.page-about {
  background: var(--ink);
  color: var(--snow);
}

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  margin-top: clamp(16px, 3vw, 30px);
}
.page-about .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-about .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}
.page-about .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  margin-top: clamp(18px, 3vw, 34px);
  border-top: var(--line-w) solid var(--line);
  border-bottom: var(--line-w) solid var(--line);
  position: relative;
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(70, 214, 230, 0.09) 0%, rgba(11, 20, 18, 0) 58%),
    var(--ink);
}
.page-about .ab-hero .wrap {
  padding-block: clamp(34px, 6vw, 84px);
}
.page-about .ab-hero__inner {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}
.page-about .ab-hero__eyebrow {
  color: var(--data);
  margin: 0 0 18px;
}
.page-about .ab-hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--snow);
  max-width: 18ch;
}
.page-about .ab-hero__lead {
  margin: 0 0 clamp(24px, 3vw, 34px);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.78;
  color: #D6E0DC;
  max-width: 42ch;
}
.page-about .ab-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: var(--line-w) solid var(--line);
}
.page-about .ab-stat {
  background: var(--deep-2);
  padding: 14px 14px 13px;
}
.page-about .ab-stat__k {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-about .ab-stat__num {
  margin: 8px 0 0;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  line-height: 1;
  color: var(--signal);
}
.page-about .ab-hero__media {
  margin: 0;
  border: var(--line-w) solid var(--line);
  box-shadow: var(--shadow-hard);
  align-self: start;
}
.page-about .ab-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

/* ---------- 通用：窄注栏 + 宽正文 ---------- */
.page-about .ab-entry {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}
.page-about .ab-note {
  border-left: var(--line-w) solid var(--line);
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-about .ab-note p {
  margin: 0 0 12px;
}
.page-about .ab-note .label {
  color: var(--amber);
  margin-bottom: 10px;
}
.page-about .ab-note__mark {
  color: var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin: 0;
}
.page-about .ab-body h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--snow);
}
.page-about .ab-body p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.78;
  color: #CFDAD6;
  max-width: 40em;
}
.page-about .ab-link {
  color: var(--data);
  text-decoration: none;
  border-bottom: 1px solid rgba(70, 214, 230, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-about .ab-link:hover,
.page-about .ab-link:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

/* ---------- 评测档案（暖纸色） ---------- */
.page-about .ab-review__card {
  background: var(--paper);
  color: var(--ink);
  border: var(--line-w) solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: clamp(22px, 4vw, 46px);
}
.page-about .ab-review__label {
  color: var(--ink);
  opacity: 0.65;
  margin: 0 0 14px;
}
.page-about .ab-review__head h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.18;
  color: var(--ink);
  max-width: 24ch;
}
.page-about .ab-review__intro {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: #3B4A45;
  max-width: 46em;
}
.page-about .ab-review__grid {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}
.page-about .ab-review__media {
  margin: 0;
  border: var(--line-w) solid var(--ink);
}
.page-about .ab-review__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1 / 1;
}
.page-about .ab-review__media .media__tag {
  background: var(--ink);
  color: var(--signal);
}

/* 评测维度：横向刻度条 */
.page-about .ab-tabs__list {
  display: grid;
  gap: 2px;
}
.page-about .ab-tab {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 44px;
  align-items: center;
  gap: 10px 12px;
  width: 100%;
  padding: 12px 4px;
  background: transparent;
  border: 0;
  border-bottom: 1px dashed #BCAF97;
  text-align: left;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-about .ab-tab:hover {
  background: rgba(11, 20, 18, 0.05);
}
.page-about .ab-tab:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.page-about .ab-tab__idx {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #7E8C86;
}
.page-about .ab-tab__name {
  min-width: 0;
}
.page-about .ab-tab__w {
  font-size: 13px;
  text-align: right;
  color: #4A5A54;
}
.page-about .ab-tab__bar {
  grid-column: 2 / span 2;
  height: 4px;
  background: #D3C9B4;
  overflow: hidden;
}
.page-about .ab-tab__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--ink);
  transition: width 320ms var(--ease);
}
.page-about .ab-tab[data-tab="coverage"] .ab-tab__fill { width: 92%; }
.page-about .ab-tab[data-tab="freshness"] .ab-tab__fill { width: 88%; }
.page-about .ab-tab[data-tab="squad"] .ab-tab__fill { width: 95%; }
.page-about .ab-tab[data-tab="history"] .ab-tab__fill { width: 84%; }
.page-about .ab-tab[data-tab="replay"] .ab-tab__fill { width: 90%; }
.page-about .ab-tab[aria-selected="true"],
.page-about .ab-tab.is-active {
  background: var(--ink);
  color: var(--paper);
}
.page-about .ab-tab[aria-selected="true"] .ab-tab__idx,
.page-about .ab-tab.is-active .ab-tab__idx {
  color: var(--signal);
}
.page-about .ab-tab[aria-selected="true"] .ab-tab__w,
.page-about .ab-tab.is-active .ab-tab__w {
  color: var(--data);
}
.page-about .ab-tab[aria-selected="true"] .ab-tab__bar,
.page-about .ab-tab.is-active .ab-tab__bar {
  background: #2A3A35;
}
.page-about .ab-tab[aria-selected="true"] .ab-tab__fill,
.page-about .ab-tab.is-active .ab-tab__fill {
  background: var(--signal);
}

/* 评测面板 */
.page-about .ab-tabs__panels {
  margin-top: 20px;
}
.page-about .ab-panel {
  border-left: 3px solid var(--ink);
  padding: 2px 0 2px 16px;
}
.page-about .ab-panel + .ab-panel {
  margin-top: 18px;
}
.page-about .ab-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--ink);
}
.page-about .ab-panel p {
  margin: 0 0 12px;
  font-size: 15.5px;
  line-height: 1.75;
  color: #3B4A45;
  max-width: 42em;
}
.page-about .ab-panel__field {
  display: block;
  margin: 0;
  padding: 9px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #26332F;
  background: #E3DAC7;
  border-left: 2px solid var(--data);
  word-break: break-word;
}

/* ---------- 团队 ---------- */
.page-about .ab-team__media {
  margin: 22px 0 24px;
  border: var(--line-w) solid var(--line);
}
.page-about .ab-team__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 9;
}

/* ---------- 版本沿革 ---------- */
.page-about .ab-timeline__head {
  border-top: var(--line-w) solid var(--line);
  padding-top: clamp(22px, 3vw, 34px);
  margin-bottom: clamp(28px, 4vw, 44px);
}
.page-about .ab-timeline__head .label {
  color: var(--amber);
  margin: 0 0 14px;
}
.page-about .ab-timeline__head h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.15;
  color: var(--snow);
  max-width: 22ch;
}
.page-about .ab-timeline__intro {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: #A9B7B2;
  max-width: 52em;
}
.page-about .ab-tl {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}
.page-about .ab-tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--line) 0%, var(--line) 72%, var(--signal) 100%);
}
.page-about .ab-tl__item {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 8px;
}
.page-about .ab-tl__item:last-child {
  padding-bottom: 0;
}
.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--line);
}
.page-about .ab-tl__item:last-child::before {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(201, 255, 63, 0.16);
}
.page-about .ab-tl__ver {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: start;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber);
  border: 1px solid currentColor;
  padding: 4px 10px;
}
.page-about .ab-tl__item:last-child .ab-tl__ver {
  color: var(--signal);
  background: rgba(201, 255, 63, 0.08);
}
.page-about .ab-tl__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.18rem;
  color: var(--snow);
}
.page-about .ab-tl__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: #A9B7B2;
  max-width: 46em;
}

/* ---------- 覆盖与合作 ---------- */
.page-about .ab-eco {
  border-top: var(--line-w) solid var(--line);
  background:
    linear-gradient(115deg, rgba(18, 36, 31, 0.95) 0%, rgba(11, 20, 18, 0.98) 62%),
    var(--deep);
}
.page-about .ab-eco__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}
.page-about .ab-eco__lead .label {
  color: var(--data);
  margin: 0 0 14px;
}
.page-about .ab-eco__lead h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.15;
  color: var(--snow);
  max-width: 20ch;
}
.page-about .ab-eco__lead p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  color: #CBD7D2;
  max-width: 42em;
}
.page-about .ab-eco__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: var(--line-w) solid var(--line);
}
.page-about .ab-eco__item {
  background: var(--deep-2);
  padding: 18px 16px;
  display: grid;
  gap: 8px;
  align-content: start;
}
.page-about .ab-eco__num {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1;
  color: var(--signal);
}
.page-about .ab-eco__txt {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 固定锚点 ---------- */
.page-about .ab-anchor__box {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  border: var(--line-w) solid var(--signal);
  box-shadow: var(--shadow-hard);
  background: var(--deep);
  padding: clamp(22px, 3.5vw, 42px);
}
.page-about .ab-anchor__copy .label {
  color: var(--signal);
  margin: 0 0 14px;
}
.page-about .ab-anchor__copy h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.16;
  color: var(--snow);
  max-width: 18ch;
}
.page-about .ab-anchor__copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: #CBD7D2;
  max-width: 44em;
}
.page-about .ab-anchor__links {
  display: grid;
  gap: 12px;
  align-content: start;
}
.page-about .ab-anchor__links .btn {
  text-align: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .ab-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-tab {
    grid-template-columns: auto minmax(0, 1fr) 120px 44px;
  }
  .page-about .ab-tab__bar {
    grid-column: 3;
  }
  .page-about .ab-anchor__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .ab-entry {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 56px);
  }
  .page-about .ab-note {
    position: sticky;
    top: 96px;
  }
  .page-about .ab-timeline__head {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: end;
  }
  .page-about .ab-timeline__head .label {
    grid-column: 1 / -1;
  }
  .page-about .ab-timeline__head h2 {
    margin-bottom: 0;
  }
  .page-about .ab-eco__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .ab-eco__list {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-about .ab-anchor__box {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
  }
  .page-about .ab-tl__item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
  .page-about .ab-tl__ver {
    justify-content: center;
  }
}

@media (min-width: 1000px) {
  .page-about .ab-review__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-tab,
  .page-about .ab-tab__fill,
  .page-about .breadcrumb a,
  .page-about .ab-link {
    transition: none;
  }
}
<<<END>>>