.page-about {
  --about-line-soft: rgba(216, 210, 198, .85);
  --about-line-dark: rgba(168, 211, 208, .18);
  --about-gap: clamp(30px, 4.4vw, 54px);
}

/* 面包屑 */
.page-about .about-crumbs {
  padding-block: clamp(14px, 2vw, 22px) 0;
  background: var(--pearl);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--pearl);
  padding-block: clamp(30px, 5vw, 62px) clamp(46px, 7vw, 92px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 132px;
  height: 132px;
  background: linear-gradient(150deg, var(--ink) 0%, var(--ink-3) 100%);
  clip-path: polygon(40% 0, 100% 0, 100% 60%);
  z-index: 0;
  pointer-events: none;
}

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

.page-about .hero-title {
  margin: 14px 0 0;
  font-size: clamp(2.05rem, 5.4vw, 4rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--ink);
  max-width: 20ch;
}

.page-about .hero-em {
  display: inline;
  background: linear-gradient(180deg, transparent 64%, rgba(201, 162, 39, .38) 64%);
}

.page-about .hero-lede {
  margin-top: clamp(16px, 2.4vw, 24px);
  max-width: 62ch;
  color: var(--graphite);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 34px);
}

.page-about .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(14px, 2.2vw, 22px) clamp(16px, 2.6vw, 30px);
  margin: clamp(28px, 4.4vw, 44px) 0 0;
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
  max-width: 760px;
}

.page-about .hf dt {
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--mist);
}

.page-about .hf dd {
  margin: 5px 0 0;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 600;
  color: var(--ink);
}

.page-about .hf .mono {
  font-family: var(--font-mono);
  font-size: 1.18em;
  color: var(--ink);
}

@media (min-width: 900px) {
  .page-about .about-hero::before {
    top: 0;
    right: 0;
    bottom: 0;
    width: min(44%, 640px);
    height: auto;
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-about .hero-main {
    max-width: 640px;
  }
}

@media (min-width: 760px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 时间轴 */
.page-about .about-timeline {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  padding-block: clamp(52px, 7vw, 98px);
  color: var(--pearl);
}

.page-about .tl-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .14;
  z-index: 0;
  pointer-events: none;
}

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

.page-about .tl-head {
  max-width: 700px;
  margin-bottom: clamp(32px, 4.8vw, 58px);
}

.page-about .about-timeline .eyebrow {
  color: var(--lake-2);
}

.page-about .tl-head .section-title {
  margin-top: 12px;
  color: var(--pearl);
  font-size: clamp(1.5rem, 3.4vw, 2.4rem);
  line-height: 1.24;
}

.page-about .tl-note {
  margin-top: 14px;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.8;
  color: rgba(246, 244, 239, .72);
}

.page-about .tl-list {
  position: relative;
  display: grid;
  gap: clamp(30px, 4.6vw, 54px);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl-list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--lake-2) 52%, rgba(168, 211, 208, .08) 100%);
}

.page-about .tl-item {
  position: relative;
  padding-left: clamp(34px, 4.6vw, 56px);
}

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 5px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .16);
}

.page-about .tl-item:nth-child(even)::before {
  border-color: var(--lake-2);
  box-shadow: 0 0 0 4px rgba(168, 211, 208, .16);
}

.page-about .tl-year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold-2);
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(201, 162, 39, .5);
  margin: 0;
}

.page-about .tl-item:nth-child(even) .tl-year {
  color: var(--lake-2);
  border-bottom-color: rgba(168, 211, 208, .5);
}

.page-about .tl-body h3 {
  margin: 12px 0 0;
  font-size: clamp(17.5px, 2.1vw, 23px);
  font-weight: 600;
  line-height: 1.34;
  color: var(--pearl);
}

.page-about .tl-body p {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.82;
  color: rgba(246, 244, 239, .74);
}

.page-about .tl-gain {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 12px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink);
  background: var(--gold-2);
  border-radius: var(--radius);
}

.page-about .tl-item:nth-child(even) .tl-gain {
  background: var(--lake-2);
}

/* 团队 */
.page-about .about-team {
  background: var(--pearl);
  padding-block: clamp(52px, 7vw, 100px);
}

.page-about .team-figure {
  margin: 0 0 var(--about-gap);
}

.page-about .team-figure-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 100%);
  box-shadow: var(--shadow-1);
}

.page-about .team-figure-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11, 42, 63, .3) 0%, transparent 46%);
  pointer-events: none;
}

.page-about .team-figure-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .team-figure-cap {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--mist);
}

.page-about .team-grid {
  align-items: start;
}

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

.page-about .section-title {
  margin-top: 12px;
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  line-height: 1.24;
  color: var(--ink);
}

.page-about .body-para {
  margin: 16px 0 0;
  max-width: 60ch;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--graphite);
}

.page-about .role-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .role {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 3px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .role-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-about .role-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .role-desc {
  grid-column: 2;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .advisor-band {
  margin-top: var(--about-gap);
  padding-top: clamp(22px, 3.2vw, 34px);
  border-top: 1px solid var(--line);
}

.page-about .rail-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lake);
}

.page-about .rail-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 华人专区 */
.page-about .about-zone {
  background: var(--pearl-2);
  padding-block: clamp(52px, 7vw, 100px);
}

.page-about .zone-grid {
  align-items: center;
}

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

.page-about .zone-figure-media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius);
  background: linear-gradient(155deg, var(--ink-2) 0%, var(--lake) 145%);
  box-shadow: var(--shadow-1);
}

.page-about .zone-figure-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about .zone-link,
.page-about .partners-link {
  margin: 22px 0 0;
}

.page-about .text-link {
  display: inline-block;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--lake);
  padding-bottom: 3px;
  border-bottom: 1px solid var(--lake-2);
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-about .text-link:hover,
.page-about .text-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

.page-about .zone-zones {
  list-style: none;
  margin: clamp(30px, 4.4vw, 50px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(142px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .zone-zones li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 15px 16px;
  background: var(--pearl-2);
}

.page-about .zz-offset {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--lake);
}

.page-about .zz-area {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .script-preview {
  display: grid;
  gap: 1px;
  margin-top: clamp(22px, 3vw, 32px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .sp-col {
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--pearl-2);
}

.page-about .sp-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-about .sp-line {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: var(--graphite);
}

.page-about .sp-col--trad .sp-line {
  color: var(--mist);
}

@media (min-width: 700px) {
  .page-about .script-preview {
    grid-template-columns: 1fr 1fr;
  }
}

/* 共建合作 */
.page-about .about-partners {
  background: var(--pearl);
  padding-block: clamp(52px, 7vw, 100px);
}

.page-about .partners-grid {
  align-items: start;
}

.page-about .pf-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .pf-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-top: 1px solid var(--line);
}

.page-about .pf-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .pf-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 4px;
  margin: 0;
}

.page-about .pf-item h3 {
  margin: 0;
  font-size: clamp(15.5px, 1.9vw, 18px);
  font-weight: 600;
  color: var(--ink);
}

.page-about .pf-item p:last-child {
  grid-column: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* 稳定收束 */
.page-about .about-steady {
  position: relative;
  overflow: hidden;
  background: linear-gradient(158deg, var(--ink) 0%, var(--ink-3) 62%, var(--ink-2) 100%);
  padding-block: clamp(52px, 7vw, 104px);
  color: var(--pearl);
}

.page-about .about-steady::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(168, 211, 208, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 211, 208, .1) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 82%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), transparent 82%);
}

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

.page-about .steady-head {
  max-width: 660px;
}

.page-about .about-steady .eyebrow {
  color: var(--gold-2);
}

.page-about .about-steady .section-title {
  color: var(--pearl);
}

.page-about .steady-lede {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.82;
  color: rgba(246, 244, 239, .74);
}

.page-about .steady-grid {
  list-style: none;
  margin: clamp(30px, 4.4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-line-dark);
  border: 1px solid var(--about-line-dark);
}

.page-about .steady-item {
  padding: clamp(20px, 2.8vw, 30px);
  background: rgba(11, 42, 63, .92);
}

.page-about .steady-val {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--pearl);
}

.page-about .steady-val .mono {
  font-family: var(--font-mono);
  color: var(--gold-2);
}

.page-about .steady-label {
  margin: 12px 0 0;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--lake-2);
}

.page-about .steady-desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(246, 244, 239, .7);
}

.page-about .steady-cta {
  margin-top: clamp(32px, 4.6vw, 52px);
  padding-top: clamp(24px, 3.4vw, 38px);
  border-top: 1px solid var(--about-line-dark);
}

.page-about .steady-cta-text {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.82;
  color: rgba(246, 244, 239, .76);
}

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

@media (min-width: 760px) {
  .page-about .steady-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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