/* ===== 品牌档案页 · 页面专属样式 ===== */
.page-about {
  position: relative;
  overflow-x: clip;
}

.page-about .breadcrumb {
  padding-top: 24px;
  font-size: 14px;
}

/* ---- Hero 首屏 ---- */
.page-about .about-hero {
  position: relative;
  padding: 40px 0 48px;
  background:
    linear-gradient(135deg, rgba(0,255,158,0.07), transparent 42%),
    linear-gradient(315deg, rgba(0,212,255,0.09), transparent 46%);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, rgba(0,212,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.6;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: 10px;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(0,212,255,0.28);
  transform: rotate(24deg);
  background:
    linear-gradient(0deg, rgba(0,255,158,0.12), rgba(0,255,158,0.12)) 50% 0 / 1px 100% no-repeat,
    linear-gradient(90deg, rgba(0,212,255,0.12), rgba(0,212,255,0.12)) 0 50% / 100% 1px no-repeat;
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-about .about-hero__main .page-header__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--color-neon);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.page-about .about-hero__main .page-header__kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--color-neon);
  box-shadow: var(--glow-neon);
}

.page-about .about-hero__main .page-header__title {
  position: relative;
  margin: 0 0 18px;
  font-size: clamp(40px, 9vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-shadow: 0 0 32px rgba(0,255,158,0.22);
}

.page-about .about-hero__main .page-header__title::after {
  content: "";
  position: absolute;
  left: -6px;
  bottom: 0.08em;
  width: 0.74em;
  height: 0.2em;
  background: linear-gradient(90deg, rgba(0,255,158,0.32), rgba(0,212,255,0.16));
  clip-path: polygon(0 0, 100% 0, calc(100% - 22%) 100%, 0 100%);
  z-index: -1;
}

.page-about .about-hero__main .page-header__lead {
  max-width: 34em;
  margin: 0 0 28px;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.9;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-about .about-hero__actions .btn {
  min-height: 44px;
  padding: 12px 22px;
  font-size: 15px;
}

.page-about .about-hero__board {
  display: grid;
  gap: 16px;
}

.page-about .about-hero__round {
  position: relative;
  padding: 26px 22px 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-neon);
  box-shadow: var(--glow-neon);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-about .about-hero__round-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
}

.page-about .about-hero__round-num {
  display: block;
  margin: 10px 0 4px;
  font-family: var(--font-data);
  font-size: 76px;
  line-height: 0.9;
  color: var(--color-neon);
  text-shadow: 0 0 26px rgba(0,255,158,0.5);
}

.page-about .about-hero__round-unit {
  display: block;
  font-size: 13px;
  color: var(--color-muted);
}

.page-about .about-hero__stats {
  margin: 0;
  padding: 20px;
  background: rgba(21, 26, 34, 0.85);
  border: 1px solid var(--color-border);
  display: grid;
  gap: 14px;
  align-content: center;
}

.page-about .about-hero__stats div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--color-border);
}

.page-about .about-hero__stats div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .about-hero__stats dt {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.page-about .about-hero__stats dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 30px;
  line-height: 1;
  color: var(--color-blue);
  text-shadow: 0 0 16px rgba(0, 212, 255, 0.4);
}

/* ---- 品牌故事 ---- */
.page-about .about-story {
  padding: 64px 0;
}

.page-about .about-story__grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-about .about-story__media {
  position: relative;
  margin: 0;
}

.page-about .about-story__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.12) contrast(1.05);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-story__badge {
  position: absolute;
  left: 0;
  bottom: 26px;
  padding: 10px 16px 12px;
  background: var(--color-neon);
  color: #07130C;
  font-family: var(--font-data);
  font-size: 18px;
  font-weight: 800;
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  box-shadow: var(--glow-neon);
}

.page-about .about-story__badge span {
  display: block;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-story__caption {
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.7;
}

.page-about .about-story__content {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-about .about-story__content .section__kicker {
  margin: 0;
  color: var(--color-neon);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-about .about-story__content .section__title {
  margin: -6px 0 0;
}

.page-about .about-story__slogan {
  margin: 4px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--color-blue);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.18);
}

.page-about .about-story__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-secondary);
}

.page-about .about-story__quote {
  margin: 6px 0 0;
  padding: 18px 20px;
  background: linear-gradient(90deg, rgba(0,255,158,0.14), rgba(0,212,255,0.08));
  border: 1px solid var(--color-border);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

/* ---- 发展里程碑 ---- */
.page-about .about-timeline {
  position: relative;
  padding: 64px 0;
  background: linear-gradient(180deg, #151A22 0%, #0D1117 100%);
}

.page-about .about-timeline::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: repeating-linear-gradient(115deg, transparent 0 10px, rgba(0,212,255,0.28) 10px 11px);
}

.page-about .about-timeline__layout {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}

.page-about .about-timeline__list {
  position: relative;
  margin: 0;
  padding: 0 0 0 24px;
  list-style: none;
}

.page-about .about-timeline__list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-neon), var(--color-blue));
  opacity: 0.7;
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 38px 20px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 0 4px rgba(0, 255, 158, 0.16), 0 0 18px rgba(0, 255, 158, 0.45);
}

.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(46px, 9vw, 68px);
  font-weight: 800;
  line-height: 0.9;
  color: rgba(242, 245, 248, 0.16);
  margin-bottom: 10px;
}

.page-about .about-timeline__year::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 10px;
  background: linear-gradient(90deg, var(--color-neon), transparent);
}

.page-about .about-timeline__card h3 {
  margin: 0 0 6px;
  font-size: 20px;
  color: var(--color-text);
}

.page-about .about-timeline__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

.page-about .about-timeline__media {
  position: relative;
  margin: 0;
}

.page-about .about-timeline__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.08);
}

.page-about .about-timeline__media::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 56px;
  height: 56px;
  border-right: 2px solid var(--color-neon);
  border-bottom: 2px solid var(--color-neon);
  opacity: 0.75;
}

/* ---- 数据覆盖与能力 ---- */
.page-about .about-coverage {
  position: relative;
  padding: 64px 0;
}

.page-about .about-coverage::before {
  content: "116";
  position: absolute;
  top: 36px;
  right: -12px;
  font-family: var(--font-data);
  font-size: clamp(120px, 24vw, 230px);
  font-weight: 800;
  line-height: 1;
  color: rgba(242, 245, 248, 0.035);
  pointer-events: none;
}

.page-about .about-coverage__grid {
  position: relative;
  display: grid;
  gap: 26px;
  margin-top: 32px;
}

.page-about .about-coverage__panel {
  position: relative;
  padding: 30px 24px;
  background: linear-gradient(135deg, #151A22, #1A212C);
  border: 1px solid var(--color-border);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}

.page-about .about-coverage__panel::after {
  content: "";
  position: absolute;
  right: -36px;
  top: -36px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.2), transparent 70%);
}

.page-about .about-coverage__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 18px;
  margin: 0;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(38px, 8vw, 62px);
  line-height: 1;
  color: var(--color-neon);
  text-shadow: var(--glow-neon);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
}

.page-about .about-coverage__side .section__kicker {
  margin: 0 0 12px;
  color: var(--color-blue);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-about .about-coverage__leagues {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-coverage__league {
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-blue);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.35);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
}

.page-about .about-coverage__league:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-blue);
}

.page-about .about-coverage__note {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--color-silver);
  font-size: 14px;
  line-height: 1.85;
  color: var(--color-muted);
}

/* ---- 服务承诺 ---- */
.page-about .about-promise {
  padding: 64px 0;
}

.page-about .about-promise__grid {
  display: grid;
  gap: 18px;
  margin-top: 32px;
}

.page-about .about-promise__item {
  position: relative;
  padding: 28px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-neon);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, border-color 0.25s;
}

.page-about .about-promise__item--wide {
  border-top-color: var(--color-blue);
}

.page-about .about-promise__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-neon);
  border-color: rgba(0, 255, 158, 0.4);
}

.page-about .about-promise__item--wide:hover {
  box-shadow: var(--glow-blue);
  border-color: rgba(0, 212, 255, 0.42);
}

.page-about .about-promise__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--color-muted);
}

.page-about .about-promise__item h3 {
  margin: 0 0 10px;
  font-size: 22px;
  color: var(--color-text);
}

.page-about .about-promise__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-secondary);
}

/* ---- 生态与合作 ---- */
.page-about .about-eco {
  padding: 64px 0;
  background: linear-gradient(180deg, transparent, rgba(0, 212, 255, 0.045) 50%, transparent);
}

.page-about .about-eco__grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-about .about-eco__media {
  position: relative;
  margin: 0;
}

.page-about .about-eco__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: contrast(1.06);
}

.page-about .about-eco__content .section__kicker {
  margin: 0 0 12px;
  color: var(--color-neon);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-about .about-eco__content .section__title {
  margin: 0 0 16px;
}

.page-about .about-eco__content > p:not(.section__kicker) {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text-secondary);
}

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

.page-about .about-eco__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  background: rgba(21, 26, 34, 0.78);
  border: 1px solid var(--color-border);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s var(--ease-out);
}

.page-about .about-eco__item::before {
  content: "";
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  background: var(--color-neon);
  transform: rotate(45deg);
  box-shadow: var(--glow-neon);
}

.page-about .about-eco__item:hover {
  border-color: rgba(0, 255, 158, 0.4);
  box-shadow: var(--glow-neon);
  transform: translateX(4px);
}

/* ---- 用户规模与荣誉 ---- */
.page-about .about-users {
  padding: 64px 0;
}

.page-about .about-users .section__head {
  text-align: center;
}

.page-about .about-users__stats {
  display: grid;
  gap: 18px;
  margin: 36px 0 40px;
}

.page-about .about-users__stat {
  padding: 30px 18px;
  background: linear-gradient(135deg, rgba(0, 255, 158, 0.08), rgba(0, 212, 255, 0.04));
  border: 1px solid var(--color-border);
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), 0 100%);
}

.page-about .about-users__num {
  display: block;
  font-family: var(--font-data);
  font-size: clamp(44px, 10vw, 72px);
  line-height: 1;
  color: var(--color-text);
  text-shadow: 0 0 30px rgba(0, 255, 158, 0.28);
}

.page-about .about-users__label {
  display: block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.page-about .about-users__honors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-honor {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-silver);
  clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
  transition: box-shadow 0.25s, border-color 0.25s;
}

.page-about .about-honor::before {
  content: "★";
  color: var(--color-neon);
  font-size: 13px;
}

.page-about .about-honor:hover {
  border-color: var(--color-blue);
  box-shadow: var(--glow-blue);
}

/* ---- 底部 CTA ---- */
.page-about .about-cta {
  padding: 0 0 72px;
}

.page-about .about-cta__inner {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 40px 24px;
  background:
    linear-gradient(90deg, rgba(0, 255, 158, 0.12), rgba(0, 212, 255, 0.1)),
    var(--color-surface);
  border: 1px solid var(--color-border);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-cta__title {
  margin: 0;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.2;
  color: var(--color-text);
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-secondary);
}

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

/* ---- 平板及以上 ---- */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 64px 0 72px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: 1.25fr 0.85fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-hero__board {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-hero__round-num {
    font-size: 88px;
  }

  .page-about .about-story {
    padding: 88px 0;
  }

  .page-about .about-story__grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
  }

  .page-about .about-timeline {
    padding: 88px 0;
  }

  .page-about .about-timeline__layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-coverage {
    padding: 88px 0;
  }

  .page-about .about-coverage__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-promise {
    padding: 88px 0;
  }

  .page-about .about-promise__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-promise__item--wide {
    grid-column: 1 / -1;
  }

  .page-about .about-eco {
    padding: 88px 0;
  }

  .page-about .about-eco__grid {
    grid-template-columns: 1fr 1fr;
    gap: 52px;
  }

  .page-about .about-users {
    padding: 88px 0;
  }

  .page-about .about-users__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-cta {
    padding-bottom: 88px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: 1fr auto;
    gap: 20px 40px;
    padding: 52px 40px;
  }

  .page-about .about-cta__text {
    grid-column: 1;
  }

  .page-about .about-cta__links {
    grid-column: 2;
    grid-row: 1 / span 2;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
  }
}

/* ---- 桌面端微调 ---- */
@media (min-width: 1024px) {
  .page-about .about-hero__round-num {
    font-size: 100px;
  }

  .page-about .about-timeline__year {
    font-size: 68px;
  }

  .page-about .about-coverage__stats {
    gap: 36px 28px;
  }
}

/* ---- 减弱动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero__actions .btn,
  .page-about .about-coverage__league,
  .page-about .about-promise__item,
  .page-about .about-eco__item,
  .page-about .about-honor {
    transition: none;
    transform: none;
  }
}