.page-about {
  --about-gap: clamp(22px, 3vw, 40px);
  --about-pad: clamp(44px, 6vw, 92px);
  --about-hair: rgba(169, 128, 90, 0.26);
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 14px 0 clamp(34px, 5vw, 68px);
}

.page-about .about-hero__frame {
  position: relative;
  padding: clamp(26px, 4.5vw, 62px) clamp(22px, 4vw, 58px) clamp(24px, 3.5vw, 46px);
  background-color: rgba(15, 59, 50, 0.55);
  background-image:
    linear-gradient(90deg, rgba(217, 164, 65, 0) 0%, rgba(217, 164, 65, 0) 58%, rgba(217, 164, 65, 0.92) 100%),
    linear-gradient(152deg,
      rgba(107, 74, 47, 0.32) 0%,
      rgba(15, 59, 50, 0.56) 48%,
      rgba(8, 37, 31, 0.82) 100%);
  background-size: 100% 3px, 100% 100%;
  background-position: top left, center;
  background-repeat: no-repeat, no-repeat;
  box-shadow: inset 0 0 0 1px rgba(217, 164, 65, 0.14);
  overflow: hidden;
}

.page-about .about-hero__inner {
  max-width: 60ch;
}

.page-about .about-hero__inner h1 {
  margin: 14px 0 0;
}

.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 56ch;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--about-hair);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 18px;
}

.page-about .about-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero__facts .num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 27px);
  font-weight: 700;
  color: var(--ivory);
  letter-spacing: -0.005em;
}

.page-about .about-hero__facts em {
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 发展刻度 ---------- */
.page-about .about-line {
  padding: 0 0 clamp(38px, 5vw, 72px);
}

.page-about .about-line__list {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--about-hair);
  display: grid;
  gap: 20px;
}

.page-about .about-line__item {
  position: relative;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-line__dot {
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(217, 164, 65, 0.16);
}

.page-about .about-line__year {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold);
}

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

@media (min-width: 760px) {
  .page-about .about-line__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }
}

/* ---------- 通用区块 ---------- */
.page-about .about-block {
  padding: var(--about-pad) 0;
}

.page-about .about-block__head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 3.5vw, 46px);
}

.page-about .about-block__head h2 {
  margin: 12px 0 0;
}

.page-about .about-block__head--with-note {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.page-about .about-note {
  display: none;
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.3em;
  font-size: 12px;
  color: var(--mist);
  margin-top: 8px;
}

@media (min-width: 900px) {
  .page-about .about-note {
    display: block;
  }
}

/* ---------- 起点 ---------- */
.page-about .about-start__grid {
  display: grid;
  gap: var(--about-gap);
}

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

.page-about .about-start__copy p + p {
  margin-top: 18px;
}

@media (min-width: 900px) {
  .page-about .about-start__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 数据卡 ---------- */
.page-about .about-stats {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-about .about-stats__item {
  position: relative;
  padding: 20px 16px 18px;
  background: linear-gradient(168deg, rgba(107, 74, 47, 0.24), rgba(8, 37, 31, 0.5));
  border-left: 2px solid rgba(217, 164, 65, 0.34);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-about .about-stats__item:hover,
.page-about .about-stats__item:focus-within {
  border-left-color: var(--gold);
  background: linear-gradient(168deg, rgba(107, 74, 47, 0.34), rgba(15, 59, 50, 0.58));
}

.page-about .about-stats__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.6vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ivory);
  letter-spacing: -0.01em;
}

.page-about .about-stats__label {
  margin: 10px 0 0;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--sand);
}

.page-about .about-stats__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

@media (hover: hover) {
  .page-about .about-stats__note {
    opacity: 0.48;
    transition: opacity var(--t-fast) var(--ease);
  }
  .page-about .about-stats__item:hover .about-stats__note,
  .page-about .about-stats__item:focus-within .about-stats__note {
    opacity: 1;
  }
}

@media (min-width: 900px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: var(--about-gap);
}

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

.page-about .about-team__copy p + p {
  margin-top: 18px;
}

.page-about .about-team__roles {
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  display: grid;
  gap: 2px;
}

.page-about .about-team__role {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  background: rgba(8, 37, 31, 0.34);
  border-left: 2px solid transparent;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-about .about-team__role:nth-child(even) {
  background: rgba(107, 74, 47, 0.16);
}

.page-about .about-team__role:hover {
  border-left-color: var(--gold);
  background: rgba(107, 74, 47, 0.28);
}

.page-about .about-team__role dt {
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-about .about-team__role dd {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
  white-space: nowrap;
}

.page-about .about-team__role dd .num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
}

@media (min-width: 900px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    align-items: start;
  }
}

/* ---------- 内容目录 ---------- */
.page-about .about-catalog__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-catalog__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-catalog__item {
  position: relative;
  padding: 20px 18px 18px;
  background: linear-gradient(164deg, rgba(107, 74, 47, 0.22), rgba(8, 37, 31, 0.52));
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: background var(--t-fast) var(--ease);
}

.page-about .about-catalog__item:hover {
  background: linear-gradient(164deg, rgba(46, 125, 154, 0.24), rgba(31, 60, 122, 0.36));
}

.page-about .about-catalog__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-about .about-catalog__name {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

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

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

.page-about .about-catalog__foot {
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--about-hair);
  font-size: 15px;
  line-height: 1.9;
  color: var(--sand);
  max-width: 72ch;
}

@media (min-width: 620px) {
  .page-about .about-catalog__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-catalog__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.82fr);
    align-items: start;
  }
}

/* ---------- 运营节奏 ---------- */
.page-about .about-rhythm__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-rhythm__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
  border-left: 1px solid rgba(169, 128, 90, 0.32);
  display: grid;
  gap: 28px;
}

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

.page-about .about-rhythm__item::before {
  content: "";
  position: absolute;
  left: -28.5px;
  top: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--replay-blue);
  border: 1px solid var(--gold);
  transition: background var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-about .about-rhythm__item:hover::before {
  background: var(--archive-indigo);
  box-shadow: 0 0 0 4px rgba(46, 125, 154, 0.2);
}

.page-about .about-rhythm__when {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 7px;
}

.page-about .about-rhythm__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-rhythm__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-rhythm__aside {
  padding: 22px 20px;
  background: linear-gradient(158deg, rgba(46, 125, 154, 0.16), rgba(31, 60, 122, 0.28));
  border-left: 2px solid rgba(46, 125, 154, 0.6);
}

.page-about .about-rhythm__links {
  margin: 20px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 900px) {
  .page-about .about-rhythm__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }
}

/* ---------- 线下合作 ---------- */
.page-about .about-space__panel {
  padding: clamp(24px, 3.6vw, 44px);
  background: linear-gradient(148deg, rgba(107, 74, 47, 0.3) 0%, rgba(15, 59, 50, 0.6) 60%, rgba(8, 37, 31, 0.85) 100%);
}

.page-about .about-space__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-space__count {
  font-family: var(--font-mono);
  font-size: clamp(40px, 8vw, 70px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
}

.page-about .about-space__count-label {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--sand);
}

.page-about .about-space__body {
  padding-top: 22px;
}

.page-about .about-space__body p + p {
  margin-top: 16px;
}

.page-about .about-space__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 服务与联系 ---------- */
.page-about .about-service__grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .about-service__copy p + p {
  margin-top: 16px;
}

.page-about .about-service__facts {
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  display: grid;
  gap: 2px;
}

.page-about .about-service__fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 16px;
  background: rgba(8, 37, 31, 0.34);
}

.page-about .about-service__fact:nth-child(even) {
  background: rgba(107, 74, 47, 0.16);
}

.page-about .about-service__fact dt {
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-about .about-service__fact dd {
  margin: 0;
  font-size: 14px;
  color: var(--ivory);
  text-align: right;
}

.page-about .about-service__card {
  padding: clamp(24px, 3.4vw, 38px) clamp(20px, 3vw, 34px);
  background: linear-gradient(160deg, rgba(107, 74, 47, 0.28), rgba(8, 37, 31, 0.72));
}

.page-about .about-service__channels {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-service__channels li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(169, 128, 90, 0.2);
}

.page-about .about-service__channels li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .about-service__key {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-about .about-service__val {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ivory);
  word-break: break-word;
}

.page-about .about-service__val.num {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-about .about-service__btn {
  margin-top: 26px;
}

@media (min-width: 900px) {
  .page-about .about-service__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    align-items: start;
  }
}