/* About Us — 与 BRT motor 主站设计系统一致 */
.about-page {
  background: var(--apple-gray-1);
}

.about-hero {
  background: linear-gradient(135deg, #1d1d1f 0%, #2d2d30 45%, #0071e3 120%);
  color: #fff;
  padding: 72px 20px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 80%, rgba(0, 113, 227, 0.25) 0%, transparent 50%),
    radial-gradient(circle at 75% 20%, rgba(41, 151, 255, 0.15) 0%, transparent 45%);
  pointer-events: none;
}

.about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.about-hero__label {
  display: inline-block;
  background: rgba(0, 113, 227, 0.2);
  color: #7ec8ff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
  border: 1px solid rgba(41, 151, 255, 0.35);
}

.about-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.about-hero h1 .accent {
  color: #2997ff;
}

.about-hero__subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 600px;
  margin: 0 auto 32px;
}

.about-hero__stats {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 5vw, 48px);
  flex-wrap: wrap;
  margin-top: 8px;
}

.about-hero__stat .num {
  font-size: 2rem;
  font-weight: 700;
  color: #2997ff;
  display: block;
  line-height: 1;
}

.about-hero__stat .label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 6px;
}

.about-section {
  padding: 64px 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.about-section--white {
  background: #fff;
  max-width: none;
}

.about-section--white .about-section__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about-section--muted {
  background: #eef0f4;
  max-width: none;
}

.about-section--muted .about-section__inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about-section__header {
  text-align: center;
  margin-bottom: 48px;
}

.about-section__header .label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--apple-blue);
  margin-bottom: 8px;
}

.about-section__header h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--apple-black);
  letter-spacing: -0.02em;
}

.about-section__header p {
  font-size: 1rem;
  color: #6e6e73;
  max-width: 580px;
  margin: 0 auto;
}

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-story__image {
  background: var(--apple-gray-1);
  border-radius: var(--apple-radius);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--apple-gray-2);
  box-shadow: var(--apple-shadow);
  overflow: hidden;
}

.about-story__img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  display: block;
}

.about-story__image .placeholder {
  text-align: center;
  color: #86868b;
}

.about-story__image .placeholder i {
  font-size: 3rem;
  display: block;
  margin-bottom: 12px;
  color: var(--apple-gray-3);
}

.about-story__text h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--apple-black);
}

.about-story__text p {
  font-size: 0.95rem;
  color: #424245;
  margin-bottom: 14px;
}

.about-highlight {
  background: rgba(0, 113, 227, 0.08);
  border-left: 3px solid var(--apple-blue);
  padding: 14px 18px;
  border-radius: 0 10px 10px 0;
  font-size: 0.95rem;
  color: #1d1d1f;
  margin-top: 20px;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about-value-card {
  background: #fff;
  border-radius: var(--apple-radius);
  padding: 28px 22px;
  text-align: center;
  border: 1px solid var(--apple-gray-2);
  box-shadow: var(--apple-shadow);
  transition: var(--apple-transition);
  height: 100%;
}

.about-value-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 113, 227, 0.12);
}

.about-value-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 1.35rem;
  background: rgba(0, 113, 227, 0.1);
  color: var(--apple-blue);
}

.about-value-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--apple-black);
}

.about-value-card p {
  font-size: 0.875rem;
  color: #6e6e73;
  margin: 0;
}

.about-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}

.about-process::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12.5%;
  width: 75%;
  height: 2px;
  background: var(--apple-gray-2);
  z-index: 0;
}

.about-process__step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.about-process__num {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--apple-gray-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--apple-black);
  transition: var(--apple-transition);
  box-shadow: var(--apple-shadow);
}

.about-process__step:hover .about-process__num {
  background: var(--apple-blue);
  border-color: var(--apple-blue);
  color: #fff;
}

.about-process__step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--apple-black);
}

.about-process__step p {
  font-size: 0.8rem;
  color: #6e6e73;
  line-height: 1.5;
  margin: 0;
}

.about-why {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.about-why__item {
  display: flex;
  gap: 14px;
  background: #fff;
  padding: 18px;
  border-radius: var(--apple-radius);
  border: 1px solid var(--apple-gray-2);
  box-shadow: var(--apple-shadow);
  transition: var(--apple-transition);
}

.about-why__item:hover {
  border-color: rgba(0, 113, 227, 0.25);
}

.about-why__icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
  background: rgba(0, 113, 227, 0.1);
  color: var(--apple-blue);
}

.about-why__text h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--apple-black);
  margin-bottom: 4px;
}

.about-why__text p {
  font-size: 0.8rem;
  color: #6e6e73;
  margin: 0;
}

.about-partners {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 20px;
  flex-wrap: wrap;
}

.about-partner {
  padding: 20px 28px;
  background: #fff;
  border-radius: var(--apple-radius);
  border: 1px solid var(--apple-gray-2);
  text-align: center;
  min-width: 140px;
  box-shadow: var(--apple-shadow);
}

.about-partner__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--apple-black);
  letter-spacing: 0.02em;
}

.about-partner__sub {
  font-size: 0.7rem;
  color: #86868b;
  margin-top: 4px;
}

.about-feedback {
  background: linear-gradient(180deg, #eef0f4 0%, #e8eaef 100%);
  padding: 48px 0 56px;
  border-top: 1px solid var(--apple-gray-2);
}

.about-feedback__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.about-feedback__header {
  text-align: center;
  margin-bottom: 28px;
}

.about-feedback__header .label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--apple-blue);
  margin-bottom: 8px;
}

.about-feedback__header h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--apple-black);
  margin: 0;
  letter-spacing: -0.02em;
}

.about-feedback__track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.about-feedback__track::-webkit-scrollbar {
  height: 6px;
}

.about-feedback__track::-webkit-scrollbar-thumb {
  background: rgba(0, 113, 227, 0.35);
  border-radius: 3px;
}

.about-feedback__item {
  flex: 0 0 calc((100% - 84px) / 8);
  min-width: 140px;
  scroll-snap-align: start;
}

.about-feedback__img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--apple-gray-2);
  box-shadow: var(--apple-shadow);
  display: block;
  background: #fff;
}

.about-cta {
  background: linear-gradient(135deg, #1d1d1f 0%, #0071e3 100%);
  color: #fff;
  text-align: center;
  padding: 64px 20px;
}

.about-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.about-cta p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 28px;
}

.about-cta__buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.about-cta .btn-outline-light {
  border-width: 2px;
}

.about-cta .btn-outline-light:hover {
  background: #fff;
  color: var(--apple-blue);
}

@media (max-width: 768px) {
  .about-story {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

  .about-why {
    grid-template-columns: 1fr;
  }

  .about-process {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .about-process::before {
    display: none;
  }

  .about-feedback__item {
    flex: 0 0 72%;
    min-width: 200px;
  }
}