/* ========================================
   Navigation Final - 最终版本
   ======================================== */

/* 导航外层容器 */
.nav-outer {
    flex: 1;
    margin: 0 20px;
    min-width: 0;
    position: relative;
}

/* 滚动容器 - 只控制横向滚动 */
.nav-scroll {
    overflow-x: auto;
    overflow-y: visible;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary) transparent;
    -webkit-overflow-scrolling: touch;
}

.nav-scroll::-webkit-scrollbar {
    height: 4px;
}

.nav-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.nav-scroll::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 2px;
}

/* 导航 */
.nav {
    display: flex;
}

/* 导航列表 */
.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;
}

/* 导航项 */
.nav-list > li {
    position: relative;
    flex-shrink: 0;
}

/* 导航链接 */
.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    color: var(--text);
    font-weight: 500;
    font-size: 14px;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    white-space: nowrap;
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary);
    background: rgba(201, 162, 39, 0.1);
}

/* 下拉菜单容器 */
.nav-dropdown {
    position: relative;
}

/* 下拉菜单 - 使用固定定位避免被截断 */
.dropdown-menu {
    position: fixed;
    min-width: 200px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 8px 0;
    margin: 0;
    list-style: none;
    z-index: 9999;
    
    /* 默认隐藏 */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

/* 下拉菜单显示 */
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

/* 下拉菜单项 */
.dropdown-menu li {
    display: block;
}

.dropdown-menu li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text);
    font-size: 14px;
    text-decoration: none;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.dropdown-menu li a:hover {
    background: var(--bg-light);
    color: var(--secondary);
}

/* 下拉箭头 */
.dropdown-icon {
    transition: transform 0.2s ease;
}

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

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .nav-outer {
        margin: 0 15px;
    }
    
    .nav-link {
        padding: 8px 10px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .nav-outer {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        margin: 0;
        z-index: 999;
        background: var(--bg-white);
        opacity: 0;
        visibility: hidden;
        transform: translateX(-100%);
        transition: all 0.3s ease;
    }
    
    .nav-outer.active {
        opacity: 1;
        visibility: visible;
        transform: translateX(0);
    }
    
    .nav-scroll {
        overflow-x: hidden;
        overflow-y: auto;
        height: 100%;
    }
    
    .nav {
        padding: 20px;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 8px;
    }
    
    .nav-list > li {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        justify-content: space-between;
        padding: 12px 16px;
        font-size: 15px;
    }
    
    /* 移动端下拉菜单 */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
        box-shadow: none;
        background: var(--bg-light);
        border: none;
        display: none;
        min-width: auto;
    }
    
    .nav-dropdown.active .dropdown-menu {
        display: block;
    }
    
    .dropdown-menu li a {
        padding: 10px 16px 10px 32px;
    }
}