/* ===== YOBO竞技 品牌档案页 /company/ ===== */
.page-about {
  background: var(--deep-green);
  color: var(--cream);
  overflow-x: hidden;
}

/* ---------- Hero ---------- */
.about-hero {
  position: relative;
  padding: calc(var(--header-height) + 42px) 0 44px;
  background:
    linear-gradient(125deg, rgba(212, 168, 66, 0.10) 0%, transparent 46%),
    linear-gradient(115deg, var(--deep-green) 0%, #0E4A36 58%, var(--moss-green) 150%);
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 44%;
  height: 100%;
  background: repeating-linear-gradient(-45deg, rgba(212, 168, 66, 0.10) 0 2px, transparent 2px 10px);
  clip-path: polygon(16% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.about-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 18px;
  background: var(--gold);
  clip-path: polygon(0 100%, calc(100% - 40px) 0, 100% 100%);
  opacity: 0.5;
  pointer-events: none;
}
.about-hero .breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  font-size: 13px;
}
.about-hero .breadcrumb a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.about-hero .breadcrumb a:hover {
  border-color: var(--gold);
}
.about-hero .breadcrumb .breadcrumb-item[aria-current="page"] {
  color: rgba(245, 240, 230, 0.72);
}
.about-hero .breadcrumb-sep {
  color: rgba(212, 168, 66, 0.5);
}
.about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
}
.about-hero-copy {
  max-width: 720px;
}
.about-hero-kicker {
  display: inline-block;
  font-family: var(--data-font);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(212, 168, 66, 0.45);
  background: rgba(212, 168, 66, 0.08);
  padding: 6px 12px 6px 10px;
  margin-bottom: 18px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.about-hero h1 {
  font-family: var(--heading-font);
  font-size: clamp(32px, 7vw, 68px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--cream);
  margin: 0 0 18px;
}
.about-hero-lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.82);
  margin: 0;
  max-width: 640px;
}
.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.about-btn-ghost {
  background: transparent;
  border: 1px solid rgba(212, 168, 66, 0.75);
  color: var(--gold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-family: var(--body-font);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.about-btn-ghost:hover {
  background: rgba(212, 168, 66, 0.12);
  color: var(--cream);
  border-color: var(--gold);
}
.about-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(212, 168, 66, 0.24);
  border: 1px solid rgba(212, 168, 66, 0.2);
  margin: 0;
  align-self: center;
}
.about-hero-stat {
  background: rgba(11, 61, 46, 0.92);
  padding: 18px 14px;
}
.about-hero-stat dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(245, 240, 230, 0.62);
}
.about-hero-stat dd {
  font-family: var(--data-font);
  font-size: clamp(22px, 4vw, 32px);
  line-height: 1.1;
  font-weight: 600;
  color: var(--gold);
  margin: 6px 0 0;
}
.about-hero .trust-statement {
  position: relative;
  z-index: 1;
  margin: 32px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(212, 168, 66, 0.22);
  font-size: 13px;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.68);
  max-width: 720px;
}

/* ---------- 通用面板 ---------- */
.about-panel {
  position: relative;
  padding: 56px 0 64px;
}
.about-panel[id] {
  scroll-margin-top: calc(var(--header-height) + 16px);
}
.about-section-head {
  margin-bottom: 36px;
  max-width: 780px;
}
.about-section-num {
  display: block;
  font-family: var(--heading-font);
  font-size: clamp(56px, 13vw, 104px);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: 0.01em;
  color: var(--gold);
  opacity: 0.92;
}
.about-section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  font-family: var(--data-font);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}
.about-section-label::before {
  content: '';
  width: 22px;
  height: 2px;
  background: currentColor;
}
.about-section-head h2 {
  font-family: var(--heading-font);
  font-size: clamp(24px, 4.4vw, 42px);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.08;
  letter-spacing: 0.03em;
  margin: 10px 0 0;
}
.about-section-desc {
  font-size: 15px;
  line-height: 1.75;
  max-width: 720px;
  margin-bottom: 32px;
}

/* ---------- 01 我们是谁 ---------- */
.about-who {
  background: var(--deep-green);
}
.about-who-grid {
  display: grid;
  gap: 36px;
}
.about-who-text p {
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 18px;
  color: rgba(245, 240, 230, 0.85);
}
.about-mission-callout {
  margin-top: 28px;
  padding: 20px;
  border: 1px solid rgba(212, 168, 66, 0.3);
  background: linear-gradient(135deg, rgba(212, 168, 66, 0.12), transparent 60%);
}
.about-mission-label {
  display: block;
  font-family: var(--data-font);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 8px;
}
.about-mission-callout p {
  font-size: 15px;
  font-weight: 500;
  color: var(--cream);
}
.about-who-cards {
  display: grid;
  gap: 14px;
}
.about-value-card {
  background: rgba(245, 240, 230, 0.04);
  border-left: 2px solid var(--gold);
  padding: 20px 20px 22px;
  transition: transform 0.3s ease, background 0.3s ease;
}
.about-value-card:hover {
  transform: translateY(-4px);
  background: rgba(245, 240, 230, 0.07);
}
.about-value-num {
  font-family: var(--data-font);
  font-size: 14px;
  color: var(--gold);
}
.about-value-card h3 {
  font-family: var(--heading-font);
  font-size: 24px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 6px 0 8px;
  color: var(--cream);
}
.about-value-card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.8);
  margin: 0;
}

/* ---------- 02 发展历程 ---------- */
.about-timeline-section {
  background: linear-gradient(180deg, #E7E0D2 0%, #F1EBDF 100%);
  color: var(--ink-black);
}
.about-timeline-section .about-section-head h2 {
  color: var(--ink-black);
}
.about-timeline-section .about-section-label {
  color: var(--terracotta);
}
.about-timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}
.about-timeline::before {
  content: '';
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--moss-green) 90%);
  opacity: 0.35;
}
.about-timeline-item {
  position: relative;
  padding-left: 34px;
  margin-bottom: 32px;
}
.about-timeline-dot {
  position: absolute;
  left: 4px;
  top: 22px;
  width: 12px;
  height: 12px;
  background: var(--gold);
  border: 2px solid var(--cream);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(212, 168, 66, 0.18);
}
.about-timeline-body {
  position: relative;
  background: #FDFBF4;
  border: 1px solid rgba(11, 61, 46, 0.07);
  border-left: 3px solid var(--gold);
  padding: 20px 20px 18px;
  box-shadow: 0 10px 30px rgba(11, 61, 46, 0.10);
}
.about-timeline-body::after {
  content: '';
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 18px;
  height: 18px;
  background: var(--gold);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.2;
}
.about-timeline-badge {
  display: inline-block;
  background: var(--dark-red);
  color: var(--cream);
  font-family: var(--data-font);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 8px;
  margin-bottom: 12px;
}
.about-timeline-year {
  margin: 0 0 4px;
  font-family: var(--data-font);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: 0.02em;
}
.about-timeline-body h3 {
  margin: 0 0 8px;
  font-family: var(--heading-font);
  font-size: 23px;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-black);
}
.about-timeline-body > p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock-gray);
}
.about-timeline-details {
  margin-top: 10px;
  border-top: 1px solid rgba(11, 61, 46, 0.12);
  padding-top: 8px;
}
.about-timeline-details summary {
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--deep-green);
  padding: 6px 0;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.about-timeline-details summary::-webkit-details-marker {
  display: none;
}
.about-timeline-details summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.about-timeline-details summary::before {
  content: '+';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-family: var(--data-font);
  font-weight: 700;
  color: var(--deep-green);
  background: var(--gold);
  font-size: 14px;
  line-height: 1;
}
.about-timeline-details[open] summary::before {
  content: '−';
}
.about-timeline-details .about-details-close {
  display: none;
}
.about-timeline-details[open] .about-details-open {
  display: none;
}
.about-timeline-details[open] .about-details-close {
  display: inline;
}
.about-timeline-details p {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-black);
  background: rgba(11, 61, 46, 0.05);
  padding: 10px 12px;
}
.about-timeline-media {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  margin-top: 16px;
  border: 1px solid rgba(11, 61, 46, 0.1);
}

/* ---------- 03 技术实力与数据指标 ---------- */
.about-tech {
  background:
    radial-gradient(circle at 88% 8%, rgba(212, 168, 66, 0.10) 0%, transparent 26%),
    var(--deep-green);
}
.about-tech-layout {
  display: grid;
  gap: 32px;
}
.about-tech-content > p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.84);
  margin: 0 0 20px;
}
.about-tech-pipeline {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}
.about-tech-pipeline li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(212, 168, 66, 0.16);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(245, 240, 230, 0.78);
}
.about-tech-pipeline li:first-child {
  border-top: 1px solid rgba(212, 168, 66, 0.16);
}
.about-tech-pipeline li span {
  display: block;
  font-family: var(--heading-font);
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 2px;
}
.about-league-coverage {
  margin-top: 20px;
  padding: 18px 16px;
  background: rgba(245, 240, 230, 0.05);
  border-left: 2px solid var(--moss-green);
}
.about-league-label {
  display: block;
  font-family: var(--data-font);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--moss-green);
  margin-bottom: 8px;
}
.about-league-coverage p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--cream);
}
.about-tech-figure {
  margin: 0;
}
.about-tech-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid rgba(212, 168, 66, 0.25);
}
.about-tech-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: rgba(245, 240, 230, 0.55);
}
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 44px 0 0;
  background: rgba(212, 168, 66, 0.22);
  border: 1px solid rgba(212, 168, 66, 0.22);
}
.about-stat-card {
  background: var(--deep-green);
  padding: 22px 14px;
  text-align: center;
}
.about-stat-card dt {
  font-family: var(--data-font);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}
.about-stat-card dd {
  margin: 8px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(245, 240, 230, 0.72);
}

/* ---------- 04 资质与安全认证 ---------- */
.about-cert {
  background:
    radial-gradient(circle at 84% 16%, rgba(212, 168, 66, 0.12) 0%, transparent 34%),
    linear-gradient(150deg, #0E4A36 0%, #0A3C2E 55%, #082B21 100%);
}
.about-cert-grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}
.about-cert-card {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 14px;
  align-items: start;
  background: rgba(245, 240, 230, 0.05);
  border: 1px solid rgba(212, 168, 66, 0.28);
  padding: 20px 18px;
  transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}
.about-cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 168, 66, 0.7);
  background: rgba(245, 240, 230, 0.08);
}
.about-cert-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 62px;
  height: 62px;
  background: var(--gold);
  color: var(--deep-green);
  font-family: var(--data-font);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.about-cert-card h3 {
  margin: 2px 0 8px;
  font-family: var(--heading-font);
  font-size: 20px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.about-cert-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.76);
}
.about-cert-note {
  margin: 24px 0 0;
  padding: 14px 16px;
  background: rgba(139, 46, 46, 0.16);
  border-left: 3px solid var(--dark-red);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.86);
}

/* ---------- 05 团队与组织 ---------- */
.about-team {
  background: linear-gradient(180deg, #F1EBDF 0%, var(--cream) 100%);
  color: var(--ink-black);
}
.about-team .about-section-head h2 {
  color: var(--ink-black);
}
.about-team .about-section-label {
  color: var(--moss-green);
}
.about-team-grid {
  display: grid;
  gap: 32px;
}
.about-team-copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock-gray);
}
.about-team-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}
.about-team-list li {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(11, 61, 46, 0.12);
}
.about-team-list li:first-child {
  border-top: 1px solid rgba(11, 61, 46, 0.12);
}
.about-team-list strong {
  font-family: var(--data-font);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--deep-green);
}
.about-team-list span {
  font-size: 13px;
  color: var(--rock-gray);
}
.about-team-figure {
  margin: 0;
}
.about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid rgba(11, 61, 46, 0.12);
  box-shadow: 0 14px 40px rgba(11, 61, 46, 0.12);
}
.about-team-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--rock-gray);
  letter-spacing: 0.04em;
}

/* ---------- 06 合作生态 ---------- */
.about-eco {
  background:
    radial-gradient(circle at 92% 12%, rgba(212, 168, 66, 0.12) 0%, transparent 30%),
    linear-gradient(165deg, var(--deep-green) 0%, var(--deep-green) 65%, #082B21 100%);
  color: var(--cream);
}
.about-eco-grid {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}
.about-eco-card {
  position: relative;
  overflow: hidden;
  background: rgba(245, 240, 230, 0.05);
  border: 1px solid rgba(212, 168, 66, 0.24);
  padding: 24px 22px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.about-eco-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 168, 66, 0.65);
}
.about-eco-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, transparent 50%, rgba(212, 168, 66, 0.20) 50%);
  pointer-events: none;
}
.about-eco-number {
  display: block;
  font-family: var(--data-font);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}
.about-eco-card h3 {
  margin: 10px 0 10px;
  font-family: var(--heading-font);
  font-size: 22px;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.about-eco-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.78);
}
.about-eco-cta {
  display: grid;
  gap: 16px;
  margin-top: 32px;
  padding: 24px;
  background: rgba(245, 240, 230, 0.06);
  border: 1px solid rgba(212, 168, 66, 0.26);
}
.about-eco-cta p {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 24px;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.about-eco-cta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 收尾行动区 ---------- */
.about-closing {
  background: var(--cream);
  color: var(--ink-black);
  padding-top: 48px;
  padding-bottom: 56px;
}
.about-closing-grid {
  display: grid;
  gap: 24px;
  align-items: center;
}
.about-closing h2 {
  margin: 0 0 8px;
  font-family: var(--heading-font);
  font-size: 28px;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-black);
}
.about-closing-grid > div:first-child p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock-gray);
}
.about-closing-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.about-closing-links a {
  display: inline-block;
  padding: 9px 16px;
  border: 1px solid rgba(11, 61, 46, 0.24);
  color: var(--deep-green);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}
.about-closing-links a:hover {
  background: var(--deep-green);
  color: var(--cream);
  border-color: var(--deep-green);
}

/* ---------- 响应式布局 ---------- */
@media (min-width: 640px) {
  .about-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .about-stats-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .about-cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-eco-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .about-timeline::before {
    left: 11px;
  }
  .about-timeline-item {
    padding-left: 44px;
  }
  .about-timeline-dot {
    left: 5px;
    top: 30px;
  }
  .about-timeline-body {
    padding: 24px 24px 20px;
  }
  .about-timeline-item:nth-child(2n) .about-timeline-body {
    transform: translateX(18px) rotate(0.3deg);
  }
  .about-timeline-item:nth-child(2n+1) .about-timeline-body {
    transform: translateX(-6px) rotate(-0.2deg);
  }
  .about-team-list li {
    grid-template-columns: 150px 1fr;
    gap: 18px;
  }
  .about-closing-grid {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 900px) {
  .about-panel {
    padding: 72px 0 88px;
  }
  .about-who-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 44px;
    align-items: start;
  }
  .about-tech-layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 44px;
    align-items: center;
  }
  .about-team-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .about-hero {
    padding-top: calc(var(--header-height) + 64px);
    padding-bottom: 56px;
  }
  .about-hero-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
    align-items: center;
  }
  .about-hero h1 {
    font-size: clamp(40px, 4.6vw, 68px);
  }
}