.page-about {
  --about-line: rgba(11, 13, 16, 0.13);
  --about-shadow: 0 20px 44px -30px rgba(11, 13, 16, 0.6);
  --about-soft: rgba(244, 239, 228, 0.76);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.page-about .eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-about .section {
  padding: clamp(2.5rem, 6vw, 4.75rem) 0;
}

.page-about .section__lede {
  max-width: 48ch;
  color: #3a3f45;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding-top: 1.25rem;
}

.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--stone);
}

.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(11, 13, 16, 0.28);
}

.page-about .breadcrumb a {
  color: var(--jade);
  text-decoration: none;
}

.page-about .breadcrumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(130% 95% at 6% 0%, rgba(217, 166, 46, 0.2), transparent 56%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 13, 16, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 13, 16, 0.045) 1px, transparent 1px);
  background-size: 38px 38px;
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.75rem;
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(2.25rem, 5.5vw, 4rem);
  align-items: center;
}

.page-about .about-hero__title {
  margin: 0 0 1rem;
  font-size: clamp(2.05rem, 7.4vw, 4.1rem);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-about .about-hero__title span {
  display: inline-block;
  padding: 0 0.1em;
  box-shadow: inset 0 -0.26em 0 rgba(217, 166, 46, 0.42);
}

.page-about .about-hero__lede {
  margin: 0 0 1.5rem;
  max-width: 42ch;
  font-size: 1.0625rem;
  line-height: 1.78;
  color: #34393f;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.page-about .about-hero__visual {
  position: relative;
  min-height: 280px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--about-shadow);
  background:
    radial-gradient(90% 72% at 80% 10%, rgba(240, 85, 42, 0.24), transparent 60%),
    radial-gradient(72% 62% at 8% 92%, rgba(46, 127, 140, 0.3), transparent 62%),
    linear-gradient(158deg, #0b0d10 0%, #141920 56%, #0d1218 100%);
}

.page-about .about-hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}

.page-about .about-hero__arc {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.page-about .about-hero__badge {
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.9rem;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius);
  background: rgba(11, 13, 16, 0.74);
  border: 1px solid rgba(217, 166, 46, 0.42);
  color: var(--paper);
}

.page-about .about-hero__badge-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  text-shadow: 0 0 18px rgba(217, 166, 46, 0.55);
}

.page-about .about-hero__badge-unit {
  font-size: 0.875rem;
  color: var(--gold);
}

.page-about .about-hero__badge-text {
  flex: 1 1 12ch;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(244, 239, 228, 0.82);
}

/* ---------- 规模带 ---------- */
.page-about .about-scale__panel {
  position: relative;
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4.5vw, 2.9rem);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--paper);
  background:
    radial-gradient(82% 72% at 90% 6%, rgba(240, 85, 42, 0.19), transparent 58%),
    radial-gradient(64% 62% at 2% 98%, rgba(46, 127, 140, 0.26), transparent 62%),
    linear-gradient(160deg, #0b0d10 0%, #141920 100%);
}

.page-about .about-scale__panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

.page-about .about-scale__intro,
.page-about .about-scale__band,
.page-about .about-scale__note {
  position: relative;
  z-index: 1;
}

.page-about .about-scale__panel .eyebrow {
  color: var(--gold);
}

.page-about .about-scale__panel h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.55rem, 4.6vw, 2.5rem);
  line-height: 1.22;
  color: var(--paper);
}

.page-about .about-scale__lede {
  max-width: 50ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .about-scale__band {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-scale__item {
  background: var(--ink-soft);
  padding: 1.15rem 0.9rem;
  display: grid;
  gap: 0.3rem;
}

.page-about .about-scale__num {
  font-size: clamp(1.85rem, 6vw, 2.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  text-shadow: 0 0 22px rgba(217, 166, 46, 0.5);
}

.page-about .about-scale__label {
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: rgba(244, 239, 228, 0.72);
}

.page-about .about-scale__note {
  margin: 1.6rem 0 0;
  max-width: 54ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(244, 239, 228, 0.7);
}

.page-about .about-scale__note a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 166, 46, 0.5);
}

/* ---------- 五步流程 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-flow__step {
  position: relative;
  padding: 1.45rem 1.3rem 1.3rem;
  background: #fff;
  border: 1px solid var(--about-line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
  box-shadow: 7px 7px 0 rgba(11, 13, 16, 0.045);
}

.page-about .about-flow__step:nth-child(even) {
  border-top-color: var(--jade);
}

.page-about .about-flow__step::after {
  content: "";
  position: absolute;
  right: 0.6rem;
  bottom: 0.6rem;
  width: 18px;
  height: 18px;
  border-right: 2px solid var(--clay);
  border-bottom: 2px solid var(--clay);
  border-radius: 0 0 3px 0;
  opacity: 0.7;
}

.page-about .about-flow__no {
  display: block;
  margin-bottom: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--clay);
}

.page-about .about-flow__title {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
}

.page-about .about-flow__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: #3a3f45;
}

/* ---------- 发展历程 ---------- */
.page-about .about-history {
  background:
    linear-gradient(180deg, rgba(234, 227, 212, 0.85) 0%, rgba(244, 239, 228, 0.4) 100%);
  border-top: 1px solid var(--about-line);
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-history__banner {
  margin: 0 0 2.25rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-line);
}

.page-about .about-history__banner img,
.page-about .about-history__city img,
.page-about .about-team__photo img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-history__city {
  margin: 2.5rem 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-line);
  box-shadow: var(--about-shadow);
}

.page-about .about-history__city .figure__caption {
  padding: 0.7rem 0.95rem;
  background: #fff;
  font-size: 0.8125rem;
  color: var(--stone);
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.6rem;
  display: grid;
  gap: 1.15rem;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(217, 166, 46, 0.12) 100%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 1rem 1.05rem;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  transition: transform 0.34s var(--ease), box-shadow 0.34s var(--ease), border-color 0.34s var(--ease);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 1.35rem;
  width: 12px;
  height: 12px;
  margin-left: -5px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(217, 166, 46, 0.16), 0 0 16px rgba(217, 166, 46, 0.7);
}

.page-about .about-timeline__year {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clay);
  letter-spacing: 0.02em;
}

.page-about .about-timeline__title {
  margin: 0 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 700;
}

.page-about .about-timeline__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #3a3f45;
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-team__photo {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-line);
  box-shadow: var(--about-shadow);
}

.page-about .about-team__body h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  line-height: 1.24;
}

.page-about .about-team__body > p {
  max-width: 44ch;
  margin: 0 0 1.35rem;
  font-size: 1rem;
  line-height: 1.78;
  color: #3a3f45;
}

.page-about .about-roles__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.page-about .about-roles__tabs a {
  display: inline-flex;
  align-items: center;
  padding: 0.42rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--about-line);
  background: var(--paper-2);
  color: var(--ink);
  font-size: 0.8125rem;
  text-decoration: none;
  transition: background 0.28s var(--ease), border-color 0.28s var(--ease), color 0.28s var(--ease);
}

.page-about .about-roles__tabs a:hover,
.page-about .about-roles__tabs a:focus-visible {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--gold);
}

.page-about .about-team__roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .about-role {
  padding: 1rem 1.05rem;
  background: #fff;
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--jade);
  border-radius: var(--radius);
  scroll-margin-top: 6.5rem;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-about .about-role:target {
  background: rgba(217, 166, 46, 0.14);
  border-left-color: var(--gold);
}

.page-about .about-role__head {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
}

.page-about .about-role__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #3a3f45;
}

.page-about .about-team__hint {
  margin: 1.35rem 0 0;
  font-size: 0.9375rem;
  color: #3a3f45;
}

.page-about .about-team__hint a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 127, 140, 0.4);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.75rem 0 1.5rem;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-about .about-partners__list li {
  position: relative;
  padding: 0 0 0.85rem 1.4rem;
  border-bottom: 1px dashed rgba(11, 13, 16, 0.16);
  font-size: 0.9688rem;
  line-height: 1.72;
  color: #34393f;
}

.page-about .about-partners__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 0.8rem;
  height: 3px;
  border-radius: 2px;
  background: var(--gold);
}

.page-about .about-partners__list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-partners__list a {
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 127, 140, 0.4);
}

/* ---------- 行业认可 ---------- */
.page-about .about-recognition {
  background: linear-gradient(180deg, rgba(244, 239, 228, 1) 0%, rgba(234, 227, 212, 0.7) 100%);
}

.page-about .about-honors {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-about .about-honor {
  position: relative;
  padding: 1.6rem 1.4rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--paper);
  background:
    radial-gradient(90% 80% at 88% 0%, rgba(217, 166, 46, 0.24), transparent 58%),
    linear-gradient(152deg, #0b0d10 0%, #141920 100%);
}

.page-about .about-honor:nth-child(2) {
  background:
    radial-gradient(90% 80% at 88% 0%, rgba(46, 127, 140, 0.3), transparent 58%),
    linear-gradient(152deg, #0b0d10 0%, #131a21 100%);
}

.page-about .about-honor__year {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--gold);
}

.page-about .about-honor:nth-child(2) .about-honor__year {
  background: var(--jade);
  color: var(--paper);
}

.page-about .about-honor__title {
  margin: 0 0 0.55rem;
  font-size: 1.1875rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .about-honor__text {
  margin: 0;
  max-width: 42ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: rgba(244, 239, 228, 0.74);
}

/* ---------- 联系我们 ---------- */
.page-about .about-contact__panel {
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.5rem, 4.5vw, 2.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(217, 166, 46, 0.45);
  background:
    radial-gradient(80% 90% at 100% 0%, rgba(217, 166, 46, 0.22), transparent 60%),
    linear-gradient(140deg, #ffffff 0%, var(--paper-2) 100%);
}

.page-about .about-contact__body h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.45rem, 4.2vw, 2.15rem);
  line-height: 1.26;
}

.page-about .about-contact__body p {
  max-width: 46ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.78;
  color: #34393f;
}

.page-about .about-contact__channels {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .about-contact__mail {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  word-break: break-all;
  color: var(--gold);
}

.page-about .about-contact__tel {
  margin: 0 0 0.4rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-about .about-contact__hours {
  margin: 0 0 1.1rem;
  font-size: 0.875rem;
  color: rgba(244, 239, 228, 0.66);
}

.page-about .about-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-team__roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-scale__band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(1.5rem, 4vw, 3.25rem);
  }

  .page-about .about-hero__visual {
    min-height: 420px;
  }

  .page-about .about-contact__panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 2.25rem;
  }
}

@media (min-width: 1000px) {
  .page-about .about-flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.85rem;
  }

  .page-about .about-timeline {
    padding: 2.6rem 0 0;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.9rem;
    align-items: start;
  }

  .page-about .about-timeline::before {
    left: 0;
    right: 0;
    top: 13px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, rgba(217, 166, 46, 0.18) 0%, var(--gold) 50%, rgba(217, 166, 46, 0.18) 100%);
  }

  .page-about .about-timeline__item::before {
    left: 50%;
    top: -2.55rem;
    margin-left: -6px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .about-team__photo {
    transform: rotate(-1.1deg);
  }
}

@media (hover: hover) {
  .page-about .about-timeline__item:hover {
    transform: translateY(-6px);
    border-color: rgba(217, 166, 46, 0.6);
    box-shadow: 0 22px 36px -28px rgba(11, 13, 16, 0.72);
  }

  .page-about .about-flow__step:hover {
    box-shadow: 9px 9px 0 rgba(217, 166, 46, 0.16);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__item,
  .page-about .about-roles__tabs a,
  .page-about .about-role,
  .page-about .about-flow__step {
    transition: none;
  }

  .page-about .about-timeline__item:hover {
    transform: none;
  }
}