/* ============ 新世纪体育赛 · 价值主张 /values/ ============ */

.page-about {
  --about-glow: radial-gradient(circle at 84% 10%, rgba(47, 240, 214, 0.16), transparent 62%);
  --about-card-bg: linear-gradient(150deg, rgba(19, 34, 65, 0.92), rgba(7, 14, 34, 0.78));
}

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

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding-top: clamp(24px, 4vw, 44px);
  padding-bottom: clamp(44px, 7vw, 80px);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -110px;
  width: min(520px, 72vw);
  height: min(520px, 72vw);
  border-radius: 50%;
  background: var(--about-glow);
  pointer-events: none;
}

.page-about .about-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 22px;
}

.page-about .about-hero-main {
  position: relative;
  padding-bottom: 24px;
}

.page-about .about-hero-main::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 104px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--cyan), var(--blue) 72%, transparent);
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 首屏信息面板 */

.page-about .about-hero-aside {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--about-card-bg);
  box-shadow: var(--shadow-card);
}

.page-about .about-aside-label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-low);
}

.page-about .about-signal-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-about .about-signal {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-top: 1px dashed var(--line);
}

.page-about .about-signal:first-child {
  border-top: 0;
  padding-top: 0;
}

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

.page-about .about-signal-value {
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--cyan);
}

.page-about .about-signal-value .unit {
  margin-left: 5px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
}

.page-about .about-signal-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-mid);
}

/* ---------- 三件长期在做的事 ---------- */

.page-about .about-pillars {
  padding-top: clamp(40px, 6vw, 72px);
}

.page-about .about-pillars-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-about .about-rail-lede {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-about .about-rail-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-rail-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(19, 34, 65, 0.42);
  font-size: 15px;
  color: var(--text-hi);
}

.page-about .about-rail-item .mono {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .about-stream {
  display: grid;
  gap: 18px;
}

.page-about .about-card {
  position: relative;
  padding: 28px 24px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--about-card-bg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-about .about-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--cyan), rgba(60, 124, 255, 0));
}

.page-about .about-card-index {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.page-about .about-card-title {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.4vw, 23px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--text-hi);
}

.page-about .about-card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-about .about-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

@media (hover: hover) {
  .page-about .about-card:hover {
    border-color: var(--line-strong);
    transform: translateY(-3px);
  }
}

/* ---------- 通勤场景 ---------- */

.page-about .about-scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-about .about-scene-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.page-about .about-scene-body {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-scene-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-about .about-scene-points {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-scene-points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-mid);
}

.page-about .about-scene-points li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(47, 240, 214, 0.72);
}

/* ---------- 数据节奏 ---------- */

.page-about .about-cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 30px;
}

.page-about .about-cadence-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  align-self: start;
}

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

.page-about .about-cadence-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-about .about-cadence-item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text-hi);
}

.page-about .about-cadence-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-mid);
}

/* ---------- 使用问答 ---------- */

.page-about .about-faq-list {
  margin-top: 28px;
}

.page-about .about-faq-head {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
}

.page-about .about-faq-head .accordion-trigger {
  font: inherit;
  color: var(--text-hi);
}

.page-about .accordion-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
}

/* ---------- 下一步 ---------- */

.page-about .about-cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(19, 34, 65, 0.95), rgba(4, 9, 26, 0.92));
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-about .about-cta-body {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: clamp(26px, 5vw, 44px);
}

.page-about .about-cta-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-mid);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-about .about-cta-media {
  margin: 0;
  border: 0;
  border-radius: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.page-about .about-cta-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    gap: 48px;
    align-items: start;
  }

  .page-about .about-scene-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: center;
  }

  .page-about .about-cadence-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-cta-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }

  .page-about .about-cta-media {
    aspect-ratio: auto;
    height: 100%;
    min-height: 300px;
  }
}

@media (min-width: 960px) {
  .page-about .about-pillars-grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: 56px;
    align-items: start;
  }

  .page-about .about-rail {
    position: sticky;
    top: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-card {
    transition: none;
  }

  .page-about .about-card:hover {
    transform: none;
  }
}