/* ============================================
   导航条专业优化样式
   注意：此文件应在style.css之后加载以确保优先级
   ============================================ */

/* ============================================
   覆盖原有样式，确保所有导航文字为白色
   使用!important确保优先级最高
   ============================================ */

/* 基础样式覆盖 - 所有导航链接文字为白色 */
.navbar-collapse .main-menu li a,
.navbar-nav.main-menu .nav-link,
.navbar-nav.main-menu .nav-item .nav-link,
.navbar-nav.main-menu li a,
.header .navbar-nav .nav-link {
    color: #ffffff !important;
}

/* 悬停状态 - 保持白色 */
.navbar-collapse .main-menu li a:hover,
.navbar-nav.main-menu .nav-link:hover,
.navbar-nav.main-menu .nav-item .nav-link:hover,
.navbar-nav.main-menu li a:hover,
.header .navbar-nav .nav-link:hover {
    color: #ffffff !important;
}

/* 图标颜色 - 白色 */
.navbar-collapse .main-menu li a i,
.navbar-nav.main-menu .nav-link i,
.navbar-nav.main-menu .nav-item .nav-link i,
.navbar-nav.main-menu li a i,
.header .navbar-nav .nav-link i {
    color: #ffffff !important;
}

/* 文字span - 白色 */
.navbar-collapse .main-menu li a span,
.navbar-nav.main-menu .nav-link span,
.navbar-nav.main-menu .nav-item .nav-link span,
.navbar-nav.main-menu li a span,
.header .navbar-nav .nav-link span {
    color: #ffffff !important;
}

/* 激活状态 - 白色 */
.navbar-collapse .main-menu li a.active,
.navbar-nav.main-menu .nav-link.active,
.navbar-nav.main-menu .nav-item .nav-link.active,
.navbar-nav.main-menu li a.active,
.header .navbar-nav .nav-link.active {
    color: #ffffff !important;
}

/* 所有子元素 - 白色 */
.navbar-collapse .main-menu li a *,
.navbar-nav.main-menu .nav-link *,
.navbar-nav.main-menu .nav-item .nav-link *,
.navbar-nav.main-menu li a *,
.header .navbar-nav .nav-link * {
    color: #ffffff !important;
}

/* 导航条整体优化 */
.navbar-professional {
    padding: 0;
    min-height: 80px;
    align-items: center;
}

/* Logo优化 */
.site-logo {
    display: flex;
    align-items: center;
    padding: 15px 0;
    transition: all 0.3s ease;
    text-decoration: none;
}

.site-logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.logo-img {
    height: 60px;
    width: auto;
    max-width: 200px;
    transition: all 0.3s ease;
}

@media (max-width: 575px) {
    .logo-img {
        height: 35px;
    }
}

/* 导航菜单项优化 */
.navbar-nav.main-menu {
    display: flex;
    align-items: center;
    gap: 5px;
}

.navbar-nav.main-menu .nav-item {
    position: relative;
    margin: 0 3px;
}

/* 覆盖原有样式，确保文字颜色为白色 */
.navbar-collapse .main-menu li a,
.navbar-nav.main-menu .nav-link,
.navbar-nav.main-menu .nav-item .nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px !important;
    color: #ffffff !important;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
    white-space: nowrap;
}

/* 确保所有子元素也是白色 */
.navbar-collapse .main-menu li a *,
.navbar-nav.main-menu .nav-link *,
.navbar-nav.main-menu .nav-item .nav-link * {
    color: #ffffff !important;
}

.navbar-nav.main-menu .nav-link i,
.navbar-collapse .main-menu li a i {
    font-size: 16px;
    color: #ffffff !important;
    opacity: 1;
    transition: all 0.3s ease;
}

.navbar-nav.main-menu .nav-link span,
.navbar-collapse .main-menu li a span {
    position: relative;
    z-index: 1;
    color: #ffffff !important;
}

/* 导航链接悬停效果 */
.navbar-nav.main-menu .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(66, 232, 223, 0.1);
    border-radius: 6px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 0;
}

.navbar-nav.main-menu .nav-link:hover::before {
    opacity: 1;
}

.navbar-nav.main-menu .nav-link:hover {
    color: #ffffff !important;
    background: rgba(66, 232, 223, 0.2);
    transform: translateY(-2px);
}

.navbar-nav.main-menu .nav-link:hover i,
.navbar-collapse .main-menu li a:hover i {
    color: #ffffff !important;
    transform: scale(1.1);
}

.navbar-nav.main-menu .nav-link:hover span,
.navbar-collapse .main-menu li a:hover span {
    color: #ffffff !important;
}

/* 当前页面高亮 */
.navbar-nav.main-menu .nav-link.active {
    color: #ffffff !important;
    background: rgba(66, 232, 223, 0.25);
}

.navbar-nav.main-menu .nav-link.active i,
.navbar-nav.main-menu .nav-link.active span {
    color: #ffffff !important;
}

.navbar-nav.main-menu .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #42e8df;
    border-radius: 2px;
}

/* 按钮区域优化 */
.header-action {
    display: flex;
    align-items: center;
    margin-left: 20px;
    gap: 10px;
}

.btn-header {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-header i {
    font-size: 16px;
}

/* 登录按钮样式 */
.btn-header.btn-login {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff !important;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-header.btn-login i,
.btn-header.btn-login span {
    color: #ffffff !important;
}

.btn-header.btn-login:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    color: #ffffff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

.btn-header.btn-login:hover i,
.btn-header.btn-login:hover span {
    color: #ffffff !important;
}

/* 主要按钮样式 */
.btn-header.btn-primary {
    background: linear-gradient(135deg, #42e8df, #1a9b8f);
    color: #ffffff !important;
    border: none;
    box-shadow: 0 2px 8px rgba(66, 232, 223, 0.3);
}

.btn-header.btn-primary i,
.btn-header.btn-primary span {
    color: #ffffff !important;
}

.btn-header.btn-primary:hover {
    background: linear-gradient(135deg, #1a9b8f, #42e8df);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(66, 232, 223, 0.5);
    color: #ffffff !important;
}

.btn-header.btn-primary:hover i,
.btn-header.btn-primary:hover span {
    color: #ffffff !important;
}

.btn-header.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-header.btn-primary:hover::before {
    left: 100%;
}

/* 移动端菜单按钮优化 */
.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 6px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.navbar-toggler:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.navbar-toggler-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.navbar-toggler-icon i {
    color: #fff;
    font-size: 20px;
}

/* 移动端菜单优化 */
@media (max-width: 991px) {
    .navbar-collapse {
        margin-top: 15px;
        padding: 20px 0;
        background: rgba(20, 42, 133, 0.95);
        border-radius: 8px;
        backdrop-filter: blur(10px);
    }
    
    .navbar-nav.main-menu {
        flex-direction: column;
        gap: 0;
    }
    
    .navbar-nav.main-menu .nav-item {
        width: 100%;
        margin: 0;
    }
    
    .navbar-nav.main-menu .nav-link {
        padding: 15px 20px !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 0;
        width: 100%;
    }
    
    .navbar-nav.main-menu .nav-item:last-child .nav-link {
        border-bottom: none;
    }
    
    .header-action {
        margin-left: 0;
        margin-top: 15px;
        padding-top: 15px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
        justify-content: center;
    }
    
    .btn-header {
        width: 100%;
        justify-content: center;
    }
}

/* 响应式优化 */
@media (max-width: 1199px) {
    .navbar-nav.main-menu .nav-link {
        padding: 10px 15px !important;
        font-size: 14px;
    }
    
    .btn-header {
        padding: 8px 20px;
        font-size: 14px;
    }
}

@media (max-width: 767px) {
    .navbar-professional {
        min-height: 70px;
    }
    
    .logo-img {
        height: 40px;
    }
    
    .navbar-nav.main-menu .nav-link {
        font-size: 14px;
    }
    
    .navbar-nav.main-menu .nav-link i {
        font-size: 14px;
    }
}

/* 导航条固定时的样式 */
.header-section.menu-fixed .header,
.header.active {
    background-color: rgba(20, 42, 133, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* 导航条动画效果 */
@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header.active {
    animation: slideDown 0.5s ease-out;
}

/* 导航条底部装饰线 */
.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #42e8df, transparent);
    opacity: 0.5;
}