/* ===== 品牌愿景 /mission/ 页面专属样式 ===== */

.page-about .about-hero {
  padding-block: clamp(18px, 3vw, 34px) clamp(26px, 4vw, 46px);
}

.page-about .about-hero__frame {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 30px);
  padding: clamp(22px, 4.4vw, 52px);
  border: var(--border-line);
  border-radius: var(--radius-lg);
  background-color: var(--ink-800);
  background-image:
    radial-gradient(120% 100% at 0% 0%, rgba(53, 231, 214, 0.18), transparent 58%),
    radial-gradient(100% 90% at 100% 112%, rgba(138, 107, 255, 0.22), transparent 62%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-about .about-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(to right, rgba(20, 48, 74, 0.65) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 48, 74, 0.65) 1px, transparent 1px);
  background-size: 68px 68px;
  opacity: 0.6;
  -webkit-mask-image: radial-gradient(125% 105% at 28% 18%, #000 18%, transparent 84%);
  mask-image: radial-gradient(125% 105% at 28% 18%, #000 18%, transparent 84%);
  pointer-events: none;
}

.page-about .about-hero__lead {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__kicker {
  margin: 0;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.78;
  color: var(--paper);
}

.page-about .about-hero__tags {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-self: end;
}

.page-about .about-figures {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-about .about-figure {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 13px 15px;
  border: var(--border-line);
  border-radius: var(--radius-md);
  background: rgba(7, 19, 31, 0.72);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .about-figure:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-about .about-figure__num {
  font-family: var(--font-label);
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-about .about-figure:nth-child(2) .about-figure__num {
  color: var(--violet);
}

.page-about .about-figure:nth-child(3) .about-figure__num {
  color: var(--gold);
}

.page-about .about-figure:nth-child(4) .about-figure__num {
  color: var(--mint);
}

.page-about .about-figure__key {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper-dim);
}

@media (min-width: 960px) {
  .page-about .about-hero__frame {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    grid-template-areas:
      "lead tags"
      "lead figures";
    align-items: start;
    column-gap: clamp(28px, 4vw, 60px);
    row-gap: 20px;
  }

  .page-about .about-hero__lead {
    grid-area: lead;
    align-self: center;
  }

  .page-about .about-hero__tags {
    grid-area: tags;
    justify-content: flex-end;
  }

  .page-about .about-figures {
    grid-area: figures;
  }
}

/* ---------- 主体双栏 ---------- */

.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
  padding-block: clamp(28px, 5vw, 60px) clamp(20px, 3vw, 36px);
}

@media (min-width: 1040px) {
  .page-about .about-body {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: clamp(32px, 4.4vw, 76px);
    align-items: start;
  }

  .page-about .about-index {
    position: sticky;
    top: 112px;
  }
}

.page-about .about-index__label {
  margin: 0 0 12px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 6px;
}

.page-about .about-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 12px;
  border: var(--border-line);
  border-radius: var(--radius-pill);
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper-dim);
  text-decoration: none;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
  background: rgba(53, 231, 214, 0.08);
}

.page-about .about-index__num {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

@media (min-width: 1040px) {
  .page-about .about-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    border-left: 1px solid var(--ink-700);
    padding-left: 0;
  }

  .page-about .about-index__link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 8px 10px;
  }

  .page-about .about-index__link:hover,
  .page-about .about-index__link:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(53, 231, 214, 0.08);
  }
}

.page-about .about-flow {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* ---------- 章节 ---------- */

.page-about .about-section {
  scroll-margin-top: 124px;
  padding-block: clamp(24px, 4vw, 46px);
}

.page-about .about-section + .about-section {
  border-top: 1px dashed var(--ink-700);
}

.page-about .about-section:first-child {
  padding-top: clamp(8px, 1.6vw, 18px);
}

.page-about .about-section__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
  margin-bottom: clamp(14px, 2.2vw, 22px);
}

.page-about .about-section__num {
  flex: none;
  font-family: var(--font-label);
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(53, 231, 214, 0.18);
  -webkit-text-stroke: 1px rgba(53, 231, 214, 0.45);
}

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

.page-about .about-p {
  margin: 0 0 1.05em;
  max-width: 70ch;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.1vw, 17px);
  line-height: 1.78;
  color: var(--paper);
}

.page-about .about-p:last-child {
  margin-bottom: 0;
}

/* ---------- 图片位 ---------- */

.page-about .about-media {
  margin: clamp(18px, 3vw, 26px) 0 0;
  position: relative;
  border: var(--border-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-900);
  box-shadow: var(--shadow-card);
}

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

/* ---------- 团队分工 ---------- */

.page-about .about-roles {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 2vw, 18px);
}

@media (min-width: 720px) {
  .page-about .about-roles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .about-role {
  padding: 18px;
  border: var(--border-line);
  border-radius: var(--radius-md);
  background: rgba(13, 32, 51, 0.72);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-about .about-role:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: var(--shadow-lift);
}

.page-about .about-role__num {
  display: block;
  font-family: var(--font-label);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-about .about-role__name {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-role__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-dim);
}

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

.page-about .about-chain li {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-block: 11px;
  border-top: 1px solid var(--ink-700);
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-about .about-chain li:last-child {
  border-bottom: 1px solid var(--ink-700);
}

.page-about .about-chain__step {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

/* ---------- 合作生态横向带 ---------- */

.page-about .about-section--band {
  border-top: 0;
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.4vw, 38px);
  margin-block: clamp(10px, 2vw, 20px);
  background-color: var(--ink-800);
  background-image: linear-gradient(
    104deg,
    rgba(245, 185, 66, 0.16),
    rgba(53, 231, 214, 0.1) 48%,
    rgba(138, 107, 255, 0.2)
  );
  border: var(--border-line);
  box-shadow: var(--shadow-card);
}

.page-about .about-section--band + .about-section,
.page-about .about-section + .about-section--band {
  border-top: 0;
}

.page-about .about-band__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
}

@media (min-width: 780px) {
  .page-about .about-band__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-about .about-media--band {
    margin-top: 0;
  }
}

/* ---------- 发展历程时间轴 ---------- */

.page-about .about-media--wide {
  margin-top: 0;
}

.page-about .about-timeline__list {
  position: relative;
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(to bottom, var(--cyan), var(--violet) 55%, var(--gold));
  opacity: 0.6;
}

.page-about .about-tl {
  position: relative;
  padding-left: 34px;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .about-tl:hover::before,
.page-about .about-tl:focus-within::before {
  background: var(--cyan);
  border-color: var(--cyan);
  transform: scale(1.18);
}

.page-about .about-tl__year {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-about .about-tl__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-about .about-tl__desc {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-dim);
}

/* ---------- 荣誉 ---------- */

.page-about .about-honor {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 30px);
  padding: clamp(18px, 2.8vw, 30px);
  border: var(--border-line);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-md);
  background: rgba(13, 32, 51, 0.72);
}

@media (min-width: 760px) {
  .page-about .about-honor {
    grid-template-columns: minmax(200px, 0.75fr) minmax(0, 1.6fr);
    align-items: center;
  }
}

.page-about .about-honor__badge {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-about .about-honor__num {
  font-family: var(--font-label);
  font-size: clamp(52px, 8vw, 76px);
  line-height: 0.9;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-about .about-honor__unit {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

/* ---------- 底部快捷路径 ---------- */

.page-about .about-shortcuts {
  padding-block: clamp(24px, 4vw, 46px);
  border-top: 1px dashed var(--ink-700);
}

.page-about .about-shortcuts__hint {
  margin: 0 0 16px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-about .about-shortcuts__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-shortcuts__note {
  margin: 18px 0 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--paper-dim);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-figure:hover,
  .page-about .about-role:hover,
  .page-about .about-tl:hover::before,
  .page-about .about-tl:focus-within::before {
    transform: none;
  }

  .page-about .about-figure,
  .page-about .about-role,
  .page-about .about-tl::before,
  .page-about .about-index__link {
    transition: none;
  }
}