/* 确保特殊字符正确显示 */
.math-symbols {
    font-family: 'Times New Roman', 'Arial Unicode MS', 'Lucida Sans Unicode', sans-serif;
}

/* 头像容器居中优化 */
.avatar-container {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.avatar-container img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.avatar-container i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 优化移动端横向布局 */
@media (max-width: 640px) {
    footer .grid-cols-1 {
        grid-template-columns: 1fr;
    }
    footer .space-y-3 > div,
    footer .space-y-4 > div {
        margin-bottom: 0.75rem;
    }
}

/* 平板横向和小屏幕电脑优化 */
@media (min-width: 641px) and (max-width: 1024px) {
    footer .grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    footer .sm\:col-span-2 {
        grid-column: span 2 / span 2;
    }
}

/* 优化超小屏幕显示 */
@media (max-width: 360px) {
    footer {
        font-size: 0.75rem;
    }
    footer .text-xs {
        font-size: 0.65rem;
    }
    footer .text-sm {
        font-size: 0.7rem;
    }
    footer .p-1\.5 {
        padding: 0.3rem;
    }
}

/* 横向移动设备优化 */
@media (max-height: 480px) and (orientation: landscape) {
    footer {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    footer .text-xs {
        font-size: 0.6rem;
    }
    footer .text-sm {
        font-size: 0.65rem;
    }
    footer .sm\:py-1 {
        padding-top: 0.2rem;
        padding-bottom: 0.2rem;
    }
    footer .mt-6 {
        margin-top: 0.5rem;
    }
    footer .pt-4 {
        padding-top: 0.2rem;
    }
}