.page-about {
  background-color: #0A1E3F;
  background-image: linear-gradient(180deg, #0A1E3F 0%, #0B2147 50%, #0A1E3F 100%);
  color: #FFFFFF;
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}

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

.page-about a:focus-visible,
.page-about button:focus-visible {
  outline: 2px solid #00FF94;
  outline-offset: 3px;
}

/* 章节通用头 */
.page-about .section__header {
  margin-bottom: 1.5rem;
}

.page-about .section__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  padding: 0.1rem 0.5rem;
  background: #FF3B30;
  color: #FFFFFF;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
  box-shadow: 3px 3px 0 rgba(0, 0, 0, 0.3);
}

.page-about .section__tag {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border: 1px solid #FF5A5F;
  color: #FF5A5F;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-about .section__title {
  margin: 0 0 0.35rem;
  font-family: 'Anton', 'Archivo Black', 'Noto Sans SC', sans-serif;
  font-style: italic;
  font-weight: 700;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

.page-about .section__lead {
  max-width: 40rem;
  margin: 0.4rem 0 0;
  color: #B0BEC5;
  font-size: 1rem;
}

/* 数据数字与标签 */
.page-about .data-number {
  font-family: 'JetBrains Mono', monospace;
  color: #00FF94;
  font-weight: 700;
  line-height: 1.1;
  text-shadow: 0 0 12px rgba(0, 255, 148, 0.35);
}

.page-about .data-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #B0BEC5;
}

/* ===== 首屏 ===== */
.page-about .ab-hero {
  position: relative;
  padding: 2.5rem 0 3.5rem;
  border-bottom: 6px solid #FF3B30;
  background:
    linear-gradient(135deg, transparent 75%, rgba(255, 59, 48, 0.16) 75%) top right / 220px 220px no-repeat,
    linear-gradient(180deg, #0A1E3F 0%, #0D2450 100%);
}

.page-about .ab-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 36px 36px;
}

.page-about .ab-hero .container {
  position: relative;
  z-index: 1;
}

.page-about .ab-hero__inner {
  padding-top: 2rem;
}

.page-about .ab-hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.75rem;
  border: 2px solid #00FF94;
  color: #00FF94;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.page-about .ab-hero__tag::before {
  content: "";
  width: 8px;
  height: 8px;
  background: #00FF94;
  box-shadow: 0 0 10px rgba(0, 255, 148, 0.8);
}

.page-about .ab-hero__title {
  margin: 0 0 1rem;
  font-family: 'Anton', 'Archivo Black', 'Noto Sans SC', sans-serif;
  font-style: italic;
  font-weight: 700;
  font-size: clamp(2.8rem, 8vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.page-about .ab-hero__title span {
  display: block;
  color: #FF3B30;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.25);
}

.page-about .ab-hero__sub {
  margin: 0 0 1.25rem;
  padding-left: 0.75rem;
  border-left: 4px solid #FF3B30;
  color: #FFFFFF;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1rem;
  letter-spacing: 0.06em;
}

.page-about .ab-hero__lead {
  max-width: 44rem;
  margin: 0 0 2.25rem;
  color: #B0BEC5;
  font-size: 1rem;
}

.page-about .ab-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.page-about .ab-hero__meta-item {
  padding-left: 0.75rem;
  border-left: 3px solid #FF3B30;
  text-align: left;
}

.page-about .ab-hero__meta-item .data-number {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.15rem;
}

.page-about .ab-hero__meta-item .data-label {
  font-size: 0.68rem;
}

/* ===== 01 品牌起源 ===== */
.page-about .ab-origin {
  padding: 3.5rem 0;
  border-top: 4px solid #00FF94;
  background: linear-gradient(180deg, #0A1E3F 0%, #1A3260 100%);
}

.page-about .ab-origin__grid {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.page-about .ab-origin__figure {
  margin: 0;
}

.page-about .ab-origin__figure img {
  border: 2px solid #FF5A5F;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.25);
  object-fit: cover;
}

.page-about .ab-origin__figure figcaption {
  margin-top: 0.6rem;
  padding-left: 0.75rem;
  border-left: 3px solid #FF3B30;
  color: #B0BEC5;
  font-size: 0.85rem;
}

.page-about .ab-origin__content p {
  margin: 0 0 1rem;
  color: rgba(255, 255, 255, 0.88);
}

.page-about .ab-origin__points {
  display: grid;
  gap: 0.65rem;
  margin: 1.5rem 0 0;
  padding: 1.25rem;
  list-style: none;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-left: 5px solid #FF3B30;
  background: rgba(10, 30, 63, 0.6);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.2);
}

.page-about .ab-origin__points li {
  color: #B0BEC5;
  font-size: 0.95rem;
}

.page-about .ab-origin__points strong {
  color: #FFFFFF;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

/* ===== 02 里程碑 ===== */
.page-about .ab-timeline {
  padding: 3.5rem 0;
  border-top: 4px solid #FF3B30;
  background: #0A1E3F;
}

.page-about .ab-timeline__track {
  display: flex;
  gap: 1rem;
  margin: 0 -1.25rem;
  padding: 2rem 1.25rem 1.25rem;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 1.25rem;
  scrollbar-width: thin;
}

.page-about .ab-timeline__item {
  flex: 0 0 84%;
  position: relative;
  scroll-snap-align: start;
}

.page-about .ab-timeline__item::before {
  content: "";
  display: block;
  width: 100%;
  height: 4px;
  background: #FF3B30;
  margin-bottom: 1rem;
}

.page-about .ab-timeline__year {
  margin-bottom: 0.75rem;
  color: #FF3B30;
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(2.2rem, 9vw, 3.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-about .ab-timeline__card {
  padding: 1.1rem 1.2rem;
  border: 2px solid rgba(255, 255, 255, 0.75);
  background: #1A3260;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.3);
}

.page-about .ab-timeline__card h3 {
  margin: 0 0 0.5rem;
  font-family: 'Anton', 'Archivo Black', 'Noto Sans SC', sans-serif;
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.page-about .ab-timeline__card p {
  margin: 0;
  color: #B0BEC5;
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== 03 数据规模 ===== */
.page-about .ab-data {
  padding: 3.5rem 0;
  border-top: 4px solid #00FF94;
  background: linear-gradient(180deg, #0A1E3F 0%, #0C2450 100%);
}

.page-about .ab-data__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 2.5rem 0 3rem;
}

.page-about .ab-data__stat {
  position: relative;
  padding: 1.25rem 1rem 1rem;
  border: 2px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.2);
}

.page-about .ab-data__stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
}

.page-about .ab-data__stat:nth-child(odd)::before {
  background: #FF3B30;
}

.page-about .ab-data__stat:nth-child(even)::before {
  background: #00FF94;
}

.page-about .ab-data__stat .data-number {
  display: block;
  font-size: 1.9rem;
  margin-bottom: 0.2rem;
  color: #00FF94;
}

.page-about .ab-data__stat .data-label {
  font-size: 0.68rem;
}

.page-about .ab-data__panel {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  padding: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.14);
  background: #1A3260;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.2);
}

.page-about .ab-data__figure {
  margin: 0;
}

.page-about .ab-data__figure img {
  border: 2px solid #FF5A5F;
  object-fit: cover;
}

.page-about .ab-data__figure figcaption {
  margin-top: 0.6rem;
  padding-left: 0.75rem;
  border-left: 3px solid #00FF94;
  color: #B0BEC5;
  font-size: 0.85rem;
}

.page-about .ab-data__content h3 {
  margin: 0 0 0.75rem;
  font-family: 'Anton', 'Archivo Black', 'Noto Sans SC', sans-serif;
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #FFFFFF;
}

.page-about .ab-data__content p {
  margin: 0 0 0.85rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
}

/* ===== 04 资历与合规 ===== */
.page-about .ab-compliance {
  padding: 3.5rem 0 4rem;
  border-top: 4px solid #FF3B30;
  background: #0A1E3F;
}

.page-about .ab-compliance__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.page-about .ab-compliance .card {
  height: 100%;
  padding: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-left: 5px solid #FF5A5F;
  background: #1A3260;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.2);
}

.page-about .ab-compliance .card h3 {
  margin: 0 0 0.6rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #00FF94;
}

.page-about .ab-compliance__icp,
.page-about .ab-compliance__contact {
  margin: 0 0 0.5rem;
  color: #FFFFFF;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  word-break: break-all;
}

.page-about .ab-compliance__note {
  margin: 0;
  color: #B0BEC5;
  font-size: 0.85rem;
  line-height: 1.5;
}

.page-about .ab-compliance__footer {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border-left: 4px solid #FF3B30;
  background: rgba(255, 59, 48, 0.08);
  color: #B0BEC5;
  font-size: 0.9rem;
}

/* ===== 05 未来愿景 ===== */
.page-about .ab-future {
  position: relative;
  display: flex;
  align-items: center;
  padding: 3.5rem 0 4rem;
  overflow: hidden;
  border-top: 6px solid #00FF94;
  background: #0A1E3F;
}

.page-about .ab-future__figure {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
}

.page-about .ab-future__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-about .ab-future .container {
  position: relative;
  z-index: 1;
}

.page-about .ab-future__content {
  max-width: 44rem;
  padding: 1.75rem 1.5rem;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(10, 30, 63, 0.88);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.3);
}

.page-about .ab-future__content h2 {
  margin: 1rem 0 1rem;
  font-family: 'Anton', 'Archivo Black', 'Noto Sans SC', sans-serif;
  font-style: italic;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: #FFFFFF;
}

.page-about .ab-future__content p {
  margin: 0 0 1.5rem;
  color: rgba(255, 255, 255, 0.86);
}

.page-about .ab-future__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.page-about .ab-future .section__tag.tag--green {
  border-color: #00FF94;
  color: #00FF94;
}

/* ===== 平板与桌面断点 ===== */
@media (min-width: 768px) {
  .page-about .ab-hero {
    padding: 3.5rem 0 4.5rem;
  }

  .page-about .ab-hero__inner {
    padding-top: 3rem;
  }

  .page-about .ab-hero__meta {
    max-width: 36rem;
  }

  .page-about .ab-hero__meta-item .data-number {
    font-size: 1.75rem;
  }

  .page-about .ab-origin__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .ab-origin__figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-about .ab-timeline__track {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin: 0;
    padding: 2.5rem 0 0;
    overflow: visible;
    scroll-snap-type: none;
    scroll-padding-left: 0;
  }

  .page-about .ab-timeline__item {
    display: grid;
    grid-template-columns: 180px 1fr;
    column-gap: 2.5rem;
    align-items: start;
    position: relative;
    padding: 0 0 2.5rem 2rem;
    flex: none;
    scroll-snap-align: initial;
    border-left: 2px solid rgba(255, 255, 255, 0.18);
  }

  .page-about .ab-timeline__item:last-child {
    padding-bottom: 0;
  }

  .page-about .ab-timeline__item::before {
    content: "";
    position: absolute;
    left: -0.6rem;
    top: 0.4rem;
    width: 0.9rem;
    height: 0.9rem;
    border-radius: 50%;
    background: #FF3B30;
    border: 3px solid #0A1E3F;
    box-shadow: 0 0 0 2px #FF3B30;
    display: block;
    margin-bottom: 0;
  }

  .page-about .ab-timeline__year {
    margin-bottom: 0;
    text-align: right;
    font-size: clamp(2.2rem, 4vw, 3.5rem);
  }

  .page-about .ab-timeline__card {
    box-shadow: 7px 7px 0 rgba(0, 0, 0, 0.28);
  }

  .page-about .ab-data__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .ab-data__panel {
    grid-template-columns: 1fr 1.1fr;
    gap: 2rem;
    padding: 1.5rem;
  }

  .page-about .ab-compliance__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .ab-future {
    min-height: 70vh;
  }

  .page-about .ab-future__content {
    max-width: 34rem;
    margin-left: auto;
  }
}

@media (min-width: 1024px) {
  .page-about .ab-compliance__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .ab-hero__title {
    font-size: clamp(3.5rem, 6vw, 5.5rem);
  }

  .page-about .ab-data__stat {
    padding: 1.5rem 1.25rem 1.25rem;
  }

  .page-about .ab-data__stat .data-number {
    font-size: 2.2rem;
  }
}