.page-about {
  --about-body: #34414f;
  --about-body-light: rgba(242, 246, 249, 0.78);
  --about-hairline: rgba(14, 22, 32, 0.14);
  display: block;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ===== 区块节奏 ===== */
.page-about .band {
  padding: 52px 0;
}

.page-about .band--hero {
  background:
    radial-gradient(118% 88% at 86% 4%, rgba(111, 181, 224, 0.24) 0%, rgba(111, 181, 224, 0) 58%),
    linear-gradient(158deg, var(--ink) 0%, var(--slate) 60%, #1a3a58 100%);
  color: var(--mist);
  padding-top: 30px;
  padding-bottom: 56px;
}

.page-about .band--mist {
  background: var(--mist);
}

.page-about .band--paper {
  background: var(--paper);
}

.page-about .band--ink {
  background: var(--ink);
  color: var(--mist);
}

@media (min-width: 900px) {
  .page-about .band {
    padding: 88px 0;
  }
  .page-about .band--hero {
    padding-top: 42px;
    padding-bottom: 92px;
  }
}

/* ===== 面包屑 ===== */
.page-about .band--hero .breadcrumbs {
  color: rgba(242, 246, 249, 0.62);
  font-size: 13px;
}

.page-about .band--hero .breadcrumbs a {
  color: rgba(242, 246, 249, 0.82);
  text-decoration: none;
}

.page-about .band--hero .breadcrumbs a:hover {
  color: var(--amber);
}

/* ===== 首屏 ===== */
.page-about .hero-grid {
  display: grid;
  gap: 32px;
  margin-top: 26px;
}

@media (min-width: 960px) {
  .page-about .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 54px;
    align-items: end;
  }
}

.page-about .band--hero .eyebrow {
  color: var(--aurora);
  letter-spacing: 0.16em;
}

.page-about .hero-title {
  font-size: clamp(1.85rem, 5.6vw, 3.05rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 14px 0 18px;
  color: var(--mist);
}

.page-about .band--hero .lede {
  color: var(--about-body-light);
  font-size: 1.01rem;
  line-height: 1.82;
  max-width: 34em;
  margin: 0;
}

.page-about .hero-meta {
  margin: 18px 0 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--aurora);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .band--hero .btn-outline {
  color: var(--mist);
  border-color: rgba(242, 246, 249, 0.42);
}

.page-about .band--hero .btn-outline:hover {
  color: var(--amber);
  border-color: var(--amber);
}

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

.page-about .hero-media img {
  display: block;
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.78) brightness(0.96);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-about .band--hero .media-caption {
  color: rgba(242, 246, 249, 0.58);
  font-size: 12.5px;
  margin-top: 10px;
}

/* ===== 通用区块标题 ===== */
.page-about .band-head {
  max-width: 46em;
}

.page-about .section-title {
  font-size: clamp(1.42rem, 3.5vw, 2.05rem);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 12px 0 0;
}

.page-about .band--ink .section-title {
  color: var(--mist);
}

.page-about .band--ink .eyebrow {
  color: var(--aurora);
}

.page-about .band-head__lede {
  margin: 14px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--about-body);
  max-width: 34em;
}

/* ===== 时间轴（起点 / 版本演进共用）===== */
.page-about .journey {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-about .journey__item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 30px;
}

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

@media (min-width: 900px) {
  .page-about .journey {
    margin-top: 44px;
  }
  .page-about .journey__item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 30px;
    padding-bottom: 42px;
  }
}

.page-about .journey__rail {
  position: relative;
  display: flex;
  justify-content: center;
}

.page-about .journey__rail::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: -32px;
  left: 50%;
  width: 1px;
  background: var(--aurora);
  opacity: 0.45;
  transform: translateX(-50%);
}

.page-about .journey__item:last-child .journey__rail::before {
  display: none;
}

.page-about .journey__dot {
  position: relative;
  z-index: 2;
  margin-top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(242, 107, 33, 0.16);
  transition: background 0.16s ease, box-shadow 0.16s ease;
}

.page-about .journey__dot--ice {
  background: var(--ice);
  box-shadow: 0 0 0 4px rgba(30, 92, 140, 0.16);
}

.page-about .journey__dot--amber {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(217, 154, 43, 0.18);
}

.page-about .journey__dot--green {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(31, 107, 90, 0.18);
}

.page-about .journey__rail:hover .journey__dot {
  box-shadow: 0 0 0 8px rgba(217, 154, 43, 0.22);
}

.page-about .journey__hint {
  display: none;
}

@media (min-width: 900px) {
  .page-about .journey__hint {
    display: block;
    position: absolute;
    top: -4px;
    left: calc(100% + 10px);
    z-index: 8;
    width: 186px;
    padding: 8px 11px;
    background: var(--ink);
    color: var(--mist);
    font-size: 12.5px;
    line-height: 1.6;
    border-left: 2px solid var(--amber);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.16s ease, visibility 0.16s ease;
  }

  .page-about .journey__rail:hover .journey__hint {
    opacity: 1;
    visibility: visible;
  }
}

.page-about .journey__tag {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ice);
}

.page-about .journey__body h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.42;
  font-weight: 800;
  color: var(--ink);
}

.page-about .journey__body p {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.82;
  color: var(--about-body);
  max-width: 44em;
}

/* ===== 流程 ===== */
.page-about .process-grid {
  display: grid;
  gap: 34px;
  margin-top: 32px;
}

@media (min-width: 900px) {
  .page-about .process-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 54px;
    align-items: start;
  }
}

.page-about .process-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .process-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid var(--about-hairline);
}

.page-about .process-step:last-child {
  border-bottom: 1px solid var(--about-hairline);
}

@media (min-width: 900px) {
  .page-about .process-step {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 18px;
    padding: 24px 0;
  }
}

.page-about .process-step__num {
  padding-top: 3px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-about .process-step h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  line-height: 1.42;
  font-weight: 800;
  color: var(--ink);
}

.page-about .process-step p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--about-body);
}

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

.page-about .process-media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.82);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-about .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--grey);
}

@media (min-width: 900px) {
  .page-about .process-media {
    position: sticky;
    top: 28px;
  }
}

/* ===== 团队面板 ===== */
.page-about .team-grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 22px;
    margin-top: 42px;
  }
  .page-about .team-panel:nth-child(2) {
    margin-top: 28px;
  }
  .page-about .team-panel:nth-child(3) {
    margin-top: 12px;
  }
}

.page-about .team-panel {
  background: #ffffff;
  border-left: 3px solid var(--ice);
  padding: 26px 22px 24px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: border-color 0.16s ease;
}

.page-about .team-panel:hover {
  border-left-color: var(--amber);
}

.page-about .team-panel__tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ice);
  border: 1px solid rgba(30, 92, 140, 0.3);
}

.page-about .team-panel h3 {
  margin: 0 0 10px;
  font-size: 1.06rem;
  line-height: 1.45;
  font-weight: 800;
  color: var(--ink);
}

.page-about .team-panel p:last-child {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--about-body);
}

/* ===== 规模数据带 ===== */
.page-about .band-head--on-ink .section-title {
  margin-top: 12px;
}

.page-about .scale-band {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 32px;
  background: rgba(111, 181, 224, 0.24);
  border: 1px solid rgba(111, 181, 224, 0.24);
}

@media (min-width: 700px) {
  .page-about .scale-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .scale-band {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin-top: 42px;
  }
}

.page-about .scale-item {
  position: relative;
  background: var(--ink);
  padding: 22px 16px 20px;
}

.page-about .scale-item__num {
  display: block;
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-about .scale-item__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: rgba(242, 246, 249, 0.72);
}

.page-about .scale-item__note {
  position: absolute;
  left: 10px;
  right: 10px;
  top: calc(100% - 4px);
  z-index: 9;
  padding: 9px 11px;
  background: var(--slate);
  border: 1px solid rgba(111, 181, 224, 0.4);
  color: rgba(242, 246, 249, 0.86);
  font-size: 12.5px;
  line-height: 1.62;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.16s ease, visibility 0.16s ease;
}

.page-about .scale-item:hover .scale-item__note,
.page-about .scale-item:focus-within .scale-item__note {
  opacity: 1;
  visibility: visible;
}

/* ===== 合作网络 ===== */
.page-about .eco-grid {
  display: grid;
  gap: 30px;
  margin-top: 32px;
}

@media (min-width: 900px) {
  .page-about .eco-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    gap: 48px;
    align-items: start;
    margin-top: 42px;
  }
}

.page-about .eco .tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about .eco .tab-button {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(30, 92, 140, 0.32);
  color: var(--ice);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  padding: 8px 15px;
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-about .eco .tab-button:hover,
.page-about .eco .tab-button[aria-selected="true"],
.page-about .eco .tab-button.is-active {
  background: var(--ice);
  border-color: var(--ice);
  color: var(--mist);
}

.page-about .eco .tab-button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-about .eco .tab-panel {
  background: #ffffff;
  padding: 24px 22px 22px;
  border-left: 3px solid var(--aurora);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-about .eco .tab-panel + .tab-panel {
  margin-top: 14px;
}

.page-about .eco-panel__num {
  display: block;
  margin: 0 0 6px;
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
}

.page-about .eco .tab-panel h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink);
}

.page-about .eco .tab-panel p:last-child {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--about-body);
}

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

.page-about .eco-media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.78);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

/* ===== 认可与收束 ===== */
.page-about .honor-list {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
}

@media (min-width: 760px) {
  .page-about .honor-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
    margin-top: 40px;
  }
}

.page-about .honor-list li {
  border-top: 3px solid var(--amber);
  padding: 18px 2px 0;
  font-size: 0.95rem;
  line-height: 1.78;
  color: var(--about-body);
}

.page-about .honor-list__num {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ice);
}

.page-about .about-cta {
  margin-top: 40px;
  padding: 26px 24px 24px;
  background: var(--ink);
  color: rgba(242, 246, 249, 0.84);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

@media (min-width: 900px) {
  .page-about .about-cta {
    margin-top: 54px;
    padding: 34px 34px 30px;
  }
}

.page-about .about-cta p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.8;
  max-width: 44em;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 20px;
}

.page-about .about-cta .link-arrow {
  color: var(--aurora);
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
}

.page-about .about-cta .link-arrow:hover {
  color: var(--amber);
}
<<<END>>>