.page-about {
  --ab-radius: 18px;
  background: var(--qg-paper);
  color: var(--qg-ink);
}

/* ---------- 面包屑 ---------- */
.page-about .ab-crumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
  padding-bottom: clamp(4px, 1vw, 10px);
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  padding: clamp(8px, 1.6vw, 18px) 0 clamp(30px, 5vw, 56px);
  background-image:
    radial-gradient(62% 72% at 4% 0%, rgba(76, 122, 52, 0.1), transparent 62%),
    radial-gradient(72% 82% at 98% 4%, rgba(232, 93, 42, 0.14), transparent 58%);
}

.page-about .ab-hero__inner {
  display: grid;
  gap: clamp(16px, 2.6vw, 26px);
}

.page-about .ab-hero__title {
  margin: 0;
  font-family: var(--qg-font-head);
  font-weight: 800;
  font-size: clamp(2.25rem, 7.4vw, 5.1rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--qg-inkgreen);
}

.page-about .ab-hero__accent {
  color: var(--qg-ember);
  background: linear-gradient(to top, var(--qg-apricot) 0.26em, transparent 0.26em);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  padding: 0 0.06em;
}

.page-about .ab-hero__lead {
  margin: 0;
  max-width: 34em;
  padding-left: clamp(12px, 2vw, 20px);
  border-left: 3px solid var(--qg-leaf);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.85;
  color: var(--qg-ink);
}

@media (min-width: 880px) {
  .page-about .ab-hero__inner {
    grid-template-columns: minmax(0, 1.36fr) minmax(0, 0.88fr);
    align-items: end;
    column-gap: clamp(24px, 4vw, 56px);
    row-gap: clamp(18px, 2.4vw, 28px);
  }
  .page-about .ab-hero__inner > .qg-kicker {
    grid-column: 1 / -1;
  }
}

.page-about .ab-hero__figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
}

.page-about .ab-hero__figure .qg-figure__media {
  border: 1px solid var(--qg-line-strong);
  border-radius: var(--qg-r-plate);
  box-shadow: var(--qg-shadow-paper);
  overflow: hidden;
  background: linear-gradient(135deg, var(--qg-cream), var(--qg-apricot));
}

.page-about .ab-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 果园的起点 ---------- */
.page-about .ab-origin {
  border-top: 1px solid var(--qg-line);
}

.page-about .ab-origin__inner {
  display: grid;
  gap: clamp(16px, 2.6vw, 32px);
}

.page-about .ab-origin__side {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .ab-origin__no {
  font-family: var(--qg-font-head);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: var(--qg-fruit);
}

@supports (-webkit-text-stroke: 1px currentColor) {
  .page-about .ab-origin__no {
    color: transparent;
    -webkit-text-stroke: 1.6px var(--qg-fruit);
  }
}

.page-about .ab-origin__label {
  font-family: var(--qg-font-hand);
  font-size: 0.94rem;
  letter-spacing: 0.08em;
  color: var(--qg-pit);
}

.page-about .ab-origin__body h2 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--qg-font-head);
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  line-height: 1.25;
  color: var(--qg-inkgreen);
}

.page-about .ab-origin__body p {
  margin: 0 0 1em;
  max-width: 40em;
  line-height: 1.85;
}

.page-about .ab-origin__quote {
  margin: clamp(16px, 2.5vw, 24px) 0 0;
  padding: clamp(14px, 2.4vw, 20px) clamp(16px, 2.6vw, 24px);
  background: var(--qg-cream);
  border-left: 4px solid var(--qg-fruit);
  border-radius: 0 12px 12px 0;
  font-family: var(--qg-font-hand);
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  line-height: 1.7;
  color: var(--qg-pit);
}

@media (min-width: 860px) {
  .page-about .ab-origin__inner {
    grid-template-columns: minmax(0, 0.4fr) minmax(0, 1fr);
    column-gap: clamp(28px, 5vw, 72px);
    align-items: start;
  }
}

/* ---------- 横向主题带 ---------- */
.page-about .ab-ribbon {
  position: relative;
  margin: clamp(30px, 5vw, 60px) 0;
  padding: clamp(20px, 3.4vw, 34px) 0;
  background: linear-gradient(102deg, var(--qg-fruit), var(--qg-ember));
  color: var(--qg-paper);
  overflow: hidden;
}

.page-about .ab-ribbon--leaf {
  background: linear-gradient(102deg, var(--qg-leaf), var(--qg-inkgreen));
}

.page-about .ab-ribbon::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(251, 247, 239, 0.13) 0 2px, transparent 2px 26px);
  pointer-events: none;
}

.page-about .ab-ribbon__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px clamp(14px, 3vw, 28px);
}

.page-about .ab-ribbon__mark {
  padding: 4px 13px;
  border: 1px solid rgba(251, 247, 239, 0.62);
  border-radius: 999px;
  font-family: var(--qg-font-hand);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  white-space: nowrap;
}

.page-about .ab-ribbon__text {
  margin: 0;
  font-family: var(--qg-font-head);
  font-weight: 700;
  font-size: clamp(1.02rem, 2.2vw, 1.4rem);
  line-height: 1.42;
}

/* ---------- 版本年轮 ---------- */
.page-about .ab-years__inner {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  min-width: 0;
}

.page-about .ab-years__title {
  margin: 8px 0 clamp(12px, 2vw, 18px);
  font-family: var(--qg-font-head);
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  line-height: 1.3;
  color: var(--qg-inkgreen);
}

.page-about .ab-index {
  list-style: none;
  margin: clamp(12px, 2vw, 18px) 0 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .ab-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--qg-line-strong);
  border-radius: 999px;
  background: var(--qg-paper);
  color: var(--qg-pit);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--qg-ease), background-color 0.25s var(--qg-ease), border-color 0.25s var(--qg-ease);
}

.page-about .ab-index__link:hover,
.page-about .ab-index__link:focus-visible {
  background: var(--qg-cream);
  border-color: var(--qg-fruit);
  color: var(--qg-inkgreen);
  outline: 2px solid var(--qg-fruit);
  outline-offset: 2px;
}

.page-about .ab-index__no {
  font-family: var(--qg-font-head);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.page-about .ab-index__label {
  font-size: 0.88rem;
}

@media (min-width: 900px) {
  .page-about .ab-years__inner {
    grid-template-columns: minmax(0, 248px) minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(32px, 5vw, 72px);
  }
  .page-about .ab-years__index {
    position: sticky;
    top: 108px;
  }
  .page-about .ab-index {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding: 0 0 0 14px;
    border-left: 2px solid var(--qg-line);
  }
  .page-about .ab-index__link {
    margin-left: -16px;
    padding: 9px 12px 9px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    background: transparent;
  }
  .page-about .ab-index__link:hover,
  .page-about .ab-index__link:focus-visible {
    padding-left: 18px;
    border-left-color: var(--qg-fruit);
  }
}

.page-about .ab-years__body {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  min-width: 0;
}

.page-about .ab-node {
  position: relative;
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--qg-paper);
  border: 1px solid var(--qg-line-strong);
  border-radius: var(--qg-r-plate);
  scroll-margin-top: 122px;
  transition: border-color 0.3s var(--qg-ease), box-shadow 0.3s var(--qg-ease), transform 0.3s var(--qg-ease), background-color 0.3s var(--qg-ease);
}

.page-about .ab-node:hover {
  transform: translateY(-2px);
  box-shadow: var(--qg-shadow-lift);
}

.page-about .ab-node:target {
  background: var(--qg-cream);
  border-color: var(--qg-fruit);
  box-shadow: var(--qg-shadow-paper);
}

.page-about .ab-node--v4 {
  border-color: var(--qg-fruit);
}

.page-about .ab-node__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.page-about .ab-node__no {
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--qg-inkgreen);
  color: var(--qg-paper);
  font-family: var(--qg-font-head);
  font-weight: 800;
  font-size: 0.86rem;
  letter-spacing: 0.08em;
}

.page-about .ab-node--v4 .ab-node__no {
  background: var(--qg-fruit);
  color: var(--qg-ink);
}

.page-about .ab-node__title {
  margin: 0;
  font-family: var(--qg-font-head);
  font-size: clamp(1.08rem, 1.9vw, 1.3rem);
  line-height: 1.35;
  color: var(--qg-inkgreen);
}

.page-about .ab-node p {
  margin: 0;
  max-width: 42em;
  line-height: 1.8;
}

.page-about .ab-node__note {
  margin-top: 2px;
  font-family: var(--qg-font-hand);
  font-size: 0.9rem;
  color: var(--qg-pit);
  transition: opacity 0.3s var(--qg-ease), transform 0.3s var(--qg-ease);
}

@media (min-width: 900px) {
  .page-about .ab-node__note {
    opacity: 0;
    transform: translateY(4px);
  }
  .page-about .ab-node:hover .ab-node__note,
  .page-about .ab-node:focus-within .ab-node__note,
  .page-about .ab-node:target .ab-node__note {
    opacity: 1;
    transform: none;
  }
}

.page-about .ab-ring {
  margin: clamp(18px, 3vw, 28px) 0 0;
}

.page-about .ab-ring .qg-figure__media {
  border: 1px solid var(--qg-line-strong);
  border-radius: var(--qg-r-plate);
  overflow: hidden;
  background: var(--qg-cream);
}

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

/* ---------- 团队 ---------- */
.page-about .ab-team__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  min-width: 0;
}

.page-about .ab-team__title,
.page-about .ab-method__title,
.page-about .ab-clients__title,
.page-about .ab-partners__title {
  margin: 8px 0 clamp(14px, 2vw, 18px);
  font-family: var(--qg-font-head);
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  line-height: 1.26;
  color: var(--qg-inkgreen);
}

.page-about .ab-team__copy p {
  margin: 0 0 1em;
  max-width: 40em;
  line-height: 1.85;
}

.page-about .ab-roles {
  list-style: none;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .ab-role {
  padding: 10px 12px 10px 14px;
  border-left: 3px solid var(--qg-leaf);
  border-radius: 0 10px 10px 0;
  background: rgba(251, 247, 239, 0.62);
}

.page-about .ab-role__name {
  display: block;
  font-family: var(--qg-font-head);
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--qg-inkgreen);
}

.page-about .ab-role__desc {
  display: block;
  margin-top: 3px;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--qg-pit);
}

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

.page-about .ab-team__figure .qg-figure__media {
  border: 1px solid var(--qg-line-strong);
  border-radius: var(--qg-r-plate);
  box-shadow: var(--qg-shadow-paper);
  overflow: hidden;
}

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

@media (min-width: 620px) {
  .page-about .ab-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-team__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
    align-items: start;
    column-gap: clamp(32px, 5vw, 64px);
  }
}

/* ---------- 服务方法 ---------- */
.page-about .ab-steps {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .ab-step {
  padding: clamp(14px, 2vw, 18px);
  background: var(--qg-paper);
  border: 1px solid var(--qg-line-strong);
  border-radius: 16px;
}

.page-about .ab-step__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--qg-font-head);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--qg-fruit);
}

.page-about .ab-step__name {
  margin: 0 0 6px;
  font-family: var(--qg-font-head);
  font-size: 1.02rem;
  color: var(--qg-inkgreen);
}

.page-about .ab-step p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--qg-ink);
}

.page-about .ab-method__foot {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: clamp(14px, 2vw, 20px);
  border-top: 1px solid var(--qg-line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--qg-pit);
}

@media (min-width: 780px) {
  .page-about .ab-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-bottom: 26px;
  }
  .page-about .ab-step:nth-child(even) {
    transform: translateY(24px);
  }
}

/* ---------- 客户与场景 ---------- */
.page-about .ab-clients {
  color: var(--qg-paper);
}

.page-about .ab-clients .ab-clients__title {
  color: var(--qg-paper);
}

.page-about .ab-clients__text {
  margin: 0;
  max-width: 46em;
  line-height: 1.85;
  color: var(--qg-on-dark);
}

.page-about .ab-stats {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .ab-stat {
  padding-top: 14px;
  border-top: 2px solid var(--qg-fruit);
}

.page-about .ab-stat__num {
  display: block;
  font-family: var(--qg-font-head);
  font-size: clamp(2rem, 4.4vw, 3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--qg-fruit);
}

.page-about .ab-stat__unit {
  margin-left: 4px;
  font-size: 0.5em;
  color: var(--qg-apricot);
}

.page-about .ab-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--qg-on-dark);
}

.page-about .ab-scenes {
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .ab-scene {
  padding: 6px 14px;
  border: 1px solid rgba(251, 247, 239, 0.42);
  border-radius: 999px;
  font-size: 0.88rem;
  color: var(--qg-on-dark);
}

@media (min-width: 700px) {
  .page-about .ab-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 伙伴 ---------- */
.page-about .ab-partners__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  min-width: 0;
}

.page-about .ab-partners__inner p {
  margin: 0 0 1em;
  max-width: 40em;
  line-height: 1.85;
}

.page-about .ab-partners__inner a {
  color: var(--qg-inkgreen);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .ab-partners__inner a:hover {
  color: var(--qg-fruit);
}

.page-about .ab-paper {
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--qg-cream);
  border: 1px solid var(--qg-line-strong);
  border-radius: var(--qg-r-plate);
  box-shadow: var(--qg-shadow-paper);
  align-self: start;
}

.page-about .ab-paper__title {
  margin: 0 0 12px;
  font-family: var(--qg-font-head);
  font-size: 1.06rem;
  color: var(--qg-inkgreen);
}

.page-about .ab-paper__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .ab-paper__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--qg-ink);
}

.page-about .ab-paper__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--qg-leaf);
}

@media (min-width: 880px) {
  .page-about .ab-partners__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    column-gap: clamp(28px, 5vw, 64px);
    align-items: start;
  }
}

/* ---------- 结尾行动 ---------- */
.page-about .ab-cta {
  padding-block: clamp(36px, 6vw, 68px);
  background: linear-gradient(122deg, var(--qg-cream) 0%, var(--qg-apricot) 100%);
}

.page-about .ab-cta__title {
  margin: 8px 0 10px;
  font-family: var(--qg-font-head);
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  line-height: 1.28;
  color: var(--qg-inkgreen);
}

.page-about .ab-cta__text {
  margin: 0;
  max-width: 38em;
  line-height: 1.8;
  color: var(--qg-ink);
}

.page-about .ab-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 2.6vw, 24px);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-node,
  .page-about .ab-node__note,
  .page-about .ab-index__link {
    transition: none;
  }
  .page-about .ab-node:hover {
    transform: none;
  }
  .page-about .ab-step:nth-child(even) {
    transform: none;
  }
}