.page-about {
  --about-panel-line: rgba(253, 248, 240, 0.18);
  background: var(--pearl);
  color: var(--ink);
}

.page-about .about-crumb {
  padding-top: 24px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 20px 0 48px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: var(--sp-5);
  align-items: end;
}

.page-about .about-hero__copy .display {
  margin: 12px 0 20px;
  color: var(--deep);
}

.page-about .about-hero__copy .lead {
  max-width: 54ch;
  color: var(--ink-soft);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.page-about .about-hero__panel {
  position: relative;
  overflow: hidden;
  padding: 26px 22px;
  border-radius: var(--r-xl);
  background: linear-gradient(158deg, var(--deep) 0%, var(--midnight) 100%);
  color: var(--pearl);
  box-shadow: var(--shadow-2);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  right: -56px;
  bottom: -70px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 90, 60, 0.5), transparent 68%);
  pointer-events: none;
}

.page-about .about-panel__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--coral-soft);
}

.page-about .about-panel__list {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-panel__list li {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--about-panel-line);
}

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

.page-about .about-panel__num {
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--coral-soft);
}

.page-about .about-panel__label {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(253, 248, 240, 0.78);
}

/* ---------- 通用章节 ---------- */
.page-about .about-sec {
  padding-block: 44px;
}

/* ---------- 起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: var(--sp-5);
}

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

.page-about .about-origin__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-about .about-stats-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: var(--sp-5) 0 0;
  padding: 20px;
  list-style: none;
  border-radius: var(--r-md);
  background: var(--mist);
}

.page-about .about-stats-strip li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .about-stats-strip strong {
  font-size: 26px;
  line-height: 1;
  color: var(--deep);
}

.page-about .about-stats-strip span {
  font-size: 13px;
  line-height: 1.55;
  color: var(--slate);
}

/* ---------- 时间线 ---------- */
.page-about .about-tl {
  display: grid;
  gap: var(--sp-4);
  margin-top: var(--sp-5);
}

.page-about .about-tl__years {
  display: flex;
  gap: var(--sp-2);
  padding-bottom: 8px;
  overflow-x: auto;
}

.page-about .about-tl__year {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: var(--pearl);
  color: var(--deep);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-tl__year:hover,
.page-about .about-tl__year:focus-visible {
  background: var(--cream);
  border-color: var(--coral);
  color: var(--coral);
  outline: none;
}

.page-about .about-tl__cards {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .about-tl__item {
  scroll-margin-top: 110px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #fff;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-tl__item:target {
  border-color: var(--coral);
  box-shadow: inset 4px 0 0 var(--coral), var(--shadow-1);
}

.page-about .about-tl__yr {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--coral);
}

.page-about .about-tl__item .h3 {
  margin: 0 0 8px;
  color: var(--deep);
}

.page-about .about-tl__item p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 分类体系 ---------- */
.page-about .about-cats__intro {
  display: grid;
  gap: var(--sp-5);
  margin-top: var(--sp-4);
}

.page-about .about-cats__copy .lead {
  max-width: 62ch;
  margin: 0 0 12px;
  color: var(--ink-soft);
}

.page-about .about-cats__copy .lead:last-child {
  margin-bottom: 0;
}

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

.page-about .about-cats__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-about .about-cats__grid {
  margin: var(--sp-5) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-cat {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--pearl);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .about-cat:hover {
  transform: translateY(-2px);
  border-color: var(--coral);
  background: #fff;
}

.page-about .about-cat__idx {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--coral);
}

.page-about .about-cat__name {
  margin: 2px 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--deep);
}

.page-about .about-cat p,
.page-about .about-next__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: var(--sp-5);
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-about .about-team__body .lead {
  max-width: 56ch;
  margin: 0 0 var(--sp-4);
  color: var(--ink-soft);
}

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

.page-about .about-bar {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) 40px;
  align-items: center;
  gap: 12px;
}

.page-about .about-bar__label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.page-about .about-bar__track {
  display: block;
  height: 10px;
  border-radius: var(--pill);
  background: var(--mist);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--deep), var(--palm));
}

.page-about .about-bar:nth-child(1) .about-bar__fill {
  width: 40%;
}

.page-about .about-bar:nth-child(2) .about-bar__fill {
  width: 20%;
}

.page-about .about-bar:nth-child(3) .about-bar__fill {
  width: 27%;
}

.page-about .about-bar:nth-child(4) .about-bar__fill {
  width: 13%;
}

.page-about .about-bar__num {
  font-size: 15px;
  font-weight: 700;
  text-align: right;
  color: var(--deep);
}

.page-about .about-chip-list {
  margin-top: var(--sp-4);
}

/* ---------- 合作与承诺 ---------- */
.page-about .about-eco__band {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  background: var(--cream);
}

.page-about .about-eco__band > p {
  max-width: 64ch;
  margin: var(--sp-3) 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-about .about-eco__facts {
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-eco__facts li {
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: rgba(253, 248, 240, 0.82);
  border: 1px solid rgba(42, 30, 24, 0.08);
}

.page-about .about-eco__facts strong {
  display: block;
  font-size: 28px;
  line-height: 1;
  color: var(--deep);
}

.page-about .about-eco__facts span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-about .about-promise {
  display: grid;
  gap: 14px;
  margin-top: var(--sp-4);
}

.page-about .about-promise__card {
  padding: 24px;
  border-radius: var(--r-lg);
}

.page-about .about-promise__card .h3 {
  margin: 0 0 10px;
}

.page-about .about-promise__card p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.75;
}

.page-about .about-promise__card--a {
  background: var(--deep);
  color: var(--pearl);
}

.page-about .about-promise__card--a .h3 {
  color: var(--pearl);
}

.page-about .about-promise__card--a p {
  color: rgba(253, 248, 240, 0.82);
}

.page-about .about-promise__card--b {
  background: var(--pearl);
  border: 1px solid var(--line);
  border-top: 4px solid var(--coral);
}

.page-about .about-promise__card--b .h3 {
  color: var(--deep);
}

.page-about .about-promise__card--b p {
  color: var(--ink-soft);
}

/* ---------- 下一步 ---------- */
.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: var(--sp-4);
}

.page-about .about-next__card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #fff;
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--coral);
  box-shadow: var(--shadow-1);
  outline: none;
}

.page-about .about-next__idx {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--coral);
}

.page-about .about-next__card .about-cat__name {
  margin: 0 0 6px;
}

/* ---------- 入场节奏 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-about .about-tl__item {
    animation: about-rise 0.5s var(--ease) both;
  }

  .page-about .about-tl__item:nth-child(2) {
    animation-delay: 0.05s;
  }

  .page-about .about-tl__item:nth-child(3) {
    animation-delay: 0.1s;
  }

  .page-about .about-tl__item:nth-child(4) {
    animation-delay: 0.15s;
  }

  .page-about .about-tl__item:nth-child(5) {
    animation-delay: 0.2s;
  }
}

@keyframes about-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 窄屏适配 ---------- */
@media (min-width: 560px) {
  .page-about .about-stats-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

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

  .page-about .about-tl__cards {
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-about .about-crumb {
    padding-top: 32px;
  }

  .page-about .about-hero {
    padding: 24px 0 80px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-6);
  }

  .page-about .about-hero__panel {
    padding: 32px 28px;
  }

  .page-about .about-panel__num {
    font-size: 32px;
  }

  .page-about .about-sec {
    padding-block: 80px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-6);
    align-items: start;
  }

  .page-about .about-tl {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: var(--sp-6);
  }

  .page-about .about-tl__years {
    flex-direction: column;
    overflow: visible;
    position: sticky;
    top: 96px;
    align-self: start;
    padding-bottom: 0;
  }

  .page-about .about-tl__year {
    width: 100%;
  }

  .page-about .about-tl__item {
    padding: 24px 26px;
  }

  .page-about .about-tl__item p:last-child {
    font-size: 16px;
  }

  .page-about .about-cats__intro {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-6);
    align-items: center;
  }

  .page-about .about-cats__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--sp-6);
    align-items: center;
  }

  .page-about .about-eco__band {
    padding: 44px 48px;
  }

  .page-about .about-eco__band > p {
    font-size: 17px;
  }

  .page-about .about-promise {
    margin-top: var(--sp-5);
  }

  .page-about .about-promise__card {
    padding: 28px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__copy .display {
    max-width: 13ch;
  }

  .page-about .about-next__card {
    padding: 24px;
  }
}