/* 导航菜单样式 */
.nav-menu {
    display: flex;
    justify-content: center;
    list-style-type: none;
    padding: 10px;
    background-color: transparent;
    border-radius: 20px;
    margin: 20px auto;
    max-width: 600px;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 10px;
}

.nav-menu a:hover {
    opacity: 0.7;
}

/* 当前页面的按钮不模糊 */
.nav-menu a.active {
    color: #333;
}

/* 其他按钮模糊效果 */
.nav-menu a:not(.active) {
    color: rgba(51, 51, 51, 0.5);
    filter: blur(1px);
    transition: all 0.3s ease;
}

.nav-menu a:not(.active):hover {
    color: #333;
    filter: blur(0);
}