.page-about {
  --about-tint-pomelo: rgba(255, 122, 24, 0.14);
  --about-tint-berry: rgba(142, 45, 122, 0.12);
  --about-tint-lime: rgba(150, 193, 31, 0.16);
  --about-tint-crust: rgba(255, 209, 102, 0.28);
  --about-line: rgba(43, 27, 18, 0.14);
  background: var(--cream-paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  overflow-x: hidden;
}

.page-about .pie-breadcrumb {
  padding-top: 22px;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-head);
  letter-spacing: -0.01em;
  line-height: 1.22;
  margin: 0;
}

.page-about p {
  margin: 0;
}

.page-about .pie-mono {
  font-family: var(--font-mono);
}

/* ================= 首屏 ================= */

.page-about .about-hero {
  position: relative;
  padding: 26px 0 60px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -40px 0 auto 0;
  height: 480px;
  background: linear-gradient(118deg, var(--about-tint-pomelo) 0%, var(--about-tint-berry) 52%, rgba(255, 249, 240, 0) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 0 100%);
  z-index: 0;
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  padding: 6px 16px 6px 10px;
  border: var(--border);
  border-radius: 999px;
  background: var(--cream);
  font-size: 14px;
  color: var(--cocoa);
}

.page-about .about-hero__eyebrow .pie-mono {
  font-weight: 700;
  color: var(--berry);
  font-size: 14px;
}

.page-about .about-hero__title {
  font-size: 34px;
  font-weight: 900;
  margin-bottom: 22px;
}

.page-about .about-hero__accent {
  display: inline;
  background: linear-gradient(180deg, transparent 62%, var(--crust) 62%, var(--crust) 92%, transparent 92%);
  padding: 0 2px;
}

.page-about .about-hero__lede {
  max-width: 620px;
  margin-bottom: 14px;
  color: var(--cocoa);
}

.page-about .about-hero__lede strong {
  color: var(--ink);
  font-weight: 800;
  font-size: 1.05em;
}

.page-about .about-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.page-about .about-hero__aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.page-about .about-hero__dish {
  position: relative;
  width: min(300px, 78vw);
  aspect-ratio: 1 / 1;
  border: var(--border);
  border-radius: 50%;
  background: radial-gradient(circle at 32% 26%, var(--cream) 0%, var(--cream) 46%, var(--crust) 46%, var(--crust) 100%);
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-align: center;
}

.page-about .about-hero__dish::after {
  content: "";
  position: absolute;
  inset: 16% 16% 16% 16%;
  border-radius: 50%;
  border: 2px dashed rgba(43, 27, 18, 0.4);
  pointer-events: none;
}

.page-about .about-hero__dish-label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cocoa);
}

.page-about .about-hero__dish-ver {
  font-size: 46px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1;
}

.page-about .about-hero__dish-sub {
  font-size: 13px;
  color: var(--berry);
  font-weight: 700;
}

.page-about .about-hero__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-hero__chips li {
  padding: 5px 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--cream);
  font-size: 13px;
  font-weight: 700;
  color: var(--cocoa);
}

.page-about .about-hero__chips li.is-current {
  background: var(--pomelo);
  color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

/* ================= 章节骨架 ================= */

.page-about .about-section {
  padding: 56px 0;
  position: relative;
}

.page-about .about-section__head {
  display: grid;
  gap: 18px;
  margin-bottom: 34px;
}

.page-about .about-num {
  width: 62px;
  height: 62px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  border: var(--border);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-about .about-section__head-text .pie-section__title {
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-about .about-section__head-text .pie-section__lede {
  max-width: 680px;
  color: var(--cocoa);
}

/* ================= 01 历程 ================= */

.page-about .about-history {
  background: linear-gradient(180deg, rgba(237, 227, 211, 0.55) 0%, rgba(247, 239, 226, 0) 100%);
}

.page-about .about-history__figure {
  margin: 0 0 40px;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about .about-history__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

.page-about .about-history__figure figcaption {
  padding: 12px 20px 14px;
  border-top: 2px solid var(--ink);
  font-size: 14px;
  color: var(--cocoa);
  background: var(--paper-grey);
}

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

.page-about .about-history__arc {
  display: none;
  color: var(--pomelo);
}

.page-about .about-history__list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

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

.page-about .about-history__node {
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about .about-history__head {
  display: grid;
  grid-template-columns: 84px 1fr 26px;
  align-items: center;
  gap: 14px;
  padding: 16px 16px 16px 14px;
  cursor: pointer;
  list-style: none;
}

.page-about .about-history__head::-webkit-details-marker {
  display: none;
}

.page-about .about-history__tag {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 8px 4px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--about-tint-crust);
}

.page-about .about-history__ver {
  font-size: 14px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.1;
}

.page-about .about-history__phase {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cocoa);
}

.page-about .about-history__head-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-about .about-history__title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink);
}

.page-about .about-history__teaser {
  font-size: 14px;
  color: var(--cocoa);
  line-height: 1.6;
}

.page-about .about-history__toggle {
  position: relative;
  width: 24px;
  height: 24px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--cream);
  flex: none;
}

.page-about .about-history__toggle::before,
.page-about .about-history__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.page-about .about-history__toggle::before {
  width: 11px;
  height: 2px;
}

.page-about .about-history__toggle::after {
  width: 2px;
  height: 11px;
  transition: transform 200ms ease;
}

.page-about .about-history__node[open] .about-history__toggle {
  background: var(--lime);
}

.page-about .about-history__node[open] .about-history__toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-about .about-history__body {
  padding: 0 18px 18px;
  border-top: 2px dashed var(--about-line);
  margin-top: 0;
}

.page-about .about-history__body p {
  padding-top: 16px;
  color: var(--cocoa);
  font-size: 16px;
}

/* ================= 02 服务对象 ================= */

.page-about .about-audience__grid {
  display: grid;
  gap: 22px;
}

.page-about .about-audience__card {
  position: relative;
  padding: 26px 22px 24px;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
}

.page-about .about-audience__card--chain {
  background: linear-gradient(150deg, var(--cream) 0%, var(--about-tint-pomelo) 100%);
}

.page-about .about-audience__card--store {
  background: linear-gradient(150deg, var(--cream) 0%, var(--about-tint-berry) 100%);
}

.page-about .about-audience__card--solo {
  background: linear-gradient(150deg, var(--cream) 0%, var(--about-tint-lime) 100%);
}

.page-about .about-audience__badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--cream);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-about .about-audience__card-title {
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-about .about-audience__card > p {
  color: var(--cocoa);
  font-size: 16px;
  margin-bottom: 18px;
}

.page-about .about-audience__scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  border-top: 2px dashed var(--about-line);
  padding-top: 16px;
}

.page-about .about-audience__scene {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--ink);
}

.page-about .about-audience__scene::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--berry);
}

.page-about .about-audience__card--chain .about-audience__scene::before {
  background: var(--pomelo);
}

.page-about .about-audience__card--solo .about-audience__scene::before {
  background: var(--lime);
}

/* ================= 03 团队 ================= */

.page-about .about-team {
  background: linear-gradient(180deg, rgba(255, 209, 102, 0.22) 0%, rgba(247, 239, 226, 0) 100%);
}

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

.page-about .about-team__copy .about-num {
  margin-bottom: 18px;
}

.page-about .about-team__copy .pie-section__title {
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 14px;
}

.page-about .about-team__copy > .pie-section__lede {
  color: var(--cocoa);
  max-width: 620px;
}

.page-about .about-team__plates {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 28px 0 30px;
}

.page-about .about-team__plate {
  flex: 1 1 120px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 18px 10px;
  border: var(--border);
  border-radius: 50%;
  aspect-ratio: 1 / 1;
  max-width: 148px;
  background: var(--cream);
  box-shadow: 5px 5px 0 var(--ink);
  text-align: center;
}

.page-about .about-team__plate:first-child {
  background: var(--about-tint-pomelo);
}

.page-about .about-team__plate:nth-child(2) {
  background: var(--about-tint-lime);
}

.page-about .about-team__plate:nth-child(3) {
  background: var(--about-tint-crust);
}

.page-about .about-team__plate-num {
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  color: var(--ink);
}

.page-about .about-team__plate-label {
  font-size: 12px;
  color: var(--cocoa);
  letter-spacing: 0.04em;
}

.page-about .about-team__figure {
  margin: 0;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-about .about-team__figure figcaption {
  padding: 12px 20px 14px;
  border-top: 2px solid var(--ink);
  font-size: 14px;
  color: var(--cocoa);
  background: var(--paper-grey);
}

.page-about .about-team__panel {
  margin-top: 26px;
}

.page-about .about-team__panel .pie-panel__body p {
  color: var(--cocoa);
  font-size: 16px;
}

.page-about .about-team__panel .pie-panel__body p + p {
  margin-top: 12px;
}

/* ================= 04 覆盖 ================= */

.page-about .about-reach__stats {
  display: grid;
  gap: 16px;
  margin-bottom: 30px;
}

.page-about .about-reach__stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px 18px;
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--cream);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-about .about-reach__stat--pomelo {
  background: linear-gradient(160deg, var(--cream) 0%, var(--about-tint-pomelo) 100%);
}

.page-about .about-reach__stat--berry {
  background: linear-gradient(160deg, var(--cream) 0%, var(--about-tint-berry) 100%);
}

.page-about .about-reach__stat--lime {
  background: linear-gradient(160deg, var(--cream) 0%, var(--about-tint-lime) 100%);
}

.page-about .about-reach__stat--crust {
  background: linear-gradient(160deg, var(--cream) 0%, var(--about-tint-crust) 100%);
}

.page-about .about-reach__stat-num {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.05;
  color: var(--ink);
}

.page-about .about-reach__stat-label {
  font-size: 14px;
  color: var(--cocoa);
}

.page-about .about-reach__support {
  display: grid;
  gap: 20px;
  padding: 26px 22px;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--paper-grey);
  box-shadow: var(--shadow-hard);
}

.page-about .about-reach__support-title {
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 10px;
}

.page-about .about-reach__support-copy p {
  color: var(--cocoa);
  font-size: 16px;
}

.page-about .about-reach__support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ================= 05 合作与资质 ================= */

.page-about .about-coop__grid {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .about-coop__item {
  display: grid;
  grid-template-columns: 64px 1fr;
  grid-template-areas:
    "icon title"
    "icon text";
  align-items: center;
  column-gap: 16px;
  row-gap: 6px;
  padding: 20px 20px 20px 18px;
  border: var(--border);
  border-radius: var(--radius-md);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  transition: transform 220ms cubic-bezier(0.34, 1.2, 0.64, 1), background-color 220ms ease;
}

.page-about .about-coop__icon {
  grid-area: icon;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, var(--cream) 0%, var(--cream) 44%, var(--crust) 44%, var(--crust) 100%);
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .about-coop__item:nth-child(2) .about-coop__icon {
  background: radial-gradient(circle at 34% 30%, var(--cream) 0%, var(--cream) 44%, var(--about-tint-berry) 44%, var(--about-tint-berry) 100%);
}

.page-about .about-coop__item:nth-child(3) .about-coop__icon {
  background: radial-gradient(circle at 34% 30%, var(--cream) 0%, var(--cream) 44%, rgba(150, 193, 31, 0.5) 44%, rgba(150, 193, 31, 0.5) 100%);
}

.page-about .about-coop__item-title {
  grid-area: title;
  font-size: 19px;
  font-weight: 900;
}

.page-about .about-coop__reveal {
  grid-area: text;
  font-size: 15px;
  color: var(--cocoa);
}

.page-about .about-coop__figure {
  margin: 0;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-about .about-coop__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-about .about-coop__figure figcaption {
  padding: 12px 20px 14px;
  border-top: 2px solid var(--ink);
  font-size: 14px;
  color: var(--cocoa);
  background: var(--paper-grey);
}

/* ================= 收尾 ================= */

.page-about .about-cta {
  padding: 20px 0 80px;
}

.page-about .about-cta__inner {
  display: grid;
  gap: 24px;
  padding: 34px 26px;
  border: var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(126deg, var(--pomelo) 0%, var(--crust) 46%, var(--about-tint-lime) 100%);
  box-shadow: var(--shadow-hard);
}

.page-about .about-cta__eyebrow {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--ink);
  opacity: 0.72;
  margin-bottom: 8px;
}

.page-about .about-cta__title {
  font-size: 26px;
  font-weight: 900;
  color: var(--ink);
  margin-bottom: 10px;
}

.page-about .about-cta__text {
  color: var(--ink);
  max-width: 620px;
  font-size: 16px;
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ================= 动效 ================= */

.page-about .pie-reveal {
  opacity: 0;
  transform: translateY(14px) rotate(-1.1deg);
  transition: opacity 260ms ease, transform 260ms cubic-bezier(0.34, 1.2, 0.64, 1);
}

.page-about .pie-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ================= 媒体查询 ================= */

@media (min-width: 620px) {
  .page-about .about-section {
    padding: 66px 0;
  }

  .page-about .about-hero__title {
    font-size: 42px;
  }

  .page-about .about-section__head-text .pie-section__title,
  .page-about .about-team__copy .pie-section__title {
    font-size: 32px;
  }

  .page-about .about-section__head {
    grid-template-columns: 62px 1fr;
    align-items: start;
    column-gap: 22px;
  }

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

  .page-about .about-audience__card:nth-child(2) {
    margin-top: 24px;
  }

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

  .page-about .about-reach__support {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

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

  .page-about .about-coop__item:nth-child(2) {
    margin-top: 20px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 40px 34px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 78px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: center;
    gap: 48px;
  }

  .page-about .about-hero__title {
    font-size: 48px;
  }

  .page-about .about-hero::before {
    height: 560px;
    clip-path: polygon(0 0, 100% 0, 100% 72%, 0 100%);
  }

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

  .page-about .about-history__arc {
    display: block;
    position: absolute;
    left: 96px;
    top: 6px;
    bottom: 6px;
    width: 62px;
    height: calc(100% - 12px);
    pointer-events: none;
    z-index: 0;
  }

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

  .page-about .about-history__head {
    grid-template-columns: 118px 1fr 28px;
    gap: 22px;
    padding: 20px 20px 20px 18px;
  }

  .page-about .about-history__head-text {
    padding-left: 10px;
  }

  .page-about .about-history__title {
    font-size: 20px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: start;
    gap: 44px;
  }

  .page-about .about-reach__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-coop__item {
    transition: transform 220ms cubic-bezier(0.34, 1.2, 0.64, 1), background-color 220ms ease;
  }

  .page-about .about-coop__reveal {
    opacity: 0.62;
    transform: translateY(4px);
    transition: opacity 220ms ease, transform 220ms cubic-bezier(0.34, 1.2, 0.64, 1);
  }

  .page-about .about-coop__item:hover,
  .page-about .about-coop__item:focus-within,
  .page-about .about-coop__item:focus {
    transform: translate(-3px, -3px);
    background: var(--cream);
    box-shadow: 9px 9px 0 var(--ink);
    outline: none;
  }

  .page-about .about-coop__item:hover .about-coop__reveal,
  .page-about .about-coop__item:focus-within .about-coop__reveal {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 1100px) {
  .page-about .about-hero__title {
    font-size: 54px;
  }

  .page-about .about-section__head-text .pie-section__title,
  .page-about .about-team__copy .pie-section__title {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .pie-reveal,
  .page-about .about-coop__item,
  .page-about .about-coop__reveal,
  .page-about .about-history__toggle::after {
    transition: none;
  }

  .page-about .pie-reveal {
    opacity: 1;
    transform: none;
  }
}