/* 导航栏 */
.navbar {
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px var(--navbar-shadow);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    position: relative;
    min-height: 60px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    background: transparent;
    border: none;
    outline: none;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--accent-color);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
}

.nav-links li {
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* 确保桌面端导航栏正确显示 */
@media (min-width: 769px) {
    .nav-links {
        display: flex !important;
        position: static;
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        box-shadow: none;
        transform: none;
        flex-direction: row;
        justify-content: flex-end;
        align-items: center;
        gap: 2rem;
    }
    
    .nav-links::before {
        display: none;
    }
    
    .nav-links li {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .nav-links a {
        font-size: 1rem;
        padding: 0.5rem 1rem;
        background: transparent;
        color: var(--text-secondary);
        font-weight: 500;
        border: none;
        min-width: auto;
        white-space: nowrap;
    }
    
    .nav-links a:hover {
        background: rgba(var(--accent-color-rgb), 0.1);
        color: var(--accent-color);
        transform: none;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 移动端导航栏样式 */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* 移动端导航栏样式 */
    .nav-links {
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        right: 0 !important;
        bottom: auto !important;
        background: var(--navbar-bg) !important;
        backdrop-filter: blur(20px) !important;
        -webkit-backdrop-filter: blur(20px) !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        align-items: center !important;
        gap: 1rem !important;
        transform: translateY(-100%) !important;
        transition: all 0.3s ease !important;
        z-index: 1000 !important;
        box-shadow: 0 0 50px var(--shadow-color) !important;
        display: flex !important;
        border: 1px solid var(--border-color) !important;
        max-height: 0 !important;
        overflow: hidden !important;
        margin: 0 !important;
        padding: 0 !important;
        position: absolute !important;
        border-radius: 0 0 8px 8px !important;
    }

    .nav-links.active {
        transform: translateY(0) !important;
        max-height: 300px !important;
        padding: 1rem 0 !important;
        margin: 0 !important;
        border-radius: 0 0 8px 8px !important;
        box-shadow: 0 4px 20px var(--shadow-color) !important;
    }

    .nav-links li {
        opacity: 0 !important;
        transform: translateY(20px) !important;
        transition: all 0.3s ease !important;
        margin: 0.25rem 0 !important;
    }

    .nav-links.active li {
        opacity: 1 !important;
        transform: translateY(0) !important;
    }

    .nav-links li:nth-child(1) { transition-delay: 0.1s; }
    .nav-links li:nth-child(2) { transition-delay: 0.2s; }
    .nav-links li:nth-child(3) { transition-delay: 0.3s; }
    .nav-links li:nth-child(4) { transition-delay: 0.4s; }
    
    /* 确保移动端菜单有正确的背景和阴影 */
    .nav-links::before {
        content: '' !important;
        position: absolute !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        background: var(--navbar-bg) !important;
        z-index: -1 !important;
        border-radius: 0 0 8px 8px !important;
        backdrop-filter: blur(20px) !important;
        -webkit-backdrop-filter: blur(20px) !important;
        margin: 0 !important;
    }

    .nav-links a {
        font-size: 1rem !important;
        padding: 0.75rem 1.5rem !important;
        border-radius: 6px !important;
        background: rgba(var(--accent-color-rgb), 0.1) !important;
        color: var(--accent-color) !important;
        font-weight: 600 !important;
        display: block !important;
        text-align: center !important;
        min-width: 180px !important;
        border: 1px solid rgba(var(--accent-color-rgb), 0.2) !important;
        transition: all 0.3s ease !important;
        box-shadow: 0 2px 10px rgba(var(--accent-color-rgb), 0.1) !important;
        position: relative !important;
        z-index: 1 !important;
    }

    .nav-links a:hover {
        background: rgba(var(--accent-color-rgb), 0.2) !important;
        transform: translateY(-1px) !important;
        box-shadow: 0 3px 15px rgba(var(--accent-color-rgb), 0.2) !important;
        border-color: rgba(var(--accent-color-rgb), 0.4) !important;
    }
    
    /* 移动端菜单容器样式 */
    .nav-links.active {
        border-radius: 0 0 8px 8px !important;
        margin: 0 !important;
        box-shadow: 0 4px 20px var(--shadow-color) !important;
    }
}