/* ===== 品牌与团队 /team/ 页面专属样式 ===== */
.page-about {
  --about-gutter: clamp(16px, 4vw, 56px);
  --about-max: 1240px;
  --about-rail: 84px;
  position: relative;
  padding: calc(var(--top-h) + 20px) var(--about-gutter) 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  overflow-x: hidden;
}

.page-about .about-inner {
  width: 100%;
  max-width: var(--about-max);
  margin: 0 auto;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  max-width: var(--about-max);
  margin: 0 auto 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .14em;
  color: var(--mute);
}

.page-about .breadcrumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--mute);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--flare);
  border-bottom-color: var(--flare);
}

.page-about .breadcrumb__sep {
  margin: 0 .6em;
  color: var(--mute);
}

/* ---------- 首屏海报 ---------- */
.page-about .about-hero {
  position: relative;
  margin: 0 calc(var(--about-gutter) * -1);
  padding: 52px var(--about-gutter) 60px;
  background: var(--teal);
  color: var(--paper);
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-about .about-hero__eyebrow {
  color: var(--paper);
  opacity: .66;
  margin: 0 0 26px;
}

.page-about .about-hero__title {
  margin: 0 0 40px;
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: .96;
  letter-spacing: -.02em;
  max-width: 16em;
}

.page-about .about-hero__mark {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  color: var(--flare);
  border-bottom: 4px solid var(--flare);
  padding-bottom: .02em;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 44em;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: rgba(247, 245, 241, .88);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: rgba(247, 245, 241, .26);
  border: 1px solid rgba(247, 245, 241, .26);
}

.page-about .about-hero__fact {
  background: var(--teal);
  padding: 16px 12px;
}

.page-about .about-hero__fact dt {
  font-size: var(--fs-anno);
  letter-spacing: .18em;
  opacity: .68;
  line-height: 1.5;
}

.page-about .about-hero__fact dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--paper);
}

/* ---------- 图形容器 ---------- */
.page-about .about-figure {
  margin: 0 0 8px;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ink);
  background: var(--grid);
}

.page-about .about-figure--bleed {
  margin: 0 calc(var(--about-gutter) * -1) 0;
}

.page-about .about-figure--bleed img {
  border-left: 0;
  border-right: 0;
  max-height: 62vh;
  object-position: center 40%;
}

.page-about .about-figure--check {
  margin-top: 40px;
}

.page-about .about-figure--check img {
  border-color: rgba(247, 245, 241, .3);
}

.page-about .about-figure--check .img-frame__caption {
  color: rgba(247, 245, 241, .7);
}

.page-about .about-figure--square {
  max-width: 480px;
  margin: 40px 0 0;
}

.page-about .about-figure .img-frame__caption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .16em;
  color: var(--mute);
  line-height: 1.7;
}

/* ---------- 章节通用 ---------- */
.page-about .about-section {
  padding: 64px 0;
  border-top: var(--line-soft);
}

.page-about .about-section--indigo {
  margin: 0 calc(var(--about-gutter) * -1);
  padding: 64px var(--about-gutter);
  background: var(--indigo);
  color: var(--paper);
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-about .about-section--teal {
  margin: 0 calc(var(--about-gutter) * -1);
  padding: 64px var(--about-gutter);
  background: var(--teal);
  color: var(--paper);
  border-top: var(--line);
  border-bottom: var(--line);
}

/* ---------- 左刻度 + 右资料 ---------- */
.page-about .ledge {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-about .ledge__rail {
  display: none;
}

.page-about .ledge__body {
  min-width: 0;
}

.page-about .about-h2 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: var(--fs-head);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.01em;
}

.page-about .about-h2::after {
  content: "";
  display: block;
  width: 52px;
  height: 3px;
  margin-top: 16px;
  background: var(--flare);
}

.page-about .about-lead {
  margin: 0 0 34px;
  max-width: 46em;
  font-size: var(--fs-body);
  line-height: 1.85;
}

.page-about .about-lead--tight {
  margin-top: 34px;
  margin-bottom: 0;
}

.page-about .about-lead a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--flare);
}

.page-about .about-lead a:hover,
.page-about .about-lead a:focus-visible {
  color: var(--flare);
}

.page-about .about-more {
  margin: 34px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-about .about-more a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--flare);
}

.page-about .about-more a:hover,
.page-about .about-more a:focus-visible {
  color: var(--flare);
}

.page-about .about-closing {
  margin: 28px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--flare);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 245, 241, .82);
}

.page-about .about-section--teal .about-lead,
.page-about .about-section--teal .about-h2 {
  color: var(--paper);
}

.page-about .about-section--teal .about-lead a {
  border-bottom-color: var(--flare);
}

/* ---------- 数据格 ---------- */
.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--line-soft);
  border-left: var(--line-soft);
}

.page-about .stat-grid__item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  border-right: var(--line-soft);
  border-bottom: var(--line-soft);
  background: var(--paper);
}

.page-about .stat-grid__k {
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .16em;
  color: var(--mute);
  line-height: 1.6;
}

.page-about .stat-grid__v {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--ink);
}

/* ---------- 分工条形 ---------- */
.page-about .crew {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--line-soft);
}

.page-about .crew > li {
  border-bottom: var(--line-soft);
}

.page-about .crew__item {
  display: block;
}

.page-about .crew__head {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 46px;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-about .crew__head::-webkit-details-marker {
  display: none;
}

.page-about .crew__head:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: 3px;
}

.page-about .crew__role {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.4;
}

.page-about .crew__track {
  display: block;
  height: 16px;
  background: var(--grid);
  border: 1px solid var(--ink);
}

.page-about .crew__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--bamboo);
  transition: width 420ms var(--ease);
}

.page-about .crew > li:nth-child(1) .crew__fill { width: 61%; }
.page-about .crew > li:nth-child(2) .crew__fill { width: 20%; }
.page-about .crew > li:nth-child(3) .crew__fill { width: 13%; }
.page-about .crew > li:nth-child(4) .crew__fill { width: 7%; }

.page-about .crew__count {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  text-align: right;
  letter-spacing: .02em;
}

.page-about .crew__duty {
  margin: 0;
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-about .crew__item[open] .crew__duty {
  animation: about-fade var(--dur) var(--ease) both;
}

@keyframes about-fade {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 三道流程 ---------- */
.page-about .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(247, 245, 241, .26);
  counter-reset: none;
}

.page-about .check-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 26px 0;
  border-bottom: 1px solid rgba(247, 245, 241, .26);
}

.page-about .check-list__no {
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .2em;
  color: rgba(247, 245, 241, .62);
  line-height: 1.6;
}

.page-about .check-list__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .check-list__body p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 245, 241, .84);
}

/* ---------- 版本阶梯 ---------- */
.page-about .version-stair {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .version-card {
  border: 1px solid var(--ink);
  background: var(--paper);
}

.page-about .version-card > summary {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-about .version-card > summary::-webkit-details-marker {
  display: none;
}

.page-about .version-card > summary:focus-visible {
  outline: 2px solid var(--flare);
  outline-offset: -2px;
}

.page-about .version-card__no {
  display: block;
  padding: 5px 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .04em;
  text-align: center;
  color: var(--paper);
  background: var(--ink);
}

.page-about .version-stair > li:nth-child(1) .version-card__no { background: var(--teal); }
.page-about .version-stair > li:nth-child(2) .version-card__no { background: var(--wine); }
.page-about .version-stair > li:nth-child(3) .version-card__no { background: var(--indigo); }
.page-about .version-stair > li:nth-child(4) .version-card__no { background: var(--ink); }

.page-about .version-card__name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: .01em;
}

.page-about .version-card__body {
  padding: 0 18px 18px;
  border-top: var(--line-soft);
}

.page-about .version-card__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

.page-about .version-card[open] .version-card__body {
  animation: about-fade var(--dur) var(--ease) both;
}

/* ---------- 客户三类 ---------- */
.page-about .audience {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: var(--line-soft);
}

.page-about .audience__item {
  padding: 26px 22px;
  background: var(--paper);
  transition: background-color var(--dur) var(--ease);
}

.page-about .audience__item:hover {
  background: var(--warm);
}

.page-about .audience__title {
  margin: 16px 0 10px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: .01em;
}

.page-about .audience__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mute);
}

/* ---------- 资质卡 ---------- */
.page-about .cred-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .cred-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 20px 22px;
  background: var(--grid);
  border: 1px solid var(--ink);
  border-top: 3px solid var(--ink);
}

.page-about .cred-list__kind {
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .2em;
  color: var(--mute);
  line-height: 1.6;
}

.page-about .cred-list__name {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.page-about .cred-list__note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 排班表 ---------- */
.page-about .shift-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(247, 245, 241, .26);
}

.page-about .shift-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(247, 245, 241, .26);
}

.page-about .shift-list__k {
  font-family: var(--font-mono);
  font-size: var(--fs-anno);
  letter-spacing: .18em;
  color: rgba(247, 245, 241, .62);
  line-height: 1.6;
}

.page-about .shift-list__v {
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: .02em;
  line-height: 1.55;
  color: var(--paper);
}

/* ---------- 滚动显现 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about [data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

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

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

  .page-about .check-list__item {
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-about .shift-list__item {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about {
    padding-top: calc(var(--top-h) + 32px);
  }

  .page-about .about-hero {
    padding: 72px var(--about-gutter) 80px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .ledge {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 44px;
  }

  .page-about .ledge__rail {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 6px;
  }

  .page-about .ledge__no {
    font-family: var(--font-mono);
    font-size: 30px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: .02em;
  }

  .page-about .ledge__line {
    display: block;
    width: 1px;
    min-height: 48px;
    flex: 0 0 auto;
    background: currentColor;
    opacity: .3;
  }

  .page-about .ledge__tag {
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: var(--fs-anno);
    letter-spacing: .28em;
    opacity: .55;
  }

  .page-about .about-section {
    padding: 88px 0;
  }

  .page-about .about-section--indigo,
  .page-about .about-section--teal {
    padding: 88px var(--about-gutter);
  }

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

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

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

  .page-about .version-stair > li:nth-child(1) { margin-left: 0; }
  .page-about .version-stair > li:nth-child(2) { margin-left: 7%; }
  .page-about .version-stair > li:nth-child(3) { margin-left: 14%; }
  .page-about .version-stair > li:nth-child(4) { margin-left: 21%; }

  .page-about .about-figure--square {
    margin-left: auto;
    margin-top: 56px;
  }

  .page-about .about-figure--bleed + .about-section {
    border-top: 0;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__title {
    max-width: 15em;
  }

  .page-about .crew__duty {
    padding-left: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about .crew__fill,
  .page-about .audience__item,
  .page-about .breadcrumb a {
    transition: none !important;
  }

  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .page-about .crew__item[open] .crew__duty,
  .page-about .version-card[open] .version-card__body {
    animation: none;
  }
}