/* ===== 品牌自述页 · page-about ===== */

.page-about {
  --about-gap: clamp(28px, 5vw, 56px);
  overflow-x: clip;
}

.page-about .crumbs {
  padding-top: clamp(18px, 3vw, 30px);
  margin-bottom: clamp(22px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding-bottom: clamp(32px, 6vw, 64px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 5vw, 44px);
  align-items: start;
}

.page-about .about-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero__ver {
  display: block;
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: clamp(2.8rem, 11vw, 4.2rem);
  line-height: .88;
  letter-spacing: -.04em;
  color: var(--cyan);
  text-shadow: 0 0 32px rgba(49, 225, 225, .35);
}

.page-about .about-hero__aside-note {
  color: var(--mist);
  font-size: .78rem;
  letter-spacing: .08em;
}

.page-about .about-hero__body .display {
  margin: 10px 0 0;
}

.page-about .about-hero__body .lede {
  margin-top: clamp(14px, 2.4vw, 22px);
  max-width: 62ch;
  color: var(--ice);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  border-top: 1px solid var(--line);
  padding-top: clamp(18px, 3vw, 26px);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: clamp(1.7rem, 5vw, 2.3rem);
  line-height: 1;
  color: var(--amber);
  letter-spacing: -.02em;
}

.page-about .about-hero__cap {
  font-size: .82rem;
  line-height: 1.5;
  color: var(--mist);
}

.page-about .about-hero__media {
  margin: 0;
  min-width: 0;
}

.page-about .about-hero__media .img-frame {
  aspect-ratio: 3 / 2;
  background: linear-gradient(155deg, var(--ink-2) 0%, var(--mid) 58%, rgba(255, 77, 157, .28) 100%);
}

/* ---------- 章节索引 ---------- */

.page-about .toc {
  padding: clamp(20px, 3vw, 28px) 0 clamp(26px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-about .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
}

.page-about .toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .84rem;
  color: var(--ice);
  text-decoration: none;
  transition: border-color var(--dur) ease, color var(--dur) ease, background-color var(--dur) ease;
}

.page-about .toc__link:hover,
.page-about .toc__link:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(49, 225, 225, .08);
  outline: none;
}

.page-about .toc__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--amber);
}

/* ---------- 章节骨架 ---------- */

.page-about .chapter {
  padding: clamp(48px, 8vw, 88px) 0 0;
}

.page-about .chapter--last {
  padding-bottom: clamp(40px, 7vw, 76px);
}

.page-about .chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 36px);
}

.page-about .chapter__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.page-about .chapter__num {
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: clamp(2.6rem, 9vw, 4.2rem);
  line-height: .86;
  letter-spacing: -.04em;
  color: rgba(49, 225, 225, .34);
}

.page-about .chapter__title {
  margin: 0;
  font-size: clamp(1.4rem, 4.4vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--ice);
}

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

.page-about .chapter__body p {
  margin: 0 0 1.1em;
  max-width: 68ch;
  color: var(--ice);
  line-height: 1.78;
}

.page-about .chapter__lead {
  font-size: clamp(1.02rem, 2.4vw, 1.16rem);
  color: var(--ice);
}

.page-about .chapter__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(49, 225, 225, .4);
  padding-bottom: 2px;
  font-size: .92rem;
}

.page-about .chapter__link:hover,
.page-about .chapter__link:focus-visible {
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-about .chapter__more {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 01 业务范围 ---------- */

.page-about .scope-panel {
  margin-top: clamp(22px, 3vw, 32px);
  padding: clamp(18px, 3vw, 26px);
  background: linear-gradient(120deg, rgba(19, 43, 77, .92), rgba(11, 27, 51, .92));
  border: 1px solid var(--line);
  display: grid;
  gap: 16px;
}

.page-about .scope-panel__row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(148, 170, 200, .16);
}

.page-about .scope-panel__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .scope-panel__key {
  font-size: 1rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-about .scope-panel__val {
  font-size: .9rem;
  line-height: 1.7;
  color: var(--ice);
}

/* ---------- 02 两条产品线 ---------- */

.page-about .lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: clamp(22px, 3vw, 32px) 0 clamp(24px, 3vw, 34px);
}

.page-about .lines__card {
  padding: clamp(20px, 3vw, 28px);
  background: rgba(19, 43, 77, .72);
  border: 1px solid var(--line);
  border-radius: var(--r);
  border-left: 3px solid var(--cyan);
}

.page-about .lines__card--alt {
  border-left-color: var(--magenta);
  background: rgba(255, 77, 157, .07);
}

.page-about .lines__tag {
  display: inline-block;
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--cyan);
  border: 1px solid rgba(49, 225, 225, .35);
  border-radius: 999px;
  padding: 4px 10px;
}

.page-about .lines__card--alt .lines__tag {
  color: var(--magenta);
  border-color: rgba(255, 77, 157, .4);
}

.page-about .lines__name {
  margin: 14px 0 10px;
  font-size: clamp(1.06rem, 2.6vw, 1.24rem);
  color: var(--ice);
  line-height: 1.35;
}

.page-about .lines__card p {
  margin: 0 0 14px;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .lines__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .lines__list li {
  position: relative;
  padding-left: 18px;
  font-size: .88rem;
  line-height: 1.65;
  color: var(--ice);
}

.page-about .lines__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 1px;
  background: var(--cyan);
}

.page-about .lines__card--alt .lines__list li::before {
  background: var(--magenta);
}

/* ---------- 03 桌台池 ---------- */

.page-about .pool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0;
}

.page-about .pool-card {
  padding: clamp(16px, 2.6vw, 22px);
  background: linear-gradient(150deg, rgba(19, 43, 77, .95), rgba(11, 27, 51, .9));
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.page-about .pool-card__num {
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  font-weight: 200;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -.02em;
}

.page-about .pool-card__label {
  font-size: .82rem;
  line-height: 1.55;
  color: var(--mist);
}

.page-about .pool-heat {
  display: grid;
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: rgba(19, 43, 77, .5);
}

.page-about .pool-heat__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 60px;
  align-items: center;
  gap: 12px;
}

.page-about .pool-heat__key {
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--ice);
}

.page-about .pool-heat__val {
  font-size: .8rem;
  color: var(--mist);
  text-align: right;
  white-space: nowrap;
}

.page-about .pool-heat .heat-bar {
  min-width: 0;
}

/* ---------- 04 团队分工 ---------- */

.page-about .team-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(18px, 2.6vw, 24px);
}

.page-about .team-tabs .tab {
  font: inherit;
  font-size: .88rem;
  padding: 9px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--mist);
  cursor: pointer;
  transition: color var(--dur) ease, border-color var(--dur) ease, background-color var(--dur) ease;
}

.page-about .team-tabs .tab:hover,
.page-about .team-tabs .tab:focus-visible {
  color: var(--ice);
  border-color: rgba(49, 225, 225, .5);
  outline: none;
}

.page-about .team-tabs .tab[aria-selected="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .team-panels {
  display: grid;
  gap: 14px;
}

.page-about .team-sheet {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: linear-gradient(140deg, rgba(19, 43, 77, .9), rgba(11, 27, 51, .82));
}

.page-about .team-sheet__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.page-about .team-sheet__count {
  font-size: 1.5rem;
  font-weight: 200;
  color: var(--amber);
  line-height: 1;
}

.page-about .team-sheet__name {
  margin: 0;
  font-size: 1.08rem;
  color: var(--ice);
}

.page-about .team-sheet p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
}

.page-about .team-figure {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
}

.page-about .team-figure .img-frame {
  aspect-ratio: 10 / 7;
  background: linear-gradient(135deg, var(--ink-2) 0%, var(--mid) 55%, rgba(49, 225, 225, .22) 100%);
}

/* ---------- 05 版本迭代 ---------- */

.page-about .ver-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(18px, 2.6vw, 24px);
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-about .ver-rail__node {
  flex: 0 0 auto;
  font: inherit;
  font-family: var(--font-mono);
  font-size: .86rem;
  letter-spacing: .06em;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(19, 43, 77, .6);
  color: var(--mist);
  cursor: pointer;
  transition: color var(--dur) ease, border-color var(--dur) ease, background-color var(--dur) ease;
}

.page-about .ver-rail__node:hover,
.page-about .ver-rail__node:focus-visible {
  color: var(--ice);
  border-color: rgba(255, 181, 71, .55);
  outline: none;
}

.page-about .ver-rail__node[aria-selected="true"] {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-about .ver-panels {
  display: grid;
  gap: 14px;
}

.page-about .ver-sheet {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r);
  background: rgba(19, 43, 77, .62);
}

.page-about .ver-sheet__tag {
  display: inline-block;
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--amber);
  margin-bottom: 10px;
}

.page-about .ver-sheet__name {
  margin: 0 0 10px;
  font-size: 1.06rem;
  color: var(--ice);
  line-height: 1.35;
}

.page-about .ver-sheet p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--mist);
  max-width: 62ch;
}

.page-about .ver-figure {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
}

.page-about .ver-figure .img-frame {
  aspect-ratio: 7 / 3;
  background: linear-gradient(115deg, var(--ink-2) 0%, rgba(27, 78, 122, .95) 45%, rgba(255, 77, 157, .3) 100%);
}

/* ---------- 06 内容合作 ---------- */

.page-about .collab-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: none;
}

.page-about .collab-step {
  position: relative;
  padding: clamp(18px, 3vw, 24px) clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: linear-gradient(125deg, rgba(19, 43, 77, .88), rgba(11, 27, 51, .8));
  overflow: hidden;
}

.page-about .collab-step::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 96px;
  height: 96px;
  border: 1px solid rgba(49, 225, 225, .18);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .collab-step__no {
  display: block;
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--cyan);
  margin-bottom: 8px;
}

.page-about .collab-step__name {
  margin: 0 0 8px;
  font-size: 1.04rem;
  color: var(--ice);
}

.page-about .collab-step p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.76;
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 07 身份信息 ---------- */

.page-about .ledger {
  margin: clamp(22px, 3vw, 32px) 0 clamp(22px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-about .ledger__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px clamp(16px, 2.6vw, 22px);
  border-bottom: 1px solid rgba(148, 170, 200, .14);
  background: rgba(19, 43, 77, .5);
}

.page-about .ledger__row:nth-child(even) {
  background: rgba(11, 27, 51, .55);
}

.page-about .ledger__row:last-child {
  border-bottom: 0;
}

.page-about .ledger__key {
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-about .ledger__val {
  margin: 0;
  font-size: .95rem;
  color: var(--ice);
}

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

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about .toc__link,
  .page-about .team-tabs .tab,
  .page-about .ver-rail__node {
    transition: none;
  }
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

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

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

  .page-about .ledger__row {
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 960px) {
  .page-about .about-hero__grid {
    grid-template-columns: 180px minmax(0, 1fr) minmax(0, 400px);
    gap: clamp(28px, 3.4vw, 48px);
  }

  .page-about .about-hero__aside {
    padding-top: 8px;
  }

  .page-about .chapter__grid {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-about .chapter__head {
    position: sticky;
    top: 96px;
    align-self: start;
  }

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

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

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

  .page-about .collab-step {
    display: flex;
    flex-direction: column;
  }
}

@media (min-width: 1200px) {
  .page-about .about-hero__grid {
    grid-template-columns: 200px minmax(0, 1fr) minmax(0, 440px);
  }

  .page-about .chapter__grid {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}
</｜｜DSML｜｜ parameter>
</invoke>