.page-about {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.8;
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  position: relative;
  z-index: 1;
  margin: 0 0 clamp(18px, 3.5vw, 38px);
}
.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
}
.page-about .breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(245, 247, 250, 0.6);
}
.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: var(--gold);
}
.page-about .breadcrumb__link {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}
.page-about .breadcrumb__link:hover {
  border-bottom-color: var(--gold-bright);
}

/* ---------- 首屏 ---------- */
.page-about .about-opening {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--mist);
  padding: clamp(26px, 5vw, 52px) 0 clamp(38px, 7vw, 86px);
}
.page-about .about-opening::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(120% 88% at 88% 6%, rgba(200, 162, 74, 0.22), transparent 62%),
    repeating-linear-gradient(90deg, rgba(200, 162, 74, 0.13) 0 1px, transparent 1px 112px);
}
.page-about .about-opening .shell {
  position: relative;
  z-index: 1;
}
.page-about .about-opening__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
}
@media (min-width: 1000px) {
  .page-about .about-opening__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }
}
.page-about .about-opening__eyebrow {
  margin: 0 0 16px;
  color: var(--gold-bright);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
}
.page-about .about-opening__title {
  margin: 0 0 22px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(31px, 6vw, 66px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .about-opening__lede {
  margin: 0;
  max-width: 56ch;
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-editorial);
  font-size: clamp(16px, 2vw, 19.5px);
  line-height: 1.9;
  color: rgba(245, 247, 250, 0.86);
}
.page-about .about-opening__stats {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}
@media (min-width: 520px) {
  .page-about .about-opening__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-about .about-stat {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid rgba(200, 162, 74, 0.3);
  border-radius: var(--radius-m);
  background: rgba(22, 64, 95, 0.55);
}
.page-about .about-stat dt {
  margin: 0 0 6px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(245, 247, 250, 0.66);
}
.page-about .about-stat dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--paper);
}
.page-about .about-stat .stat-num {
  font-size: 25px;
  color: var(--gold-bright);
}

/* ---------- 泊位骨架 ---------- */
.page-about .about-berth {
  display: grid;
  gap: clamp(18px, 3vw, 36px);
  padding-block: clamp(34px, 6vw, 80px);
}
@media (min-width: 1000px) {
  .page-about .about-berth {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: clamp(26px, 3vw, 52px);
  }
}
.page-about .berth-rail {
  min-width: 0;
}
@media (min-width: 1000px) {
  .page-about .berth-rail {
    position: sticky;
    top: calc(var(--head-h) + 28px);
    align-self: start;
  }
}
.page-about .berth-rail__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid var(--line-gold);
}
.page-about .berth-rail__list::-webkit-scrollbar {
  display: none;
}
@media (min-width: 1000px) {
  .page-about .berth-rail__list {
    flex-direction: column;
    overflow: visible;
    padding: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line-gold);
  }
}
.page-about .berth-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 13px;
  border-radius: 999px;
  white-space: nowrap;
  text-decoration: none;
  font-size: 13px;
  color: var(--muted);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}
@media (min-width: 1000px) {
  .page-about .berth-rail__link {
    white-space: normal;
    padding: 10px 12px;
    border-radius: var(--radius-s);
  }
}
.page-about .berth-rail__link:hover {
  color: var(--navy);
  background: rgba(200, 162, 74, 0.14);
}
.page-about .berth-rail__link[aria-current="true"] {
  color: var(--navy);
  background: var(--sand);
  box-shadow: inset 0 0 0 1px var(--line-gold);
}
.page-about .berth-rail__index {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

/* ---------- 章节 ---------- */
.page-about .about-chapters {
  min-width: 0;
}
.page-about .about-chapter {
  padding-block: clamp(28px, 4.6vw, 58px);
  border-top: 1px solid var(--line-gold);
  scroll-margin-top: calc(var(--head-h) + 24px);
}
.page-about .about-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-about .about-chapter__grid {
  display: grid;
  gap: 12px;
}
@media (min-width: 980px) {
  .page-about .about-chapter__grid {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    column-gap: clamp(20px, 3vw, 36px);
    row-gap: 14px;
  }
  .page-about .about-chapter__num {
    grid-column: 1;
    grid-row: 1;
  }
  .page-about .about-chapter__title {
    grid-column: 2;
    grid-row: 1;
  }
  .page-about .about-chapter__prose {
    grid-column: 2;
    grid-row: 2;
  }
  .page-about .about-chapter__aside {
    grid-column: 2;
    grid-row: 3;
  }
}
@media (min-width: 1180px) {
  .page-about .about-chapter__grid {
    grid-template-columns: var(--rail) minmax(0, 1fr) 236px;
  }
  .page-about .about-chapter__aside {
    grid-column: 3;
    grid-row: 1 / span 2;
    align-self: start;
    position: sticky;
    top: calc(var(--head-h) + 28px);
  }
}
.page-about .about-chapter__num {
  margin: 0;
  padding-top: 8px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold);
}
.page-about .about-chapter__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--navy);
}
.page-about .about-chapter__prose {
  max-width: 74ch;
}
.page-about .about-chapter__prose > p {
  margin: 0 0 18px;
}
.page-about .about-chapter__lead {
  font-family: var(--font-editorial);
  font-size: clamp(16.5px, 1.7vw, 19px);
  line-height: 1.92;
  color: var(--navy-2);
}
.page-about .about-chapter__aside {
  padding: 16px 18px;
  border-radius: var(--radius-m);
  border-left: 3px solid var(--gold);
  background: var(--mist);
}
.page-about .about-chapter__aside-title {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--sea);
}
.page-about .about-ticks {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .about-ticks li {
  display: grid;
  gap: 2px;
}
.page-about .about-ticks__k {
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--orange);
}
.page-about .about-ticks__v {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 流程条 ---------- */
.page-about .about-flow {
  display: grid;
  gap: 10px;
  margin: 4px 0 22px;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (min-width: 760px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.page-about .about-flow__item {
  padding: 14px 15px;
  border-radius: var(--radius-m);
  border-top: 3px solid var(--gold);
  background: var(--mist);
}
.page-about .about-flow__step {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--orange);
}
.page-about .about-flow__name {
  margin: 4px 0 4px;
  font-weight: 700;
  color: var(--navy);
}
.page-about .about-flow__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 定价面板 ---------- */
.page-about .about-price-panel {
  margin: 6px 0 22px;
  padding: clamp(16px, 3vw, 28px);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-l);
  background: var(--sand);
}
.page-about .about-price-band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--line-gold);
}
.page-about .about-price-band__label {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--sea);
}
.page-about .about-price-band__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1;
  color: var(--navy);
}
.page-about .about-price-band__unit {
  font-family: var(--font-num);
  font-size: 14px;
  color: var(--muted);
}
.page-about .about-tiers {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
@media (min-width: 720px) {
  .page-about .about-tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-about .about-tier {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--paper);
}
.page-about .about-tier--focus {
  border-color: var(--gold);
  box-shadow: 0 18px 40px -30px rgba(11, 42, 69, 0.6);
}
.page-about .about-tier__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--navy);
}
.page-about .about-tier__meta {
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--orange);
}
.page-about .about-tier__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 22px;
  margin-bottom: 6px;
}
@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }
}
.page-about .about-roles {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}
.page-about .about-role {
  padding-left: 16px;
  border-left: 3px solid var(--gold);
}
.page-about .about-role__name {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 3px;
  font-weight: 800;
  color: var(--navy);
}
.page-about .about-role__key {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--sea);
}
.page-about .about-role__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 图文容器 ---------- */
.page-about .media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-l);
  background: var(--navy-2);
}
.page-about .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(200, 162, 74, 0.1) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, rgba(200, 162, 74, 0.1) 0 1px, transparent 1px 46px);
}
.page-about .about-team__figure {
  margin-top: 4px;
}
.page-about .about-split__figure,
.page-about .about-stage__figure {
  margin-top: 26px;
}

/* ---------- 职责对照 ---------- */
.page-about .about-boundary {
  display: grid;
  gap: 14px;
  margin-top: 6px;
}
@media (min-width: 620px) {
  .page-about .about-boundary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.page-about .about-boundary__col {
  padding: 18px;
  border-radius: var(--radius-m);
}
.page-about .about-boundary__col--site {
  border: 1px solid var(--line);
  background: rgba(22, 64, 95, 0.07);
}
.page-about .about-boundary__col--you {
  border: 1px solid var(--line-gold);
  background: var(--sand);
}
.page-about .about-boundary__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--navy);
}
.page-about .about-boundary__list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
  line-height: 1.75;
}
.page-about .about-boundary__list li {
  position: relative;
  padding-left: 14px;
}
.page-about .about-boundary__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
}
.page-about .about-boundary__col--you .about-boundary__list li::before {
  background: var(--orange);
}

/* ---------- 可展开内容组 ---------- */
.page-about .accordion {
  margin-top: 26px;
  border-top: 1px solid var(--line);
}
.page-about .accordion__item {
  border-bottom: 1px solid var(--line);
}
.page-about .accordion__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  border: 0;
  background: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  text-align: left;
  color: var(--navy);
  cursor: pointer;
}
.page-about .accordion__trigger::after {
  content: "＋";
  font-family: var(--font-num);
  color: var(--gold);
}
.page-about .accordion__trigger[aria-expanded="true"]::after {
  content: "－";
  color: var(--orange);
}
.page-about .accordion__panel {
  display: block;
  padding: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}
.page-about .accordion__panel p {
  margin: 0;
  max-width: 68ch;
}

/* ---------- 时间轴 ---------- */
.page-about .timeline {
  position: relative;
  margin: 6px 0 0;
  padding: 0 0 0 24px;
  list-style: none;
}
.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--gold), rgba(200, 162, 74, 0.12));
}
.page-about .timeline__item {
  position: relative;
  padding: 0 0 24px 16px;
}
.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: var(--paper);
}
.page-about .timeline__item:first-child::before {
  border-color: var(--orange);
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 107, 53, 0.16);
}
.page-about .timeline__date {
  margin: 0 0 4px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--sea);
}
.page-about .timeline__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  margin-top: clamp(30px, 5vw, 58px);
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--radius-l);
  background: var(--navy-deep);
  color: var(--mist);
}
.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--paper);
}
.page-about .about-cta__text {
  margin: 0 0 22px;
  max-width: 60ch;
  color: rgba(245, 247, 250, 0.76);
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-about .about-cta__links .btn {
  flex: 0 1 auto;
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
<<<END>>>