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

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

.page-about .about-crumbs {
  padding: 14px 0;
  border-bottom: 1px solid var(--yd-line);
  background: var(--yd-cream);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 48px 0 56px;
  background: var(--yd-night);
  color: var(--yd-cream);
  border-bottom: 1px solid var(--yd-line-dark);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(169, 179, 191, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 179, 191, .09) 1px, transparent 1px);
  background-size: 62px 62px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -170px;
  right: -130px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(224, 137, 28, .34), rgba(224, 137, 28, 0) 68%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--yd-ochre);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--yd-font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 8.6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--yd-cream);
}

.page-about .about-hero__title-lite {
  display: block;
  margin-bottom: 6px;
  font-size: .48em;
  font-weight: 300;
  letter-spacing: .04em;
  color: var(--yd-ochre);
}

.page-about .about-hero__lead {
  max-width: 38ch;
  margin: 22px 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(245, 239, 228, .86);
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--yd-line-dark);
  border: 1px solid var(--yd-line-dark);
}

.page-about .about-hero__fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--yd-night);
}

.page-about .about-hero__num {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--yd-gold);
}

.page-about .about-hero__label {
  font-size: .82rem;
  line-height: 1.5;
  color: var(--yd-silver);
}

/* ---------- 通用章节 ---------- */

.page-about .about-section {
  padding: 52px 0;
}

.page-about .about-section + .about-section {
  border-top: 1px solid var(--yd-line);
}

.page-about .about-section__head {
  max-width: 40ch;
}

.page-about .yd-section__lead {
  margin: 14px 0 0;
  max-width: 38ch;
}

/* ---------- 服务对象 ---------- */

.page-about .about-audience__list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  border-top: 1px solid var(--yd-line);
}

.page-about .about-audience__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--yd-line);
}

.page-about .about-audience__no {
  grid-row: 1 / span 2;
  font-size: .95rem;
  font-weight: 700;
  color: var(--yd-gold);
  letter-spacing: .06em;
}

.page-about .about-audience__title {
  margin: 0;
  font-family: var(--yd-font-display);
  font-size: 1.06rem;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -.01em;
}

.page-about .about-audience__text {
  margin: 8px 0 0;
  max-width: 37ch;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(42, 33, 28, .82);
}

/* ---------- 版本演进 ---------- */

.page-about .about-stages__intro {
  display: grid;
  gap: 28px;
  margin-bottom: 40px;
}

.page-about .about-stages__figure {
  max-width: 340px;
}

.page-about .about-stages__introtext .yd-section__lead {
  max-width: 40ch;
}

.page-about .about-stages__layout {
  display: grid;
  gap: 8px;
}

.page-about .about-axis {
  margin-bottom: 26px;
}

.page-about .about-axis__caption {
  margin: 0 0 10px;
  color: rgba(42, 33, 28, .55);
}

.page-about .about-axis__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-axis__item {
  flex: 0 0 auto;
}

.page-about .about-axis__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--yd-line);
  background: var(--yd-paper);
  color: var(--yd-ink);
  font-size: .88rem;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .22s var(--yd-ease), background .22s var(--yd-ease);
}

.page-about .about-axis__link .yd-mono {
  color: var(--yd-gold);
  font-weight: 700;
}

.page-about .about-axis__link:hover,
.page-about .about-axis__link:focus-visible {
  border-color: var(--yd-gold);
  background: var(--yd-cream);
}

.page-about .about-stage {
  scroll-margin-top: 130px;
  margin-bottom: 18px;
  padding: 24px 20px;
  background: var(--yd-paper);
  border: 1px solid var(--yd-line);
  border-left: 3px solid var(--yd-gold);
}

.page-about .about-stage__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yd-rust);
}

.page-about .about-stage__title {
  margin: 12px 0 0;
  font-family: var(--yd-font-display);
  font-size: 1.24rem;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
}

.page-about .about-stage__text {
  margin: 12px 0 0;
  max-width: 37ch;
  font-size: .96rem;
  line-height: 1.82;
  color: rgba(42, 33, 28, .84);
}

.page-about .about-stage__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--yd-line);
  font-size: .86rem;
  color: var(--yd-rust);
}

/* ---------- 团队 ---------- */

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

.page-about .about-team__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--yd-line);
}

.page-about .about-team__item {
  padding: 20px 0;
  border-bottom: 1px solid var(--yd-line);
}

.page-about .about-team__name {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--yd-font-display);
  font-size: 1.04rem;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-about .about-team__name::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  background: var(--yd-night);
  border: 1px solid var(--yd-gold);
}

.page-about .about-team__desc {
  margin: 9px 0 0 19px;
  max-width: 36ch;
  font-size: .93rem;
  line-height: 1.8;
  color: rgba(42, 33, 28, .82);
}

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

/* ---------- 服务覆盖 ---------- */

.page-about .about-coverage__media {
  margin: 34px 0 30px;
}

.page-about .about-coverage__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--yd-line);
  border: 1px solid var(--yd-line);
}

.page-about .about-coverage__item {
  padding: 22px 18px;
  background: var(--yd-cream);
}

.page-about .about-coverage__city {
  margin: 0;
  font-family: var(--yd-font-display);
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: .04em;
}

.page-about .about-coverage__meta {
  margin: 6px 0 0;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--yd-rust);
}

.page-about .about-coverage__text {
  margin: 12px 0 0;
  font-size: .92rem;
  line-height: 1.8;
  color: rgba(42, 33, 28, .82);
}

.page-about .about-coverage__note {
  margin: 22px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--yd-amber);
  font-size: .88rem;
  line-height: 1.75;
  color: rgba(42, 33, 28, .7);
}

/* ---------- 费用体系 ---------- */

.page-about .about-fee {
  border-top: 1px solid var(--yd-night);
}

.page-about .about-fee .yd-section__title {
  color: var(--yd-cream);
}

.page-about .about-fee .yd-title-lite {
  color: var(--yd-ochre);
}

.page-about .about-fee .yd-section__index {
  color: var(--yd-ochre);
}

.page-about .about-fee .yd-section__lead {
  color: rgba(245, 239, 228, .8);
  max-width: 40ch;
}

.page-about .about-fee__grid {
  margin: 34px 0 0;
  display: grid;
  gap: 1px;
  background: var(--yd-line-dark);
  border: 1px solid var(--yd-line-dark);
}

.page-about .about-fee__card {
  padding: 22px 18px;
  background: var(--yd-night);
}

.page-about .about-fee__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--yd-gold);
}

.page-about .about-fee__text {
  margin: 12px 0 0;
  font-size: .93rem;
  line-height: 1.82;
  color: rgba(245, 239, 228, .84);
}

.page-about .about-fee__text .yd-mono {
  color: var(--yd-ochre);
  font-weight: 700;
}

.page-about .about-fee__more {
  margin: 26px 0 0;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(245, 239, 228, .72);
}

.page-about .about-fee__more a {
  color: var(--yd-ochre);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 180, 92, .5);
  padding-bottom: 1px;
  transition: color .2s var(--yd-ease), border-color .2s var(--yd-ease);
}

.page-about .about-fee__more a:hover,
.page-about .about-fee__more a:focus-visible {
  color: var(--yd-neon);
  border-color: var(--yd-neon);
}

/* ---------- 服务节奏 ---------- */

.page-about .about-rhythm__grid {
  margin: 34px 0 0;
  display: grid;
  gap: 1px;
  background: var(--yd-line);
  border: 1px solid var(--yd-line);
}

.page-about .about-rhythm__cell {
  padding: 20px 18px;
  background: var(--yd-paper);
}

.page-about .about-rhythm__num {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--yd-rust);
}

.page-about .about-rhythm__desc {
  margin: 10px 0 0;
  font-size: .9rem;
  line-height: 1.78;
  color: rgba(42, 33, 28, .82);
}

/* ---------- 下一步 ---------- */

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

.page-about .about-next__grid {
  display: grid;
  gap: 26px;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-next__actions .yd-btn {
  flex: 1 1 auto;
  min-width: 160px;
  text-align: center;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 700px) {
  .page-about .about-hero {
    padding: 72px 0 84px;
  }

  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 780px;
  }

  .page-about .about-section {
    padding: 76px 0;
  }

  .page-about .about-audience__list {
    margin-top: 44px;
  }

  .page-about .about-audience__item {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 26px 0;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 48px;
    align-items: start;
  }

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

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

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

  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 36px;
  }
}

@media (min-width: 900px) {
  .page-about .about-stages__intro {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
    margin-bottom: 56px;
  }

  .page-about .about-stages__figure {
    max-width: 100%;
  }

  .page-about .about-stages__layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .about-axis {
    position: sticky;
    top: 132px;
    margin-bottom: 0;
  }

  .page-about .about-axis__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 1px solid var(--yd-line);
    padding-bottom: 0;
  }

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

  .page-about .about-axis__item::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 21px;
    width: 7px;
    height: 7px;
    background: var(--yd-gold);
  }

  .page-about .about-axis__link {
    display: flex;
    padding: 13px 0 13px 18px;
    border: 0;
    background: transparent;
    white-space: normal;
  }

  .page-about .about-axis__link:hover,
  .page-about .about-axis__link:focus-visible {
    background: transparent;
    color: var(--yd-rust);
  }

  .page-about .about-stage {
    padding: 30px 28px;
    margin-bottom: 24px;
  }

  .page-about .about-stage:nth-child(even) {
    margin-left: 52px;
  }

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

  .page-about .about-rhythm__cell:first-child {
    grid-column: span 2;
  }
}

@media (min-width: 1120px) {
  .page-about .about-hero {
    padding: 92px 0 100px;
  }

  .page-about .about-hero__lead {
    font-size: 1.06rem;
  }

  .page-about .about-section {
    padding: 96px 0;
  }

  .page-about .about-stage__title {
    font-size: 1.34rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}