/* ===== 关于买球 · 页面专属样式 ===== */
.page-about {
  background: var(--color-bg-light);
  color: var(--color-text);
}

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

.page-about .media-frame img,
.page-about .about-hero-img img,
.page-about .about-capability-media img,
.page-about .about-network-map img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero-grid,
.page-about .about-timeline-layout,
.page-about .about-capability-layout,
.page-about .about-network-layout,
.page-about .about-values-grid,
.page-about .about-hero-grid > *,
.page-about .about-timeline-layout > *,
.page-about .about-capability-layout > *,
.page-about .about-network-layout > * {
  min-width: 0;
}

/* ===== 品牌使命 / Hero ===== */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    var(--color-dark);
  background-size: 32px 32px;
  color: var(--color-white);
  padding: calc(var(--header-total) + 48px) 0 72px;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  right: 22%;
  top: 0;
  width: 2px;
  height: 180px;
  background: linear-gradient(180deg, var(--color-gold), transparent);
  opacity: 0.45;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 96px;
  height: 96px;
  background: linear-gradient(135deg, transparent 50%, rgba(240, 180, 41, 0.32) 50%, rgba(240, 180, 41, 0.32) 100%);
  pointer-events: none;
}

.page-about .about-hero-grid {
  display: grid;
  gap: 36px;
  position: relative;
  z-index: 1;
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
  }
}

.page-about .about-hero .breadcrumbs {
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 24px;
}

.page-about .about-hero .breadcrumbs a {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-hero .breadcrumbs a:hover {
  color: var(--color-gold);
}

.page-about .about-hero-tag {
  margin-bottom: 16px;
}

.page-about .about-hero h1 {
  margin: 0 0 20px;
  font-size: 28px;
  line-height: 1.3;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--color-white);
}

@media (min-width: 640px) {
  .page-about .about-hero h1 {
    font-size: 36px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero h1 {
    font-size: 40px;
    max-width: 12em;
  }
}

.page-about .about-hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-gold);
  font-weight: 700;
  margin: 0 0 12px;
}

.page-about .about-hero-text {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero .btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--color-white);
}

.page-about .about-hero .btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(255, 255, 255, 0.06);
}

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

.page-about .about-hero-img {
  margin: 0;
  background: var(--color-dark-soft);
}

.page-about .about-hero-floating {
  display: inline-block;
  margin-top: 16px;
  padding: 8px 14px;
  border: 1px solid var(--color-border-dark);
  border-left-color: var(--color-gold);
  border-left-width: 3px;
  color: var(--color-teal);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

/* ===== 通用段首标题 ===== */
.page-about .about-section-head {
  margin-bottom: 40px;
  display: grid;
  gap: 6px;
}

.page-about .about-section-index {
  display: inline-block;
  width: fit-content;
  color: var(--color-gold);
  font-size: 13px;
  letter-spacing: 0.1em;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--color-gold);
  margin-bottom: 10px;
}

.page-about .about-section-head h2 {
  margin: 0;
  font-size: 28px;
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.page-about .about-section-head p {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.page-about .about-section-head--light h2 {
  color: var(--color-white);
}

.page-about .about-section-head--light p {
  color: rgba(255, 255, 255, 0.65);
}

/* ===== 发展历程 ===== */
.page-about .about-timeline-section,
.page-about .about-network-section {
  padding: 72px 0;
  background: var(--color-bg-light);
}

.page-about .about-timeline-layout {
  display: grid;
  gap: 48px;
}

@media (min-width: 900px) {
  .page-about .about-timeline-layout {
    grid-template-columns: 1.6fr 0.9fr;
    gap: 64px;
    align-items: start;
  }
}

.page-about .about-timeline {
  position: relative;
  padding-left: 28px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-border) 70%, rgba(217, 224, 232, 0) 100%);
}

.page-about .timeline-item {
  position: relative;
  padding-bottom: 32px;
}

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

.page-about .timeline-node {
  position: absolute;
  top: 24px;
  left: -18px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-bg-light);
  box-shadow: 0 0 0 2px var(--color-gold);
  z-index: 2;
}

.page-about .timeline-item[data-phase="current"] .timeline-node {
  box-shadow: 0 0 0 2px var(--color-gold), 0 0 0 8px rgba(240, 180, 41, 0.18);
  transform: scale(1.1);
}

.page-about .timeline-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 22px 20px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-about .timeline-card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 10px 28px rgba(11, 31, 58, 0.08);
}

.page-about .timeline-item[data-phase="current"] .timeline-card {
  border-color: var(--color-gold);
  background: linear-gradient(135deg, var(--color-white) 0%, #FFF9E8 100%);
}

.page-about .timeline-version {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-teal);
  margin-bottom: 6px;
}

.page-about .timeline-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.page-about .timeline-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.page-about .timeline-tags {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-about .timeline-tags .tag {
  text-decoration: none;
  display: inline-block;
}

/* 时间线侧栏 */
.page-about .about-timeline-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-about .about-aside-stat {
  position: relative;
  overflow: hidden;
  background: var(--color-dark);
  color: var(--color-white);
  padding: 28px 24px;
}

.page-about .about-aside-stat::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, transparent 50%, rgba(240, 180, 41, 0.55) 50%);
}

.page-about .about-stat-num {
  font-family: var(--font-mono);
  font-size: 42px;
  line-height: 1.1;
  font-weight: 900;
  color: var(--color-gold);
  margin: 12px 0;
}

.page-about .about-aside-stat p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
}

.page-about .about-aside-link {
  display: block;
  padding: 20px;
  text-decoration: none;
}

.page-about .about-aside-link h3 {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}

.page-about .about-aside-link p {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.page-about .about-link-more {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--color-teal);
}

/* ===== 技术能力 ===== */
.page-about .about-capability-section {
  background: var(--color-dark);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.page-about .about-capability-section::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-teal));
  opacity: 0.8;
  pointer-events: none;
}

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

@media (min-width: 900px) {
  .page-about .about-capability-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-capability-left {
  display: grid;
  gap: 24px;
}

.page-about .about-chart-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border-dark);
  padding: 24px 20px;
}

.page-about .about-card-title {
  color: var(--color-teal);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin-bottom: 16px;
}

.page-about .about-radar {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 auto;
}

.page-about .radar-ring {
  fill: none;
  stroke: rgba(255, 255, 255, 0.12);
  stroke-width: 1;
}

.page-about .radar-ring-outer {
  stroke: rgba(255, 255, 255, 0.28);
}

.page-about .radar-axis {
  stroke: rgba(255, 255, 255, 0.16);
  stroke-width: 1;
}

.page-about .radar-data {
  fill: var(--color-gold);
  fill-opacity: 0.28;
  stroke: var(--color-gold);
  stroke-width: 2;
  transition: fill-opacity 0.3s ease, stroke-width 0.3s ease;
}

.page-about .radar-dot {
  fill: var(--color-gold);
  stroke: var(--color-dark);
  stroke-width: 2;
}

.page-about .radar-label {
  fill: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-about .about-radar:hover .radar-data {
  fill-opacity: 0.5;
  stroke-width: 3;
}

.page-about .about-capability-media {
  margin: 0;
  background: rgba(255, 255, 255, 0.05);
}

.page-about .about-capability-media img {
  width: 100%;
}

.page-about .about-capability-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 640px) {
  .page-about .about-capability-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
}

.page-about .about-cap-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border-dark);
  padding: 18px 16px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-about .about-cap-item:hover {
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.08);
}

.page-about .about-cap-label {
  color: var(--color-teal);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-about .about-cap-value {
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 900;
  line-height: 1.15;
}

.page-about .about-cap-meta {
  color: rgba(255, 255, 255, 0.52);
  font-size: 12px;
  line-height: 1.6;
  margin-top: 6px;
}

/* ===== 服务网络 ===== */
.page-about .about-network-layout {
  display: grid;
  gap: 36px;
}

@media (min-width: 900px) {
  .page-about .about-network-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: start;
  }
}

.page-about .about-network-map {
  margin: 0;
}

.page-about .about-network-stats {
  display: grid;
  gap: 16px;
}

.page-about .network-stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 22px 20px;
  transition: border-color 0.3s ease;
}

.page-about .network-stat-card:hover {
  border-color: var(--color-gold);
}

.page-about .network-stat-card--dark {
  background: var(--color-dark);
  border-color: var(--color-dark);
}

.page-about .network-stat-card--dark:hover {
  border-color: var(--color-gold);
}

.page-about .network-stat-label {
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--color-teal);
  margin-bottom: 8px;
}

.page-about .network-stat-card--dark .network-stat-label {
  color: var(--color-gold);
}

.page-about .network-stat-value {
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-text);
}

.page-about .network-stat-card--dark .network-stat-value {
  color: var(--color-gold);
}

.page-about .network-stat-card p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}

.page-about .network-stat-card--dark p {
  color: rgba(255, 255, 255, 0.7);
}

/* ===== 品牌价值 ===== */
.page-about .about-values-section {
  padding: 72px 0;
  background: var(--color-white);
}

.page-about .about-values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 640px) {
  .page-about .about-values-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-about .value-card:nth-child(2) {
    transform: translateY(24px);
  }

  .page-about .value-card:nth-child(4) {
    transform: translateY(10px);
  }
}

.page-about .value-card {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  padding: 28px 24px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.page-about .value-card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 10px 28px rgba(11, 31, 58, 0.08);
}

.page-about .value-card--gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
}

.page-about .value-card--gold:hover {
  box-shadow: 0 10px 28px rgba(240, 180, 41, 0.25);
}

.page-about .value-card--outline {
  background: transparent;
}

.page-about .value-number {
  color: var(--color-teal);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.page-about .value-card--gold .value-number {
  color: var(--color-dark);
}

.page-about .value-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 900;
  color: var(--color-text);
}

.page-about .value-card--gold h3,
.page-about .value-card--gold p {
  color: var(--color-dark);
}

.page-about .value-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

/* CTA 区块 */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  margin-top: 64px;
  background: var(--color-dark);
  padding: 40px 28px;
  display: grid;
  gap: 24px;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-teal));
  pointer-events: none;
}

.page-about .about-cta::after {
  content: "MQ";
  position: absolute;
  right: -10px;
  bottom: -34px;
  font-family: var(--font-mono);
  font-size: 128px;
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-about .about-cta {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    padding: 48px;
  }
}

.page-about .about-cta-copy {
  position: relative;
  z-index: 1;
}

.page-about .about-cta-copy h3 {
  margin: 10px 0 8px;
  font-size: 22px;
  font-weight: 900;
  color: var(--color-white);
}

.page-about .about-cta-copy p {
  margin: 0;
  max-width: 480px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
}

.page-about .about-cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta .btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.page-about .about-cta .btn--ghost:hover {
  border-color: var(--color-gold);
  color: var(--color-gold);
  background: rgba(255, 255, 255, 0.06);
}

/* ===== 动态降级 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition: none !important;
    animation: none !important;
  }
}