.page-about {
  --about-gold: #D4AF37;
  --about-gold-bright: #F0D060;
  --about-orange: #FF6B35;
  --about-deep-blue: #0A1A2F;
  --about-deep-light: #10263F;
  --about-neon: #00F0FF;
  --about-green: #39FF14;
  --about-purple: #9D4EDD;
  --about-light-bg: #F5F7FA;
  --about-text: #1A1A1A;
  --about-text-light: #E8ECF1;
  --about-text-muted: #6B7280;
  --about-glass: rgba(10, 26, 47, 0.72);
  --about-font-heading: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --about-font-mono: "JetBrains Mono", "Roboto Mono", monospace;
  --about-container: 1200px;
  --about-radius: 16px;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--about-light-bg);
  color: var(--about-text);
  overflow-x: hidden;
}
.page-about .container-wide {
  width: 100%;
  max-width: var(--about-container);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  box-sizing: border-box;
}
.page-about .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--about-font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.7rem 1.3rem;
  border-radius: 6px;
  border: 1px solid currentColor;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}
.page-about .btn-ghost {
  background: transparent;
  color: var(--about-text);
}
.page-about .btn-ghost:hover {
  background: var(--about-gold);
  color: var(--about-deep-blue);
  border-color: var(--about-gold);
  transform: translateY(-4px);
}
.page-about .section-label {
  font-family: var(--about-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--about-gold);
  margin-bottom: 0.6rem;
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 4px;
  background: rgba(212, 175, 55, 0.06);
}
.page-about .about-section {
  padding: 70px 0 80px;
  position: relative;
}
.page-about .about-section-light {
  background: var(--about-light-bg);
  color: var(--about-text);
}
.page-about .about-section-dark {
  background: var(--about-deep-blue);
  color: var(--about-text-light);
}
.page-about .about-section-dark .btn-ghost {
  color: var(--about-text-light);
  border-color: rgba(232, 236, 241, 0.4);
}
.page-about .about-section-dark .btn-ghost:hover {
  border-color: var(--about-gold);
  color: var(--about-deep-blue);
  background: var(--about-gold);
}
.page-about .about-section-accent {
  background: var(--about-deep-light);
  color: var(--about-text-light);
  overflow: hidden;
}
.page-about .about-section-accent::before {
  content: "";
  position: absolute;
  top: 0;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.18) 0%, transparent 70%);
  z-index: 0;
}
.page-about .about-section-accent::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.22) 0%, transparent 70%);
  z-index: 0;
}
.page-about .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  position: relative;
  z-index: 1;
}
.page-about .about-grid-index {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 2px solid rgba(212, 175, 55, 0.4);
  padding-bottom: 10px;
}
.page-about .about-index-num {
  font-family: var(--about-font-mono);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--about-gold);
}
.page-about .about-index-name {
  font-family: var(--about-font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--about-text-muted);
  text-transform: uppercase;
}
.page-about .about-section-dark .about-index-name,
.page-about .about-section-accent .about-index-name {
  color: rgba(232, 236, 241, 0.5);
}
.page-about .about-section-title {
  font-family: var(--about-font-heading);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.12;
  margin: 0.3rem 0 1.2rem;
  letter-spacing: -0.01em;
}
.page-about .about-section-title-light {
  color: #FFFFFF;
}
.page-about .about-lead-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--about-text-muted);
  margin-bottom: 2rem;
}
.page-about .about-lead-text-light {
  color: rgba(232, 236, 241, 0.8);
}

/* 面包屑按钮行 */
.page-about .about-breadcrumb-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 2.2rem;
}

/* 首屏 Hero */
.page-about .about-hero {
  background: var(--about-deep-blue);
  color: var(--about-text-light);
  padding: 120px 0 140px;
  position: relative;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 0%, transparent 78%, rgba(212, 175, 55, 0.2) 78%, rgba(212, 175, 55, 0.2) 100%);
  z-index: 1;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0px,
    transparent 36px,
    rgba(0, 240, 255, 0.06) 36px,
    rgba(0, 240, 255, 0.06) 37px
  );
  z-index: 1;
}
.page-about .about-hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 10px;
}
.page-about .about-hero-sup {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.2rem;
}
.page-about .about-hero-sup-num {
  font-family: var(--about-font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--about-gold);
}
.page-about .about-hero-sup-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--about-gold), transparent);
}
.page-about .about-hero-sup-text {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: rgba(232, 236, 241, 0.6);
  text-transform: uppercase;
}
.page-about .about-hero-title {
  font-family: var(--about-font-heading);
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 900;
  line-height: 1.08;
  margin: 0 0 1.4rem;
  color: #FFFFFF;
}
.page-about .about-hero-title::after {
  content: "";
  display: block;
  width: 74px;
  height: 5px;
  background: linear-gradient(90deg, var(--about-gold), var(--about-orange));
  margin-top: 1.2rem;
  border-radius: 3px;
}
.page-about .about-hero-desc {
  font-size: 1.02rem;
  line-height: 1.9;
  color: rgba(232, 236, 241, 0.78);
  max-width: 520px;
  margin-bottom: 2.2rem;
}
.page-about .about-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
}
.page-about .about-hero-meta-item {
  display: flex;
  flex-direction: column;
}
.page-about .about-hero-meta-num {
  font-family: var(--about-font-heading);
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--about-gold-bright);
  letter-spacing: -0.01em;
}
.page-about .about-hero-meta-label {
  font-size: 0.78rem;
  color: rgba(232, 236, 241, 0.55);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.page-about .about-hero-visual {
  position: relative;
}
.page-about .about-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(212, 175, 55, 0.28);
}
.page-about .about-hero-float-card {
  position: absolute;
  bottom: 22px;
  left: 22px;
  right: 22px;
  background: var(--about-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--about-glass-border, rgba(212, 175, 55, 0.24));
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--about-text-light);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.page-about .about-hero-float-label {
  display: inline-block;
  font-family: var(--about-font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--about-green);
  margin-bottom: 8px;
  border: 1px solid rgba(57, 255, 20, 0.4);
  padding: 2px 8px;
  border-radius: 20px;
}
.page-about .about-hero-float-line {
  font-size: 0.8rem;
  color: rgba(232, 236, 241, 0.88);
  padding: 4px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.page-about .about-hero-float-line:last-child {
  border-bottom: none;
}
.page-about .about-hero-float-line .mono-num {
  font-family: var(--about-font-mono);
  color: var(--about-gold-bright);
  font-weight: 700;
}
.page-about .about-hero-slice {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: linear-gradient(135deg, var(--about-light-bg) 0%, var(--about-light-bg) 50%, transparent 50%, transparent 100%);
  z-index: 2;
}

/* 章节锚点导航 */
.page-about .about-anchor {
  background: #FFFFFF;
  border-bottom: 1px solid rgba(10, 26, 47, 0.08);
  padding: 14px 0;
  position: sticky;
  top: 62px;
  z-index: 30;
  box-shadow: 0 4px 18px rgba(10, 26, 47, 0.06);
}
.page-about .about-anchor-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
}
.page-about .about-anchor-label {
  font-family: var(--about-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--about-gold);
  text-transform: uppercase;
  white-space: nowrap;
}
.page-about .about-anchor-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--about-text);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s ease, color 0.3s ease;
  white-space: nowrap;
}
.page-about .about-anchor-link:hover {
  color: var(--about-gold);
  border-bottom-color: var(--about-gold);
}

/* 品牌起源 */
.page-about .about-copy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-about .about-copy-grid p {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--about-text);
  margin: 0 0 1rem;
}
.page-about .about-quote-card {
  background: var(--about-deep-blue);
  border-radius: 14px;
  padding: 22px 24px;
  margin-top: 14px;
  position: relative;
  overflow: hidden;
  border-left: 4px solid var(--about-gold);
}
.page-about .about-quote-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, transparent 50%, rgba(212, 175, 55, 0.25) 50%);
}
.page-about .about-quote-mark {
  font-family: Georgia, serif;
  font-size: 3rem;
  line-height: 1;
  color: var(--about-gold);
  display: block;
  margin-bottom: -8px;
}
.page-about .about-quote-card p {
  color: var(--about-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin: 0;
}

/* 数据能力 */
.page-about .about-data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 28px;
}
.page-about .about-data-card {
  background: var(--about-deep-light);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--about-radius);
  padding: 22px;
  position: relative;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.page-about .about-data-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--about-shadow-float, 0 12px 40px rgba(0, 0, 0, 0.4));
  border-color: rgba(212, 175, 55, 0.3);
}
.page-about .about-data-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.page-about .about-data-card-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(232, 236, 241, 0.7);
}
.page-about .about-data-card-tag {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.08em;
}
.page-about .tag-purple {
  background: rgba(157, 78, 221, 0.2);
  color: #B47BF0;
  border: 1px solid rgba(157, 78, 221, 0.4);
}
.page-about .tag-green {
  background: rgba(57, 255, 20, 0.14);
  color: var(--about-green);
  border: 1px solid rgba(57, 255, 20, 0.35);
}
.page-about .tag-orange {
  background: rgba(255, 107, 53, 0.18);
  color: var(--about-orange);
  border: 1px solid rgba(255, 107, 53, 0.35);
}
.page-about .tag-blue {
  background: rgba(0, 240, 255, 0.1);
  color: var(--about-neon);
  border: 1px solid rgba(0, 240, 255, 0.3);
}
.page-about .about-data-card-num {
  font-family: var(--about-font-heading);
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--about-gold-bright);
  margin-bottom: 8px;
}
.page-about .about-data-card-unit {
  font-size: 1.2rem;
  font-weight: 800;
  margin-left: 3px;
}
.page-about .about-data-card-name {
  font-family: var(--about-font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 8px;
}
.page-about .about-data-card-text {
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(232, 236, 241, 0.65);
}
.page-about .about-data-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  margin-bottom: 20px;
}
.page-about .about-data-foot-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: rgba(232, 236, 241, 0.8);
}
.page-about .dot-green {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--about-green);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.7);
  animation: about-pulse 2s infinite ease-in-out;
}
@keyframes about-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.8); }
}

/* 时间轴 */
.page-about .about-timeline-wrap {
  margin-top: 10px;
}
.page-about .about-timeline-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--about-radius);
  object-fit: cover;
  margin-bottom: 28px;
  box-shadow: 0 10px 40px rgba(10, 26, 47, 0.14);
}
.page-about .about-timeline {
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--about-gold);
  margin-left: 8px;
}
.page-about .about-timeline-item {
  position: relative;
  padding: 16px 20px;
  margin-bottom: 16px;
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 4px 18px rgba(10, 26, 47, 0.07);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.page-about .about-timeline-item:hover {
  transform: translateX(6px);
  box-shadow: 0 10px 30px rgba(10, 26, 47, 0.13);
}
.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-deep-blue);
  border: 3px solid var(--about-gold);
  box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.2);
}
.page-about .about-timeline-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}
.page-about .about-timeline-year {
  font-family: var(--about-font-mono);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--about-gold);
  background: rgba(212, 175, 55, 0.1);
  padding: 2px 12px;
  border-radius: 6px;
}
.page-about .about-timeline-title {
  font-family: var(--about-font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--about-text);
}
.page-about .about-timeline-text {
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--about-text-muted);
  margin: 0;
}

/* 服务理念 */
.page-about .about-philosophy-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 30px;
}
.page-about .about-philosophy-item {
  display: flex;
  gap: 18px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--about-radius);
  transition: background 0.3s ease, transform 0.3s ease;
}
.page-about .about-philosophy-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}
.page-about .about-philosophy-num {
  font-family: var(--about-font-mono);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--about-gold);
  line-height: 1.4;
}
.page-about .about-philosophy-name {
  font-family: var(--about-font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: #FFFFFF;
  margin: 0 0 6px;
}
.page-about .about-philosophy-text {
  font-size: 0.85rem;
  line-height: 1.75;
  color: rgba(232, 236, 241, 0.72);
  margin: 0;
}
.page-about .about-philosophy-pulse {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.2);
  border-radius: 30px;
  padding: 10px 18px;
  font-size: 0.8rem;
  color: rgba(232, 236, 241, 0.85);
  font-family: var(--about-font-mono);
}
.page-about .about-philosophy-pulse .live-dot {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--about-green);
  animation: about-pulse 1.6s infinite;
}
.page-about .about-philosophy-pulse .live-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: rgba(57, 255, 20, 0.25);
  animation: about-ring 1.8s infinite ease-out;
}
@keyframes about-ring {
  0% { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* 合作生态 */
.page-about .about-eco-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}
.page-about .about-eco-content > p {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--about-text);
  margin-bottom: 1rem;
}
.page-about .about-eco-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
  display: grid;
  gap: 10px;
}
.page-about .about-eco-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #FFFFFF;
  border: 1px solid rgba(10, 26, 47, 0.08);
  border-left: 3px solid var(--about-gold);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--about-text);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.page-about .about-eco-list li:hover {
  transform: translateX(4px);
  box-shadow: 0 6px 16px rgba(10, 26, 47, 0.08);
}
.page-about .about-eco-list .mono-num {
  font-family: var(--about-font-mono);
  font-weight: 800;
  color: var(--about-deep-blue);
  background: rgba(212, 175, 55, 0.12);
  padding: 3px 8px;
  border-radius: 4px;
  min-width: 56px;
  text-align: center;
}
.page-about .about-eco-note {
  font-size: 0.86rem;
  color: var(--about-text-muted);
  line-height: 1.75;
  border-left: 3px solid var(--about-neon);
  padding-left: 14px;
}
.page-about .about-eco-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--about-radius);
  object-fit: cover;
  box-shadow: 0 12px 40px rgba(10, 26, 47, 0.16);
  border: 1px solid rgba(10, 26, 47, 0.08);
}

/* 加入我们 */
.page-about .about-join-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 22px;
}
.page-about .about-join-card {
  background: var(--about-deep-light);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--about-radius);
  padding: 26px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}
.page-about .about-join-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--about-gold), var(--about-orange));
  opacity: 0.85;
}
.page-about .about-join-card:hover {
  transform: translateY(-6px);
  border-color: rgba(212, 175, 55, 0.4);
}
.page-about .about-join-card-title {
  font-family: var(--about-font-heading);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--about-gold-bright);
  margin: 0 0 12px;
}
.page-about .about-join-card-text {
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(232, 236, 241, 0.75);
  margin: 0 0 16px;
}
.page-about .about-join-card-tag {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--about-neon);
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}
.page-about .about-join-foot {
  font-size: 0.85rem;
  color: rgba(232, 236, 241, 0.7);
  line-height: 1.8;
  margin-bottom: 0;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
}
.page-about .about-join-mail {
  color: var(--about-gold);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 1px solid rgba(212, 175, 55, 0.4);
  transition: border-color 0.3s ease, color 0.3s ease;
}
.page-about .about-join-mail:hover {
  color: var(--about-gold-bright);
  border-bottom-color: var(--about-gold-bright);
}
.page-about .about-section-dark .about-breadcrumb-row .btn-ghost {
  color: var(--about-text-light);
  border-color: rgba(232, 236, 241, 0.35);
}
.page-about .about-section-dark .about-breadcrumb-row .btn-ghost:hover {
  background: var(--about-gold);
  color: var(--about-deep-blue);
  border-color: var(--about-gold);
}

/* 滚动显现 */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.page-about [data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}
.page-about .mono-num {
  font-family: var(--about-font-mono);
  font-variant-numeric: tabular-nums;
}
.page-about .dot {
  display: inline-block;
  flex-shrink: 0;
}

/* 桌面端 */
@media (min-width: 768px) {
  .page-about .about-grid {
    grid-template-columns: 140px 1fr;
    gap: 40px;
  }
  .page-about .about-grid-index {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    border-bottom: none;
    border-right: 2px solid rgba(212, 175, 55, 0.25);
    padding: 0 20px 0 0;
    margin-top: 0.3rem;
  }
  .page-about .about-copy-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .page-about .about-data-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .page-about .about-philosophy-list {
    grid-template-columns: 1fr;
  }
  .page-about .about-join-cards {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-eco-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 150px 0 180px;
  }
  .page-about .about-hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
  }
  .page-about .about-hero-float-card {
    right: auto;
    width: 320px;
  }
  .page-about .about-timeline {
    padding-left: 32px;
  }
  .page-about .about-timeline-item {
    padding: 18px 24px;
    margin-bottom: 14px;
  }
  .page-about .about-timeline-item::before {
    left: -39px;
  }
  .page-about .about-philosophy-list {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-section {
    padding: 90px 0 100px;
  }
}

.page-about {
  --about-glass-border: var(--glass-border);
  --about-shadow-float: var(--shadow-float);
}