.unified-navbar {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
    padding: 0 24px;
    position: relative;
    z-index: var(--z-fixed);
    transition: var(--transition-smooth);
}

.unified-navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-medium);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px 0;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.navbar-brand {
    font-family: var(--font-calligraphy);
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--transition-smooth);
    flex-shrink: 0;
    letter-spacing: 0.05em;
}

.navbar-brand:hover {
    transform: scale(1.02);
}

.navbar-toggle {
    display: none;
    background: rgba(78, 205, 196, 0.1);
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 10px;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    align-items: center;
    justify-content: center;
}

.navbar-toggle:hover {
    background: rgba(78, 205, 196, 0.2);
    transform: scale(1.1);
}

.navbar-toggle i {
    pointer-events: none; 
}

.navbar-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.navbar-collapse-toggle {
    display: none;
    background: rgba(78, 205, 196, 0.1);
    border: 1px solid rgba(78, 205, 196, 0.3);
    font-size: 1rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px 14px;
    border-radius: var(--radius-xl);
    transition: var(--transition-smooth);
    align-items: center;
    justify-content: center;
    margin-left: auto;
    gap: 6px;
    font-family: var(--font-fangsong);
    font-weight: 600;
    font-size: 0.9rem;
}

.navbar-collapse-toggle::after {
    content: '折叠';
    transition: var(--transition-smooth);
}

.navbar-collapse-toggle.collapsed::after {
    content: '展开';
}

.navbar-collapse-toggle:hover {
    background: rgba(78, 205, 196, 0.25);
    border-color: rgba(78, 205, 196, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.2);
}

.navbar-collapse-toggle i {
    pointer-events: none;
    transition: transform 0.3s ease;
}

.navbar-collapse-toggle.collapsed i {
    transform: rotate(180deg);
}

.navbar-item {
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-smooth);
    font-size: 0.95rem;
    border: 1px solid transparent;
    font-family: var(--font-fangsong);
    letter-spacing: 0.02em;
}

.navbar-item:hover {
    background: rgba(78, 205, 196, 0.25);
    color: var(--text-dark);
    transform: translateY(-2px);
    border-color: var(--border-color);
}

.navbar-item.active {
    background: var(--gradient-soft);
    color: var(--text-primary);
    border-color: transparent;
}

.navbar-item i {
    font-size: 1rem;
}

@media (min-width: 769px) {
    .unified-navbar .navbar-nav {
        max-height: 500px;
        opacity: 1;
        transition: max-height 0.3s ease-out, opacity 0.3s ease-out, padding 0.3s ease-out, margin 0.3s ease-out;
        overflow: hidden;
    }
    
    .unified-navbar .navbar-nav.collapsed {
        max-height: 0;
        opacity: 0;
        padding: 0;
        margin: 0;
    }
    
    .unified-navbar .navbar-nav.expanded {
        max-height: 500px;
        opacity: 1;
    }
}

.navbar-user {
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-smooth);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 1.1rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.user-avatar:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.user-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    font-family: var(--font-fangsong);
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-fangsong);
}

.navbar-actions {
    display: flex;
    gap: 12px;
    transition: var(--transition-smooth);
}

.navbar-btn {
    padding: 10px 20px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    font-family: var(--font-fangsong);
}

.navbar-btn:hover {
    background: var(--gradient-soft);
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.navbar-btn-primary {
    background: var(--gradient-main);
    color: var(--text-primary);
    border-color: transparent;
}

.navbar-btn-primary:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: var(--shadow-medium);
}

@media (max-width: 1024px) {
    .navbar-container {
        gap: 12px;
    }
    
    .navbar-item {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .navbar-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .user-avatar {
        width: 38px;
        height: 38px;
    }
}

@media (max-width: 768px) {
    .unified-navbar {
        padding: 0 20px;
    }
    
    .navbar-container {
        padding: 12px 0;
    }
    
    .navbar-brand {
        font-size: 1.5rem;
    }
    
    
    .navbar-toggle {
        display: flex;
        order: 2;
    }
    
    
    .navbar-collapse-toggle {
        display: none !important;
    }
    
    
    .unified-navbar .navbar-nav {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 8px;
        padding: 16px 0;
        border-top: 1px solid var(--border-color);
        margin-top: 12px;
        order: 3;
    }
    
    .unified-navbar .navbar-nav.active {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }
    
    .navbar-item {
        width: 100%;
        justify-content: center;
        padding: 12px 20px;
        position: relative;
    }
    
    .navbar-item::after {
        display: none; 
    }
    
    .navbar-user {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        padding: 12px 0;
        border-top: 1px solid var(--border-color);
        margin-top: 8px;
    }
    
    .user-info {
        align-items: center;
    }
    
    .navbar-actions {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        padding: 12px 0;
        border-top: 1px solid var(--border-color);
        margin-top: 8px;
    }
    
    .navbar-btn {
        flex: 1;
        min-width: 120px;
        justify-content: center;
        display: flex;
    }
}

@media (max-width: 480px) {
    .unified-navbar {
        padding: 0 16px;
    }
    
    .navbar-container {
        gap: 10px;
        padding: 10px 0;
    }
    
    .navbar-brand {
        font-size: 1.4rem;
    }
    
    .navbar-toggle {
        font-size: 1.3rem;
    }
    
    .navbar-item {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    .user-avatar {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .user-name {
        font-size: 0.9rem;
    }
    
    .user-role {
        font-size: 0.75rem;
    }
    
    .navbar-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}

@media (min-width: 769px) {
    .unified-navbar {
        position: sticky;
        top: 0;
    }
    
    
    .navbar-collapse-toggle {
        display: flex;
    }
}

@keyframes navSlideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.unified-navbar {
    animation: navSlideDown 0.4s ease-out;
}

.navbar-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-main);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-item:hover::after {
    width: 80%;
}