/* ========== 乐鱼CN · 品牌故事 页面专属样式 ========== */

.page-about {
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, #0A1A3F 0%, #081226 100%);
  color: var(--c-text);
}

.page-about a:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 区块通用 ---------- */
.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.4;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-about .about-kicker::before {
  content: "";
  flex: 0 0 auto;
  width: 30px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
}

.page-about .about-section-head {
  margin-bottom: 44px;
}

.page-about .about-section-title {
  margin: 14px 0 0;
  letter-spacing: 0.01em;
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  padding: 64px 0 72px;
  overflow: hidden;
  background:
    radial-gradient(760px 300px at 80% -10%, rgba(255, 107, 53, 0.16), transparent 70%),
    radial-gradient(500px 260px at -8% 30%, rgba(247, 183, 51, 0.10), transparent 62%),
    linear-gradient(180deg, #0A1A3F 0%, #0C1E49 100%);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(247, 183, 51, 0.08) 0%, transparent 36%),
    radial-gradient(480px 200px at 92% 16%, rgba(255, 107, 53, 0.14), transparent 72%);
  pointer-events: none;
}

.page-about .about-hero-lines {
  position: absolute;
  top: 0;
  right: 0;
  width: 48%;
  height: 100%;
  background: repeating-linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.04) 0,
    rgba(255, 255, 255, 0.04) 1px,
    transparent 1px,
    transparent 14px
  );
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 44px;
}

.page-about .about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 42px;
  align-items: center;
}

.page-about .about-hero-title {
  margin: 22px 0 22px;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  text-wrap: balance;
}

.page-about .about-hero-title-accent {
  color: var(--c-accent);
}

.page-about .about-hero-lede {
  margin: 0 0 30px;
  max-width: 34em;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-about .about-hero-track {
  margin-bottom: 26px;
}

.page-about .about-hero-svg {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
}

.page-about .about-hero-svg path {
  fill: none;
  stroke-linecap: round;
}

.page-about .about-hero-svg path.about-hero-svg-line {
  stroke: var(--c-accent);
  stroke-width: 2;
  stroke-dasharray: 7 9;
}

.page-about .about-hero-svg path.about-hero-svg-line-sub {
  stroke: var(--c-gold);
  stroke-width: 1.5;
  stroke-dasharray: 3 9;
  stroke-opacity: 0.75;
}

.page-about .about-hero-svg circle {
  fill: var(--c-gold);
  stroke: var(--c-primary);
  stroke-width: 2;
}

.page-about .about-hero-track-note {
  display: block;
  margin-top: 10px;
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

.page-about .about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.page-about .about-hero-stat {
  padding: 18px 16px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
  transition: transform 0.35s var(--about-ease), border-color 0.35s ease;
}

.page-about .about-hero-stat:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 53, 0.42);
}

.page-about .about-hero-stat:last-child {
  border-color: rgba(247, 183, 51, 0.30);
  background: linear-gradient(135deg, rgba(247, 183, 51, 0.16), rgba(255, 255, 255, 0.04));
}

.page-about .about-hero-stat:last-child .stat-value {
  color: var(--c-gold);
}

.page-about .about-hero-stat .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.65rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.page-about .about-hero-stat .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
}

.page-about .about-hero-visual {
  position: relative;
}

.page-about .about-hero-media {
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: var(--shadow-panel);
}

.page-about .about-hero-figcaption {
  margin: 14px 0 0;
  text-align: right;
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

/* ---------- 起源章节 ---------- */
.page-about .about-origin {
  position: relative;
  padding: 96px 0;
  background:
    radial-gradient(680px 320px at 100% 10%, rgba(247, 183, 51, 0.10), transparent 62%),
    linear-gradient(180deg, rgba(247, 183, 51, 0.05), transparent 30%);
}

.page-about .about-origin-grid {
  display: grid;
  gap: 44px;
  align-items: start;
}

.page-about .about-origin-copy p {
  margin: 0 0 20px;
  font-size: 0.99rem;
  line-height: 1.85;
  color: var(--c-text);
}

.page-about .about-origin-quote {
  margin: 28px 0;
  padding: 6px 0 6px 20px;
  border-left: 3px solid var(--c-accent);
  background: linear-gradient(90deg, rgba(255, 107, 53, 0.12), transparent);
}

.page-about .about-origin-quote p {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.14rem;
  line-height: 1.65;
}

.page-about .about-origin-figure {
  margin: 0;
}

.page-about .about-origin-media {
  border-radius: var(--radius);
  border: 1px solid rgba(247, 183, 51, 0.18);
  box-shadow: var(--shadow-panel);
}

.page-about .about-origin-figure figcaption {
  margin-top: 14px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-about .about-origin-note {
  display: none;
}

/* ---------- 约战比试 ---------- */
.page-about .about-challenge {
  position: relative;
  padding: 96px 0;
  overflow: hidden;
  background:
    radial-gradient(700px 320px at 90% 12%, rgba(255, 107, 53, 0.14), transparent 64%),
    linear-gradient(180deg, #081226, #0A1A3F);
}

.page-about .about-challenge-shape {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 107, 53, 0.05), transparent 40%),
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 14px);
  clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
  pointer-events: none;
}

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

.page-about .about-challenge-grid {
  display: grid;
  gap: 40px;
}

.page-about .about-challenge-copy p {
  margin: 0 0 20px;
  font-size: 0.99rem;
  line-height: 1.85;
  color: var(--c-text);
}

.page-about .about-challenge-cards {
  display: grid;
  gap: 16px;
}

.page-about .about-challenge-card {
  position: relative;
  padding: 26px 24px 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius);
  background: var(--c-glass);
  overflow: hidden;
  transition: transform 0.35s var(--about-ease), border-color 0.35s ease, background-color 0.35s ease;
}

.page-about .about-challenge-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.45);
  background: var(--c-glass-strong);
}

.page-about .about-challenge-card-num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  color: var(--c-accent);
}

.page-about .about-challenge-card-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.02em;
}

.page-about .about-challenge-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 轮次更新 ---------- */
.page-about .about-updates {
  position: relative;
  padding: 96px 0;
  background:
    radial-gradient(640px 300px at 10% 30%, rgba(247, 183, 51, 0.08), transparent 64%),
    linear-gradient(180deg, transparent, rgba(247, 183, 51, 0.04) 50%, transparent);
}

.page-about .about-updates-layout {
  display: grid;
  gap: 48px;
  align-items: center;
}

.page-about .about-updates-copy p {
  margin: 0 0 20px;
  font-size: 0.99rem;
  line-height: 1.85;
  color: var(--c-text);
}

.page-about .about-updates-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-updates-point {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 0.88rem;
  color: var(--c-muted);
}

.page-about .about-updates-point .tag,
.page-about .about-updates-point .tag-gold {
  flex: 0 0 auto;
}

.page-about .about-updates-diagram {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  padding: 40px 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: calc(var(--radius) + 4px);
  background:
    radial-gradient(360px 260px at 50% 0%, rgba(247, 183, 51, 0.12), transparent 70%),
    rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.page-about .about-updates-ring {
  width: 190px;
  height: 190px;
  padding: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(
    from 210deg,
    var(--c-accent) 0deg,
    var(--c-gold) 150deg,
    rgba(255, 255, 255, 0.10) 150deg 360deg
  );
  box-shadow: 0 0 40px rgba(247, 183, 51, 0.12);
}

.page-about .about-updates-ring-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--c-primary);
  text-align: center;
}

.page-about .about-updates-ring-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  letter-spacing: 0.02em;
  color: var(--c-gold);
}

.page-about .about-updates-ring-label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-about .about-updates-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  width: 100%;
}

.page-about .about-updates-index li {
  position: relative;
  padding: 12px 16px 12px 44px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--c-text);
}

.page-about .about-updates-index li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.16);
  transform: translateY(-50%);
}

.page-about .about-updates-index-note {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--c-muted);
}

/* ---------- 里程碑 ---------- */
.page-about .about-milestones {
  position: relative;
  padding: 96px 0 104px;
  background:
    radial-gradient(760px 340px at 4% 20%, rgba(247, 183, 51, 0.10), transparent 62%),
    #081226;
}

.page-about .about-milestones-intro {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-about .about-timeline {
  position: relative;
  margin: 48px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    rgba(247, 183, 51, 0.70),
    rgba(255, 107, 53, 0.50) 55%,
    rgba(247, 183, 51, 0.18)
  );
}

.page-about .about-timeline-item {
  position: relative;
  margin-bottom: 26px;
  padding-left: 58px;
}

.page-about .about-timeline-marker {
  position: absolute;
  left: 10px;
  top: 22px;
  width: 24px;
  height: 24px;
  border: 3px solid var(--c-accent);
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, 0.16);
}

.page-about .about-timeline-marker span {
  display: none;
}

.page-about .about-timeline-card {
  padding: 22px 20px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(255, 255, 255, 0.09);
  transition: transform 0.35s var(--about-ease), border-color 0.35s ease;
}

.page-about .about-timeline-card:hover {
  transform: translateY(-3px);
  border-color: rgba(247, 183, 51, 0.36);
}

.page-about .about-timeline-card .tag,
.page-about .about-timeline-card .tag-gold {
  display: inline-block;
  margin-bottom: 10px;
}

.page-about .about-timeline-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.18rem;
  letter-spacing: 0.02em;
}

.page-about .about-timeline-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-about .about-timeline-media-item {
  margin: 32px 0 30px;
  padding-left: 0;
}

.page-about .about-timeline-media {
  margin-left: 58px;
}

.page-about .about-timeline-media .media-frame {
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}

.page-about .about-timeline-media-note {
  margin: 12px 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-align: right;
  color: var(--c-muted);
}

/* ---------- 结尾 ---------- */
.page-about .about-closing {
  position: relative;
  padding: 88px 0 110px;
  background: linear-gradient(180deg, #081226 0%, var(--c-dark) 100%);
}

.page-about .about-closing-panel {
  position: relative;
  padding: 56px 24px 48px;
  border: 1px solid rgba(247, 183, 51, 0.22);
  border-radius: 20px;
  text-align: center;
  background:
    radial-gradient(500px 240px at 50% 0%, rgba(247, 183, 51, 0.18), transparent 68%),
    linear-gradient(135deg, rgba(255, 107, 53, 0.14), rgba(10, 26, 63, 0.88) 42%, rgba(5, 10, 24, 0.96));
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-about .about-closing-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
}

.page-about .about-closing-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  line-height: 1.15;
}

.page-about .about-closing-copy {
  max-width: 34em;
  margin: 0 auto 24px;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-about .about-closing-trust {
  justify-content: center;
  margin-bottom: 30px;
}

.page-about .about-closing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

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

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

@media (min-width: 920px) {
  .page-about .about-hero {
    padding: 88px 0 112px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: 56px;
  }

  .page-about .about-hero-copy {
    order: 1;
  }

  .page-about .about-hero-visual {
    order: 2;
  }

  .page-about .about-origin,
  .page-about .about-challenge,
  .page-about .about-updates {
    padding: 128px 0;
  }

  .page-about .about-origin-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
  }

  .page-about .about-origin-figure {
    margin-top: 12px;
  }

  .page-about .about-origin-note {
    display: inline-block;
    position: absolute;
    right: 26px;
    top: 300px;
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: rgba(247, 183, 51, 0.55);
  }

  .page-about .about-challenge-grid {
    display: block;
  }

  .page-about .about-challenge-copy {
    max-width: 760px;
    margin-bottom: 52px;
  }

  .page-about .about-challenge-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-about .about-updates-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 68px;
  }

  .page-about .about-milestones {
    padding: 128px 0 148px;
  }

  .page-about .about-milestones-intro {
    font-size: 1.08rem;
  }

  .page-about .about-timeline {
    margin-top: 56px;
  }

  .page-about .about-timeline::before {
    left: 173px;
  }

  .page-about .about-timeline-item {
    margin-bottom: 34px;
    padding-left: 190px;
  }

  .page-about .about-timeline-marker {
    left: 148px;
    top: 16px;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    box-shadow: 0 0 0 8px rgba(255, 107, 53, 0.14);
  }

  .page-about .about-timeline-marker span {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--c-accent);
  }

  .page-about .about-timeline-card {
    padding: 28px 28px 26px;
  }

  .page-about .about-timeline-card h3 {
    font-size: 1.28rem;
  }

  .page-about .about-timeline-media-item {
    margin: 36px 0 44px;
    padding-left: 190px;
  }

  .page-about .about-timeline-media {
    margin-left: 0;
  }

  .page-about .about-closing {
    padding: 104px 0 120px;
  }

  .page-about .about-closing-panel {
    padding: 72px 40px 60px;
  }
}