/* 深色模式 */
body {
    background: #1a1a1a;
    color: #ffffff;
    transition: background 0.3s ease;
}

.menu-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    grid-auto-rows: minmax(180px, auto);
    gap: 20px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.menu-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    border-radius: 8px;
    background: #2d2d2d;
    transition: all 0.3s ease;
    text-decoration: none;
    color: #ffffff;
    border: 1px solid rgba(255,255,255,0.1);
}

.menu-item:hover {
    transform: translateY(-3px);
    background: #373737;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.menu-item img {
    --brand_blue: #fff;
    width: 150px;
    height: 100px;
    object-fit: contain;
    margin-bottom: 15px;
    color: #fff;
}

.site-name {
    display: none;
}

/* 响应式断点 */
@media (max-width: 1024px) {
    .menu-container {
        gap: 15px;
        padding: 15px;
    }
}

@media (max-width: 768px) {
    .menu-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    .menu-item {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .menu-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding: 10px;
    }
    .menu-item img {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 360px) {
    .menu-container {
        grid-template-columns: 1fr;
    }
}
/* 夜间模式切换按钮 */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #3d3d3d;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}


/* 下载按钮样式 */
.download-btn {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background: #2196F3;
  color: white;
  padding: 12px 20px;
  border-radius: 25px;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(33,150,243,0.3);
}

.download-btn:hover {
  background: #1976D2;
  transform: translateY(-2px);
}

.download-btn svg {
  width: 20px;
  height: 20px;
}