.page-about {
  background: var(--hx-ink);
  color: var(--hx-cool);
  font-family: var(--hx-sans);
  overflow-x: hidden;
  padding-bottom: clamp(40px, 7vw, 90px);
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about .ab-shell {
  width: 100%;
  max-width: var(--hx-shell);
  margin: 0 auto;
  padding-left: var(--hx-gutter);
  padding-right: var(--hx-gutter);
}

.page-about p {
  margin: 0 0 14px;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  overflow: hidden;
  background: var(--hx-ink);
  border-bottom: 1px solid var(--hx-line);
  padding: clamp(28px, 5vw, 52px) 0 clamp(36px, 6vw, 72px);
}

.page-about .ab-hero::before {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -42%;
  width: 74%;
  height: 120%;
  background: var(--hx-wine);
  opacity: 0.55;
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .ab-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(120px, 22vw, 220px);
  width: clamp(60px, 18vw, 210px);
  height: 4px;
  background: var(--hx-orange);
  pointer-events: none;
}

.page-about .ab-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .ab-crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--hx-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hx-mid);
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-about .ab-crumbs a {
  color: var(--hx-cool-2);
  text-decoration: none;
}

.page-about .ab-crumbs a:hover {
  color: var(--hx-orange);
}

.page-about .ab-crumbs__sep {
  color: var(--hx-line);
}

.page-about .ab-tag {
  display: inline-block;
  margin: 0 0 18px;
  padding: 6px 14px;
  border-radius: var(--hx-r-pill);
  border: 1px solid var(--hx-orange);
  color: var(--hx-orange);
  font-family: var(--hx-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  line-height: 1.4;
}

.page-about .ab-hero__title {
  max-width: 15ch;
  margin: 0 0 20px;
  font-size: clamp(34px, 7.2vw, 76px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--hx-white);
}

.page-about .ab-hero__lede {
  max-width: 54ch;
  margin: 0 0 28px;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--hx-cool-2);
}

.page-about .ab-hero__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--hx-line);
  max-width: 620px;
}

.page-about .ab-hero__meta-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  color: var(--hx-cool-2);
}

.page-about .ab-hero__num {
  font-family: var(--hx-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--hx-mint);
  min-width: 62px;
}

/* ---------- 布局 ---------- */
.page-about .ab-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-top: clamp(20px, 4vw, 44px);
}

.page-about .ab-rail {
  display: none;
}

.page-about .ab-body {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-about .ab-sec {
  padding: clamp(36px, 6vw, 72px) 0;
  border-top: 1px solid var(--hx-line);
}

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

.page-about .ab-sec__head {
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-about .ab-eyebrow {
  margin: 0 0 10px;
  font-family: var(--hx-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--hx-amber);
}

.page-about .ab-h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--hx-white);
  max-width: 22ch;
}

.page-about .ab-h3 {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--hx-white);
}

.page-about .ab-lede {
  max-width: 58ch;
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.78;
  color: var(--hx-cool-2);
  margin: 0 0 14px;
}

.page-about .ab-sec p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--hx-cool-2);
  max-width: 60ch;
}

/* 酒红分区 */
.page-about .ab-sec--wine {
  background: var(--hx-wine);
  border-radius: var(--hx-r-lg);
  padding: clamp(28px, 5vw, 52px) clamp(20px, 4vw, 44px);
  border-top: 0;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .ab-sec--wine .ab-h2,
.page-about .ab-sec--wine .ab-h3 {
  color: var(--hx-white);
}

.page-about .ab-sec--wine p,
.page-about .ab-sec--wine .ab-lede {
  color: #F2DCE3;
}

.page-about .ab-sec--wine .ab-eyebrow {
  color: var(--hx-amber);
}

/* 深蓝绿分区 */
.page-about .ab-sec--teal {
  background: var(--hx-teal);
  border-radius: var(--hx-r-lg);
  padding: clamp(28px, 5vw, 52px) clamp(20px, 4vw, 44px);
  border-top: 0;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-about .ab-sec--teal .ab-lede,
.page-about .ab-sec--teal p {
  color: #CFE3E1;
}

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

.page-about .ab-note {
  margin-top: 22px;
  padding: 16px 18px;
  border-left: 3px solid var(--hx-orange);
  border-radius: 0 var(--hx-r) var(--hx-r) 0;
  background: rgba(17, 18, 20, 0.28);
}

.page-about .ab-note__k {
  margin: 0 0 6px;
  font-family: var(--hx-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--hx-orange);
}

.page-about .ab-note__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: #F2DCE3;
}

/* ---------- 图片 ---------- */
.page-about .ab-figure {
  margin: 0;
}

.page-about .ab-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--hx-r-lg);
  object-fit: cover;
  border: 1px solid rgba(232, 233, 236, 0.12);
}

.page-about .ab-figure__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--hx-mid);
}

.page-about .ab-sec--teal .ab-figure__cap {
  color: #9FC4C0;
}

.page-about .ab-figure--wide {
  margin-top: clamp(20px, 4vw, 34px);
}

/* ---------- 时间轴 ---------- */
.page-about .ab-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .ab-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--hx-line);
}

.page-about .ab-tl {
  position: relative;
  padding: 0 0 clamp(22px, 3.4vw, 32px) 34px;
}

.page-about .ab-tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--hx-teal);
  border: 2px solid var(--hx-orange);
}

.page-about .ab-tl--now::before {
  background: var(--hx-mint);
  border-color: var(--hx-mint);
  box-shadow: 0 0 0 4px rgba(43, 230, 168, 0.18);
}

.page-about .ab-tl__no {
  margin: 0 0 4px;
  font-family: var(--hx-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--hx-amber);
}

.page-about .ab-tl__title {
  margin: 0 0 6px;
  font-size: 19px;
  line-height: 1.34;
  font-weight: 700;
  color: var(--hx-white);
}

.page-about .ab-tl__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: #CFE3E1;
  max-width: 58ch;
}

/* ---------- 团队 ---------- */
.page-about .ab-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 36px);
  align-items: start;
}

.page-about .ab-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .ab-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--hx-cool-2);
}

.page-about .ab-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--hx-orange);
}

.page-about .ab-list strong {
  color: var(--hx-white);
  font-weight: 700;
}

/* ---------- 合作 ---------- */
.page-about .ab-partners__text {
  max-width: 62ch;
  margin: 0 0 8px;
}

.page-about .ab-partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .ab-partner {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 0;
  border-top: 1px solid rgba(232, 233, 236, 0.16);
}

.page-about .ab-partner__no {
  font-family: var(--hx-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--hx-mint);
  padding-top: 4px;
}

.page-about .ab-partner__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--hx-white);
}

.page-about .ab-partner__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: #CFE3E1;
  max-width: 54ch;
}

/* ---------- 标准与数字 ---------- */
.page-about .ab-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(17, 18, 20, 0.45);
  border-radius: var(--hx-r);
  overflow: hidden;
  margin: 0 0 clamp(20px, 3.4vw, 30px);
}

.page-about .ab-stat {
  background: rgba(17, 18, 20, 0.55);
  padding: 18px 16px;
}

.page-about .ab-stat__num {
  margin: 0 0 6px;
  font-family: var(--hx-mono);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--hx-white);
}

.page-about .ab-stat__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #E7C3CE;
}

.page-about .ab-honor {
  margin: 0 0 12px;
  padding-left: 18px;
  border-left: 2px solid var(--hx-amber);
  font-size: 15px;
  line-height: 1.76;
  color: #F2DCE3;
  max-width: 60ch;
}

.page-about .ab-inline-link {
  margin: 0;
  font-size: 14px;
  color: #F2DCE3;
}

.page-about .ab-inline-link a {
  color: var(--hx-white);
  text-decoration: underline;
  text-decoration-color: var(--hx-orange);
  text-underline-offset: 4px;
}

/* ---------- 下一阶段 ---------- */
.page-about .ab-next {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .ab-next__item {
  position: relative;
  padding: 20px 18px 20px 22px;
  background: var(--hx-ink-2);
  border-radius: var(--hx-r);
  border-left: 3px solid var(--hx-teal);
}

.page-about .ab-next__no {
  margin: 0 0 8px;
  font-family: var(--hx-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--hx-orange);
}

.page-about .ab-next__item p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--hx-cool-2);
}

/* ---------- CTA ---------- */
.page-about .ab-cta {
  background: var(--hx-orange);
  color: var(--hx-ink);
  border-radius: var(--hx-r-lg);
  padding: clamp(24px, 4.5vw, 44px);
}

.page-about .ab-cta__title {
  margin: 0 0 18px;
  font-size: clamp(22px, 3.8vw, 34px);
  line-height: 1.2;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--hx-ink);
}

.page-about .ab-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .ab-btn {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border-radius: var(--hx-r-pill);
  border: 1px solid var(--hx-ink);
  background: var(--hx-ink);
  color: var(--hx-white);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s var(--hx-ease), color 0.2s var(--hx-ease);
}

.page-about .ab-btn:hover {
  background: var(--hx-white);
  color: var(--hx-ink);
}

.page-about .ab-btn--line {
  background: transparent;
  color: var(--hx-ink);
  border-color: rgba(17, 18, 20, 0.42);
}

.page-about .ab-btn--line:hover {
  background: var(--hx-ink);
  color: var(--hx-white);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .ab-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .ab-hero__meta-item {
    flex-direction: column;
    gap: 4px;
  }

  .page-about .ab-hero__num {
    min-width: 0;
  }

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

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

@media (min-width: 860px) {
  .page-about .ab-origin {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .ab-figure--offset {
    margin-top: clamp(20px, 6vw, 78px);
  }

  .page-about .ab-team {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .ab-partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }

  .page-about .ab-partner {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .page-about .ab-partner__no {
    padding-top: 0;
    margin-bottom: 8px;
  }
}

@media (min-width: 960px) {
  .page-about .ab-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-about .ab-rail {
    display: block;
    position: sticky;
    top: 104px;
    align-self: start;
    padding-bottom: 20px;
  }

  .page-about .ab-rail__title {
    margin: 0 0 14px;
    font-family: var(--hx-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--hx-mid);
  }

  .page-about .ab-rail__list {
    margin: 0;
    padding: 0;
    list-style: none;
    border-left: 1px solid var(--hx-line);
  }

  .page-about .ab-rail__link {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 0 10px 14px;
    margin-left: -1px;
    border-left: 2px solid transparent;
    font-size: 13px;
    color: var(--hx-cool-2);
    text-decoration: none;
    transition: color 0.2s var(--hx-ease), border-color 0.2s var(--hx-ease);
  }

  .page-about .ab-rail__link:hover,
  .page-about .ab-rail__link:focus-visible {
    color: var(--hx-white);
    border-left-color: var(--hx-orange);
    outline: none;
  }

  .page-about .ab-rail__no {
    font-family: var(--hx-mono);
    font-size: 11px;
    color: var(--hx-orange);
  }

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

@media (min-width: 1100px) {
  .page-about .ab-hero__title {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-btn,
  .page-about .ab-rail__link {
    transition: none;
  }
}