.page-about {
  --about-line: rgba(201, 162, 75, .28);
  --about-line-soft: rgba(126, 152, 166, .18);
  overflow-x: clip;
}

.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid var(--gold-lit);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(18, 56, 46, .88) 0%, rgba(7, 26, 22, 0) 62%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-faint) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-faint) 1px, transparent 1px);
  background-size: 86px 86px;
  opacity: .55;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  gap: 2rem;
  padding-block: 2rem 3rem;
}

.page-about .about-hero h1 {
  margin: .6rem 0 1rem;
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(2rem, 6.4vw, 3.9rem);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 17ch;
}

.page-about .about-hero .lede {
  max-width: 46ch;
  color: var(--mist);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

.page-about .about-hero-side {
  display: grid;
  gap: 1rem;
}

.page-about .about-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--about-line);
  background: var(--ink-3);
}

.page-about .about-hero-figure::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(201, 162, 75, .22);
  pointer-events: none;
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(.9) contrast(1.05);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--about-line-soft);
  border: 1px solid var(--about-line-soft);
}

.page-about .about-facts > div {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: .8rem .9rem;
  background: var(--ink-2);
}

.page-about .about-facts dt {
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--steel);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--gold-lit);
  letter-spacing: .02em;
}

/* ---------- 通用分区 ---------- */
.page-about .about-section {
  padding-block: 3rem;
  border-bottom: 1px solid var(--line-faint);
}

.page-about .about-head {
  margin-bottom: 2rem;
  max-width: 64ch;
}

.page-about .about-head .section-title {
  margin: .5rem 0 .9rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-about .about-head .lede {
  margin: 0;
  color: var(--mist);
}

.page-about .prose p {
  margin: 0 0 1rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 品牌由来 ---------- */
.page-about .about-split {
  display: grid;
  gap: 2rem;
}

.page-about .about-body .section-title {
  margin: .5rem 0 1.2rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  line-height: 1.25;
  color: var(--paper);
  letter-spacing: -.01em;
}

.page-about .about-notes {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-about .about-note {
  padding: 1.05rem 1.1rem 1.15rem;
  background: var(--ink-3);
  border: 1px solid var(--about-line-soft);
  border-left: 2px solid var(--seal);
}

.page-about .about-note .panel-label {
  margin: 0;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-about .about-note h3 {
  margin: .4rem 0 .4rem;
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--paper);
  letter-spacing: .01em;
}

.page-about .about-note p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 服务对象 ---------- */
.page-about .about-paths {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-path {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.35rem 1.2rem 1.3rem;
  background: var(--ink-2);
  border-top: 2px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease);
}

.page-about .about-path:hover,
.page-about .about-path:focus-within {
  background: var(--ink-3);
  border-top-color: var(--gold);
}

.page-about .about-path-no {
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--seal-warm);
}

.page-about .about-path h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--paper);
}

.page-about .about-path p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .about-path-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: .12rem;
  font-size: .85rem;
  color: var(--gold-lit);
  text-decoration: none;
  border-bottom: 1px solid var(--about-line);
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-about .about-path-link:hover {
  color: var(--paper);
  border-bottom-color: var(--gold-lit);
}

/* ---------- 团队 ---------- */
.page-about .about-crew {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-line-soft);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-crew li {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1.25rem 1.1rem 1.3rem;
  background: var(--ink);
}

.page-about .about-crew .about-num {
  font-family: var(--mono);
  font-size: clamp(2.3rem, 7vw, 3.4rem);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--gold);
}

.page-about .about-crew .about-role {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--paper);
}

.page-about .about-crew p {
  margin: .15rem 0 0;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-about .about-crew-body {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-crew-figure {
  margin: 0;
}

.page-about .about-crew-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  border: 1px solid var(--about-line-soft);
  background: var(--ink-3);
}

.page-about .about-crew-figure figcaption {
  margin-top: .65rem;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--steel);
}

.page-about .about-proof {
  margin-top: 1.5rem;
  padding: 1.1rem 1.15rem 1.2rem;
  border: 1px solid var(--about-line);
  background:
    linear-gradient(135deg, rgba(201, 162, 75, .08), transparent 62%),
    var(--ink-2);
}

.page-about .about-proof .panel-label {
  margin: 0;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-about .about-proof ol {
  list-style: none;
  margin: .8rem 0 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-about .about-proof li {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr);
  gap: .6rem;
  align-items: baseline;
  font-size: .89rem;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .about-proof li span {
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--gold);
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.7rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: .5rem;
  bottom: .5rem;
  width: 1px;
  background: linear-gradient(to bottom, var(--gold) 0%, rgba(201, 162, 75, .18) 100%);
}

.page-about .about-node {
  position: relative;
  padding-bottom: 2rem;
}

.page-about .about-node:last-child {
  padding-bottom: 0;
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -1.7rem;
  top: .45rem;
  width: 11px;
  height: 11px;
  background: var(--ink);
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-about .about-node-year {
  display: inline-block;
  margin-bottom: .3rem;
  font-family: var(--mono);
  font-size: clamp(1.4rem, 4vw, 1.75rem);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-about .about-node h3 {
  margin: 0 0 .4rem;
  font-family: var(--serif);
  font-size: 1.12rem;
  color: var(--paper);
}

.page-about .about-node p {
  margin: 0;
  max-width: 58ch;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .about-history-figure {
  display: grid;
  gap: 1.1rem;
  margin: 2.5rem 0 0;
  align-items: center;
}

.page-about .about-history-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 1px solid var(--about-line-soft);
  background: var(--ink-3);
}

.page-about .about-history-figure figcaption {
  font-size: .85rem;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 合作与运行 ---------- */
.page-about .about-quality-grid {
  display: grid;
  gap: 1rem;
}

.page-about .about-quality-panel {
  position: relative;
  padding: 1.4rem 1.2rem 1.35rem;
  background: var(--ink-2);
  border: 1px solid var(--about-line-soft);
}

.page-about .about-quality-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 34px;
  height: 2px;
  background: var(--gold);
}

.page-about .about-quality-panel .panel-label {
  margin: 0;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--seal-warm);
}

.page-about .about-metrics {
  list-style: none;
  margin: .9rem 0 0;
  padding: 0;
  display: grid;
  gap: .65rem;
}

.page-about .about-metrics li {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding-bottom: .55rem;
  border-bottom: 1px dashed var(--line-faint);
  font-size: .87rem;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-metrics li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-metric-num {
  flex: none;
  font-family: var(--mono);
  font-size: 1.1rem;
  letter-spacing: -.01em;
  color: var(--gold-lit);
}

/* ---------- 联系 ---------- */
.page-about .about-contact {
  background:
    radial-gradient(95% 120% at 100% 0%, rgba(18, 56, 46, .92) 0%, rgba(7, 26, 22, 0) 68%),
    var(--ink-2);
  border-top: 1px solid var(--about-line);
  border-bottom: 0;
}

.page-about .about-contact-grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-contact .section-title {
  margin: .5rem 0 1rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  line-height: 1.25;
  color: var(--paper);
}

.page-about .about-contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-about .about-contact-panel {
  padding: 1.4rem 1.25rem;
  background: rgba(7, 26, 22, .72);
  border: 1px solid var(--about-line);
}

.page-about .about-contact-panel .panel-label {
  margin: 0 0 .9rem;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-about .about-contact-panel p {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--mist);
  word-break: break-word;
}

.page-about .about-contact-panel p + p {
  margin-top: .55rem;
}

.page-about .about-contact-panel p:last-child {
  margin-top: 1rem;
  padding-top: .9rem;
  border-top: 1px dashed var(--about-line-soft);
  font-size: .82rem;
  color: var(--steel);
}

.page-about .about-contact-panel strong {
  display: inline-block;
  min-width: 3.2em;
  font-family: var(--mono);
  font-weight: 500;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold-lit);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero-grid {
    padding-block: 2.5rem 3.5rem;
  }

  .page-about .about-crew-body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.75rem;
    align-items: start;
  }

  .page-about .about-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-node {
    display: grid;
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
    padding-bottom: 2.4rem;
  }

  .page-about .about-node-year {
    margin-bottom: 0;
    padding-top: .1rem;
    text-align: right;
  }

  .page-about .about-history-figure {
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--about-line);
  }

  .page-about .about-crew {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 3rem;
    padding-block: 3.25rem 4.5rem;
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-notes {
    padding-left: 1.75rem;
    border-left: 1px solid var(--about-line);
  }

  .page-about .about-paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--about-line-soft);
    border: 1px solid var(--about-line-soft);
  }

  .page-about .about-crew-body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 2.75rem;
  }

  .page-about .about-quality-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-about .about-contact-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 3.25rem;
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-about .about-section {
    padding-block: 4.5rem;
  }

  .page-about .about-hero h1 {
    letter-spacing: -.025em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-path,
  .page-about .about-path-link {
    transition: none;
  }
}