/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3a86ff;
    --primary-dark: #2667cc;
    --secondary-color: #8338ec;
    --accent-color: #ff006e;
    --success-color: #38b000;
    --warning-color: #ff9e00;
    --danger-color: #ef233c;
    
    --light-bg: #f8f9fa;
    --light-card: #ffffff;
    --light-text: #212529;
    --light-muted: #6c757d;
    --light-border: #dee2e6;
    
    --dark-bg: #121212;
    --dark-card: #1e1e1e;
    --dark-text: #e9ecef;
    --dark-muted: #adb5bd;
    --dark-border: #343a40;
    
    --font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    
    /* 默认浅色主题 */
    --bg-color: var(--light-bg);
    --card-color: var(--light-card);
    --text-color: var(--light-text);
    --muted-color: var(--light-muted);
    --border-color: var(--light-border);
}

/* 暗色主题 */
body.dark-mode {
    --bg-color: var(--dark-bg);
    --card-color: var(--dark-card);
    --text-color: var(--dark-text);
    --muted-color: var(--dark-muted);
    --border-color: var(--dark-border);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 40px 0;
    margin-bottom: 30px;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.header-content {
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 25px;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* 搜索区域 */
.search-container {
    margin-bottom: 30px;
}

.search-box {
    position: relative;
    max-width: 800px;
    margin: 0 auto 20px;
}

.search-box i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted-color);
    font-size: 1.2rem;
}

#searchInput {
    width: 100%;
    padding: 16px 50px 16px 50px;
    font-size: 1.1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--card-color);
    color: var(--text-color);
    transition: var(--transition);
}

#searchInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.2);
}

.clear-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--muted-color);
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.clear-btn:hover {
    color: var(--danger-color);
}

.search-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.filter-buttons {
    display: flex;
    gap: 10px;
}

.filter-btn {
    padding: 8px 16px;
    background-color: var(--card-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

#sortSelect {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--card-color);
    color: var(--text-color);
    cursor: pointer;
}

/* 主要内容布局 */
.main-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
}

@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* 侧边栏 */
.sidebar {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 20px;
    align-self: start;
}

.filter-section, .category-section, .quick-stats, .actions {
    margin-bottom: 25px;
}

.filter-section h3, .category-section h3, .quick-stats h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
}

.theme-filters {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.theme-filter {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.theme-filter:hover {
    background-color: rgba(58, 134, 255, 0.1);
}

.theme-filter.active {
    background-color: rgba(58, 134, 255, 0.15);
    font-weight: bold;
}

.theme-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.theme-name {
    flex: 1;
}

.theme-count {
    background-color: var(--bg-color);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--muted-color);
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.category-tag {
    padding: 6px 12px;
    background-color: rgba(131, 56, 236, 0.1);
    border-radius: 16px;
    font-size: 0.85rem;
    color: var(--secondary-color);
    cursor: pointer;
    transition: var(--transition);
}

.category-tag:hover {
    background-color: rgba(131, 56, 236, 0.2);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.stat-item {
    text-align: center;
    padding: 12px;
    background-color: var(--bg-color);
    border-radius: 8px;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--muted-color);
}

.actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-btn {
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
}

.action-btn:hover {
    background-color: var(--primary-dark);
}

.action-btn:nth-child(2) {
    background-color: var(--secondary-color);
}

.action-btn:nth-child(2):hover {
    background-color: #7229d4;
}

.action-btn:nth-child(3) {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.action-btn:nth-child(3):hover {
    background-color: var(--bg-color);
}

/* 术语区域 */
.terms-section {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--box-shadow);
}

.terms-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}

#termsHeading {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.count-badge {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.view-options {
    display: flex;
    gap: 8px;
}

.view-btn {
    padding: 8px 16px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.view-btn:hover {
    border-color: var(--primary-color);
}

.view-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* 术语容器 */
.terms-container {
    min-height: 500px;
}

/* 卡片视图 */
.terms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.term-card {
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.term-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    border-color: var(--primary-color);
}

.term-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.term-card-id {
    font-size: 0.9rem;
    color: var(--muted-color);
    background-color: rgba(58, 134, 255, 0.1);
    padding: 3px 8px;
    border-radius: 12px;
}

.term-card-favorite {
    background: none;
    border: none;
    color: var(--muted-color);
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.term-card-favorite:hover {
    color: var(--warning-color);
}

.term-card-favorite.active {
    color: var(--warning-color);
}

.term-card-name {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 8px;
    line-height: 1.3;
}

.term-card-en {
    font-size: 0.95rem;
    color: var(--secondary-color);
    margin-bottom: 12px;
    font-style: italic;
}

.term-card-excerpt {
    font-size: 0.95rem;
    color: var(--muted-color);
    margin-bottom: 15px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.term-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.term-card-theme {
    padding: 4px 10px;
    background-color: rgba(131, 56, 236, 0.1);
    color: var(--secondary-color);
    border-radius: 12px;
}

.term-card-category {
    color: var(--muted-color);
}

/* 列表视图 */
.terms-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.term-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.term-item:hover {
    background-color: rgba(58, 134, 255, 0.05);
    border-color: var(--primary-color);
}

.term-item-id {
    min-width: 50px;
    font-weight: bold;
    color: var(--primary-color);
}

.term-item-content {
    flex: 1;
    margin: 0 15px;
}

.term-item-name {
    font-weight: bold;
    margin-bottom: 4px;
}

.term-item-en {
    font-size: 0.9rem;
    color: var(--muted-color);
    margin-bottom: 4px;
}

.term-item-excerpt {
    font-size: 0.9rem;
    color: var(--muted-color);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.term-item-theme {
    font-size: 0.85rem;
    color: var(--secondary-color);
    background-color: rgba(131, 56, 236, 0.1);
    padding: 4px 10px;
    border-radius: 12px;
}

/* 表格视图 */
.terms-table {
    width: 100%;
    border-collapse: collapse;
}

.terms-table th,
.terms-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.terms-table th {
    background-color: var(--bg-color);
    font-weight: bold;
    color: var(--muted-color);
    position: sticky;
    top: 0;
}

.terms-table tr {
    cursor: pointer;
    transition: var(--transition);
}

.terms-table tr:hover {
    background-color: rgba(58, 134, 255, 0.05);
}

.terms-table tr td:first-child {
    font-weight: bold;
    color: var(--primary-color);
}

.terms-table-favorite {
    background: none;
    border: none;
    color: var(--muted-color);
    cursor: pointer;
    font-size: 1rem;
}

.terms-table-favorite.active {
    color: var(--warning-color);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.pagination-btn {
    padding: 8px 16px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(.disabled) {
    border-color: var(--primary-color);
}

.pagination-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-info {
    color: var(--muted-color);
    font-size: 0.9rem;
}

/* 无结果 */
.no-results {
    text-align: center;
    padding: 50px 20px;
}

.no-results i {
    font-size: 3rem;
    color: var(--muted-color);
    margin-bottom: 20px;
}

.no-results h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.no-results p {
    color: var(--muted-color);
    max-width: 400px;
    margin: 0 auto;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 50px;
    color: var(--muted-color);
}

.loading i {
    font-size: 2rem;
    margin-bottom: 15px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--card-color);
    border-radius: var(--border-radius);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.5rem;
}

.close-modal {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--muted-color);
    cursor: pointer;
    transition: var(--transition);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.close-modal:hover {
    color: var(--danger-color);
}

.modal-body {
    padding: 25px;
}

.term-detail .detail-header {
    margin-bottom: 20px;
}

.term-detail .detail-header h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.term-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.term-id {
    background-color: rgba(58, 134, 255, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 12px;
    font-weight: bold;
}

.term-theme {
    background-color: rgba(131, 56, 236, 0.1);
    color: var(--secondary-color);
    padding: 4px 12px;
    border-radius: 12px;
}

.favorite-btn {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.favorite-btn:hover {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.favorite-btn.active {
    border-color: var(--warning-color);
    background-color: rgba(255, 158, 0, 0.1);
    color: var(--warning-color);
}

.term-content {
    margin: 25px 0;
}

.term-en {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-style: italic;
}

.term-explanation {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
}

.term-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 10px;
}

.term-actions button {
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

.prev-btn, .next-btn {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.prev-btn:hover, .next-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.speak-btn {
    background-color: rgba(56, 176, 0, 0.1);
    color: var(--success-color);
}

.speak-btn:hover {
    background-color: rgba(56, 176, 0, 0.2);
}

.copy-btn {
    background-color: rgba(58, 134, 255, 0.1);
    color: var(--primary-color);
}

.copy-btn:hover {
    background-color: rgba(58, 134, 255, 0.2);
}

/* 页脚 */
footer {
    margin-top: 50px;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    color: var(--muted-color);
    font-size: 0.9rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--muted-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .stats {
        gap: 15px;
    }
    
    .stat {
        padding: 10px 15px;
    }
    
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        position: static;
    }
    
    .terms-grid {
        grid-template-columns: 1fr;
    }
    
    .terms-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .view-options {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .search-options {
        flex-direction: column;
        align-items: stretch;
    }
    
    .sort-options {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 1.7rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 20px 15px;
    }
    
    .term-detail .detail-header h3 {
        font-size: 1.5rem;
    }
    
    .term-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .term-actions button {
        justify-content: center;
    }
}