/* ============================================================
   Brand Advantages v3.0 - 移动端顺序渐入
   ============================================================ */
.advantages {
  background: var(--color-white);
  padding: var(--section-padding) 0 0;
}

.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-border-light);
  border-left: 1px solid var(--color-border-light);
}

.advantages__card {
  text-align: center;
  padding: 64px 40px;
  border-right: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
  transition: all 0.5s var(--ease-out-quart);
  opacity: 0;
  transform: translateY(60px) scale(0.9);
  filter: blur(2px);
  animation: advFadeIn 0.85s var(--ease-spring) forwards;
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

@keyframes advFadeIn {
  to { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

.advantages__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-off-white) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.advantages__card:hover::before { opacity: 1; }

.advantages__card:nth-child(1) { animation-delay: 0ms; }
.advantages__card:nth-child(2) { animation-delay: 120ms; }
.advantages__card:nth-child(3) { animation-delay: 240ms; }
.advantages__card:nth-child(4) { animation-delay: 360ms; }
.advantages__card:nth-child(5) { animation-delay: 480ms; }
.advantages__card:nth-child(6) { animation-delay: 600ms; }

.advantages__card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
  z-index: 1;
}
.advantages__card:active { transform: translateY(-3px) scale(0.975); }

.advantages__icon-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  margin-bottom: 28px;
  color: var(--text-secondary);
  transition: all 0.4s ease;
  font-size: 2.2rem;
  background: var(--color-off-white);
  border-radius: var(--radius-lg);
}

.advantages__card:hover .advantages__icon-wrap {
  background: var(--color-accent-muted);
  color: var(--color-accent);
  transform: scale(1.08);
}

.advantages__title {
  position: relative;
  font-size: 1.08rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.advantages__desc {
  position: relative;
  font-size: 0.88rem;
  color: var(--text-tertiary);
  line-height: 1.85;
  font-weight: 350;
  max-width: 260px;
  margin: 0 auto;
}

@media (max-width: 968px) {
  .advantages__grid { grid-template-columns: repeat(2, 1fr); }
  .advantages__card { padding: 48px 28px; }
}

@media (max-width: 640px) {
  .advantages__grid { grid-template-columns: 1fr; }
  .advantages__card {
    padding: 36px 24px;
    animation-delay: 0ms !important;
    transform: translateY(44px) scale(0.92);
    filter: blur(1.5px);
    animation: advFadeIn 0.65s var(--ease-spring) forwards;
  }
  .advantages__card:nth-child(1) { animation-delay: 0ms !important; }
  .advantages__card:nth-child(2) { animation-delay: 100ms !important; }
  .advantages__card:nth-child(3) { animation-delay: 200ms !important; }
  .advantages__card:nth-child(4) { animation-delay: 300ms !important; }
  .advantages__card:nth-child(5) { animation-delay: 400ms !important; }
  .advantages__card:nth-child(6) { animation-delay: 500ms !important; }
  .advantages__desc { max-width: 300px; }
  .advantages__icon-wrap { width: 52px; height: 52px; font-size: 1.8rem; margin-bottom: 20px; }
  .advantages__card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.05);
  }
}