.page-about {
  --ab-rail: rgba(53, 242, 224, 0.16);
  --ab-rail-soft: rgba(138, 92, 255, 0.12);
  --ab-panel: rgba(14, 20, 32, 0.72);
  --ab-panel-solid: rgba(14, 20, 32, 0.94);
  --ab-cut: 14px;
  background: var(--ink);
  color: var(--mist);
  overflow-x: clip;
}

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

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4.5vw, 48px) 0 clamp(64px, 9vw, 118px);
  background:
    radial-gradient(120% 82% at 88% 0%, rgba(138, 92, 255, 0.22), transparent 58%),
    radial-gradient(92% 72% at 4% 100%, rgba(53, 242, 224, 0.16), transparent 62%),
    var(--ink);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -38%;
  width: 62%;
  aspect-ratio: 1 / 1;
  background: linear-gradient(140deg, rgba(53, 242, 224, 0.18), rgba(138, 92, 255, 0.08) 58%, transparent);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 60%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4.5vw, 52px);
  margin-top: clamp(22px, 3.6vw, 44px);
}

.page-about .about-hero__lead h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.8vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 14px 0 18px;
  color: var(--mist);
  text-shadow: 2px 0 0 rgba(53, 242, 224, 0.5), -2px 0 0 rgba(138, 92, 255, 0.4);
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 0.9vw + 13.5px, 19px);
  line-height: 1.75;
  color: var(--cyan-mist);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-rail);
  border: 1px solid var(--ab-rail);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  overflow: hidden;
}

.page-about .about-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 104px;
  padding: 18px 16px;
  background: var(--ink-2);
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 30px);
  letter-spacing: 0.01em;
  color: var(--lime);
}

.page-about .about-hero__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

/* ============ 通用轴向条 ============ */
.page-about .about-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 34px);
}

.page-about .about-band__body {
  min-width: 0;
}

.page-about .about-band__body .section-title {
  margin-top: 0;
}

.page-about .about-band__body > .lead {
  margin-top: 12px;
}

/* ============ 我们从哪里开始 ============ */
.page-about .about-origin__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  margin-top: 26px;
}

.page-about .about-origin__board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-self: start;
  padding: 18px;
  background: var(--ab-panel);
  border: 1px solid var(--ab-rail);
  clip-path: polygon(0 0, calc(100% - var(--ab-cut)) 0, 100% var(--ab-cut), 100% 100%, var(--ab-cut) 100%, 0 calc(100% - var(--ab-cut)));
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 10px;
  border-left: 2px solid var(--cyan-deep);
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 26px);
  color: var(--cyan);
}

.page-about .about-stat__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

/* ============ 平台现在做什么 ============ */
.page-about .about-lines__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 22px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-line {
  position: relative;
  padding: 26px 22px 24px;
  background: linear-gradient(160deg, rgba(14, 20, 32, 0.94), rgba(7, 8, 13, 0.9));
  border: 1px solid var(--ab-rail);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: border-color 140ms ease, transform 220ms ease;
}

.page-about .about-line:hover {
  border-color: rgba(53, 242, 224, 0.4);
  transform: translateY(-4px);
}

.page-about .about-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 46px;
}

.page-about .about-line--content::before { background: var(--cyan); }
.page-about .about-line--vendor::before { background: var(--violet); }
.page-about .about-line--archive::before { background: var(--coral); }

.page-about .about-line__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .about-line h3 {
  margin: 12px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 1.9vw, 23px);
  line-height: 1.34;
  color: var(--mist);
}

.page-about .about-line p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--cyan-mist);
  opacity: 0.88;
}

.page-about .about-line__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 61, 0.4);
  padding-bottom: 2px;
  transition: color 120ms ease, border-color 120ms ease;
}

.page-about .about-line__link:hover,
.page-about .about-line__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ============ 内容怎么被整理 ============ */
.page-about .about-curate {
  background: linear-gradient(180deg, rgba(14, 20, 32, 0.66), transparent 42%);
}

.page-about .about-curate__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 44px);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-about .about-curate__visual {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-curate__visual .media-frame {
  border: 1px solid var(--ab-rail);
  background: rgba(14, 20, 32, 0.55);
}

.page-about .about-cats {
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-rail);
  border: 1px solid var(--ab-rail);
}

.page-about .about-cat {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 13px;
  background: var(--ink-2);
  font-size: 14px;
  color: var(--cyan-mist);
  transition: background 140ms ease, color 140ms ease;
}

.page-about .about-cat:hover {
  background: rgba(53, 242, 224, 0.1);
  color: var(--mist);
}

.page-about .about-cat__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--violet);
}

/* ============ 编辑与客服团队 ============ */
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 44px);
  margin-top: clamp(24px, 3.5vw, 40px);
}

.page-about .about-team__visual {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-about .about-team__visual .media-frame {
  border: 1px solid var(--ab-rail);
  background: rgba(14, 20, 32, 0.55);
}

.page-about .about-shifts {
  list-style: none;
  margin: 0;
  padding: 14px;
  display: grid;
  gap: 6px;
  background: rgba(14, 20, 32, 0.74);
  border: 1px solid var(--ab-rail);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}

.page-about .about-shift {
  display: grid;
  grid-template-columns: 14px 46px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 9px 6px;
}

.page-about .about-shift__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 107, 74, 0.16);
}

.page-about .about-shift:nth-child(2) .about-shift__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 224, 0.16);
}

.page-about .about-shift:nth-child(3) .about-shift__dot {
  background: var(--violet);
  box-shadow: 0 0 0 3px rgba(138, 92, 255, 0.18);
}

.page-about .about-shift__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray);
}

.page-about .about-shift__val {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan-mist);
}

.page-about .about-team__text a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 61, 0.4);
}

.page-about .about-team__text a:hover,
.page-about .about-team__text a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ============ 版本演进 ============ */
.page-about .about-versions {
  background: linear-gradient(180deg, var(--ink), rgba(14, 20, 32, 0.74));
}

.page-about .about-versions__visual {
  margin: clamp(24px, 3.5vw, 40px) 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--ab-rail);
  background: rgba(7, 8, 13, 0.7);
}

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

.page-about .about-timeline__item {
  position: relative;
  border: 1px solid var(--ab-rail);
  background: rgba(14, 20, 32, 0.6);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: border-color 160ms ease, background 160ms ease;
}

.page-about .about-timeline__item[data-open="true"] {
  border-color: rgba(53, 242, 224, 0.42);
  background: rgba(14, 20, 32, 0.92);
}

.page-about .about-timeline__heading {
  margin: 0;
  font: inherit;
}

.page-about .about-timeline__trigger {
  width: 100%;
  display: grid;
  grid-template-columns: 16px auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: transparent;
  border: 0;
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

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

.page-about .about-timeline__dot {
  width: 12px;
  height: 12px;
  background: var(--coral);
  transition: transform 180ms ease, background 180ms ease;
}

.page-about .about-timeline__item[data-open="true"] .about-timeline__dot {
  background: var(--lime);
  transform: rotate(45deg) scale(1.25);
}

.page-about .about-timeline__coord {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--violet);
}

.page-about .about-timeline__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 19px);
  line-height: 1.4;
  color: var(--mist);
}

.page-about .about-timeline__when {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.page-about .about-timeline__panel .accordion__inner {
  margin: 0 20px;
  padding: 16px 0 20px 32px;
  border-top: 1px solid var(--ab-rail);
  border-left: 2px solid var(--cyan-deep);
  font-size: 15px;
  line-height: 1.78;
  color: var(--cyan-mist);
  opacity: 0.88;
}

.page-about .about-timeline__panel .accordion__inner p {
  margin: 0;
}

/* ============ 合作生态 ============ */
.page-about .about-eco__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(24px, 3.5vw, 38px);
}

.page-about .about-eco__cell {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  background: rgba(14, 20, 32, 0.68);
  border: 1px solid var(--ab-rail);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about .about-eco__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(25px, 3.2vw, 36px);
  letter-spacing: -0.01em;
  color: var(--lime);
}

.page-about .about-eco__label {
  font-size: 14px;
  color: var(--mist);
}

.page-about .about-eco__note {
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--gray);
}

.page-about .about-eco__map {
  position: relative;
  margin-top: clamp(26px, 4vw, 44px);
  min-height: 170px;
  padding: 22px;
  border: 1px solid var(--ab-rail);
  background-color: var(--ink-2);
  background-image:
    radial-gradient(circle, rgba(53, 242, 224, 0.32) 1.1px, transparent 1.7px),
    radial-gradient(38% 60% at 30% 42%, rgba(255, 107, 74, 0.22), transparent 70%),
    radial-gradient(34% 52% at 64% 58%, rgba(138, 92, 255, 0.22), transparent 70%);
  background-size: 22px 22px, 100% 100%, 100% 100%;
  background-repeat: repeat, no-repeat, no-repeat;
  display: flex;
  align-items: flex-end;
}

.page-about .about-eco__map-cap {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--gray);
}

/* ============ 下一步入口 ============ */
.page-about .about-cta {
  padding-bottom: clamp(72px, 9vw, 120px);
}

.page-about .about-cta__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(26px, 4vw, 44px);
  background:
    linear-gradient(120deg, rgba(53, 242, 224, 0.12), rgba(138, 92, 255, 0.1) 52%, rgba(255, 107, 74, 0.08)),
    var(--ink-2);
  border: 1px solid rgba(53, 242, 224, 0.28);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-about .about-cta__text h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  color: var(--mist);
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--cyan-mist);
  opacity: 0.9;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: center;
}

/* ============ 动效 ============ */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-about .about-line:hover {
    transform: none;
  }
}

/* ============ 中屏 ============ */
@media (min-width: 700px) {
  .page-about .about-hero__stats li {
    padding: 22px 20px;
  }

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

  .page-about .about-cta__actions {
    flex-wrap: nowrap;
  }
}

/* ============ 桌面轴向布局 ============ */
@media (min-width: 900px) {
  .page-about .about-band {
    position: relative;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 52px);
  }

  .page-about .about-band__rail {
    position: relative;
    padding-top: 4px;
  }

  .page-about .about-band::before {
    content: "";
    position: absolute;
    left: 3px;
    top: 44px;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--ab-rail), var(--ab-rail-soft) 55%, transparent);
    pointer-events: none;
  }

  .page-about .about-origin__cols {
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
    align-items: start;
  }

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

  .page-about .about-lines__list > .about-line:nth-child(2) {
    margin-top: 32px;
  }

  .page-about .about-lines__list > .about-line:nth-child(3) {
    margin-top: 64px;
  }

  .page-about .about-curate__split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

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

  .page-about .about-cta__panel {
    grid-template-columns: minmax(0, 1.15fr) auto;
    align-items: center;
  }
}

/* ============ 宽屏 ============ */
@media (min-width: 1200px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    align-items: end;
  }

  .page-about .about-origin__cols {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.5fr);
  }
}
<<<END>>>