.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-overlay);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: var(--z-index-navbar);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition-slow);
}

.navbar.scrolled {
    box-shadow: var(--shadow-main);
    padding: var(--spacing-xs) 0;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
    transition: transform var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    border-radius: var(--radius-small);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.nav-link:hover {
    background-color: rgba(var(--color-accent-rgb), 0.1);
    color: var(--color-accent-light);
}

.nav-link.active {
    background-color: var(--color-accent);
    color: white;
    box-shadow: var(--shadow-accent);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-xs);
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-normal);
}

.mobile-menu-btn:hover {
    background-color: rgba(var(--color-accent-rgb), 0.1);
}

/* 右侧1/3宽度移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 33.333%;
    height: 100vh;
    background-color: var(--color-bg-overlay);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0;
    transform: translateX(100%);
    opacity: 1;
    visibility: visible;
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    border: none;
    border-radius: 0 var(--radius-large) var(--radius-large) 0;
    z-index: calc(var(--z-index-navbar) + 1);
    overflow: hidden;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 100px 30px 40px 30px;
}

/* 细横线分隔的菜单项 */
.mobile-nav-link {
    display: flex;
    align-items: center;
    padding: 18px 15px;
    background: none;
    border-radius: 0;
    transition: all 0.3s ease;
    position: relative;
    border-bottom: 1px solid rgba(159, 162, 166, 0.15);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
}

.mobile-nav-link:last-child {
    border-bottom: none;
}

.mobile-nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background-color: var(--color-accent);
    border-radius: 2px;
    transition: height 0.3s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    background-color: rgba(248, 204, 216, 0.1);
    padding-left: 25px;
    color: var(--color-accent-dark);
}

.mobile-nav-link:hover::before,
.mobile-nav-link.active::before {
    height: 60%;
}

.mobile-nav-link i {
    margin-right: 15px;
    width: 20px;
    text-align: center;
    color: var(--color-accent);
    font-size: 1rem;
}

.mobile-menu-close {
    position: absolute;
    top: 25px;
    right: 25px;
    background: rgba(248, 204, 216, 0.2);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-dark);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
}

.mobile-menu-close:hover {
    background: rgba(248, 204, 216, 0.3);
    transform: rotate(90deg);
}

.nav-indicator {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--color-accent);
    border-radius: 2px;
    transition: width var(--transition-normal), left var(--transition-normal);
}

.nav-link.active .nav-indicator {
    width: 70%;
}

@media (max-width: 992px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .navbar-container {
        height: 56px;
    }
    
    .mobile-menu {
        top: 56px;
    }
}

@media (max-width: 768px) {
    .mobile-menu {
        width: 50%;
    }
}

@media (max-width: 576px) {
    .mobile-menu {
        width: 70%;
    }
    
    .logo-text {
        font-size: 1.5rem;
    }
    
    .logo-icon {
        font-size: 1.8rem;
    }
}