/* 外层大容器*/
.glass-btn-group {
  display: flex;
  gap: 12px;
  width: 100%;
}

/* 独立的毛玻璃按钮 */
.glass-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0;
  border-radius: 1rem;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    inset 1px 1px 4px rgba(255, 255, 255, 0.15),
    inset -1px -1px 6px rgba(0, 0, 0, 0.3),
    0 4px 12px rgba(0, 0, 0, 0.15);
  transition: 
    background 0.3s ease, 
    transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), 
    box-shadow 0.3s ease;
}

/* 按钮内部的 SVG 图标 */
.glass-btn svg {
  width: 20px;
  height: 20px;
  stroke: #999;
  stroke-width: 1.5;
  fill: none;
  transition: stroke 0.3s ease, transform 0.3s ease;
}

/* --- 交互动效：鼠标悬停（Hover） --- */
.glass-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  box-shadow:
    inset 1px 1px 4px rgba(255, 255, 255, 0.25),
    inset -1px -1px 6px rgba(0, 0, 0, 0.2),
    0 12px 24px rgba(0, 0, 0, 0.25);
}

.glass-btn:hover svg {
  stroke: #ffffff;
  transform: scale(1.1);
}

/* --- 交互动效：点击瞬间（Active） --- */
.glass-btn:active {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px) scale(0.96);
  box-shadow:
    inset 1px 1px 2px rgba(255, 255, 255, 0.1),
    inset -1px -1px 4px rgba(0, 0, 0, 0.4),
    0 2px 6px rgba(0, 0, 0, 0.2);
}

.glass-custom-img {
  width: auto;
  height: auto;
  max-width: 28px;
  max-height: 28px;
  object-fit: contain; 
  opacity: 0.85;
  transition: opacity 0.3s ease, filter 0.3s ease, transform 0.3s ease;
}

/* 悬停时的缩放控制 */
.glass-btn:hover .glass-custom-img {
  opacity: 1;
  transform: scale(1.1);
}

/* 默认状态*/
.mobile-btn-group {
    display: none;
}

/* 响应式布局 */
@media (max-width: 1020px) {
    .sidebar .glass-btn-group {
        display: none !important;
    }

    .mobile-btn-group {
        display: block !important;
        margin-bottom: 20px;
        padding: 0 15px;
    }

    .mobile-btn-group .glass-btn-group {
        display: flex;
        flex-wrap: nowrap; /* 强制横排，不换行 */
        gap: 8px;          /* 减小间距 */
        justify-content: center;
    }

    .mobile-btn-group .glass-btn {
        flex: 0 0 auto;
        width: 58px;
        height: 58px;
        padding: 0;
        border-radius: 0.8rem;
    }

    /* 缩小内部图标的尺寸 */
    .mobile-btn-group .glass-custom-img {
        max-width: 22px;   
        max-height: 22px;
    }
    
    /* 缩小内部 SVG 的尺寸 */
    .mobile-btn-group .glass-btn svg {
        width: 18px;
        height: 18px;
    }
}