.page-about {
  --about-line: rgba(13, 47, 82, .12);
  display: block;
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-about .breadcrumb {
  padding: 1rem var(--gutter) .3rem;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(1.2rem, 3.5vw, 2.4rem) var(--gutter) clamp(1.8rem, 4.5vw, 3rem);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.6rem);
  align-items: center;
}

.page-about .about-hero__lead {
  margin: 1rem 0 0;
  max-width: 46ch;
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-about .about-hero__media {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: linear-gradient(140deg, var(--mist), var(--coral-soft));
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--about-line);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-about .about-hero__badge {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  padding: .38rem .8rem;
  border-radius: 999px;
  background: rgba(248, 252, 255, .93);
  border: 1px solid var(--about-line);
  color: var(--ink-800);
  font-size: .74rem;
  letter-spacing: .06em;
}

/* ---------- 数据条 ---------- */
.page-about .fact-strip {
  margin: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--about-line);
  border: 1px solid var(--about-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .fact {
  background: var(--cloud);
  padding: 1rem .9rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-about .fact__num {
  font-size: clamp(1.35rem, 3.2vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -.02em;
  color: var(--ink-800);
  line-height: 1.1;
}

.page-about .fact__label {
  font-size: .78rem;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 章节索引 ---------- */
.page-about .log-nav {
  position: sticky;
  top: var(--topbar-h);
  z-index: 4;
  margin-top: clamp(1.4rem, 3vw, 2rem);
  padding: .65rem var(--gutter);
  display: flex;
  align-items: center;
  gap: .45rem;
  overflow-x: auto;
  scrollbar-width: none;
  background: rgba(248, 252, 255, .92);
  backdrop-filter: blur(8px);
  border-block: 1px solid var(--about-line);
}

.page-about .log-nav::-webkit-scrollbar {
  display: none;
}

.page-about .log-nav__label {
  flex: 0 0 auto;
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--muted);
  padding-right: .2rem;
}

.page-about .log-nav__link {
  flex: 0 0 auto;
  padding: .36rem .85rem;
  border-radius: 999px;
  border: 1px solid var(--about-line);
  background: var(--cloud);
  color: var(--ink-800);
  font-size: .83rem;
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-about .log-nav__link:hover,
.page-about .log-nav__link:focus-visible {
  background: var(--ink-800);
  border-color: var(--ink-800);
  color: var(--cloud);
}

/* ---------- 章节通用 ---------- */
.page-about .chapter {
  padding: clamp(2.4rem, 5.5vw, 4rem) var(--gutter) 0;
  scroll-margin-top: calc(var(--topbar-h) + 1.2rem);
}

.page-about .chapter__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .45rem 1rem;
  align-items: baseline;
  max-width: 64ch;
  margin-bottom: clamp(1.3rem, 3vw, 1.9rem);
}

.page-about .chapter__num {
  grid-row: span 2;
  padding-top: .4rem;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--coral);
}

.page-about .chapter__lead {
  grid-column: 2;
  margin: .2rem 0 0;
  font-size: .95rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 56ch;
}

.page-about .chapter h2 {
  grid-column: 2;
  margin: 0;
}

/* ---------- 双栏与侧注 ---------- */
.page-about .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
}

.page-about .aside-note {
  display: grid;
  gap: 1rem;
  padding: 1.2rem 1.1rem;
  border-radius: var(--r-md);
  background: var(--mist);
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--jade);
  align-content: start;
}

.page-about .aside-note__item {
  display: grid;
  gap: .22rem;
}

.page-about .aside-note__k {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink-800);
  letter-spacing: -.01em;
}

.page-about .aside-note__item p {
  margin: 0;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 会员等级 ---------- */
.page-about .chapter--member {
  background: var(--mist);
  padding-bottom: clamp(2.4rem, 5vw, 4rem);
  margin-top: clamp(2.4rem, 5.5vw, 3.6rem);
}

.page-about .member-visual {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--about-line);
  background: linear-gradient(120deg, var(--cloud), var(--coral-soft));
  margin-bottom: clamp(1.3rem, 3vw, 1.9rem);
  max-height: 200px;
}

.page-about .member-visual img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 200px;
  object-fit: cover;
}

.page-about .member-stair {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(.9rem, 2.4vw, 1.3rem);
}

.page-about .tier {
  position: relative;
  display: grid;
  gap: .55rem;
  align-content: start;
  padding: 1.4rem 1.1rem 1.5rem;
  border-radius: var(--r-lg);
  background: var(--cloud);
  border: 1px solid var(--about-line);
  box-shadow: var(--shadow-soft);
  transition: transform .22s var(--ease), border-color .22s var(--ease);
}

.page-about .tier:hover {
  transform: translateY(-3px);
  border-color: rgba(13, 47, 82, .28);
}

.page-about .tier::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: var(--tier-color, var(--ink-600));
}

.page-about .tier--bud { --tier-color: var(--ink-600); }
.page-about .tier--sail { --tier-color: var(--coral); }
.page-about .tier--peak { --tier-color: var(--jade); }

.page-about .tier h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
}

.page-about .tier__badge {
  justify-self: start;
  padding: .22rem .6rem;
  border-radius: 999px;
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--ink-800);
  background: var(--mist);
  border: 1px solid var(--about-line);
}

.page-about .tier--sail .tier__badge {
  background: var(--coral-soft);
  color: #8f2d18;
  border-color: rgba(217, 72, 43, .22);
}

.page-about .tier--peak .tier__badge {
  background: var(--jade-soft);
  color: #065b43;
  border-color: rgba(8, 122, 90, .22);
}

.page-about .tier__fit {
  margin: 0;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .tier__list {
  list-style: none;
  margin: .35rem 0 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-about .tier__list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .9rem;
  line-height: 1.65;
  color: var(--text);
}

.page-about .tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: var(--tier-color, var(--jade));
}

.page-about .tier__foot {
  margin: 1.1rem 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}

.page-about .team-card {
  position: relative;
  padding: 1.25rem 1.1rem 2.4rem;
  border-radius: var(--r-md);
  background: var(--cloud);
  border: 1px solid var(--about-line);
  transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-about .team-card:nth-child(2) {
  background: linear-gradient(160deg, var(--cloud), var(--mist));
}

.page-about .team-card:hover {
  transform: translateY(-3px);
  border-color: rgba(13, 47, 82, .28);
  box-shadow: var(--shadow-soft);
}

.page-about .team-card h3 {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
}

.page-about .team-card p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--text);
}

.page-about .team-card__num {
  position: absolute;
  right: 1rem;
  bottom: .85rem;
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 合作 ---------- */
.page-about .partner-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.3rem, 3.5vw, 2.2rem);
  align-items: start;
}

.page-about .honor {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .85rem;
  align-items: center;
  margin-top: 1.3rem;
  padding: 1rem 1.1rem;
  border-radius: var(--r-md);
  background: var(--sand);
  border: 1px solid var(--about-line);
}

.page-about .honor__medal {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--coral);
  letter-spacing: -.02em;
}

.page-about .honor p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.65;
  color: var(--text);
}

.page-about .partner-panel .accordion__item {
  border-radius: var(--r-sm);
  overflow: hidden;
}

/* ---------- 到店 ---------- */
.page-about .visit-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.3rem, 3vw, 2rem);
  align-items: center;
  padding: clamp(1.3rem, 3.5vw, 2.3rem);
  border-radius: var(--r-lg);
  background: var(--sand);
  border: 1px solid var(--about-line);
}

.page-about .visit-band h2 {
  margin: .35rem 0 .7rem;
}

.page-about .visit-band__text > p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--text);
  max-width: 52ch;
}

.page-about .visit-list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-about .visit-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .89rem;
  line-height: 1.65;
  color: var(--text);
}

.page-about .visit-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: .42rem;
  height: .42rem;
  border-radius: 1px;
  background: var(--jade);
}

.page-about .visit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.3rem;
}

.page-about .visit-note {
  margin: 1rem 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .visit-band__media {
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid rgba(13, 47, 82, .1);
  background: linear-gradient(150deg, var(--mist), var(--sand));
}

.page-about .visit-band__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 收尾入口 ---------- */
.page-about .about-cta {
  margin: clamp(2.2rem, 5vw, 3.6rem) var(--gutter) 0;
  padding: clamp(1.5rem, 3.6vw, 2.4rem);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, var(--ink-800), var(--ink-950));
  color: var(--cloud);
  display: grid;
  gap: 1.1rem;
}

.page-about .about-cta h2 {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--cloud);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}

.page-about .about-cta__links a {
  padding: .58rem 1.05rem;
  border-radius: 999px;
  border: 1px solid rgba(248, 252, 255, .26);
  background: rgba(248, 252, 255, .1);
  color: var(--cloud);
  font-size: .88rem;
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-cta__links a:hover,
.page-about .about-cta__links a:focus-visible {
  background: rgba(248, 252, 255, .22);
  border-color: rgba(248, 252, 255, .5);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-about .fact-strip {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about .member-visual,
  .page-about .member-visual img {
    max-height: 240px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .split {
    grid-template-columns: 8fr 4fr;
    align-items: start;
  }

  .page-about .member-stair {
    grid-template-columns: repeat(3, 1fr);
    align-items: end;
  }

  .page-about .tier--sail {
    margin-bottom: 1.4rem;
  }

  .page-about .tier--peak {
    margin-bottom: 2.8rem;
  }

  .page-about .partner-row {
    grid-template-columns: 5fr 7fr;
  }

  .page-about .visit-band {
    grid-template-columns: 7fr 5fr;
  }
}

@media (min-width: 1080px) {
  .page-about .team-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }

  .page-about .team-card:nth-child(2) {
    margin-top: 1.6rem;
  }

  .page-about .team-card:nth-child(4) {
    margin-top: .8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tier:hover,
  .page-about .team-card:hover {
    transform: none;
  }
}
<<<END>>>