.page-about {
  color: var(--ivory);
}

.page-about .about-crumbs {
  margin-top: 20px;
}

/* ---------- 首屏：左重右轻的记录—对照骨架 ---------- */
.page-about .about-hero {
  padding: 30px 0 6px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.2vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--gold-bright);
  border-bottom: 3px solid var(--gold);
  padding-bottom: 2px;
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--ivory-dim);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
  border-top: 2px solid var(--line);
  border-bottom: 2px solid var(--line);
}

.page-about .about-stat {
  padding: 16px 10px 14px;
  border-right: 1px solid var(--line-soft);
}

.page-about .about-stat:last-child {
  border-right: 0;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.1;
  color: var(--gold-bright);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ivory-mute);
}

/* 右侧分组卡 */
.page-about .about-side {
  padding: 20px 18px 16px;
}

.page-about .about-side__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-roles {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .about-roles li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding: 13px 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-roles li:first-child {
  border-top: 0;
}

.page-about .about-roles .mono {
  font-size: 12px;
  color: var(--gold-bright);
  letter-spacing: 0.08em;
}

.page-about .about-roles strong {
  display: block;
  font-size: 15px;
  letter-spacing: 0.01em;
}

.page-about .about-roles span span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ivory-mute);
}

/* ---------- 卷宗式主体：左目录 + 右内容 ---------- */
.page-about .dossier {
  display: grid;
  gap: 34px;
  margin-top: 52px;
}

@media (min-width: 1000px) {
  .page-about .dossier {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }
}

.page-about .about-toc {
  min-width: 0;
  padding: 16px 14px;
  background: var(--panel);
  border: 2px solid var(--line);
}

@media (min-width: 1000px) {
  .page-about .about-toc {
    position: sticky;
    top: 96px;
  }
}

.page-about .about-toc__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-about .about-toc__list {
  display: flex;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-about .about-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 10px;
  white-space: nowrap;
  font-size: 14px;
  color: var(--ivory-dim);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-about .about-toc__num {
  font-size: 11px;
  color: var(--ivory-mute);
  letter-spacing: 0.08em;
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--gold-bright);
  border-left-color: var(--gold);
}

.page-about .about-toc__link.is-in {
  color: var(--gold-bright);
  border-left-color: var(--gold-bright);
  background: rgba(201, 162, 75, 0.08);
}

.page-about .about-toc__link.is-in .about-toc__num {
  color: var(--gold-bright);
}

@media (min-width: 1000px) {
  .page-about .about-toc__list {
    display: block;
    overflow: visible;
  }

  .page-about .about-toc__link {
    white-space: normal;
  }
}

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

/* ---------- 章节 ---------- */
.page-about .about-sec {
  padding-top: 30px;
  border-top: 1px solid var(--line);
  margin-top: 44px;
}

.page-about .about-sec:first-child {
  margin-top: 0;
  padding-top: 6px;
  border-top: 0;
}

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

.page-about .about-sec__title {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.3vw, 33px);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-about .about-sec__intro {
  margin: 16px 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ivory-dim);
}

/* ---------- 团队分组卡 ---------- */
.page-about .groups {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

@media (min-width: 780px) {
  .page-about .groups {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .group {
  position: relative;
  min-width: 0;
  padding: 20px 18px 18px;
  background: var(--panel);
  border: 2px solid rgba(242, 235, 221, 0.16);
  box-shadow: 6px 6px 0 rgba(201, 162, 75, 0.2);
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .group:hover,
.page-about .group:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: -6px -6px 0 rgba(210, 69, 58, 0.32);
  border-color: var(--gold);
}

.page-about .group__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
}

.page-about .group__name {
  margin: 10px 0 0;
  font-size: 18px;
  line-height: 1.4;
}

.page-about .group__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ivory-dim);
}

.page-about .group__duty {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--gold-bright);
  border-top: 1px dashed var(--line);
  padding-top: 10px;
}

@media (hover: hover) and (min-width: 780px) {
  .page-about .group__duty {
    opacity: 0;
    max-height: 0;
    padding-top: 0;
    border-top-color: transparent;
    overflow: hidden;
    transform: translateY(4px);
    transition: opacity 0.18s var(--ease), max-height 0.22s var(--ease), transform 0.18s var(--ease), padding-top 0.18s var(--ease);
  }

  .page-about .group:hover .group__duty,
  .page-about .group:focus-within .group__duty {
    opacity: 1;
    max-height: 140px;
    padding-top: 10px;
    border-top-color: var(--line);
    transform: none;
  }
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 28px 0 0;
}

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

.page-about .about-band {
  border: 2px solid var(--line-soft);
}

/* ---------- 方法四步 ---------- */
.page-about .steps {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 780px) {
  .page-about .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  padding: 18px 16px;
  background: var(--slate);
  border-left: 2px solid var(--gold);
}

.page-about .step__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-bright);
  letter-spacing: 0.08em;
}

.page-about .step__title {
  margin: 0;
  font-size: 15.5px;
}

.page-about .step__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ivory-dim);
}

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

/* ---------- 表格 ---------- */
.page-about .table-wrap {
  margin-top: 26px;
}

.page-about .data-table a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-about .data-table a:hover {
  border-bottom-color: var(--gold-bright);
}

.page-about .about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

/* ---------- 阶段时间线 ---------- */
.page-about .timeline {
  margin-top: 28px;
}

.page-about .timeline__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold-bright);
}

.page-about .timeline__title {
  margin: 8px 0 0;
  font-size: 17px;
}

.page-about .timeline__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ivory-dim);
}

/* ---------- 反馈通道 ---------- */
.page-about .channels {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

@media (min-width: 780px) {
  .page-about .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .channel {
  min-width: 0;
  padding: 18px 16px;
  background: var(--panel);
  border-top: 2px solid var(--gold);
}

.page-about .channel__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .channel__title {
  margin: 10px 0 0;
  font-size: 16.5px;
}

.page-about .channel__text {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ivory-dim);
}

/* ---------- 联系条 ---------- */
.page-about .about-contact {
  margin-top: 30px;
  padding: 24px 20px 20px;
  background: var(--cream);
  color: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 8px 8px 0 rgba(210, 69, 58, 0.24);
}

.page-about .about-contact__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: #7a5c17;
}

.page-about .about-contact__line {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.7;
}

.page-about .about-contact__line a {
  color: #7a5c17;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
}

.page-about .about-contact__line a:hover {
  color: var(--ink);
}

.page-about .about-contact__line .mono {
  color: var(--ink);
  letter-spacing: 0.04em;
}

.page-about .about-contact__note {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--umber);
}

.page-about .about-contact__actions {
  margin: 20px 0 0;
}

@media (max-width: 479px) {
  .page-about .about-stat__label {
    font-size: 11px;
  }

  .page-about .about-contact {
    box-shadow: 4px 4px 0 rgba(210, 69, 58, 0.24);
  }
}
<<<END>>>