/* ==========================================
   壮族文化多模态外译语料库 - 组件样式 (门户版)
   ========================================== */

/* ==========================================
   导航栏 (门户风格 - 深红)
   ========================================== */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-primary);
    /* 深红色背景 */
    border-bottom: 2px solid var(--color-secondary);
    /* 金色底边 */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: white;
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    height: 80px;
    /* 增加高度 */
    max-width: 1400px;
    margin: 0 auto;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: white;
    /* 白色Logo文字 */
    text-decoration: none;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.navbar-logo-icon {
    width: 40px;
    height: 40px;
    background: white;
    /* 白色背景 */
    color: var(--color-primary);
    /* 红色图标 */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-family: serif;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.navbar-menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.navbar-menu a {
    font-weight: 500;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-xs) 0;
    transition: all var(--transition-fast);
    position: relative;
    border-bottom: 2px solid transparent;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: white;
    border-bottom-color: var(--color-secondary);
    /* 金色下划线 */
}

/* 移动端汉堡菜单 */
.navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.navbar-toggle span {
    width: 24px;
    height: 2px;
    background: white;
    /* 白色汉堡菜单 */
}

/* ==========================================
   门户特定组件
   ========================================== */

/* 1. 顶部Banner区域 */
.portal-banner {
    position: relative;
    height: 420px;
    background-color: #fcf9f2;
    /* 米色底 */
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #e0dcd0;
    overflow: hidden;
}

/* 模拟PPT中的扇子与水墨背景 */
.portal-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at 60% 50%, rgba(212, 175, 55, 0.15), transparent 60%);
    z-index: 1;
}

.portal-banner::after {
    content: '☁';
    /* 简单的云装饰 */
    position: absolute;
    font-size: 20rem;
    color: rgba(139, 26, 26, 0.03);
    top: -50px;
    left: 10%;
    z-index: 0;
}

.portal-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: var(--spacing-lg);
}

.portal-title-zh {
    font-size: 4rem;
    color: var(--color-primary);
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-xs);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.portal-title-en {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.1em;
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
    text-transform: uppercase;
    border-top: 1px solid rgba(58, 95, 112, 0.3);
    border-bottom: 1px solid rgba(58, 95, 112, 0.3);
    display: inline-block;
    padding: 4px 20px;
}

/* Banner中的搜索框 */
.banner-search {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

/* 2. 快速导航Tab */
.quick-nav-tabs {
    background: white;
    border-bottom: 1px solid #ddd;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.nav-tabs-container {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.nav-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
    font-weight: 600;
}

.nav-tab:hover,
.nav-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background: rgba(139, 26, 26, 0.02);
}

/* 3. 板块标题 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title::before {
    content: '';
    display: block;
    width: 6px;
    height: 1.2em;
    background: var(--color-secondary);
    border-radius: 2px;
}

.section-more {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.section-more:hover {
    color: var(--color-primary);
}

/* 4. 新闻列表 */
.news-list {
    list-style: none;
}

.news-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px dashed #eee;
    font-size: 0.95rem;
    align-items: baseline;
}

.news-item:last-child {
    border-bottom: none;
}

.news-link {
    color: var(--color-text-primary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: var(--spacing-md);
    position: relative;
    padding-left: 12px;
}

.news-link::before {
    content: '•';
    color: var(--color-secondary);
    position: absolute;
    left: 0;
}

.news-link:hover {
    color: var(--color-primary);
}

.news-date {
    color: #999;
    font-size: 0.85rem;
    font-family: monospace;
}

/* 5. 特色功能卡片 (Video/Term) */
.feature-box {
    background: white;
    padding: var(--spacing-md);
    border: 1px solid #eee;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.feature-box:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-secondary);
}

/* ==========================================
   旧有组件 (保留并微调)
   ========================================== */

/* 搜索框组件 (适配Banner) */
.search-box {
    position: relative;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 1rem 1.5rem;
    padding-right: 120px;
    font-size: 1.05rem;
    border: 1px solid var(--color-secondary);
    border-radius: var(--radius-md);
    background: white;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(128, 0, 32, 0.1);
}

.search-button {
    position: absolute;
    right: 6px;
    top: 6px;
    bottom: 6px;
    padding: 0 1.5rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 2px;
    font-weight: 500;
    font-family: var(--font-body);
    cursor: pointer;
    transition: all var(--transition-normal);
    letter-spacing: 0.05em;
}

.search-button:hover {
    background: var(--color-primary-light);
}

/* 语料卡片 */
.corpus-card {
    background: white;
    border: 1px solid #eee;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
}

/* 段落卡片：处理富文本浮动元素避免高度塌陷 */
.paragraph-card .paragraph-content {
    display: flow-root;
}

.paragraph-card .paragraph-content * {
    position: static !important;
    float: none !important;
    clear: both;
}

.paragraph-card .paragraph-content img,
.paragraph-card .paragraph-content video {
    max-width: 100%;
    height: auto;
}

.corpus-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-secondary);
}

.corpus-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-secondary);
    opacity: 0.5;
}

.corpus-card:hover::before {
    opacity: 1;
    background: var(--color-primary);
}

.corpus-card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: #f0f0f0;
    filter: sepia(10%);
    transition: filter 0.3s;
}

.corpus-card:hover .corpus-card-image {
    filter: sepia(0%);
}

.corpus-card-content {
    padding: var(--spacing-md);
}

.corpus-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
    height: 2.8em;
    overflow: hidden;
}

.corpus-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    border-bottom: 1px dashed #eee;
    padding-bottom: var(--spacing-sm);
}

.corpus-card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.corpus-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: var(--spacing-sm);
}

.tag {
    padding: 2px 8px;
    background: #fff;
    border: 1px solid var(--color-secondary);
    border-radius: 2px;
    font-size: 0.8rem;
    color: var(--color-secondary);
    transition: all 0.2s;
}

.tag:hover {
    background: var(--color-secondary);
    color: white;
}

/* 文本类标签 (黄色系) */
.tag.type-text {
    border-color: var(--color-label-text);
    color: var(--color-label-text);
}

.tag.type-text:hover {
    background: var(--color-label-text);
    color: white;
}

/* 视觉类标签 (绿色系) */
.tag.type-visual {
    border-color: var(--color-label-visual);
    color: var(--color-label-visual);
}

.tag.type-visual:hover {
    background: var(--color-label-visual);
    color: white;
}

/* 筛选器组件 */
.filter-sidebar {
    background: white;
    border: 1px solid #eee;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.filter-section {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #f0f0f0;
}

.filter-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.filter-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 2px;
    cursor: pointer;
    transition: background var(--transition-fast);
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.filter-option:hover {
    background: #f9f9f9;
    color: var(--color-primary);
}

/* 统计卡片 */
.stat-card {
    background: white;
    color: var(--color-text-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid #eee;
    border-top: 3px solid var(--color-primary);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.stat-card.secondary {
    border-top-color: var(--color-secondary);
}

.stat-card.secondary .stat-number {
    color: var(--color-secondary-dark);
}

.stat-card.accent {
    border-top-color: var(--color-accent);
}

.stat-card.accent .stat-number {
    color: var(--color-accent);
}

/* 媒体播放器 */
.media-player {
    background: #000;
    border-radius: var(--radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.audio-player {
    padding: var(--spacing-lg);
    background: #333;
    border-top: 3px solid var(--color-secondary);
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    color: #ccc;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
    border-top: 3px solid var(--color-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
}

.footer-section a {
    color: #999;
    font-size: 0.9rem;
}

.footer-section a:hover {
    color: white;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid #333;
    color: #666;
    font-size: 0.85rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar-container {
        height: 60px;
        padding: 0 var(--spacing-sm);
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--color-primary);
        /* 移动端菜单背景变红 */
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: var(--shadow-md);
        gap: 0;
    }

    .navbar-menu a {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        color: white;
    }

    .navbar-menu.active {
        display: flex;
    }

    .navbar-toggle {
        display: flex;
    }

    .portal-banner {
        height: 300px;
    }

    .portal-title-zh {
        font-size: 2.5rem;
    }

    .nav-tabs-container {
        overflow-x: auto;
        justify-content: flex-start;
        padding: 0 var(--spacing-md);
    }
}

/* 反色高亮样式 */
.highlight-inverse {
    background-color: var(--color-primary);
    color: white;
    border-radius: 2px;
    padding: 0 4px;
    font-weight: bold;
}