.page-about {
  --about-gap: clamp(18px, 2.6vw, 30px);
  --about-shadow: 0 26px 64px -42px rgba(0, 0, 0, .96);
  --about-rule: linear-gradient(180deg, rgba(217, 154, 43, 0), rgba(217, 154, 43, .55), rgba(217, 154, 43, 0));
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: clamp(16px, 2.6vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(20px, 3.4vw, 44px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-hero__intro {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-hero__title {
  margin: 0;
  font-size: clamp(32px, 7.4vw, 64px);
  line-height: 1.1;
  letter-spacing: .05em;
  font-weight: 900;
  color: var(--fog-100);
  background: linear-gradient(102deg, #E8E6E1 10%, #F2C15C 56%, #D99A2B 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  color: var(--fog-300);
  line-height: 1.6;
}

.page-about .about-hero__facts-n {
  flex: 0 0 auto;
  min-width: 3.6em;
  color: var(--gold-300);
  font-size: 15px;
  letter-spacing: .04em;
}

.page-about .about-hero__media-wrap {
  position: relative;
}

.page-about .about-hero__media {
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
  margin: 0;
}

.page-about .about-hero__float {
  position: relative;
  z-index: 2;
  margin: -34px 14px 0;
  padding: 16px 18px 18px;
  background: linear-gradient(152deg, rgba(23, 27, 29, .97), rgba(11, 13, 14, .97));
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  box-shadow: var(--about-shadow);
}

.page-about .about-hero__float-label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--fog-500);
}

.page-about .about-hero__float-value {
  margin: 6px 0 4px;
  font-size: clamp(30px, 5vw, 38px);
  line-height: 1;
  color: var(--gold-300);
  letter-spacing: .02em;
}

.page-about .about-hero__float-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--fog-300);
}

/* ---------- 品牌起源 ---------- */
.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 44px);
}

.page-about .about-origin__head .section-title {
  margin: 10px 0 0;
}

.page-about .about-origin__body {
  display: grid;
  gap: 16px;
  max-width: 62ch;
}

.page-about .about-origin__body p {
  margin: 0;
  color: var(--fog-300);
  line-height: 1.85;
}

.page-about .about-origin__pillars {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-origin__pillars li {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold-500);
  border-radius: var(--radius-sm);
  background: linear-gradient(140deg, var(--ink-700), var(--ink-800));
}

.page-about .about-origin__pillars strong {
  color: var(--fog-100);
  font-size: 16px;
  letter-spacing: .05em;
}

.page-about .about-origin__pillars span {
  color: var(--fog-300);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 历程 ---------- */
.page-about .about-road__head {
  max-width: 68ch;
}

.page-about .about-road__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
}

.page-about .about-road__list {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .about-road__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(217, 154, 43, .55), rgba(111, 195, 162, .22), rgba(232, 230, 225, .06));
}

.page-about .about-road__list .timeline__item {
  position: relative;
  padding: 0 0 28px 0;
}

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

.page-about .about-road__list .timeline__node {
  position: absolute;
  left: -26px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 0 4px rgba(217, 154, 43, .06);
}

.page-about .about-road__list .timeline__item--done .timeline__node {
  background: var(--gold-500);
  border-color: var(--gold-300);
  box-shadow: 0 0 0 4px rgba(217, 154, 43, .16);
}

.page-about .about-road__list .timeline__date {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--gold-300);
}

.page-about .about-road__list .timeline__body h3 {
  margin: 0 0 6px;
  font-size: clamp(18px, 2.4vw, 21px);
  color: var(--fog-100);
  letter-spacing: .04em;
}

.page-about .about-road__list .timeline__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog-300);
  max-width: 52ch;
}

.page-about .about-road__media {
  margin: 0;
  align-self: start;
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
}

/* ---------- 服务规模 ---------- */
.page-about .about-scale__head {
  max-width: 64ch;
}

.page-about .about-scale__grid {
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-about .about-scale__cell {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: clamp(20px, 2.6vw, 28px);
  background: linear-gradient(150deg, var(--ink-700), var(--ink-800));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}

.page-about .about-scale__cell:hover {
  transform: translateY(-4px);
  border-color: var(--line-gold);
}

.page-about .about-scale__cell--lead {
  background: linear-gradient(150deg, rgba(217, 154, 43, .14), rgba(23, 27, 29, .96) 62%);
  border-color: var(--line-gold);
}

.page-about .about-scale__cell--jade {
  background: linear-gradient(150deg, rgba(47, 143, 107, .16), rgba(23, 27, 29, .96) 62%);
}

.page-about .about-scale__value {
  margin: 0;
  font-size: clamp(38px, 6.4vw, 56px);
  line-height: 1;
  letter-spacing: .01em;
  color: var(--gold-300);
}

.page-about .about-scale__cell--jade .about-scale__value {
  color: var(--jade-300);
}

.page-about .about-scale__unit {
  font-size: .44em;
  margin-left: 4px;
  color: var(--fog-300);
  letter-spacing: .06em;
}

.page-about .about-scale__label {
  margin: 0;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--fog-100);
}

.page-about .about-scale__note {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--fog-300);
}

/* ---------- 记录明细 ---------- */
.page-about .about-ledger__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-about .about-ledger__panel .section-title {
  margin: 10px 0 16px;
  max-width: 20ch;
}

.page-about .about-ledger__panel p {
  margin: 0 0 14px;
  color: var(--fog-300);
  line-height: 1.85;
  max-width: 56ch;
}

.page-about .about-ledger__cta {
  margin-top: 8px;
}

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

.page-about .about-ledger__item {
  display: grid;
  grid-template-columns: minmax(74px, auto) 1fr;
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-ledger__k {
  display: block;
  font-size: clamp(22px, 3.4vw, 28px);
  line-height: 1;
  color: var(--gold-500);
  letter-spacing: .01em;
  padding-top: 2px;
}

.page-about .about-ledger__k span {
  font-size: .5em;
  color: var(--fog-300);
  margin-left: 2px;
}

.page-about .about-ledger__item h3 {
  margin: 0 0 5px;
  font-size: 16px;
  letter-spacing: .05em;
  color: var(--fog-100);
}

.page-about .about-ledger__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--fog-300);
}

/* ---------- 团队 ---------- */
.page-about .about-team__head {
  max-width: 62ch;
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
  box-shadow: var(--about-shadow);
}

.page-about .about-team__cards {
  display: grid;
  gap: 14px;
}

.page-about .about-team__card {
  position: relative;
  padding: 20px 22px 22px;
  background: linear-gradient(150deg, var(--ink-700), var(--ink-800));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s var(--ease);
}

.page-about .about-team__card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 154, 43, .16), rgba(217, 154, 43, 0) 70%);
  pointer-events: none;
}

.page-about .about-team__card:hover {
  transform: translateY(-4px);
  border-color: var(--line-gold);
}

.page-about .about-team__card-idx {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--fog-500);
}

.page-about .about-team__card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  letter-spacing: .06em;
  color: var(--fog-100);
}

.page-about .about-team__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--fog-300);
}

.page-about .about-team__audit {
  margin-top: clamp(26px, 3.6vw, 44px);
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(23, 27, 29, .9), rgba(11, 13, 14, .9));
}

.page-about .about-team__audit-head {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: baseline;
  margin: 0 0 18px;
}

.page-about .about-team__audit-note {
  font-size: 13.5px;
  color: var(--fog-300);
}

.page-about .about-team__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  counter-reset: step;
}

.page-about .about-team__steps li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(42, 48, 51, .32);
  font-size: 14.5px;
  letter-spacing: .05em;
  color: var(--fog-100);
}

.page-about .about-team__steps .mono {
  flex: 0 0 auto;
  min-width: 2.4em;
  color: var(--jade-300);
  font-size: 12.5px;
  letter-spacing: .14em;
}

/* ---------- 承诺 ---------- */
.page-about .about-vow__inner {
  position: relative;
  padding: clamp(28px, 4.4vw, 56px) clamp(20px, 3.4vw, 48px);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 130% at 88% -10%, rgba(217, 154, 43, .16), rgba(217, 154, 43, 0) 58%),
    linear-gradient(150deg, var(--ink-700), var(--ink-900));
  box-shadow: var(--about-shadow);
  overflow: hidden;
}

.page-about .about-vow__inner::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 2px;
  background: var(--about-rule);
}

.page-about .about-vow__title {
  margin: 12px 0 16px;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.15;
  letter-spacing: .1em;
  color: var(--gold-300);
}

.page-about .about-vow__text {
  margin: 0 0 16px;
  max-width: 60ch;
  color: var(--fog-300);
  line-height: 1.85;
}

.page-about .about-vow__meta {
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--fog-500);
}

.page-about .about-vow__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-vow__link {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11, 13, 14, .55);
  text-decoration: none;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}

.page-about .about-vow__link:hover {
  border-color: var(--line-gold);
  transform: translateY(-3px);
  background: rgba(217, 154, 43, .07);
}

.page-about .about-vow__link-t {
  font-size: 16px;
  letter-spacing: .07em;
  color: var(--fog-100);
}

.page-about .about-vow__link-d {
  font-size: 13px;
  line-height: 1.7;
  color: var(--fog-300);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-team__steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 980px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.06fr .94fr;
    gap: clamp(32px, 4.4vw, 64px);
  }

  .page-about .about-hero__float {
    position: absolute;
    left: -30px;
    bottom: 30px;
    width: 232px;
    margin: 0;
  }

  .page-about .about-origin__grid {
    grid-template-columns: .78fr 1.22fr;
    gap: clamp(28px, 4.4vw, 64px);
  }

  .page-about .about-origin__head .section-title {
    position: sticky;
    top: 96px;
  }

  .page-about .about-road__grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
  }

  .page-about .about-road__media {
    position: sticky;
    top: 96px;
  }

  .page-about .about-ledger__grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(34px, 4.6vw, 68px);
  }

  .page-about .about-team__grid {
    grid-template-columns: .82fr 1.18fr;
    gap: clamp(26px, 3.4vw, 46px);
  }

  .page-about .about-team__steps {
    grid-template-columns: repeat(5, 1fr);
  }

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

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    letter-spacing: .06em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-scale__cell,
  .page-about .about-team__card,
  .page-about .about-vow__link {
    transition: none;
  }

  .page-about .about-scale__cell:hover,
  .page-about .about-team__card:hover,
  .page-about .about-vow__link:hover {
    transform: none;
  }
}