/* ========== 品牌档案页专属样式 ========== */
.page-about {
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- 首屏标题区 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 12% 18%, var(--gold-light) 0%, transparent 42%),
    linear-gradient(120deg, rgba(228, 216, 240, 0.6) 0%, transparent 48%);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 2;
  padding: 40px 24px 56px;
}

.page-about .about-hero__tag {
  margin-top: 28px;
  display: inline-flex;
  padding: 6px 14px;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-pill);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-about .about-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 18px 0 16px;
  max-width: 760px;
  color: var(--ink);
}

.page-about .about-hero__title span {
  display: block;
  color: var(--purple);
}

.page-about .about-hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  max-width: 580px;
  color: var(--green-deep);
  border-left: 4px solid var(--gold);
  padding-left: 16px;
  margin-bottom: 18px;
}

.page-about .about-hero__meta {
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(31, 29, 27, 0.65);
  margin-top: 6px;
}

.page-about .about-hero__deco {
  position: absolute;
  z-index: 1;
  right: 16px;
  top: 64px;
  width: 160px;
  opacity: 0.5;
  pointer-events: none;
}

.page-about .about-hero__deco svg {
  width: 100%;
  height: auto;
}

@media (max-width: 520px) {
  .page-about .about-hero__deco {
    width: 100px;
    top: 96px;
    right: 8px;
    opacity: 0.34;
  }
}

/* ---------- 章节标签通用 ---------- */
.page-about .about-section-head {
  margin-bottom: 20px;
}

.page-about .about-section-tag {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  background: var(--gold-light);
  color: var(--green-deep);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.page-about .about-story h2,
.page-about .about-timeline-card h2,
.page-about .about-team h2,
.page-about .about-certs h2,
.page-about .about-partners h2,
.page-about .about-awards h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  margin: 0 0 12px;
}

/* ---------- 品牌故事 ---------- */
.page-about .about-story {
  padding: 56px 24px 24px;
  max-width: var(--container);
  margin: 0 auto;
}

.page-about .about-story__media {
  position: relative;
  max-width: 500px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  background: var(--purple-light);
}

.page-about .about-story__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 5 / 4;
}

.page-about .about-story__caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  background: rgba(250, 244, 232, 0.92);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
}

.page-about .about-story__content {
  margin-top: 28px;
}

.page-about .about-story__lead {
  font-size: 1.35rem;
  color: var(--purple);
  font-weight: 700;
  margin: 12px 0 16px;
}

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

.page-about .about-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-family: var(--font-heading);
  font-size: 14px;
}

.page-about .about-pill__num {
  color: var(--purple);
  font-weight: 700;
  font-size: 20px;
  font-style: italic;
}

/* ---------- 左右分置主布局 ---------- */
.page-about .about-split {
  padding: 56px 24px 80px;
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline-card {
  background: linear-gradient(160deg, var(--purple-light) 0%, var(--cream) 58%, var(--gold-light) 100%);
  border: 1px solid rgba(107, 45, 139, 0.12);
  border-radius: var(--radius-lg);
  padding: 32px 20px;
  box-shadow: var(--shadow-card);
}

.page-about .about-timeline-desc {
  font-size: 14px;
  color: rgba(31, 29, 27, 0.7);
  margin-bottom: 20px;
}

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

.page-about .about-timeline-item {
  position: relative;
  border-bottom: 1px dashed rgba(107, 45, 139, 0.16);
}

.page-about .about-timeline-item:last-child {
  border-bottom: none;
}

.page-about .about-timeline-trigger {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: transparent;
  border: none;
  padding: 14px 4px;
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background 200ms ease;
}

.page-about .about-timeline-trigger:hover {
  background: rgba(107, 45, 139, 0.08);
}

.page-about .about-timeline-trigger:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

.page-about .about-timeline-item:not(:last-child) .about-timeline-trigger::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 52px;
  bottom: -28px;
  width: 2px;
  background: var(--gold);
  opacity: 0.5;
}

.page-about .about-timeline-node {
  display: inline-flex;
  flex: 0 0 36px;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.page-about .about-timeline-node svg {
  display: block;
  width: 34px;
  height: 34px;
  transition: transform 200ms var(--transition-ease);
}

.page-about .about-timeline-trigger:hover .about-timeline-node svg {
  transform: scale(1.12);
}

.page-about .about-timeline-date {
  font-family: var(--font-index);
  font-size: 14px;
  font-weight: 700;
  color: var(--purple);
  flex-shrink: 0;
}

.page-about .about-timeline-name {
  flex: 1;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}

.page-about .about-timeline-icon {
  flex-shrink: 0;
  color: var(--gold);
  display: inline-flex;
  transition: transform 400ms var(--transition-ease);
}

.page-about .about-timeline-item[data-open] .about-timeline-icon {
  transform: rotate(45deg);
}

.page-about .about-timeline-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 400ms var(--transition-ease);
}

.page-about .about-timeline-item[data-open] .about-timeline-panel,
.page-about .about-timeline-panel[data-visible] {
  grid-template-rows: 1fr;
}

.page-about .about-timeline-panel__inner {
  overflow: hidden;
  padding-left: 52px;
  padding-right: 8px;
}

.page-about .about-timeline-panel__inner p {
  font-size: 14px;
  color: rgba(31, 29, 27, 0.76);
  padding-bottom: 18px;
  border-left: 2px solid var(--purple-light);
  padding-left: 14px;
  margin: 0;
}

@media (scripting: none) {
  .page-about .about-timeline-panel {
    grid-template-rows: 1fr;
  }
  .page-about .about-timeline-icon {
    display: none;
  }
}

/* ---------- 右侧主列 ---------- */
.page-about .about-main-col {
  min-width: 0;
}

.page-about .about-main-col > section {
  margin-bottom: 72px;
}

/* ---------- 团队与组织 ---------- */
.page-about .about-team__grid {
  margin-top: 20px;
  display: grid;
  gap: 24px;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-team__stat {
  position: relative;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: center;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.page-about .about-donut {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 44px;
  height: 44px;
  opacity: 0.35;
}

.page-about .about-donut svg {
  width: 100%;
  height: auto;
}

.page-about .about-team__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--green-soft);
  box-shadow: var(--shadow-card);
}

.page-about .about-team__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__caption,
.page-about .about-partners__caption {
  font-size: 11px;
  padding: 6px 12px 8px;
  color: rgba(31, 29, 27, 0.6);
}

/* ---------- 资质与认证 ---------- */
.page-about .about-certs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

.page-about .about-certs__card {
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: grid;
  justify-items: start;
  transition: transform 200ms var(--transition-ease), box-shadow 200ms var(--transition-ease);
}

.page-about .about-certs__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.page-about .about-certs__icon {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--purple-light);
  border-radius: 16px;
  margin-bottom: 14px;
}

.page-about .about-certs__icon svg {
  width: 38px;
  height: 38px;
}

.page-about .about-certs__card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin: 0 0 8px;
}

.page-about .about-certs__card p {
  font-size: 14px;
  color: rgba(31, 29, 27, 0.72);
  margin-bottom: 14px;
}

/* ---------- 合作伙伴与生态 ---------- */
.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 20px;
  align-items: center;
}

.page-about .about-partners__types {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-partner-type {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.page-about .about-partner-type .label-index {
  color: var(--gold);
  font-weight: 700;
}

.page-about .about-partner-type div {
  flex: 1;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-partner-type strong {
  font-family: var(--font-heading);
  font-size: 15px;
}

.page-about .about-partner-type div span {
  font-family: var(--font-index);
  font-size: 14px;
  color: var(--purple);
  font-weight: 700;
}

.page-about .about-partners__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--gold-light);
  box-shadow: var(--shadow-card);
}

.page-about .about-partners__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 行业荣誉 ---------- */
.page-about .about-awards__list {
  margin-top: 20px;
  display: grid;
  gap: 14px;
}

.page-about .about-award-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--gray-line);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.page-about .about-award-item:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-hover);
}

.page-about .about-award-item .tag {
  grid-column: 2;
  justify-self: start;
}

.page-about .about-award-item__year {
  font-family: var(--font-index);
  font-weight: 700;
  font-style: italic;
  font-size: 1.5rem;
  color: var(--purple);
}

.page-about .about-award-item__body h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  margin: 0 0 6px;
}

.page-about .about-award-item__body p {
  font-size: 13px;
  color: rgba(31, 29, 27, 0.72);
  margin: 0;
}

/* ---------- 延伸导航 ---------- */
.page-about .about-cta {
  background: linear-gradient(120deg, var(--green-deep) 0%, rgba(46, 77, 63, 0.92) 100%);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  color: var(--white);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-about .about-cta__label {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  margin: 0;
}

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

.page-about .about-cta .btn-primary {
  background: var(--gold);
  color: var(--ink);
}

.page-about .about-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.7);
  color: var(--white);
}

.page-about .about-cta a:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 桌面端与栅格增强 ---------- */
@media (min-width: 760px) {
  .page-about .about-story {
    display: grid;
    grid-template-columns: minmax(280px, 460px) 1fr;
    gap: 48px;
    align-items: center;
    padding: 72px 32px 40px;
  }

  .page-about .about-story__content {
    margin-top: 0;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .about-team__content {
    order: 1;
  }

  .page-about .about-team__media {
    order: 2;
  }

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

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

  .page-about .about-award-item {
    grid-template-columns: 72px 1fr auto;
    align-items: start;
  }

  .page-about .about-award-item .tag {
    grid-column: auto;
    justify-self: start;
  }

  .page-about .about-split,
  .page-about .about-story,
  .page-about .about-timeline-col,
  .page-about .about-main-col {
    min-width: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .about-hero__inner {
    padding: 72px 48px 80px;
  }

  .page-about .about-hero__deco {
    width: 260px;
    top: 56px;
  }

  .page-about .about-split {
    grid-template-columns: minmax(340px, 420px) 1fr;
    gap: 64px;
    align-items: start;
  }

  .page-about .about-timeline-col {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .about-main-col > section {
    margin-bottom: 88px;
  }

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