/* ===== 关于华体育 | 品牌故事与发展历程 ===== */
.page-about {
  background: var(--sis-cloud);
  color: var(--sis-carbon);
  overflow-x: hidden;
}

/* 品牌起源 */
.page-about__origin {
  background:
    radial-gradient(circle at 88% 18%, rgba(212, 175, 55, 0.18), transparent 30%),
    linear-gradient(135deg, var(--sis-rice) 0%, var(--sis-cloud) 60%, var(--sis-mint) 130%);
  padding: 40px 0 68px;
}

.page-about__eyebrow {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--sis-gold-dark);
  text-transform: uppercase;
  background: rgba(212, 175, 55, 0.14);
  border: 1px solid rgba(212, 175, 55, 0.4);
  padding: 7px 14px;
  border-radius: 999px;
  margin: 0;
}

.page-about__title {
  font-size: clamp(32px, 6vw, 54px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  transform: skew(-5deg);
  color: var(--sis-green-deep);
  margin: 20px 0 18px;
}

.page-about__lead {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(10, 61, 46, 0.8);
  max-width: 36em;
  margin: 0;
}

.page-about__origin-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 32px 0 36px;
}

.page-about__origin-stat {
  background: rgba(248, 249, 250, 0.85);
  border: 1px solid rgba(212, 175, 55, 0.22);
  border-radius: var(--sis-radius-sm);
  padding: 14px 16px;
  box-shadow: 0 4px 14px rgba(10, 61, 46, 0.06);
}

.page-about__stat-num {
  display: block;
  font-family: var(--sis-mono);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--sis-gold-dark);
}

.page-about__stat-num small {
  font-size: 14px;
  font-weight: 700;
  color: var(--sis-green);
  margin-left: 2px;
}

.page-about__stat-label {
  display: block;
  font-size: 13px;
  line-height: 1.4;
  color: rgba(26, 26, 26, 0.7);
  margin-top: 6px;
}

.page-about__split {
  display: grid;
  gap: 36px;
  align-items: center;
  margin-top: 40px;
}

.page-about__media-figure {
  margin: 0;
}

.page-about__media-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--sis-radius-lg);
}

.page-about__origin .page-about__media-figure img {
  box-shadow: var(--sis-shadow);
  border: 4px solid #fff;
}

.page-about__media-figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(26, 26, 26, 0.6);
}

/* 发展里程碑 */
.page-about__milestones {
  padding: 72px 0 60px;
}

.page-about__head-center {
  max-width: 680px;
  margin: 0 auto 56px;
  text-align: center;
}

.page-about__head-sub {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sis-gold-dark);
  margin: 0;
}

.page-about__head-title {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  line-height: 1.12;
  color: var(--sis-green-deep);
  transform: skew(-4deg);
  margin: 10px 0 0;
}

.page-about__timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about__timeline::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--sis-gold) 0%, var(--sis-gold-dark) 55%, var(--sis-teal) 100%);
}

.page-about__timeline-item {
  position: relative;
  padding: 0 0 44px 72px;
}

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

.page-about__timeline-year {
  position: absolute;
  left: 0;
  top: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--sis-green);
  border: 3px solid var(--sis-gold);
  color: var(--sis-gold);
  font-family: var(--sis-mono);
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 6px rgba(212, 175, 55, 0.16);
}

.page-about__timeline-item::after {
  content: "";
  position: absolute;
  top: 40px;
  left: 52px;
  width: 20px;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--sis-gold) 0 4px, transparent 4px 8px);
}

.page-about__timeline-card {
  background: #fff;
  border-radius: var(--sis-radius);
  padding: 24px 26px;
  border-left: 4px solid var(--sis-gold);
  box-shadow: 0 8px 28px rgba(10, 61, 46, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-about__timeline-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(10, 61, 46, 0.16);
  border-left-color: var(--sis-red);
}

.page-about__timeline-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--sis-green);
  margin: 0 0 10px;
}

.page-about__timeline-card p {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.74);
  margin: 0;
}

/* 我们的团队 */
.page-about__team {
  padding: 72px 0;
}

.page-about__team-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about__team-media .page-about__media-figure img {
  box-shadow: var(--sis-shadow);
}

.page-about__team-copy .page-about__head-title {
  margin-top: 10px;
}

.page-about__team-lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(26, 26, 26, 0.76);
  margin: 18px 0 24px;
}

.page-about__metrics {
  display: grid;
  gap: 14px;
}

.page-about__metric {
  background: var(--sis-cloud);
  border-radius: var(--sis-radius);
  padding: 20px 22px;
  border-top: 4px solid var(--sis-gold);
  box-shadow: 0 6px 20px rgba(10, 61, 46, 0.07);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__metric:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(10, 61, 46, 0.14);
}

.page-about__metric-num {
  display: block;
  font-family: var(--sis-mono);
  font-size: 32px;
  font-weight: 800;
  line-height: 1.1;
  color: var(--sis-green);
}

.page-about__metric-num small {
  font-size: 15px;
  color: var(--sis-gold-dark);
  font-weight: 800;
  margin-left: 2px;
}

.page-about__metric-label {
  display: block;
  font-size: 14px;
  color: rgba(26, 26, 26, 0.72);
  margin-top: 8px;
}

.page-about__team-note {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(26, 26, 26, 0.64);
  background: rgba(212, 175, 55, 0.1);
  border-left: 3px solid var(--sis-gold);
  padding: 14px 18px;
  border-radius: 0 var(--sis-radius-sm) var(--sis-radius-sm) 0;
  margin: 24px 0 0;
}

/* 资质与认证 */
.page-about__cert {
  padding: 72px 0;
}

.page-about__cert-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-about__cert .page-about__head-sub {
  color: var(--sis-gold);
}

.page-about__cert .page-about__head-title {
  color: var(--sis-cloud);
}

.page-about__cert-lead {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(248, 249, 250, 0.72);
  margin: 18px 0 28px;
}

.page-about__cert-list {
  display: grid;
  gap: 18px;
}

.page-about__cert-card {
  background: rgba(248, 249, 250, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.42);
  border-radius: var(--sis-radius);
  padding: 26px;
}

.page-about__cert-badge {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 2px solid var(--sis-gold);
  color: var(--sis-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.page-about__cert-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--sis-cloud);
  margin: 0 0 8px;
}

.page-about__cert-text {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(248, 249, 250, 0.72);
  margin: 0;
}

.page-about__cert-media .page-about__media-figure img {
  border: 2px solid rgba(212, 175, 55, 0.26);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.24);
}

.page-about__cert .page-about__media-figure figcaption {
  color: rgba(248, 249, 250, 0.66);
}

/* 合作伙伴与荣誉 */
.page-about__partners {
  padding: 72px 0;
}

.page-about__partners .page-about__head-center {
  margin-bottom: 44px;
}

.page-about__partners-list {
  display: grid;
  gap: 20px;
}

.page-about__partner-card {
  background: #fff;
  border-radius: var(--sis-radius);
  padding: 26px 28px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 22px rgba(10, 61, 46, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-about__partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--sis-gold), var(--sis-teal));
}

.page-about__partner-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(10, 61, 46, 0.15);
}

.page-about__partner-index {
  font-family: var(--sis-mono);
  font-size: 13px;
  font-weight: 800;
  color: var(--sis-gold-dark);
  letter-spacing: 0.1em;
}

.page-about__partner-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--sis-green);
  margin: 10px 0 8px;
}

.page-about__partner-text {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.72);
  margin: 0;
}

/* 继续了解 */
.page-about__next {
  background:
    radial-gradient(circle at 16% 26%, rgba(212, 175, 55, 0.2), transparent 34%),
    linear-gradient(140deg, var(--sis-green) 0%, var(--sis-green-deep) 100%);
  padding: 72px 0;
}

.page-about__next-inner {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 14px;
}

.page-about__next .page-about__head-sub {
  color: var(--sis-gold);
}

.page-about__next-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  line-height: 1.15;
  color: var(--sis-cloud);
  transform: skew(-4deg);
  margin: 0;
}

.page-about__next-text {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(248, 249, 250, 0.72);
  max-width: 38em;
  margin: 0;
}

.page-about__next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 16px;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about__origin-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about__partners-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 880px) {
  .page-about__timeline::before {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-about__timeline-item {
    width: 50%;
    padding: 0;
  }

  .page-about__timeline-item:nth-child(odd) {
    margin-right: auto;
    text-align: right;
    padding-right: 72px;
  }

  .page-about__timeline-item:nth-child(even) {
    margin-left: auto;
    padding-left: 72px;
  }

  .page-about__timeline-year {
    left: auto;
    right: -24px;
    top: 30px;
  }

  .page-about__timeline-item:nth-child(even) .page-about__timeline-year {
    right: auto;
    left: -24px;
  }

  .page-about__timeline-item::after {
    display: none;
  }
}

@media (min-width: 900px) {
  .page-about__split {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 52px;
  }

  .page-about__team-grid {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-about__cert-grid {
    grid-template-columns: 1.02fr 0.98fr;
    gap: 52px;
  }
}