.page-about {
  background: var(--sand);
  color: var(--text);
  font-family: var(--sans);
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding-top: 18px;
}
.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--stone);
}
.page-about .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}
.page-about .breadcrumb__link {
  color: var(--stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step), border-color var(--step);
}
.page-about .breadcrumb__link:hover {
  color: var(--ink);
  border-bottom-color: var(--gold);
}
.page-about .breadcrumb__sep {
  color: var(--stone);
  opacity: .55;
}
.page-about .breadcrumb__current {
  color: var(--ink);
  font-weight: 500;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  margin-top: 18px;
  padding: clamp(30px, 5vw, 66px) 0 clamp(40px, 6vw, 84px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(214, 165, 76, .18), transparent 58%),
    linear-gradient(180deg, #f7f3ea 0%, #efe8d9 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108, 116, 128, .13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 116, 128, .13) 1px, transparent 1px);
  background-size: 120px 120px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
  pointer-events: none;
}
.page-about .about-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
}
.page-about .about-kicker {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--plum);
}
.page-about .about-hero__title {
  margin: 16px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 6.6vw, 66px);
  line-height: 1.15;
  letter-spacing: .005em;
  color: var(--ink);
  max-width: 17ch;
  text-wrap: balance;
}
.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: rgba(18, 22, 28, .76);
}
.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  align-self: end;
}
.page-about .about-fact {
  background: rgba(255, 255, 255, .82);
  padding: 16px 18px 18px;
}
.page-about .about-fact__key {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--stone);
}
.page-about .about-fact__val {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
}

/* ---------- 主体舞台 ---------- */
.page-about .about-stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 48px);
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(56px, 9vw, 120px);
}
.page-about .about-index {
  display: none;
}
.page-about .about-index__label {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--stone);
  border-bottom: 1px solid var(--line-gold);
}
.page-about .about-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-index__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 7px 9px;
  border-radius: var(--r-sm);
  font-size: 13.5px;
  color: var(--stone);
  text-decoration: none;
  transition: background var(--step), color var(--step);
}
.page-about .about-index__link:hover {
  background: rgba(214, 165, 76, .14);
  color: var(--ink);
}
.page-about .about-index__num {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--plum);
}

.page-about .about-flow {
  display: grid;
  gap: clamp(52px, 8vw, 108px);
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-about .rec {
  min-width: 0;
}
.page-about .rec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  align-items: start;
  padding-bottom: 16px;
  margin-bottom: clamp(22px, 3vw, 34px);
  border-bottom: 1px solid var(--line);
}
.page-about .rec__seal {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line-gold);
  background: linear-gradient(160deg, rgba(214, 165, 76, .2), rgba(74, 62, 99, .12));
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
}
.page-about .rec__title {
  margin: 3px 0 0;
  font-family: var(--serif);
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 700;
  line-height: 1.34;
  color: var(--ink);
  max-width: 24ch;
  text-wrap: balance;
}
.page-about .rec__text {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.92;
  color: rgba(18, 22, 28, .8);
  text-wrap: pretty;
}
.page-about .rec__text + .rec__text {
  margin-top: 1em;
}
.page-about .rec__intro {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3vw, 34px);
}
.page-about .rec__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 48px);
  align-items: start;
}
.page-about .rec__col {
  min-width: 0;
}
.page-about .rec__link {
  display: inline-block;
  margin-top: 20px;
  font-size: 13.5px;
  letter-spacing: .06em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 3px;
  transition: border-color var(--step), color var(--step);
}
.page-about .rec__link:hover {
  color: #8a6520;
  border-bottom-color: var(--gold);
}

/* 图片框 */
.page-about .rec__figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--line-gold);
}
.page-about .rec__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .rec__figcap {
  padding: 9px 16px 10px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold-hi);
  background: var(--ink);
  border-top: 1px solid var(--line-gold);
}

/* ---------- 02 栏目清单 ---------- */
.page-about .cat-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-about .cat {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx name"
    "idx desc";
  column-gap: 18px;
  row-gap: 4px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .cat__idx {
  grid-area: idx;
  padding-top: 5px;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--plum);
}
.page-about .cat__name {
  grid-area: name;
  margin: 0;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.page-about .cat__desc {
  grid-area: desc;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(18, 22, 28, .72);
}

/* ---------- 03 版本演进 ---------- */
.page-about .versions {
  position: relative;
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-gold);
  background: linear-gradient(165deg, var(--ink) 0%, #16273c 62%, #1b2e45 100%);
  color: var(--sand);
  overflow: hidden;
}
.page-about .versions::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(242, 220, 158, .16) 1px, transparent 1px);
  background-size: 8px 8px;
  opacity: .35;
  pointer-events: none;
}
.page-about .versions > * {
  position: relative;
  z-index: 1;
}
.page-about .vline {
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .vline__node {
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(242, 220, 158, .16);
}
.page-about .vline__node:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-about .vline__badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 13px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(242, 220, 158, .36);
  background: var(--ink-soft);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gold-hi);
}
.page-about .vline__node:last-child .vline__badge {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}
.page-about .vline__name {
  margin: 14px 0 8px;
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--sand);
}
.page-about .vline__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(245, 241, 232, .72);
}
.page-about .versions__foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid rgba(242, 220, 158, .2);
  align-items: start;
}
.page-about .versions__foot .rec__figure {
  max-width: 320px;
}
.page-about .versions__subtitle {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  color: var(--gold-hi);
}
.page-about .versions .rec__text {
  color: rgba(245, 241, 232, .8);
}
.page-about .versions .rec__link {
  color: var(--gold-hi);
  border-bottom-color: rgba(242, 220, 158, .45);
}
.page-about .versions .rec__link:hover {
  color: #fff;
  border-bottom-color: var(--gold-hi);
}

/* ---------- 换气带 ---------- */
.page-about .about-breath {
  padding: clamp(34px, 6vw, 76px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-about .about-breath__line {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(21px, 3.2vw, 32px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  max-width: 24ch;
}
.page-about .about-breath__sub {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 04 团队 ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}
.page-about .team-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .74);
  transition: border-color var(--step), transform var(--step);
}
.page-about .team-card:hover {
  border-color: rgba(214, 165, 76, .48);
}
.page-about .team-card__tag {
  display: inline-block;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-size: 11.5px;
  letter-spacing: .14em;
}
.page-about .team-card--edit .team-card__tag {
  background: rgba(74, 62, 99, .13);
  color: var(--plum);
}
.page-about .team-card--verify .team-card__tag {
  background: rgba(168, 91, 60, .12);
  color: var(--clay);
}
.page-about .team-card--front .team-card__tag {
  background: rgba(92, 122, 98, .14);
  color: var(--moss);
}
.page-about .team-card__name {
  margin: 14px 0 9px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}
.page-about .team-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(18, 22, 28, .74);
}

/* ---------- 05 评测 ---------- */
.page-about .criteria {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-about .criteria__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2vw, 24px);
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.page-about .criteria__num {
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--plum);
}
.page-about .criteria__body {
  min-width: 0;
}
.page-about .criteria__title {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}
.page-about .criteria__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: rgba(18, 22, 28, .76);
  max-width: 60ch;
}

/* ---------- 06 合作 ---------- */
.page-about .partner-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0 0 clamp(24px, 3vw, 34px);
  padding: 1px;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}
.page-about .partner {
  padding: 22px 20px 24px;
  background: rgba(255, 255, 255, .8);
}
.page-about .partner__tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-gold);
  font-size: 11px;
  letter-spacing: .16em;
  color: #8a6520;
}
.page-about .partner__desc {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(18, 22, 28, .74);
}

/* ---------- 收尾 ---------- */
.page-about .about-next {
  position: relative;
  padding: clamp(44px, 7vw, 88px) 0;
  border-top: 1px solid var(--line-gold);
  background: linear-gradient(160deg, var(--ink) 0%, #16273c 56%, var(--plum) 145%);
  color: var(--sand);
  overflow: hidden;
}
.page-about .about-next::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(242, 220, 158, .16) 1px, transparent 1px);
  background-size: 9px 9px;
  opacity: .35;
  pointer-events: none;
}
.page-about .about-next__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 40px);
  align-items: end;
}
.page-about .about-next__title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--sand);
}
.page-about .about-next__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 241, 232, .76);
  max-width: 36ch;
}
.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
}
.page-about .about-next__link {
  color: var(--gold-hi);
  font-size: 14.5px;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(242, 220, 158, .42);
  transition: color var(--step), border-color var(--step);
}
.page-about .about-next__link:hover {
  color: #ffffff;
  border-bottom-color: var(--gold-hi);
}

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

@media (min-width: 700px) {
  .page-about .partner-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .vline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2.4vw, 30px);
  }
  .page-about .vline__node {
    padding-bottom: 0;
    border-bottom: 0;
  }
  .page-about .vline__node::before {
    content: "";
    display: block;
    height: 1px;
    margin-bottom: 18px;
    background: linear-gradient(90deg, rgba(214, 165, 76, .75), rgba(214, 165, 76, .08));
  }
}

@media (min-width: 860px) {
  .page-about .cat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }
  .page-about .cat:nth-last-child(1):nth-child(odd) {
    grid-column: 1 / -1;
  }
  .page-about .rec__split {
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
  }
  .page-about .rec__split--media-right {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }
  .page-about .versions__foot {
    grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
    gap: clamp(28px, 4vw, 52px);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    margin-top: 22px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .8fr);
    align-items: end;
  }
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-about .about-stage {
    grid-template-columns: 178px minmax(0, 1fr);
    gap: clamp(40px, 6vw, 88px);
  }
  .page-about .about-index {
    display: block;
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (min-width: 1180px) {
  .page-about .criteria__item {
    grid-template-columns: 72px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .breadcrumb__link,
  .page-about .about-index__link,
  .page-about .team-card,
  .page-about .rec__link,
  .page-about .about-next__link {
    transition: none;
  }
}