.page-about {
  background: var(--ink);
  color: var(--white);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
  overflow-x: clip;
}

.page-about .breadcrumb {
  padding: 1.1rem 0 0;
  font-size: 0.78rem;
  color: var(--gray);
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--steel);
}

.page-about .breadcrumb a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

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

.page-about p a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  padding: 1.5rem 0 0;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(0, 229, 255, 0.14), transparent 60%),
    radial-gradient(90% 80% at 0% 8%, rgba(200, 16, 46, 0.2), transparent 62%);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 1.6rem;
  padding-top: 1rem;
}

.page-about .about-hero__scale {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
  margin: 0;
  padding: 0.65rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-about .about-hero__scale li {
  position: relative;
  padding-left: 0.85rem;
}

.page-about .about-hero__scale li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--red);
}

.page-about .about-hero h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(1.9rem, 6.6vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.012em;
  font-weight: 900;
}

.page-about .about-hero h1 span {
  color: var(--red);
}

.page-about .about-hero__lede {
  margin: 1rem 0 0;
  max-width: 33em;
  color: var(--gray);
  font-size: clamp(0.98rem, 2.4vw, 1.06rem);
  line-height: 1.78;
}

.page-about .about-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__media {
  margin: 0;
  position: relative;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 4px;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
  filter: contrast(1.05) saturate(0.95);
}

/* 数据条 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 1.8rem 0 0;
  padding: 1px;
  background: var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-stats__cell {
  margin: 0;
  padding: 1rem 1.05rem;
  background: var(--char);
}

.page-about .about-stats__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-about .about-stats__num {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3.4vw, 1.75rem);
  line-height: 1.1;
  color: var(--white);
}

.page-about .about-stats__num span {
  color: var(--cyan);
}

.page-about .about-stats__num small {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.6;
  color: var(--gray);
}

/* 区块公共 */
.page-about .about-block {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0 0;
}

.page-about .about-head {
  display: grid;
  gap: 0.55rem;
  max-width: 58rem;
}

.page-about .about-head h2,
.page-about .about-roadmap__intro h2,
.page-about .about-contact__intro h2 {
  margin: 0;
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-about .about-head__note {
  margin: 0.2rem 0 0;
  max-width: 36em;
  color: var(--gray);
  font-size: 0.98rem;
  line-height: 1.78;
}

/* 三条业务线 */
.page-about .about-lines__grid {
  display: grid;
  gap: 1.1rem;
  margin-top: 1.6rem;
}

.page-about .about-line {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.35rem 1.2rem 1.4rem;
  background: linear-gradient(160deg, rgba(23, 27, 33, 0.96), rgba(11, 13, 16, 0.96));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-about .about-line::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 52px;
  height: 52px;
  border-right: 1px solid rgba(0, 229, 255, 0.45);
  border-bottom: 1px solid rgba(0, 229, 255, 0.45);
  border-bottom-right-radius: var(--radius);
  pointer-events: none;
}

.page-about .about-line__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--red);
}

.page-about .about-line h3 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.32;
}

.page-about .about-line__text {
  margin: 0;
  color: var(--gray);
  font-size: 0.94rem;
  line-height: 1.78;
}

.page-about .about-line__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 0.6rem;
}

.page-about .about-line__link {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.5);
  padding-bottom: 1px;
}

.page-about .about-line__link:hover,
.page-about .about-line__link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* 赛季路线 */
.page-about .about-roadmap__grid {
  display: grid;
  gap: 1.8rem;
  margin-top: 0;
}

.page-about .about-roadmap__lede {
  margin: 0.85rem 0 0;
  max-width: 34em;
  color: var(--gray);
  font-size: 0.98rem;
  line-height: 1.78;
}

.page-about .about-roadmap__figure {
  margin: 1.3rem 0 0;
}

.page-about .about-roadmap__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

.page-about .about-roadmap__list {
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-node {
  position: relative;
  padding-left: 1.15rem;
  border-left: 1px solid rgba(200, 16, 46, 0.55);
}

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0.85rem;
  width: 11px;
  height: 11px;
  background: var(--red);
  transform: rotate(45deg);
}

.page-about .about-node summary {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  padding: 0.4rem 0;
  cursor: pointer;
  list-style: none;
}

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

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

.page-about .about-node__season {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .about-node__title {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.4;
}

.page-about .about-node summary::after {
  content: "";
  flex: 0 0 auto;
  margin-left: auto;
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s var(--ease);
}

.page-about .about-node details[open] summary::after {
  transform: rotate(225deg) translateY(-2px);
}

.page-about .about-node__body {
  margin: 0.15rem 0 0.75rem;
  max-width: 34em;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.78;
}

/* 团队 */
.page-about .about-team__layout {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.6rem;
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

.page-about .about-team__caption {
  margin: 0.7rem 0 0;
  color: var(--steel);
  font-size: 0.82rem;
  line-height: 1.72;
}

.page-about .about-team__grid {
  display: grid;
  gap: 0.9rem;
}

.page-about .about-team__card {
  padding: 1.1rem 1.05rem 1.15rem;
  background: var(--paper);
  color: var(--char);
  border-radius: 4px;
  border-top: 4px solid var(--red);
  box-shadow: 5px 5px 0 -1px rgba(0, 0, 0, 0.55);
}

.page-about .about-team__card:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-about .about-team__card:nth-child(3) {
  border-top-color: var(--orange);
}

.page-about .about-team__card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-team__count {
  display: block;
  margin: 0.3rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-about .about-team__card p {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--char);
}

/* 合作生态与服务包 */
.page-about .about-eco__band {
  display: flex;
  gap: 0.55rem;
  margin: 1.5rem 0 0;
  padding: 0.85rem 0.15rem;
  list-style: none;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-about .about-eco__band .tag {
  flex: 0 0 auto;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.page-about .about-packs {
  display: grid;
  gap: 1rem;
  margin-top: 1.6rem;
}

.page-about .about-pack {
  position: relative;
  padding: 1.25rem 1.15rem;
  background: rgba(23, 27, 33, 0.62);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-about .about-pack::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 1.25rem;
  width: 3px;
  height: 2.2rem;
  background: linear-gradient(var(--cyan), var(--orange));
}

.page-about .about-pack h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-pack__fit {
  margin: 0.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .about-pack p:last-child {
  margin: 0.55rem 0 0;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.78;
}

/* 联络 */
.page-about .about-contact__panel {
  position: relative;
  display: grid;
  gap: 1.5rem;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(0, 59, 70, 0.85), rgba(23, 27, 33, 0.96) 55%, rgba(140, 10, 31, 0.55));
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: var(--radius);
}

.page-about .about-contact__panel::after {
  content: "";
  position: absolute;
  right: -45px;
  top: -45px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(255, 106, 0, 0.35);
  transform: rotate(45deg);
  pointer-events: none;
}

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

.page-about .about-contact__intro > p:not(.kicker) {
  margin: 0.85rem 0 0;
  max-width: 32em;
  color: var(--gray);
  font-size: 0.96rem;
  line-height: 1.78;
}

.page-about .about-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.page-about .about-contact__list {
  position: relative;
  z-index: 1;
  margin: 0;
  display: grid;
  gap: 0.2rem;
}

.page-about .about-contact__row {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  gap: 0.7rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(201, 210, 220, 0.16);
}

.page-about .about-contact__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--steel);
}

.page-about .about-contact__val {
  margin: 0;
  color: var(--white);
  font-size: 0.94rem;
  line-height: 1.6;
  word-break: break-word;
}

@media (min-width: 620px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-lines__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }

  .page-about .about-packs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.1rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-roadmap__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 2.6rem;
    align-items: start;
  }

  .page-about .about-contact__panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 2.2rem;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-hero {
    padding-top: 2rem;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 74px minmax(0, 1fr) minmax(0, 0.85fr);
    column-gap: 2.2rem;
    row-gap: 1.5rem;
    align-items: start;
  }

  .page-about .about-hero__scale {
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-start;
    gap: 1.15rem;
    margin-top: 0.4rem;
    padding: 0.15rem 0 0 0.9rem;
    border-top: 0;
    border-left: 1px solid var(--line-strong);
  }

  .page-about .about-hero__lede {
    margin-top: 1.2rem;
  }
}

@media (min-width: 1040px) {
  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.32fr);
    gap: 2.4rem;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-node summary::after,
  .page-about .breadcrumb a {
    transition: none;
  }
}
<<<END>>>