/* ===== 品牌档案 · 页面专属样式 ===== */
.page-about {
  background: var(--c-bg);
  overflow-x: hidden;
}

/* ---------- 首屏档案区 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--c-primary);
  color: var(--c-text-inverse);
  padding: 48px 0 88px;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: -8%;
  width: 46%;
  background: linear-gradient(135deg, rgba(0, 255, 170, 0.18), rgba(108, 0, 255, 0.5));
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-about .about-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 48px;
}
.page-about .about-hero .breadcrumb__link {
  color: rgba(255, 255, 255, 0.68);
}
.page-about .about-hero .breadcrumb__link:hover {
  color: var(--c-neon);
}
.page-about .about-hero .breadcrumb__current {
  color: #fff;
  font-weight: 600;
}
.page-about .about-hero__content {
  position: relative;
  z-index: 1;
  max-width: 880px;
}
.page-about .about-hero__version {
  display: inline-flex;
  align-items: center;
  background: var(--c-orange);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  text-transform: uppercase;
}
.page-about .about-hero__content h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(44px, 10vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.page-about .about-hero__subtitle {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--c-neon);
  margin: 0 0 20px;
}
.page-about .about-hero__lead {
  font-size: var(--text-md);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.82);
  max-width: 680px;
  margin: 0 0 32px;
}
.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  margin: 0;
  padding: 0;
}
.page-about .about-hero__meta div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.page-about .about-hero__meta dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.48);
}
.page-about .about-hero__meta dd {
  margin: 0;
  font-weight: 600;
}

/* ---------- 通用章节标题 ---------- */
.page-about .about-philosophy,
.page-about .about-tech {
  padding: 80px 0;
}
.page-about .about-milestones,
.page-about .about-honors {
  padding: 80px 0;
  background: var(--c-primary);
  color: var(--c-text-inverse);
  position: relative;
  overflow: hidden;
}
.page-about .about-milestones::after {
  content: "";
  position: absolute;
  right: -80px;
  top: 120px;
  width: 260px;
  height: 260px;
  background: rgba(108, 0, 255, 0.16);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.page-about .about-section-head {
  display: flex;
  align-items: stretch;
  gap: 20px;
  margin-bottom: 48px;
}
.page-about .about-section-num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-2xl);
  color: var(--c-neon);
  border: 2px solid var(--c-neon);
  background: var(--c-surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  height: 64px;
  align-self: flex-start;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 82% 100%, 0 100%);
}
.page-about .about-section-eyebrow {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-light);
  margin: 0 0 4px;
}
.page-about .about-section-head h2 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  line-height: 1.15;
  margin: 0;
}
.page-about .about-section-head--light .about-section-num {
  color: var(--c-orange);
  border-color: var(--c-orange);
  background: transparent;
}
.page-about .about-section-head--light .about-section-eyebrow {
  color: rgba(255, 255, 255, 0.5);
}
.page-about .about-section-head--light h2 {
  color: #fff;
}

/* ---------- 01 品牌理念 ---------- */
.page-about .about-philosophy__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.page-about .about-philosophy__slogan {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--c-primary);
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.page-about .about-philosophy__slogan::before {
  content: "";
  width: 48px;
  height: 4px;
  background: var(--c-neon);
  flex-shrink: 0;
}
.page-about .about-philosophy__text {
  color: var(--c-text-light);
  line-height: 1.7;
  margin: 0 0 16px;
}
.page-about .about-philosophy__values {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}
.page-about .about-value {
  border: 2px solid var(--c-primary);
  border-left: 8px solid var(--c-neon);
  background: var(--c-surface);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.page-about .about-value__num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-sm);
  color: var(--c-neon);
}
.page-about .about-value h3 {
  font-size: var(--text-lg);
  margin: 12px 0 6px;
  color: var(--c-primary);
}
.page-about .about-value p {
  margin: 0;
  color: var(--c-text-light);
  line-height: 1.6;
  font-size: var(--text-sm);
}
.page-about .about-philosophy__media {
  margin: 0;
  position: relative;
}
.page-about .about-philosophy__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  box-shadow: var(--shadow-lg);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}
.page-about .about-philosophy__media figcaption {
  margin-top: 12px;
  font-size: var(--text-sm);
  color: var(--c-text-light);
}

/* ---------- 02 发展里程碑 ---------- */
.page-about .about-milestones__intro {
  color: rgba(255, 255, 255, 0.75);
  max-width: 720px;
  margin: 0 0 48px;
  font-size: var(--text-lg);
  line-height: 1.6;
}
.page-about .about-timeline {
  position: relative;
  padding-left: 40px;
}
.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 12px;
  bottom: 12px;
  width: 3px;
  background: linear-gradient(180deg, var(--c-neon), var(--c-purple));
}
.page-about .about-timeline__item {
  position: relative;
  margin-bottom: 28px;
}
.page-about .about-timeline__dot {
  position: absolute;
  left: -36px;
  top: 34px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-orange);
  border: 3px solid var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-neon);
}
.page-about .about-timeline__card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 4px solid var(--c-neon);
  padding: 24px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.22);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.page-about .about-timeline__card:hover {
  border-color: var(--c-neon);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.page-about .about-timeline__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--c-orange);
  border: 1px solid rgba(255, 107, 0, 0.48);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}
.page-about .about-timeline__card h3 {
  color: #fff;
  font-size: var(--text-lg);
  margin: 0 0 8px;
}
.page-about .about-timeline__card p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.65;
  margin: 0;
}
.page-about .about-milestones__more {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.page-about .about-milestones__more span {
  color: rgba(255, 255, 255, 0.65);
}
.page-about .about-milestones__more .btn--outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}
.page-about .about-milestones__more .btn--outline:hover {
  color: var(--c-neon);
  border-color: var(--c-neon);
}

/* ---------- 03 技术实力 ---------- */
.page-about .about-tech {
  position: relative;
}
.page-about .about-tech::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--c-neon) 0 18%, var(--c-purple) 18% 52%, var(--c-orange) 52% 100%);
}
.page-about .about-tech__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.page-about .about-tech__media {
  margin: 0;
}
.page-about .about-tech__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--c-primary);
  box-shadow: var(--shadow-lg);
}
.page-about .about-tech__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--c-text);
  line-height: 1.7;
}
.page-about .about-tech__content > p {
  margin: 0;
}
.page-about .about-tech__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}
.page-about .about-tech__list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text);
}
.page-about .about-tech__list-num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-xs);
  color: var(--c-neon);
  background: var(--c-primary);
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 64px;
}
.page-about .about-stat {
  position: relative;
  overflow: hidden;
  background: var(--c-primary);
  color: #fff;
  padding: 28px 24px;
  border: 1px solid var(--c-primary-light);
}
.page-about .about-stat::after {
  content: "";
  position: absolute;
  right: -12px;
  top: -12px;
  width: 42px;
  height: 42px;
  background: var(--c-purple);
  opacity: 0.7;
  transform: rotate(45deg);
}
.page-about .about-stat__num {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1;
  color: var(--c-neon);
  margin: 0 0 8px;
}
.page-about .about-stat__suffix {
  font-size: 0.4em;
  color: var(--c-orange);
  margin-left: 2px;
}
.page-about .about-stat__label {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: var(--text-sm);
}

/* ---------- 04 资质与荣誉 ---------- */
.page-about .about-honors {
  position: relative;
}
.page-about .about-honors::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: 80px;
  width: 260px;
  height: 260px;
  background: rgba(0, 255, 170, 0.1);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
}
.page-about .about-honors__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}
.page-about .about-honor {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 28px 24px;
  transition: transform var(--duration) var(--ease), border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}
.page-about .about-honor:hover {
  transform: translateY(-6px);
  border-color: var(--c-neon);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}
.page-about .about-honor__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: var(--text-lg);
  background: var(--c-purple);
  color: #fff;
  margin-bottom: 16px;
  border-radius: var(--radius-sm);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}
.page-about .about-honor:nth-child(2) .about-honor__badge {
  background: var(--c-orange);
}
.page-about .about-honor:nth-child(3) .about-honor__badge {
  background: var(--c-neon);
  color: var(--c-primary);
}
.page-about .about-honor:nth-child(4) .about-honor__badge {
  background: #fff;
  color: var(--c-primary);
}
.page-about .about-honor h3 {
  color: #fff;
  font-size: var(--text-lg);
  margin: 0 0 8px;
}
.page-about .about-honor p {
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.6;
  margin: 0;
}
.page-about .about-honors__media {
  position: relative;
  z-index: 1;
  margin: 0 0 48px;
}
.page-about .about-honors__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-lg);
}
.page-about .about-honors__media figcaption {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.55);
  font-size: var(--text-sm);
}
.page-about .about-honors__cta {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 40px;
  background: linear-gradient(120deg, rgba(0, 255, 170, 0.12), rgba(108, 0, 255, 0.24));
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.page-about .about-honors__cta p {
  margin: 0;
  color: #fff;
  font-size: var(--text-lg);
  font-weight: 600;
}
.page-about .about-honors__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-honors__cta .btn--outline {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.page-about .about-honors__cta .btn--outline:hover {
  color: var(--c-neon);
  border-color: var(--c-neon);
}

/* ---------- 响应式适配 ---------- */
@media (min-width: 640px) {
  .page-about .about-philosophy__values {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 56px 0 104px;
  }
  .page-about .about-honors__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .page-about .about-hero {
    padding: 72px 0 120px;
  }
  .page-about .about-hero__lead {
    font-size: var(--text-lg);
  }
  .page-about .about-philosophy,
  .page-about .about-tech,
  .page-about .about-milestones,
  .page-about .about-honors {
    padding: 120px 0;
  }
  .page-about .about-philosophy__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 64px;
  }
  .page-about .about-tech__grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
    align-items: center;
  }
  .page-about .about-timeline {
    padding-left: 120px;
  }
  .page-about .about-timeline::before {
    left: 30px;
  }
  .page-about .about-timeline__dot {
    left: -97px;
  }
  .page-about .about-timeline__item {
    max-width: 760px;
  }
  .page-about .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-honors__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-about .about-honors__media {
    max-width: 960px;
    margin-left: auto;
    margin-right: auto;
  }
}