/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s;
}

.navbar .container {
    max-width: 100%;
    padding-left: 20px;
    padding-right: 20px;
}

.navbar-brand {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-logo {
    width: 350px;
    height: 90px;
    border-radius: 8px;
    object-fit: cover;
}

.nav-link {
    color: #555 !important;
    font-weight: 500;
    margin: 0 10px;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #667eea !important;
}

.nav-link.active {
    color: #667eea !important;
    font-weight: 600;
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar {
        padding: 10px 0;
    }

    .navbar .container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .navbar-brand {
        font-size: 20px;
    }

    .navbar-logo {
        width: 150px;
        height: 40px;
    }

    .navbar-collapse {
        background: #fff;
        padding: 15px;
        margin-top: 10px;
        border-radius: 10px;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    }

    .nav-link {
        padding: 10px 0 !important;
        margin: 0 !important;
    }
}