/* partners.css - 合作伙伴轮播样式 (Leverstyle 风格) */

#partners {
  background-color: var(--color-bg-alt);
  overflow: hidden;
  padding: 80px 0;
}

.partners-carousel {
  overflow: hidden;
  position: relative;
  width: 100%;
  margin-top: 50px;
}

/* 两侧渐变透明效果 */
.partners-carousel::before,
.partners-carousel::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.partners-carousel::before {
  left: 0;
  background: linear-gradient(to right, var(--color-bg-alt), transparent);
}

.partners-carousel::after {
  right: 0;
  background: linear-gradient(to left, var(--color-bg-alt), transparent);
}

.partners-carousel:hover .partners-track {
  animation-play-state: paused;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 80px;
  animation: partnersScroll 20s linear infinite;
  width: max-content;
}

@keyframes partnersScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-logo {
  flex-shrink: 0;
  width: 280px;
  height: 85px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.4;
  transition: filter var(--transition-normal), opacity var(--transition-normal);
}

.partner-logo img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

@media (max-width: 1023px) {
  .partners-track { gap: 50px; }
  .partner-logo { width: 200px; height: 70px; }
}

@media (max-width: 767px) {
  #partners { padding: 60px 0; }
  .partners-track { gap: 40px; animation-duration: 20s; }
  .partner-logo { width: 160px; height: 55px; }
  .partners-carousel { margin-top: 30px; }
  .partners-carousel::before,
  .partners-carousel::after { width: 60px; }
}