.page-about {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .about-crumb {
  background: var(--paper-2);
  border-bottom: 1px solid var(--hairline);
}

.page-about .about-crumb .wrap {
  padding-top: 13px;
  padding-bottom: 13px;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 44px 0 60px;
  color: var(--paper);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(255, 106, 0, .22) 0%, rgba(255, 106, 0, 0) 54%),
    linear-gradient(158deg, #061c14 0%, #0c3b2e 64%, #0a2f24 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -34%;
  width: 78%;
  height: 76%;
  background: repeating-linear-gradient(118deg, rgba(244, 182, 63, .11) 0 1px, transparent 1px 36px);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-about .about-hero__rail {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-about .about-hero__rail-line {
  display: block;
  width: 34px;
  height: 1px;
  background: var(--orange);
}

.page-about .about-hero__rail-note {
  color: rgba(245, 240, 230, .6);
}

.page-about .about-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 3.7rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: #fff;
  max-width: 13em;
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.9;
  color: rgba(245, 240, 230, .85);
}

.page-about .about-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid rgba(245, 240, 230, .18);
}

.page-about .about-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-about .about-hero__stat .score-num {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-about .about-hero__stat-label {
  font-size: .8rem;
  color: rgba(245, 240, 230, .7);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 团队分工 ---------- */

.page-about .about-roles {
  padding: 60px 0;
  background: var(--paper);
}

.page-about .about-roles__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 32px;
}

.page-about .about-roles__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .role-card {
  position: relative;
  padding: 20px 18px 16px;
  background: #fbf7ef;
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  box-shadow: 7px 7px 0 -1px var(--paper-2);
  transition: transform var(--dur) ease-out, box-shadow var(--dur) ease-out;
}

.page-about .role-card:hover {
  transform: translateY(-3px);
  box-shadow: 7px 11px 0 -1px rgba(207, 199, 184, .7);
}

.page-about .role-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-about .role-card__num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--green-deep);
}

.page-about .role-card__num small {
  margin-left: 4px;
  font-size: .74rem;
  font-weight: 500;
  color: var(--stone);
}

.page-about .role-card__body {
  margin: 0;
  font-size: .93rem;
  line-height: 1.82;
  color: #2b3531;
}

.page-about .role-card__link {
  margin: 14px 0 0;
  padding-top: 11px;
  border-top: 1px dashed var(--hairline);
  font-size: .8rem;
  color: var(--stone);
}

.page-about .role-card__link a {
  color: var(--green-deep);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
}

.page-about .role-card__link a:hover {
  color: var(--orange);
}

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

.page-about .about-roles__figure .media-frame {
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  background: var(--paper-2);
}

.page-about .about-roles__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-roles__figure .media-caption {
  margin-top: 10px;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 品牌主张 ---------- */

.page-about .about-claim {
  padding: 60px 0;
  color: var(--paper);
  background: linear-gradient(172deg, #071f17 0%, #0c3b2e 100%);
}

.page-about .about-claim .section-title {
  color: var(--paper);
}

.page-about .about-claim .section-lead {
  color: rgba(245, 240, 230, .76);
}

.page-about .about-claim__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 32px;
}

.page-about .about-claim .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-claim .tab-btn {
  min-height: 44px;
  padding: 9px 20px;
  font-family: var(--font-head);
  font-size: .9rem;
  font-weight: 700;
  color: rgba(245, 240, 230, .82);
  background: transparent;
  border: 1px solid rgba(245, 240, 230, .32);
  border-radius: var(--r-island);
  cursor: pointer;
  transition: background var(--dur) ease-out, color var(--dur) ease-out, border-color var(--dur) ease-out;
}

.page-about .about-claim .tab-btn[aria-selected="true"] {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

.page-about .about-claim .tab-btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-about .about-claim .tab-panel {
  margin-top: 20px;
  padding: 22px 20px;
  background: rgba(245, 240, 230, .06);
  border: 1px solid rgba(245, 240, 230, .16);
  border-radius: var(--r-card);
}

.page-about .about-claim .tab-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--amber);
}

.page-about .about-claim .tab-panel p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.88;
  color: rgba(245, 240, 230, .84);
}

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

.page-about .about-claim__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(245, 240, 230, .2);
  border-radius: var(--r-card);
}

.page-about .about-claim__figure .media-caption {
  margin-top: 10px;
  font-size: .8rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, .6);
}

/* ---------- 发展历程 ---------- */

.page-about .about-timeline {
  padding: 60px 0;
  background-color: var(--paper-2);
  background-image:
    linear-gradient(rgba(207, 199, 184, .4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(207, 199, 184, .4) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-about .about-timeline .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.page-about .about-timeline .tab-btn {
  min-height: 44px;
  padding: 9px 22px;
  font-family: var(--font-mono);
  font-size: .98rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: var(--r-island);
  cursor: pointer;
  transition: background var(--dur) ease-out, color var(--dur) ease-out, box-shadow var(--dur) ease-out;
}

.page-about .about-timeline .tab-btn[aria-selected="true"] {
  color: var(--paper);
  background: var(--green-deep);
  border-color: var(--green-deep);
  box-shadow: inset 0 -3px 0 var(--orange);
}

.page-about .about-timeline .tab-btn:focus-visible {
  outline: 2px solid var(--green-deep);
  outline-offset: 3px;
}

.page-about .about-timeline .tab-panel {
  margin-top: 20px;
  padding: 24px 20px;
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-left: 5px solid var(--orange);
  border-radius: 0 var(--r-card) var(--r-card) 0;
  box-shadow: 8px 8px 0 -2px rgba(207, 199, 184, .6);
}

.page-about .about-timeline .tab-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  font-weight: 800;
  color: var(--green-deep);
}

.page-about .about-timeline .tab-panel p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.88;
  color: #2b3531;
}

.page-about .about-timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__figure {
  margin: 34px 0 0;
}

.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  object-fit: cover;
}

.page-about .about-timeline__figure .media-caption {
  margin-top: 10px;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 资料方法 ---------- */

.page-about .about-method {
  padding: 60px 0;
  background: #e7ecf1;
}

.page-about .about-method__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .method-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: 20px 18px;
  background: #fbf9f3;
  border: 1px solid #d6dee6;
  border-radius: var(--r-card);
}

.page-about .method-item__marker {
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  color: var(--blue-grey);
}

.page-about .method-item__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--green-deep);
}

.page-about .method-item__body p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: #333d46;
}

/* ---------- 合作生态 ---------- */

.page-about .about-partners {
  padding: 60px 0;
  background: var(--paper);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-about .about-partners__text {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: .96rem;
  line-height: 1.9;
  color: #333d38;
}

.page-about .about-partners__lead .btn {
  margin-top: 22px;
}

.page-about .about-partners__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-about .partner-stat {
  padding: 18px 16px;
  color: var(--paper);
  background: var(--green-night);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-card);
}

.page-about .partner-stat .score-num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 3vw, 1.95rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
}

.page-about .partner-stat__label {
  display: block;
  font-size: .8rem;
  line-height: 1.5;
  color: rgba(245, 240, 230, .74);
}

/* ---------- 加入合作 ---------- */

.page-about .about-join {
  padding: 60px 0 76px;
  background: linear-gradient(200deg, #0c3b2e 0%, #061c14 100%);
}

.page-about .about-join__panel {
  padding: 28px 20px;
  border: 1px solid rgba(245, 240, 230, .18);
  border-radius: var(--r-card);
  background: rgba(6, 28, 20, .42);
}

.page-about .about-join__title {
  margin-top: 12px;
  color: var(--paper);
}

.page-about .about-join__items {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 26px;
}

.page-about .join-item {
  padding-top: 16px;
  border-top: 1px dashed rgba(245, 240, 230, .24);
}

.page-about .join-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--amber);
}

.page-about .join-item p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.86;
  color: rgba(245, 240, 230, .82);
}

.page-about .about-join__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: 28px;
}

.page-about .about-join__note {
  flex: 1 1 260px;
  margin: 0;
  font-size: .82rem;
  line-height: 1.75;
  color: rgba(245, 240, 230, .62);
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-about .about-claim .tab-panel,
  .page-about .about-timeline .tab-panel {
    padding: 26px 24px;
  }

  .page-about .role-card {
    padding: 22px 20px 18px;
  }
}

@media (min-width: 760px) {
  .page-about .about-roles__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-join__items {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 54px 0 76px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 138px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-hero__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 8px;
  }

  .page-about .about-roles,
  .page-about .about-claim,
  .page-about .about-timeline,
  .page-about .about-method,
  .page-about .about-partners {
    padding: 76px 0;
  }

  .page-about .about-claim__body {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 34px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-about .about-roles__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .about-roles__figure {
    position: sticky;
    top: 104px;
  }

  .page-about .about-partners__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .86fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-timeline .tab-panel {
    padding: 30px 28px;
  }
}
<<<END>>>