/* ========== 品牌故事页专属样式 ========== */
.page-about {
  --about-gold-soft: rgba(212, 175, 55, 0.28);
  --about-cream-muted: rgba(245, 240, 230, 0.78);
}

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

.page-about figure {
  margin: 0;
}

.page-about figcaption {
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--bwin-mist);
  letter-spacing: 0.04em;
  position: relative;
  padding-left: 18px;
}

.page-about figcaption::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 10px;
  height: 1px;
  background: var(--bwin-gold);
}

/* ---------- 首屏：档案封面 ---------- */
.page-about .about-hero {
  background: var(--bwin-forest);
  color: var(--bwin-cream);
  padding: 32px 0 64px;
  position: relative;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -40px;
  width: 320px;
  height: 320px;
  border: 1px solid var(--about-gold-soft);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--bwin-gold) 0%, var(--bwin-gold) 35%, var(--bwin-wine) 35%, var(--bwin-wine) 38%, transparent 38%);
}

.page-about .about-hero .breadcrumbs {
  margin-bottom: 48px;
  padding-left: 0;
  color: var(--bwin-mist);
}

.page-about .about-hero .breadcrumbs a {
  color: var(--bwin-gold);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 36px;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__archive {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bwin-gold);
  margin: 0 0 16px;
  padding-left: 20px;
  position: relative;
}

.page-about .about-hero__archive::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--bwin-gold);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}

.page-about .about-hero__sub {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: var(--bwin-gold);
  margin: 0 0 24px;
}

.page-about .about-hero__lead {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--about-cream-muted);
  max-width: 620px;
  margin: 0 0 32px;
}

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

.page-about .about-hero__stamp {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bwin-gold);
  color: var(--bwin-gold);
  padding: 20px 28px;
  transform: rotate(-5deg);
  background: rgba(212, 175, 55, 0.06);
  position: relative;
  max-width: 220px;
  text-align: center;
}

.page-about .about-hero__stamp::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid var(--about-gold-soft);
}

.page-about .about-hero__stamp-num {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
}

.page-about .about-hero__stamp-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  margin-top: 4px;
}

.page-about .about-hero__stamp-year {
  font-size: 0.65rem;
  letter-spacing: 0.24em;
  color: rgba(245, 240, 230, 0.65);
  margin-top: 12px;
}

/* ---------- 01 品牌宣言 ---------- */
.page-about .about-manifesto {
  background: var(--bwin-cream);
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-about .about-manifesto::before {
  content: "01";
  position: absolute;
  right: 12px;
  top: 20px;
  font-family: var(--font-display);
  font-size: clamp(6rem, 16vw, 12rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(11, 61, 46, 0.05);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-manifesto__verse {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 900;
  line-height: 1.35;
  color: var(--bwin-forest);
  margin: 0;
  padding-top: 8px;
  border-top: 4px solid var(--bwin-gold);
}

.page-about .about-manifesto__body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-about .about-manifesto__intro {
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--bwin-ink);
  margin: 0;
}

.page-about .about-manifesto__quote {
  margin: 12px 0 0;
  padding: 20px 24px;
  border-left: 3px solid var(--bwin-wine);
  background: rgba(139, 30, 30, 0.06);
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--bwin-ink);
}

/* ---------- 02 发展里程碑 ---------- */
.page-about .about-milestones {
  background: var(--bwin-forest-deep);
  color: var(--bwin-cream);
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-about .about-milestones::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -80px;
  width: 260px;
  height: 260px;
  border: 1px solid var(--about-gold-soft);
  transform: rotate(45deg);
  pointer-events: none;
  z-index: 0;
}

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

.page-about .about-milestones .section-head {
  margin-bottom: 48px;
}

.page-about .about-milestones__layout {
  display: grid;
  gap: 48px;
}

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

.page-about .about-milestones__timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--bwin-gold), rgba(212, 175, 55, 0.2));
}

.page-about .milestone {
  position: relative;
  padding: 0 0 42px 44px;
}

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

.page-about .milestone::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--bwin-gold);
  transform: rotate(45deg);
  box-shadow: 0 0 0 5px rgba(212, 175, 55, 0.18);
}

.page-about .milestone__year {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--bwin-gold);
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 4px 12px;
  margin-bottom: 10px;
  background: rgba(212, 175, 55, 0.06);
}

.page-about .milestone__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  margin: 0 0 8px;
  color: var(--bwin-cream);
}

.page-about .milestone__desc {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--about-cream-muted);
  margin: 0;
  max-width: 560px;
}

.page-about .about-milestones__media {
  align-self: end;
  margin: 0;
}

.page-about .about-milestones__media .media-frame {
  border: 1px solid rgba(212, 175, 55, 0.35);
}

/* ---------- 03 数据一瞥 ---------- */
.page-about .about-data {
  background: var(--bwin-cream);
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-about .about-data::before {
  content: "03";
  position: absolute;
  left: 12px;
  top: 20px;
  font-family: var(--font-display);
  font-size: clamp(6rem, 16vw, 12rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(11, 61, 46, 0.05);
  pointer-events: none;
}

.page-about .about-data__layout {
  display: grid;
  gap: 48px;
  margin-top: 44px;
  position: relative;
  z-index: 1;
}

.page-about .stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .stat-card {
  perspective: 1200px;
  cursor: default;
}

.page-about .stat-card__inner {
  position: relative;
  display: grid;
  min-height: 180px;
  transform-style: preserve-3d;
  transition: transform 0.5s var(--ease);
}

.page-about .stat-card__front,
.page-about .stat-card__back {
  grid-area: 1 / 1;
  padding: 28px 22px;
  border: 1px solid var(--bwin-mist);
  backface-visibility: hidden;
}

.page-about .stat-card__front {
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.page-about .stat-card__back {
  background: var(--bwin-forest);
  color: var(--bwin-cream);
  border-color: var(--bwin-forest);
  transform: rotateY(180deg);
  display: flex;
  align-items: center;
}

.page-about .stat-card:hover .stat-card__inner,
.page-about .stat-card:focus-within .stat-card__inner {
  transform: rotateY(180deg);
}

.page-about .stat-card__num {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--bwin-forest);
  line-height: 1.1;
}

.page-about .stat-card__label {
  margin-top: 6px;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: var(--bwin-ink);
  opacity: 0.75;
}

.page-about .stat-card__back p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.92);
}

.page-about .about-data__media {
  margin: 0;
}

.page-about .about-data__media .media-frame {
  border: 1px solid var(--bwin-mist);
  background: var(--bwin-mist);
}

/* ---------- 04 老球迷文化 ---------- */
.page-about .about-culture {
  background: #fdfbf5;
  border-top: 1px solid var(--bwin-mist);
  padding: 64px 0 72px;
}

.page-about .about-culture__layout {
  display: grid;
  gap: 48px;
  margin-top: 44px;
}

.page-about .about-culture__list {
  display: grid;
  gap: 20px;
}

.page-about .culture-card {
  position: relative;
  background: var(--bwin-cream);
  border: 1px solid var(--bwin-mist);
  border-left: 4px solid var(--bwin-gold);
  padding: 24px 24px 26px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.page-about .culture-card:hover {
  border-color: var(--bwin-spring);
  box-shadow: 8px 8px 0 rgba(11, 61, 46, 0.08);
}

.page-about .culture-card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--bwin-wine);
  border: 1px solid rgba(139, 30, 30, 0.3);
  padding: 3px 10px;
  margin-bottom: 12px;
}

.page-about .culture-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--bwin-forest);
  margin: 0 0 8px;
}

.page-about .culture-card__text {
  font-size: 0.89rem;
  line-height: 1.8;
  color: var(--bwin-ink);
  margin: 0;
}

.page-about .about-culture__media {
  margin: 0;
}

/* ---------- 收尾：信任与入口 ---------- */
.page-about .about-closing {
  background: var(--bwin-forest-deep);
  color: var(--bwin-cream);
  padding: 72px 0;
}

.page-about .about-closing__box {
  position: relative;
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 40px 32px;
  background: rgba(11, 61, 46, 0.55);
  overflow: hidden;
}

.page-about .about-closing__box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--bwin-gold) 0%, var(--bwin-gold) 22%, var(--bwin-wine) 22%, var(--bwin-wine) 26%, transparent 26%);
}

.page-about .about-closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 900;
  margin: 0 0 16px;
  color: var(--bwin-cream);
}

.page-about .about-closing p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--about-cream-muted);
  max-width: 680px;
  margin: 0 0 28px;
}

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

/* ---------- 平板与桌面布局 ---------- */
@media (min-width: 768px) {
  .page-about .about-hero__inner {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }

  .page-about .about-hero__stamp {
    justify-self: end;
    margin-right: 24px;
  }

  .page-about .about-manifesto__layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
  }

  .page-about .about-culture__layout {
    grid-template-columns: 1fr 0.85fr;
    gap: 56px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-about .about-milestones__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: start;
  }

  .page-about .about-data__layout {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 56px;
    align-items: center;
  }

  .page-about .stats-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* ---------- 降低动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .stat-card__inner {
    display: block;
    min-height: 0;
    transform: none;
    transition: none;
  }

  .page-about .stat-card__back {
    transform: none;
    backface-visibility: visible;
  }

  .page-about .stat-card:hover .stat-card__inner,
  .page-about .stat-card:focus-within .stat-card__inner {
    transform: none;
  }
}