.page-about {
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 分屏骨架 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-aside {
  display: flex;
  flex-direction: column;
  gap: clamp(22px, 3vw, 36px);
  min-width: 0;
}

.page-about .about-main {
  display: flex;
  flex-direction: column;
  gap: clamp(44px, 7vw, 88px);
  min-width: 0;
}

/* ---------- 左侧刊头 ---------- */
.page-about .about-head {
  position: relative;
  padding-top: 26px;
  border-top: 2px solid var(--gold);
}

.page-about .about-head .kicker {
  margin: 0;
}

.page-about .about-title {
  margin: 14px 0 0;
  font-size: clamp(38px, 6.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-title span {
  display: block;
}

.page-about .about-title span:last-child {
  color: var(--gold);
}

.page-about .about-note-v {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.2em;
  color: var(--stone);
}

/* ---------- 章节目录 ---------- */
.page-about .about-toc {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-about .toc-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--stone);
  text-transform: uppercase;
}

.page-about .about-toc .toc-list {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-toc .toc-link {
  display: block;
  padding: 10px 12px 10px 14px;
  font-size: 15px;
  line-height: 1.45;
  color: var(--stone);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}

.page-about .about-toc .toc-link:hover,
.page-about .about-toc .toc-link:focus-visible {
  color: var(--gold-soft);
  background-color: rgba(227, 178, 92, 0.07);
}

.page-about .about-toc .toc-link.is-active {
  color: var(--gold);
  border-left-color: var(--gold);
  background-color: rgba(227, 178, 92, 0.09);
}

/* ---------- 首段陈述 ---------- */
.page-about .about-lede {
  padding-top: clamp(4px, 1vw, 12px);
}

.page-about .about-standfirst {
  margin: 0;
  max-width: 40em;
  padding-left: clamp(16px, 2.4vw, 26px);
  border-left: 3px solid var(--gold);
  font-size: clamp(19px, 2.1vw, 24px);
  line-height: 1.68;
  color: var(--paper);
}

/* ---------- 章节通用 ---------- */
.page-about .about-section .section-head {
  margin-bottom: 22px;
}

.page-about .about-section .section-title {
  margin: 8px 0 0;
}

.page-about .about-intro {
  margin-bottom: 26px;
}

.page-about .about-intro p {
  margin: 0;
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  position: relative;
  margin: 4px 0 34px;
  padding-left: 22px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(227, 178, 92, 0.12) 100%);
}

.page-about .about-stage {
  position: relative;
  padding: 0 0 28px 24px;
  outline: none;
}

.page-about .about-stage:last-child {
  padding-bottom: 0;
}

.page-about .about-stage::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 6px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--gold);
  background-color: var(--ink);
}

.page-about .about-stage-mark {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-stage h3 {
  margin: 0 0 10px;
  font-size: clamp(20px, 2.3vw, 24px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-stage p {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
}

.page-about .about-stage-hint {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  color: var(--gold-soft) !important;
  font-size: 14px !important;
  transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
}

.page-about .about-stage:hover .about-stage-hint,
.page-about .about-stage:focus-within .about-stage-hint,
.page-about .about-stage:focus-visible .about-stage-hint {
  max-height: 90px;
  opacity: 1;
  margin-top: 10px !important;
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 30px 0 0;
  border: 2px solid var(--line-strong);
  background-color: var(--ink-2);
  box-shadow: var(--shadow-hard);
}

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

.page-about .about-figure .media-cap {
  display: block;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--stone);
  border-top: 1px solid var(--line);
  background-color: var(--ink-2);
}

/* ---------- 四条内容标准 ---------- */
.page-about .about-standards {
  border-top: 1px solid var(--line);
}

.page-about .about-standard {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-standard-num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-about .about-standard-body h3 {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .about-standard-body p {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
}

/* ---------- 团队分工 ---------- */
.page-about .about-team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 4px 0 30px;
}

.page-about .about-team-cell {
  border: 2px solid var(--line-strong);
  background-color: var(--ink-2);
  box-shadow: var(--shadow-mid);
  transition: border-color .22s ease;
}

.page-about .about-team-cell:hover,
.page-about .about-team-cell[open] {
  border-color: var(--gold);
}

.page-about .about-team-cell > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 22px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
}

.page-about .about-team-cell > summary::-webkit-details-marker {
  display: none;
}

.page-about .about-team-cell > summary::after {
  content: "+";
  margin-left: auto;
  font-size: 18px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-team-cell[open] > summary::after {
  content: "–";
}

.page-about .about-team-num {
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-about .about-team-role {
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-about .about-team-cell > p {
  margin: 0;
  padding: 0 22px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner-points {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-partner-points li {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.8;
  color: var(--stone);
}

.page-about .about-partner-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 10px;
  background-color: var(--gold);
}

/* ---------- 圈内位置 ---------- */
.page-about .about-recog {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .about-recog-item {
  padding: 22px 20px;
  border: 2px solid var(--line);
  background: linear-gradient(135deg, rgba(20, 36, 59, 0.92), rgba(11, 21, 36, 0.92));
}

.page-about .about-recog-item .stat-value {
  display: block;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-about .about-recog-item .stat-label {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: clamp(30px, 5vw, 52px);
  padding-top: 26px;
  border-top: 2px solid var(--gold);
}

.page-about .about-cta p {
  flex: 1 1 260px;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 窄屏微调 ---------- */
@media (max-width: 479px) {
  .page-about .about-team-cell > summary {
    padding: 18px 16px;
  }

  .page-about .about-team-cell > p {
    padding: 0 16px 20px;
  }

  .page-about .about-figure .media-cap {
    padding: 10px 12px;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-about .about-team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-recog {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-standard {
    grid-template-columns: minmax(90px, 110px) minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-about .about-standard-num {
    padding-top: 4px;
  }
}

/* ---------- 桌面：32 / 68 分屏 ---------- */
@media (min-width: 960px) {
  .page-about .about-layout {
    grid-template-columns: minmax(248px, 32%) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 60px);
  }

  .page-about .about-aside {
    position: sticky;
    top: calc(var(--header-offset) + 24px);
    align-self: start;
  }

  .page-about .about-head {
    padding-right: 40px;
  }

  .page-about .about-note-v {
    position: absolute;
    right: 6px;
    top: 30px;
    margin: 0;
    max-height: 210px;
    padding-right: 10px;
    border-right: 1px solid var(--line);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
  }
}
</final>