/* ============================================
   团队介绍 · page-about
   ============================================ */

.page-about {
  --about-line: rgba(47, 227, 208, 0.22);
  --about-soft: rgba(246, 242, 233, 0.78);
  --about-mute: var(--grayblue-400);
  background: var(--ink-900);
  color: var(--offwhite-050);
  overflow-x: clip;
}

.page-about h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.03em;
  color: var(--offwhite-050);
}

.page-about h3 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: 0.03em;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: 34px 0 56px;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--about-line) 18%, var(--about-line) 82%, transparent);
}

.page-about .about-hero__title {
  margin: 20px 0 0;
  max-width: 640px;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.8vw, 56px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.035em;
  color: var(--offwhite-050);
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 660px;
  font-size: 17px;
  line-height: 1.82;
  color: var(--about-soft);
}

.page-about .about-hero__latency {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 24px 0 0;
  padding: 7px 15px 7px 13px;
  border: 1px solid rgba(47, 227, 208, 0.28);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
}

.page-about .about-hero__dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(47, 227, 208, 0.16);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
  margin-top: 38px;
  padding-top: 28px;
  border-top: 1px solid var(--ink-500);
}

.page-about .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 36px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--amber-400);
}

.page-about .stat__label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--about-mute);
}

/* ---------- 团队概览 ---------- */

.page-about .about-crew {
  padding: 56px 0 66px;
}

.page-about .about-crew__top {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .about-crew__text {
  margin: 16px 0 0;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-soft);
}

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

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

.page-about .crew-grid {
  display: grid;
  gap: 18px;
  margin-top: 36px;
}

.page-about .crew-card {
  position: relative;
  padding: 26px 22px 24px;
  border-radius: var(--radius-md);
  background: var(--ink-700);
  overflow: hidden;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-about .crew-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cyan-400);
}

.page-about .crew-card--rules::before { background: var(--redorange-500); }
.page-about .crew-card--verify::before { background: var(--darkred-600); }
.page-about .crew-card--ops::before { background: var(--graypurple-500); }

.page-about .crew-card:hover {
  transform: translateY(-3px);
  background: var(--ink-500);
}

.page-about .crew-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-about .crew-card__name {
  font-size: 21px;
  font-weight: 700;
  color: var(--offwhite-050);
}

.page-about .crew-card__count {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--amber-400);
}

.page-about .crew-card__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .crew-card__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--ink-500);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--about-mute);
}

/* ---------- 内容生产流程 ---------- */

.page-about .section--cream {
  color: var(--inktext-900);
}

.page-about .section--cream h2,
.page-about .section--cream h3 {
  color: var(--inktext-900);
}

.page-about .about-flow__lead {
  margin: 16px 0 0;
  max-width: 580px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(18, 24, 31, 0.74);
}

.page-about .flow-layout {
  display: grid;
  gap: 34px;
  margin-top: 36px;
}

.page-about .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.page-about .flow__item {
  position: relative;
  padding: 0 0 30px 54px;
  counter-increment: flow;
}

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

.page-about .flow__item::before {
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: var(--inktext-900);
  color: var(--cream-100);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-about .flow__item::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 42px;
  bottom: 6px;
  width: 1px;
  background: rgba(18, 24, 31, 0.18);
}

.page-about .flow__item:last-child::after {
  display: none;
}

.page-about .flow__title {
  font-size: 20px;
  font-weight: 700;
  padding-top: 4px;
}

.page-about .flow__text {
  margin: 9px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(18, 24, 31, 0.76);
}

.page-about .flow__meta {
  display: inline-block;
  margin: 11px 0 0;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--cream-300);
  color: #6B5C48;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .flow__item:hover .flow__meta,
.page-about .flow__item:focus-within .flow__meta {
  background: var(--inktext-900);
  color: var(--cream-100);
}

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

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

/* ---------- 发展历程时间轴 ---------- */

.page-about .about-timeline {
  padding: 64px 0;
}

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

.page-about .about-timeline__figure {
  margin: 32px 0 44px;
}

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

.page-about .tl {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-400), rgba(47, 227, 208, 0.12) 55%, var(--amber-400));
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 38px 38px;
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 15px;
  height: 15px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan-400);
}

.page-about .tl__item--now::before {
  border-color: var(--amber-400);
  background: var(--amber-400);
}

.page-about .tl__year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--amber-400);
}

.page-about .tl__title {
  font-size: 21px;
  font-weight: 700;
  color: var(--offwhite-050);
}

.page-about .tl__text {
  margin: 10px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--about-soft);
}

.page-about .tl__item:nth-child(3) .tl__text,
.page-about .tl__item:nth-child(4) .tl__text {
  color: rgba(246, 242, 233, 0.88);
}

/* ---------- 共建机构 ---------- */

.page-about .about-partners {
  background: var(--cream-100);
  color: var(--inktext-900);
}

.page-about .about-partners h2,
.page-about .about-partners h3 {
  color: var(--inktext-900);
}

.page-about .about-partners__title {
  max-width: 620px;
}

.page-about .about-partners__lead {
  margin: 16px 0 0;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(18, 24, 31, 0.74);
}

.page-about .ptag-wall {
  display: grid;
  gap: 30px;
  margin-top: 38px;
}

.page-about .ptag-group__title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-about .ptag-group__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.page-about .ptags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .ptag {
  display: inline-block;
  padding: 9px 15px;
  border-radius: 999px;
  background: var(--cream-300);
  border: 1px solid rgba(18, 24, 31, 0.08);
  font-size: 14px;
  color: var(--inktext-900);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .ptag:hover {
  background: var(--inktext-900);
  color: var(--cream-100);
  transform: translateY(-2px);
}

.page-about .about-partners__more {
  margin: 34px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(18, 24, 31, 0.12);
  font-size: 14px;
  color: rgba(18, 24, 31, 0.72);
}

.page-about .about-partners__more a {
  color: var(--darkred-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 岗位能力与入库条件 ---------- */

.page-about .about-skill {
  padding: 64px 0;
}

.page-about .skill-grid {
  display: grid;
  gap: 20px;
  margin-top: 34px;
}

.page-about .skill-card {
  padding: 26px 24px 28px;
  border-radius: var(--radius-md);
  background: var(--ink-700);
  border-left: 3px solid var(--darkred-600);
}

.page-about .skill-card:nth-child(2) {
  border-left-color: var(--graypurple-500);
}

.page-about .skill-card__title {
  font-size: 20px;
  font-weight: 700;
  color: var(--offwhite-050);
}

.page-about .skill-list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .skill-list li {
  position: relative;
  padding: 0 0 14px 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .skill-list li:last-child {
  padding-bottom: 0;
}

.page-about .skill-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 1px;
  background: var(--darkred-600);
}

.page-about .skill-card:nth-child(2) .skill-list li::before {
  background: var(--graypurple-500);
}

.page-about .skill-note {
  margin-top: 26px;
  padding: 28px 24px 30px;
  border-radius: var(--radius-md);
  background: var(--ink-700);
  border: 1px dashed var(--ink-500);
}

.page-about .skill-note__title {
  font-size: 19px;
  font-weight: 700;
  color: var(--amber-400);
}

.page-about .skill-note__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .skill-note__list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ink-500);
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-soft);
}

.page-about .skill-note__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .skill-note__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
}

/* ---------- 收尾行动 ---------- */

.page-about .about-cta {
  padding: 0 0 72px;
}

.page-about .cta-panel {
  position: relative;
  padding: 38px 26px 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-500);
  background: linear-gradient(135deg, var(--ink-700) 0%, var(--ink-900) 62%);
  overflow: hidden;
}

.page-about .cta-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 178, 62, 0.22), transparent 68%);
  pointer-events: none;
}

.page-about .cta-panel__title {
  position: relative;
  margin: 0;
  max-width: 460px;
}

.page-about .cta-panel__text {
  position: relative;
  margin: 16px 0 0;
  max-width: 560px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-soft);
}

.page-about .cta-panel__actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ============================================
   响应式
   ============================================ */

@media (min-width: 620px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 24px;
  }

  .page-about .ptag-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 34px;
  }

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

  .page-about .cta-panel {
    padding: 46px 40px 48px;
  }
}

@media (min-width: 760px) {
  .page-about .crew-grid {
    grid-template-columns: 5fr 4fr 3fr;
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-about .about-crew__top {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 44px;
  }

  .page-about .flow-layout {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 50px;
    align-items: start;
  }

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

  .page-about .tl__item {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 36px;
    padding-left: 42px;
  }

  .page-about .tl__year {
    margin-bottom: 0;
    padding-top: 2px;
    font-size: 20px;
  }

  .page-about .tl__text {
    max-width: 62ch;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero {
    padding: 48px 0 72px;
  }

  .page-about .crew-card:nth-child(2) {
    margin-top: 22px;
  }

  .page-about .crew-card:nth-child(3) {
    margin-top: 44px;
  }

  .page-about .tl__item:nth-child(4) .tl__text,
  .page-about .tl__item:nth-child(5) .tl__text {
    max-width: 54ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .crew-card,
  .page-about .ptag,
  .page-about .flow__meta {
    transition: opacity var(--dur) var(--ease);
  }

  .page-about .crew-card:hover,
  .page-about .ptag:hover {
    transform: none;
  }
}