/* ===== 品牌故事页面专属样式 ===== */
.page-about {
  --story-pad: clamp(3.2rem, 7vw, 6rem);
  --story-rail-w: clamp(3.5rem, 6vw, 5.5rem);
}

/* ---------- 首屏 ---------- */
.page-about .story-hero {
  position: relative;
  padding-top: clamp(3.4rem, 8vw, 6.2rem);
  padding-bottom: clamp(2.8rem, 6vw, 4.8rem);
  background:
    linear-gradient(rgba(10, 20, 40, 0.72), rgba(10, 20, 40, 0.92)),
    repeating-linear-gradient(90deg, transparent 0 46px, rgba(139, 157, 196, 0.12) 46px 48px);
  border-bottom: 2px solid var(--c-border);
}

.page-about .story-hero__grid {
  display: grid;
  gap: 2.4rem;
}

.page-about .story-hero__copy {
  border-left: 4px solid var(--c-accent);
  padding-left: clamp(1rem, 3vw, 2rem);
  position: relative;
}

.page-about .story-hero__copy::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 3.5rem;
  height: 2px;
  background: var(--c-live);
}

.page-about .story-hero__crumb {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  margin-bottom: 1rem;
}

.page-about .story-hero__crumb a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .story-hero__crumb a:hover {
  color: var(--c-accent);
}

.page-about .story-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 4.6vw, 3.8rem);
  line-height: 1.16;
  color: var(--c-text);
  margin: 0 0 1.1rem;
  letter-spacing: -0.01em;
}

.page-about .story-hero__lead {
  max-width: 33rem;
  font-size: clamp(0.95rem, 1.4vw, 1.125rem);
  line-height: 1.8;
  color: var(--c-muted);
  margin-bottom: 1.8rem;
}

.page-about .story-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.4rem;
}

.page-about .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 6.5rem;
  padding: 0.9rem 1.1rem;
  background: var(--c-panel);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hard);
}

.page-about .hero-stat__num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--c-accent);
}

.page-about .hero-stat__label {
  font-size: 0.8125rem;
  color: var(--c-muted);
}

/* 首屏框景视觉 */
.page-about .story-hero__visual {
  position: relative;
}

.page-about .hero-frame {
  position: relative;
  padding: 0.6rem;
  background: var(--c-panel);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
}

.page-about .hero-frame::before,
.page-about .hero-frame::after {
  content: "";
  position: absolute;
  width: 2rem;
  height: 2rem;
  border-color: var(--c-accent);
  border-style: solid;
}

.page-about .hero-frame::before {
  top: -2px;
  left: -2px;
  border-width: 3px 0 0 3px;
  border-radius: var(--radius-sm) 0 0 0;
}

.page-about .hero-frame::after {
  bottom: -2px;
  right: -2px;
  border-width: 0 3px 3px 0;
  border-radius: 0 0 var(--radius-sm) 0;
}

.page-about .hero-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
}

.page-about .hero-frame__tag {
  position: absolute;
  top: 1.1rem;
  left: 1.1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-text);
  background: var(--c-accent);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 10px rgba(255, 75, 30, 0.35);
}

.page-about .hero-frame__index {
  position: absolute;
  right: 1.1rem;
  bottom: 1rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  background: rgba(10, 20, 40, 0.78);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* ---------- 章节基础结构 ---------- */
.page-about .about-section {
  padding-top: var(--story-pad);
  padding-bottom: var(--story-pad);
  border-top: 1px solid var(--c-border);
}

.page-about .section-shell {
  display: grid;
  gap: 1rem;
}

.page-about .chapter-index {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
  color: var(--c-accent);
  opacity: 0.85;
  letter-spacing: 0.02em;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--c-border);
  display: inline-block;
  justify-self: start;
}

.page-about .section-label {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}

.page-about .section-label::before {
  content: "── ";
  letter-spacing: 0;
  color: var(--c-accent-2);
}

.page-about .chapter-body h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  line-height: 1.24;
  color: var(--c-text);
  margin: 0 0 1.2rem;
}

.page-about .chapter-body p {
  color: var(--c-muted);
  line-height: 1.85;
  margin: 0 0 1rem;
}

.page-about .chapter-body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-text);
  margin: 0 0 0.4rem;
}

/* ---------- 01 起源与使命 ---------- */
.page-about .origin-grid {
  display: grid;
  gap: 2rem;
}

.page-about .origin-copy p:first-of-type {
  margin-top: 1rem;
}

.page-about .origin-mission {
  border-left: 2px solid var(--c-accent);
  padding-left: 1.25rem;
  align-self: center;
}

.page-about .mission-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--c-border-light);
}

.page-about .mission-item:last-child {
  border-bottom: 0;
}

.page-about .mission-item__no {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--c-accent);
  background: rgba(255, 75, 30, 0.08);
  border: 1px solid rgba(255, 75, 30, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.3rem 0.55rem;
  min-width: 3.4rem;
  text-align: center;
  flex-shrink: 0;
}

.page-about .mission-item__text {
  font-size: 0.975rem;
  color: var(--c-ink);
}

/* ---------- 02 数据能力图谱 ---------- */
.page-about .capability-head {
  max-width: 42rem;
  margin-bottom: 2rem;
}

.page-about .radial-map {
  position: relative;
  max-width: 340px;
  aspect-ratio: 1 / 1;
  margin: 3rem auto 0;
}

.page-about .radial-links {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page-about .radial-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 5.6rem;
  height: 5.6rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  color: var(--c-text);
  box-shadow: 0 0 0 6px rgba(255, 75, 30, 0.14), var(--shadow-accent);
  z-index: 1;
}

.page-about .radial-core strong {
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.page-about .radial-core span {
  font-family: var(--font-data);
  font-size: 0.68rem;
  opacity: 0.9;
}

.page-about .radial-node {
  position: absolute;
  z-index: 2;
  max-width: 7rem;
  padding: 0.55rem 0.65rem;
  background: var(--c-panel);
  border: 2px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hard);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-about .radial-node:hover {
  border-color: var(--c-accent);
  transform: translate(-50%, -50%) rotate(-3deg) scale(1.03);
}

.page-about .radial-node h3 {
  font-size: 0.775rem;
  margin-bottom: 0.2rem;
}

.page-about .radial-node span {
  font-family: var(--font-data);
  font-size: 0.6rem;
  line-height: 1.4;
  color: var(--c-muted);
  display: block;
}

.page-about .radial-node--players {
  top: 0;
  left: 50%;
  transform: translate(-50%, 0);
  margin-top: 0.5rem;
}

.page-about .radial-node--scores {
  top: 50%;
  right: 0;
  transform: translate(0, -50%);
  margin-right: 0.4rem;
}

.page-about .radial-node--possession {
  bottom: 0;
  left: 50%;
  transform: translate(-50%, 0);
  margin-bottom: 0.5rem;
}

.page-about .radial-node--briefs {
  top: 50%;
  left: 0;
  transform: translate(0, -50%);
  margin-left: 0.4rem;
}

.page-about .radial-node--scores:hover {
  transform: translate(0, -50%) rotate(3deg) scale(1.03);
}

.page-about .radial-node--briefs:hover {
  transform: translate(0, -50%) rotate(-3deg) scale(1.03);
}

/* ---------- 03 发展轨迹线 ---------- */
.page-about .timeline-section {
  background:
    linear-gradient(rgba(22, 33, 58, 0.72), rgba(10, 20, 40, 0.9)),
    repeating-linear-gradient(0deg, transparent 0 30px, rgba(139, 157, 196, 0.07) 30px 32px);
}

.page-about .timeline-head {
  max-width: 42rem;
  margin-bottom: 2.4rem;
}

.page-about .timeline-head::after {
  content: "";
  display: block;
  width: 6rem;
  height: 3px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2), transparent);
  transform: skewX(-18deg);
  margin-top: 1.4rem;
}

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

.page-about .timeline-item {
  position: relative;
  padding-left: 1.6rem;
  padding-bottom: 1.8rem;
}

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

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4rem;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-accent) 0%, var(--c-border) 100%);
}

.page-about .timeline-item:last-child::before {
  display: none;
}

.page-about .timeline-item__year {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.25rem;
  line-height: 1.4;
  color: var(--c-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
  background: rgba(255, 75, 30, 0.08);
  border: 1px solid rgba(255, 75, 30, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.2rem 0.6rem;
}

.page-about .timeline-item__card {
  background: var(--c-panel);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow-1);
}

.page-about .timeline-item__card p {
  margin: 0;
  font-size: 0.925rem;
  line-height: 1.75;
}

.page-about .timeline-visual {
  margin-top: 2.4rem;
  position: relative;
}

.page-about .timeline-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-about .timeline-visual figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-data);
  font-size: 0.775rem;
  color: var(--c-muted);
  text-align: right;
}

/* ---------- 04 当前赛季里程碑 ---------- */
.page-about .milestone-head {
  max-width: 42rem;
  margin-bottom: 2rem;
}

.page-about .milestone-grid {
  display: grid;
  gap: 1.25rem;
}

.page-about .milestone-card {
  position: relative;
  padding: 1.5rem 1.4rem 1.4rem;
  background: var(--c-panel);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .milestone-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 2.6rem;
  height: 2.6rem;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 75, 30, 0.65) 50%);
  border-radius: 0 var(--radius-sm) 0 var(--radius-sm);
}

.page-about .milestone-card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-accent);
}

.page-about .milestone-card__tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  background: rgba(255, 75, 30, 0.08);
  border: 1px solid rgba(255, 75, 30, 0.32);
  border-radius: var(--radius-sm);
  padding: 0.28rem 0.55rem;
  margin-bottom: 0.9rem;
}

.page-about .milestone-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.page-about .milestone-card p {
  margin: 0;
  font-size: 0.9rem;
}

.page-about .milestone-card--sync {
  border-left: 4px solid var(--c-up);
}

.page-about .milestone-card--tablet {
  border-left: 4px solid var(--c-live);
}

.page-about .milestone-card--cn {
  border-left: 4px solid var(--c-accent);
}

.page-about .milestone-card--volume {
  border-left: 4px solid var(--c-accent-2);
}

/* ---------- 05 团队与内容协作方式 ---------- */
.page-about .team-shell {
  gap: 1.4rem;
}

.page-about .team-wrapper {
  display: grid;
  gap: 2.4rem;
}

.page-about .team-content h2 {
  margin-bottom: 0.8rem;
}

.page-about .workflow {
  margin-top: 1.6rem;
  border-top: 2px solid var(--c-border);
}

.page-about .workflow__step {
  display: grid;
  grid-template-columns: 2.8rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--c-border);
}

.page-about .workflow__no {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--c-accent);
  background: rgba(255, 75, 30, 0.08);
  border-radius: var(--radius-sm);
  width: 2.4rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: start;
}

.page-about .workflow__body h3 {
  font-size: 1rem;
}

.page-about .workflow__body p {
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.72;
}

.page-about .team-visual {
  margin: 0;
}

.page-about .team-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-about .team-visual figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-data);
  font-size: 0.775rem;
  color: var(--c-muted);
}

/* ---------- 06 合规与数据边界 ---------- */
.page-about .compliance-head {
  max-width: 42rem;
  margin-bottom: 2rem;
}

.page-about .compliance-list {
  display: grid;
  gap: 1.25rem;
}

.page-about .compliance-item {
  display: grid;
  grid-template-columns: 4.6rem minmax(0, 1fr);
  gap: 1.1rem;
  padding: 1.4rem 1.3rem;
  background: var(--c-panel);
  border: 2px solid var(--c-border);
  border-radius: var(--radius);
  transition: border-color 0.2s ease;
}

.page-about .compliance-item:hover {
  border-color: var(--c-accent);
}

.page-about .compliance-item__ico {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  background: rgba(255, 75, 30, 0.1);
  border: 1px solid rgba(255, 75, 30, 0.34);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.4rem;
  text-align: center;
  align-self: start;
  height: fit-content;
}

.page-about .compliance-item__body h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.page-about .compliance-item__body p {
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.72;
}

/* ---------- 底部引导 ---------- */
.page-about .about-cta-band {
  border-top: 3px solid var(--c-accent);
  border-bottom: 3px solid var(--c-border);
  background:
    linear-gradient(135deg, rgba(26, 39, 68, 0.92), rgba(22, 33, 58, 0.96)),
    repeating-linear-gradient(90deg, transparent 0 38px, rgba(255, 75, 30, 0.14) 38px 40px);
  padding: clamp(2rem, 4vw, 3.4rem) 0;
}

.page-about .about-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.2rem;
}

.page-about .about-cta__inner p {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  color: var(--c-text);
  margin: 0;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px) {
  .page-about .story-hero__stats {
    gap: 1.25rem;
  }

  .page-about .hero-stat {
    min-width: 7.5rem;
  }

  .page-about .radial-map {
    max-width: 420px;
  }

  .page-about .radial-node {
    max-width: 8.2rem;
  }

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

  .page-about .compliance-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-cta__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .page-about .section-shell {
    grid-template-columns: var(--story-rail-w) minmax(0, 1fr);
    gap: clamp(1.6rem, 4vw, 4rem);
    align-items: start;
  }

  .page-about .chapter-index {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    border-bottom: 0;
    border-left: 2px solid var(--c-border);
    padding-bottom: 0;
    padding-left: 0.6rem;
    justify-self: end;
    justify-self: center;
  }

  .page-about .story-hero__grid {
    grid-template-columns: 6.5fr 5.5fr;
    gap: clamp(2.5rem, 6vw, 5.5rem);
    align-items: center;
  }

  .page-about .story-hero__copy {
    padding-left: 2rem;
  }

  .page-about .story-hero__lead {
    margin-bottom: 2rem;
  }

  .page-about .origin-grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: center;
  }

  .page-about .radial-map {
    max-width: 620px;
    margin-top: 4rem;
  }

  .page-about .radial-core {
    width: 8.6rem;
    height: 8.6rem;
  }

  .page-about .radial-core strong {
    font-size: 1.15rem;
  }

  .page-about .radial-node {
    max-width: 11rem;
    padding: 1rem 1.15rem;
  }

  .page-about .radial-node h3 {
    font-size: 0.9rem;
  }

  .page-about .radial-node span {
    font-size: 0.68rem;
  }

  .page-about .radial-node--players {
    top: 1.5%;
  }

  .page-about .radial-node--scores {
    right: 1%;
  }

  .page-about .radial-node--briefs {
    left: 1%;
  }

  .page-about .radial-node--possession {
    bottom: 1.5%;
  }

  .page-about .timeline {
    margin-top: 1rem;
  }

  .page-about .timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding-left: 0;
    padding-bottom: 2.2rem;
  }

  .page-about .timeline-item::before {
    left: 50%;
    top: 0.4rem;
    bottom: 0;
    width: 2px;
    transform: translateX(-1px);
  }

  .page-about .timeline-item__year {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    align-self: start;
    margin: 0;
    margin-right: 2.6rem;
    font-size: 1.45rem;
  }

  .page-about .timeline-item__card {
    grid-column: 2;
    grid-row: 1;
    margin-left: 2.6rem;
  }

  .page-about .timeline-item:nth-child(even) .timeline-item__year {
    grid-column: 2;
    grid-row: 1;
    justify-self: start;
    margin: 0;
    margin-left: 2.6rem;
  }

  .page-about .timeline-item:nth-child(even) .timeline-item__card {
    grid-column: 1;
    grid-row: 1;
    margin-left: 0;
    margin-right: 2.6rem;
  }

  .page-about .timeline-visual {
    margin-top: 2.8rem;
  }

  .page-about .timeline-visual img {
    max-width: 68%;
  }

  .page-about .timeline-visual figcaption {
    max-width: 68%;
  }

  .page-about .milestone-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-about .team-wrapper {
    grid-template-columns: 7fr 5fr;
    gap: clamp(2.5rem, 5vw, 4.5rem);
    align-items: start;
  }

  .page-about .team-visual {
    position: sticky;
    top: 2rem;
  }

  .page-about .compliance-item {
    grid-template-columns: 1fr;
    gap: 0.7rem;
    padding: 1.5rem 1.4rem;
  }

  .page-about .compliance-item__ico {
    align-self: start;
    width: fit-content;
  }

  .page-about .about-cta__actions {
    gap: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .radial-node:hover {
    transform: translate(-50%, -50%);
  }

  .page-about .milestone-card,
  .page-about .timeline-item__card {
    transition: none;
  }
}