/* ---------- page-about · 品牌档案 ---------- */

.page-about {
  background: var(--warm-white);
  color: var(--ink);
}

.page-about :is(.about-hero__lead, .about-lede, .about-stage__body, .about-wheel__desc, .about-flow p, .about-scenes__desc, .about-team p, .about-partners__text, .about-visitors__note, .about-next__text span) {
  font-family: var(--font-body);
  line-height: 1.85;
}

.page-about h2 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 8px 0 12px;
  color: var(--green-deep);
}

.page-about h3 {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.35;
  margin: 0 0 8px;
}

.page-about .section-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--indigo);
  margin: 0 0 6px;
}

.page-about .about-lede {
  font-size: clamp(15px, 1.6vw, 17px);
  color: #3c4a45;
  max-width: 40em;
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--green-deep);
  color: var(--warm-white);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
}

.page-about .about-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(108deg, rgba(23, 63, 53, 0.97) 0%, rgba(23, 63, 53, 0.92) 46%, rgba(75, 63, 114, 0.84) 100%),
    repeating-linear-gradient(90deg, rgba(246, 241, 231, 0.05) 0 1px, transparent 1px 24px);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg,
    var(--spring) 0 25%,
    var(--summer) 25% 50%,
    var(--autumn) 50% 75%,
    var(--winter) 75% 100%);
}

.page-about .about-hero__inner {
  position: relative;
  padding-top: clamp(22px, 4vw, 40px);
  padding-bottom: clamp(46px, 8vw, 96px);
}

.page-about .about-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(20px, 4vw, 36px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(246, 241, 231, 0.7);
}

.page-about .about-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(246, 241, 231, 0.4);
}

.page-about .about-hero .breadcrumb__list a {
  color: rgba(246, 241, 231, 0.84);
  text-decoration: none;
}

.page-about .about-hero .breadcrumb__list a:hover,
.page-about .about-hero .breadcrumb__list a:focus-visible {
  color: var(--spring);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-hero__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--spring);
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--path);
}

.page-about .about-hero__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 16px 0 20px;
  max-width: 16em;
  color: var(--warm-white);
}

.page-about .about-hero__lead {
  font-size: clamp(16px, 1.7vw, 19px);
  color: rgba(246, 241, 231, 0.88);
  max-width: 34em;
  margin: 0;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 26px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-about .about-hero__link {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--warm-white);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid rgba(246, 241, 231, 0.4);
}

.page-about .about-hero__link:hover,
.page-about .about-hero__link:focus-visible {
  color: var(--spring);
  border-bottom-color: var(--spring);
}

/* ---------- 历程 ---------- */

.page-about .about-timeline {
  padding: clamp(46px, 8vw, 92px) 0;
  background-color: var(--warm-white);
  background-image:
    repeating-linear-gradient(0deg, rgba(167, 179, 174, 0.2) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(167, 179, 174, 0.2) 0 1px, transparent 1px 24px);
}

.page-about .about-timeline__grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 4vw, 40px);
}

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

.page-about .about-years__item {
  flex: 0 0 auto;
}

.page-about .about-years__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 0 0 10px 0;
  background: var(--card-white);
  color: var(--green-deep);
  text-decoration: none;
  font-size: 13px;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-years__link .mono {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-about .about-years__link:hover,
.page-about .about-years__link:focus-visible {
  border-color: var(--path);
  background: var(--mist);
}

.page-about .about-stage {
  position: relative;
  background: var(--card-white);
  border: 1px solid var(--line);
  border-top: 6px solid var(--stage-accent, var(--spring));
  border-radius: 0 0 18px 0;
  padding: clamp(18px, 3vw, 30px);
  margin-bottom: 16px;
  scroll-margin-top: calc(var(--header-h) + 28px);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-about .about-stage:hover {
  transform: translateY(-3px);
  border-color: var(--stage-accent, var(--spring));
}

.page-about #stage-2019 { --stage-accent: var(--spring); }
.page-about #stage-2021 { --stage-accent: var(--summer); }
.page-about #stage-2023 { --stage-accent: var(--autumn); }
.page-about #stage-2024 { --stage-accent: var(--indigo); }
.page-about #stage-2025 { --stage-accent: var(--winter); }

.page-about .about-stage__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.page-about .about-stage__year {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: 0.02em;
  color: var(--green-deep);
  line-height: 1;
}

.page-about .about-stage__title {
  color: var(--ink);
  margin-bottom: 10px;
}

.page-about .about-stage__body {
  font-size: 15.5px;
  color: #3c4a45;
  margin: 0;
}

.page-about .tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  border-radius: 0 0 8px 0;
  white-space: nowrap;
}

.page-about .tag--spring { background: var(--spring); color: var(--ink); }
.page-about .tag--summer { background: var(--summer); color: var(--warm-white); }
.page-about .tag--autumn { background: var(--autumn); color: var(--warm-white); }
.page-about .tag--indigo { background: var(--indigo); color: var(--warm-white); }
.page-about .tag--winter { background: var(--winter); color: var(--green-deep); }

/* ---------- 图框 ---------- */

.page-about .about-figure {
  margin: 0 0 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--autumn);
  border-radius: 0 0 18px 0;
  overflow: hidden;
  background: var(--card-white);
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-figure figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: #4c5b56;
  padding: 12px 16px;
  background: var(--mist);
}

/* ---------- 四季色轮 ---------- */

.page-about .about-wheel {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--green-deep);
  color: var(--warm-white);
}

.page-about .about-wheel h2 {
  color: var(--warm-white);
}

.page-about .about-wheel .section-index {
  color: var(--spring);
}

.page-about .about-wheel .about-lede {
  color: rgba(246, 241, 231, 0.8);
}

.page-about .about-wheel__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
}

.page-about .about-wheel__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 176px;
  padding: 22px 20px 26px;
  background: var(--tile, var(--spring));
  color: var(--tile-ink, var(--ink));
  border-radius: 0 0 18px 0;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .about-wheel__item::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, transparent 48%, rgba(20, 32, 29, 0.22) 50%);
}

.page-about .about-wheel__item:hover,
.page-about .about-wheel__item:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 16px 30px rgba(16, 44, 36, 0.35);
}

.page-about .about-wheel__item--deep { --tile: #173F35; --tile-ink: #F6F1E7; box-shadow: inset 0 0 0 1px rgba(246, 241, 231, 0.3); }
.page-about .about-wheel__item--summer { --tile: #2E6F8E; --tile-ink: #FFFFFF; }
.page-about .about-wheel__item--autumn { --tile: #C86B2C; --tile-ink: #FFFFFF; }
.page-about .about-wheel__item--winter { --tile: #C9D2D0; --tile-ink: #173F35; }

.page-about .about-wheel__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  opacity: 0.8;
  margin: 0;
}

.page-about .about-wheel__name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  margin: 0;
  color: inherit;
}

.page-about .about-wheel__desc {
  font-size: 14.5px;
  margin: 0;
  opacity: 0.94;
}

/* ---------- 审核流程 ---------- */

.page-about .about-review {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--mist);
}

.page-about .about-review__inner {
  display: grid;
  gap: 26px;
  align-items: start;
}

.page-about .about-flow {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
}

.page-about .about-flow__step {
  position: relative;
  background: var(--card-white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--flow-accent, var(--spring));
  border-radius: 0 14px 0 0;
  padding: 16px 18px 18px 58px;
}

.page-about .about-flow__step--spring { --flow-accent: var(--spring); }
.page-about .about-flow__step--summer { --flow-accent: var(--summer); }
.page-about .about-flow__step--autumn { --flow-accent: var(--autumn); }

.page-about .about-flow__no {
  position: absolute;
  left: 16px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--flow-accent, var(--spring));
}

.page-about .about-flow__step h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--ink);
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 14.5px;
  color: #3c4a45;
}

.page-about .about-cadence {
  margin-top: 22px;
  background: var(--card-white);
  border: 1px dashed var(--line);
  border-radius: 0 0 14px 0;
  padding: 16px 18px;
}

.page-about .about-cadence__lead {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  margin: 0 0 12px;
  color: #3c4a45;
}

.page-about .about-cadence__lead .mono {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--path);
}

.page-about .about-cadence__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-cadence__list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 10px;
  border-left: 3px solid var(--line);
  font-size: 12.5px;
  color: #4c5b56;
}

.page-about .about-cadence__list .mono {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.1;
  color: var(--green-deep);
}

.page-about .about-figure--review {
  border-left-color: var(--summer);
  margin: 0;
}

/* ---------- 场景 ---------- */

.page-about .about-scenes {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--warm-white);
}

.page-about .about-scenes__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  list-style: none;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
}

.page-about .about-scenes__item {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--card-white);
  border: 1px solid var(--line);
  border-radius: 0 18px 0 0;
  border-bottom: 5px solid var(--mist);
}

.page-about .about-scenes__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--wine);
  margin: 0 0 8px;
}

.page-about .about-scenes__item h3 {
  color: var(--green-deep);
  margin-bottom: 8px;
}

.page-about .about-scenes__desc {
  margin: 0;
  font-size: 14.5px;
  color: #3c4a45;
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--green-deep);
  color: var(--warm-white);
}

.page-about .about-team h2 {
  color: var(--warm-white);
}

.page-about .about-team .section-index {
  color: var(--winter);
}

.page-about .about-team .about-lede {
  color: rgba(246, 241, 231, 0.8);
}

.page-about .about-team__inner {
  display: grid;
  gap: 30px;
  align-items: start;
}

.page-about .about-team__list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(246, 241, 231, 0.16);
  border: 1px solid rgba(246, 241, 231, 0.2);
  border-radius: 0 0 18px 0;
  overflow: hidden;
}

.page-about .about-team__list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  grid-template-areas:
    "no name"
    "no desc";
  gap: 2px 10px;
  padding: 14px 16px;
  background: var(--green-deep);
}

.page-about .about-team__list .mono {
  grid-area: no;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--spring);
  padding-top: 3px;
}

.page-about .about-team__list strong {
  grid-area: name;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16px;
  color: var(--warm-white);
}

.page-about .about-team__list span:last-child {
  grid-area: desc;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(246, 241, 231, 0.76);
}

.page-about .about-partners {
  padding: 24px 22px 26px;
  background: rgba(246, 241, 231, 0.07);
  border: 1px solid rgba(246, 241, 231, 0.24);
  border-top: 6px solid var(--autumn);
  border-radius: 0 0 18px 0;
}

.page-about .about-partners__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--autumn);
  margin: 0 0 10px;
}

.page-about .about-partners__title {
  color: var(--warm-white);
  font-size: 19px;
  margin-bottom: 12px;
}

.page-about .about-partners__text {
  font-size: 14.5px;
  color: rgba(246, 241, 231, 0.82);
  margin: 0 0 12px;
}

.page-about .about-partners__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--warm-white);
  text-decoration: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--path);
}

.page-about .about-partners__link:hover,
.page-about .about-partners__link:focus-visible {
  color: var(--path);
}

/* ---------- 访客习惯 ---------- */

.page-about .about-visitors {
  padding: clamp(46px, 8vw, 92px) 0;
  background: var(--mist);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 4vw, 38px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 0 0 18px 0;
  overflow: hidden;
}

.page-about .about-stats__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 16px;
  background: var(--card-white);
}

.page-about .about-stats__num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--green-deep);
}

.page-about .about-stats__label {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.6;
  color: #4c5b56;
}

.page-about .about-visitors__note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 15px;
  color: #3c4a45;
  max-width: 44em;
  padding-left: 14px;
  border-left: 3px solid var(--indigo);
}

/* ---------- 下一步 ---------- */

.page-about .about-next {
  padding: clamp(46px, 8vw, 88px) 0 clamp(52px, 8vw, 96px);
  background: var(--warm-white);
}

.page-about .about-next__list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
}

.page-about .about-next__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  background: var(--card-white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--indigo);
  border-radius: 0 0 14px 0;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  border-left-color: var(--path);
  background: var(--mist);
  transform: translateY(-2px);
}

.page-about .about-next__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-about .about-next__text strong {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 16px;
  color: var(--green-deep);
}

.page-about .about-next__text span {
  font-size: 13.5px;
  color: #4c5b56;
}

.page-about .about-next__arrow {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--path);
  white-space: nowrap;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-about .about-wheel__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .about-review__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-about .about-team__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(28px, 4vw, 48px);
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-scenes__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-scenes__item:nth-child(1) { grid-column: span 4; }
  .page-about .about-scenes__item:nth-child(2) { grid-column: span 2; }
  .page-about .about-scenes__item:nth-child(3) { grid-column: span 2; }
  .page-about .about-scenes__item:nth-child(4) { grid-column: span 4; }
}

@media (min-width: 900px) {
  .page-about .about-timeline__grid {
    grid-template-columns: 128px minmax(0, 1fr);
    column-gap: clamp(28px, 4vw, 52px);
    row-gap: 0;
    align-items: start;
  }

  .page-about .about-years {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .about-years__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-about .about-years__link {
    width: 100%;
    justify-content: space-between;
    padding: 8px 12px;
    border-left: 3px solid var(--line);
    border-radius: 0;
  }

  .page-about .about-years__link:hover,
  .page-about .about-years__link:focus-visible {
    border-left-color: var(--path);
    border-color: var(--line);
    border-left-color: var(--path);
  }
}

@media (min-width: 1100px) {
  .page-about .about-wheel__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-about .about-wheel__item {
    min-height: 220px;
  }

  .page-about .about-hero__title {
    max-width: 15em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stage,
  .page-about .about-wheel__item,
  .page-about .about-next__link {
    transition: none;
  }

  .page-about .about-stage:hover,
  .page-about .about-wheel__item:hover,
  .page-about .about-wheel__item:focus-within,
  .page-about .about-next__link:hover {
    transform: none;
  }
}
<<<END>>>