/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

/* 导航栏 */
.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px;
}

.logo h1 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 4px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* 主内容 */
.main-content {
    min-height: calc(100vh - 100px);
    padding: 16px 0;
}

/* 欢迎区域 */
.welcome-section {
    text-align: center;
    padding: 20px 0;
}

.welcome-section h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.welcome-section p {
    color: var(--text-secondary);
    font-size: 13px;
}

/* 统计卡片 */
.stats-cards {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 16px auto;
}

.stat-card {
    background: var(--card-bg);
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: center;
    min-width: 100px;
}

.stat-card.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.stat-number {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 12px;
    opacity: 0.85;
}

/* 新建项目 - 居中2行布局 */
.create-project-box-centered {
    max-width: 550px;
    margin: 20px auto;
}

.create-project-box-centered .input-row {
    display: flex;
    justify-content: center;
    margin-bottom: 12px;
}

.create-project-box-centered .button-row {
    display: flex;
    justify-content: center;
}

.form-input-large {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
}

.form-input-large:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* 设置按钮 */
.settings-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 100;
}

.settings-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 设置弹窗 */
.modal-settings {
    max-width: 450px;
    width: 90%;
}

/* 超大汇总弹窗 */
.modal-content.modal-xlarge {
    max-width: 1800px !important;
    width: 98%;
}

.modal-xlarge .modal-body {
    max-height: 80vh;
    overflow: auto;
    padding: 24px;
}

/* 大号汇总表格 */
.summary-table-xlarge {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

.summary-table-xlarge th {
    text-align: left;
    padding: 16px 14px;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
    font-size: 15px;
}

.summary-table-xlarge td {
    padding: 16px 14px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
    line-height: 1.8;
}

.summary-table-xlarge tr:hover {
    background: var(--bg-color);
}

.summary-table-xlarge .title-cell {
    max-width: 320px;
    font-weight: 500;
}

.summary-table-xlarge .summary-cell {
    max-width: 1100px;
    color: var(--text-primary);
    font-size: 15px;
}

.summary-table-xlarge .relevance-cell {
    max-width: 90px;
}

.summary-table-xlarge .relevance-stars {
    color: var(--accent-color);
    font-size: 18px;
}

/* 相关性标签 */
.relevance-high {
    color: #10b981;
    font-weight: 600;
}

.relevance-medium {
    color: var(--accent-color);
}

.relevance-low {
    color: var(--text-secondary);
}

/* 新建项目（旧版保留） */
.create-project-box {
    display: flex;
    gap: 8px;
    max-width: 500px;
    margin: 16px auto;
}

.create-project-box .form-input {
    flex: 1;
    padding: 10px 14px;
    font-size: 14px;
}

/* 项目列表 */
.projects-section {
    margin-top: 24px;
}

.projects-section h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 12px;
}

.project-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.project-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.project-status {
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 10px;
    background: var(--bg-color);
    color: var(--text-secondary);
}

.project-status.searching {
    background: #fef3c7;
    color: #92400e;
}

.project-status.completed {
    background: #d1fae5;
    color: #065f46;
}

.project-stats {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-item.highlight {
    color: var(--accent-color);
    font-weight: 600;
}

.project-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.no-projects {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* 模态框大尺寸 */
.modal-large {
    max-width: 1100px;
    width: 95%;
}

.modal-large .modal-body {
    max-height: 70vh;
    overflow: auto;
}

.modal-body {
    padding: 16px;
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
}

.form-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 16px;
}

.hint-text {
    color: var(--text-secondary);
    font-size: 12px;
    margin-bottom: 12px;
    text-align: center;
}

.keyword-suggestions {
    margin-bottom: 12px;
}

.suggest-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.suggest-tag {
    display: inline-block;
    padding: 4px 10px;
    margin: 4px 4px 4px 0;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 15px;
    font-size: 11px;
    cursor: pointer;
}

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

/* 大汇总表格 */
.summary-table-large {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.summary-table-large th {
    text-align: left;
    padding: 10px 8px;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
}

.summary-table-large td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}

.summary-table-large tr:hover {
    background: var(--bg-color);
}

.summary-table-large .rank {
    font-weight: 700;
    color: var(--primary-color);
}

.summary-table-large .title-cell {
    font-weight: 500;
    color: var(--text-primary);
    max-width: 300px;
}

.summary-table-large .summary-cell {
    color: var(--text-secondary);
    font-size: 12px;
    max-width: 200px;
}

.summary-stats {
    margin-bottom: 12px;
    display: flex;
    gap: 20px;
    font-size: 14px;
}

.summary-stats strong {
    color: var(--primary-color);
}

/* 项目详情页 */
.project-detail-page {
    max-width: 1000px;
    margin: 0 auto;
}

.project-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    padding: 16px;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.project-header-bar h2 {
    font-size: 18px;
    margin-bottom: 6px;
}

.project-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.project-meta .highlight {
    color: var(--accent-color);
    font-weight: 600;
}

.project-actions-bar {
    display: flex;
    gap: 8px;
}

.form-input-small {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
}

/* 论文卡片 */
.paper-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 14px;
    margin-bottom: 10px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 14px;
}

.paper-rank {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 30px;
}

.paper-content {
    flex: 1;
}

.paper-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.paper-summary {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.5;
}

.paper-detail-toggle {
    margin-top: 8px;
}

.paper-detail-toggle summary {
    cursor: pointer;
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
}

.paper-detail-content {
    margin-top: 10px;
    padding: 12px;
    background: var(--bg-color);
    border-radius: 6px;
}

.paper-detail-content .detail-section {
    margin-bottom: 12px;
}

.paper-detail-content .detail-section:last-child {
    margin-bottom: 0;
}

.paper-detail-content .detail-section h4 {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 6px;
}

.paper-detail-content .detail-section p {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.6;
}

/* 搜索框 */
.search-box {
    max-width: 400px;
    margin: 12px auto;
}

.search-input {
    width: 100%;
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.search-btn {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

/* 文件区域 */
.files-section {
    margin-top: 20px;
}

.files-section h3 {
    margin-bottom: 12px;
    font-size: 15px;
    font-weight: 600;
}

.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 12px;
}

.file-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow-sm);
}

.file-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.file-keyword {
    font-weight: 600;
    font-size: 13px;
    color: var(--primary-color);
}

.file-date {
    color: var(--text-secondary);
    font-size: 11px;
}

.file-stats {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.file-actions-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.action-btns {
    display: flex;
    gap: 4px;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

/* 全局进度条 */
.global-progress {
    position: fixed;
    top: 68px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border-radius: 18px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.18);
    padding: 24px 28px;
    width: min(92vw, 640px);
    z-index: 1000;
    border: 1px solid rgba(59, 130, 246, 0.16);
    border-top: 5px solid var(--primary-color);
}

.progress-content {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.progress-heading {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.progress-title {
    font-weight: 700;
    font-size: 22px;
    line-height: 1.2;
    color: var(--text-primary);
}

.progress-subtitle {
    font-size: 13px;
    line-height: 1.5;
    color: var(--text-secondary);
}

.progress-percent {
    font-weight: 700;
    font-size: 30px;
    line-height: 1;
    color: var(--primary-color);
    flex-shrink: 0;
}

.progress-bar-container {
    width: 100%;
    height: 14px;
    display: block;
    background: #dbe7f5;
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar-fill {
    display: block;
    height: 100%;
    width: 0%;
    line-height: 14px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: inherit;
    transition: width 0.3s ease;
}

.progress-status {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    font-weight: 600;
}

.progress-logs {
    display: grid;
    grid-template-rows: repeat(5, minmax(0, 1fr));
    gap: 8px;
    min-height: 180px;
}

.progress-log-item {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 28px;
    padding: 7px 10px;
    border-radius: 10px;
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-secondary);
}

.progress-log-item.is-latest {
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-primary);
    font-weight: 600;
}

.progress-log-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #94a3b8;
    flex-shrink: 0;
}

.progress-log-item.is-latest .progress-log-dot {
    background: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.14);
}

.progress-log-text {
    font-size: 13px;
    line-height: 1.5;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    max-height: 80vh;
    overflow: auto;
    box-shadow: var(--shadow-md);
}

.modal-content.modal-settings {
    max-width: 450px;
    width: 90%;
}

.modal-content.modal-large {
    max-width: 1100px;
    width: 95%;
}

.modal-content.modal-xlarge {
    max-width: 1800px !important;
    width: 98%;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 14px;
}

.modal-body {
    padding: 14px;
}

/* 汇总表格 */
.summary-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.summary-table th {
    text-align: left;
    padding: 8px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    font-size: 11px;
    color: var(--text-secondary);
}

.summary-table td {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
}

.summary-table a {
    color: var(--primary-color);
    text-decoration: none;
}

.summary-table a:hover {
    text-decoration: underline;
}

.summary-info {
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 12px;
}

/* 分组显示 */
.group-files {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sub-file {
    display: flex;
    justify-content: space-between;
    padding: 4px 8px;
    background: var(--bg-color);
    border-radius: 4px;
    font-size: 11px;
}

.sub-keyword {
    color: var(--text-primary);
}

.sub-count {
    color: var(--text-secondary);
}

.sub-more {
    text-align: center;
    font-size: 11px;
    color: var(--text-secondary);
    padding: 4px;
}

.file-count {
    color: var(--text-secondary);
    font-size: 11px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    background-color: var(--bg-color);
    border-radius: 10px;
    font-size: 11px;
    color: var(--text-secondary);
}

.badge-top {
    background-color: var(--accent-color);
    color: white;
}

/* 论文表格 */
.paper-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.paper-table th {
    text-align: left;
    padding: 6px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 11px;
}

.paper-table td {
    padding: 6px;
    border-bottom: 1px solid var(--border-color);
}

.more-link {
    text-align: center;
}

.more-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 12px;
}

.more-link a:hover {
    text-decoration: underline;
}

.paper-title {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 12px;
}

.paper-title:hover {
    color: var(--primary-color);
}

.score-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    background: var(--bg-color);
    color: var(--text-secondary);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

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

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

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

.btn-outline:hover {
    background-color: var(--primary-light);
}

.btn-small {
    padding: 3px 8px;
    font-size: 11px;
}

.btn-large {
    padding: 8px 20px;
    font-size: 13px;
}

/* 搜索页 */
.search-page {
    max-width: 900px;
    margin: 0 auto;
}

.search-header {
    text-align: center;
    padding: 12px 0;
}

/* 汇总面板 */
.summary-panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 14px;
    margin-bottom: 12px;
    box-shadow: var(--shadow-sm);
}

.summary-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.summary-header h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
}

.summary-actions {
    display: flex;
    gap: 6px;
}

.summary-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.summary-label {
    font-size: 11px;
    color: var(--text-secondary);
}

.summary-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-value.highlight {
    color: var(--accent-color);
}

.search-header {
    text-align: center;
    padding: 16px 0;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.header-top h2 {
    margin: 0;
    font-size: 16px;
}

.header-actions {
    display: flex;
    gap: 6px;
}

.search-form-inline {
    display: flex;
    gap: 8px;
    max-width: 500px;
    margin: 12px auto;
}

.search-input-large {
    flex: 1;
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
}

.search-input-large:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-btn-large {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
}

.search-info {
    color: var(--text-secondary);
    margin-top: 8px;
    font-size: 12px;
}

/* 过滤栏 */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-left {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.filter-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-btn {
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 12px;
}

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

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 12px;
}

.selected-count {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 12px;
}

/* 结果组 */
.result-group {
    margin-bottom: 16px;
}

.result-group-header {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 8px 12px;
    background: var(--card-bg);
    border-radius: 6px;
    margin-bottom: 8px;
}

.group-keyword {
    font-weight: 600;
    font-size: 13px;
    color: var(--primary-color);
}

.group-date {
    color: var(--text-secondary);
    font-size: 11px;
}

.group-count {
    margin-left: auto;
    background: var(--bg-color);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
}

/* 论文卡片 */
.paper-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 12px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: 10px;
}

.paper-select {
    padding-top: 4px;
}

.paper-checkbox {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.paper-card-body {
    flex: 1;
}

.paper-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 6px;
}

.paper-card-header h3 {
    flex: 1;
    margin-right: 8px;
}

.paper-card-header h3 a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 13px;
    line-height: 1.4;
    font-weight: 500;
}

.paper-card-header h3 a:hover {
    color: var(--primary-color);
}

.paper-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 6px;
}

.meta-tag {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-color);
    border-radius: 4px;
    font-size: 11px;
    color: var(--text-secondary);
}

.paper-summary {
    color: var(--text-secondary);
    margin-bottom: 6px;
    line-height: 1.5;
    font-size: 12px;
}

.paper-preview details {
    margin-bottom: 6px;
}

.paper-preview summary {
    cursor: pointer;
    color: var(--primary-color);
    font-weight: 500;
    user-select: none;
    font-size: 12px;
}

.paper-preview summary:hover {
    text-decoration: underline;
}

.preview-content {
    margin-top: 6px;
    padding: 8px;
    background: var(--bg-color);
    border-radius: 6px;
    color: var(--text-secondary);
    line-height: 1.5;
    font-size: 12px;
}

.paper-footer {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

.view-detail-btn {
    padding: 4px 12px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 12px;
}

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

.external-link-btn {
    padding: 4px 12px;
    background-color: white;
    color: var(--primary-color);
    text-decoration: none;
    border: 1px solid var(--primary-color);
    border-radius: 5px;
    font-size: 12px;
}

.external-link-btn:hover {
    background-color: var(--primary-light);
}

/* 无结果 */
.no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

/* 论文详情页 */
.paper-detail-page {
    max-width: 800px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 12px;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.paper-header {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.paper-title-section h1 {
    font-size: 16px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.paper-badges {
    display: flex;
    gap: 8px;
}

.score-badge-large {
    display: inline-block;
    padding: 4px 10px;
    background-color: var(--bg-color);
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
}

.badge-top-large {
    display: inline-block;
    padding: 4px 10px;
    background-color: var(--accent-color);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
}

/* 详情区域 */
.paper-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.detail-section {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 14px;
    box-shadow: var(--shadow-sm);
}

.detail-section h2 {
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--primary-color);
}

.detail-section.highlight-section {
    border: 2px solid var(--primary-color);
}

.section-content {
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 13px;
}

.chinese-detail {
    font-size: 13px;
    padding: 10px;
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    border-radius: 6px;
}

.keyword-context {
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 12px;
}

.paper-link-btn {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 12px;
}

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

.back-nav {
    text-align: center;
    margin: 16px 0;
}

.back-btn {
    display: inline-block;
    padding: 6px 16px;
    background-color: white;
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
}

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

/* 页脚 */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 16px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

/* 提示框 */
.alert {
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert-link {
    margin-left: auto;
    color: var(--primary-color);
    font-weight: 500;
}

/* 继续搜索页 */
.continue-search-page {
    max-width: 700px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 16px;
}

.page-header h2 {
    margin-bottom: 4px;
    font-size: 16px;
}

.search-form-container {
    background: var(--card-bg);
    padding: 16px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.continue-search-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 13px;
}

.form-input,
.form-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-actions {
    text-align: center;
    padding-top: 8px;
}

/* 翻译提示 */
.translation-hint {
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.translation-hint h4 {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--primary-color);
}

.hint-examples {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hint-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--bg-color);
    border-radius: 6px;
    font-size: 12px;
}

.hint-cn {
    font-weight: 500;
    color: var(--text-primary);
    min-width: 80px;
}

.hint-arrow {
    color: var(--primary-color);
}

.hint-en {
    flex: 1;
    color: var(--text-secondary);
    font-family: monospace;
}

.input-with-preview {
    position: relative;
}

.translation-preview {
    margin-top: 6px;
    padding: 6px 10px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 1px solid #10b981;
    border-radius: 6px;
    font-size: 12px;
}

.preview-label {
    font-weight: 500;
    color: #065f46;
    margin-right: 6px;
}

.preview-keywords {
    color: #047857;
    font-family: monospace;
}

/* 进度面板 */
.progress-panel {
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.progress-panel h4 {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--primary-color);
}

.progress-panel .progress-bar-container {
    width: 100%;
    height: 20px;
    background: var(--bg-color);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    transition: width 0.3s;
    width: 0%;
}

.progress-status {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    font-size: 12px;
}

.progress-details {
    color: var(--text-secondary);
    font-size: 11px;
    line-height: 1.5;
}

.quick-search-section {
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.quick-search-section h3 {
    margin-bottom: 8px;
    font-size: 13px;
}

.quick-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.quick-tag {
    padding: 4px 10px;
    background: var(--bg-color);
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 12px;
}

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

.recent-searches {
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.recent-searches h3 {
    margin-bottom: 8px;
    font-size: 13px;
}

.search-history {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.history-item {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    background: var(--bg-color);
    border-radius: 6px;
    gap: 8px;
}

.history-keyword {
    font-weight: 500;
    font-size: 12px;
    color: var(--primary-color);
    flex: 1;
}

.history-stats {
    color: var(--text-secondary);
    font-size: 11px;
}

.history-actions {
    display: flex;
    gap: 4px;
}

/* 搜索结果列表 */
.search-results-list {
    background: var(--card-bg);
    padding: 12px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.search-results-list h4 {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--primary-color);
}

.original-keyword {
    padding: 8px 10px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-radius: 6px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.original-keyword .label {
    font-weight: 500;
    color: #065f46;
}

.original-keyword .value {
    flex: 1;
    font-weight: 600;
    color: #047857;
}

.keywords-translated {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.keywords-translated .label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 12px;
}

.keyword-item {
    padding: 4px 10px;
    background: var(--bg-color);
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    color: var(--text-primary);
}

.results-cards {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.result-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    background: var(--bg-color);
    border-radius: 6px;
    border-left: 3px solid var(--success-color);
}

.result-card.error {
    border-left-color: var(--danger-color);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-keyword {
    font-weight: 500;
    font-size: 12px;
    color: var(--text-primary);
}

.result-status {
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
}

.result-status.success {
    background: #d1fae5;
    color: #065f46;
}

.result-status.error {
    background: #fee2e2;
    color: #991b1b;
}

.result-actions {
    display: flex;
    gap: 4px;
    padding-top: 4px;
}

/* 导出面板 */
.export-panel {
    position: fixed;
    bottom: 16px;
    right: 16px;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    min-width: 260px;
}

.export-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
}

.export-panel-header h3 {
    margin: 0;
    font-size: 13px;
}

.close-btn {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-secondary);
    line-height: 1;
}

.close-btn:hover {
    color: var(--text-primary);
}

.export-panel-body {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: center;
}

.export-panel-body p {
    color: var(--text-secondary);
    font-size: 12px;
}

/* 时间线页 */
.timeline-page {
    max-width: 800px;
    margin: 0 auto;
}

.timeline-header {
    margin-bottom: 16px;
}

.timeline-subtitle {
    color: var(--text-secondary);
    margin-top: 4px;
    font-size: 12px;
}

.timeline-container {
    position: relative;
    padding-left: 16px;
}

.timeline-year-block {
    margin-bottom: 16px;
    position: relative;
}

.year-marker {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    padding: 6px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    position: relative;
    left: -16px;
    width: fit-content;
}

.year-number {
    font-size: 14px;
    font-weight: 600;
}

.year-count {
    font-size: 11px;
    opacity: 0.9;
}

.year-papers {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-left: 2px solid var(--border-color);
    padding-left: 12px;
    margin-left: 4px;
}

.timeline-paper-card {
    display: flex;
    gap: 8px;
    position: relative;
}

.paper-line {
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
    position: absolute;
    left: -17px;
    top: 6px;
}

.timeline-paper-card .paper-content {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 10px;
    box-shadow: var(--shadow-sm);
    flex: 1;
}

.timeline-paper-card .paper-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 6px;
}

.timeline-paper-card .paper-header h3 {
    font-size: 12px;
    line-height: 1.4;
    flex: 1;
    margin-right: 8px;
}

.timeline-paper-card .paper-header h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.timeline-paper-card .paper-header h3 a:hover {
    color: var(--primary-color);
}

.timeline-paper-card .paper-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 6px;
}

.timeline-paper-card .paper-summary {
    color: var(--text-secondary);
    font-size: 11px;
    margin-bottom: 6px;
    line-height: 1.5;
}

.paper-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.tag {
    padding: 2px 8px;
    background: var(--bg-color);
    border-radius: 10px;
    font-size: 10px;
    color: var(--text-secondary);
}

.tag-top {
    background: var(--accent-color);
    color: white;
}

.timeline-actions {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}

/* 响应式 */
@media (max-width: 768px) {
    .navbar .container {
        height: auto;
        flex-direction: column;
        gap: 8px;
        padding: 8px 0;
    }

    .stats-cards {
        flex-direction: column;
        align-items: center;
    }

    .search-form-inline {
        flex-direction: column;
    }

    .paper-card {
        flex-direction: column;
    }

    .paper-footer {
        flex-direction: column;
    }

    .header-top {
        flex-direction: column;
        gap: 8px;
    }

    .files-grid {
        grid-template-columns: 1fr;
    }
}