.page-about {
  --about-idx: 132px;
  --about-line: 1px solid rgba(122, 84, 51, 0.35);
}

/* ---------- 骨架：索引栏 + 内容流 ---------- */
.page-about .about-shell {
  display: block;
  padding-bottom: 12px;
}

.page-about .about-index {
  position: sticky;
  top: 56px;
  z-index: 6;
  margin: 0 0 20px;
  padding: 10px 0 8px;
  background: var(--paper);
  border-bottom: var(--edge-soft);
}

.page-about .about-index__cap {
  display: none;
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--kiwi-skin);
}

.page-about .about-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-about .about-index__list::-webkit-scrollbar {
  display: none;
}

.page-about .about-index__item {
  flex: 0 0 auto;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border: var(--edge-soft);
  background: var(--paper-card);
  color: var(--kiwi-seed);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  background: var(--mist);
  border-color: var(--kiwi-flesh);
  outline: none;
}

.page-about .about-index__no {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--kiwi-flesh-deep);
}

.page-about .about-index__top {
  display: none;
  margin-top: 16px;
  padding-left: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--kiwi-skin);
  text-decoration: none;
  border-left: 2px solid var(--neon);
}

.page-about .about-index__top:hover,
.page-about .about-index__top:focus-visible {
  color: var(--kiwi-flesh-deep);
  outline: none;
}

.page-about .about-sec {
  scroll-margin-top: 76px;
}

/* ---------- 档案盒面板 ---------- */
.page-about .panel {
  position: relative;
  margin: 0 0 32px;
  padding: 38px 18px 26px;
  background-color: var(--paper-card);
  background-image: radial-gradient(rgba(122, 84, 51, 0.045) 1px, transparent 1px);
  background-size: 7px 7px;
  overflow: hidden;
}

.page-about .about-head {
  margin: 0 0 20px;
}

.page-about .about-head__title {
  margin: 0 0 12px;
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--kiwi-seed);
}

.page-about .about-head__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(20, 19, 16, 0.82);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero__grid {
  display: grid;
  gap: 20px;
}

.page-about .about-hero__title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: clamp(28px, 6.4vw, 46px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--kiwi-seed);
}

.page-about .about-hero__lead {
  margin: 0 0 14px;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.78;
  color: rgba(20, 19, 16, 0.86);
}

.page-about .about-hero__copy-text {
  margin: 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(20, 19, 16, 0.72);
}

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

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin: 26px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: var(--edge-soft);
}

.page-about .about-stat__num {
  display: block;
  padding-left: 9px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.6vw, 38px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--kiwi-seed);
  border-left: 3px solid var(--neon);
}

.page-about .about-stat__txt {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--kiwi-skin);
}

/* ---------- 图片通用 ---------- */
.page-about .figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

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

/* ---------- 流程条 ---------- */
.page-about .about-flow__steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin: 0 0 22px;
  padding: 12px 14px;
  background: var(--paper-grey);
  border-left: 4px solid var(--neon);
}

.page-about .about-step {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--kiwi-seed);
}

.page-about .about-step__arrow {
  font-size: 12px;
  color: var(--kiwi-skin);
}

/* ---------- 两条主线 ---------- */
.page-about .about-orchard__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-line {
  position: relative;
  padding: 22px 18px 24px 22px;
  background: var(--paper-grey);
  border: var(--edge);
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: var(--kiwi-flesh);
}

.page-about .about-line--alt::before {
  background: var(--neon);
}

.page-about .about-line__no {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--kiwi-skin);
}

.page-about .about-line__title {
  margin: 0 0 9px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--kiwi-seed);
}

.page-about .about-line__copy {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.78;
  color: rgba(20, 19, 16, 0.8);
}

.page-about .about-orchard__figure {
  margin-top: 20px;
}

.page-about .about-orchard__note {
  margin: 22px 0 0;
  padding: 16px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(20, 19, 16, 0.84);
  background: linear-gradient(90deg, var(--mist) 0%, rgba(207, 227, 194, 0.1) 100%);
  border-left: 4px solid var(--kiwi-flesh);
}

/* ---------- 团队四张桌子 ---------- */
.page-about .about-crew__grid {
  display: grid;
  gap: 22px;
  margin-top: 4px;
}

.page-about .about-desk {
  margin-bottom: 12px;
  background: var(--paper-card);
  border: var(--edge);
  box-shadow: var(--shadow-paper);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease);
}

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

.page-about .about-desk[open] {
  border-left: 5px solid var(--kiwi-flesh);
}

.page-about .about-desk__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--kiwi-seed);
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-desk__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--kiwi-flesh-deep);
}

.page-about .about-desk[open] .about-desk__sum::after {
  content: "–";
}

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

.page-about .about-desk__no {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--kiwi-skin);
}

.page-about .about-desk__name {
  letter-spacing: -0.01em;
}

.page-about .about-desk__body {
  padding: 0 16px 18px 44px;
  border-top: var(--edge-soft);
  margin-top: 2px;
  padding-top: 14px;
}

.page-about .about-desk__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(20, 19, 16, 0.8);
}

.page-about .about-desk[open] .about-desk__body {
  animation: about-desk-in 240ms var(--ease) both;
}

@keyframes about-desk-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* ---------- 赛季节点时间轴 ---------- */
.page-about .about-tl {
  display: flex;
  margin: 6px 0 0;
  padding: 0 0 14px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}

.page-about .about-tl__node {
  position: relative;
  flex: 0 0 78%;
  min-width: 230px;
  box-sizing: border-box;
  padding: 24px 20px 8px 0;
  border-top: 2px solid var(--paper-grey);
  scroll-snap-align: start;
}

.page-about .about-tl__node:focus-visible {
  outline: none;
}

.page-about .about-tl__dot {
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--kiwi-skin);
  box-shadow: 0 0 0 3px var(--paper-card);
}

.page-about .about-tl__node--grow .about-tl__dot {
  background: var(--kiwi-flesh);
}

.page-about .about-tl__node--now .about-tl__dot {
  background: var(--kiwi-flesh-deep);
  box-shadow: 0 0 0 3px var(--paper-card), 0 0 0 6px rgba(47, 216, 200, 0.45);
}

.page-about .about-tl__phase {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--kiwi-flesh-deep);
}

.page-about .about-tl__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--kiwi-seed);
}

.page-about .about-tl__txt {
  margin: 0 0 12px;
  font-size: 14.2px;
  line-height: 1.76;
  color: rgba(20, 19, 16, 0.78);
}

.page-about .about-tl__pop {
  display: inline-block;
  margin: 0;
  padding: 4px 9px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--kiwi-seed);
  background: var(--mist);
  border: var(--edge-soft);
  opacity: 1;
  transform: none;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  gap: 14px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-partners__item {
  padding: 18px 18px 20px;
  background: var(--paper-grey);
  border-top: 3px solid var(--kiwi-flesh-deep);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease);
}

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

.page-about .about-partners__tag {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 8px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--neon);
  background: var(--ink-green);
}

.page-about .about-partners__name {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--kiwi-seed);
}

.page-about .about-partners__txt {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.76;
  color: rgba(20, 19, 16, 0.8);
}

/* ---------- 收口 ---------- */
.page-about .about-join {
  position: relative;
  margin-bottom: 32px;
  padding: 40px 20px 34px;
  color: var(--paper);
  background-color: var(--ink-green);
  background-image: repeating-linear-gradient(
    115deg,
    rgba(47, 216, 200, 0.07) 0 1px,
    transparent 1px 13px
  );
}

.page-about .about-join__kicker {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-about .about-join__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 5.2vw, 36px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-join__lead {
  max-width: 46ch;
  margin: 0 0 24px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(247, 242, 229, 0.86);
}

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

.page-about .about-join__note {
  margin: 0;
  padding-top: 18px;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(247, 242, 229, 0.72);
  border-top: 1px dashed rgba(247, 242, 229, 0.28);
}

.page-about .about-join__note a {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-join__note a:hover,
.page-about .about-join__note a:focus-visible {
  color: var(--paper);
}

/* ---------- 平板 ---------- */
@media (min-width: 680px) {
  .page-about .panel {
    padding: 44px 30px 32px;
  }

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

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

  .page-about .about-tl__node {
    flex: 0 0 52%;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 30px;
    align-items: start;
  }

  .page-about .about-hero__figure {
    transform: rotate(1.1deg);
  }

  .page-about .about-crew__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 28px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-shell {
    display: grid;
    grid-template-columns: var(--about-idx) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 28px;
    margin: 0;
    padding: 0;
    background: transparent;
    border-bottom: 0;
  }

  .page-about .about-index__cap {
    display: block;
  }

  .page-about .about-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

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

  .page-about .about-index__link {
    width: 100%;
    padding: 9px 8px 9px 10px;
    background: transparent;
    border: 0;
    border-left: 2px solid rgba(122, 84, 51, 0.25);
  }

  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    background: var(--mist);
    border-left-color: var(--kiwi-flesh);
  }

  .page-about .about-index__top {
    display: block;
  }

  .page-about .about-sec {
    scroll-margin-top: 24px;
  }

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

  .page-about .about-tl__node {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (min-width: 1080px) {
  .page-about .panel {
    padding: 48px 40px 36px;
  }

  .page-about .about-tl__node {
    padding-right: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: 0ms !important;
    transition-duration: 0ms !important;
  }
}