/* ===== 多宝体育 · 品牌总览（/overview/）页面专属样式 ===== */

.page-about {
  --about-side: 176px;
  --about-pad: clamp(44px, 6vw, 86px);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(30px, 5vw, 64px) 0 clamp(28px, 4vw, 52px);
  background:
    radial-gradient(112% 82% at 92% -12%, rgba(255, 77, 28, .18), transparent 58%),
    radial-gradient(74% 62% at 2% -6%, rgba(0, 229, 168, .14), transparent 56%),
    var(--cream);
  border-bottom: 1px solid var(--line);
}

.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 2.6vw, 30px);
  font-size: 13px;
  font-weight: 500;
  color: var(--slate);
}

.page-about .about-crumb a {
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: color .2s ease, border-color .2s ease;
}

.page-about .about-crumb a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .about-hero h1 {
  margin: 0 0 clamp(16px, 2.2vw, 24px);
  max-width: 17em;
  font-family: var(--font-head);
  font-size: clamp(32px, 5.2vw, 60px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--midnight);
  text-wrap: balance;
}

.page-about .about-lede {
  margin: 0;
  max-width: 46em;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.68;
  color: var(--ink);
}

.page-about .about-hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: 1px;
  background: var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-about .about-hero-facts > div {
  background: var(--white);
  padding: clamp(14px, 1.7vw, 20px) clamp(14px, 1.9vw, 22px);
}

.page-about .about-hero-facts dt {
  margin: 0 0 7px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--slate);
}

.page-about .about-hero-facts dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: clamp(26px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--indigo);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero-facts dd span {
  margin-left: 5px;
  font-family: var(--font-body);
  font-size: .4em;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--slate);
}

.page-about .about-anchors {
  display: flex;
  gap: 8px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-bottom: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .about-anchors a {
  flex: none;
  padding: 8px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, .72);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--indigo);
  text-decoration: none;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-about .about-anchors a:hover,
.page-about .about-anchors a:focus-visible {
  background: var(--indigo);
  border-color: var(--indigo);
  color: var(--cream);
}

/* ---------- 章节骨架 ---------- */
.page-about .chap {
  padding: var(--about-pad) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 18px);
}

.page-about .chap--sand {
  background: var(--sand);
}

.page-about .chap--dark {
  background:
    radial-gradient(80% 100% at 100% 0%, rgba(23, 43, 92, .9), transparent 62%),
    var(--midnight);
  color: var(--cream);
  border-bottom-color: rgba(255, 248, 236, .1);
}

.page-about .chap-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-about .chap-side {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-strong);
}

.page-about .chap--dark .chap-side {
  border-bottom-color: rgba(255, 248, 236, .2);
}

.page-about .chap-num {
  font-family: var(--font-num);
  font-size: clamp(28px, 3.6vw, 50px);
  font-weight: 800;
  line-height: .88;
  letter-spacing: .02em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .chap-label {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-about .chap--dark .chap-label {
  color: rgba(255, 248, 236, .62);
}

.page-about .chap-body h2 {
  margin: 0 0 clamp(14px, 1.9vw, 22px);
  max-width: 21em;
  font-family: var(--font-head);
  font-size: clamp(23px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--midnight);
}

.page-about .chap--dark .chap-body h2 {
  color: var(--cream);
}

.page-about .chap-body > p {
  margin: 0 0 14px;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.74;
  color: var(--ink);
}

.page-about .chap--dark .chap-body > p {
  color: rgba(255, 248, 236, .8);
}

.page-about .chap-body > p.meta {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--slate);
  border-left: 3px solid var(--amber);
  padding-left: 12px;
}

.page-about .chap--dark .chap-body > p.meta {
  color: rgba(255, 248, 236, .66);
  border-left-color: var(--mint);
}

/* ---------- 三条内容线 ---------- */
.page-about .line-list {
  list-style: none;
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .line-item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 6px 16px;
  padding: clamp(16px, 2.2vw, 24px) clamp(16px, 2.2vw, 26px);
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--indigo);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}

.page-about .line-item--report {
  border-left-color: var(--amber);
}

.page-about .line-item--rule {
  border-left-color: var(--mint);
}

.page-about .line-idx {
  grid-row: 1 / -1;
  align-self: start;
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--slate);
}

.page-about .line-main h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--indigo);
}

.page-about .line-main p {
  margin: 0;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 改版历程时间轴 ---------- */
.page-about .timeline {
  position: relative;
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0 0 0 30px;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--indigo) 0%, var(--orange) 42%, var(--amber) 72%, var(--mint) 100%);
}

.page-about .tl-item {
  position: relative;
  padding-bottom: clamp(20px, 2.8vw, 32px);
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 16px;
  height: 16px;
  box-sizing: border-box;
  border-radius: var(--pill);
  background: var(--cream);
  border: 3px solid var(--indigo);
}

.page-about .tl-item--key::before {
  background: var(--orange);
  border-color: var(--orange);
}

.page-about .tl-item--key::after {
  content: "";
  position: absolute;
  left: -30px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: var(--pill);
  box-shadow: 0 0 0 0 rgba(255, 77, 28, .5);
  animation: aboutPulse 2.8s ease-out infinite;
  pointer-events: none;
}

@keyframes aboutPulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 77, 28, .45); }
  70% { box-shadow: 0 0 0 14px rgba(255, 77, 28, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 77, 28, 0); }
}

.page-about .tl-ver {
  display: inline-block;
  margin: 0 0 9px;
  padding: 3px 12px;
  border-radius: var(--pill);
  background: var(--sand);
  color: var(--indigo);
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: .06em;
}

.page-about .tl-item--key .tl-ver {
  background: var(--orange);
  color: var(--white);
}

.page-about .tl-item h3 {
  margin: 0 0 7px;
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--ink);
}

.page-about .tl-item p {
  margin: 0;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 图片容器 ---------- */
.page-about .about-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--sand);
  box-shadow: var(--shadow-soft);
}

.page-about .chap--dark .about-figure {
  border-color: rgba(255, 248, 236, .14);
  background: rgba(255, 248, 236, .06);
  box-shadow: none;
}

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

/* ---------- 编辑团队数据 ---------- */
.page-about .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(20px, 2.8vw, 32px) 0 0;
}

.page-about .stat {
  padding: clamp(14px, 1.8vw, 20px);
  border-radius: var(--radius-md);
  background: rgba(255, 248, 236, .07);
  border: 1px solid rgba(255, 248, 236, .14);
}

.page-about .stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--mint);
  font-variant-numeric: tabular-nums;
}

.page-about .stat:nth-child(2) .stat-num { color: var(--amber); }
.page-about .stat:nth-child(3) .stat-num { color: var(--orange); }
.page-about .stat:nth-child(4) .stat-num { color: var(--cream); }

.page-about .stat-label {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.5;
  font-weight: 500;
  color: rgba(255, 248, 236, .74);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .honor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-about .honor {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--pill);
  background: var(--white);
  border: 1px solid var(--line-strong);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--indigo);
}

.page-about .honor::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: var(--pill);
  background: var(--orange);
}

/* ---------- 年度观察 ---------- */
.page-about .observe-grid {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

.page-about .observe-item {
  padding: clamp(16px, 2.2vw, 24px);
  border-radius: var(--radius-md);
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--indigo);
}

.page-about .observe-item:nth-child(2) { border-top-color: var(--orange); }
.page-about .observe-item:nth-child(3) { border-top-color: var(--mint-ink); }

.page-about .observe-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--midnight);
}

.page-about .observe-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding: clamp(46px, 6vw, 88px) 0;
  background:
    radial-gradient(90% 120% at 88% 0%, rgba(255, 77, 28, .3), transparent 62%),
    radial-gradient(70% 100% at 6% 100%, rgba(0, 229, 168, .16), transparent 60%),
    var(--indigo);
  color: var(--cream);
}

.page-about .cta-inner h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 800;
  line-height: 1.18;
  color: var(--cream);
}

.page-about .cta-inner p {
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  max-width: 40em;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 248, 236, .82);
}

.page-about .cta-inner .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cta .btn--ghost {
  border-color: rgba(255, 248, 236, .4);
  color: var(--cream);
}

.page-about .about-cta .btn--ghost:hover,
.page-about .about-cta .btn--ghost:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
}

/* ---------- 滚动显现 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .62s ease, transform .62s cubic-bezier(.22, .68, .3, 1);
  transition-delay: calc(var(--i, 0) * 80ms);
  will-change: opacity, transform;
}

.page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .chap-grid {
    grid-template-columns: var(--about-side) minmax(0, 1fr);
    gap: clamp(26px, 4vw, 64px);
  }

  .page-about .chap-side {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-top: 6px;
    padding: 0 0 0 16px;
    border-bottom: 0;
    border-left: 2px solid var(--orange);
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
  }

  .page-about .chap--dark .chap-side {
    border-left-color: var(--mint);
  }

  .page-about .line-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 6px 22px;
  }

  .page-about .line-idx {
    font-size: 32px;
  }
}

@media (min-width: 1180px) {
  .page-about {
    --about-side: 196px;
  }
}

/* ---------- 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-about .tl-item--key::after {
    animation: none;
    box-shadow: none;
  }

  .page-about .about-anchors a {
    transition: none;
  }
}
</main>

.page-about {
  --i: 0.3s;
}