-gradient(rgba(212, 175, 55, 0.03), transparent 70%);
}

.about-journey-intro {
  max-width: 58ch;
  margin: -8px 0 44px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(245, 245, 220, 0.76);
}

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

.about-journey-list::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(
    to bottom,
    var(--gold) 0%,
    var(--gold-dark) 45%,
    rgba(212, 175, 55, 0.12) 100%
  );
}

.about-journey-item {
  position: relative;
  padding: 0 0 52px 58px;
}

.about-journey-item:last-child {
  padding-bottom: 0;
}

.about-journey-marker {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 900;
  color: var(--gold);
  box-shadow: 0 0 0 4px rgba(10, 10, 10, 0.9), 0 0 24px rgba(212, 175, 55, 0.2);
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.about-journey-item:hover .about-journey-marker {
  background: var(--gold);
  color: var(--black);
  box-shadow: 0 0 0 4px rgba(10, 10, 10, 0.9), 0 0 44px rgba(212, 175, 55, 0.55);
}

.about-journey-content {
  padding-top: 4px;
}

.about-journey-content h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--text);
}

.about-journey-content p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(245, 245, 220, 0.7);
}

.about-journey-cta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 48px;
  padding: 28px 24px;
  border: 1px solid rgba(212, 175, 55, 0.18);
  background: rgba(212, 175, 55, 0.03);
}

.about-journey-cta p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 245, 220, 0.78);
}

@media (min-width: 900px) {
  .about-journey-list::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .about-journey-item {
    width: 50%;
    margin-left: 50%;
    padding: 0 0 60px 56px;
    text-align: left;
  }

  .about-journey-item:nth-child(odd) {
    margin-left: 0;
    padding: 0 56px 60px 0;
    text-align: right;
  }

  .about-journey-item .about-journey-marker {
    left: -20px;
    right: auto;
  }

  .about-journey-item:nth-child(odd) .about-journey-marker {
    right: -20px;
    left: auto;
  }

  .about-journey-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 32px 36px;
  }

  .about-journey-cta p {
    font-size: 15px;
  }
}

/* ---------- 05 透明与责任 ---------- */
.about-responsibility {
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(224, 17, 95, 0.04), transparent 60%);
}

.about-responsibility-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 44px;
}

.about-responsibility-card {
  padding: 28px 24px;
  border: 1px solid rgba(212, 175, 55, 0.16);
  border-left: 3px solid var(--gold);
  background: rgba(245, 245, 220, 0.02);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.about-responsibility-card:hover {
  transform: translateX(6px);
  border-color: rgba(212, 175, 55, 0.4);
}

.about-responsibility-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--text);
}

.about-responsibility-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(245, 245, 220, 0.7);
}

.about-responsibility-support {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 32px 24px;
  border: 1px solid rgba(212, 175, 55, 0.22);
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.08), rgba(212, 175, 55, 0.02));
}

.about-responsibility-support-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 245, 220, 0.8);
}

.about-responsibility-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-responsibility-mail {
  margin: 4px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--stone);
}

@media (min-width: 860px) {
  .about-responsibility-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .about-responsibility-support {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    padding: 36px 40px;
  }

  .about-responsibility-support-copy {
    flex: 1 1 280px;
  }

  .about-responsibility-mail {
    width: 100%;
    margin-top: 4px;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation: none !important;
    transition: none !important;
  }

  .page-about .about-value-card:hover,
  .page-about .about-responsibility-card:hover {
    transform: none;
  }

  .page-about .about-hero-index-list a:hover {
    padding-left: 0;
  }

  .page-about section[data-reveal],
  .page-about [data-reveal-stagger] {
    opacity: 1 !important;
    transform: none !important;
  }
}