.page-about {
  --about-offset: clamp(0px, 7vw, 104px);
  --about-card-pad: clamp(18px, 2.6vw, 30px);
}

/* ============ 首屏封面 ============ */
.page-about .about-cover {
  position: relative;
  overflow: hidden;
  background: var(--zy-blue);
  color: var(--zy-white);
  padding: clamp(44px, 8vw, 100px) 0 clamp(40px, 6.5vw, 84px);
}

.page-about .about-cover::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto 45%;
  height: 460px;
  background:
    radial-gradient(circle at 28% 34%, rgba(255, 122, 0, 0.26), transparent 62%),
    radial-gradient(circle at 72% 62%, rgba(0, 180, 160, 0.3), transparent 60%);
  pointer-events: none;
}

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

.page-about .about-cover .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
}

.page-about .about-cover .breadcrumb a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
}

.page-about .about-cover .breadcrumb a:hover {
  text-decoration: underline;
}

.page-about .about-cover .breadcrumb span[aria-hidden] {
  margin: 0 8px;
  opacity: 0.5;
}

.page-about .about-cover .eyebrow {
  color: var(--zy-signal);
}

.page-about .about-cover__title {
  margin: 0 0 clamp(18px, 2.6vw, 28px);
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-about .about-cover__lead {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .about-cover__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 2vw, 26px) clamp(20px, 3.2vw, 48px);
  margin-top: clamp(30px, 4.6vw, 54px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.page-about .about-fact {
  flex: 1 1 168px;
  min-width: 0;
  padding-left: 16px;
  border-left: 2px solid rgba(255, 255, 255, 0.3);
}

.page-about .about-fact__num {
  display: block;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1;
  color: var(--zy-signal);
  letter-spacing: 0.02em;
}

.page-about .about-fact__label {
  display: block;
  margin-top: 9px;
  font-size: 14px;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.8);
}

/* ============ 起点与初心 ============ */
.page-about .about-origin {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-about .about-origin__text .section-head__title {
  margin-bottom: clamp(16px, 2.2vw, 24px);
}

.page-about .about-origin__text .btn-row {
  margin-top: clamp(22px, 3vw, 32px);
}

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

/* ============ 发展节点时间轴 ============ */
.page-about .about-timeline {
  padding-top: clamp(44px, 6.5vw, 88px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
  background: linear-gradient(180deg, rgba(230, 234, 240, 0.62) 0%, rgba(247, 244, 238, 0) 72%);
}

.page-about .about-timeline__intro {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  margin-bottom: clamp(30px, 4.5vw, 56px);
}

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

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.8vw, 30px);
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 26px;
  border-left: 2px solid var(--zy-line);
  display: grid;
  gap: 10px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 12px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--zy-orange);
  box-shadow: 0 0 0 4px var(--zy-paper);
}

.page-about .about-timeline__year {
  display: inline-block;
  font-size: clamp(19px, 2.6vw, 28px);
  line-height: 1.1;
  color: var(--zy-blue);
  letter-spacing: 0.03em;
}

.page-about .about-timeline__card {
  padding: var(--about-card-pad);
  border-radius: var(--panel-radius);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-about .about-timeline__item:hover .about-timeline__card,
.page-about .about-timeline__item:focus-within .about-timeline__card {
  transform: translateY(-4px);
  border-color: var(--zy-teal);
  box-shadow: var(--shadow-panel);
}

.page-about .about-timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.4;
  color: var(--zy-ink);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--zy-text-body);
}

/* ============ 团队分工 ============ */
.page-about .about-team {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
}

.page-about .about-team__head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-about .about-team__card {
  display: flex;
  flex-direction: column;
  padding: var(--about-card-pad);
  border: 1px solid var(--zy-line);
  border-radius: var(--panel-radius);
  background: rgba(230, 234, 240, 0.5);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-within {
  transform: translateY(-4px);
  border-color: var(--zy-teal);
  background: var(--zy-white);
  box-shadow: var(--shadow-panel);
}

.page-about .about-team__badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--zy-ink);
  background: var(--zy-signal);
  border-radius: 2px;
}

.page-about .about-team__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.35;
  color: var(--zy-blue);
}

.page-about .about-team__card > p {
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--zy-text-body);
}

.page-about .about-team__list {
  list-style: none;
  margin: auto 0 0;
  padding: 16px 0 0;
  border-top: 1px dashed var(--zy-line);
  display: grid;
  gap: 9px;
}

.page-about .about-team__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--zy-text-soft);
}

.page-about .about-team__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--zy-teal);
}

.page-about .about-team__figure {
  margin: clamp(30px, 4.4vw, 52px) 0 0;
}

/* ============ 项目流程 ============ */
.page-about .about-flow {
  padding-top: clamp(46px, 6.5vw, 92px);
  padding-bottom: clamp(40px, 6vw, 80px);
  background: var(--zy-paper);
}

.page-about .about-flow__head {
  margin-bottom: clamp(26px, 3.8vw, 46px);
}

.page-about .about-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-about .about-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: clamp(16px, 2.2vw, 22px) clamp(16px, 2.2vw, 24px);
  background: var(--zy-white);
  border-left: 3px solid var(--zy-blue);
  border-radius: 0 var(--panel-radius) var(--panel-radius) 0;
  transition: border-color 0.26s var(--ease), transform 0.26s var(--ease);
}

.page-about .about-flow__step:hover {
  border-left-color: var(--zy-orange);
  transform: translateX(4px);
}

.page-about .about-flow__step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 26px;
  bottom: -11px;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--zy-line);
}

.page-about .about-flow__num {
  font-size: 15px;
  line-height: 1.6;
  color: var(--zy-orange);
  letter-spacing: 0.06em;
}

.page-about .about-flow__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.4;
  color: var(--zy-ink);
}

.page-about .about-flow__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--zy-text-body);
}

.page-about .about-flow__actions {
  margin-top: clamp(26px, 3.6vw, 42px);
}

/* ============ 长期陪伴 ============ */
.page-about .about-after {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(48px, 7vw, 96px);
  background: var(--zy-ink);
  color: var(--zy-white);
}

.page-about .about-after__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-about .about-after__intro .eyebrow--onink {
  color: var(--zy-signal);
}

.page-about .about-after__title {
  margin: 0 0 16px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.22;
  color: var(--zy-white);
}

.page-about .about-after__lead {
  margin: 0 0 clamp(20px, 2.8vw, 30px);
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(255, 255, 255, 0.78);
}

.page-about .about-after__list {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-about .about-after__item {
  padding: clamp(18px, 2.4vw, 24px);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(191, 231, 226, 0.28);
  border-radius: var(--panel-radius);
  transition: background-color 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .about-after__item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--zy-teal);
}

.page-about .about-after__item-title {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--zy-white);
}

.page-about .about-after__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.74);
}

/* ============ 收尾号召 ============ */
.page-about .about-cta {
  padding-top: clamp(38px, 5.4vw, 68px);
  padding-bottom: clamp(38px, 5.4vw, 68px);
  background: var(--zy-paper);
}

.page-about .about-cta__inner {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: center;
  padding: clamp(24px, 3.6vw, 42px);
  border: 1px solid var(--zy-line);
  border-radius: var(--panel-radius);
  background: var(--zy-white);
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.25;
  color: var(--zy-blue);
}

.page-about .about-cta__lead {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--zy-text-body);
}

/* ============ 响应式 ============ */
@media (min-width: 720px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-origin__grid {
    grid-template-columns: 1.3fr 0.85fr;
    align-items: start;
  }

  .page-about .about-timeline__intro {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: end;
  }

  .page-about .about-timeline__item {
    padding-left: 44px;
  }

  .page-about .about-timeline__item:nth-child(odd) {
    margin-right: var(--about-offset);
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: var(--about-offset);
  }

  .page-about .about-flow__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(16px, 2.2vw, 24px);
  }

  .page-about .about-flow__step:not(:last-child)::after {
    content: none;
  }

  .page-about .about-after__grid {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }

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

  .page-about .about-cta__inner {
    grid-template-columns: 1.4fr auto;
  }
}

@media (min-width: 1080px) {
  .page-about .about-cover__title {
    max-width: 16ch;
  }
}
<<<END>>>