.page-about {
  position: relative;
  overflow-x: hidden;
}

.page-about .about-crumbs {
  padding-top: 104px;
  padding-bottom: 4px;
}

/* ---------- 首屏：海报式分层拼贴 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 clamp(56px, 8vw, 108px);
  isolation: isolate;
}

.page-about .about-hero__beam {
  position: absolute;
  z-index: -2;
  top: -140px;
  left: -18%;
  width: 150%;
  height: 560px;
  background:
    linear-gradient(102deg, rgba(22, 240, 220, 0.16) 0%, rgba(122, 92, 255, 0.14) 42%, rgba(5, 10, 24, 0) 72%);
  transform: rotate(-8deg);
  transform-origin: left center;
  filter: blur(2px);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(232, 238, 249, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 249, 0.05) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(120% 80% at 30% 20%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(120% 80% at 30% 20%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 0.94;
  font-size: clamp(44px, 11vw, 112px);
  text-transform: none;
}

.page-about .about-hero__line {
  display: block;
  color: var(--silver);
}

.page-about .about-hero__line--accent {
  color: var(--cyan);
  text-shadow: 0 0 44px rgba(22, 240, 220, 0.28);
}

.page-about .about-hero__lead {
  max-width: 40em;
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--body-ink);
}

.page-about .about-hero__tiles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

.page-about .about-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-about .about-tile:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
}

.page-about .about-tile__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-tile__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--dust);
  letter-spacing: 0.01em;
}

.page-about .about-tile--wide {
  border-left: 3px solid var(--cyan);
}

.page-about .about-tile--accent {
  border-color: rgba(255, 107, 74, 0.45);
  background: linear-gradient(160deg, rgba(255, 107, 74, 0.14), rgba(232, 238, 249, 0.04));
}

.page-about .about-tile--accent .about-tile__num {
  color: var(--pulse);
}

/* ---------- 三种人 ---------- */
.page-about .about-who__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-who__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--hull) 0%, rgba(11, 21, 48, 0.4) 100%);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-about .about-who__card:hover {
  transform: translateY(-6px);
  border-color: rgba(22, 240, 220, 0.42);
}

.page-about .about-who__card::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 60%, transparent);
  opacity: 0.8;
}

.page-about .about-who__index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--dust);
}

.page-about .about-who__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  color: var(--silver);
  letter-spacing: -0.01em;
}

.page-about .about-who__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-ink);
}

.page-about .about-who__link {
  margin-top: auto;
  padding-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 240, 220, 0.34);
  align-self: flex-start;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-about .about-who__link:hover,
.page-about .about-who__link:focus-visible {
  color: var(--silver);
  border-color: var(--silver);
}

/* ---------- 团队 ---------- */
.page-about .about-team__figure {
  margin-bottom: clamp(36px, 5vw, 60px);
}

.page-about .about-team__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.86);
}

.page-about .about-team__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-about .about-team__title {
  margin-bottom: 24px;
}

.page-about .about-ring {
  width: min(100%, 320px);
  height: auto;
  display: block;
  margin: 0 auto;
}

.page-about .about-ring__seg {
  transition: stroke-width 200ms var(--ease), opacity 200ms var(--ease);
  opacity: 0.92;
}

.page-about .about-ring__seg:hover {
  stroke-width: 22;
  opacity: 1;
}

.page-about .about-ring__total {
  font-family: var(--font-mono);
  font-size: 44px;
  font-weight: 700;
  fill: var(--silver);
}

.page-about .about-ring__unit {
  font-family: var(--font-body);
  font-size: 13px;
  fill: var(--dust);
  letter-spacing: 0.14em;
}

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .about-team__item {
  display: grid;
  grid-template-columns: auto auto 1fr;
  grid-template-areas:
    "dot count role"
    "desc desc desc";
  gap: 4px 12px;
  align-items: baseline;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--hull);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-about .about-team__item:hover {
  transform: translateX(4px);
  border-color: var(--line-strong);
}

.page-about .about-team__dot {
  grid-area: dot;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  align-self: center;
}

.page-about .about-team__item--data .about-team__dot { background: var(--cyan); box-shadow: 0 0 12px rgba(22, 240, 220, 0.7); }
.page-about .about-team__item--edit .about-team__dot { background: var(--violet); box-shadow: 0 0 12px rgba(122, 92, 255, 0.65); }
.page-about .about-team__item--viz .about-team__dot { background: var(--tag-gold); box-shadow: 0 0 12px rgba(242, 194, 48, 0.6); }

.page-about .about-team__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--silver);
  font-variant-numeric: tabular-nums;
}

.page-about .about-team__role {
  grid-area: role;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--dust);
}

.page-about .about-team__desc {
  grid-area: desc;
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--body-ink);
}

/* ---------- 版本演进 ---------- */
.page-about .about-version {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(52px, 7vw, 96px) 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-version__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-about .about-version__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
  filter: blur(1px) saturate(1.1);
}

.page-about .about-version__inner {
  position: relative;
  z-index: 1;
}

.page-about .about-rail {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 26px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-about .about-rail::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--violet) 58%, rgba(122, 92, 255, 0.06) 100%);
}

.page-about .about-rail__node {
  position: relative;
}

.page-about .about-rail__node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 20px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--void);
  border: 2px solid var(--cyan);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-about .about-rail__node:hover::before,
.page-about .about-rail__node:focus-within::before {
  transform: scale(1.08);
  box-shadow: 0 0 0 5px rgba(22, 240, 220, 0.16);
}

.page-about .about-ver {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(11, 21, 48, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 220ms var(--ease);
}

.page-about .about-ver[open] {
  border-color: rgba(22, 240, 220, 0.42);
}

.page-about .about-ver__head {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--silver);
}

.page-about .about-ver__head::-webkit-details-marker { display: none; }
.page-about .about-ver__head::marker { content: ""; }

.page-about .about-ver__name {
  flex: 1;
  min-width: 0;
  line-height: 1.4;
}

.page-about .about-ver__head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--cyan);
  transition: transform 220ms var(--ease);
}

.page-about .about-ver[open] .about-ver__head::after {
  content: "−";
}

.page-about .about-ver__body {
  padding: 0 18px 18px 18px;
}

.page-about .about-ver__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body-ink);
}

/* ---------- 数据来源 ---------- */
.page-about .about-source__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-about .about-source__col .section-title {
  margin-bottom: 18px;
}

.page-about .about-source__col .prose {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-ink);
}

.page-about .about-srcmap {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 20px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: radial-gradient(120% 100% at 50% 0%, rgba(22, 240, 220, 0.10), rgba(11, 21, 48, 0.9) 62%);
}

.page-about .about-srcmap__node,
.page-about .about-srcmap__out span {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10px 8px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--body-ink);
  background: var(--glass);
}

.page-about .about-srcmap__node--a { border-left: 2px solid var(--cyan); }
.page-about .about-srcmap__node--b { border-left: 2px solid var(--violet); }
.page-about .about-srcmap__node--c { border-left: 2px solid var(--tag-gold); }

.page-about .about-srcmap__core {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  padding: 14px 0 12px;
  position: relative;
}

.page-about .about-srcmap__core::before,
.page-about .about-srcmap__core::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 22%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

.page-about .about-srcmap__core::before { left: 0; }
.page-about .about-srcmap__core::after {
  right: 0;
  background: linear-gradient(270deg, transparent, var(--violet));
}

.page-about .about-srcmap__core .num {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-srcmap__core em {
  font-style: normal;
  font-size: 13px;
  color: var(--dust);
  letter-spacing: 0.1em;
}

.page-about .about-srcmap__out {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.page-about .about-srcmap__out span {
  border-style: dashed;
  color: var(--dust);
}

.page-about .about-nodes {
  margin-top: 20px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-node {
  padding: 14px 16px;
  border-left: 2px solid var(--cyan);
  background: var(--hull);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-about .about-node__time {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-about .about-node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-ink);
}

/* ---------- 辽宁观赛 ---------- */
.page-about .about-turf {
  position: relative;
  margin-top: clamp(48px, 7vw, 92px);
  padding: clamp(48px, 7vw, 88px) 0;
  background:
    radial-gradient(90% 70% at 12% 0%, rgba(15, 58, 46, 0.85), rgba(5, 10, 24, 0) 68%),
    var(--void);
  border-top: 1px solid rgba(22, 240, 220, 0.16);
}

.page-about .about-turf__head {
  max-width: 62em;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-about .about-turf__head .section-title {
  margin-bottom: 14px;
}

.page-about .about-turf__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-about .about-map {
  position: relative;
  min-height: 320px;
  border: 1px solid rgba(232, 238, 249, 0.1);
  border-radius: var(--r-lg);
  background:
    linear-gradient(rgba(232, 238, 249, 0.045) 1px, transparent 1px) 0 0 / 34px 34px,
    linear-gradient(90deg, rgba(232, 238, 249, 0.045) 1px, transparent 1px) 0 0 / 34px 34px,
    linear-gradient(150deg, rgba(15, 58, 46, 0.7), rgba(5, 10, 24, 0.92));
  overflow: hidden;
}

.page-about .about-map__dot {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transform: translate(-50%, -50%);
  font-size: 12px;
  color: var(--body-ink);
  cursor: default;
}

.page-about .about-map__dot i {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(22, 240, 220, 0.14), 0 0 14px rgba(22, 240, 220, 0.6);
  margin-bottom: 4px;
  transition: transform 220ms var(--ease);
}

.page-about .about-map__dot b {
  font-weight: 700;
  color: var(--silver);
  letter-spacing: 0.04em;
}

.page-about .about-map__dot em {
  font-style: normal;
  font-size: 11px;
  color: var(--dust);
  white-space: nowrap;
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .about-map__dot:hover i,
.page-about .about-map__dot:focus-within i {
  transform: scale(1.25);
}

.page-about .about-map__dot:hover em,
.page-about .about-map__dot:focus-within em {
  opacity: 1;
  transform: translateY(0);
}

.page-about .about-map__dot--shenyang { left: 52%; top: 40%; }
.page-about .about-map__dot--fushun   { left: 71%; top: 32%; }
.page-about .about-map__dot--dalian   { left: 57%; top: 84%; }
.page-about .about-map__dot--anshan   { left: 48%; top: 68%; }
.page-about .about-map__dot--benxi    { left: 68%; top: 57%; }
.page-about .about-map__dot--jinzhou  { left: 18%; top: 54%; }

.page-about .about-turf__aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .about-turf__media {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-about .about-turf__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) brightness(0.9);
}

.page-about .about-turf__aside .prose {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--body-ink);
}

.page-about .about-turf__cta {
  align-self: flex-start;
}

/* ---------- 合作 ---------- */
.page-about .about-partner__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-partner__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(200deg, rgba(16, 30, 66, 0.9), rgba(11, 21, 48, 0.55));
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-about .about-partner__card:hover {
  transform: translateY(-6px);
  border-color: rgba(122, 92, 255, 0.5);
}

.page-about .about-partner__num {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--violet);
  font-variant-numeric: tabular-nums;
}

.page-about .about-partner__num em {
  font-style: normal;
  font-size: 20px;
  color: var(--cyan);
}

.page-about .about-partner__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--silver);
}

.page-about .about-partner__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--body-ink);
}

.page-about .about-cta {
  margin-top: clamp(30px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid rgba(22, 240, 220, 0.28);
  border-radius: var(--r-lg);
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(22, 240, 220, 0.14), rgba(5, 10, 24, 0) 62%),
    var(--hull);
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-ink);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-about .about-hero__tiles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-tile--wide {
    grid-column: span 2;
  }

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

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

@media (min-width: 900px) {
  .page-about .about-crumbs {
    padding-top: 128px;
  }

  .page-about .about-hero__tiles {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    grid-auto-rows: 1fr;
  }

  .page-about .about-tile--wide {
    grid-column: span 1;
  }

  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

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

  .page-about .about-source__inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .about-turf__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }

  .page-about .about-rail {
    padding-left: 34px;
  }

  .page-about .about-rail__node::before {
    left: -34px;
  }
}

@media (min-width: 1120px) {
  .page-about .about-version__inner {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-about .about-version .section-head {
    margin-bottom: 0;
  }

  .page-about .about-partner .section-head {
    max-width: 54em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tile,
  .page-about .about-who__card,
  .page-about .about-team__item,
  .page-about .about-partner__card,
  .page-about .about-ring__seg,
  .page-about .about-map__dot i,
  .page-about .about-map__dot em {
    transition: none;
  }

  .page-about .about-tile:hover,
  .page-about .about-who__card:hover,
  .page-about .about-team__item:hover,
  .page-about .about-partner__card:hover {
    transform: none;
  }
}
<<<END>>>