.page-about {
  --about-shadow: 0 22px 48px -28px rgba(29, 21, 18, .68);
  --about-hairline: rgba(237, 231, 220, .2);
  background: var(--pine-900);
  color: var(--cream);
  overflow-x: clip;
}

.page-about .about-kicker {
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--volt);
  margin: 0 0 .9rem;
}

.page-about .about-kicker--volt {
  color: var(--volt);
}

.page-about .h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.75rem, 4.4vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  margin: 0;
}

.page-about .h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.34;
  margin: 0 0 .5rem;
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(1.6rem, 5vw, 2.8rem) 0 clamp(3rem, 8vw, 5.5rem);
  background: var(--pine-900);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-about .about-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(.82) contrast(1.06);
}

.page-about .about-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(16, 56, 44, .82) 0%, rgba(16, 56, 44, .7) 38%, var(--pine-900) 100%),
    radial-gradient(130% 90% at 82% 6%, rgba(223, 242, 78, .16), transparent 62%);
}

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

.page-about .about-hero__crumb {
  margin-bottom: clamp(1.6rem, 5vw, 3rem);
}

.page-about .about-hero__crumb .breadcrumb__link,
.page-about .about-hero__crumb .breadcrumb__current {
  color: rgba(237, 231, 220, .76);
}

.page-about .about-hero__crumb .breadcrumb__link:hover {
  color: var(--volt);
}

.page-about .about-hero__eyebrow {
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(237, 231, 220, .62);
  margin: 0 0 1rem;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.4rem, 8.4vw, 5.4rem);
  line-height: 1.02;
  letter-spacing: -.015em;
  margin: 0 0 clamp(1.1rem, 3vw, 1.8rem);
  color: var(--cream);
  text-shadow: 0 2px 30px rgba(16, 56, 44, .5);
}

.page-about .about-hero__lead {
  max-width: 46ch;
  font-size: clamp(1rem, 1.7vw, 1.12rem);
  line-height: 1.7;
  color: rgba(237, 231, 220, .86);
  margin: 0 0 clamp(1.9rem, 5vw, 3.2rem);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-top: 1px solid var(--about-hairline);
  padding-top: clamp(1.1rem, 3vw, 1.6rem);
  max-width: 720px;
}

.page-about .about-hero__fact {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding-right: .8rem;
}

.page-about .about-hero__fact + .about-hero__fact {
  border-left: 1px solid var(--about-hairline);
  padding-left: clamp(.8rem, 2vw, 1.4rem);
}

.page-about .about-hero__fact .stat__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 5.4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--volt);
}

.page-about .about-hero__fact .stat__label {
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(237, 231, 220, .68);
}

/* ============ 起点 ============ */
.page-about .about-origin {
  background: var(--pine-900);
  padding: clamp(2.6rem, 7vw, 4.6rem) 0 clamp(3rem, 8vw, 5rem);
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.4rem, 4vw, 3rem);
  border-top: 1px solid var(--about-hairline);
  padding-top: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-origin__title {
  color: var(--cream);
  max-width: 14ch;
}

.page-about .about-origin__body p {
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.74;
  color: rgba(237, 231, 220, .84);
  margin: 0 0 1.1rem;
}

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

.page-about .about-origin__body a {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid rgba(223, 242, 78, .45);
}

/* ============ 时间线 ============ */
.page-about .about-timeline {
  background: linear-gradient(180deg, var(--pine-900) 0%, var(--soil-900) 62%, var(--soil-700) 100%);
  padding: clamp(2.8rem, 8vw, 5rem) 0 clamp(3.4rem, 9vw, 6rem);
}

.page-about .about-timeline__head {
  max-width: 42ch;
  margin-bottom: clamp(2rem, 5vw, 3.4rem);
}

.page-about .about-timeline__head .h2 {
  color: var(--cream);
}

.page-about .about-timeline__intro {
  margin: 1rem 0 0;
  color: rgba(237, 231, 220, .74);
  line-height: 1.7;
}

.page-about .about-tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 clamp(1rem, 3.4vw, 2.4rem);
  display: grid;
  gap: clamp(1.4rem, 3.6vw, 2.6rem);
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: .4rem;
  bottom: .4rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(223, 242, 78, .7), rgba(237, 231, 220, .22) 55%, rgba(223, 242, 78, .55) 100%);
}

.page-about .about-tl__item {
  display: grid;
  gap: .7rem;
}

.page-about .about-tl__year {
  display: flex;
  align-items: baseline;
  gap: .7rem;
}

.page-about .about-tl__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--volt);
}

.page-about .about-tl__tag {
  font-size: 12px;
  letter-spacing: .09em;
  color: rgba(237, 231, 220, .66);
}

.page-about .about-tl__body {
  background: var(--cream);
  color: var(--ink);
  padding: clamp(1.3rem, 3vw, 2rem);
  clip-path: polygon(0 0, 100% 14px, 100% 100%, 0 calc(100% - 14px));
}

.page-about .about-tl__body .h3 {
  color: var(--ink);
  padding-top: 4px;
}

.page-about .about-tl__body p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.68;
  color: var(--ink-soft);
  padding-bottom: 4px;
}

.page-about .about-tl__body a {
  color: var(--soil-700);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 58, 34, .35);
}

.page-about .about-tl__body a:hover {
  border-bottom-color: var(--soil-700);
}

/* ============ 团队 ============ */
.page-about .about-team {
  background: var(--soil-700);
  padding: clamp(3rem, 8vw, 5.4rem) 0 clamp(3.2rem, 9vw, 6rem);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.4rem);
}

.page-about .about-team__lead .h2 {
  color: var(--cream);
  max-width: 12ch;
}

.page-about .about-team__intro {
  margin: 1rem 0 1.6rem;
  max-width: 42ch;
  line-height: 1.72;
  color: rgba(246, 237, 222, .86);
}

.page-about .about-team__media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-card);
  box-shadow: var(--about-shadow);
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.9) contrast(1.04);
}

.page-about .about-team__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(140, 58, 34, .34), rgba(16, 56, 44, .32));
  pointer-events: none;
}

.page-about .about-team__media .media__caption {
  position: absolute;
  left: 1rem;
  bottom: .85rem;
  margin: 0;
  z-index: 1;
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(246, 237, 222, .92);
}

.page-about .about-team__cards {
  display: grid;
  gap: 1rem;
}

.page-about .about-team__card {
  position: relative;
  background: var(--glass);
  border: 1px solid rgba(237, 231, 220, .2);
  border-radius: var(--radius-card);
  padding: clamp(1.2rem, 3vw, 1.7rem);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform .09s var(--ease), background .22s var(--ease), border-color .22s var(--ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-visible,
.page-about .about-team__card:focus-within {
  transform: translateY(-3px);
  background: rgba(246, 237, 222, .19);
  border-color: rgba(223, 242, 78, .48);
  outline: none;
}

.page-about .about-team__idx {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--volt);
  margin-bottom: .7rem;
}

.page-about .about-team__card .h3 {
  color: var(--cream);
}

.page-about .about-team__desc {
  margin: 0;
  font-size: .96rem;
  line-height: 1.66;
  color: rgba(246, 237, 222, .84);
}

.page-about .about-team__rhythm {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .3s var(--ease);
  margin-top: 0;
}

.page-about .about-team__rhythm > div {
  overflow: hidden;
}

.page-about .about-team__card:hover .about-team__rhythm,
.page-about .about-team__card:focus .about-team__rhythm,
.page-about .about-team__card:focus-within .about-team__rhythm {
  grid-template-rows: 1fr;
}

.page-about .about-team__rhythm-label {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--volt);
  padding-top: 1rem;
  margin-bottom: .45rem;
}

.page-about .about-team__rhythm p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.64;
  color: rgba(246, 237, 222, .78);
  padding-bottom: .2rem;
}

/* ============ 收录标准 ============ */
.page-about .about-cases {
  position: relative;
  background: var(--cream);
  color: var(--ink);
  padding: clamp(4.2rem, 12vw, 8rem) 0 clamp(3rem, 8vw, 5rem);
}

.page-about .about-cases::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(44px, 7vw, 92px);
  background: var(--soil-700);
  clip-path: polygon(0 0, 100% 0, 100% 20%, 0 100%);
}

.page-about .about-cases .about-kicker {
  color: var(--soil-700);
}

.page-about .about-cases__head {
  max-width: 56ch;
  margin-bottom: clamp(2rem, 5vw, 3.2rem);
}

.page-about .about-cases__head .h2 {
  color: var(--ink);
}

.page-about .about-cases__intro {
  margin: 1rem 0 0;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .about-cases__board {
  display: grid;
  gap: clamp(1.4rem, 4vw, 3rem);
  align-items: start;
}

.page-about .about-cases__count {
  background: var(--pine-900);
  color: var(--cream);
  border-radius: var(--radius-card);
  padding: clamp(1.4rem, 4vw, 2.2rem);
  box-shadow: var(--about-shadow);
}

.page-about .about-cases__big {
  display: block;
  font-family: var(--font-num);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: clamp(3.2rem, 11vw, 5.4rem);
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--volt);
}

.page-about .about-cases__unit {
  display: block;
  margin-top: .5rem;
  font-size: .95rem;
  letter-spacing: .06em;
  color: rgba(246, 237, 222, .8);
}

.page-about .about-cases__note {
  margin: 1.1rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(237, 231, 220, .2);
  font-size: .93rem;
  line-height: 1.68;
  color: rgba(246, 237, 222, .82);
}

.page-about .about-cases__rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-about .about-cases__rule {
  border-left: 2px solid var(--soil-500);
  padding: .2rem 0 .2rem clamp(1rem, 2.4vw, 1.5rem);
}

.page-about .about-cases__rule-idx {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--soil-700);
  margin-bottom: .45rem;
}

.page-about .about-cases__rule .h3 {
  color: var(--ink);
}

.page-about .about-cases__rule p {
  margin: 0;
  font-size: .96rem;
  line-height: 1.68;
  color: var(--ink-soft);
}

.page-about .about-cases__filters {
  margin-top: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid rgba(29, 21, 18, .14);
}

.page-about .about-cases__filters-label {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--clay);
  margin-bottom: .9rem;
}

.page-about .about-cases__filters .chip {
  border-color: rgba(29, 21, 18, .2);
  color: var(--ink-soft);
  background: transparent;
}

.page-about .about-cases__filters .chip.is-active {
  background: var(--pine-900);
  border-color: var(--pine-900);
  color: var(--volt);
}

.page-about .about-cases__filters-note {
  margin: 1rem 0 0;
  max-width: 60ch;
  font-size: .94rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .about-cases__filters-note a {
  color: var(--soil-700);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 58, 34, .35);
}

/* ============ 合作生态 ============ */
.page-about .about-eco {
  background: var(--cream-dim);
  color: var(--ink);
  padding: clamp(3rem, 8vw, 5rem) 0;
}

.page-about .about-eco .about-kicker {
  color: var(--soil-700);
}

.page-about .about-eco__head {
  max-width: 52ch;
  margin-bottom: clamp(1.8rem, 5vw, 2.8rem);
}

.page-about .about-eco__head .h2 {
  color: var(--ink);
}

.page-about .about-eco__intro {
  margin: 1rem 0 0;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .about-eco__wall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(29, 21, 18, .12);
  border-top: 1px solid rgba(29, 21, 18, .12);
  border-bottom: 1px solid rgba(29, 21, 18, .12);
}

.page-about .about-eco__item {
  background: var(--cream-dim);
  padding: clamp(1.3rem, 3.4vw, 2rem);
  transition: background .2s var(--ease), padding-left .2s var(--ease);
  outline: none;
}

.page-about .about-eco__item:hover,
.page-about .about-eco__item:focus,
.page-about .about-eco__item:focus-within {
  background: var(--cream);
  padding-left: clamp(1.5rem, 4vw, 2.6rem);
}

.page-about .about-eco__type {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--soil-700);
  margin-bottom: .6rem;
}

.page-about .about-eco__item .h3 {
  color: var(--ink);
}

.page-about .about-eco__desc {
  margin: 0;
  font-size: .96rem;
  line-height: 1.66;
  color: var(--ink-soft);
}

.page-about .about-eco__more {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .3s var(--ease);
}

.page-about .about-eco__more > div {
  overflow: hidden;
}

.page-about .about-eco__item:hover .about-eco__more,
.page-about .about-eco__item:focus .about-eco__more,
.page-about .about-eco__item:focus-within .about-eco__more {
  grid-template-rows: 1fr;
}

.page-about .about-eco__more p {
  margin: 0;
  padding-top: .9rem;
  font-size: .93rem;
  line-height: 1.68;
  color: var(--ink-soft);
  border-top: 1px solid rgba(29, 21, 18, .12);
  margin-top: .9rem;
}

.page-about .about-eco__foot {
  margin: clamp(1.6rem, 4vw, 2.2rem) 0 0;
  font-size: .96rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-about .about-eco__foot a {
  color: var(--soil-700);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(140, 58, 34, .35);
}

/* ============ 赛季观 ============ */
.page-about .about-creed {
  background: var(--cream-dim);
  padding: 0 0 clamp(3.4rem, 9vw, 5.6rem);
}

.page-about .about-creed__band {
  position: relative;
  overflow: hidden;
  height: clamp(150px, 26vw, 300px);
  margin-bottom: clamp(-4.5rem, -9vw, -2.5rem);
}

.page-about .about-creed__band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
  filter: saturate(.78) contrast(1.05);
}

.page-about .about-creed__band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(140, 58, 34, .18), rgba(16, 56, 44, .5));
}

.page-about .about-creed__panel {
  position: relative;
  background: var(--soil-700);
  color: var(--cream);
  padding: clamp(1.8rem, 5vw, 3.2rem) clamp(1.4rem, 4vw, 3rem) clamp(2rem, 5vw, 3.4rem);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), 0 100%);
  box-shadow: var(--about-shadow);
}

.page-about .about-creed__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 4.2vw, 2.7rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  margin: 0 0 1.1rem;
  color: var(--cream);
  max-width: 22ch;
}

.page-about .about-creed__text {
  margin: 0 0 1.8rem;
  max-width: 56ch;
  line-height: 1.74;
  color: rgba(246, 237, 222, .88);
}

.page-about .about-creed__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-about .about-creed__actions .btn--outline {
  border-color: rgba(246, 237, 222, .5);
  color: var(--cream);
}

.page-about .about-creed__actions .btn--outline:hover {
  border-color: var(--volt);
  color: var(--volt);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-about .about-eco__wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-tl__item {
    grid-template-columns: minmax(120px, 2.4fr) minmax(0, 7.6fr);
    gap: clamp(1.4rem, 3.4vw, 3rem);
  }

  .page-about .about-tl__year {
    position: sticky;
    top: 6.6rem;
    flex-direction: column;
    align-items: flex-start;
    gap: .35rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 4.4fr) minmax(0, 7.6fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-team__cards {
    align-content: start;
  }

  .page-about .about-cases__board {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-eco__item {
    min-height: 160px;
  }

  .page-about .about-creed__panel {
    margin: 0 clamp(0rem, 4vw, 3.5rem);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__inner {
    padding-right: 6%;
  }

  .page-about .about-hero__title {
    max-width: 20ch;
  }
}

@media (hover: none) {
  .page-about .about-team__rhythm,
  .page-about .about-eco__more {
    grid-template-rows: 1fr;
  }

  .page-about .about-eco__item {
    padding-left: clamp(1.3rem, 3.4vw, 2rem);
  }
}

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

  .page-about .about-team__card:hover,
  .page-about .about-team__card:focus-visible,
  .page-about .about-team__card:focus-within {
    transform: none;
  }
}