.page-about {
  --about-orange: #FF6B35;
  --about-violet: #7B2FBE;
  --about-gold: #FFD700;
  --about-sky: #A8D0E6;
  --about-deep: #0B1A30;
  --about-grad: #200A3A;
  --about-card-bg: rgba(255, 255, 255, 0.06);
  --about-card-border: rgba(255, 255, 255, 0.09);
  overflow-x: hidden;
  background:
    radial-gradient(ellipse at 10% 30%, rgba(123, 47, 190, 0.12), transparent 50%),
    var(--about-deep);
  color: var(--color-text);
}

/* ===== 英雄区 ===== */
.about-hero {
  position: relative;
  padding: 2.5rem 0 4rem;
  background:
    radial-gradient(ellipse at 85% 15%, rgba(123, 47, 190, 0.45), transparent 60%),
    radial-gradient(ellipse at 15% 85%, rgba(255, 107, 53, 0.18), transparent 45%),
    radial-gradient(circle at 70% 70%, rgba(255, 215, 0, 0.08), transparent 30%),
    linear-gradient(135deg, var(--about-deep) 0%, var(--about-grad) 70%, #12052a 100%);
}

.about-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(168, 208, 230, 0.8);
  margin-bottom: 2rem;
}

.about-breadcrumb a {
  color: rgba(168, 208, 230, 0.8);
  text-decoration: none;
  transition: color var(--transition-base);
}

.about-breadcrumb a:hover {
  color: var(--about-orange);
}

.about-breadcrumb-sep {
  color: rgba(168, 208, 230, 0.4);
}

.about-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

.about-kicker {
  display: inline-block;
  padding: 0.4rem 1.1rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 107, 53, 0.14);
  border: 1px solid rgba(255, 107, 53, 0.35);
  color: var(--about-orange);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.about-hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 6vw, 3.75rem);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 1.1rem;
  color: #fff;
}

.about-hero-lead {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3.5vw, 1.875rem);
  font-weight: 800;
  font-style: italic;
  color: var(--about-gold);
  margin: 0 0 1.25rem;
}

.about-hero-desc {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 0 2rem;
  max-width: 56ch;
}

.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.about-hero-figure {
  position: relative;
  margin: 0;
  max-width: 560px;
}

.about-hero-figure::before {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: calc(var(--radius-lg) + 14px);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.4), rgba(123, 47, 190, 0.35), rgba(168, 208, 230, 0.1));
  filter: blur(20px);
  z-index: 0;
}

.about-hero-figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

/* ===== 区块通用头 ===== */
.about-section-head {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  margin-bottom: 2.5rem;
}

.about-section-index {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  font-weight: 900;
  font-style: italic;
  line-height: 0.9;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--about-orange), var(--about-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.about-section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
  margin: 0 0 0.35rem;
}

.about-section-head div > p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.66);
  margin: 0;
}

/* ===== 品牌故事 ===== */
.about-story {
  padding: 4rem 0;
  background:
    radial-gradient(ellipse at 90% 20%, rgba(123, 47, 190, 0.2), transparent 50%),
    transparent;
}

.about-story-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.about-story-lead {
  font-size: 1.06rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 1.1rem;
}

.about-story-text > p {
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
  margin: 0 0 1.1rem;
}

.about-story-quote {
  margin: 2rem 0 0;
  padding: 1.5rem 1.75rem;
  border-left: 4px solid var(--about-orange);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(123, 47, 190, 0.08));
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.about-story-quote p {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  font-style: italic;
  line-height: 1.6;
  color: #fff;
  margin: 0 0 0.75rem;
}

.about-story-quote cite {
  font-style: normal;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--about-gold);
}

.about-story-facts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  align-content: start;
}

.about-fact-item {
  background: linear-gradient(145deg, rgba(123, 47, 190, 0.16), rgba(11, 26, 48, 0.7));
  border: 1px solid rgba(168, 208, 230, 0.12);
  border-radius: var(--radius-lg);
  padding: 1.3rem 0.75rem;
  text-align: center;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.about-fact-item:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 215, 0, 0.35);
}

.about-fact-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--about-gold);
}

.about-fact-label {
  display: block;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 0.55rem;
}

/* ===== 发展里程碑 ===== */
.about-milestones {
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse at 80% 10%, rgba(123, 47, 190, 0.28), transparent 55%),
    radial-gradient(ellipse at 20% 95%, rgba(255, 107, 53, 0.12), transparent 45%),
    rgba(8, 18, 34, 0.6);
}

.about-timeline {
  position: relative;
  margin-top: 2.75rem;
}

.about-timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--about-orange), var(--about-violet), transparent);
}

.about-timeline-item {
  position: relative;
  padding-left: 3rem;
  padding-bottom: 2.5rem;
}

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

.about-timeline-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-gold);
  box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.15), 0 0 18px rgba(255, 215, 0, 0.45);
  z-index: 1;
}

.about-timeline-year {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--about-gold);
  margin-bottom: 0.6rem;
}

.about-timeline-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 0.5rem;
}

.about-timeline-body p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
  max-width: 58ch;
}

.about-timeline-figure {
  margin: 3rem 0 0;
}

.about-timeline-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
}

/* ===== 资质与认证 ===== */
.about-certifications {
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse at 10% 100%, rgba(27, 59, 111, 0.5), transparent 50%),
    rgba(6, 15, 28, 0.35);
}

.about-cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.about-cert-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  padding: 1.85rem 1.5rem;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.about-cert-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 53, 0.45);
  box-shadow:
    0 12px 44px rgba(255, 107, 53, 0.14),
    0 0 0 1px rgba(255, 215, 0, 0.08),
    0 0 32px rgba(123, 47, 190, 0.18);
}

.about-cert-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  margin-bottom: 1.25rem;
  background: rgba(123, 47, 190, 0.18);
  border: 1px solid rgba(123, 47, 190, 0.25);
}

.about-cert-card:nth-child(2) .about-cert-icon {
  background: rgba(255, 107, 53, 0.12);
  border-color: rgba(255, 107, 53, 0.25);
}

.about-cert-card:nth-child(3) .about-cert-icon {
  background: rgba(27, 59, 111, 0.35);
  border-color: rgba(168, 208, 230, 0.2);
}

.about-cert-card:nth-child(4) .about-cert-icon {
  background: rgba(255, 215, 0, 0.08);
  border-color: rgba(255, 215, 0, 0.25);
}

.about-cert-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.about-cert-card p {
  font-size: 0.9375rem;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.74);
  margin: 0;
}

.about-cert-figure {
  margin: 2rem auto 0;
  max-width: 680px;
}

.about-cert-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.4);
}

/* ===== 服务承诺 ===== */
.about-promises {
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse at 90% 30%, rgba(255, 107, 53, 0.14), transparent 55%),
    rgba(11, 26, 48, 0.35);
}

.about-promise-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-promise-item {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.about-promise-item:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.about-promise-num {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--about-orange);
  min-width: 3rem;
}

.about-promise-item:nth-child(even) .about-promise-num {
  color: var(--about-gold);
}

.about-promise-body h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  margin: 0 0 0.5rem;
}

.about-promise-body p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
  max-width: 60ch;
}

/* ===== CTA ===== */
.about-cta {
  padding: 4rem 0 5rem;
  background:
    radial-gradient(ellipse at 50% 100%, rgba(123, 47, 190, 0.45), transparent 60%),
    linear-gradient(180deg, rgba(11, 26, 48, 0.2), rgba(32, 10, 58, 0.7));
}

.about-cta-inner {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.08), rgba(123, 47, 190, 0.12)),
    rgba(11, 26, 48, 0.6);
  border: 1px solid rgba(168, 208, 230, 0.16);
  border-radius: calc(var(--radius-lg) + 8px);
  padding: 3rem 1.6rem;
  overflow: hidden;
}

.about-cta-inner::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.3), transparent 70%);
}

.about-cta-inner h2 {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  font-weight: 900;
  font-style: italic;
  color: #fff;
  margin: 0 0 1rem;
}

.about-cta-inner p {
  position: relative;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
  margin: 0 auto 2rem;
  max-width: 56ch;
}

.about-cta-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* ===== 桌面断点 ===== */
@media (min-width: 768px) {
  .about-hero {
    padding-top: 4rem;
    padding-bottom: 6rem;
  }

  .about-breadcrumb {
    margin-bottom: 3.5rem;
  }

  .about-hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 4.5rem;
  }

  .about-hero-figure {
    transform: rotate(2deg) translateY(8px);
  }

  .about-story {
    padding: 6rem 0;
  }

  .about-story-grid {
    grid-template-columns: 3fr 2fr;
    gap: 3.5rem;
    align-items: start;
  }

  .about-story-lead {
    font-size: 1.14rem;
  }

  .about-story-facts {
    gap: 1.25rem;
  }

  .about-fact-item {
    padding: 1.6rem 1rem;
  }

  .about-milestones {
    padding: 6.5rem 0;
  }

  .about-timeline {
    margin-left: 1.5rem;
  }

  .about-timeline-item {
    padding-left: 3.5rem;
    padding-bottom: 3rem;
  }

  .about-timeline-figure {
    margin-top: 4rem;
  }

  .about-certifications {
    padding: 6rem 0;
  }

  .about-cert-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .about-cert-card {
    padding: 2.2rem 1.75rem;
  }

  .about-cert-figure {
    margin-top: 2.5rem;
    max-width: 720px;
  }

  .about-promises {
    padding: 6rem 0;
  }

  .about-promise-item {
    gap: 2.5rem;
    padding: 1.9rem 0;
  }

  .about-promise-num {
    min-width: 4.5rem;
    font-size: 2rem;
  }

  .about-cta {
    padding: 5.5rem 0 7rem;
  }

  .about-cta-inner {
    padding: 4rem 3.5rem;
  }
}

@media (min-width: 1024px) {
  .about-hero-grid {
    gap: 6rem;
  }

  .about-story-grid {
    gap: 5rem;
  }

  .about-timeline {
    margin-left: 2rem;
  }

  .about-promise-item {
    padding-left: 2rem;
  }
}