/* 自定义图标样式 */
.icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.icon-sm {
    width: 1rem;
    height: 1rem;
}

.icon-md {
    width: 1.5rem;
    height: 1.5rem;
}

.icon-lg {
    width: 2rem;
    height: 2rem;
}

/* 社交媒体图标 */
.social-icon {
    width: 1.5rem;
    height: 1.5rem;
    fill: currentColor;
}

/* 动画图标 */
.animate-icon {
    transition: all 0.3s ease;
}

.animate-icon:hover {
    transform: scale(1.1);
}