/* ===== 品牌价值页 / page-about ===== */
.page-about {
  --ab-hair: var(--line);
  --ab-dim: rgba(245, 241, 232, 0.68);
  --ab-dim-2: rgba(245, 241, 232, 0.78);
  background: var(--ink-000);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 首屏拼贴 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(38px, 6vw, 76px) clamp(36px, 5vw, 68px);
  background: var(--ink-100);
  border-bottom: 1px solid var(--ab-hair);
}

.page-about .about-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-about .about-hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  display: block;
  background:
    radial-gradient(88% 96% at 84% 0%, rgba(61, 245, 224, 0.18), transparent 62%),
    radial-gradient(70% 80% at 4% 100%, rgba(255, 106, 61, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(5, 10, 20, 0.52) 0%, rgba(5, 10, 20, 0.9) 66%, var(--ink-000) 100%);
}

.page-about .about-crumb {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  margin-top: clamp(14px, 2vw, 22px);
}

.page-about .about-hero__title {
  margin: 0;
  max-width: 620px;
  font-size: clamp(32px, 5.6vw, 68px);
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--paper);
}

.page-about .about-hero__lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 1.78;
  color: var(--ab-dim-2);
}

.page-about .about-hero__plate {
  display: grid;
  gap: 8px;
  justify-items: start;
  padding: clamp(18px, 2.4vw, 24px);
  background: rgba(17, 28, 46, 0.78);
  border: 1px solid var(--ab-hair);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius);
}

.page-about .about-hero__plate-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-hero__plate-num {
  font-family: var(--font-num);
  font-size: clamp(56px, 8vw, 84px);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.page-about .about-hero__plate-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ab-dim);
}

/* ---------- 数据条 ---------- */
.page-about .about-stats {
  border-bottom: 1px solid var(--ab-hair);
  background: var(--ink-000);
}

.page-about .about-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-hair);
  border-left: 1px solid var(--ab-hair);
  border-right: 1px solid var(--ab-hair);
}

.page-about .about-stats__cell {
  display: grid;
  gap: 6px;
  padding: clamp(16px, 2.4vw, 26px) clamp(14px, 2vw, 22px);
  background: var(--ink-000);
}

.page-about .about-stats__num {
  font-family: var(--font-num);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-stats__num small {
  font-size: 0.5em;
  font-weight: 600;
  margin-left: 2px;
  color: var(--cyan);
}

.page-about .about-stats__label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 主体：索引 + 章节 ---------- */
.page-about .about-body {
  padding-block: clamp(36px, 5vw, 68px) clamp(48px, 7vw, 96px);
}

.page-about .about-body__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .about-index__head {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-about .about-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 12px;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  border-radius: 999px;
  background: rgba(17, 28, 46, 0.6);
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .about-index__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--cyan);
  background: rgba(61, 245, 224, 0.1);
}

.page-about .about-index__link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

/* ---------- 章节 ---------- */
.page-about .chapter {
  padding-block: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--ab-hair);
}

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

.page-about .chapter__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-about .chapter__no {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-about .chapter__title {
  margin: 0;
  max-width: 20em;
  font-size: clamp(23px, 3vw, 36px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .chapter__intro {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ab-dim);
}

.page-about .eco-note {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ab-dim);
}

.page-about .eco-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 版本演进 ---------- */
.page-about .ver-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-about .ver {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: clamp(12px, 2vw, 22px);
  align-items: start;
  padding: 16px 12px;
  border-top: 1px solid var(--ab-hair);
  border-radius: 10px;
  transition: background-color 0.24s var(--ease);
}

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

.page-about .ver:hover,
.page-about .ver:focus-within {
  background: rgba(61, 245, 224, 0.06);
}

.page-about .ver:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-about .ver__tag {
  font-family: var(--font-num);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--muted);
  transition: color 0.24s var(--ease);
}

.page-about .ver:hover .ver__tag,
.page-about .ver:focus-within .ver__tag {
  color: var(--cyan);
}

.page-about .ver__title {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--paper);
}

.page-about .ver__text {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ab-dim);
}

.page-about .ver__more {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  transition: color 0.24s var(--ease);
}

.page-about .ver:hover .ver__more,
.page-about .ver:focus-within .ver__more {
  color: var(--cyan);
}

/* ---------- 团队 ---------- */
.page-about .team-split {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-about .team-split__media {
  margin: 0;
  border: 1px solid var(--ab-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .team-split__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .team-ring-wrap {
  display: grid;
  grid-template-columns: 124px minmax(0, 1fr);
  gap: clamp(16px, 2.4vw, 26px);
  align-items: center;
}

.page-about .team-ring {
  width: 124px;
  height: 124px;
}

.page-about .team-ring__track {
  stroke: var(--ab-hair);
}

.page-about .team-ring__arc {
  stroke: var(--cyan);
}

.page-about .team-ring__val {
  font-family: var(--font-num);
  font-size: 25px;
  font-weight: 700;
  fill: var(--paper);
}

.page-about .team-ring__cap {
  font-size: 10px;
  letter-spacing: 0.1em;
  fill: var(--muted);
}

.page-about .team-roles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-about .team-roles li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--ab-hair);
  font-size: 14px;
  line-height: 1.68;
  color: var(--ab-dim);
}

.page-about .team-roles li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .team-roles b {
  flex: 0 0 84px;
  font-size: 13px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .team-roles span {
  flex: 1 1 180px;
  min-width: 0;
}

/* ---------- 覆盖 ---------- */
.page-about .cover-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-about .cover-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
}

.page-about .cover-list li {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--ab-hair);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ab-dim);
}

.page-about .cover-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .cover-list span {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--orange);
  padding-top: 3px;
}

.page-about .cover-list p {
  margin: 0;
  min-width: 0;
}

.page-about .cover-map {
  min-height: 234px;
  border: 1px solid var(--ab-hair);
  border-radius: var(--radius);
  background-color: var(--ink-100);
  background-image:
    radial-gradient(circle at 28% 38%, rgba(61, 245, 224, 0.62) 0 3px, transparent 4px),
    radial-gradient(circle at 66% 28%, rgba(61, 245, 224, 0.44) 0 2px, transparent 3px),
    radial-gradient(circle at 50% 62%, rgba(255, 106, 61, 0.7) 0 3px, transparent 4px),
    radial-gradient(circle at 80% 72%, rgba(61, 245, 224, 0.42) 0 2px, transparent 3px),
    radial-gradient(circle at 18% 74%, rgba(61, 245, 224, 0.32) 0 2px, transparent 3px),
    radial-gradient(var(--ab-hair) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 20px 20px;
  background-repeat: no-repeat, no-repeat, no-repeat, no-repeat, no-repeat, repeat;
}

/* ---------- 合作生态 ---------- */
.page-about .eco-media {
  margin: 0;
  border: 1px solid var(--ab-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .eco-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .eco-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .eco-tags li {
  padding: 6px 14px;
  font-size: 13px;
  color: var(--ab-dim-2);
  background: rgba(17, 28, 46, 0.7);
  border: 1px solid var(--ab-hair);
  border-radius: 999px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .eco-tags li:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 服务承诺 ---------- */
.page-about .promise-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--ab-hair);
  border: 1px solid var(--ab-hair);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .promise {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-000);
}

.page-about .promise__k {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-about .promise__label {
  display: block;
  margin-top: 9px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .promise p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ab-dim);
}

/* ---------- 收尾入口 ---------- */
.page-about .about-cta {
  margin-top: clamp(34px, 5vw, 58px);
  padding: clamp(24px, 3.6vw, 44px);
  border: 1px solid var(--ab-hair);
  border-radius: calc(var(--radius) + 6px);
  background:
    radial-gradient(120% 130% at 0% 0%, rgba(255, 106, 61, 0.16), transparent 58%),
    radial-gradient(100% 120% at 100% 100%, rgba(61, 245, 224, 0.12), transparent 60%),
    var(--ink-100);
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-cta__text {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.76;
  color: var(--ab-dim);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

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

  .page-about .ver {
    grid-template-columns: 92px minmax(0, 1fr);
    padding-inline: 16px;
  }
}

@media (min-width: 760px) {
  .page-about .team-split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-about .cover-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }

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

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1fr) 268px;
    align-items: end;
  }

  .page-about .about-body__inner {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-about .about-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 1px;
  }

  .page-about .about-index__link {
    padding: 8px 14px;
    border-radius: 0 8px 8px 0;
    border-left: 2px solid var(--ab-hair);
    background: transparent;
  }

  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-about .chapter {
    padding-block: clamp(34px, 4vw, 54px);
  }
}

@media (max-width: 519px) {
  .page-about .team-ring-wrap {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .page-about .cover-list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .page-about .cover-list span {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ver,
  .page-about .ver__tag,
  .page-about .ver__more,
  .page-about .about-index__link,
  .page-about .eco-tags li {
    transition: none;
  }
}
<<<END>>>