.page-about {
  --about-line: rgba(10, 29, 58, 0.14);
  --about-line-light: rgba(246, 248, 252, 0.2);
  background: var(--c-snow);
  color: var(--ink-soft);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  background:
    radial-gradient(900px 480px at 82% -8%, rgba(255, 106, 42, 0.24), transparent 62%),
    linear-gradient(158deg, var(--c-ink) 0%, var(--c-teal) 56%, var(--c-indigo) 100%);
  color: var(--c-snow);
  padding: calc(var(--header-h) + 32px) 0 clamp(40px, 6vw, 68px);
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}
.page-about .about-crumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: rgba(199, 210, 226, 0.55);
}
.page-about .about-crumbs a {
  color: var(--c-mist);
  text-decoration: none;
}
.page-about .about-crumbs a:hover { color: var(--c-snow); }
.page-about .about-crumbs [aria-current="page"] { color: var(--c-snow); }

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 52px);
  align-items: end;
}

.page-about .about-h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6.2vw, 4.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  color: var(--c-snow);
}
.page-about .about-h1 span {
  display: block;
  color: var(--c-orange);
}

.page-about .about-lede {
  max-width: 34em;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.85;
  color: rgba(246, 248, 252, 0.86);
}

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

.page-about .about-hero-figure { margin: 0; }
.page-about .about-hero-figure .figure-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-teal);
}
.page-about .about-hero-figure .figure-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.page-about .about-hero-figure .figure-caption {
  margin-top: 12px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: rgba(199, 210, 226, 0.8);
}

.page-about .about-facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 5vw, 64px);
  margin: clamp(36px, 6vw, 64px) 0 0;
  padding: clamp(20px, 3vw, 28px) 0 0;
  list-style: none;
  border-top: 1px solid var(--about-line-light);
}
.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 96px;
}
.page-about .about-facts .num {
  font-family: var(--font-num);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--c-snow);
}
.page-about .about-facts .stat-label {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--c-mist);
}

/* ---------- 章节导航条 ---------- */
.page-about .about-track {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  background: var(--c-ink);
  border-top: 1px solid var(--about-line-light);
  border-bottom: 1px solid var(--about-line-light);
}
.page-about .about-track-inner {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-top: 12px;
  padding-bottom: 12px;
  scrollbar-width: none;
}
.page-about .about-track-inner::-webkit-scrollbar { display: none; }
.page-about .about-track a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 16px;
  border: 1px solid var(--about-line-light);
  border-radius: var(--radius-pill);
  color: var(--c-snow);
  font-size: 0.84rem;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-about .about-track a .num {
  font-family: var(--font-num);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--c-orange);
}
.page-about .about-track a:hover {
  background: rgba(246, 248, 252, 0.1);
  border-color: var(--c-orange);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2.6vw, 24px);
}

.page-about .chapter-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--c-orange);
}

.page-about .chapter-body h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
}

.page-about .chapter-lede {
  max-width: 40em;
  margin: 0 0 clamp(24px, 3.6vw, 36px);
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

.page-about .prose p {
  max-width: 40em;
  margin: 0 0 1.1em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .prose p:last-child { margin-bottom: 0; }

/* ---------- 配色说明 ---------- */
.page-about .about-palette {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-palette li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.page-about .about-dot {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(10, 29, 58, 0.16);
}
.page-about .about-dot--ink { background: var(--c-ink); }
.page-about .about-dot--snow { background: var(--c-snow); }
.page-about .about-dot--orange { background: var(--c-orange); }
.page-about .about-dot--lime { background: var(--c-lime); }

/* ---------- 时间带 ---------- */
.page-about .about-timeline {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 6px 2px 20px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-about .milestone {
  flex: 0 0 clamp(238px, 64vw, 300px);
  scroll-snap-align: start;
  padding: 20px 20px 22px;
  background: var(--c-snow);
  border: 1px solid var(--about-line);
  border-top: 3px solid var(--c-orange);
  border-radius: var(--radius-md);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-about .milestone:hover,
.page-about .milestone:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(10, 29, 58, 0.1);
}
.page-about .milestone-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-ink);
}
.page-about .milestone-note {
  margin: 12px 0 0;
  max-height: 40em;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-mute);
  transition: max-height 0.26s var(--ease), opacity 0.26s var(--ease);
}

.page-about .about-milestone-figure { margin: clamp(20px, 3vw, 30px) 0 0; }
.page-about .about-milestone-figure .figure-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--c-teal);
}
.page-about .about-milestone-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .figure-caption {
  margin-top: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-mute);
}

/* ---------- 团队 ---------- */
.page-about .about-team-section {
  background: linear-gradient(180deg, var(--c-snow) 0%, rgba(199, 210, 226, 0.34) 100%);
}
.page-about .about-team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}
.page-about .about-team-figure { margin: 0; }
.page-about .about-team-figure .figure-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-teal);
}
.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-team-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .about-team-stats li {
  padding: 16px 18px;
  background: var(--c-ink);
  border-radius: var(--radius-sm);
}
.page-about .about-team-stats .num {
  display: block;
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-orange);
  margin-bottom: 6px;
}
.page-about .about-team-stats .stat-label {
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

/* ---------- 内容体系 ---------- */
.page-about .about-streams {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: stream;
}
.page-about .about-streams li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(16px, 2.4vw, 22px) 0;
  border-top: 1px solid var(--about-line);
}
.page-about .about-streams li:last-child {
  border-bottom: 1px solid var(--about-line);
}
.page-about .about-streams h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--c-ink);
}
.page-about .about-streams p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-mute);
}
.page-about .about-streams-more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-mute);
}
.page-about .about-streams-more a,
.page-about .about-eco-more a {
  color: var(--c-ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--c-orange);
  padding-bottom: 1px;
}
.page-about .about-streams-more a:hover,
.page-about .about-eco-more a:hover {
  color: var(--c-orange);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco-section {
  background: var(--c-snow);
}
.page-about .about-eco-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.6vw, 24px);
}
.page-about .eco-card {
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius-lg);
  color: var(--c-snow);
}
.page-about .eco-card--wine {
  background: linear-gradient(150deg, var(--c-wine) 0%, #3A1220 100%);
}
.page-about .eco-card--indigo {
  background: linear-gradient(150deg, var(--c-indigo) 0%, #160F30 100%);
}
.page-about .eco-tag {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: rgba(246, 248, 252, 0.12);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}
.page-about .eco-card h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 800;
  line-height: 1.32;
  color: var(--c-snow);
}
.page-about .eco-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(246, 248, 252, 0.82);
}
.page-about .about-eco-more {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-mute);
}

/* ---------- 承诺 ---------- */
.page-about .about-promise-section {
  background: var(--c-snow);
  padding-bottom: clamp(56px, 9vw, 112px);
}
.page-about .about-promise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}
.page-about .promise-item {
  padding-top: 18px;
  border-top: 1px solid var(--about-line);
}
.page-about .promise-item h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--c-ink);
}
.page-about .promise-item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--ink-mute);
}
.page-about .about-cta-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-palette { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .about-streams li {
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: clamp(20px, 4vw, 48px);
    align-items: baseline;
  }
  .page-about .about-promise-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 880px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-about .about-chapter {
    grid-template-columns: minmax(80px, 132px) minmax(0, 1fr);
    column-gap: clamp(28px, 5vw, 76px);
  }
  .page-about .chapter-body {
    position: relative;
    padding-left: clamp(22px, 3vw, 40px);
  }
  .page-about .chapter-body::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--c-orange) 0%, rgba(10, 29, 58, 0.12) 100%);
  }
  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-about .about-eco-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .milestone-note {
    max-height: 2.9em;
    overflow: hidden;
    opacity: 0.72;
  }
  .page-about .milestone:hover .milestone-note,
  .page-about .milestone:focus-within .milestone-note {
    max-height: 40em;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .milestone,
  .page-about .milestone-note,
  .page-about .about-track a {
    transition: none;
  }
  .page-about .milestone:hover,
  .page-about .milestone:focus-within {
    transform: none;
  }
}
<<<END>>>