/* ============ 团队介绍页 · page-about ============ */

.page-about {
  padding-inline: clamp(14px, 3.2vw, 32px);
  padding-bottom: var(--s4);
  background: var(--cream);
  color: var(--cocoa);
  font-family: var(--font-body);
  -webkit-text-size-adjust: 100%;
}

.page-about .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: var(--s2) 0 var(--s3);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--kernel);
}

.page-about .crumbs__link {
  color: var(--kernel);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .crumbs__link:hover,
.page-about .crumbs__link:focus-visible {
  color: var(--cocoa);
  border-bottom-color: var(--orange);
}

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

.page-about .crumbs__item {
  color: var(--cocoa);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  padding: 0 0 var(--s4);
  border-bottom: var(--line);
}

.page-about .about-kicker {
  display: inline-block;
  margin: 0 0 var(--s3);
  padding: 4px 12px;
  background: var(--mist);
  color: var(--purple);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-about .about-h1 {
  margin: 0 0 var(--s3);
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(30px, 7vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-about .about-hero__body {
  display: grid;
  gap: var(--s3);
}

.page-about .about-lede {
  margin: 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--cocoa);
}

.page-about .about-stat {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: var(--line);
  border-left: var(--line);
}

.page-about .about-stat__item {
  padding: var(--s2);
  border-right: var(--line);
  border-bottom: var(--line);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 30px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--purple);
}

.page-about .about-stat__label {
  display: block;
  margin-top: var(--s1);
  font-size: 13px;
  line-height: 1.65;
  color: var(--kernel);
}

/* ---------- 章节骨架 ---------- */

.page-about .about-sec {
  padding: var(--s4) 0;
  border-bottom: var(--line);
}

.page-about .about-sec:last-of-type {
  border-bottom: 0;
  padding-bottom: var(--s3);
}

.page-about .sec-head {
  margin-bottom: var(--s3);
  max-width: 46em;
}

.page-about .sec-num {
  display: inline-block;
  margin-bottom: var(--s2);
  padding: 4px 10px;
  background: var(--purple);
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
}

.page-about .sec-title {
  margin: 0 0 var(--s2);
  font-family: var(--font-display);
  font-size: clamp(23px, 4.2vw, 34px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.page-about .sec-lead {
  margin: 0;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--kernel);
}

/* ---------- 通用媒体块 ---------- */

.page-about .media {
  margin: 0;
}

.page-about .media__frame,
.page-about .media__img {
  max-width: 100%;
}

.page-about .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--mist);
  border: var(--line-deep);
}

.page-about .media__caption {
  margin-top: var(--s1);
  font-size: 13px;
  line-height: 1.7;
  color: var(--kernel);
}

/* ---------- 01 三类角色 ---------- */

.page-about .about-roles {
  display: grid;
  gap: var(--s3);
}

.page-about .about-roles__col {
  display: grid;
  gap: var(--s1);
}

.page-about .about-role {
  display: block;
  padding: var(--s2);
  border-top: var(--line-deep);
  color: inherit;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-role:hover {
  background-color: var(--mist);
  transform: translateY(-2px);
}

.page-about .about-role:focus-visible {
  outline: 2px solid var(--yolk);
  outline-offset: 2px;
  background-color: var(--mist);
}

.page-about .about-role__tag {
  display: inline-block;
  margin-bottom: var(--s1);
  padding: 3px 8px;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-about .about-role__name {
  margin: 0 0 var(--s1);
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-about .about-role__desc {
  margin: 0 0 var(--s2);
  max-width: 34em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--kernel);
}

.page-about .about-role__go {
  display: inline-block;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--purple);
  border-bottom: 2px solid var(--orange);
}

.page-about .about-roles__figure {
  margin: 0;
}

/* ---------- 02 四步流程 ---------- */

.page-about .about-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s3);
}

.page-about .about-flow__step {
  position: relative;
  padding-top: var(--s2);
  border-top: var(--line-deep);
}

.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 34px;
  height: 3px;
  background: var(--orange);
}

.page-about .about-flow__num {
  display: block;
  margin-bottom: var(--s1);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--purple);
}

.page-about .about-flow__title {
  margin: 0 0 var(--s1);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-flow__text {
  margin: 0;
  max-width: 30em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--kernel);
}

.page-about .about-callout {
  margin-top: var(--s3);
  padding: var(--s3);
  background: var(--indigo);
  color: var(--cream);
  border-left: 4px solid var(--yolk);
}

.page-about .about-callout__title {
  margin: 0 0 var(--s1);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .about-callout__text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 248, 239, .84);
}

/* ---------- 03 响应网络 ---------- */

.page-about .about-map {
  margin: 0 0 var(--s3);
}

.page-about .about-route {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--s2);
}

.page-about .about-route__item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: var(--s2);
  padding: var(--s2);
  background: var(--mist);
}

.page-about .about-route__num {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--orange);
}

.page-about .about-route__title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
}

.page-about .about-route__text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--kernel);
}

.page-about .about-sla {
  margin-top: var(--s3);
  display: grid;
  border-top: var(--line-deep);
  border-left: var(--line-deep);
}

.page-about .about-sla__item {
  padding: var(--s2);
  border-right: var(--line-deep);
  border-bottom: var(--line-deep);
}

.page-about .about-sla__k {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--purple);
}

.page-about .about-sla__v {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--kernel);
}

/* ---------- 04 发展阶段时间线 ---------- */

.page-about .about-tl-figure {
  margin: 0 0 var(--s4);
}

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--kernel);
  opacity: .5;
}

.page-about .about-tl__item {
  position: relative;
  padding: 0 0 var(--s3) var(--s3);
  outline: none;
}

.page-about .about-tl__item:last-child {
  padding-bottom: 0;
}

.page-about .about-tl__dot {
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px var(--cream);
}

.page-about .about-tl__phase {
  display: inline-block;
  margin-bottom: 6px;
  padding: 3px 10px;
  background: var(--mist);
  color: var(--purple);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-about .about-tl__line {
  margin: 0;
  max-width: 30em;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
}

.page-about .about-tl__note {
  margin: 0;
  max-width: 34em;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: translateY(-4px);
  font-size: 15px;
  line-height: 1.8;
  color: var(--kernel);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), transform var(--dur) var(--ease), margin-top var(--dur) var(--ease);
}

.page-about .about-tl__item:hover .about-tl__line {
  color: var(--purple);
}

.page-about .about-tl__item:focus .about-tl__note,
.page-about .about-tl__item:focus-within .about-tl__note {
  max-height: 14em;
  opacity: 1;
  transform: none;
  margin-top: 6px;
}

/* ---------- 05 外部伙伴 ---------- */

.page-about .about-partner {
  display: grid;
  gap: var(--s2);
  margin-bottom: var(--s3);
}

.page-about .about-partner__card {
  padding: var(--s3) var(--s2);
  background: var(--mist);
  border-top: 3px solid var(--purple);
}

.page-about .about-partner__title {
  margin: 0 0 var(--s1);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-partner__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--kernel);
}

.page-about .about-partner__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
}

/* ---------- 断点 ---------- */

@media (min-width: 680px) {
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-about .about-sla {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-partner {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s4);
    align-items: start;
  }

  .page-about .about-route {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s3);
  }
}

@media (min-width: 1024px) {
  .page-about .about-roles {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--s4);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--s2);
  }

  .page-about .about-flow__text {
    max-width: none;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .about-tl__item:hover .about-tl__note {
    max-height: 14em;
    opacity: 1;
    transform: none;
    margin-top: 6px;
  }
}

@media (hover: none) {
  .page-about .about-tl__note {
    max-height: 14em;
    opacity: 1;
    transform: none;
    margin-top: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}
<<<END>>>