/* ========== 幻灯片文字容器覆盖 ========== */

.slide-content {
  left: 0;
  transform: translateY(-50%);
  text-align: left;
  max-width: 1440px;
  width: 100%;
  padding-left: max(20px, calc((100% - 1440px) / 2 + 20px));
  padding-right: 20px;
}

@media (max-width: 768px) {
  .slide-content {
    display: block;
    left: 50%;
    transform: translate(-50%, -50%);
    padding-left: 20px;
    padding-right: 20px;
    text-align: center;
  }
  .slide-title,
  .slide-subtitle {
    text-align: center;
  }
  .slide-desc {
    display: none;
  }
}

/* ========== 幻灯片文字样式 ========== */

.slide-title {
  font-size: 48px;
  color: #1a3c6e;
  font-weight: 700;
  text-align: left;
  margin-bottom: 12px;
}

.slide-subtitle {
  font-size: 22px;
  color: #64748b;
  font-weight: 400;
  text-align: left;
  margin-bottom: 10px;
}

.slide-desc {
  font-size: 14px;
  color: #3b82f6;
  font-weight: 300;
  text-align: left;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ========== 入场动画 ========== */

.slide-title,
.slide-subtitle,
.slide-desc {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide.active .slide-title {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}

.slide.active .slide-subtitle {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.6s;
}

.slide.active .slide-desc {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.9s;
}

/* ========== 响应式 ========== */

@media (max-width: 768px) {
  .slide-title {
    font-size: 32px;
  }
  .slide-subtitle {
    font-size: 16px;
  }
  .slide-desc {
    font-size: 12px;
  }
}

/* ========== 暗色模式 ========== */

.dark-mode .slide-title {
  color: #e2e8f0;
}

.dark-mode .slide-subtitle {
  color: #94a3b8;
}

.dark-mode .slide-desc {
  color: #60a5fa;
}