/* Header专用样式文件 */

/* Header基础样式 */
.pg-header {
    background-color: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.pg-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 第一行样式 */
.pg-header__top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #f3f4f6;
}

.pg-header__logo-section {
    flex: 0 0 auto;
}

.pg-header__logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2563eb;
    text-decoration: none;
    transition: color 0.2s;
}

.pg-header__logo:hover {
    color: #1d4ed8;
}

.pg-header__user-section {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.pg-header__user-name {
    font-size: 0.875rem;
    color: #374151;
    font-weight: 500;
}

.pg-header__user-link {
    color: #6b7280;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.pg-header__user-link:hover {
    background-color: #f3f4f6;
    color: #374151;
}

/* 第二行样式 */
.pg-header__nav-row {
    padding: 0;
}

.pg-header__main-nav {
    width: 100%;
}

.pg-header__nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0;
    flex-wrap: wrap;
}

.pg-header__nav-item {
    position: relative;
    flex: 1;
    min-width: fit-content;
}

.pg-header__nav-link {
    display: block;
    padding: 12px 20px;
    color: #374151;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s;
    border-bottom: 3px solid transparent;
}

.pg-header__nav-link:hover {
    background-color: #f9fafb;
    color: #2563eb;
    border-bottom-color: #2563eb;
}

/* 子菜单样式 */
.pg-header__submenu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-top: none;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 200;
}

.pg-header__nav-item:hover .pg-header__submenu {
    display: block;
}

.pg-header__submenu-link {
    display: block;
    padding: 12px 16px;
    color: #6b7280;
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s;
    border-bottom: 1px solid #f3f4f6;
}

.pg-header__submenu-link:last-child {
    border-bottom: none;
}

.pg-header__submenu-link:hover {
    background-color: #f9fafb;
    color: #2563eb;
}

/* 语言切换器样式 */
.language-switcher {
    position: relative;
    display: inline-block;
}

.language-switcher__trigger {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 6px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background-color: #ffffff;
    color: #374151;
    text-decoration: none;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.language-switcher__trigger:hover {
    border-color: #9ca3af;
    background-color: #f9fafb;
}

.language-switcher__dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 120px;
    background-color: #ffffff;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 300;
}

.language-switcher:hover .language-switcher__dropdown {
    display: block;
}

.language-switcher__option {
    display: block;
    padding: 8px 12px;
    color: #374151;
    text-decoration: none;
    font-size: 0.875rem;
    transition: background-color 0.2s;
    border-bottom: 1px solid #f3f4f6;
}

.language-switcher__option:last-child {
    border-bottom: none;
}

.language-switcher__option:hover {
    background-color: #f9fafb;
}

.language-switcher__option--active {
    background-color: #eff6ff;
    color: #2563eb;
    font-weight: 500;
}

/* 响应式设计 */
/* 中等屏幕优化 - 确保菜单在一行显示 */
@media (min-width: 769px) and (max-width: 1024px) {
    .pg-header__nav-item {
        flex: 1 1 auto;
        min-width: calc(25% - 2px);
        max-width: calc(25% - 2px);
    }
    
    .pg-header__nav-link {
        padding: 12px 8px;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .pg-header__top-row {
        padding: 6px 0;
        gap: 6px;
    }
    
    .pg-header__user-section {
        gap: 0.3rem;
        flex-wrap: wrap;
    }
    
    .pg-header__nav-links {
        flex-wrap: wrap;
        gap: 0;
        justify-content: center;
    }
    
    .pg-header__nav-item {
        flex: 1 1 auto;
        min-width: calc(25% - 1px);
        max-width: calc(25% - 1px);
    }
    
    .pg-header__nav-link {
        padding: 8px 4px;
        text-align: center;
        font-size: 0.85rem;
    }
    
    .pg-header__submenu {
        position: static;
        box-shadow: none;
        border: none;
        background-color: #f9fafb;
        margin-left: 12px;
        display: none;
    }
    
    .pg-header__nav-item:hover .pg-header__submenu {
        display: block;
    }
    
    .language-switcher__dropdown {
        right: auto;
        left: 0;
    }
}

@media (max-width: 480px) {
    .pg-header .container {
        padding: 0 8px;
    }
    
    .pg-header__top-row {
        padding: 4px 0;
        gap: 4px;
    }
    
    .pg-header__logo {
        font-size: 1.1rem;
    }
    
    .pg-header__user-section {
        gap: 0.25rem;
    }
    
    .pg-header__user-link {
        padding: 3px 6px;
        font-size: 0.75rem;
    }
    
    .pg-header__nav-item {
        flex: 0 0 auto;
        min-width: calc(50% - 1px);
    }
    
    .pg-header__nav-link {
        padding: 6px 4px;
        font-size: 0.8rem;
        text-align: center;
    }
}

/* 新增375px断点 - 针对iPhone SE等超小屏 */
@media (max-width: 375px) {
    .pg-header .container {
        padding: 0 6px;
    }
    
    .pg-header__top-row {
        padding: 3px 0;
        gap: 3px;
    }
    
    .pg-header__logo {
        font-size: 1rem;
    }
    
    .pg-header__nav-item {
        flex: 0 0 auto;
        min-width: calc(50% - 1px);
    }
    
    .pg-header__nav-link {
        padding: 4px 3px;
        font-size: 0.75rem;
        text-align: center;
    }
    
    .pg-header__user-link {
        padding: 2px 4px;
        font-size: 0.7rem;
    }
    
    .pg-header__user-section {
        gap: 0.2rem;
    }
}

/* 新增320px断点 - 针对超小屏 */
@media (max-width: 320px) {
    .pg-header .container {
        padding: 0 4px;
    }
    
    .pg-header__top-row {
        padding: 2px 0;
        gap: 2px;
    }
    
    .pg-header__logo {
        font-size: 0.95rem;
    }
    
    .pg-header__nav-item {
        flex: 0 0 auto;
        min-width: calc(50% - 1px);
    }
    
    .pg-header__nav-link {
        padding: 3px 2px;
        font-size: 0.7rem;
        text-align: center;
    }
    
    .pg-header__user-link {
        padding: 2px 3px;
        font-size: 0.65rem;
    }
    
    .pg-header__user-section {
        gap: 0.15rem;
    }
}