/* 悬浮导航样式 */
.floating-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    padding: 15px 0;
}

.floating-nav.nav-scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 10px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
    font-family: 'Noto Serif SC', serif;
}

.nav-menu {
    display: flex;
    gap: 5px;
}

.nav-item {
    padding: 8px 16px;
    border-radius: 20px;
    color: #666;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
    font-family: 'Noto Serif SC', serif;
}

.nav-item:hover,
.nav-item.active {
    background: linear-gradient(135deg, #ff6b6b 0%, #ff8e8e 100%);
    color: #fff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: #333;
    transition: all 0.3s;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-150%);
        transition: transform 0.3s;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }
    
    .floating-nav.nav-open .nav-menu {
        transform: translateY(0);
    }
    
    .nav-item {
        padding: 12px 20px;
    }
}