.page-about {
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-about .breadcrumb {
  padding-block: 1.1rem 0.2rem;
}

/* ---------- hero ---------- */

.page-about .about-hero {
  position: relative;
  padding-block: clamp(1.4rem, 4vw, 2.5rem) clamp(2.4rem, 6vw, 4.5rem);
  border-bottom: var(--rule);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -18vmax;
  bottom: -32vmax;
  width: 62vmax;
  height: 62vmax;
  background: radial-gradient(circle at 40% 40%, rgba(100, 221, 229, 0.26), rgba(15, 111, 126, 0.06) 55%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-about .about-hero__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.3rem, 6.6vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0.42em 0 0.5em;
  text-wrap: balance;
}

.page-about .about-hero__lede {
  max-width: 34em;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.8;
  color: var(--ink-80);
  margin: 0;
}

.page-about .about-hero__marks {
  list-style: none;
  margin: clamp(1.6rem, 3vw, 2.2rem) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
  border-top: var(--hair);
  padding-top: 1.1rem;
}

.page-about .about-hero__marks li {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  color: var(--ink-60);
}

.page-about .about-hero__marknum {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--river);
  letter-spacing: 0;
}

.page-about .about-hero__figure {
  margin: 0;
  align-self: end;
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--rule);
  box-shadow: var(--shadow-hard);
  background: var(--ink);
}

.page-about .about-hero__figure figcaption {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--ink-60);
  padding-left: 0.9rem;
  border-left: 3px solid var(--gold);
}

/* ---------- 通用章节 ---------- */

.page-about .about-section {
  padding-block: clamp(2.6rem, 6vw, 4.6rem);
}

.page-about .about-h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.65rem, 3.6vw, 2.65rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0.35em 0 0.7em;
  text-wrap: balance;
}

.page-about .about-h2--light {
  color: var(--paper-white);
}

/* ---------- 名字的来处 ---------- */

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

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-about .about-origin__note {
  border: var(--rule);
  background: var(--paper-white);
  box-shadow: var(--shadow-river);
  padding: clamp(1.2rem, 3vw, 1.7rem);
  align-self: start;
}

.page-about .about-note__label {
  margin: 0 0 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cinnabar);
  font-weight: 700;
}

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

.page-about .about-note__steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--ink-soft);
  padding-bottom: 0.9rem;
  border-bottom: 1px dashed var(--ink-30);
}

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

.page-about .about-note__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--mist);
  line-height: 1;
}

.page-about .about-note__foot {
  margin: 1.1rem 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--ink-60);
}

.page-about .about-note__foot a,
.page-about .about-team__asideFoot a {
  color: var(--river);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

.page-about .about-note__foot a:hover,
.page-about .about-team__asideFoot a:hover {
  color: var(--cinnabar);
}

/* ---------- 四种水势 ---------- */

.page-about .about-waves {
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-white) 100%);
}

.page-about .about-waves__head {
  max-width: 44rem;
  margin-bottom: clamp(1.8rem, 4vw, 2.8rem);
}

.page-about .about-waves__intro {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-80);
}

.page-about .about-wave__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--rule);
}

.page-about .about-wave__item {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 0.4rem 1rem;
  padding: clamp(1.15rem, 3vw, 1.6rem) 0;
  border-bottom: var(--hair);
  transition: background-color 0.3s var(--ease);
}

.page-about .about-wave__item:hover {
  background: rgba(15, 111, 126, 0.05);
}

.page-about .about-wave__num {
  grid-row: span 2;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 1.6rem;
  color: var(--river);
  line-height: 1.1;
}

.page-about .about-wave__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  letter-spacing: -0.01em;
  line-height: 1.4;
}

.page-about .about-wave__item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink-80);
  max-width: 44em;
}

/* ---------- 时间线 ---------- */

.page-about .about-timeline {
  background: var(--paper);
  border-top: var(--rule);
}

.page-about .about-timeline__head {
  max-width: 46rem;
}

.page-about .about-timeline__lede {
  margin: 0 0 clamp(1.6rem, 4vw, 2.4rem);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink-80);
}

.page-about .about-timeline__figure {
  margin: 0 0 clamp(2rem, 5vw, 3rem);
}

.page-about .about-timeline__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--rule);
}

.page-about .about-timeline__figure figcaption {
  margin-top: 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-60);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2rem);
}

.page-about .about-timeline__item {
  position: relative;
  padding-top: 1.5rem;
  border-top: 2px solid var(--ink-30);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--river);
  transition: background-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .about-timeline__item:hover {
  border-color: var(--river);
  transform: translateY(-3px);
}

.page-about .about-timeline__item:hover::before {
  background: var(--river-bright);
  transform: scale(1.25);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.02em;
  margin-bottom: 0.45rem;
}

.page-about .about-timeline__name {
  margin: 0 0 0.4rem;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--river-deep);
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--ink-80);
}

/* ---------- 团队 ---------- */

.page-about .about-team {
  background: var(--paper-white);
  border-top: var(--rule);
}

.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.7rem, 4vw, 2.6rem);
}

.page-about .about-team__tags {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

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

.page-about .about-team__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--rule);
  box-shadow: var(--shadow-hard);
}

.page-about .about-team__figure figcaption {
  margin-top: 0.8rem;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink-60);
  padding-left: 0.9rem;
  border-left: 3px solid var(--bamboo);
}

.page-about .about-team__aside {
  border: var(--rule);
  border-left-width: 8px;
  border-left-color: var(--bamboo);
  background: var(--paper);
  padding: clamp(1.15rem, 3vw, 1.6rem);
  align-self: start;
}

.page-about .about-team__asideLabel {
  margin: 0 0 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--bamboo);
}

.page-about .about-team__aside p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-team__asideFoot {
  margin-top: 0.9rem !important;
  padding-top: 0.9rem;
  border-top: 1px dashed var(--ink-30);
  font-size: 0.84rem !important;
  color: var(--ink-60) !important;
}

/* ---------- 数字带 ---------- */

.page-about .about-figures {
  background: var(--ink);
  color: var(--paper-white);
  border-top: 3px solid var(--river);
  border-bottom: 3px solid var(--gold);
  padding-block: clamp(2.4rem, 5.5vw, 3.8rem);
}

.page-about .eyebrow--light {
  color: var(--river-bright);
}

.page-about .about-figures__head {
  max-width: 40rem;
  margin-bottom: clamp(1.8rem, 4vw, 2.6rem);
}

.page-about .about-figures__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(255, 253, 247, 0.16);
  border: 1px solid rgba(255, 253, 247, 0.16);
}

.page-about .about-figures__item {
  background: var(--ink);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}

.page-about .about-figures__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(2rem, 4.6vw, 2.9rem);
  line-height: 1;
  color: var(--river-bright);
  letter-spacing: -0.02em;
}

.page-about .about-figures__label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--paper-white);
}

.page-about .about-figures__item p {
  margin: 0.55rem 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(255, 253, 247, 0.72);
}

/* ---------- 下一步 ---------- */

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

.page-about .about-next__head {
  max-width: 40rem;
  margin-bottom: clamp(1.6rem, 4vw, 2.4rem);
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(0.9rem, 2vw, 1.2rem);
}

.page-about .about-next__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-areas:
    "num title arrow"
    "num desc arrow";
  gap: 0.15rem 1rem;
  align-items: center;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  border: var(--rule);
  background: var(--paper-white);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow-hard);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0 var(--river);
  background: var(--paper);
}

.page-about .about-next__num {
  grid-area: num;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 1.7rem;
  color: var(--mist);
  line-height: 1;
  padding-right: 0.5rem;
}

.page-about .about-next__title {
  grid-area: title;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  letter-spacing: -0.01em;
}

.page-about .about-next__desc {
  grid-area: desc;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-60);
}

.page-about .about-next__arrow {
  grid-area: arrow;
  font-size: 1.3rem;
  color: var(--cinnabar);
  transition: transform 0.25s var(--ease);
}

.page-about .about-next__link:hover .about-next__arrow {
  transform: translateX(4px);
}

/* ---------- 桌面布局 ---------- */

@media (min-width: 760px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-origin__note {
    margin-top: 2.6rem;
  }

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

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

  .page-about .about-next__link {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "num arrow"
      "title title"
      "desc desc";
    align-items: start;
    row-gap: 0.5rem;
    height: 100%;
  }

  .page-about .about-next__num {
    font-size: 2rem;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-about .about-hero__figure {
    margin-bottom: 0.5rem;
  }

  .page-about .about-wave__item {
    grid-template-columns: 4.5rem minmax(0, 17rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 0.4rem 1.6rem;
  }

  .page-about .about-wave__num {
    grid-row: span 1;
    font-size: 2.1rem;
  }

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

  .page-about .about-timeline__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 1.6rem);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    grid-template-areas:
      "body figure"
      "aside figure";
    align-items: start;
    gap: clamp(1.8rem, 4vw, 3rem);
  }

  .page-about .about-team__body {
    grid-area: body;
  }

  .page-about .about-team__figure {
    grid-area: figure;
    margin-top: 1rem;
  }

  .page-about .about-team__aside {
    grid-area: aside;
    margin-right: clamp(0rem, 3vw, 2.5rem);
  }

  .page-about .about-figures__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__item,
  .page-about .about-timeline__item::before,
  .page-about .about-next__link,
  .page-about .about-next__arrow {
    transition: none;
  }

  .page-about .about-timeline__item:hover,
  .page-about .about-timeline__item:hover::before,
  .page-about .about-next__link:hover,
  .page-about .about-next__link:focus-visible {
    transform: none;
  }
}
<<<END>>>