/* ========== KAIYUN竞猜 关于品牌页 专属样式 ========== */
.page-about {
  --about-hero-aura: rgba(0, 255, 136, 0.1);
  --about-ring-track: rgba(255, 255, 255, 0.07);
  --about-card-hover: #131C2D;
}

/* ---------- 首屏 Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: 2.5rem 3.5rem;
  background: var(--grad-header);
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  right: -120px;
  top: -80px;
  background: radial-gradient(circle, var(--about-hero-aura) 0%, transparent 68%);
  pointer-events: none;
}
.page-about .about-hero-mega {
  position: absolute;
  top: 4.5rem;
  left: -0.1em;
  font-family: var(--font-display);
  font-size: clamp(5rem, 16vw, 12rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: 0.02em;
  pointer-events: none;
  z-index: 1;
  white-space: nowrap;
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2rem;
}
.page-about .about-hero-copy {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}
.page-about .about-hero-kicker {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0;
}
.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--c-text);
}
.page-about .about-hero-lead {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--c-muted);
  margin: 0;
  max-width: 34em;
}
.page-about .about-hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.5rem;
}
.page-about .about-hero-metric {
  flex: 1 1 7.5rem;
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  transition: border-color var(--tr), background-color var(--tr);
}
.page-about .about-hero-metric:hover {
  border-color: rgba(0, 255, 136, 0.4);
}
.page-about .about-hero-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.1;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.page-about .about-hero-label {
  display: block;
  font-size: 0.8rem;
  color: var(--c-muted);
  margin-top: 0.2rem;
}
.page-about .about-hero-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}
.page-about .about-hero-media::after {
  content: "BRAND / 00";
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  padding: 0.25rem 0.55rem;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-text);
  background: rgba(10, 14, 23, 0.72);
  border-radius: 4px;
}
.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 01 品牌档案 ---------- */
.page-about .about-archive .section-head {
  margin-bottom: 2rem;
}
.page-about .about-archive-grid {
  display: grid;
  gap: 1.5rem;
}
.page-about .about-archive-copy {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}
.page-about .about-archive-copy p {
  margin: 0;
  line-height: 1.85;
  color: var(--c-muted);
}
.page-about .about-archive-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}
.page-about .about-archive-list li {
  position: relative;
  padding-left: 1.4rem;
  line-height: 1.65;
  color: var(--c-text);
  font-size: 0.95rem;
}
.page-about .about-archive-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 2px;
  background: var(--grad-accent);
  border-radius: 2px;
}
.page-about .about-archive-link a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-blue);
  text-decoration: none;
  transition: color var(--tr);
}
.page-about .about-archive-link a:hover,
.page-about .about-archive-link a:focus-visible {
  color: var(--c-accent);
  text-decoration: underline;
}
.page-about .about-archive-quote {
  position: relative;
  padding: 1.75rem 1.5rem 1.5rem 1.75rem;
  background: linear-gradient(160deg, rgba(0, 255, 136, 0.08) 0%, rgba(0, 191, 255, 0.06) 100%);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-gold);
  border-radius: var(--radius);
  align-self: start;
}
.page-about .about-archive-quote blockquote {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--c-text);
}
.page-about .about-archive-quote-mark {
  display: block;
  margin-top: 1rem;
  color: var(--c-muted);
  font-size: 0.85rem;
}

/* ---------- 02 发展历程 ---------- */
.page-about .about-timeline-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-about .about-timeline-list::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-accent) 0%, var(--c-blue) 100%);
  opacity: 0.35;
  border-radius: 2px;
}
.page-about .about-timeline-item {
  position: relative;
  padding-left: 2.5rem;
}
.page-about .about-timeline-item::after {
  content: "";
  position: absolute;
  left: 21px;
  top: calc(1.5rem + 8px);
  width: 22px;
  height: 2px;
  background: rgba(255, 215, 0, 0.5);
  transform: skewX(-18deg);
  transform-origin: left center;
  pointer-events: none;
}
.page-about .about-timeline-node {
  position: absolute;
  left: 3px;
  top: 1.5rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.12), 0 0 16px rgba(255, 215, 0, 0.35);
  border: 2px solid #0A0E17;
  transition: box-shadow var(--tr), transform var(--tr);
  z-index: 1;
}
.page-about .about-timeline-card {
  position: relative;
  padding: 1.25rem 1.25rem 1.15rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--tr), transform var(--tr), background-color var(--tr);
}
.page-about .about-timeline-item:hover .about-timeline-node,
.page-about .about-timeline-item:focus-within .about-timeline-node {
  box-shadow: 0 0 0 6px rgba(255, 215, 0, 0.2), 0 0 22px rgba(255, 215, 0, 0.6);
  transform: scale(1.08);
}
.page-about .about-timeline-item:hover .about-timeline-card,
.page-about .about-timeline-item:focus-within .about-timeline-card {
  border-color: rgba(0, 255, 136, 0.45);
  transform: translateY(-2px);
  background: var(--about-card-hover);
}
.page-about .about-timeline-era {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: rgba(0, 255, 136, 0.1);
  color: var(--c-accent);
}
.page-about .about-timeline-card h3 {
  margin: 0.65rem 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--c-text);
}
.page-about .about-timeline-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--c-muted);
}

/* ---------- 03 数据规模 ---------- */
.page-about .about-data-grid {
  display: grid;
  gap: 2rem;
}
.page-about .about-data-copy {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}
.page-about .about-data-copy > p {
  margin: 0;
  line-height: 1.85;
  color: var(--c-muted);
}
.page-about .about-data-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}
.page-about .about-data-list li {
  position: relative;
  padding-left: 1.4rem;
  line-height: 1.65;
  color: var(--c-text);
  font-size: 0.92rem;
}
.page-about .about-data-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 2px;
  background: var(--grad-accent);
}
.page-about .about-data-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  margin-top: 0.25rem;
}
.page-about .about-data-image img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-data-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  color: var(--c-muted);
  background: rgba(10, 14, 23, 0.82);
  border-radius: 0 var(--radius-sm) 0 0;
}
.page-about .about-data-source {
  font-size: 0.78rem;
  color: var(--c-muted);
  margin-top: -0.25rem;
}
.page-about .about-data-side {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}
.page-about .about-ring-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.page-about .about-ring {
  flex: 1 1 8.5rem;
  min-width: 8rem;
  max-width: 10.5rem;
  text-align: center;
  padding: 1rem 0.5rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  transition: border-color var(--tr);
}
.page-about .about-ring:hover {
  border-color: rgba(0, 255, 136, 0.45);
}
.page-about .about-ring svg {
  display: block;
  width: 100%;
  height: auto;
}
.page-about .about-ring-track {
  stroke: var(--about-ring-track);
}
.page-about .about-ring-fill {
  stroke: var(--c-accent);
  stroke-dasharray: 339;
  animation: about-ring-draw 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}
.page-about .about-ring-fill--blue {
  stroke: var(--c-blue);
}
.page-about .about-ring-fill--gold {
  stroke: var(--c-gold);
}
.page-about .about-ring-text {
  fill: var(--c-text);
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
}
.page-about .about-ring-text--sm {
  font-size: 23px;
}
.page-about .about-ring-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.82rem;
  color: var(--c-muted);
}
.page-about .about-data-note {
  padding: 1.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 191, 255, 0.08));
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
}
.page-about .about-data-note-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.page-about .about-data-note p {
  margin: 0.4rem 0 0.8rem;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--c-muted);
}

@keyframes about-ring-draw {
  from {
    stroke-dashoffset: 339;
  }
  to {
    stroke-dashoffset: 0;
  }
}

/* ---------- 04 团队与资质 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: 2rem;
}
.page-about .about-team-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line);
  align-self: start;
}
.page-about .about-team-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .about-team-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  color: var(--c-muted);
  background: rgba(10, 14, 23, 0.82);
  border-radius: 0 var(--radius-sm) 0 0;
}
.page-about .about-team-copy {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}
.page-about .about-team-copy > p {
  margin: 0;
  line-height: 1.85;
  color: var(--c-muted);
}
.page-about .about-team-qualify {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.page-about .about-team-qualify li {
  display: flex;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  transition: border-color var(--tr), background-color var(--tr);
}
.page-about .about-team-qualify li:hover {
  border-color: rgba(0, 191, 255, 0.4);
  background: var(--about-card-hover);
}
.page-about .about-team-qualify-icon {
  flex: 0 0 auto;
  width: 1.5rem;
  height: 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--grad-accent);
  color: #0A0E17;
}
.page-about .about-team-qualify strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--c-text);
}
.page-about .about-team-qualify li span:last-child {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ---------- 05 荣誉与认可 ---------- */
.page-about .about-honor-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
.page-about .about-honor-card {
  position: relative;
  padding: 1.6rem 1.4rem;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--tr), transform var(--tr);
}
.page-about .about-honor-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-accent);
  opacity: 0;
  transition: opacity var(--tr);
}
.page-about .about-honor-card:hover {
  border-color: rgba(0, 255, 136, 0.45);
  transform: translateY(-2px);
}
.page-about .about-honor-card:hover::before {
  opacity: 1;
}
.page-about .about-honor-card-index {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-gold);
  margin-bottom: 0.75rem;
}
.page-about .about-honor-card-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-text);
}
.page-about .about-honor-card-desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--c-muted);
}
.page-about .about-honor-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
}
.page-about .about-honor-back {
  font-size: 0.85rem;
  color: var(--c-muted);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.3);
  transition: color var(--tr), border-color var(--tr);
}
.page-about .about-honor-back:hover {
  color: var(--c-blue);
  border-bottom-color: var(--c-blue);
}

/* ---------- 尾部 CTA ---------- */
.page-about .about-next {
  padding-block: 1rem 4rem;
}
.page-about .about-next-panel {
  position: relative;
  padding: 2.25rem 1.5rem;
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.1) 0%, rgba(0, 191, 255, 0.08) 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  text-align: center;
  overflow: hidden;
}
.page-about .about-next-panel::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.12) 0%, transparent 70%);
  pointer-events: none;
}
.page-about .about-next-kicker {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
}
.page-about .about-next-panel h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-text);
}
.page-about .about-next-panel > p {
  margin: 0 auto 1.5rem;
  max-width: 42em;
  line-height: 1.75;
  color: var(--c-muted);
  font-size: 0.95rem;
}
.page-about .about-next-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}
.page-about .about-next-actions .btn {
  text-decoration: none;
}

/* ---------- 桌面端栅格强化 ---------- */
@media (min-width: 480px) {
  .page-about .about-hero-metric {
    flex: 1 1 6.5rem;
  }
}

@media (min-width: 820px) {
  .page-about .about-hero {
    padding-block: 4rem 5rem;
  }
  .page-about .about-hero-inner {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: 3rem;
  }
  .page-about .about-hero-metrics {
    gap: 1rem;
  }
  .page-about .about-archive-grid {
    grid-template-columns: 7fr 5fr;
    gap: 2.5rem;
  }
  .page-about .about-timeline-list {
    max-width: 860px;
    margin-inline: auto;
  }
  .page-about .about-timeline-card {
    padding: 1.5rem 1.75rem;
  }
  .page-about .about-data-grid {
    grid-template-columns: 6fr 5fr;
    gap: 2.5rem;
  }
  .page-about .about-team-grid {
    grid-template-columns: 5fr 7fr;
    gap: 2.5rem;
  }
  .page-about .about-honor-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-next-panel {
    padding: 3rem 2.5rem;
  }
}

/* ---------- 减弱动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-ring-fill {
    animation: none;
    stroke-dashoffset: 0;
  }
  .page-about .about-hero-metric,
  .page-about .about-archive-link a,
  .page-about .about-timeline-card,
  .page-about .about-timeline-node,
  .page-about .about-ring,
  .page-about .about-team-qualify li,
  .page-about .about-honor-card,
  .page-about .about-honor-back {
    transition: none;
  }
  .page-about .about-timeline-card:hover,
  .page-about .about-honor-card:hover {
    transform: none;
  }
}