/* ============ 品牌价值页 · page-about ============ */
.page-about {
  --about-rail-w: 216px;
  background: var(--sand);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 44px;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: min(660px, 92vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%,
      rgba(255, 176, 32, .42),
      rgba(127, 212, 245, .30) 46%,
      rgba(27, 127, 212, 0) 72%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.4vw, 60px);
  line-height: 1.1;
  letter-spacing: -.02em;
}

.page-about .about-hero__title em {
  font-style: normal;
  position: relative;
  white-space: nowrap;
  background-image: linear-gradient(transparent 62%, rgba(255, 176, 32, .55) 62%);
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

.page-about .about-hero__lede {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-70);
  max-width: 62ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(160deg, var(--sky), var(--ocean) 55%, var(--deep));
  box-shadow: var(--shadow-soft);
}

.page-about .about-hero__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-about .about-hero__caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 18px;
  border-radius: var(--r-md);
  background: rgba(7, 26, 47, .80);
  color: var(--on-deep);
  font-size: 13.5px;
  line-height: 1.5;
  backdrop-filter: blur(6px);
}

.page-about .about-hero__caption-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--sun);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏数字条 ---------- */
.page-about .about-stats {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 36px auto 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px 16px 22px;
  border-left: 4px solid var(--sun);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: linear-gradient(120deg, rgba(227, 245, 239, .95), rgba(255, 247, 236, 0));
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 7.5vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat__label {
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink-70);
}

/* ---------- 里约来源 ---------- */
.page-about .about-rio {
  position: relative;
  overflow: hidden;
  padding-block: clamp(48px, 9vw, 88px);
  background: linear-gradient(158deg, #071A2F 0%, #0B3C6E 58%, #124a80 100%);
  color: var(--on-deep);
}

.page-about .about-rio::after {
  content: "";
  position: absolute;
  left: -14%;
  bottom: -46%;
  width: 78%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 176, 32, .30), rgba(255, 176, 32, 0) 68%);
  pointer-events: none;
}

.page-about .about-rio__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-about .eyebrow--on-deep {
  color: var(--sky);
}

.page-about .eyebrow--on-deep::before {
  background: var(--sky);
}

.page-about .about-rio__title {
  color: var(--on-deep);
}

.page-about .about-rio__copy p {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(234, 243, 251, .86);
}

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

.page-about .about-rio__palette {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .swatch {
  position: relative;
  min-height: 106px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 3px;
  padding: 16px 16px 14px;
  border-radius: var(--r-md);
  overflow: hidden;
  color: #fff;
}

.page-about .swatch::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 76%;
  background: linear-gradient(to top, rgba(7, 26, 47, .74), rgba(7, 26, 47, 0));
}

.page-about .swatch__name,
.page-about .swatch__hex {
  position: relative;
  z-index: 1;
}

.page-about .swatch__name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-about .swatch__hex {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .78);
  font-variant-numeric: tabular-nums;
}

.page-about .swatch--sun { background: #FFB020; }
.page-about .swatch--ocean { background: #1B7FD4; }
.page-about .swatch--tropic { background: #12A87A; }
.page-about .swatch--coral { background: #FF6B4A; }

/* ---------- 两条主线 ---------- */
.page-about .about-lines__head {
  max-width: 68ch;
}

.page-about .about-lines__head .lede {
  margin-top: 14px;
  color: var(--ink-70);
  line-height: 1.8;
}

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

.page-about .about-line {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 30px;
  border-radius: var(--r-lg);
  overflow: hidden;
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -22%;
  width: 62%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .22), transparent 70%);
  pointer-events: none;
}

.page-about .about-line h3 {
  position: relative;
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-line p {
  position: relative;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
}

.page-about .about-line--schedule {
  background: linear-gradient(158deg, #0B3C6E, #1B7FD4);
  color: var(--on-deep);
}

.page-about .about-line--schedule p {
  color: rgba(234, 243, 251, .86);
}

.page-about .about-line--report {
  background: linear-gradient(158deg, #FFD466, #FFB020);
  color: var(--ink);
}

.page-about .about-line--report p {
  color: rgba(7, 26, 47, .78);
}

.page-about .about-line__list {
  position: relative;
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-line__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-about .about-line__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sun);
}

.page-about .about-line--report .about-line__list li::before {
  background: var(--deep);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-team__figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(150deg, var(--mint), var(--sky));
  box-shadow: var(--shadow-card);
}

.page-about .about-team__figure .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-about .about-team__copy p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 58ch;
}

.page-about .about-team__roster {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .roster-item {
  padding: 18px 20px 18px 22px;
  border-left: 3px solid var(--ocean);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(227, 245, 239, .7);
}

.page-about .roster-item dt {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--deep);
}

.page-about .roster-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
  color: var(--sun);
  font-variant-numeric: tabular-nums;
}

.page-about .roster-item dd {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-70);
}

/* ---------- 数据把关 ---------- */
.page-about .about-sourcing {
  background: linear-gradient(180deg, var(--mint) 0%, rgba(227, 245, 239, .35) 100%);
}

.page-about .about-sourcing__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-sourcing__copy p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 60ch;
}

.page-about .about-sourcing__nodes {
  display: grid;
  gap: 16px;
}

.page-about .sourcing-node {
  position: relative;
  padding: 24px 22px 22px;
  border-radius: var(--r-lg);
  background: #fff;
  border-top: 4px solid var(--sun);
  box-shadow: var(--shadow-card);
}

.page-about .sourcing-node--deep {
  border-top-color: var(--tropic);
}

.page-about .sourcing-node__num {
  font-family: var(--font-mono);
  font-size: clamp(46px, 12vw, 64px);
  font-weight: 700;
  line-height: 1;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
}

.page-about .sourcing-node--deep .sourcing-node__num {
  color: var(--tropic);
}

.page-about .sourcing-node__unit {
  margin-left: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-45);
}

.page-about .sourcing-node__label {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-70);
}

/* ---------- 赛季档案 ---------- */
.page-about .about-archive__head {
  max-width: 66ch;
}

.page-about .about-archive__head .lede {
  margin-top: 14px;
  color: var(--ink-70);
  line-height: 1.8;
}

.page-about .about-archive__banner {
  margin: 30px 0 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(120deg, var(--deep), var(--ocean) 60%, var(--sky));
}

.page-about .about-archive__banner .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-about .about-archive__body {
  margin-top: 30px;
}

.page-about .rail-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .rail-node {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--pill);
  background: rgba(11, 60, 110, .08);
  color: var(--deep);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background .25s var(--ease), color .25s var(--ease);
}

.page-about .rail-node:hover,
.page-about .rail-node:focus-visible {
  background: var(--deep);
  color: var(--on-deep);
}

.page-about .rail-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--sun);
  flex: none;
}

.page-about .archive-panel {
  padding: 24px 22px 26px 26px;
  border-radius: var(--r-md);
  border-left: 4px solid var(--ocean);
  background: var(--mint);
  scroll-margin-top: 110px;
}

.page-about .archive-panel + .archive-panel {
  margin-top: 16px;
}

.page-about .archive-panel:nth-child(even) {
  border-left-color: var(--sun);
}

.page-about .archive-panel__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ocean);
  font-variant-numeric: tabular-nums;
}

.page-about .archive-panel:nth-child(even) .archive-panel__tag {
  color: #B87A00;
}

.page-about .archive-panel h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--deep);
}

.page-about .archive-panel p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-70);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  background: linear-gradient(180deg, rgba(227, 245, 239, .55), rgba(255, 247, 236, 0));
}

.page-about .about-partners__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}

.page-about .about-partners__copy p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 58ch;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-partners__list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 18px;
  border-radius: var(--pill);
  background: #fff;
  font-size: 15px;
  color: var(--ink-70);
  box-shadow: var(--shadow-card);
}

.page-about .about-partners__list .data-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--deep);
  font-variant-numeric: tabular-nums;
}

.page-about .about-partners__btn {
  margin-top: 24px;
}

.page-about .about-partners__orbit {
  display: flex;
  justify-content: center;
}

.page-about .orbit-svg {
  width: min(320px, 82vw);
  height: auto;
}

.page-about .orbit-ring {
  fill: none;
  stroke: rgba(11, 60, 110, .18);
  stroke-width: 1.5;
}

.page-about .orbit-ring--inner {
  stroke: rgba(27, 127, 212, .34);
  stroke-dasharray: 6 9;
}

.page-about .orbit-dot {
  transition: transform .28s var(--ease), opacity .28s var(--ease);
  transform-box: fill-box;
  transform-origin: center;
}

.page-about .orbit-dot--sun { fill: #FFB020; }
.page-about .orbit-dot--ocean { fill: #1B7FD4; }
.page-about .orbit-dot--tropic { fill: #12A87A; }
.page-about .orbit-dot--coral { fill: #FF6B4A; }

.page-about .orbit-dots:hover .orbit-dot {
  opacity: .38;
}

.page-about .orbit-dots .orbit-dot:hover {
  opacity: 1;
  transform: scale(1.4);
}

.page-about .orbit-label {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  fill: var(--deep);
}

.page-about .orbit-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  fill: rgba(7, 26, 47, .50);
}

/* ---------- 做事标准 ---------- */
.page-about .about-standards {
  background: linear-gradient(180deg, rgba(227, 245, 239, .8), rgba(227, 245, 239, .25));
}

.page-about .about-standards__head {
  max-width: 64ch;
}

.page-about .about-standards__head .lede {
  margin-top: 14px;
  color: var(--ink-70);
  line-height: 1.8;
}

.page-about .standards-list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: std;
}

.page-about .standard-item {
  position: relative;
  padding: 22px 22px 24px 24px;
  border-radius: var(--r-lg);
  background: rgba(255, 247, 236, .92);
  border-left: 4px solid var(--sun);
  box-shadow: 0 16px 32px -30px rgba(11, 60, 110, .55);
  transition: transform .3s var(--ease);
}

.page-about .standard-item:hover {
  transform: translateY(-4px);
}

.page-about .standard-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ocean);
  font-variant-numeric: tabular-nums;
}

.page-about .standard-item h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--deep);
}

.page-about .standard-item p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-70);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  padding-block: clamp(48px, 9vw, 80px);
  background: linear-gradient(150deg, #071A2F, #0B3C6E 62%, #164b81);
  color: var(--on-deep);
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  right: -12%;
  top: -60%;
  width: 62%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 176, 32, .34), rgba(255, 176, 32, 0) 70%);
  pointer-events: none;
}

.page-about .about-cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 6vw, 40px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--on-deep);
}

.page-about .about-cta__copy p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(234, 243, 251, .84);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.page-about .about-cta__link {
  display: inline-flex;
  align-items: center;
  padding: 12px 22px;
  border-radius: var(--pill);
  border: 1px solid rgba(234, 243, 251, .45);
  color: var(--on-deep);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}

.page-about .about-cta__link:hover,
.page-about .about-cta__link:focus-visible {
  background: rgba(234, 243, 251, .14);
  border-color: rgba(234, 243, 251, .8);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-rio__palette {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 40px 0 60px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr .95fr;
    gap: 52px;
    align-items: center;
  }

  .page-about .about-hero__lede {
    font-size: 17px;
  }

  .page-about .about-lines__pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .about-line {
    padding: 34px 30px 36px;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 46px;
    align-items: center;
  }

  .page-about .about-sourcing__grid {
    grid-template-columns: 1.15fr .85fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-partners__grid {
    grid-template-columns: 1.1fr .9fr;
    gap: 48px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: 1.2fr .8fr;
    align-items: center;
    gap: 40px;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-about .about-archive__body {
    display: grid;
    grid-template-columns: var(--about-rail-w) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-archive__rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-about .rail-list {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    margin-bottom: 0;
    padding-bottom: 0;
  }

  .page-about .rail-node {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 18px;
    border-radius: var(--r-md);
    background: transparent;
    position: relative;
  }

  .page-about .rail-node::after {
    content: "";
    position: absolute;
    left: 24px;
    top: 100%;
    width: 2px;
    height: 4px;
    background: rgba(27, 127, 212, .28);
  }

  .page-about .rail-list li:last-child .rail-node::after {
    display: none;
  }

  .page-about .rail-node:hover,
  .page-about .rail-node:focus-visible {
    background: rgba(11, 60, 110, .07);
    color: var(--deep);
  }

  .page-about .rail-node:hover .rail-dot,
  .page-about .rail-node:focus-visible .rail-dot {
    box-shadow: 0 0 0 5px rgba(255, 176, 32, .28);
  }

  .page-about .archive-panel {
    padding: 30px 30px 32px 32px;
  }

  .page-about .archive-panel + .archive-panel {
    margin-top: 20px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    font-size: 62px;
  }

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

  .page-about .swatch {
    min-height: 124px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .orbit-dot,
  .page-about .standard-item,
  .page-about .rail-node,
  .page-about .about-cta__link {
    transition: none;
  }

  .page-about .standard-item:hover {
    transform: none;
  }
}