.page-about {
  --about-rail: 150px;
  --about-flow-line: rgba(232, 237, 245, .10);
  color: var(--eo-paper);
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: 28px;
  padding-bottom: 4px;
}
.page-about .about-crumb .eo-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  color: var(--eo-grey);
}
.page-about .about-crumb .eo-breadcrumb__item + .eo-breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--eo-line-14);
}
.page-about .about-crumb .eo-breadcrumb__link {
  color: var(--eo-blue-soft);
  text-decoration: none;
}
.page-about .about-crumb .eo-breadcrumb__link:hover {
  color: var(--eo-paper);
}
.page-about .about-crumb .eo-breadcrumb__current {
  color: var(--eo-paper);
}

/* ---------- 首段 ---------- */
.page-about .about-intro {
  padding-top: 20px;
}
.page-about .about-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}
.page-about .about-intro__title {
  margin: 14px 0 18px;
  font-size: clamp(30px, 7vw, 52px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -.01em;
}
.page-about .about-intro__text .eo-lede {
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--eo-blue-soft);
  margin: 0;
}
.page-about .about-intro__stickers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.page-about .about-intro__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  overflow: hidden;
  background: var(--eo-panel);
  box-shadow: 8px 8px 0 rgba(232, 237, 245, .06);
}
.page-about .about-intro__media .eo-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: .92;
}
.page-about .about-intro__media .eo-media__caption {
  display: block;
  padding: 12px 16px;
  border-top: 1px solid var(--eo-line-08);
  font-size: 12px;
  color: var(--eo-grey);
}

/* ---------- 章节索引 ---------- */
.page-about .about-index {
  margin-top: 40px;
  padding: 14px 0;
  border-top: 1px solid var(--eo-line-08);
  border-bottom: 1px solid var(--eo-line-08);
}
.page-about .about-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
  color: var(--eo-paper);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .2s var(--eo-ease), background .2s var(--eo-ease), transform .2s var(--eo-ease);
}
.page-about .about-index__link .eo-mono {
  font-size: 11px;
  color: var(--eo-blue);
}
.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  border-color: var(--eo-blue-45);
  background: var(--eo-blue-14);
  transform: translateY(-1px);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  position: relative;
  scroll-margin-top: 110px;
}
.page-about .about-chapter__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-about .about-chapter__aside {
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-about .about-chapter__num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--eo-blue);
  letter-spacing: .04em;
}
.page-about .about-chapter__vert {
  font-size: 11px;
  letter-spacing: .34em;
  color: var(--eo-blue-soft);
  writing-mode: horizontal-tb;
}
.page-about .about-chapter__title {
  margin: 0 0 18px;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.22;
  font-weight: 900;
  letter-spacing: -.01em;
}
.page-about .about-chapter__p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(242, 245, 250, .82);
  max-width: 68ch;
}
.page-about .about-chapter__p--tail {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--eo-blue-45);
  font-size: 14px;
  color: var(--eo-blue-soft);
}

/* ---------- 服务人群 ---------- */
.page-about .about-audience {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--eo-line-08);
  border: 1px solid var(--eo-line-08);
  border-radius: var(--eo-radius);
  overflow: hidden;
}
.page-about .about-audience__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--eo-panel);
}
.page-about .about-audience__who {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--eo-paper);
}
.page-about .about-audience__why {
  font-size: 13px;
  line-height: 1.7;
  color: var(--eo-grey);
}

/* ---------- 发展时间轴 ---------- */
.page-about .about-tl-wrap {
  margin-top: 28px;
}
.page-about .about-tl {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}
.page-about .about-tl__item {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--eo-line-08);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
  overflow: hidden;
  transition: border-color .22s var(--eo-ease), background .22s var(--eo-ease);
}
.page-about .about-tl__item:hover {
  border-color: var(--eo-blue-45);
}
.page-about .about-tl__node {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.page-about .about-tl__node:focus-visible {
  outline: 2px solid var(--eo-blue);
  outline-offset: -2px;
}
.page-about .about-tl__dot {
  flex: none;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--eo-grey);
  box-shadow: 0 0 0 3px rgba(107, 122, 144, .16);
  transition: background .22s var(--eo-ease), box-shadow .22s var(--eo-ease);
}
.page-about .about-tl__node[aria-expanded="true"] .about-tl__dot {
  background: var(--eo-green);
  box-shadow: 0 0 0 3px var(--eo-green-12), 0 0 10px rgba(56, 245, 168, .5);
}
.page-about .about-tl__era {
  flex: none;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--eo-blue-soft);
}
.page-about .about-tl__name {
  flex: 1 1 auto;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--eo-paper);
}
.page-about .about-tl__node[aria-expanded="true"] .about-tl__name {
  color: var(--eo-green);
}
.page-about .about-tl__panel {
  border-top: 1px dashed var(--eo-line-14);
  background: var(--eo-panel-2);
}
.page-about .about-tl__panel .eo-accordion__body {
  padding: 14px 16px 18px;
}
.page-about .about-tl__panel .eo-accordion__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(242, 245, 250, .78);
}

/* ---------- 团队色带 ---------- */
.page-about .about-team {
  margin-top: 26px;
}
.page-about .about-team__bands {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-about .about-team__band {
  position: relative;
  flex-grow: 1;
  flex-basis: 0;
  min-width: 118px;
  padding: 18px 16px;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
  display: flex;
  flex-direction: column;
  cursor: default;
  transition: border-color .22s var(--eo-ease), transform .22s var(--eo-ease);
}
.page-about .about-team__band:focus-visible {
  outline: 2px solid var(--eo-blue);
  outline-offset: 2px;
}
.page-about .about-team__band--ops {
  flex-grow: 62;
  border-top: 3px solid var(--eo-blue);
}
.page-about .about-team__band--edit {
  flex-grow: 18;
  border-top: 3px solid var(--eo-green);
}
.page-about .about-team__band--tech {
  flex-grow: 15;
  border-top: 3px solid var(--eo-orange);
}
.page-about .about-team__band:hover,
.page-about .about-team__band:focus-within {
  border-color: var(--eo-blue-45);
  transform: translateY(-2px);
}
.page-about .about-team__num {
  font-size: clamp(34px, 8vw, 54px);
  line-height: 1;
  font-weight: 700;
  color: var(--eo-paper);
}
.page-about .about-team__band--edit .about-team__num {
  color: var(--eo-green);
}
.page-about .about-team__band--tech .about-team__num {
  color: var(--eo-orange);
}
.page-about .about-team__role {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--eo-paper);
}
.page-about .about-team__tip {
  max-height: 0;
  overflow: hidden;
  margin-top: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--eo-blue-soft);
  transition: max-height .24s var(--eo-ease), margin-top .24s var(--eo-ease);
}
.page-about .about-team__band:hover .about-team__tip,
.page-about .about-team__band:focus-within .about-team__tip {
  max-height: 160px;
  margin-top: 12px;
}
.page-about .about-team__total {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--eo-grey);
}
.page-about .about-team__total .eo-mono {
  font-size: 20px;
  font-weight: 700;
  color: var(--eo-green);
  margin-right: 4px;
}
.page-about .about-team__media {
  margin: 26px 0 0;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  overflow: hidden;
  background: var(--eo-panel);
}
.page-about .about-team__media .eo-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: .88;
}
.page-about .about-team__media .eo-media__caption {
  display: block;
  padding: 11px 16px;
  border-top: 1px solid var(--eo-line-08);
  font-size: 12px;
  color: var(--eo-grey);
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-coverage {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.page-about .about-coverage__cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
}
.page-about .about-coverage__cell--big {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(15, 43, 107, .55) 0%, rgba(47, 107, 255, .22) 55%, rgba(56, 245, 168, .10) 100%);
  border-color: var(--eo-blue-45);
}
.page-about .about-coverage__num {
  font-size: clamp(32px, 7vw, 52px);
  line-height: 1;
  font-weight: 700;
  color: var(--eo-paper);
  letter-spacing: -.01em;
}
.page-about .about-coverage__cell--big .about-coverage__num {
  font-size: clamp(48px, 12vw, 86px);
}
.page-about .about-coverage__label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--eo-paper);
}
.page-about .about-coverage__note {
  font-size: 12px;
  line-height: 1.7;
  color: var(--eo-blue-soft);
}
.page-about .about-coverage__extra {
  margin-top: 24px;
  padding: 20px;
  border-left: 2px solid var(--eo-green);
  background: var(--eo-green-12);
  border-radius: 0 var(--eo-radius) var(--eo-radius) 0;
}
.page-about .about-coverage__extra-title {
  margin: 0 0 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--eo-green);
}
.page-about .about-coverage__list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(242, 245, 250, .82);
}

/* ---------- 呈现流程 ---------- */
.page-about .about-flow {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  counter-reset: flow;
}
.page-about .about-flow__step {
  position: relative;
  padding: 18px 18px 18px 22px;
  border: 1px solid var(--eo-line-14);
  border-left: 3px solid var(--eo-blue);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
}
.page-about .about-flow__idx {
  display: block;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--eo-blue);
  margin-bottom: 6px;
}
.page-about .about-flow__name {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 900;
  color: var(--eo-paper);
}
.page-about .about-flow__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(242, 245, 250, .78);
}
.page-about .about-rhythm {
  margin-top: 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--eo-line-08);
  border: 1px solid var(--eo-line-08);
  border-radius: var(--eo-radius);
  overflow: hidden;
}
.page-about .about-rhythm__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 18px;
  background: var(--eo-panel-2);
}
.page-about .about-rhythm__key {
  font-size: 13px;
  font-weight: 700;
  color: var(--eo-orange);
  min-width: 88px;
}
.page-about .about-rhythm__val {
  font-size: 13.5px;
  color: var(--eo-paper);
}

/* ---------- 合规与联络 ---------- */
.page-about .about-chapter--compliance {
  position: relative;
  overflow: hidden;
}
.page-about .about-chapter--compliance::before {
  content: "";
  position: absolute;
  inset: -12% -6%;
  pointer-events: none;
  opacity: .55;
  background:
    repeating-radial-gradient(ellipse 62% 46% at 24% 34%, transparent 0 22px, rgba(127, 168, 255, .08) 22px 23px),
    repeating-radial-gradient(ellipse 48% 58% at 80% 72%, transparent 0 28px, rgba(47, 107, 255, .06) 28px 29px);
}
.page-about .about-chapter--compliance .about-chapter__inner {
  position: relative;
  z-index: 1;
}
.page-about .about-compliance__grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-about .about-compliance__list {
  margin: 0;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  background: var(--eo-panel);
  overflow: hidden;
}
.page-about .about-compliance__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--eo-line-08);
}
.page-about .about-compliance__row:last-child {
  border-bottom: 0;
}
.page-about .about-compliance__key {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--eo-grey);
}
.page-about .about-compliance__val {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--eo-paper);
  word-break: break-word;
}
.page-about .about-compliance__figure {
  margin: 0;
  border: 1px solid var(--eo-line-14);
  border-radius: var(--eo-radius);
  overflow: hidden;
  background: var(--eo-panel);
}
.page-about .about-compliance__figure .eo-media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: .7;
}
.page-about .about-compliance__figure .eo-media__caption {
  display: block;
  padding: 11px 16px;
  border-top: 1px solid var(--eo-line-08);
  font-size: 12px;
  color: var(--eo-grey);
}

/* ---------- 结尾引导 ---------- */
.page-about .about-cta {
  padding-bottom: 72px;
}
.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 30px 24px;
  border: 1px solid var(--eo-blue-45);
  border-radius: var(--eo-radius);
  background: linear-gradient(120deg, rgba(15, 43, 107, .5) 0%, rgba(47, 107, 255, .16) 60%, rgba(56, 245, 168, .08) 100%);
}
.page-about .about-cta__title {
  margin: 10px 0 12px;
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 900;
  line-height: 1.25;
}
.page-about .about-cta__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 245, 250, .82);
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: center;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-about .about-audience {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-rhythm {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-rhythm__item {
    flex-direction: column;
    gap: 6px;
  }
  .page-about .about-compliance__row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 16px;
  }
  .page-about .about-compliance__key {
    padding-top: 2px;
  }
  .page-about .about-compliance__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about .about-crumb {
    padding-top: 34px;
  }
  .page-about .about-intro {
    padding-top: 28px;
  }
  .page-about .about-intro__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 52px;
  }
  .page-about .about-chapter {
    padding-top: 72px;
    padding-bottom: 72px;
  }
  .page-about .about-chapter__inner {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: 46px;
  }
  .page-about .about-chapter__aside {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    position: sticky;
    top: 128px;
    align-self: start;
  }
  .page-about .about-chapter__num {
    font-size: 38px;
  }
  .page-about .about-chapter__vert {
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: .3em;
    font-size: 12px;
    line-height: 1;
  }
  .page-about .about-audience {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-team__bands {
    gap: 12px;
  }
  .page-about .about-coverage {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-coverage__cell--big {
    grid-column: 1 / -1;
  }
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    padding: 40px 36px;
    align-items: center;
  }
  .page-about .about-cta__actions {
    justify-content: flex-end;
  }

  /* 时间轴：横向刻度 */
  .page-about .about-tl {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    align-items: start;
  }
  .page-about .about-tl::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 27px;
    height: 1px;
    background: linear-gradient(90deg, var(--eo-line-14) 0%, var(--eo-blue-45) 45%, var(--eo-green-12) 100%);
  }
  .page-about .about-tl__item {
    border: 0;
    background: none;
    border-radius: 0;
    padding-right: 10px;
    overflow: visible;
  }
  .page-about .about-tl__item:hover {
    border-color: transparent;
  }
  .page-about .about-tl__node {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 16px 0 12px;
  }
  .page-about .about-tl__dot {
    width: 13px;
    height: 13px;
    background: var(--eo-void);
    box-shadow: 0 0 0 1px var(--eo-line-14), 0 0 0 5px var(--eo-void);
  }
  .page-about .about-tl__era {
    font-size: 11.5px;
  }
  .page-about .about-tl__name {
    font-size: 14px;
    line-height: 1.5;
  }
  .page-about .about-tl__node .eo-accordion__icon {
    position: static;
  }
  .page-about .about-tl__panel {
    border: 1px solid var(--eo-line-14);
    border-radius: var(--eo-radius);
    background: var(--eo-panel);
    margin-bottom: 8px;
  }
  .page-about .about-tl__panel .eo-accordion__body {
    padding: 12px 14px 16px;
  }
  .page-about .about-tl__panel .eo-accordion__body p {
    font-size: 12.5px;
  }
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 480px) {
  .page-about .about-coverage {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-about .about-team__band {
    flex-grow: 1;
    flex-basis: 100%;
    min-width: 0;
  }
  .page-about .about-team__tip {
    max-height: none;
    margin-top: 10px;
  }
  .page-about .about-cta__actions .eo-btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__link,
  .page-about .about-tl__item,
  .page-about .about-tl__dot,
  .page-about .about-team__band,
  .page-about .about-team__tip {
    transition: none;
  }
  .page-about .about-index__link:hover,
  .page-about .about-team__band:hover {
    transform: none;
  }
}