/* 自定义导航栏样式 - 沐光物流 */

/* 导航栏高度变量 - 可以在这里统一调整 */
:root {
    --navbar-height: 5rem; /* 默认 64px，可以修改为 3rem (48px)、5rem (80px) 等 */
}

/* 导航栏基础样式 */
.custom-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: transparent !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(14, 165, 233, 0.2);
    transition: all 0.3s ease;
}

.custom-navbar.scrolled {
    background: transparent !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 导航栏容器 */
.navbar-container {
    margin: 0 auto;
    padding: 0 0.75rem;
    width: 100%;
}

@media (min-width: 640px) {
    .navbar-container {
        padding: 0 1rem;
    }
}

@media (min-width: 1024px) {
    .navbar-container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1400px) {
    .navbar-container {
        padding: 0 2rem;
    }
}

/* 导航栏内容 */
.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
    gap: 0.5rem;
    min-width: 0;
    width: 100%;
}

@media (min-width: 1024px) {
    .navbar-content {
        gap: 1rem;
    }
}

@media (min-width: 1400px) {
    .navbar-content {
        gap: 2rem;
    }
}

/* Logo区域 */
.navbar-logo {
    flex-shrink: 0;
    min-width: 0;
}

@media (min-width: 1024px) {
    .navbar-logo {
        flex-shrink: 0;
    }
}

/* 桌面导航菜单 */
.navbar-nav {
    display: none;
    align-items: center;
    gap: 1.5rem;
    flex: 1;
    justify-content: center;
    flex-wrap: nowrap;
    min-width: 0;
    overflow: visible;
    max-width: 100%;
}

@media (min-width: 1024px) {
    .navbar-nav {
        display: flex;
    }
}

/* 中等屏幕尺寸优化（适应英文长文本） */
@media (min-width: 1024px) and (max-width: 1400px) {
    .navbar-nav {
        gap: 0.75rem;
    }
    
    .navbar-nav-link,
    .navbar-dropdown-button {
        font-size: 0.875rem;
        padding: 0.5rem 0.125rem;
    }
}

/* 小桌面屏幕进一步优化 */
@media (min-width: 1024px) and (max-width: 1280px) {
    .navbar-nav {
        gap: 0.5rem;
    }
    
    .navbar-nav-link,
    .navbar-dropdown-button {
        font-size: 0.85rem;
        padding: 0.5rem 0.1rem;
    }
}

/* 大屏幕优化 */
@media (min-width: 1400px) {
    .navbar-nav {
        gap: 1.5rem;
    }
}

/* CTA按钮 */
.navbar-cta {
    display: none;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

@media (min-width: 1024px) {
    .navbar-cta {
        display: flex;
    }
}

/* 中等屏幕时CTA按钮文字可能换行 */
@media (min-width: 1024px) and (max-width: 1400px) {
    .navbar-cta-button {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
        white-space: nowrap;
    }
}

.navbar-logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.navbar-logo-img {
    height: calc(var(--navbar-height) + 0.5rem); /* Logo 比导航栏高 0.5rem */
    width: auto;
    transition: transform 0.3s ease;
}

.navbar-logo-link:hover .navbar-logo-img {
    transform: scale(1.1);
}

.navbar-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    transition: color 0.3s ease;
}

.navbar-logo-link:hover .navbar-logo-text {
    color: #38bdf8;
}


.navbar-nav-link {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0.25rem;
    white-space: nowrap;
    flex-shrink: 1;
    font-size: 1rem;
    min-width: fit-content;
}

/* 移动端导航链接优化 */
@media (max-width: 1023px) {
    .navbar-nav-link {
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
}

.navbar-nav-link:hover {
    color: #38bdf8;
}

.navbar-nav-link.active {
    color: #ffffff;
}

/* 导航链接下划线效果 */
.navbar-nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #38bdf8, #facc15);
    transition: width 0.3s ease;
}

.navbar-nav-link:hover::after,
.navbar-nav-link.active::after {
    width: 100%;
}

/* 下拉菜单 */
.navbar-dropdown {
    position: relative;
    flex-shrink: 1;
    min-width: fit-content;
}

.navbar-dropdown-button {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem 0.25rem;
    white-space: nowrap;
    flex-shrink: 1;
    font-size: 1rem;
    min-width: fit-content;
}

/* 移动端下拉按钮优化 */
@media (max-width: 1023px) {
    .navbar-dropdown-button {
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
}

.navbar-dropdown-button:hover {
    color: #38bdf8;
}

.navbar-dropdown-icon {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.navbar-dropdown:hover .navbar-dropdown-icon {
    transform: rotate(180deg);
}

.navbar-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 0.5rem;
    min-width: 12rem;
    max-width: 16rem;
    width: max-content;
    background: #1e293b;
    border-radius: 0.5rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    border: 1px solid rgba(14, 165, 233, 0.2);
    z-index: 10;
}

.navbar-dropdown:hover .navbar-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.navbar-dropdown-item {
    display: block;
    padding: 0.5rem 1rem;
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 0.25rem;
    margin: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.navbar-dropdown-item:hover {
    color: #38bdf8;
    background: #334155;
}

.navbar-dropdown-item.active {
    color: #38bdf8;
    background: rgba(14, 165, 233, 0.15);
    font-weight: 600;
    border-left: 3px solid #38bdf8;
}


.navbar-cta-button {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #ffffff;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    transform: scale(1);
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.3);
}

.navbar-cta-button:hover {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    transform: scale(1.05);
    box-shadow: 0 6px 20px 0 rgba(14, 165, 233, 0.4);
}

/* 移动端菜单按钮 */
.navbar-mobile-button {
    display: block;
    color: #ffffff;
    background: none;
    border: none;
    cursor: pointer;
    transition: color 0.3s ease;
    padding: 0.5rem;
}

@media (min-width: 1024px) {
    .navbar-mobile-button {
        display: none;
    }
}

.navbar-mobile-button:hover {
    color: #38bdf8;
}

.navbar-mobile-icon {
    font-size: 1.25rem;
}

/* 移动端菜单 */
.navbar-mobile-menu {
    display: none;
    background: #1e293b;
    border-top: 1px solid rgba(14, 165, 233, 0.2);
}

.navbar-mobile-menu.active {
    display: block;
}

.navbar-mobile-content {
    padding: 0.5rem 0.5rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.navbar-mobile-link {
    display: block;
    padding: 0.75rem 0.75rem;
    color: #cbd5e1;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
}

.navbar-mobile-link:hover {
    color: #38bdf8;
    background: rgba(51, 65, 85, 0.5);
}

.navbar-mobile-link.active {
    color: #ffffff;
}

.navbar-mobile-cta {
    display: block;
    padding: 0.75rem;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #ffffff;
    border-radius: 0.5rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    margin-top: 1rem;
    transition: all 0.3s ease;
}

.navbar-mobile-cta:hover {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    transform: scale(1.02);
}

/* 滚动效果 */
.navbar-scroll-effect {
    transition: all 0.3s ease;
}

/* 动画效果 */
@keyframes navbarSlideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.navbar-animate {
    animation: navbarSlideDown 0.5s ease-out;
}

/* 响应式调整 - 已合并到上面的媒体查询中 */

@media (max-width: 1023px) {
    .navbar-nav {
        display: none;
    }
    
    .navbar-cta {
        display: none;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .custom-navbar {
        background: transparent !important;
        border-bottom: 2px solid #ffffff;
    }
    
    .navbar-nav-link,
    .navbar-dropdown-button {
        color: #ffffff;
    }
    
    .navbar-nav-link:hover,
    .navbar-dropdown-button:hover {
        color: #00ffff;
    }
}

/* 减少动画模式支持 */
@media (prefers-reduced-motion: reduce) {
    .custom-navbar,
    .navbar-nav-link,
    .navbar-dropdown-button,
    .navbar-cta-button,
    .navbar-mobile-button,
    .navbar-mobile-link {
        transition: none;
    }
    
    .navbar-dropdown-menu {
        transition: opacity 0.1s ease;
    }
    
    .navbar-animate {
        animation: none;
    }
}

/* 深色模式优化 */
@media (prefers-color-scheme: dark) {
    .custom-navbar {
        background: transparent !important;
    }
    
    .navbar-dropdown-menu {
        background: #0f172a;
        border-color: rgba(14, 165, 233, 0.3);
    }
    
    .navbar-mobile-menu {
        background: #0f172a;
    }
}