/* ===== 品牌档案页 · page-about ===== */
.page-about {
  background-color: var(--color-night);
  color: var(--color-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 页面横幅 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 2.5rem 0 2rem;
  background:
    radial-gradient(ellipse at 85% 15%, rgba(0, 255, 136, 0.08), transparent 55%),
    radial-gradient(ellipse at 15% 85%, rgba(0, 198, 255, 0.06), transparent 50%),
    linear-gradient(135deg, var(--color-midnight) 0%, var(--color-night) 75%);
  border-bottom: 1px solid rgba(0, 255, 136, 0.15);
  overflow: hidden;
}

.page-about .hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  padding-top: 2rem;
}

.page-about .hero-copy {
  max-width: 640px;
}

.page-about .display-kicker {
  letter-spacing: 0.1em;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.page-about .hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.12;
  color: var(--color-white);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}

.page-about .hero-lead {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--color-green);
  margin: 0 0 1rem;
}

.page-about .hero-text {
  color: var(--color-muted);
  line-height: 1.8;
  max-width: 560px;
  margin: 0;
}

.page-about .hero-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  background: rgba(10, 15, 30, 0.75);
  border: 1px solid rgba(0, 255, 136, 0.25);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1rem;
}

.page-about .hero-board::before {
  content: "LIVE DATA / 实时数据";
  font-family: var(--font-data);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-electric);
  position: absolute;
  top: -0.55rem;
  left: 1rem;
  background: var(--color-night);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(0, 198, 255, 0.3);
}

.page-about .hero-board::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green), var(--color-electric), var(--color-green));
  opacity: 0.7;
}

.page-about .hero-board__item {
  text-align: center;
  padding: 0.5rem 0.25rem;
}

.page-about .hero-board__num {
  display: block;
  font-size: clamp(1.1rem, 2.5vw, 2rem);
  color: var(--color-green);
  line-height: 1.2;
  word-break: break-word;
}

.page-about .hero-board__label {
  display: block;
  font-size: 0.72rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-top: 0.3rem;
}

/* ---------- 主体双栏布局 ---------- */
.page-about .archive-grid {
  display: grid;
  gap: 2rem;
  padding-top: 2.5rem;
  padding-bottom: 4rem;
}

.page-about .archive-sidebar {
  min-width: 0;
}

.page-about .archive-main {
  min-width: 0;
}

/* ---------- 侧边品牌信息卡 ---------- */
.page-about .sidebar-card {
  background: linear-gradient(160deg, rgba(26, 26, 46, 0.95), rgba(10, 15, 30, 0.9));
  border: 1px solid rgba(0, 255, 136, 0.18);
  border-top: 3px solid var(--color-gold);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  position: relative;
  overflow: hidden;
}

.page-about .sidebar-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background: linear-gradient(225deg, rgba(0, 255, 136, 0.12), transparent 60%);
  border-radius: 0 0 0 100%;
}

.page-about .sidebar-emblem-wrap {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-gold), #8a6d2f);
  border-radius: 18px;
  margin-bottom: 1rem;
}

.page-about .sidebar-emblem-wrap .brand__emblem {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--color-night);
  font-size: 1.75rem;
  line-height: 1;
}

.page-about .sidebar-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-white);
  margin: 0 0 0.25rem;
}

.page-about .sidebar-tagline {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin: 0 0 1.25rem;
}

.page-about .sidebar-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-green);
  margin-bottom: 1.25rem;
}

.page-about .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  animation: pageAboutPulse 2s infinite;
}

@keyframes pageAboutPulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(0, 255, 136, 0.5);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(0, 255, 136, 0);
  }
}

.page-about .sidebar-facts {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.page-about .sidebar-facts li {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--color-text);
}

.page-about .sidebar-facts li strong {
  color: var(--color-green);
  font-family: var(--font-data);
  font-weight: 700;
}

.page-about .sidebar-nav {
  display: grid;
  margin: 0 0 1.5rem;
}

.page-about .sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition-fast), padding-left var(--transition-fast), border-color var(--transition-fast);
}

.page-about .sidebar-nav a:hover {
  color: var(--color-green);
  border-bottom-color: rgba(0, 255, 136, 0.3);
  padding-left: 0.4rem;
}

.page-about .sidebar-nav .nav-num {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-gold);
  min-width: 28px;
}

.page-about .sidebar-contact {
  background: rgba(0, 198, 255, 0.05);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 198, 255, 0.15);
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
  line-height: 1.6;
}

.page-about .sidebar-contact p {
  margin: 0;
}

.page-about .sidebar-contact p:first-child {
  color: var(--color-muted);
  font-family: var(--font-data);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.page-about .sidebar-contact p:nth-child(2) {
  color: var(--color-white);
  font-family: var(--font-data);
  font-size: 0.9rem;
  word-break: break-all;
}

.page-about .sidebar-card .btn {
  display: block;
  width: 100%;
  text-align: center;
}

/* ---------- 章节通用 ---------- */
.page-about .story-section,
.page-about .milestone-section,
.page-about .team-section,
.page-about .partner-section,
.page-about .award-section {
  margin-bottom: 3.5rem;
}

.page-about .section-head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  margin-bottom: 0.5rem;
}

.page-about .section-head__index {
  font-family: var(--font-data);
  color: var(--color-gold);
  font-size: 0.9rem;
  line-height: 1;
}

.page-about .section-head__title {
  position: relative;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  color: var(--color-white);
  letter-spacing: -0.01em;
  padding-bottom: 0.5rem;
  margin: 0;
}

.page-about .section-head__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 72px;
  height: 3px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
}

.page-about .section-intro {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin: 0 0 1.75rem;
}

/* ---------- 01 品牌故事 ---------- */
.page-about .story-body {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.page-about .story-copy p {
  line-height: 1.9;
  margin: 0 0 1rem;
  color: var(--color-text);
}

.page-about .story-copy p:last-child {
  margin-bottom: 0;
}

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

.page-about .story-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 255, 136, 0.15);
  display: block;
  object-fit: cover;
}

.page-about .story-figure figcaption,
.page-about .team-figure figcaption,
.page-about .partner-figure figcaption {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-muted);
  text-align: center;
  margin-top: 0.5rem;
  letter-spacing: 0.04em;
}

/* ---------- 02 发展历程 ---------- */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0.5rem;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-green), var(--color-electric), rgba(0, 198, 255, 0.05));
  border-radius: 99px;
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 2rem 2.25rem;
}

.page-about .timeline__item:last-child {
  padding-bottom: 0.5rem;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.25rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-midnight);
  border: 3px solid var(--color-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.08);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.page-about .timeline__item:hover::before {
  box-shadow: 0 0 0 8px rgba(0, 255, 136, 0.18);
  transform: scale(1.1);
}

.page-about .timeline__time {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--color-gold);
  letter-spacing: 0.08em;
  background: rgba(201, 180, 88, 0.08);
  border-radius: var(--radius-full);
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.35rem;
}

.page-about .timeline__item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--color-white);
  margin: 0 0 0.3rem;
}

.page-about .timeline__item p {
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.7;
  margin: 0;
}

/* ---------- 03 团队组织 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-about .team-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.page-about .team-stat {
  background: linear-gradient(150deg, var(--color-midnight), rgba(10, 15, 30, 0.7));
  border-left: 3px solid var(--color-green);
  border-radius: var(--radius-md);
  padding: 1rem 0.85rem;
}

.page-about .team-stat__num {
  display: block;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--color-green);
  line-height: 1.1;
  margin-bottom: 0.3rem;
}

.page-about .team-stat__label {
  font-size: 0.78rem;
  color: var(--color-muted);
  line-height: 1.4;
}

.page-about .team-copy p {
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--color-text);
  margin: 0 0 1rem;
}

.page-about .team-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 1rem 0 0;
}

.page-about .team-tags .tag {
  background: rgba(0, 255, 136, 0.08);
  color: var(--color-green);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.8rem;
  font-size: 0.78rem;
}

.page-about .team-figure {
  margin: 1.75rem 0 0;
}

.page-about .team-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 198, 255, 0.15);
  display: block;
  object-fit: cover;
}

/* ---------- 04 合作生态 ---------- */
.page-about .partner-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .partner-figure {
  margin: 0;
  order: -1;
}

.page-about .partner-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 198, 255, 0.15);
  display: block;
  object-fit: cover;
}

.page-about .partner-list {
  display: grid;
  gap: 0.85rem;
}

.page-about .partner-card {
  position: relative;
  background: var(--color-midnight);
  border-radius: var(--radius-md);
  padding: 1.15rem 2.5rem 1.15rem 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: border-color var(--transition-base), transform var(--transition-base), background var(--transition-base);
}

.page-about .partner-card::after {
  content: "";
  position: absolute;
  right: 1.1rem;
  top: 1.15rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
  animation: pageAboutPulse 2s infinite;
}

.page-about .partner-card:hover {
  border-color: rgba(0, 255, 136, 0.4);
  background: rgba(0, 255, 136, 0.04);
  transform: translateY(-3px);
}

.page-about .partner-card__type {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.35rem;
}

.page-about .partner-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
  margin: 0 0 0.3rem;
}

.page-about .partner-card p {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin: 0;
}

/* ---------- 05 行业认可 ---------- */
.page-about .award-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0 0 2rem;
}

.page-about .award-seal {
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-about .award-seal__ring {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px dashed rgba(201, 180, 88, 0.6);
  background: radial-gradient(circle at 30% 20%, rgba(201, 180, 88, 0.1), rgba(26, 26, 46, 0.8));
  text-align: center;
  padding: 0.5rem;
  transition: border-style var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.page-about .award-seal__ring:hover {
  border-style: solid;
  transform: rotate(-4deg) scale(1.02);
  box-shadow: 0 0 24px rgba(201, 180, 88, 0.15);
}

.page-about .award-seal__num {
  font-family: var(--font-data);
  font-size: clamp(1.05rem, 2vw, 1.7rem);
  color: var(--color-gold);
  line-height: 1.15;
  font-weight: 700;
  display: block;
}

.page-about .award-seal__label {
  font-size: 0.72rem;
  color: var(--color-muted);
  line-height: 1.5;
  margin-top: 0.4rem;
  display: block;
}

.page-about .award-note {
  background: linear-gradient(145deg, rgba(26, 26, 46, 0.8), rgba(10, 15, 30, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.page-about .award-note p {
  font-size: 0.94rem;
  line-height: 1.85;
  margin: 0 0 0.85rem;
  color: var(--color-text);
}

.page-about .award-note a {
  color: var(--color-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 255, 136, 0.3);
  transition: border-color var(--transition-fast);
}

.page-about .award-note a:hover {
  border-bottom-color: var(--color-green);
}

.page-about .award-note .btn {
  margin-top: 0.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-about .hero-board {
    padding: 1.75rem;
    gap: 0.75rem;
  }

  .page-about .section-intro {
    padding-left: 2.4rem;
  }

  .page-about .team-stats {
    gap: 1rem;
  }

  .page-about .award-grid {
    gap: 1.5rem;
  }
}

@media (min-width: 992px) {
  .page-about .about-hero {
    padding: 3.5rem 0 2.5rem;
  }

  .page-about .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    padding-top: 2.5rem;
  }

  .page-about .archive-grid {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 3rem;
    padding-top: 3.5rem;
    align-items: start;
  }

  .page-about .archive-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .story-body {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-about .team-grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 2.5rem;
  }

  .page-about .partner-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .page-about .partner-figure {
    order: 0;
  }

  .page-about .award-note {
    padding: 2.25rem;
  }
}

@media (min-width: 1200px) {
  .page-about .hero-title {
    font-size: 3.75rem;
  }

  .page-about .story-section,
  .page-about .milestone-section,
  .page-about .team-section,
  .page-about .partner-section,
  .page-about .award-section {
    margin-bottom: 4.5rem;
  }
}