.page-about {
  --ab-narrow: 220px;
  --ab-gap: clamp(20px, 3.2vw, 46px);
  --ab-radius: clamp(24px, 4vw, 40px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(20px, 3.4vw, 42px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -14%;
  right: -16%;
  width: min(78vw, 840px);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle, rgba(59, 47, 92, 0.85) 0%, rgba(59, 47, 92, 0) 68%);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  margin-top: clamp(16px, 2.6vw, 30px);
  align-items: end;
}

.page-about .about-hero__title {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(31px, 6.4vw, 70px);
  line-height: 1.08;
  letter-spacing: 0.05em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__num {
  font-family: var(--font-num);
  font-size: 1.14em;
  color: var(--cyan);
  letter-spacing: 0.02em;
  text-shadow: 0 0 46px rgba(56, 242, 207, 0.45);
}

.page-about .about-hero__lead {
  max-width: 56ch;
  margin: 0 0 clamp(20px, 2.8vw, 30px);
  color: var(--text);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--ab-radius);
  border: 1px solid rgba(28, 74, 63, 0.9);
  background: var(--ink-2);
  box-shadow: var(--shadow);
  transform: rotate(-2deg);
}

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

.page-about .about-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, rgba(56, 242, 207, 0.07) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.page-about .about-hero__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 16px 12px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--white);
  background: linear-gradient(to top, rgba(8, 31, 26, 0.94), rgba(8, 31, 26, 0));
}

/* ---------- 数据条 ---------- */
.page-about .about-facts {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(28, 74, 63, 0.85);
  border: 1px solid rgba(28, 74, 63, 0.9);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .about-facts__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(14px, 2vw, 22px);
  background: rgba(14, 47, 39, 0.94);
}

.page-about .about-facts__num {
  font-family: var(--font-num);
  font-size: clamp(27px, 3.6vw, 40px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-facts__unit {
  font-size: 0.55em;
  margin-left: 1px;
  color: var(--text);
}

.page-about .about-facts__item:nth-child(3) .about-facts__num {
  color: var(--orange);
}

.page-about .about-facts__item:nth-child(4) .about-facts__num {
  color: var(--gold);
}

.page-about .about-facts__label {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--text);
}

/* ---------- 章节跳转条 ---------- */
.page-about .about-jump {
  margin-top: clamp(24px, 3.8vw, 42px);
  border-block: 1px solid rgba(28, 74, 63, 0.85);
  background: rgba(14, 47, 39, 0.6);
}

.page-about .about-jump__inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-block: 10px;
  scrollbar-width: none;
}

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

.page-about .about-jump__link {
  flex: 0 0 auto;
  padding: 8px 18px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(28, 74, 63, 0.9);
  color: var(--text);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-jump__link:hover,
.page-about .about-jump__link[aria-current] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 通用分栏 ---------- */
.page-about .about-split {
  display: grid;
  gap: var(--ab-gap);
}

.page-about .about-h2 {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: 0.06em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.4;
  letter-spacing: 0.05em;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-body p {
  max-width: 68ch;
  margin: 0 0 14px;
  color: var(--text);
  line-height: 1.85;
}

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

/* ---------- 起步侧栏 ---------- */
.page-about .about-aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
}

.page-about .about-aside__mark {
  margin: 0;
  font-family: var(--font-num);
  font-size: 46px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
}

.page-about .about-aside__quote {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--white);
}

.page-about .about-aside .note-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(216, 233, 226, 0.72);
}

/* ---------- 覆盖面板 ---------- */
.page-about .about-reach__head {
  max-width: 72ch;
}

.page-about .about-reach__lead {
  margin: 0;
  color: var(--text);
  line-height: 1.85;
}

.page-about .about-reach__panel {
  margin-top: clamp(22px, 3vw, 36px);
  display: grid;
  gap: 0;
  overflow: hidden;
  border-radius: var(--ab-radius);
  border: 1px solid rgba(56, 242, 207, 0.18);
  background: var(--indigo);
}

.page-about .about-map__fig {
  position: relative;
  margin: 0;
  min-height: 250px;
  overflow: hidden;
}

.page-about .about-map__fig img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}

.page-about .about-map__fig::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(56, 242, 207, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 242, 207, 0.1) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-about .about-map__cap {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 1;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--cyan);
}

.page-about .about-map__legend {
  list-style: none;
  margin: 0;
  padding: clamp(18px, 2.6vw, 30px);
  display: grid;
  gap: 10px;
  background: rgba(8, 31, 26, 0.68);
}

.page-about .about-map__item {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: var(--r-md);
  border: 1px solid rgba(56, 242, 207, 0.16);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-about .about-map__item:hover {
  transform: translateX(4px);
  border-color: var(--cyan);
  background: rgba(56, 242, 207, 0.1);
}

.page-about .about-map__region {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-about .about-map__desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline__head {
  max-width: 60ch;
}

.page-about .about-timeline__list {
  list-style: none;
  position: relative;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(to bottom, var(--gold), rgba(217, 179, 108, 0.14));
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 44px;
  padding-bottom: clamp(22px, 3vw, 34px);
  max-width: 74ch;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(217, 179, 108, 0.12);
}

.page-about .about-timeline__phase {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 13px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(217, 179, 108, 0.5);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-timeline__item p {
  margin: 0;
  color: var(--text);
  line-height: 1.85;
}

/* ---------- 团队 ---------- */
.page-about .about-team__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--ab-radius);
  border: 1px solid rgba(28, 74, 63, 0.9);
  background: var(--ink-2);
  transform: rotate(1.6deg);
}

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

.page-about .about-team__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 24px 14px 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--white);
  background: linear-gradient(to top, rgba(8, 31, 26, 0.94), rgba(8, 31, 26, 0));
}

.page-about .about-team__grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 36px);
}

.page-about .about-team__card {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 2.4vw, 26px);
  border-radius: var(--r-lg);
  border: 1px solid rgba(28, 74, 63, 0.95);
  background: linear-gradient(160deg, rgba(14, 47, 39, 0.96), rgba(8, 31, 26, 0.98));
}

.page-about .about-team__card::after {
  content: "";
  position: absolute;
  top: -34px;
  right: -34px;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 242, 207, 0.16), transparent 70%);
  pointer-events: none;
}

.page-about .about-team__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-team__dot {
  display: block;
  width: 10px;
  height: 10px;
  margin-bottom: 14px;
  border-radius: 50%;
}

.page-about .about-team__dot--cyan {
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(56, 242, 207, 0.8);
}

.page-about .about-team__dot--orange {
  background: var(--orange);
  box-shadow: 0 0 14px rgba(255, 138, 61, 0.8);
}

.page-about .about-team__dot--gold {
  background: var(--gold);
  box-shadow: 0 0 14px rgba(217, 179, 108, 0.8);
}

.page-about .about-team__service {
  margin-top: clamp(22px, 3vw, 36px);
  display: grid;
  gap: 18px;
  padding: clamp(20px, 3vw, 34px);
  border-radius: var(--ab-radius);
  border: 1px solid rgba(56, 242, 207, 0.2);
  background: linear-gradient(120deg, rgba(14, 47, 39, 0.96), rgba(59, 47, 92, 0.42));
}

.page-about .about-team__service-copy p {
  margin: 0;
  max-width: 68ch;
  color: var(--text);
  line-height: 1.85;
}

.page-about .about-team__service-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 会员 ---------- */
.page-about .about-member__head {
  max-width: 62ch;
}

.page-about .about-member__lead {
  margin: 0;
  color: var(--text);
  line-height: 1.85;
}

.page-about .about-member__wrap {
  margin-top: clamp(22px, 3vw, 36px);
  display: grid;
  gap: var(--ab-gap);
}

.page-about .about-member__tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

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

.page-about .about-member__tab {
  flex: 0 0 auto;
  padding: 12px 22px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(28, 74, 63, 0.9);
  background: rgba(14, 47, 39, 0.8);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-member__tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-member__panel {
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--ab-radius);
  border: 1px solid rgba(28, 74, 63, 0.95);
  background: linear-gradient(150deg, rgba(91, 39, 56, 0.42), rgba(8, 31, 26, 0.96) 58%);
}

.page-about .about-member__panel[hidden] {
  display: none;
}

.page-about .about-member__name {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-about .about-member__panel > p {
  margin: 0 0 14px;
  max-width: 62ch;
  color: var(--text);
  line-height: 1.85;
}

.page-about .about-member__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-member__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--white);
}

.page-about .about-member__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--orange);
}

/* ---------- 结尾 ---------- */
.page-about .about-cta__inner {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 52px);
  border-radius: var(--ab-radius);
  border: 1px solid rgba(255, 138, 61, 0.28);
  background: linear-gradient(135deg, rgba(91, 39, 56, 0.88), rgba(8, 31, 26, 0.96) 64%);
}

.page-about .about-cta__inner::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 61, 0.24), transparent 68%);
  pointer-events: none;
}

.page-about .about-cta__inner > * {
  position: relative;
  z-index: 1;
}

.page-about .about-cta__text {
  max-width: 66ch;
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  color: var(--text);
  line-height: 1.85;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

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

  .page-about .about-split {
    grid-template-columns: var(--ab-narrow) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-split--team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    align-items: center;
  }

  .page-about .about-aside {
    position: sticky;
    top: 90px;
  }

  .page-about .about-reach__panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .page-about .about-map__fig {
    min-height: 380px;
  }

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

  .page-about .about-team__card:nth-child(2) {
    margin-top: 30px;
  }

  .page-about .about-team__card:nth-child(3) {
    margin-top: -16px;
  }

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

  .page-about .about-member__wrap {
    grid-template-columns: minmax(0, 0.34fr) minmax(0, 0.66fr);
    align-items: start;
  }

  .page-about .about-member__tabs {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-member__tab {
    text-align: left;
  }
}

@media (min-width: 1200px) {
  .page-about {
    --ab-narrow: 240px;
  }
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 899px) {
  .page-about .about-hero__media,
  .page-about .about-team__media {
    transform: none;
  }

  .page-about .about-map__fig {
    min-height: 220px;
  }
}

@media (max-width: 420px) {
  .page-about .about-hero__title {
    letter-spacing: 0.03em;
  }

  .page-about .about-timeline__item {
    padding-left: 38px;
  }

  .page-about .about-facts__num {
    font-size: 26px;
  }
}
<<<END>>>