/* ===== 公共导航栏样式 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background-color: rgba(255, 106, 0, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo__graphic {
    width: 3rem;
    height: 3rem;
    background-image: url('/images/Fu.png');
    background-size: cover;
    background-position: center;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo__text {
    font-family: 'Alimama FangYuanTi VF', sans-serif;
    font-size: 2.25rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4rem;
    list-style: none;
}

.nav-menu__link {
    color: #fff;
    text-decoration: none;
    font-size: 1.125rem;
    font-weight: 700;
    position: relative;
    padding: 0.5rem 0;
}

.nav-menu__link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1rem;
    height: 2px;
    background-color: #fff;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.language-selector {
    position: relative;
    cursor: pointer;
}

.language-current {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #fff;
    border-radius: 8px;
    color: #333;
    font-size: 0.875rem;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 120px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: none;
    overflow: hidden;
    margin-top: 0.5rem;
}

.language-selector:hover .language-dropdown {
    display: block;
}

.language-option {
    padding: 0.75rem 1rem;
    color: #333;
    text-decoration: none;
    display: block;
    font-size: 0.875rem;
}

.language-option:hover {
    background-color: #f5f5f5;
}

/* ===== 公共底部样式 ===== */
.site-footer {
    background-color: #FF6A00;
    color: #fff;
    padding: 3rem 0;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-copyright {
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.6;
}

.footer-legal {
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.6;
    text-align: right;
}

.footer-legal a {
    color: #fff;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.footer-legal a:hover {
    border-bottom-color: #fff;
}

/* ===== 响应式设计 ===== */
@media (max-width: 992px) {
    .nav-menu {
        gap: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-legal {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .nav-menu {
        order: 3;
        width: 100%;
        justify-content: center;
        gap: 1.5rem;
    }
    
    .site-footer {
        padding: 2rem 1rem;
    }
}