.page-about {
  --about-rule: rgba(139, 147, 176, .22);
  --about-soft: rgba(20, 28, 63, .72);
  background: var(--xb-indigo);
  color: var(--xb-paper);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: calc(var(--xb-header-h) + 18px);
  padding-bottom: 6px;
}

.page-about .xb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--xb-mist);
}

.page-about .xb-breadcrumb a {
  color: var(--xb-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--xb-ease), border-color .2s var(--xb-ease);
}

.page-about .xb-breadcrumb a:hover,
.page-about .xb-breadcrumb a:focus-visible {
  color: var(--xb-cyan);
  border-bottom-color: var(--xb-cyan);
}

.page-about .xb-breadcrumb [aria-current="page"] {
  color: var(--xb-paper);
}

/* ---------- 通用标题 ---------- */
.page-about .about-h2 {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(1.6rem, 5.4vw, 2.9rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  margin: 6px 0 0;
  color: var(--xb-paper);
}

.page-about .about-h3 {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-size: clamp(1.08rem, 3.4vw, 1.38rem);
  line-height: 1.3;
  margin: 0 0 12px;
  color: var(--xb-paper);
}

.page-about .about-section-lead {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: .97rem;
  line-height: 1.8;
  color: var(--xb-mist);
}

.page-about a {
  color: var(--xb-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 192, .35);
  transition: border-color .2s var(--xb-ease), color .2s var(--xb-ease);
}

.page-about a:hover,
.page-about a:focus-visible {
  border-bottom-color: var(--xb-cyan);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 26px 0 54px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--xb-amber);
}

.page-about .about-hero h1 {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(2rem, 8.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  margin: 0;
  max-width: 18ch;
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 44ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(242, 244, 250, .82);
}

.page-about .about-hero__side {
  display: grid;
  gap: 14px;
  padding: 22px 20px;
  border: 1px solid var(--about-rule);
  border-top: 2px solid var(--xb-amber);
  background: var(--about-soft);
}

.page-about .about-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-hero__fact:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-hero__fact-num {
  font-family: var(--xb-font-mono);
  font-size: clamp(1.8rem, 7vw, 2.6rem);
  font-weight: 700;
  color: var(--xb-amber);
  letter-spacing: -.02em;
}

.page-about .about-hero__fact-label {
  font-size: .84rem;
  line-height: 1.5;
  color: var(--xb-mist);
}

.page-about .about-hero__side-note {
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--about-rule);
  font-size: .82rem;
  line-height: 1.7;
  color: var(--xb-mist);
}

/* ---------- 品牌概览 ---------- */
.page-about .about-overview__grid {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-about .about-overview__text p {
  margin: 0 0 18px;
  max-width: 46ch;
  font-size: .97rem;
  line-height: 1.9;
  color: rgba(242, 244, 250, .84);
}

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

/* ---------- 图片容器 ---------- */
.page-about .about-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--about-rule);
  background: var(--xb-navy);
  overflow: hidden;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.5) contrast(1.06);
}

.page-about .about-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--xb-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--xb-grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .7;
}

.page-about .about-figure figcaption {
  position: relative;
  z-index: 1;
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--xb-mist);
  border-top: 1px solid var(--about-rule);
  background: var(--xb-navy);
}

.page-about .about-figure--wide img {
  aspect-ratio: 16 / 7;
}

.page-about .about-figure--tall img {
  aspect-ratio: 3 / 4;
}

.page-about .about-figure--verdict img {
  aspect-ratio: 3 / 2;
}

/* ---------- 轮次色带 ---------- */
.page-about .about-band {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px var(--xb-gutter);
  margin: 0;
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
  background: linear-gradient(90deg, rgba(232, 163, 61, .1), transparent 60%);
  transform-origin: center;
}

.page-about .about-band .xb-band__num {
  font-family: var(--xb-font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--xb-amber);
  letter-spacing: .08em;
}

.page-about .about-band .xb-band__label {
  font-family: var(--xb-font-head);
  font-size: clamp(.95rem, 3.6vw, 1.2rem);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--xb-paper);
}

/* ---------- 流程步骤 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-flow__item {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-step {
  display: block;
}

.page-about .about-step__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-step__summary:focus-visible {
  outline: 2px solid var(--xb-cyan);
  outline-offset: 3px;
}

.page-about .about-step__num {
  font-family: var(--xb-font-mono);
  font-size: clamp(1.9rem, 9vw, 3.2rem);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px var(--xb-mist);
}

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

.page-about .about-step__title {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-size: clamp(1.05rem, 4.2vw, 1.4rem);
  line-height: 1.25;
  color: var(--xb-paper);
}

.page-about .about-step__meta {
  font-size: .78rem;
  letter-spacing: .03em;
  color: var(--xb-mist);
}

.page-about .about-step__hint {
  position: relative;
  width: 16px;
  height: 16px;
  flex: none;
}

.page-about .about-step__hint::before,
.page-about .about-step__hint::after {
  content: "";
  position: absolute;
  background: var(--xb-cyan);
  transition: transform .25s var(--xb-ease);
}

.page-about .about-step__hint::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 1px;
}

.page-about .about-step__hint::after {
  top: 0;
  left: 7px;
  width: 1px;
  height: 16px;
}

.page-about .about-step[open] .about-step__hint::after {
  transform: scaleY(0);
}

.page-about .about-step[open] .about-step__title {
  color: var(--xb-amber);
}

.page-about .about-step__body {
  padding: 2px 0 22px;
  max-width: 62ch;
}

.page-about .about-step__body p {
  margin: 0 0 16px;
  font-size: .94rem;
  line-height: 1.85;
  color: rgba(242, 244, 250, .82);
}

.page-about .about-step__io {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--xb-amber);
  background: rgba(20, 28, 63, .6);
}

.page-about .about-step__io > div {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
}

.page-about .about-step__io dt {
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--xb-amber);
}

.page-about .about-step__io dd {
  margin: 0;
  font-size: .84rem;
  line-height: 1.6;
  color: var(--xb-mist);
}

/* ---------- 阵容核对 ---------- */
.page-about .about-lineup {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-about .about-lineup__grid {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

.page-about .about-compare {
  border: 1px solid var(--about-rule);
  background: rgba(20, 28, 63, .62);
}

.page-about .about-compare__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--about-rule);
  background: rgba(35, 43, 77, .7);
  position: sticky;
  top: 0;
}

.page-about .about-compare__title {
  margin: 0;
  font-family: var(--xb-font-head);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: .06em;
  color: var(--xb-paper);
}

.page-about .about-compare__scroll {
  max-height: 262px;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-compare__table {
  width: 100%;
  border-collapse: collapse;
  font-size: .86rem;
}

.page-about .about-compare__table th,
.page-about .about-compare__table td {
  padding: 9px 14px;
  text-align: left;
  border-bottom: 1px solid var(--about-rule);
  color: rgba(242, 244, 250, .86);
}

.page-about .about-compare__table th {
  font-size: .72rem;
  letter-spacing: .14em;
  font-weight: 500;
  color: var(--xb-mist);
}

.page-about .about-compare__table td:last-child {
  color: var(--xb-cyan);
}

.page-about .about-lineup__notes {
  margin-top: 28px;
}

.page-about .about-recheck {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: recheck;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-recheck li {
  counter-increment: recheck;
  position: relative;
  padding: 16px 0 16px 44px;
  border-bottom: 1px solid var(--about-rule);
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(242, 244, 250, .8);
}

.page-about .about-recheck li::before {
  content: counter(recheck, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--xb-font-mono);
  font-size: .82rem;
  color: var(--xb-amber);
}

.page-about .about-recheck strong {
  color: var(--xb-paper);
  font-weight: 600;
}

.page-about .about-lineup__trace {
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--xb-amber);
  font-size: .84rem;
  line-height: 1.75;
  color: var(--xb-mist);
}

.page-about .about-lineup__rail {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-about .about-rail-card {
  border: 1px solid var(--about-rule);
  background: rgba(20, 28, 63, .62);
  padding: 16px;
}

.page-about .about-rail-card .xb-card__title {
  margin: 0;
  font-family: var(--xb-font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--xb-paper);
}

.page-about .about-rail-card__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-rail-card__list li {
  font-size: .82rem;
  line-height: 1.7;
  color: var(--xb-mist);
}

.page-about .about-rail-card__list .xb-badge {
  margin-right: 6px;
}

/* ---------- 判罚依据 ---------- */
.page-about .about-verdicts__grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-about .about-verdict-list {
  margin: 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-verdict-list__row {
  padding: 16px 0;
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-verdict-list__row dt {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-size: 1rem;
  color: var(--xb-amber);
  margin-bottom: 8px;
}

.page-about .about-verdict-list__row dd {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(242, 244, 250, .8);
}

.page-about .about-example {
  margin: 26px 0 0;
}

.page-about .about-example .xb-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--xb-amber);
  background: rgba(20, 28, 63, .55);
  font-size: 13px;
  line-height: 1.7;
  color: var(--xb-mist);
}

.page-about .about-example figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--xb-mist);
}

/* ---------- 计时 ---------- */
.page-about .about-clock {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-about .about-clock__item {
  padding: 22px 18px;
  border: 1px solid var(--about-rule);
  background: rgba(20, 28, 63, .55);
}

.page-about .about-clock__num {
  display: block;
  font-family: var(--xb-font-mono);
  font-size: clamp(2.2rem, 9vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--xb-cyan);
}

.page-about .about-clock__unit {
  font-size: .42em;
  margin-left: 6px;
  color: var(--xb-mist);
  letter-spacing: .06em;
}

.page-about .about-clock__title {
  margin: 14px 0 10px;
  font-family: var(--xb-font-head);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--xb-paper);
}

.page-about .about-clock__item p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--xb-mist);
}

.page-about .about-clock__foot {
  margin: 24px 0 0;
  font-size: .87rem;
  line-height: 1.8;
  color: var(--xb-mist);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

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

.page-about .about-team__card {
  padding: 18px;
  border: 1px solid var(--about-rule);
  background: rgba(20, 28, 63, .55);
}

.page-about .about-team__card .xb-card__title {
  margin: 0;
  font-family: var(--xb-font-head);
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--xb-paper);
}

.page-about .about-team__card p {
  margin: 12px 0 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--xb-mist);
}

.page-about .about-team__network {
  padding: 22px 18px;
  border: 1px solid var(--about-rule);
  border-top: 2px solid var(--xb-cyan);
  background: rgba(11, 18, 48, .7);
}

.page-about .about-team__net-head p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.85;
  color: rgba(242, 244, 250, .8);
}

.page-about .about-team__net-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-team__net-stats .xb-kpi {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-team__net-stats .xb-kpi__value {
  font-family: var(--xb-font-mono);
  font-size: clamp(1.4rem, 6vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--xb-amber);
}

.page-about .about-team__net-stats .xb-kpi__label {
  font-size: .74rem;
  line-height: 1.55;
  color: var(--xb-mist);
}

/* ---------- 版本时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 28px 0 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--xb-steel);
}

.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 10px;
}

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

.page-about .about-version__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-version__summary:focus-visible {
  outline: 2px solid var(--xb-cyan);
  outline-offset: 3px;
}

.page-about .about-version__node {
  position: absolute;
  left: -26px;
  top: 20px;
  width: 11px;
  height: 11px;
  background: var(--xb-navy);
  border: 1px solid var(--xb-cyan);
  transform: rotate(45deg);
}

.page-about .about-version[open] .about-version__node {
  background: var(--xb-amber);
  border-color: var(--xb-amber);
}

.page-about .about-version__label {
  font-family: var(--xb-font-mono);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--xb-amber);
  min-width: 2.4em;
}

.page-about .about-version__title {
  font-family: var(--xb-font-head);
  font-weight: 800;
  font-size: clamp(1rem, 4vw, 1.25rem);
  color: var(--xb-paper);
  line-height: 1.3;
}

.page-about .about-version__body {
  padding: 0 0 16px 3.4em;
}

.page-about .about-version__body p {
  margin: 0;
  max-width: 56ch;
  font-size: .88rem;
  line-height: 1.85;
  color: var(--xb-mist);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  border-top: 1px solid var(--about-rule);
  background: linear-gradient(180deg, rgba(20, 28, 63, .9), rgba(11, 18, 48, .95));
}

.page-about .about-cta__inner {
  display: grid;
  gap: 22px;
  padding-top: 44px;
  padding-bottom: 54px;
}

.page-about .about-cta__text p {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--xb-mist);
}

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

.page-about .xb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 24px;
  font-family: var(--xb-font-head);
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: .06em;
  border: 1px solid transparent;
  border-bottom-width: 1px;
  text-decoration: none;
  transition: background .22s var(--xb-ease), color .22s var(--xb-ease), border-color .22s var(--xb-ease);
}

.page-about .xb-btn--solid {
  background: var(--xb-amber);
  color: var(--xb-indigo);
  border-color: var(--xb-amber);
}

.page-about .xb-btn--solid:hover,
.page-about .xb-btn--solid:focus-visible {
  background: var(--xb-cyan);
  border-color: var(--xb-cyan);
  color: var(--xb-indigo);
}

.page-about .xb-btn--ghost {
  background: transparent;
  color: var(--xb-paper);
  border-color: var(--about-rule);
}

.page-about .xb-btn--ghost:hover,
.page-about .xb-btn--ghost:focus-visible {
  border-color: var(--xb-cyan);
  color: var(--xb-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-overview__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-about .about-lineup__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

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

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

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 30px;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }

  .page-about .about-band {
    padding-left: calc((100vw - var(--xb-wrap)) / 2 + var(--xb-gutter));
    padding-right: calc((100vw - var(--xb-wrap)) / 2 + var(--xb-gutter));
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 44px;
    padding-bottom: 74px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }

  .page-about .about-overview__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 48px;
  }

  .page-about .about-lineup {
    grid-template-columns: minmax(0, 8fr) minmax(0, 3fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-about .about-verdicts__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 42px;
    align-items: start;
  }

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

  .page-about .about-compare__scroll {
    max-height: 320px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-step__hint::after,
  .page-about .about-step__hint::before,
  .page-about .xb-btn {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</｜｜DSML｜｜ invoke>
</｜｜DSML｜｜ calls>