.page-about {
  --about-cut: 20px;
  --about-line: 1px solid var(--edge);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(77, 224, 255, .16), rgba(77, 224, 255, 0) 68%);
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-about .about-hero__title {
  margin: 14px 0 16px;
  font-size: clamp(2.05rem, 7.6vw, 3.85rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-hero__title::after {
  content: "";
  display: block;
  width: 96px;
  height: 7px;
  margin-top: 22px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
  clip-path: polygon(0 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
}

.page-about .about-hero__lead {
  max-width: 60ch;
  color: var(--white);
}

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

.page-about .about-hero__figure {
  margin: 0;
  aspect-ratio: 4 / 5;
  border-radius: 2px 26px 2px 26px;
  overflow: hidden;
}

.page-about .about-hero__figure img,
.page-about .about-mission__figure img,
.page-about .about-audience__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-about .about-hero__stats {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-stat {
  padding: 20px 20px 22px;
  background: linear-gradient(180deg, var(--panel), rgba(15, 24, 38, .3));
  border: var(--about-line);
  border-top-width: 2px;
  border-radius: 2px 18px 2px 2px;
}

.page-about .about-stat--cyan { border-top-color: var(--cyan); }
.page-about .about-stat--orange { border-top-color: var(--orange); }
.page-about .about-stat--rose { border-top-color: var(--rose); }

.page-about .about-stat .label {
  color: var(--muted);
}

.page-about .about-stat__value {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 12px 0 8px;
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 9vw, 3.4rem);
  line-height: 1;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-stat--cyan .about-stat__num { color: var(--cyan); }
.page-about .about-stat--orange .about-stat__num { color: var(--orange); }
.page-about .about-stat--rose .about-stat__num { color: var(--rose); }

.page-about .about-stat__unit {
  font-size: .95rem;
  color: var(--muted);
  letter-spacing: .04em;
}

.page-about .about-stat__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--muted);
}

/* 使命 */

.page-about .about-mission__grid {
  display: grid;
  gap: 34px;
}

.page-about .about-h2 {
  margin: 12px 0 18px;
  font-size: clamp(1.55rem, 4.6vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-mission__body p {
  color: var(--white);
}

.page-about .about-mission__pull {
  margin: 26px 0 0;
  padding: 18px 22px;
  border-left: 3px solid var(--amber);
  background: rgba(242, 193, 78, .06);
  border-radius: 0 16px 0 0;
  font-weight: 600;
  color: var(--white) !important;
}

.page-about .about-mission__figure {
  margin: 0;
  aspect-ratio: 5 / 4;
  border-radius: 22px 2px 22px 2px;
  overflow: hidden;
}

/* 三条做法 */

.page-about .about-head {
  max-width: 68ch;
}

.page-about .about-pillars__grid {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.page-about .about-pillar {
  position: relative;
  padding: 26px 22px 26px 26px;
  background: var(--panel);
  border: var(--about-line);
  border-radius: 18px 2px 18px 2px;
  overflow: hidden;
}

.page-about .about-pillar::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  background: var(--cyan);
}

.page-about .about-pillar--rose::before { background: var(--rose); }
.page-about .about-pillar--grass::before { background: var(--grass); }

.page-about .about-pillar h3 {
  margin: 14px 0 10px;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-pillar p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-pillar .label {
  color: var(--cyan);
}

.page-about .about-pillar--rose .label { color: var(--rose); }
.page-about .about-pillar--grass .label { color: var(--grass); }

/* 服务对象 */

.page-about .about-audience__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-role-list {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-role {
  padding: 16px 18px 18px;
  background: rgba(19, 32, 51, .6);
  border: var(--about-line);
  border-left-width: 3px;
  border-radius: 0 14px 0 14px;
}

.page-about .about-role--cyan { border-left-color: var(--cyan); }
.page-about .about-role--grass { border-left-color: var(--grass); }
.page-about .about-role--amber { border-left-color: var(--amber); }
.page-about .about-role--rose { border-left-color: var(--rose); }

.page-about .about-role dt {
  font-weight: 700;
  font-size: .98rem;
  color: var(--white);
}

.page-about .about-role dd {
  margin: 6px 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-about .about-audience__figure {
  margin: 0;
  aspect-ratio: 12 / 7;
  border-radius: 2px 24px 2px 24px;
  overflow: hidden;
}

/* 时间轴 */

.page-about .about-timeline__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-track {
  list-style: none;
  margin: 0;
  padding: 4px 0 0 26px;
  border-left: 1px solid var(--edge);
}

.page-about .about-track__item {
  position: relative;
  padding-bottom: 30px;
}

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

.page-about .about-track__item::before {
  content: "";
  position: absolute;
  top: 8px;
  left: -32px;
  width: 11px;
  height: 11px;
  background: var(--cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(77, 224, 255, .12);
}

.page-about .about-track__item--grass::before {
  background: var(--grass);
  box-shadow: 0 0 0 4px rgba(63, 214, 140, .12);
}

.page-about .about-track__item--rose::before {
  background: var(--rose);
  box-shadow: 0 0 0 4px rgba(255, 61, 129, .12);
}

.page-about .about-track__stamp {
  margin: 0;
  color: var(--muted);
}

.page-about .about-track__item h3 {
  margin: 8px 0 8px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-track__item p:last-child {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--muted);
}

/* 开始合作 */

.page-about .about-start__panel {
  position: relative;
  display: grid;
  gap: 32px;
  padding: 30px 22px;
  background: linear-gradient(150deg, rgba(19, 32, 51, .95), rgba(7, 11, 20, .9));
  border: var(--about-line);
  border-radius: 2px 30px 2px 30px;
  overflow: hidden;
}

.page-about .about-start__panel::before {
  content: "";
  position: absolute;
  bottom: -160px;
  left: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 122, 41, .14), rgba(255, 122, 41, 0) 70%);
  pointer-events: none;
}

.page-about .about-start__intro {
  position: relative;
}

.page-about .about-start__intro p {
  color: var(--white);
}

.page-about .about-start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-start__steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(15, 24, 38, .8);
  border: var(--about-line);
  border-radius: 16px 2px 16px 2px;
}

.page-about .about-step__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1.1;
  font-weight: 700;
  color: var(--orange);
}

.page-about .about-step h3 {
  margin: 2px 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-step p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.72;
  color: var(--muted);
}

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

  .page-about .about-pillars__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-start__panel {
    padding: 42px 40px;
  }

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

  .page-about .about-step {
    flex-direction: column;
    gap: 8px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: end;
    gap: 52px;
  }

  .page-about .about-hero__figure {
    aspect-ratio: 3 / 4;
  }
}

@media (min-width: 980px) {
  .page-about .about-mission__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
    gap: 58px;
  }

  .page-about .about-audience__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
    gap: 52px;
  }

  .page-about .about-timeline__grid {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: 60px;
  }

  .page-about .about-start__panel {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: center;
    gap: 48px;
  }
}