.page-about {
  --about-gold-line: rgba(232, 178, 58, .45);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 20px 0 52px;
  color: var(--paper);
  background:
    radial-gradient(92% 72% at 12% 0%, #b3112c 0%, rgba(179, 17, 44, 0) 62%),
    linear-gradient(158deg, var(--red) 0%, var(--red-deep) 58%, var(--indigo-red) 100%);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255, 216, 122, .07) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-about .about-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumb__link { color: rgba(251, 243, 226, .82); text-decoration: none; }
.page-about .about-hero .breadcrumb__link:hover { color: var(--gold-bright); }
.page-about .about-hero .breadcrumb__current { color: var(--gold-bright); }
.page-about .about-hero .breadcrumb__list { color: rgba(251, 243, 226, .58); }

.page-about .about-hero__frame {
  position: relative;
  margin-top: 16px;
  padding: 20px 16px 20px;
  border: 1px solid var(--about-gold-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .04);
}

.page-about .about-hero__frame::before,
.page-about .about-hero__frame::after {
  content: "";
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--red-deep);
}

.page-about .about-hero__frame::before { left: -6px; top: -6px; }
.page-about .about-hero__frame::after { right: -6px; bottom: -6px; }

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--gold-bright);
}

.page-about .about-hero h1 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 56px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: #fff;
  text-shadow: 0 2px 0 rgba(94, 7, 21, .35), 0 0 26px rgba(255, 216, 122, .2);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 36rem;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(251, 243, 226, .9);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-hero .btn--ghost {
  color: var(--warm);
  border: 1px solid var(--about-gold-line);
  background: rgba(255, 255, 255, .06);
}

.page-about .about-hero .btn--ghost:hover {
  color: var(--gold-bright);
  border-color: var(--gold);
}

.page-about .about-hero__figure {
  margin: 0;
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--about-gold-line);
  box-shadow: var(--shadow-lift);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 20px;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--warm);
  border: 1px solid rgba(232, 178, 58, .55);
  text-decoration: none;
  color: var(--ink);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-stat:hover,
.page-about .about-stat:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-lift);
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 6vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--red-deep);
}

.page-about .about-stat__unit {
  font-size: 13px;
  font-weight: 700;
  margin-left: 3px;
  color: var(--gold-deep);
}

.page-about .about-stat__label {
  font-size: 12.5px;
  color: var(--taupe);
  letter-spacing: .04em;
}

/* ---------- 章节导览 ---------- */
.page-about .about-index {
  position: relative;
  z-index: 2;
  padding: 0 0 12px;
}

.page-about .about-index__list {
  list-style: none;
  margin: -30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-about .about-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no title"
    "no desc";
  align-items: center;
  column-gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid rgba(232, 178, 58, .38);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--ink);
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  border-color: var(--gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-about .about-index__no {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-deep);
}

.page-about .about-index__title {
  grid-area: title;
  font-size: 15px;
  font-weight: 800;
}

.page-about .about-index__desc {
  grid-area: desc;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--taupe);
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding: 42px 0;
}

.page-about .about-kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--gold-deep);
}

.page-about .about-kicker--light { color: var(--gold); }

.page-about .about-h2 {
  position: relative;
  margin: 0 0 14px;
  padding-left: 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 4.6vw, 34px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-about .about-h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .28em;
  width: 6px;
  height: 1.05em;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--gold), var(--red));
}

.page-about .about-h2--light { color: var(--paper); }
.page-about .about-h2--light::before {
  background: linear-gradient(180deg, var(--gold-bright), var(--gold-deep));
}

.page-about .about-section__lede {
  margin: 0 0 22px;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--taupe);
}

.page-about .about-prose p {
  margin: 0 0 14px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

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

.page-about .about-prose a {
  color: var(--red-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(232, 178, 58, .55);
}

.page-about .about-prose a:hover { color: var(--red); border-bottom-color: var(--red); }

/* ---------- 起点 ---------- */
.page-about .about-why__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 18px;
}

.page-about .about-aside {
  padding: 16px 16px 6px;
  border-radius: var(--radius);
  background: var(--warm);
  border: 2px solid rgba(232, 178, 58, .5);
}

.page-about .about-aside__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--red-deep);
}

.page-about .about-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink);
}

.page-about .about-aside__list li {
  position: relative;
  padding: 0 0 10px 14px;
}

.page-about .about-aside__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--red);
}

.page-about .about-aside__list a {
  color: var(--red-deep);
  font-weight: 800;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, .4);
}

/* ---------- 时间轴 ---------- */
.page-about .about-banner {
  margin: 0 0 26px;
}

.page-about .about-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(232, 178, 58, .4);
  box-shadow: var(--shadow-card);
}

.page-about .about-timeline {
  position: relative;
  list-style: none;
  margin: 6px 0 0;
  padding: 0 0 0 26px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(232, 178, 58, .22));
}

.page-about .about-tl {
  position: relative;
  padding: 0 0 22px;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  border: 3px solid var(--red);
  box-shadow: 0 0 0 3px rgba(232, 178, 58, .18);
}

.page-about .about-tl__year {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold-deep);
  margin-bottom: 8px;
}

.page-about .about-tl__card {
  padding: 14px 16px 16px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid rgba(232, 178, 58, .38);
  box-shadow: var(--shadow-card);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-about .about-tl:hover .about-tl__card {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-lift);
}

.page-about .about-tl__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-tl__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--taupe);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  color: var(--paper);
  background: linear-gradient(160deg, var(--green) 0%, var(--green-deep) 100%);
  border-top: 3px solid var(--gold);
  border-bottom: 3px solid var(--gold);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 22px;
}

.page-about .about-team__text p {
  margin: 0 0 14px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(251, 243, 226, .9);
}

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

.page-about .about-team__figure {
  margin: 0;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--about-gold-line);
}

.page-about .about-roles {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-role {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid rgba(232, 178, 58, .5);
}

.page-about .about-role__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--red-deep);
}

.page-about .about-role p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--taupe);
}

/* ---------- 规矩 ---------- */
.page-about .about-rules {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-rule {
  padding: 18px 18px 18px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid rgba(232, 178, 58, .42);
  box-shadow: var(--shadow-card);
  transition: transform .2s var(--ease), border-color .2s var(--ease);
}

.page-about .about-rule:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}

.page-about .about-rule__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-rule h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-rule p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--taupe);
}

/* ---------- 伙伴 ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-about .about-partners__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  align-content: start;
}

.page-about .about-partners__stats li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: var(--warm);
  border-left: 4px solid var(--red);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

.page-about .about-partners__num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--red-deep);
}

/* ---------- 认可 ---------- */
.page-about .about-honor {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-bottom: 20px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, var(--red-deep), var(--red));
  border: 1px solid var(--gold);
  color: var(--paper);
}

.page-about .about-honor__label {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--red-ink);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
}

.page-about .about-honor__text {
  font-size: 15px;
  font-weight: 700;
}

.page-about .about-feedback {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-feedback li {
  position: relative;
  padding: 14px 16px 14px 42px;
  border-radius: var(--radius-sm);
  background: var(--card);
  border: 1px solid rgba(232, 178, 58, .38);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--taupe);
}

.page-about .about-feedback li::before {
  content: "✦";
  position: absolute;
  left: 16px;
  top: 12px;
  font-size: 15px;
  color: var(--gold-deep);
}

.page-about .about-feedback strong {
  display: block;
  margin-bottom: 2px;
  color: var(--ink);
  font-weight: 800;
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  padding: 8px 0 52px;
}

.page-about .about-cta__box {
  position: relative;
  overflow: hidden;
  padding: 26px 20px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--gold);
  color: var(--paper);
  background: linear-gradient(150deg, var(--red) 0%, var(--red-deep) 62%, var(--indigo-red) 100%);
  box-shadow: var(--shadow-lift);
}

.page-about .about-cta__box::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255, 216, 122, .08) 0 1px, transparent 1px 64px);
  pointer-events: none;
}

.page-about .about-cta__title {
  position: relative;
  z-index: 1;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(21px, 4.4vw, 28px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: #fff;
}

.page-about .about-cta__text {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(251, 243, 226, .9);
}

.page-about .about-cta__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cta .btn--ghost {
  color: var(--warm);
  border: 1px solid var(--about-gold-line);
  background: rgba(255, 255, 255, .06);
}

.page-about .about-cta .btn--ghost:hover {
  color: var(--gold-bright);
  border-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-about .about-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .about-feedback li {
    padding: 16px 16px 16px;
  }

  .page-about .about-feedback li::before {
    position: static;
    display: block;
    margin-bottom: 6px;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero {
    padding: 26px 0 64px;
  }

  .page-about .about-hero__frame {
    padding: 28px 26px 24px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 32px;
  }

  .page-about .about-section {
    padding: 60px 0;
  }

  .page-about .about-why__grid {
    grid-template-columns: 1.6fr .95fr;
    align-items: start;
    gap: 30px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: 32px;
  }

  .page-about .about-rules {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: 1.5fr .9fr;
    align-items: start;
    gap: 32px;
  }

  .page-about .about-cta__box {
    padding: 34px 34px 36px;
  }
}

@media (min-width: 960px) {
  .page-about .about-timeline {
    padding: 0;
  }

  .page-about .about-timeline::before {
    left: 50%;
    margin-left: -1px;
  }

  .page-about .about-tl {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 64px;
    padding-bottom: 28px;
  }

  .page-about .about-tl::before {
    left: 50%;
    margin-left: -8px;
    top: 12px;
  }

  .page-about .about-tl__year {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
    margin-bottom: 0;
    padding-top: 4px;
    font-size: 40px;
    text-align: right;
  }

  .page-about .about-tl__card {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .about-tl:nth-child(even) .about-tl__year {
    grid-column: 2;
    text-align: left;
  }

  .page-about .about-tl:nth-child(even) .about-tl__card {
    grid-column: 1;
  }
}

@media (min-width: 1040px) {
  .page-about .about-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}