.page-about {
  --about-line: rgba(143, 166, 184, 0.24);
  --about-line-soft: rgba(143, 166, 184, 0.12);
  --about-body: rgba(244, 247, 250, 0.76);
  --about-lead: rgba(244, 247, 250, 0.74);
  background:
    radial-gradient(920px 480px at 84% -10%, rgba(34, 211, 238, 0.14), transparent 68%),
    radial-gradient(700px 420px at 6% 18%, rgba(20, 184, 166, 0.09), transparent 70%),
    var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about .about-crumb {
  padding-top: 16px;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(40px, 6vw, 82px);
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--about-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--about-line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 7.6vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-about .about-hero__text {
  max-width: 48ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--about-body);
}

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

.page-about .about-hero__panel {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--about-line);
  border-radius: 14px;
  background: linear-gradient(158deg, rgba(20, 184, 166, 0.18), rgba(11, 27, 43, 0.92) 58%);
  box-shadow: var(--shadow-panel);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 22px;
  height: 22px;
  border-top: 1px solid var(--stroke-cyan);
  border-right: 1px solid var(--stroke-cyan);
  border-radius: 0 4px 0 0;
  pointer-events: none;
}

.page-about .about-panel__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-about .about-stats {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-stats li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-stats__num {
  font-size: clamp(26px, 3.4vw, 34px);
  line-height: 1;
  color: var(--mint);
}

.page-about .about-stats__cap {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--haze);
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    align-items: end;
  }
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding: clamp(48px, 7vw, 92px) 0;
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-section__head {
  max-width: 76ch;
}

.page-about .about-section h2,
.page-about .about-side h2 {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.018em;
  color: var(--paper);
}

.page-about .about-section__lead,
.page-about .about-side__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-lead);
}

/* ---------- 品牌定位 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .about-steps {
  display: grid;
  gap: 8px;
  margin-top: 26px;
}

.page-about .about-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--about-line-soft);
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-about .about-step:hover,
.page-about .about-step:focus-visible {
  background: rgba(34, 211, 238, 0.08);
  border-color: var(--stroke-cyan);
  border-left-color: var(--cyan);
  transform: translateX(2px);
}

.page-about .about-step__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-about .about-main {
  display: grid;
  gap: 16px;
}

.page-about .about-pillar {
  position: relative;
  padding: 22px 22px 20px;
  border: 1px solid var(--about-line-soft);
  border-radius: 12px;
  background: rgba(16, 42, 67, 0.55);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-about .about-pillar:hover {
  transform: translateY(-2px);
  border-color: var(--stroke-cyan);
  box-shadow: var(--shadow-lift);
}

.page-about .about-pillar--mint { border-left: 3px solid var(--teal); }
.page-about .about-pillar--slate { border-left: 3px solid var(--haze); }
.page-about .about-pillar--amber { border-left: 3px solid var(--amber); }

.page-about .about-pillar h3 {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2vw, 23px);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-pillar p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--about-body);
}

.page-about .about-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

.page-about .about-link::after {
  content: "→";
}

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

.page-about .about-figure {
  margin: 6px 0 0;
}

.page-about .about-figure img,
.page-about .about-map__figure img,
.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

@media (min-width: 760px) {
  .page-about .about-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-pillar:first-child,
  .page-about .about-figure {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    align-items: start;
  }
  .page-about .about-side {
    position: sticky;
    top: 108px;
  }
}

/* ---------- 服务版图 ---------- */
.page-about .about-section--map {
  background: linear-gradient(180deg, rgba(16, 42, 67, 0.94) 0%, rgba(16, 42, 67, 0.35) 62%, transparent 100%);
}

.page-about .about-map {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 40px);
  margin-top: clamp(24px, 4vw, 40px);
}

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

.page-about .about-map__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-about .about-map__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-map__item:last-child {
  border-bottom: 0;
}

.page-about .about-map__num {
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1;
  color: var(--amber);
}

.page-about .about-map__item h3 {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-about .about-map__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--haze);
}

.page-about .about-nodes {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 20px;
}

.page-about .about-nodes__track {
  stroke: var(--about-line);
  stroke-width: 2;
  stroke-dasharray: 6 6;
}

.page-about .about-node {
  cursor: default;
}

.page-about .about-node__dot {
  fill: var(--ink-deep);
  stroke: var(--cyan);
  stroke-width: 2;
  transition: fill 180ms var(--ease), stroke 180ms var(--ease);
}

.page-about .about-node__name {
  fill: var(--paper);
  font-family: var(--font-body);
  font-size: 13px;
  text-anchor: middle;
}

.page-about .about-node__tip {
  fill: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-anchor: middle;
  opacity: 0;
  transition: opacity 180ms var(--ease);
}

.page-about .about-node:hover .about-node__dot,
.page-about .about-node:focus-within .about-node__dot,
.page-about .about-node:focus .about-node__dot {
  fill: var(--cyan);
  stroke: var(--mint);
}

.page-about .about-node:hover .about-node__tip,
.page-about .about-node:focus-within .about-node__tip,
.page-about .about-node:focus .about-node__tip {
  opacity: 1;
}

@media (min-width: 900px) {
  .page-about .about-map {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

/* ---------- 会员服务方法 ---------- */
.page-about .about-section--method {
  background: linear-gradient(180deg, rgba(20, 184, 166, 0.07), transparent 62%);
}

.page-about .about-flow {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-flow__item {
  position: relative;
  padding: 22px 18px 20px;
  border: 1px solid var(--about-line-soft);
  border-radius: 10px;
  background: rgba(16, 42, 67, 0.5);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-flow__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 18px;
  right: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
}

.page-about .about-flow__item:hover {
  transform: translateY(-2px);
  border-color: var(--stroke-cyan);
}

.page-about .about-flow__no {
  display: inline-block;
  font-size: 22px;
  line-height: 1;
  color: var(--mint);
}

.page-about .about-flow__item h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--paper);
}

.page-about .about-flow__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-body);
}

.page-about .about-flow__note {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 16px 18px;
  border-left: 3px solid var(--mint);
  border-radius: 0 8px 8px 0;
  background: rgba(103, 232, 249, 0.06);
}

.page-about .about-flow__note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--about-body);
}

@media (min-width: 760px) {
  .page-about .about-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-flow__item:nth-child(even) {
    transform: translateY(16px);
  }
  .page-about .about-flow__item:nth-child(even):hover {
    transform: translateY(14px);
  }
}

/* ---------- 团队分工 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-team__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-role {
  padding: 20px 18px;
  border: 1px solid var(--about-line-soft);
  border-radius: 10px;
  background: rgba(11, 27, 43, 0.72);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-role:hover {
  transform: translateY(-2px);
  border-color: var(--stroke-cyan);
}

.page-about .about-role__count {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--haze);
}

.page-about .about-role__count .numeral {
  font-size: 26px;
  line-height: 1;
  color: var(--mint);
}

.page-about .about-role h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  color: var(--paper);
}

.page-about .about-role p:last-child {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--about-body);
}

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

.page-about .about-team__metrics {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 30px);
  padding-top: 18px;
  border-top: 1px dashed var(--about-line);
}

.page-about .about-team__metric {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--haze);
}

.page-about .about-team__metric .numeral {
  margin-right: 6px;
  font-size: 20px;
  color: var(--cyan);
}

@media (min-width: 620px) {
  .page-about .about-team__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-role:nth-child(2),
  .page-about .about-role:nth-child(4) {
    margin-top: 18px;
  }
}

@media (min-width: 900px) {
  .page-about .about-team {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }
  .page-about .about-team__metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 合作生态 ---------- */
.page-about .about-section--eco {
  background: linear-gradient(180deg, rgba(245, 184, 75, 0.06), transparent 58%);
}

.page-about .about-eco {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-about .about-eco__figure {
  display: flex;
  justify-content: center;
}

.page-about .about-rings {
  display: block;
  width: 100%;
  max-width: 400px;
  height: auto;
}

.page-about .about-rings__orbit {
  fill: none;
  stroke: var(--about-line);
  stroke-dasharray: 4 8;
}

.page-about .about-rings__link {
  stroke: var(--stroke-cyan);
  stroke-width: 1.5;
  stroke-dasharray: 3 5;
}

.page-about .about-rings__hub {
  fill: rgba(34, 211, 238, 0.12);
  stroke: var(--cyan);
  stroke-width: 2;
}

.page-about .about-rings__hub-text {
  fill: var(--paper);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  text-anchor: middle;
}

.page-about .about-rings__node {
  fill: var(--midnight);
  stroke-width: 2;
}

.page-about .about-rings__node--media {
  stroke: var(--teal);
}

.page-about .about-rings__node--edu {
  stroke: var(--amber);
  stroke-dasharray: 5 4;
}

.page-about .about-rings__node--svc {
  stroke: var(--haze);
  stroke-dasharray: 2 5;
}

.page-about .about-rings__num {
  fill: var(--paper);
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  text-anchor: middle;
}

.page-about .about-eco__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-about .about-eco__legend li {
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-eco__legend li:last-child {
  border-bottom: 0;
}

.page-about .about-eco__dot {
  width: 12px;
  height: 12px;
  margin-top: 5px;
  border-radius: 50%;
  border: 2px solid var(--haze);
  background: transparent;
}

.page-about .about-eco__dot--media { border-color: var(--teal); }
.page-about .about-eco__dot--edu { border-color: var(--amber); }
.page-about .about-eco__dot--svc { border-color: var(--haze); }

.page-about .about-eco__legend h3 {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--paper);
}

.page-about .about-eco__legend p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--about-body);
}

.page-about .about-eco__note {
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0;
  background: rgba(245, 184, 75, 0.08);
  font-size: 14px;
  line-height: 1.78;
  color: var(--about-body);
}

@media (min-width: 900px) {
  .page-about .about-eco {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}

/* ---------- 服务保障 ---------- */
.page-about .about-section--care {
  border-bottom: 0;
  background: linear-gradient(180deg, rgba(16, 42, 67, 0.85), rgba(6, 16, 26, 0.96));
}

.page-about .about-care {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-care__lead {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-lead);
}

.page-about .about-care__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-care__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-care__list li span:first-child {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--haze);
}

.page-about .about-care__list li span:last-child {
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
  word-break: break-word;
}

.page-about .about-care__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--haze);
}

.page-about .about-care__acts {
  display: grid;
  gap: 12px;
  align-content: start;
}

@media (min-width: 560px) {
  .page-about .about-care__list li {
    grid-template-columns: 110px 1fr;
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-about .about-care {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-step,
  .page-about .about-pillar,
  .page-about .about-role,
  .page-about .about-flow__item,
  .page-about .about-node__dot,
  .page-about .about-node__tip {
    transition: none;
  }
  .page-about .about-flow__item:nth-child(even) {
    transform: none;
  }
}
<<<END>>>