.page-about {
  --about-container-w: 1200px;
  --about-gutter: clamp(20px, 4vw, 40px);
  --about-deep: #1B1B1F;
  --about-highlight: #E6392D;
  --about-gold: #D4A017;
  --about-white: #F5F5F0;
  --about-text: #2A2A30;
  --about-muted: #6B7A8F;
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--about-white);
  color: var(--about-text);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about .container {
  width: min(var(--about-container-w), 100% - var(--about-gutter) * 2);
  margin-inline: auto;
}

.page-about .section {
  padding-block: clamp(56px, 8vw, 96px);
}

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

.page-about .about-section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--about-highlight);
  margin-bottom: 12px;
}

.page-about .about-section-tag::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 3px;
  background: var(--about-highlight);
}

.page-about .about-section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.16;
  color: var(--about-deep);
  margin: 0 0 18px;
  letter-spacing: 0.01em;
}

.page-about .about-section-lead {
  font-size: 1rem;
  color: var(--about-muted);
  margin: 0;
  max-width: 56ch;
}

.page-about .about-section-head {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(32px, 5vw, 52px);
}

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

.page-about .about-section-head-light .about-section-lead {
  color: rgba(245, 245, 240, 0.72);
}

.page-about .about-lead {
  font-size: 1.05rem;
  color: var(--about-text);
  line-height: 1.9;
  max-width: 62ch;
  margin: 0;
}

.page-about .about-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--about-highlight);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.3s var(--about-ease), color 0.3s var(--about-ease);
}

.page-about .about-link-arrow::after {
  content: "→";
  font-size: 1.15em;
  transition: transform 0.3s var(--about-ease);
}

.page-about .about-link-arrow:hover {
  border-bottom-color: var(--about-highlight);
}

.page-about .about-link-arrow:hover::after {
  transform: translateX(4px);
}

/* ===== 英雄横幅 ===== */
.page-about .about-hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: flex-end;
  background: var(--about-deep);
  color: var(--about-white);
  padding-bottom: 56px;
  overflow: hidden;
}

.page-about .about-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.48;
  filter: saturate(1.1) contrast(1.05);
}

.page-about .about-hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 14px;
}

.page-about .about-hero .breadcrumb {
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.85rem;
  color: rgba(245, 245, 240, 0.7);
}

.page-about .about-hero .breadcrumb-link {
  color: rgba(245, 245, 240, 0.7);
  text-decoration: none;
  transition: color 0.3s var(--about-ease);
}

.page-about .about-hero .breadcrumb-link:hover {
  color: var(--about-white);
}

.page-about .about-hero .breadcrumb-item {
  color: var(--about-white);
  font-weight: 600;
}

.page-about .about-hero .breadcrumb-sep {
  opacity: 0.5;
}

.page-about .about-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245, 245, 240, 0.75);
  margin-top: 6px;
}

.page-about .about-hero-kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--about-highlight);
  box-shadow: 0 0 0 4px rgba(230, 57, 45, 0.25);
}

.page-about .about-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 7vw, 4.6rem);
  line-height: 1;
  margin: 0;
  color: var(--about-white);
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.page-about .about-hero-title-mark {
  color: var(--about-highlight);
}

.page-about .about-hero-subtitle {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  letter-spacing: 0.08em;
  color: var(--about-gold);
  margin: 0;
  text-transform: uppercase;
}

.page-about .about-hero-desc {
  max-width: 62ch;
  margin: 0;
  color: rgba(245, 245, 240, 0.82);
  font-size: 1rem;
  line-height: 1.85;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

.page-about .about-hero-actions .btn {
  padding: 12px 24px;
  font-weight: 700;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.92rem;
  transition: transform 0.3s var(--about-ease), box-shadow 0.3s var(--about-ease), background 0.3s var(--about-ease);
}

.page-about .about-hero-actions .btn-primary {
  background: var(--about-highlight);
  color: #fff;
  border: 2px solid var(--about-highlight);
}

.page-about .about-hero-actions .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(230, 57, 45, 0.35);
}

.page-about .about-hero-actions .btn-outline {
  background: transparent;
  color: var(--about-white);
  border: 2px solid rgba(245, 245, 240, 0.5);
}

.page-about .about-hero-actions .btn-outline:hover {
  border-color: var(--about-white);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
}

.page-about .about-hero-note {
  font-size: 0.85rem;
  color: rgba(245, 245, 240, 0.55);
  border-left: 3px solid var(--about-gold);
  padding-left: 14px;
  max-width: 56ch;
  margin-top: 6px;
}

.page-about .about-hero-strip {
  position: absolute;
  right: -80px;
  top: 50%;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(245, 245, 240, 0.14);
  transform: rotate(45deg) translateY(-50%);
  z-index: 1;
  pointer-events: none;
}

.page-about .about-hero-strip::before,
.page-about .about-hero-strip::after {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(230, 57, 45, 0.4);
  transform: rotate(-12deg);
}

.page-about .about-hero-strip::after {
  inset: 48px;
  border-color: rgba(212, 160, 23, 0.3);
  transform: rotate(8deg);
}

/* ===== 平台定位 ===== */
.page-about .about-position {
  background: var(--about-white);
  position: relative;
}

.page-about .about-position::before {
  content: "01";
  position: absolute;
  top: 24px;
  right: clamp(12px, 4vw, 60px);
  font-family: var(--font-display);
  font-size: clamp(6rem, 18vw, 11rem);
  font-weight: 900;
  line-height: 1;
  color: rgba(27, 27, 31, 0.05);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.page-about .about-position-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 48px;
}

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

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

.page-about .about-price-note {
  background: var(--about-deep);
  color: var(--about-white);
  border-radius: var(--radius);
  padding: 24px 26px;
  position: relative;
  overflow: hidden;
}

.page-about .about-price-note::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 100px;
  height: 100px;
  background: var(--about-highlight);
  opacity: 0.75;
  transform: rotate(45deg);
}

.page-about .about-price-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--about-gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.page-about .about-price-strong {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--about-white);
  display: block;
  line-height: 1.2;
  margin-bottom: 8px;
}

.page-about .about-price-desc {
  margin: 0;
  font-size: 0.88rem;
  color: rgba(245, 245, 240, 0.7);
  line-height: 1.7;
}

.page-about .about-sub-grid {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.page-about .about-sub-card {
  background: var(--about-white);
  border: 1px solid rgba(27, 27, 31, 0.08);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(27, 27, 31, 0.04);
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--about-ease), box-shadow 0.35s var(--about-ease);
}

.page-about .about-sub-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--about-highlight);
  opacity: 0;
  transition: opacity 0.35s var(--about-ease);
}

.page-about .about-sub-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 40px rgba(27, 27, 31, 0.09);
}

.page-about .about-sub-card:hover::before {
  opacity: 1;
}

.page-about .about-sub-index {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--about-highlight);
  display: block;
  margin-bottom: 10px;
}

.page-about .about-sub-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--about-deep);
  margin: 0 0 8px;
}

.page-about .about-sub-text {
  font-size: 0.92rem;
  color: #4a4a52;
  line-height: 1.75;
  margin: 0;
}

/* ===== 发展里程碑 ===== */
.page-about .about-milestones {
  background: var(--about-deep);
  position: relative;
  overflow: hidden;
}

.page-about .about-milestones::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--about-highlight), var(--about-gold));
}

.page-about .about-milestones::after {
  content: "2016 — 2024";
  position: absolute;
  right: -20px;
  bottom: 60px;
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 900;
  color: rgba(255, 255, 255, 0.04);
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(230, 57, 45, 0.65), rgba(212, 160, 23, 0.45));
}

.page-about .about-timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  padding-bottom: 44px;
}

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

.page-about .about-timeline-marker {
  position: relative;
  z-index: 1;
}

.page-about .about-timeline-dot {
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--about-highlight);
  border: 4px solid var(--about-deep);
  box-shadow: 0 0 0 2px var(--about-highlight), 0 0 0 6px rgba(230, 57, 45, 0.16);
  margin-top: 8px;
}

.page-about .about-timeline-item:nth-child(even) .about-timeline-dot {
  background: var(--about-gold);
  border-color: var(--about-deep);
  box-shadow: 0 0 0 2px var(--about-gold), 0 0 0 6px rgba(212, 160, 23, 0.14);
}

.page-about .about-timeline-content {
  padding-right: 4px;
}

.page-about .about-timeline-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--about-white);
  margin: 0 0 8px;
  line-height: 1.35;
}

.page-about .about-timeline-text {
  font-size: 0.92rem;
  color: rgba(245, 245, 240, 0.66);
  line-height: 1.75;
  margin: 0;
  max-width: 56ch;
}

.page-about .about-timeline-year {
  grid-column: 2;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 10px;
}

.page-about .about-timeline-year span {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--about-white);
  line-height: 1;
}

.page-about .about-timeline-year small {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--about-gold);
  text-transform: uppercase;
}

.page-about .about-timeline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

/* ===== 资质与备案 ===== */
.page-about .about-license {
  background: linear-gradient(135deg, #F0EEE6 0%, var(--about-white) 100%);
}

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

.page-about .about-license-card {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(27, 27, 31, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius);
  padding: 26px 24px;
  display: grid;
  gap: 10px;
  transition: transform 0.35s var(--about-ease), box-shadow 0.35s var(--about-ease);
  position: relative;
}

.page-about .about-license-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(27, 27, 31, 0.08);
}

.page-about .about-license-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--about-highlight);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
}

.page-about .about-license-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--about-deep);
  margin: 0;
}

.page-about .about-license-text {
  font-size: 0.92rem;
  color: #4a4a52;
  line-height: 1.7;
  margin: 0;
}

.page-about .about-license-card-promise {
  background: linear-gradient(135deg, var(--about-deep) 0%, #26262c 100%);
  border-color: transparent;
}

.page-about .about-license-card-promise .about-license-title {
  color: var(--about-white);
}

.page-about .about-license-card-promise .about-license-text {
  color: rgba(245, 245, 240, 0.78);
}

.page-about .about-license-card-promise .about-license-icon {
  background: var(--about-gold);
  color: var(--about-deep);
}

/* ===== 合作与生态 ===== */
.page-about .about-ecosystem {
  background: #E8E6DE;
  position: relative;
}

.page-about .about-ecosystem-head {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(32px, 5vw, 52px);
}

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

.page-about .about-ecosystem-figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-ecosystem-img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
}

.page-about .about-ecosystem-caption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(27, 27, 31, 0.78);
  color: var(--about-white);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-about .about-ecosystem-aside {
  display: grid;
  gap: 16px;
}

.page-about .about-ecosystem-card {
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(27, 27, 31, 0.06);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 24px;
}

.page-about .about-ecosystem-card-title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--about-deep);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-about .about-ecosystem-card-title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--about-highlight);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.page-about .about-ecosystem-card-text {
  font-size: 0.92rem;
  color: #4a4a52;
  line-height: 1.75;
  margin: 0 0 12px;
}

.page-about .about-ecosystem-card-text:last-child {
  margin-bottom: 0;
}

.page-about .about-badge-matrix {
  background: var(--about-deep);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  margin-top: 40px;
  display: grid;
  gap: 24px;
  position: relative;
  overflow: hidden;
}

.page-about .about-badge-matrix::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border: 2px solid rgba(230, 57, 45, 0.4);
  transform: rotate(40deg);
  pointer-events: none;
}

.page-about .about-badge-matrix-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--about-white);
  margin: 0;
}

.page-about .about-badge-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-about .about-badge {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 18px 12px;
  display: grid;
  gap: 4px;
  text-align: center;
  transition: background 0.3s var(--about-ease), border-color 0.3s var(--about-ease), transform 0.3s var(--about-ease);
}

.page-about .about-badge:hover {
  background: rgba(230, 57, 45, 0.16);
  border-color: rgba(230, 57, 45, 0.55);
  transform: scale(1.03);
}

.page-about .about-badge-num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 900;
  color: var(--about-gold);
  line-height: 1;
}

.page-about .about-badge-label {
  font-size: 0.82rem;
  color: rgba(245, 245, 240, 0.72);
  font-weight: 600;
}

/* ===== 用户规模 ===== */
.page-about .about-stats {
  background: var(--about-white);
}

.page-about .about-stats-grid {
  display: grid;
  gap: 16px;
  margin-bottom: 28px;
}

.page-about .about-stat-card {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(27, 27, 31, 0.07);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  display: grid;
  gap: 6px;
  transition: transform 0.35s var(--about-ease), box-shadow 0.35s var(--about-ease);
}

.page-about .about-stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 44px rgba(27, 27, 31, 0.1);
}

.page-about .about-stat-card::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 0;
  width: 42px;
  height: 4px;
  background: var(--about-highlight);
  border-radius: 0 0 4px 4px;
}

.page-about .about-stat-card-primary {
  background: var(--about-deep);
  border-color: transparent;
}

.page-about .about-stat-card-primary::before {
  background: var(--about-gold);
}

.page-about .about-stat-card-primary .about-stat-card-label {
  color: rgba(245, 245, 240, 0.65);
}

.page-about .about-stat-card-primary .about-stat-card-num {
  color: var(--about-white);
}

.page-about .about-stat-card-primary .about-stat-card-desc {
  color: rgba(245, 245, 240, 0.55);
}

.page-about .about-stat-card-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--about-muted);
  text-transform: uppercase;
}

.page-about .about-stat-card-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 5.4vw, 3.6rem);
  line-height: 1;
  color: var(--about-deep);
  letter-spacing: -0.02em;
}

.page-about .about-stat-card-plus {
  color: var(--about-highlight);
  font-size: 0.58em;
  vertical-align: super;
}

.page-about .about-stat-card-desc {
  font-size: 0.86rem;
  color: var(--about-muted);
  margin: 0;
}

.page-about .about-stats-footer {
  font-size: 0.9rem;
  color: var(--about-muted);
  max-width: 72ch;
  border-left: 3px solid var(--about-gold);
  padding-left: 16px;
  margin: 0;
}

/* ===== 底部 CTA ===== */
.page-about .about-cta {
  background: var(--about-highlight);
  position: relative;
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  left: -40px;
  top: -100px;
  width: 300px;
  height: 300px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  transform: rotate(30deg);
  pointer-events: none;
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -160px;
  width: 380px;
  height: 380px;
  border: 2px solid rgba(27, 27, 31, 0.16);
  transform: rotate(-18deg);
  pointer-events: none;
}

.page-about .about-cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 24px;
  padding-block: clamp(48px, 7vw, 72px);
}

.page-about .about-cta-kicker {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
}

.page-about .about-cta-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  color: #fff;
  line-height: 1.15;
  margin: 0 0 12px;
}

.page-about .about-cta-text {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.98rem;
  margin: 0;
  max-width: 56ch;
  line-height: 1.8;
}

.page-about .about-cta-right {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.page-about .about-cta-right .btn {
  padding: 13px 26px;
  font-weight: 700;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.94rem;
  transition: transform 0.3s var(--about-ease), box-shadow 0.3s var(--about-ease), background 0.3s var(--about-ease);
}

.page-about .about-cta-right .btn-primary {
  background: var(--about-deep);
  color: #fff;
  border: 2px solid var(--about-deep);
}

.page-about .about-cta-right .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(27, 27, 31, 0.35);
}

.page-about .about-cta-right .btn-ghost {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.page-about .about-cta-right .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  transform: translateY(-3px);
}

/* ===== 移动端优先适配 ===== */
@media (min-width: 600px) {
  .page-about .about-position-grid {
    grid-template-columns: 1.6fr 1fr;
    align-items: start;
  }

  .page-about .about-license-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .about-timeline::before {
    left: 50%;
    margin-left: -1px;
  }

  .page-about .about-timeline-item {
    grid-template-columns: 1fr 52px 1fr;
    column-gap: 0;
  }

  .page-about .about-timeline-dot {
    margin-inline: auto;
  }

  .page-about .about-timeline-content {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
    padding-right: 28px;
  }

  .page-about .about-timeline-year {
    grid-column: 3;
    grid-row: 1;
    margin-top: 0;
    padding-left: 28px;
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .page-about .about-timeline-item:nth-child(even) .about-timeline-content {
    grid-column: 3;
    grid-row: 1;
    text-align: left;
    padding-left: 28px;
    padding-right: 0;
  }

  .page-about .about-timeline-item:nth-child(even) .about-timeline-year {
    grid-column: 1;
    grid-row: 1;
    text-align: right;
    align-items: flex-end;
    padding-left: 0;
    padding-right: 28px;
  }

  .page-about .about-ecosystem-grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }

  .page-about .about-ecosystem-aside {
    grid-template-columns: 1fr;
    align-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-about .about-sub-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-badge-matrix {
    grid-template-columns: auto 1fr;
    align-items: center;
  }

  .page-about .about-badge-row {
    justify-content: end;
  }

  .page-about .about-cta-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: center;
  }

  .page-about .about-cta-right {
    justify-content: flex-end;
  }

  .page-about .about-license-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-license-card-wide {
    grid-column: span 2;
  }

  .page-about .about-license-card-time {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    min-height: 720px;
  }

  .page-about .about-section-head {
    grid-template-columns: 1fr auto;
    align-items: end;
    justify-content: space-between;
  }

  .page-about .about-section-lead {
    max-width: 46ch;
  }

  .page-about .about-ecosystem-head {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

  .page-about .about-stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .page-about .about-hero-strip,
  .page-about .about-position::before,
  .page-about .about-milestones::after {
    display: none;
  }
}