/* 导航栏样式 - 重新设计 */
.navbar-brands.navbar-abouts {
    background: transparent !important;
    border: none;
    padding: 20px 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    box-shadow: none;
    transition: all 0.4s ease;
}

.navbar-brands.navbar-abouts .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-header {
    display: flex;
    align-items: center;
    margin: 0;
}

.navbar-toggle {
    border-color: #fff;
    background-color: rgba(255, 255, 255, 0.2);
    margin-top: 0;
    margin-left: 10px;
    transition: all 0.3s ease;
}

.navbar-toggle:hover {
    background-color: rgba(255, 255, 255, 0.4);
    transform: rotate(90deg);
}

.navbar-toggle .icon-bar {
    background-color: #fff;
}

.logo {
    width: 150px;
    height: auto;
    filter: none;
}

.logo:hover {
    transform: none;
    filter: none;
}

.navbar-nav.navbar-right {
    font-size: 16px;
    margin: 0;
}

.navbar-nav.navbar-right > li > a {
    color: #fff !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    padding: 15px 25px;
    position: relative;
    font-weight: 500;
    letter-spacing: 0.5px;
    overflow: hidden;
    border-radius: 4px;
}

.navbar-nav.navbar-right > li > a:hover,
.navbar-nav.navbar-right > li.active > a {
    color: #fff !important;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.05) 100%);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.navbar-nav.navbar-right > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #fff, transparent);
    transition: width 0.4s ease, left 0.4s ease;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

.navbar-nav.navbar-right > li > a:hover::after,
.navbar-nav.navbar-right > li.active > a::after {
    width: 80%;
    left: 10%;
}

/* 菜单项图标装饰效果 */
.navbar-nav.navbar-right > li > a::before {
    content: '✦';
    position: absolute;
    top: 50%;
    left: 10px;
    transform: translateY(-50%) scale(0);
    opacity: 0;
    transition: all 0.3s ease;
    color: #ffcc00;
    font-size: 12px;
}

.navbar-nav.navbar-right > li > a:hover::before,
.navbar-nav.navbar-right > li.active > a::before {
    transform: translateY(-50%) scale(1);
    opacity: 1;
}

/* 点击波纹效果 */
.navbar-nav.navbar-right > li > a .ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: rippleEffect 0.6s linear;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* 导航栏固定时的样式 */
.navbar-fixed {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(180deg, rgba(38, 38, 38, 0.98) 0%, rgba(38, 38, 38, 0.9) 100%) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    padding: 10px 0;
    z-index: 9999;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.navbar-fixed .logo {
    width: 125px;
    height: auto;
}

.navbar-fixed .navbar-nav.navbar-right > li > a {
    padding: 12px 20px;
    font-size: 14px;
}

.navbar-fixed .navbar-nav.navbar-right > li > a:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
}

/* 移动端菜单优化 */
@media (max-width: 767px) {
    .navbar-collapse {
        background-color: rgba(38, 38, 38, 0.98);
        border-top: none;
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
        max-height: 400px;
        overflow-y: auto;
        transition: all 0.3s ease;
    }
    .navbar-nav.navbar-right {
        margin: 0;
    }
    
    .navbar-nav.navbar-right > li > a {
        padding: 12px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar-nav.navbar-right > li > a:hover {
        background: linear-gradient(90deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
        padding-left: 30px;
    }
}

/* 新增：导航栏加载动画 */
@keyframes navFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-brands.navbar-abouts {
    animation: navFadeIn 0.6s ease-out;
}

/* 新增：菜单项悬停光晕效果 */
.navbar-nav.navbar-right > li > a .nav-text {
    position: relative;
    z-index: 1;
}

.navbar-nav.navbar-right > li > a:hover .nav-text {
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.4);
}