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

.page-about img {
  max-width: 100%;
}

.page-about .about-section {
  padding-block: clamp(40px, 6.5vw, 92px);
}

.page-about .about-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4.6vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-about .about-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

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

.page-about .about-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--ink-900);
  background: var(--gold-light);
  border-radius: 999px;
  padding: 7px 11px;
}

.page-about .figure-frame {
  margin: 0;
}

.page-about .figure-frame__media {
  overflow: hidden;
  border-radius: var(--radius-m);
  background: var(--paper-2);
}

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

/* 首屏 */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(18px, 3vw, 34px) clamp(42px, 6vw, 84px);
  background:
    radial-gradient(120% 90% at 86% 0%, rgba(201, 169, 106, 0.22), rgba(201, 169, 106, 0) 62%),
    var(--paper);
}

.page-about .about-hero .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 42px);
}

.page-about .about-hero__inner {
  display: grid;
  gap: clamp(26px, 5vw, 54px);
  align-items: center;
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 7.2vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-about .about-hero__mark {
  background-image: linear-gradient(var(--gold), var(--gold));
  background-repeat: no-repeat;
  background-size: 100% 6px;
  background-position: 0 92%;
  padding-bottom: 0.06em;
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 48ch;
  color: var(--text);
}

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

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 3.4vw, 25px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink-800);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
}

.page-about .about-hero__frame {
  transform: rotate(-1.2deg);
  box-shadow: 0 22px 44px -28px rgba(15, 46, 40, 0.6);
}

.page-about .about-hero__frame .figure-frame__media {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
}

.page-about .about-hero__stamp {
  position: absolute;
  right: 10px;
  bottom: -14px;
  padding: 10px 7px;
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-800);
  background: var(--paper-3);
  border: 1px solid var(--gold);
  border-radius: var(--radius-s);
  transform: rotate(2deg);
}

/* 品牌背景 */
.page-about .about-intro {
  background: var(--paper-3);
  border-block: 1px solid var(--line);
}

.page-about .about-intro__inner {
  display: grid;
  gap: clamp(18px, 3vw, 40px);
}

.page-about .about-intro__body .prose {
  margin: 0 0 18px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-intro__body .prose:last-of-type {
  margin-bottom: 0;
}

.page-about .about-intro .doc-snippet {
  margin-top: 26px;
  padding: 18px 20px;
  background: var(--gold-light);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-family: var(--font-serif);
  color: var(--ink-900);
}

.page-about .about-quote-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--ink-700);
}

.page-about .about-intro .doc-snippet p:last-child {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
}

/* 时间轴 */
.page-about .about-history__lead {
  margin: 14px 0 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: 15.5px;
}

.page-about .about-timeline {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-about .about-node {
  display: grid;
  gap: 10px;
}

.page-about .about-node__year {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 9vw, 74px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: rgba(15, 46, 40, 0.18);
}

.page-about .about-node__body {
  position: relative;
}

.page-about .about-node__details {
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-about .about-node__details[open] {
  border-color: var(--gold);
  box-shadow: 0 16px 34px -26px rgba(15, 46, 40, 0.65);
}

.page-about .about-node__summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-node__text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-node__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-node__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.6vw, 21px);
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-node__sign::before {
  content: "+";
  display: block;
  width: 26px;
  height: 26px;
  line-height: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--coral);
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 0.2s var(--ease);
}

.page-about .about-node__details[open] .about-node__sign::before {
  content: "−";
  border-color: var(--coral);
}

.page-about .about-node__more {
  margin: 0;
  padding: 0 20px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-history__more {
  margin: 26px 0 0;
  font-size: 14px;
  color: var(--muted);
}

.page-about .about-history__more a {
  color: var(--ink-700);
  text-decoration-color: var(--gold);
  text-underline-offset: 3px;
}

/* 内容体系 */
.page-about .about-channels {
  background: linear-gradient(158deg, var(--ink-900) 0%, var(--ink-700) 100%);
  color: var(--paper);
}

.page-about .about-channels .about-h2,
.page-about .about-channels .about-help__title {
  color: var(--paper-3);
}

.page-about .about-channels .about-num {
  background: transparent;
  border: 1px solid rgba(201, 169, 106, 0.55);
  color: var(--gold-light);
}

.page-about .about-channels .eyebrow {
  color: var(--gold-light);
}

.page-about .about-channels__lead {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.78);
}

.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 24px 0 20px;
}

.page-about .filter-btn {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(201, 169, 106, 0.45);
  background: transparent;
  color: var(--gold-light);
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .filter-btn:hover {
  border-color: var(--gold);
  color: var(--paper-3);
}

.page-about .filter-btn[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--paper-3);
}

.page-about .filter-status {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.6);
  margin-left: auto;
}

.page-about .about-roll {
  list-style: none;
  margin: 0;
  padding: 4px 0 18px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 218px;
  gap: 14px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
}

.page-about .about-roll__item {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: rgba(244, 239, 230, 0.06);
  border: 1px solid rgba(201, 169, 106, 0.35);
  border-radius: var(--radius-m);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-about .about-roll__item:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  background: rgba(244, 239, 230, 0.1);
}

.page-about .about-roll__item[hidden],
.page-about .about-roll__item.is-hidden {
  display: none;
}

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

.page-about .about-roll__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper-3);
}

.page-about .about-roll__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(244, 239, 230, 0.72);
}

.page-about .about-help__title {
  margin: 34px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.page-about .about-help {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-help__item {
  padding: 14px 16px;
  background: rgba(244, 239, 230, 0.06);
  border-left: 2px solid var(--gold);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
}

.page-about .about-help__name {
  display: block;
  font-weight: 700;
  font-size: 15.5px;
  color: var(--paper-3);
}

.page-about .about-help__desc {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(244, 239, 230, 0.68);
}

.page-about .about-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 16px;
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(201, 169, 106, 0.35);
}

.page-about .about-figure__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.2;
  color: var(--paper-3);
}

.page-about .about-figure__label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: rgba(244, 239, 230, 0.65);
}

/* 团队 */
.page-about .about-team__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-team__media {
  margin: 0;
}

.page-about .about-team__media .figure-frame__media {
  aspect-ratio: 10 / 7;
  border: 1px solid var(--line);
}

.page-about .about-team__copy .prose {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-about .about-team__val {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.6vw, 29px);
  line-height: 1.15;
  color: var(--ink-800);
}

.page-about .about-team__key {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--muted);
}

/* 运营主体 */
.page-about .about-base {
  padding-block: clamp(44px, 7vw, 96px);
  background: linear-gradient(150deg, var(--ink-900) 0%, var(--ink-700) 100%);
  color: var(--paper);
}

.page-about .about-base__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-base .about-h2 {
  color: var(--paper-3);
}

.page-about .about-base .about-num {
  background: transparent;
  border: 1px solid rgba(201, 169, 106, 0.55);
  color: var(--gold-light);
}

.page-about .about-base .eyebrow {
  color: var(--gold-light);
}

.page-about .about-base__text {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.82);
}

.page-about .about-base__list {
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-base__item {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(201, 169, 106, 0.28);
}

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

.page-about .about-base__value {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-base__note {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.62);
}

.page-about .about-base .btn {
  margin-top: 24px;
}

.page-about .about-base__media {
  margin: 0;
}

.page-about .about-base__media .figure-frame__media {
  aspect-ratio: 3 / 2;
  border: 1px solid rgba(201, 169, 106, 0.4);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-help {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-about .about-intro__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .about-node {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-about .about-node__year {
    text-align: right;
  }

  .page-about .about-node__body {
    padding-left: 36px;
  }

  .page-about .about-node__body::before {
    content: "";
    position: absolute;
    left: 0;
    top: 20px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 0 5px rgba(201, 169, 106, 0.2);
    z-index: 1;
  }

  .page-about .about-node__body::after {
    content: "";
    position: absolute;
    left: 5px;
    top: -34px;
    bottom: -34px;
    border-left: 1px dashed var(--line);
    z-index: 0;
  }

  .page-about .about-node:first-child .about-node__body::after {
    top: 20px;
  }

  .page-about .about-node:last-child .about-node__body::after {
    bottom: auto;
    height: 32px;
  }

  .page-about .about-node:nth-child(even) .about-node__details {
    margin-left: 26px;
  }

  .page-about .about-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-team__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-about .about-base__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1080px) {
  .page-about .about-roll {
    grid-auto-columns: 244px;
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-roll__item,
  .page-about .filter-btn,
  .page-about .about-node__details {
    transition: none;
  }

  .page-about .about-hero__frame {
    transform: none;
  }

  .page-about .about-roll__item:hover {
    transform: none;
  }
}
<<<END>>>