.page-about {
  --about-pad: clamp(16px, 2.2vw, 30px);
  --about-split-gap: clamp(22px, 3vw, 46px);
}

.page-about .about-intro {
  padding-top: clamp(26px, 4.5vw, 62px);
}

/* ---------- 首屏拼贴 ---------- */
.page-about .about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 42px);
  margin-top: clamp(16px, 2.4vw, 30px);
}

.page-about .about-hero__title {
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.06;
  margin: 10px 0 0;
  max-width: 18ch;
}

.page-about .about-hero__lede {
  margin-top: 16px;
  max-width: 62ch;
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7.4fr) minmax(0, 4fr);
    align-items: start;
  }
}

.page-about .about-snapshot {
  padding: var(--about-pad);
  align-self: start;
}

.page-about .about-snapshot__title {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-faint);
}

.page-about .about-snapshot__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-snapshot .stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 12px;
  border-left: 2px solid var(--line-faint);
  transition: border-color .12s var(--ease);
}

.page-about .about-snapshot .stat:hover {
  border-left-color: var(--accent);
}

.page-about .about-snapshot .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 1.7vw, 21px);
  font-weight: 600;
  color: var(--data);
  letter-spacing: -.01em;
}

.page-about .about-snapshot .stat__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-mute);
}

/* ---------- 分段锚点 ---------- */
.page-about .about-anchors {
  margin-top: clamp(26px, 4vw, 54px);
  display: flex;
  gap: clamp(10px, 1.6vw, 22px);
  overflow-x: auto;
  padding: 12px 0;
  border-top: 1px solid var(--line-faint);
  border-bottom: 1px solid var(--line-faint);
  scrollbar-width: none;
}

.page-about .about-anchors::-webkit-scrollbar {
  display: none;
}

.page-about .about-anchors a {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink-mute);
  text-decoration: none;
  padding: 3px 0 3px 10px;
  border-left: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-about .about-anchors a:hover,
.page-about .about-anchors a:focus-visible,
.page-about .about-anchors a[aria-current] {
  color: var(--ink);
  border-left-color: var(--data);
}

/* ---------- 通用区块 ---------- */
.page-about .about-sec {
  padding-top: clamp(38px, 6vw, 88px);
}

.page-about .about-sechead {
  margin-bottom: clamp(16px, 2.2vw, 26px);
}

.page-about .about-h2 {
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.12;
  margin: 8px 0 0;
  max-width: 24ch;
}

.page-about .about-h3 {
  font-family: var(--font-display);
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 14px;
}

.page-about .about-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  max-width: 72ch;
  color: var(--ink);
}

.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-split-gap);
}

@media (min-width: 1024px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 7.6fr) minmax(0, 3.4fr);
    align-items: start;
  }
  .page-about .about-sechead + .about-split,
  .page-about .about-lead + .about-split {
    margin-top: clamp(18px, 2.6vw, 34px);
  }
}

.page-about .about-col > p {
  margin: 0 0 16px;
  max-width: 72ch;
}

.page-about .about-col > p:last-child {
  margin-bottom: 0;
}

.page-about .about-notes {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-notes .note {
  margin: 0;
  padding-left: 12px;
  border-left: 1px solid var(--line-faint);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0 0 24px;
}

.page-about .about-figure img,
.page-about .about-figure svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-about .about-figure img {
  object-fit: cover;
  border: 1px solid var(--line-faint);
  border-radius: 3px;
  filter: saturate(.88) brightness(.93) contrast(1.05);
}

.page-about .about-figure--wide img { aspect-ratio: 14 / 9; }
.page-about .about-figure--square img { aspect-ratio: 1 / 1; }
.page-about .about-figure--channel img { aspect-ratio: 16 / 9; }

.page-about .about-figure .media__caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-mute);
}

/* ---------- 双轴示意图 ---------- */
.page-about .about-figure--diagram {
  margin-bottom: 24px;
}

.page-about .about-diagram {
  background: var(--panel);
  border: 1px solid var(--line-faint);
  border-radius: 3px;
}

.page-about .about-diagram .ad-grid {
  stroke: var(--line-faint);
  stroke-width: 1;
}

.page-about .about-diagram .ad-axis {
  stroke: var(--line);
  stroke-width: 1.4;
}

.page-about .about-diagram .ad-cross {
  stroke: var(--data);
  stroke-width: 1;
  stroke-dasharray: 5 5;
  opacity: .72;
}

.page-about .about-diagram .ad-dot {
  fill: var(--accent);
}

.page-about .about-diagram .ad-dot-ring {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1;
  opacity: .45;
}

.page-about .about-diagram .ad-text {
  fill: var(--ink-mute);
  font-family: var(--font-sans);
  font-size: 13px;
}

.page-about .about-diagram .ad-link {
  stroke: var(--line);
  stroke-width: 1.2;
  stroke-dasharray: 3 5;
}

.page-about .about-diagram .ad-chip {
  fill: var(--panel);
  stroke: var(--line);
  stroke-width: 1.2;
  transition: stroke .18s var(--ease), fill .18s var(--ease);
}

.page-about .about-diagram .ad-step-icon {
  fill: var(--data);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
}

.page-about .about-diagram .ad-step-label {
  fill: var(--ink);
  font-family: var(--font-sans);
  font-size: 13px;
}

.page-about .about-diagram .ad-step {
  cursor: pointer;
  outline: none;
}

.page-about .about-diagram .ad-step:hover .ad-chip,
.page-about .about-diagram .ad-step:focus-visible .ad-chip {
  stroke: var(--accent);
  fill: var(--card);
}

/* ---------- 团队分工 ---------- */
.page-about .about-roster {
  list-style: none;
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-roster__item {
  flex: 1 1 100%;
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line-faint);
  border-left: 3px solid var(--line);
  transition: border-left-color .12s var(--ease);
}

.page-about .about-roster__item:hover {
  border-left-color: var(--accent);
}

.page-about .about-roster__num {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 600;
  color: var(--data);
  line-height: 1;
}

.page-about .about-roster__label {
  font-size: 14px;
  letter-spacing: .01em;
  color: var(--ink);
  word-break: keep-all;
}

@media (min-width: 880px) {
  .page-about .about-roster {
    flex-wrap: nowrap;
  }
  .page-about .about-roster__item {
    flex: 1 1 0;
  }
  .page-about .about-roster__item--a { flex-grow: 12; }
  .page-about .about-roster__item--b { flex-grow: 10; }
  .page-about .about-roster__item--c { flex-grow: 4; }
  .page-about .about-roster__item--d { flex-grow: 6; }
  .page-about .about-roster__item--e { flex-grow: 6; }
}

.page-about .about-flow {
  list-style: none;
  counter-reset: about-flow;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-flow li {
  counter-increment: about-flow;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-faint);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-about .about-flow li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-flow li::before {
  content: counter(about-flow, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--data);
  padding-top: 4px;
}

/* ---------- 口径手册 ---------- */
.page-about .about-revisions {
  list-style: none;
  margin: 22px 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-revisions li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--line-faint);
}

.page-about .about-revisions p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  max-width: 66ch;
}

@media (min-width: 720px) {
  .page-about .about-revisions li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
}

.page-about .about-revisions .tag {
  justify-self: start;
}

.page-about .about-version {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 16px 18px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 106, 31, .42);
}

.page-about .about-version__label {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.page-about .about-version__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--accent);
}

/* ---------- 时间线 ---------- */
.page-about .about-tl {
  list-style: none;
  margin: clamp(22px, 3.4vw, 44px) 0 0;
  padding: 0;
  position: relative;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), var(--line-faint));
}

.page-about .about-tl__item,
.page-about .about-tl__media {
  position: relative;
  padding-left: 26px;
  padding-bottom: clamp(22px, 3vw, 36px);
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line);
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-about .about-tl__item:hover::before {
  border-color: var(--accent);
  background: var(--accent);
}

.page-about .about-tl__item--now::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.page-about .about-tl__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--data);
}

.page-about .about-tl__item--now .about-tl__year {
  color: var(--accent);
}

.page-about .about-tl__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 5px 0 7px;
}

.page-about .about-tl__text {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  max-width: 64ch;
}

.page-about .about-tl__more {
  border-left: 2px solid var(--line-faint);
  padding-left: 12px;
}

.page-about .about-tl__more summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ink-mute);
  transition: color .18s var(--ease);
}

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

.page-about .about-tl__more summary::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--data);
}

.page-about .about-tl__more[open] summary::after {
  content: "－";
}

.page-about .about-tl__more summary:hover,
.page-about .about-tl__more summary:focus-visible {
  color: var(--ink);
}

.page-about .about-tl__more p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-mute);
  max-width: 62ch;
}

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

/* ---------- 边界声明 ---------- */
.page-about .about-boundary {
  padding: clamp(24px, 3.4vw, 48px);
  border-radius: 4px;
  border-left: 3px solid var(--accent);
}

.page-about .about-boundary__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-boundary__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink);
  max-width: 78ch;
}

.page-about .about-boundary__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--line);
}

.page-about .about-boundary__next {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line-faint);
  max-width: 78ch;
}

/* ---------- 术语玻璃说明卡 ---------- */
.page-about .term {
  position: relative;
  color: var(--data);
  border-bottom: 1px dashed var(--data);
  cursor: help;
  outline: none;
}

.page-about .term__card {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: min(300px, 76vw);
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--glass-line);
  border-radius: 3px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
  z-index: 8;
}

.page-about .term:hover .term__card,
.page-about .term:focus .term__card,
.page-about .term:focus-visible .term__card {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>