/* ================================================================
   品牌介绍页 · page-about
   ================================================================ */

.page-about {
  --about-hair: rgba(10, 11, 13, 0.14);
  --about-rail: 5px;
  background: var(--ink);
  color: var(--mist);
  overflow-x: clip;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-about .zone--mist {
  color: var(--ink);
}

.page-about .section__head {
  max-width: 62ch;
}

.page-about .zone--mist .section__lead {
  color: #4a5260;
}

/* ---------------- 首屏 ---------------- */

.page-about .about-hero {
  padding-block: clamp(22px, 4vw, 44px) clamp(38px, 6vw, 78px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 52px);
  margin-top: clamp(26px, 5vw, 46px);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 10vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--white);
}

.page-about .about-hero__accent {
  display: block;
  color: var(--red);
}

.page-about .about-hero__lead {
  margin: 22px 0 0;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  background:
    linear-gradient(158deg, rgba(224, 27, 46, 0.18), rgba(138, 15, 29, 0) 62%),
    var(--panel);
}

.page-about .about-hero__board::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(35, 38, 46, 0.9) 0 1px,
    transparent 1px 28px
  );
}

.page-about .about-score {
  position: relative;
  z-index: 1;
  padding: clamp(16px, 3vw, 26px) clamp(12px, 2vw, 18px);
  border-right: 1px solid var(--line);
}

.page-about .about-score:last-child {
  border-right: 0;
}

.page-about .about-score__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 7vw, 46px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--red);
}

.page-about .about-score__label {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

/* ---------------- 起点 ---------------- */

.page-about .about-origin {
  display: grid;
  gap: 26px;
  margin-top: clamp(22px, 4vw, 38px);
}

.page-about .about-origin__text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-about .about-origin__text p:first-child {
  margin-top: 0;
  color: var(--mist);
  font-size: 17px;
}

.page-about .about-origin__aside {
  border-top: 2px solid var(--red);
  padding-top: 18px;
}

.page-about .about-origin__year {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(38px, 11vw, 64px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--red);
  margin: 0;
}

.page-about .about-origin__note {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------------- 栏目体系 ---------------- */

.page-about .about-tracks {
  display: grid;
  gap: 0;
  margin-top: clamp(22px, 4vw, 38px);
  border-top: 1px solid var(--line);
}

.page-about .about-track {
  padding: 22px 0 24px 18px;
  border-left: 2px solid var(--blue);
  border-bottom: 1px solid var(--line);
}

.page-about .about-track__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--blue);
}

.page-about .about-track__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-track__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}

.page-about .about-track__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-track__meta li {
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------------- 编辑团队 ---------------- */

.page-about .about-team {
  display: grid;
  gap: 26px;
  margin-top: clamp(22px, 4vw, 38px);
}

.page-about .about-team__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--about-hair);
  background: #e3e7ef;
}

.page-about .about-team__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(202deg, rgba(47, 107, 255, 0.2), rgba(10, 11, 13, 0.28) 72%);
}

.page-about .about-team__figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-about .about-team__caption {
  position: relative;
  z-index: 1;
  display: block;
  padding: 12px 14px;
  background: var(--panel);
  color: var(--slate);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

.page-about .about-team__body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: #333a45;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-team__stat {
  padding: 16px 12px 6px 0;
  border-right: 1px solid var(--about-hair);
}

.page-about .about-team__stat:last-child {
  border-right: 0;
}

.page-about .about-team__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 6vw, 34px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--red);
}

.page-about .about-team__stat-label {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: #5a6272;
}

/* ---------------- 版本演进 ---------------- */

.page-about .about-banner {
  position: relative;
  margin: clamp(22px, 4vw, 38px) 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-banner img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-about .about-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(224, 27, 46, 0.34), rgba(10, 11, 13, 0.05) 58%);
}

.page-about .about-banner .media__caption {
  position: relative;
  z-index: 1;
  display: block;
  padding: 12px 16px;
  background: var(--panel);
  color: var(--slate);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.page-about .about-timeline {
  position: relative;
  margin: clamp(26px, 5vw, 48px) 0 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: var(--about-rail);
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--red), var(--blue) 58%, var(--line));
}

.page-about .about-version {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 42px);
}

.page-about .about-version::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 5px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--red);
  border-radius: 50%;
  background: var(--ink);
}

.page-about .about-version:target::before {
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(224, 27, 46, 0.2);
}

.page-about .about-version:target .about-version__title {
  color: var(--red);
}

.page-about .about-version__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-version__tag {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--blue);
}

.page-about .about-version__stage {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
  padding: 3px 8px;
  border: 1px solid var(--line);
}

.page-about .about-version__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 5vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-about .about-version__desc {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------------- 合作生态 ---------------- */

.page-about .about-eco__filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: clamp(20px, 3.5vw, 34px);
}

.page-about .about-eco__filter .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .about-eco__filter .filter-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate);
}

.page-about .about-eco {
  display: grid;
  gap: 26px;
  margin-top: clamp(20px, 3.5vw, 32px);
}

.page-about .about-eco__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-eco__item {
  padding: 18px 0 20px;
  border-bottom: 1px solid var(--line);
}

.page-about .about-eco__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-eco__desc {
  margin: 9px 0 14px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
}

.page-about .about-eco__item .chip {
  display: inline-block;
}

.page-about .about-eco__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-eco__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-eco__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(160deg, rgba(47, 107, 255, 0.22), rgba(10, 11, 13, 0.42));
}

/* ---------------- 荣誉 ---------------- */

.page-about .about-honors {
  margin-top: clamp(30px, 5vw, 52px);
  padding-top: clamp(22px, 3.5vw, 34px);
  border-top: 1px solid var(--line);
}

.page-about .about-honors__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--white);
}

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

.page-about .about-honor {
  border-left: 2px solid var(--green);
  padding: 4px 0 4px 16px;
}

.page-about .about-honor .chip {
  display: inline-block;
}

.page-about .about-honor__note {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  transition: max-height 0.35s var(--ease), opacity 0.25s var(--ease), margin-top 0.25s var(--ease);
}

.page-about .about-honor:hover .about-honor__note,
.page-about .about-honor:focus-within .about-honor__note,
.page-about .about-honor:focus-visible .about-honor__note {
  max-height: 140px;
  margin-top: 12px;
  opacity: 1;
}

.page-about .about-honor:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

/* ---------------- 服务范围 ---------------- */

.page-about .about-commit {
  padding-block: clamp(34px, 6vw, 74px);
}

.page-about .about-commit__lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--slate);
}

.page-about .about-commit__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-commit__stat {
  padding: 20px 12px 20px 0;
  border-right: 1px solid var(--line);
}

.page-about .about-commit__stat:last-child {
  border-right: 0;
}

.page-about .about-commit__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 7vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--red);
}

.page-about .about-commit__label {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-about .about-commit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(30px, 5vw, 56px);
}

/* ---------------- 响应式 ---------------- */

@media (min-width: 720px) {
  .page-about .about-eco__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 40px);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(40px, 6vw, 80px);
  }

  .page-about .about-origin {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.75fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }

  .page-about .about-tracks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-bottom: 1px solid var(--line);
  }

  .page-about .about-track {
    padding: 30px 22px 34px;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-about .about-track:nth-child(2) {
    padding-top: 62px;
  }

  .page-about .about-track:nth-child(3) {
    padding-top: 42px;
  }

  .page-about .about-track:nth-child(4) {
    padding-top: 80px;
    border-right: 0;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-about .about-timeline {
    padding-left: 34px;
  }

  .page-about .about-version::before {
    left: -34px;
  }

  .page-about .about-eco {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.7fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

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

  .page-about .about-honors__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .page-about .about-commit {
    padding-block: clamp(56px, 8vw, 110px);
  }
}

@media (min-width: 1180px) {
  .page-about .about-hero__title {
    font-size: 92px;
  }

  .page-about .about-origin__year {
    font-size: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-honor__note {
    transition: none;
  }

  .page-about .about-honor:hover .about-honor__note,
  .page-about .about-honor:focus-within .about-honor__note,
  .page-about .about-honor:focus-visible .about-honor__note {
    max-height: 140px;
    margin-top: 12px;
    opacity: 1;
  }
}