/* ============================================================
   品牌总览页 · page-about
   所有页面专属选择器均限定在 .page-about 作用域内
   ============================================================ */

.page-about {
  --about-rail: 96px;
  --about-gap: 36px;
  --about-pad: 56px;
  display: block;
}

.page-about .section {
  padding: var(--about-pad) 0;
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  padding-top: 20px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  margin-top: 8px;
  padding: 44px 0 56px;
  background:
    radial-gradient(110% 80% at 6% 0%, rgba(124, 255, 203, .10), transparent 58%),
    radial-gradient(90% 70% at 100% 6%, rgba(139, 92, 246, .13), transparent 62%),
    linear-gradient(180deg, var(--ink-1) 0%, var(--ink-0) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--line) 0 1px, transparent 1px 96px);
  opacity: .45;
}

.page-about .about-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-hero__overline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-about .about-hero__overline::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--neon);
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 58px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--ice);
}

.page-about .about-hero__text {
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.82;
  color: var(--ice-dim);
  max-width: 60ch;
}

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

/* 概况侧栏 */
.page-about .about-hero__side {
  position: relative;
  padding: 22px 18px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(19, 28, 46, .94), rgba(10, 16, 28, .9));
  box-shadow: var(--shadow-layer);
}

.page-about .about-hero__side::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 46px;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--neon-deep));
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.page-about .about-stats .stat:nth-child(-n + 2) {
  border-top: 0;
}

.page-about .about-stats .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--neon);
  line-height: 1.2;
}

.page-about .about-stats .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 区块头 ---------- */
.page-about .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}

.page-about .section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--neon);
}

.page-about .section-title {
  flex: 1 1 300px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4.4vw, 33px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--ice);
}

.page-about .section-note {
  flex: 0 1 320px;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 时间轴 ---------- */
.page-about .timeline {
  margin-top: 38px;
}

.page-about .timeline__list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-neon), var(--line) 40%, var(--line));
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 40px 34px;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(124, 255, 203, .14), 0 0 16px rgba(124, 255, 203, .38);
}

.page-about .timeline__stamp {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--steel);
  background: rgba(19, 28, 46, .7);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-about .timeline__panel {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid rgba(124, 255, 203, .4);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-2), rgba(10, 16, 28, .72));
  box-shadow: var(--shadow-layer);
}

.page-about .timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 3.6vw, 23px);
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-about .timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
  max-width: 64ch;
}

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

/* 媒体容器兜底 */
.page-about .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

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

.page-about .media-frame__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 三条主线 ---------- */
.page-about .track-switch {
  margin-top: 32px;
}

.page-about .track-switch__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-about .filter-button {
  padding: 9px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ice-dim);
  background: rgba(19, 28, 46, .72);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-about .filter-button:hover {
  border-color: var(--violet);
  color: var(--ice);
}

.page-about .filter-button.is-active {
  color: var(--ink-0);
  font-weight: 700;
  background: linear-gradient(90deg, var(--neon), var(--neon-deep));
  border-color: var(--neon);
}

.page-about .filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--steel);
}

.page-about .track-list {
  display: grid;
  gap: 16px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .track-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--ink-2), rgba(10, 16, 28, .7));
  overflow: hidden;
}

.page-about .track-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent 76%);
}

.page-about .track-card__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--neon);
}

.page-about .track-card__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-about .track-card__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-about .track-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

/* ---------- 团队分工 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 18px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .team-card {
  position: relative;
  z-index: 0;
  padding: 26px 20px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--ink-1);
  transition: transform .24s ease, border-color .24s ease;
}

.page-about .team-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 7px -6px -6px 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  pointer-events: none;
}

.page-about .team-card:hover {
  transform: translateY(-4px);
  border-color: var(--violet);
}

.page-about .team-card__index {
  display: inline-block;
  margin-bottom: 14px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--violet-soft);
  border: 1px solid rgba(196, 181, 253, .38);
  border-radius: var(--radius);
}

.page-about .team-card__role {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -.01em;
  color: var(--ice);
}

.page-about .team-card__text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

.page-about .team-card__output {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--line-strong);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ice-dim);
  transition: border-color .24s ease, color .24s ease;
}

.page-about .team-card:hover .team-card__output {
  border-left-color: var(--neon);
  color: var(--neon);
}

/* ---------- 授权流程 ---------- */
.page-about .license {
  margin-top: 30px;
}

.page-about .license__body {
  margin-bottom: 28px;
}

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

.page-about .flow__step {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--neon-deep);
  border-radius: var(--radius);
  background: rgba(19, 28, 46, .62);
}

.page-about .flow__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--neon);
}

.page-about .flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--ice);
  letter-spacing: -.01em;
}

.page-about .flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 覆盖范围 ---------- */
.page-about .coverage {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

.page-about .coverage__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .coverage__item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-about .coverage__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .coverage__num {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--neon);
  padding-top: 4px;
}

.page-about .coverage__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ice);
}

.page-about .coverage__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel);
}

.page-about .coverage__figure {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 10px;
  background: rgba(19, 28, 46, .6);
}

/* ---------- 行业协作 ---------- */
.page-about .collab {
  display: grid;
  gap: 20px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .collab__item {
  position: relative;
  padding: 22px 20px 20px;
  border-left: 2px solid var(--gold);
  background: linear-gradient(90deg, rgba(255, 198, 92, .07), transparent 72%);
}

.page-about .collab__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--gold);
}

.page-about .collab__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ice);
}

.page-about .collab__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel);
}

.page-about .scene-link {
  margin: 32px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ice-dim);
}

.page-about .scene-link a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 255, 203, .4);
}

.page-about .scene-link a:hover {
  color: var(--violet-soft);
  border-bottom-color: var(--violet-soft);
}

/* ============================================================
   断点
   ============================================================ */

@media (min-width: 620px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .collab {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 940px) {
  .page-about {
    --about-pad: 72px;
  }

  .page-about .about-hero {
    padding: 60px 0 72px;
  }

  .page-about .timeline__list::before {
    left: 113px;
    bottom: 32px;
  }

  .page-about .timeline__item {
    display: grid;
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    column-gap: var(--about-gap);
    padding: 0 0 64px 0;
  }

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

  .page-about .timeline__item::before {
    left: 108px;
    top: 14px;
  }

  .page-about .timeline__stamp {
    justify-self: end;
    align-self: start;
    writing-mode: vertical-rl;
    text-orientation: upright;
    margin: 0;
    padding: 10px 6px;
    letter-spacing: .22em;
    border: 0;
    border-right: 1px solid var(--line);
    background: none;
    border-radius: 0;
  }

  .page-about .timeline__panel {
    padding: 26px 24px;
  }

  .page-about .license {
    display: grid;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .license__body {
    margin-bottom: 0;
  }

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

  .page-about .coverage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1160px) {
  .page-about .team-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-card,
  .page-about .team-card__output,
  .page-about .filter-button {
    transition: none;
  }

  .page-about .team-card:hover {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>