.page-about {
  background: var(--night);
  color: var(--white);
  font-family: var(--body);
  overflow-x: clip;
}

.page-about p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 1.15em;
  color: rgba(247, 250, 248, 0.8);
}

.page-about .figure {
  margin: 0;
  border: var(--hair) solid var(--line);
  overflow: hidden;
  background: var(--tactic);
}

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

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 26px 0 0;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(14, 46, 70, 0.9) 0%, rgba(7, 27, 44, 0) 62%),
    var(--night);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -26%;
  width: 68%;
  height: 118%;
  background: linear-gradient(155deg, rgba(14, 46, 70, 0.9), rgba(14, 46, 70, 0));
  transform: skewX(-6deg);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(39, 71, 94, 0.45) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39, 71, 94, 0.45) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0) 72%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0) 72%);
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .about-crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--mint);
}

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

.page-about .about-crumbs [aria-current="page"] {
  color: var(--mint);
}

.page-about .about-hero__eyebrow {
  margin: 26px 0 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-about .about-hero__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.05rem, 7vw, 4.6rem);
  line-height: 1.03;
  letter-spacing: -0.015em;
  margin: 14px 0 18px;
  max-width: 15em;
  color: var(--white);
}

.page-about .about-hero__lede {
  max-width: 44em;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: rgba(247, 250, 248, 0.82);
}

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__facts li {
  position: relative;
  padding-left: 15px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--white);
}

.page-about .about-hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--mint);
  transform: rotate(45deg);
}

/* 章节索引 */
.page-about .about-directory {
  margin: 34px 0 30px;
  padding-top: 16px;
  border-top: var(--hair) solid var(--line);
}

.page-about .about-directory__label {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-about .about-directory__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .about-directory__link {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  align-items: baseline;
  gap: 2px 6px;
  padding: 11px 10px 11px 0;
  border-bottom: var(--hair) solid rgba(39, 71, 94, 0.85);
  text-decoration: none;
  color: var(--white);
  transition: background-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-about .about-directory__idx {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-about .about-directory__name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.01em;
}

.page-about .about-directory__desc {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-directory__link:hover,
.page-about .about-directory__link:focus-visible {
  background: rgba(53, 242, 192, 0.08);
  padding-left: 10px;
}

.page-about .about-hero__media {
  margin-top: 8px;
}

.page-about .about-hero__figure {
  box-shadow: 0 20px 44px -32px rgba(0, 0, 0, 0.95);
}

/* ============ 通用章节 ============ */
.page-about .about-sec {
  position: relative;
  padding: 50px 0;
  border-top: var(--hair) solid var(--line);
}

.page-about .about-sec--tactic {
  background: linear-gradient(180deg, var(--tactic) 0%, rgba(14, 46, 70, 0.55) 100%);
}

.page-about .about-sec__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-about .about-sec__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .about-sec__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-about .about-sec__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.6vw, 2.55rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 22em;
  color: var(--white);
}

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

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

.page-about .about-sec__side {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

/* 旁注 */
.page-about .about-note {
  border: var(--hair) solid var(--line);
  border-left: 2px solid var(--mint);
  background: rgba(7, 27, 44, 0.62);
}

.page-about .about-note summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

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

.page-about .about-note summary::after {
  content: "+";
  margin-left: auto;
  font-size: 15px;
  line-height: 1;
  color: var(--mist);
}

.page-about .about-note[open] summary::after {
  content: "–";
}

.page-about .about-note summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-about .about-note__body {
  padding: 0 16px 16px;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(247, 250, 248, 0.76);
}

/* 数据带 */
.page-about .about-band {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--hair);
  background: var(--line);
  border: var(--hair) solid var(--line);
}

.page-about .about-band__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  background: var(--night);
}

.page-about .about-band__num {
  font-family: var(--display);
  font-weight: 800;
  font-size: 2.15rem;
  line-height: 1;
  color: var(--mint);
}

.page-about .about-band__cap {
  font-size: 14px;
  line-height: 1.5;
  color: var(--white);
}

.page-about .about-band__meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  color: var(--mist);
}

/* 家庭成员 */
.page-about .about-members {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-about .about-members__item {
  border: var(--hair) solid var(--line);
  border-bottom: 2px solid var(--yellow);
  background: rgba(14, 46, 70, 0.5);
  padding: 14px 16px 16px;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-about .about-members__item:hover {
  border-color: var(--mint);
  background: rgba(53, 242, 192, 0.07);
}

.page-about .about-members__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--yellow);
}

.page-about .about-members__item p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(247, 250, 248, 0.78);
}

/* ============ 发展历程（暖纸区） ============ */
.page-about .about-era {
  position: relative;
  padding: 54px 0 60px;
  border-top: var(--hair) solid var(--line);
  background-color: var(--paper);
  background-image: repeating-radial-gradient(
    circle at 6% 96%,
    transparent 0 34px,
    rgba(16, 23, 28, 0.055) 34px 35px
  );
  color: var(--ink);
}

.page-about .about-era .about-sec__num {
  color: var(--red);
}

.page-about .about-era .about-sec__title {
  color: var(--ink);
}

.page-about .about-era__lede {
  max-width: 40em;
  margin: 4px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(16, 23, 28, 0.76);
}

.page-about .about-timeline {
  margin-top: 30px;
}

.page-about .about-timeline__axis {
  display: none;
  width: 100%;
  height: auto;
  color: var(--red);
}

.page-about .about-timeline__axis line {
  stroke: var(--line);
  stroke-width: 1;
  opacity: 0.55;
}

.page-about .about-timeline__axis circle {
  fill: currentColor;
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 0 18px;
  border-left: 2px solid rgba(16, 23, 28, 0.16);
}

.page-about .about-timeline__year {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--red);
}

.page-about .about-timeline__item h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  margin: 6px 0 6px;
  color: var(--ink);
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(16, 23, 28, 0.74);
}

/* ============ 团队校验 ============ */
.page-about .about-check {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .about-check li {
  padding: 16px 18px 18px;
  border-top: 2px solid var(--mint);
  background: rgba(14, 46, 70, 0.55);
}

.page-about .about-check__no {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mint);
}

.page-about .about-check li h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: 19px;
  margin: 8px 0 6px;
  color: var(--white);
}

.page-about .about-check li p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(247, 250, 248, 0.76);
}

/* ============ 服务信息 ============ */
.page-about .about-support {
  border: var(--hair) solid var(--line);
  border-left: 2px solid var(--yellow);
  background: rgba(7, 27, 44, 0.62);
  padding: 18px 18px 6px;
}

.page-about .about-support__key {
  margin: 0 0 3px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-about .about-support__val {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ============ 收尾 ============ */
.page-about .about-cta {
  padding: 54px 0 64px;
  border-top: var(--hair) solid var(--line);
  background: linear-gradient(120deg, var(--tactic) 0%, var(--night) 72%);
}

.page-about .about-cta__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  color: var(--white);
}

.page-about .about-cta p {
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.8;
  margin: 0 0 24px;
  color: rgba(247, 250, 248, 0.8);
}

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

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-about .about-directory__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

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

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

  .page-about .about-timeline__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 26px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: 34px;
  }

  .page-about .about-sec {
    padding: 64px 0;
  }

  .page-about .about-sec__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: 60px;
    row-gap: 22px;
  }

  .page-about .about-sec__head,
  .page-about .about-sec__wide {
    grid-column: 1 / -1;
  }

  .page-about .about-sec__main {
    grid-column: 1;
  }

  .page-about .about-sec__side {
    grid-column: 2;
  }

  .page-about .about-band {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

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

  .page-about .about-timeline__axis {
    display: block;
    margin-bottom: 4px;
  }

  .page-about .about-timeline__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0;
  }

  .page-about .about-timeline__item {
    padding: 20px 18px 0 0;
    border-left: 0;
  }

  .page-about .about-timeline__item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 1px;
    height: 14px;
    background: rgba(16, 23, 28, 0.22);
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__title {
    max-width: 13em;
  }

  .page-about .about-sec__grid {
    column-gap: 76px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-directory__link,
  .page-about .about-members__item {
    transition: none;
  }
}

<<<END>>>