.page-about {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  overflow: clip;
}

.page-about .container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ===== 面包屑 ===== */
.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-block: 1.5rem 0.5rem;
  font-size: 0.875rem;
  color: var(--deep-gray);
}

.page-about .breadcrumb a {
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .breadcrumb a:hover {
  color: var(--orange);
}

.page-about .breadcrumb [aria-current="page"] {
  color: var(--deep-gray);
}

/* ===== Hero ===== */
.page-about .about-hero {
  position: relative;
  padding-block: 2rem 2.5rem;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -4rem;
  right: -6rem;
  width: 16rem;
  height: 16rem;
  background: var(--slate);
  opacity: 0.08;
  border-radius: 0.875rem;
  transform: rotate(14deg);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: -3rem;
  bottom: -2rem;
  width: 10rem;
  height: 10rem;
  background: var(--orange);
  opacity: 0.06;
  border-radius: 50%;
}

.page-about .about-hero__inner {
  display: grid;
  gap: 2rem;
}

.page-about .about-hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin-bottom: 0.75rem;
}

.page-about .about-hero h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  line-height: 1.25;
  font-weight: 700;
  margin: 0 0 1.25rem;
  text-wrap: balance;
}

.page-about .about-hero__sep {
  color: var(--orange);
  margin-inline: 0.375rem;
  font-weight: 400;
}

.page-about .about-hero__lead {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--deep-gray);
  margin-bottom: 1.5rem;
  max-width: 36em;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-about .about-hero__actions .btn {
  border-radius: 99px;
}

.page-about .about-hero__note {
  font-size: 0.875rem;
  color: var(--slate);
  border-top: 1px solid var(--light-gray);
  padding-top: 0.875rem;
  max-width: 30em;
  line-height: 1.6;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  padding: 1rem 1rem 2.75rem;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(1.4deg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about .about-hero__figure:hover {
  transform: rotate(0deg) translateY(-4px);
  box-shadow: 0 8px 28px rgba(43, 43, 43, 0.12);
}

.page-about .about-hero__figure::before {
  content: "";
  position: absolute;
  top: 0.75rem;
  right: -0.5rem;
  bottom: -0.75rem;
  left: 0.75rem;
  background: var(--slate);
  opacity: 0.06;
  border-radius: var(--radius);
  z-index: -1;
}

.page-about .about-hero__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
}

.page-about .about-hero__caption {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 0.75rem;
  font-size: 0.75rem;
  color: var(--deep-gray);
  text-align: center;
}

/* ===== 页面内导航 ===== */
.page-about .about-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-block: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--light-gray);
  margin-bottom: 1.5rem;
}

.page-about .about-index a {
  font-size: 0.875rem;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-index a:hover {
  color: var(--orange);
  border-color: var(--orange);
}

.page-about .about-index__sep {
  color: var(--orange);
}

/* ===== 各区块共通kicker ===== */
.page-about .about-mission__kicker,
.page-about .about-journey__kicker,
.page-about .about-values__kicker,
.page-about .about-team__kicker,
.page-about .about-cta__kicker {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  letter-spacing: 0.16em;
  color: var(--orange);
  margin-bottom: 0.5rem;
}

/* ===== 我们为何存在 ===== */
.page-about .about-mission {
  background: var(--slate);
  color: var(--white);
  padding-block: 2.5rem;
  position: relative;
  overflow: hidden;
}

.page-about .about-mission::after {
  content: "";
  position: absolute;
  right: -2rem;
  bottom: -2rem;
  width: 8rem;
  height: 8rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
}

.page-about .about-mission__grid {
  display: grid;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}

.page-about .about-mission .section-title {
  color: var(--white);
  margin-bottom: 0;
}

.page-about .about-mission__lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 1rem;
}

.page-about .about-mission__body p {
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 1rem;
  max-width: 66ch;
}

.page-about .about-mission__list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.625rem;
}

.page-about .about-mission__list li {
  position: relative;
  padding-left: 1.5rem;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.page-about .about-mission__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.625rem;
  height: 0.625rem;
  background: var(--orange);
  border-radius: 1px;
  transform: rotate(12deg);
}

/* ===== 成长印记 ===== */
.page-about .about-journey {
  padding-block: 3rem 2.5rem;
  position: relative;
}

.page-about .about-journey::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 100%;
  height: 100%;
  background: rgba(74, 93, 107, 0.03);
  transform: translateX(-50%);
  pointer-events: none;
}

.page-about .about-journey__head {
  max-width: 40em;
  margin-bottom: 2rem;
}

.page-about .about-journey .section-title {
  margin-bottom: 0.5rem;
}

.page-about .about-journey__intro {
  color: var(--deep-gray);
  line-height: 1.7;
}

.page-about .about-journey__layout {
  display: grid;
  gap: 2rem;
}

.page-about .about-journey__timeline {
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.page-about .about-journey__timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange), var(--blue), var(--light-gray));
}

.page-about .about-journey__item {
  position: relative;
  padding-left: 2rem;
}

.page-about .about-journey__marker {
  position: absolute;
  left: -0.375rem;
  top: 0.625rem;
  width: 0.875rem;
  height: 0.875rem;
  border-radius: 50%;
  background: var(--orange);
  border: 3px solid var(--paper);
  box-shadow: 0 0 0 1px var(--orange);
}

.page-about .about-journey__card {
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  padding: 1.125rem 1.25rem;
  box-shadow: 0 4px 16px rgba(43, 43, 43, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}

.page-about .about-journey__card:hover {
  transform: translateX(6px);
  box-shadow: 0 8px 24px rgba(43, 43, 43, 0.12);
}

.page-about .about-journey__card:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-about .about-journey__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
  background: rgba(255, 107, 53, 0.1);
  border-radius: 99px;
  padding: 0.25rem 0.625rem;
  margin-bottom: 0.625rem;
}

.page-about .about-journey__card h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  margin: 0 0 0.5rem;
}

.page-about .about-journey__summary {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--deep-gray);
  margin: 0;
}

.page-about .about-journey__detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin-top 0.4s ease, padding-top 0.4s ease, border-color 0.4s ease;
  border-top: 1px dashed transparent;
}

.page-about .about-journey__card:hover .about-journey__detail,
.page-about .about-journey__card:focus-within .about-journey__detail {
  max-height: 16rem;
  margin-top: 0.75rem;
  padding-top: 0.625rem;
  border-top-color: var(--light-gray);
}

.page-about .about-journey__detail p {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--slate);
  margin: 0;
}

.page-about .about-journey__figure {
  margin: 0;
  padding: 0.875rem;
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(-1deg);
}

.page-about .about-journey__figure img,
.page-about .about-values__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--radius) - 6px);
}

.page-about .about-journey__figure figcaption,
.page-about .about-values__figure figcaption {
  font-size: 0.75rem;
  color: var(--deep-gray);
  padding: 0.625rem 0.125rem 0;
  line-height: 1.5;
}

/* ===== 服务理念 ===== */
.page-about .about-values {
  background: var(--white);
  border-block: 1px solid var(--light-gray);
  padding-block: 3rem 2.5rem;
}

.page-about .about-values__head {
  max-width: 40em;
  margin-bottom: 1.5rem;
}

.page-about .about-values .section-title {
  margin-bottom: 0.5rem;
}

.page-about .about-values__intro {
  color: var(--deep-gray);
  line-height: 1.7;
}

.page-about .about-values__grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.page-about .about-values__item {
  background: var(--paper);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.page-about .about-values__item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.page-about .about-values__item--speed {
  border-top: 3px solid var(--orange);
}

.page-about .about-values__item--clarity {
  border-top: 3px solid var(--blue);
}

.page-about .about-values__item--companion {
  border-top: 3px solid var(--slate);
}

.page-about .about-values__num {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--orange);
  display: block;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.page-about .about-values__item--clarity .about-values__num {
  color: var(--blue);
}

.page-about .about-values__item--companion .about-values__num {
  color: var(--slate);
}

.page-about .about-values__item h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  margin: 0 0 0.625rem;
}

.page-about .about-values__item p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--deep-gray);
  margin: 0;
  max-width: 34em;
}

.page-about .about-values__figure {
  margin: 0;
  padding: 0.875rem;
  background: var(--paper);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(0.8deg);
  max-width: 40rem;
}

/* ===== 团队与文化 ===== */
.page-about .about-team {
  padding-block: 3rem 2.5rem;
}

.page-about .about-team__grid {
  display: grid;
  gap: 2rem;
}

.page-about .about-team .section-title {
  margin-bottom: 0.5rem;
}

.page-about .about-team__intro {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.page-about .about-team__copy p {
  color: var(--deep-gray);
  line-height: 1.75;
  max-width: 62ch;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.page-about .about-team__stat {
  background: var(--white);
  border: 1px solid var(--light-gray);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  box-shadow: 0 2px 10px rgba(43, 43, 43, 0.04);
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-team__stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
  margin-bottom: 0.375rem;
}

.page-about .about-team__stat:nth-child(1) .about-team__num {
  color: var(--orange);
}

.page-about .about-team__stat:nth-child(2) .about-team__num {
  color: var(--blue);
}

.page-about .about-team__stat:nth-child(3) .about-team__num {
  color: var(--slate);
}

.page-about .about-team__stat:nth-child(4) .about-team__num {
  color: var(--warm-orange);
}

.page-about .about-team__label {
  font-size: 0.75rem;
  color: var(--deep-gray);
  line-height: 1.4;
  display: block;
}

/* ===== 底部CTA ===== */
.page-about .about-cta {
  background: var(--ink);
  color: var(--white);
  padding-block: 3rem;
}

.page-about .about-cta__inner {
  text-align: center;
  max-width: 44rem;
}

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

.page-about .about-cta h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0 0 1rem;
  text-wrap: balance;
}

.page-about .about-cta p {
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.page-about .about-cta__actions .btn {
  border-radius: 99px;
}

.page-about .about-cta .btn--outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--white);
}

/* ===== 平板响应式 ===== */
@media (min-width: 768px) {
  .page-about .container {
    padding-inline: 2rem;
  }

  .page-about .about-hero {
    padding-block: 3rem 3.5rem;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
    gap: 3rem;
  }

  .page-about .about-hero__lead {
    margin-bottom: 1.75rem;
  }

  .page-about .about-mission__grid {
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
  }

  .page-about .about-mission__body {
    padding-top: 0.25rem;
  }

  .page-about .about-journey__layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 2.5rem;
  }

  .page-about .about-journey__figure {
    margin-top: 1.75rem;
    transform: rotate(-1.5deg);
  }

  .page-about .about-values__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-about .about-values__figure {
    margin-top: 1.5rem;
    max-width: 50rem;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
  }

  .page-about .about-team__stats {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-cta {
    padding-block: 3.5rem;
  }
}

/* ===== 桌面响应式 ===== */
@media (min-width: 1024px) {
  .page-about .about-hero h1 {
    font-size: 2.5rem;
  }

  .page-about .about-hero__note {
    margin-top: 0.25rem;
  }

  .page-about .about-index {
    padding-block: 1rem 2rem;
  }

  .page-about .about-mission {
    padding-block: 3rem 3.5rem;
  }

  .page-about .about-journey__layout {
    gap: 3.5rem;
  }

  .page-about .about-journey__timeline {
    padding-left: 0;
  }

  .page-about .about-journey__card {
    padding: 1.25rem 1.5rem;
  }

  .page-about .about-values {
    padding-block: 4rem 3rem;
  }

  .page-about .about-values__grid {
    gap: 2rem;
  }

  .page-about .about-team {
    padding-block: 4rem 3rem;
  }

  .page-about .about-cta__inner {
    padding-block: 0.5rem;
  }
}

/* ===== 动效偏好：减弱动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation: none !important;
    transition: none !important;
  }

  .page-about .about-journey__detail {
    max-height: none;
  }

  .page-about .about-hero__figure,
  .page-about .about-journey__figure,
  .page-about .about-values__figure {
    transform: none;
  }
}