/* ================================================================
   Astra 导航栏优化
   色调：#b8860b 暖金 × #d4af37 浅金 × #2c2c2c 深灰
   ================================================================ */

/* 导航栏滚动过渡 */
.site-header {
    transition: all 0.3s ease;
}

/* 桌面端主导航悬停效果 */
.ast-desktop .main-header-menu .menu-item > .menu-link {
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 8px 20px !important;
}

/* 下划线动画 */
.ast-desktop .main-header-menu .menu-item > .menu-link::before {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background: linear-gradient(90deg, #d4af37, #b8860b);
    transition: all 0.3s ease;
    transform: translateX(-50%);
    border-radius: 2px;
}

.ast-desktop .main-header-menu .menu-item > .menu-link:hover {
    color: #b8860b !important;
}

.ast-desktop .main-header-menu .menu-item > .menu-link:hover::before {
    width: 70%;
}

/* 将深蓝色改为深灰色 */
.ast-desktop .main-header-menu .menu-item > .menu-link {
    color: #2c2c2c;
}

/* ===== 下拉菜单优化 ===== */
.ast-desktop .main-header-menu .sub-menu {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
    border-radius: 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    left: 0 !important;
    animation: none !important;
    padding: 0;
    min-width: 180px;
}

.ast-desktop .main-header-menu .menu-item:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    animation: none !important;
}

.ast-desktop .main-header-menu .sub-menu .menu-item {
    margin: 0 !important;
    position: relative;
}

/* 菜单项之间的分割线 */
.ast-desktop .main-header-menu .sub-menu .menu-item:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(0, 0, 0, 0.08);
}

.ast-desktop .main-header-menu .sub-menu .menu-item > .menu-link {
    transition: all 0.2s ease;
    padding: 12px 20px !important;
    margin: 0;
    border-radius: 0;
    display: block;
    width: 100%;
    color: #666;
    font-weight: 400;
    border-left: 3px solid transparent;
    position: relative;
}

/* cashmere 选项样式 */
.ast-desktop .main-header-menu .sub-menu .menu-item:first-child > .menu-link {
    background-color: #f8f5f0 !important;
    color: #b8860b !important;
    border-left: 3px solid #d4af37 !important;
}

/* cashmere 选项底部金色线条 */
.ast-desktop .main-header-menu .sub-menu .menu-item:first-child > .menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #d4af37;
}

/* others 选项样式 */
.ast-desktop .main-header-menu .sub-menu .menu-item:last-child > .menu-link {
    background-color: transparent !important;
    color: #666 !important;
    border-left: 3px solid transparent !important;
}

/* 普通选项悬停效果 */
.ast-desktop .main-header-menu .sub-menu .menu-item > .menu-link:hover {
    background: rgba(0, 0, 0, 0.03) !important;
    color: #333;
}

/* 移动端下拉菜单 */
@media (max-width: 768px) {
    .ast-desktop .main-header-menu .sub-menu {
        transform: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        display: none;
        position: static;
        box-shadow: none;
        background: rgba(0, 0, 0, 0.03);
        border: none;
    }

    .ast-desktop .main-header-menu .menu-item:hover > .sub-menu {
        transform: none !important;
    }
}

/* 移动端菜单动画 */
.ast-mobile-menu-wrapper .menu-item > .menu-link {
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.ast-mobile-menu-wrapper .menu-item > .menu-link:hover {
    border-left-color: #d4af37;
    padding-left: 25px !important;
}

/* 滚动时导航栏动画 */
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}