* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

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

header {
    background: var(--card-bg);
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

header h1 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.header-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

header h1 i {
    margin-right: 10px;
}

nav {
    display: flex;
    gap: 10px;
}

.nav-btn {
    padding: 10px 20px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    color: var(--text-secondary);
    transition: all 0.3s;
}

.nav-btn:hover {
    background: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.nav-btn i {
    margin-right: 8px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

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

.page-header h2 {
    font-size: 24px;
    color: var(--text-primary);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: #475569;
}

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

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

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

.filter-section {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.filter-section select,
.filter-section input {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--card-bg);
}

.filter-section select {
    min-width: 180px;
}

.filter-section input {
    flex: 1;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.project-card-header h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.category-badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

.category-初步交流项目 {
    background: #dbeafe;
    color: #1e40af;
}

.category-深入交流项目 {
    background: #fef3c7;
    color: #92400e;
}

.category-在执行项目 {
    background: #fce7f3;
    color: #9f1239;
}

.category-投后项目 {
    background: #d1fae5;
    color: #065f46;
}

.category-其他组项目 {
    background: #f3f4f6;
    color: #374151;
}

.project-info {
    margin-bottom: 15px;
}

.project-info-item {
    display: flex;
    padding: 5px 0;
    font-size: 14px;
}

.project-info-item label {
    font-weight: 500;
    color: var(--text-secondary);
    min-width: 70px;
}

.project-info-item span {
    color: var(--text-primary);
}

.project-card-actions {
    display: flex;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.project-card-actions button {
    flex: 1;
    padding: 8px;
    font-size: 13px;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-size: 20px;
    color: var(--text-primary);
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s;
}

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

.form-group {
    padding: 15px 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

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

.form-group textarea {
    resize: vertical;
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 20px 25px;
    border-top: 1px solid var(--border-color);
}

.week-selector {
    display: flex;
    align-items: center;
    gap: 15px;
}

.week-selector label {
    font-weight: 500;
    color: var(--text-primary);
}

.week-selector input[type="week"] {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.weekly-input-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
}

.weekly-input-section h3 {
    font-size: 20px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

/* 项目筛选区域 */
.project-selection-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 25px;
}

.project-selection-section h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.selection-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.project-checkbox-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 10px;
    max-height: 450px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    background: var(--bg-color);
}

.project-checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px;
    background: var(--card-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    transition: all 0.2s;
    cursor: pointer;
}

.project-checkbox-item:hover {
    border-color: var(--primary-color);
    background: #f1f5f9;
}

.project-checkbox-item.updated-this-week {
    border-color: var(--success-color);
    background: #f0fdf4;
}

.project-checkbox-item.updated-last-week {
    border-color: var(--warning-color);
    background: #fffbeb;
}

.project-checkbox-item input[type="checkbox"] {
    margin-top: 2px;
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.project-checkbox-label {
    flex: 1;
    cursor: pointer;
}

.project-checkbox-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.project-checkbox-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-checkbox-stage {
    display: inline-block;
    padding: 2px 8px;
    background: var(--border-color);
    border-radius: 4px;
    font-size: 11px;
}

.project-checkbox-update-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
}

.project-checkbox-update-status i {
    font-size: 10px;
}

/* 本周项目更新列表 - 重新设计 */
.weekly-input-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 20px;
}

.weekly-input-item {
    background: white;
    border-radius: 10px;
    padding: 18px;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.weekly-input-item:hover {
    border-color: #3b82f6;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
    transform: translateY(-2px);
}

/* 项目头部 */
.weekly-input-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f3f4f6;
    gap: 12px;
}

.project-title-section {
    flex: 1;
    min-width: 0;
}

.weekly-input-header h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
    margin: 0 0 6px 0;
    line-height: 1.4;
}

.project-stage-label {
    display: inline-block;
    background: #f3f4f6;
    color: #6b7280;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-right: 6px;
}

.important-badge {
    display: inline-block;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.important-badge i {
    margin-right: 3px;
}

.weekly-input-header .btn-sm {
    flex-shrink: 0;
    padding: 6px 12px;
    font-size: 13px;
    white-space: nowrap;
}

/* 内容区域 */
.weekly-input-content {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.work-section,
.plan-section {
    background: #f9fafb;
    padding: 12px;
    border-radius: 6px;
    border-left: 3px solid #3b82f6;
}

.plan-section {
    border-left-color: #10b981;
}

.section-label {
    font-size: 12px;
    font-weight: 600;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.section-text {
    font-size: 13px;
    color: #374151;
    line-height: 1.7;
    white-space: pre-line;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.section-text.empty-text {
    color: #9ca3af;
    font-style: italic;
}

/* 响应式 */
@media (max-width: 768px) {
    .weekly-input-list {
        grid-template-columns: 1fr;
    }
    
    .weekly-input-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .weekly-input-header .btn-sm {
        width: 100%;
    }
}

.report-preview {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.report-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.report-content {
    background: white;
    padding: 40px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.8;
}

.report-content h1 {
    text-align: center;
    font-size: 26px;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.report-content h2 {
    font-size: 20px;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 8px;
}

.report-content h3 {
    font-size: 16px;
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.report-content p {
    margin-bottom: 10px;
}

.report-content .key-points {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}

.report-content .project-item {
    margin-bottom: 20px;
    padding: 15px;
    background: var(--bg-color);
    border-radius: 8px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 16px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
}

@media print {
    body {
        background: white;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    header, .page-header, .report-actions, .nav-btn {
        display: none !important;
    }
    
    .report-preview {
        box-shadow: none;
        padding: 0;
    }
    
    .report-content {
        border: none;
        padding: 20px;
    }
}

/* 新增样式 - 周报相关 */
.category-section {
    margin-bottom: 30px;
}

.category-title {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 15px;
    padding: 10px 15px;
    background: var(--bg-color);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

.category-title .count {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: normal;
    margin-left: 8px;
}

.projects-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.project-card-body {
    font-size: 14px;
    color: var(--text-secondary);
}

.project-card-body p {
    margin: 8px 0;
    display: flex;
    align-items: center;
}

.project-card-body i {
    width: 20px;
    margin-right: 8px;
    color: var(--primary-color);
}

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

.icon-btn {
    background: transparent;
    border: none;
    padding: 6px 10px;
    cursor: pointer;
    border-radius: 6px;
    color: var(--text-secondary);
    transition: all 0.3s;
}

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

.icon-btn.delete:hover {
    background: #fee2e2;
    color: var(--danger-color);
}

.week-info {
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
}

.weekly-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.weekly-input-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    transition: all 0.3s;
}

.weekly-input-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.weekly-input-card.has-update {
    border-color: var(--success-color);
    background: #f0fdf4;
}

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

.weekly-card-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.weekly-card-header h5 {
    font-size: 16px;
    color: var(--text-primary);
    margin: 0;
}

.project-meta {
    font-size: 13px;
    color: var(--text-secondary);
    font-style: italic;
}

.progress-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}

.progress-section:first-child {
    border-top: none;
    padding-top: 0;
}

.progress-section h6 {
    font-size: 14px;
    color: var(--primary-color);
    margin: 0 0 8px 0;
    font-weight: 600;
}

.progress-section h6 i {
    margin-right: 6px;
}

.progress-detail {
    margin: 12px 0;
}

.progress-detail p {
    margin: 4px 0;
}

.progress-detail strong {
    color: var(--primary-color);
    font-weight: 600;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.weekly-card-content {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.weekly-card-content p {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    white-space: pre-wrap;
}

.key-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: #fef3c7;
    color: #92400e;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 8px;
}

.report-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.report-header h2 {
    font-size: 28px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.report-date {
    font-size: 14px;
    color: var(--text-secondary);
}

.report-section {
    margin-bottom: 30px;
}

.report-section h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.key-points {
    background: #fef3c7;
    border-left: 4px solid var(--warning-color);
    padding: 20px;
    border-radius: 8px;
}

.key-point-item {
    margin-bottom: 20px;
}

.key-point-item:last-child {
    margin-bottom: 0;
}

.key-point-item strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.key-point-item p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.project-updates {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.update-item {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.update-item h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin: 0 0 10px 0;
}

.update-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    white-space: pre-wrap;
}

.text-muted {
    color: var(--text-secondary);
    font-style: italic;
}

.btn-sm:hover {
    transform: translateY(-1px);
}

/* 快速入门提示 */
.quick-start-tip {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 12px;
    padding: 25px;
    margin-top: 30px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.5s ease-out;
}

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

.tip-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.tip-header i {
    font-size: 24px;
}

.tip-header h4 {
    flex: 1;
    margin: 0;
    font-size: 20px;
}

.tip-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
}

.tip-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.tip-content ol {
    margin: 0 0 15px 20px;
    padding: 0;
}

.tip-content li {
    margin: 12px 0;
    line-height: 1.6;
}

.tip-content strong {
    font-weight: 600;
}

.tip-note {
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 15px;
    border-radius: 8px;
    margin: 15px 0 0 0;
    font-size: 14px;
    border-left: 3px solid rgba(255, 255, 255, 0.5);
}

.tip-note i {
    margin-right: 8px;
}

/* 统计卡片 */
.stats-overview {
    margin-bottom: 25px;
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 2px solid transparent;
}

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

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

.stat-card.stat-primary .stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

.stat-card.stat-success .stat-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

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

.stat-card.stat-warning .stat-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-card.stat-info {
    border-color: #3b82f6;
}

.stat-card.stat-info .stat-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 消息提示 */
.message-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
}

.message-toast.show {
    opacity: 1;
    transform: translateX(0);
}

.message-toast i {
    font-size: 18px;
}

.message-success {
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.message-error {
    border-left: 4px solid var(--danger-color);
    color: var(--danger-color);
}

.message-info {
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

.message-toast span {
    color: var(--text-primary);
}

/* 项目选择列表样式 */
.week-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.selection-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.selection-tip {
    background: #eff6ff;
    border-left: 4px solid var(--primary-color);
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.selection-tip i {
    color: var(--primary-color);
    font-size: 16px;
}

.selection-tip strong {
    color: var(--primary-color);
}

.project-selection-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.project-selection-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    display: flex;
    gap: 15px;
    transition: all 0.3s;
    cursor: pointer;
}

.project-selection-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

.project-selection-card.selected {
    border-color: var(--success-color);
    background: #f0fdf4;
}

.selection-checkbox {
    display: flex;
    align-items: flex-start;
    padding-top: 2px;
}

.selection-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.selection-content {
    flex: 1;
}

.selection-header {
    margin-bottom: 8px;
}

.selection-header .project-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    margin-right: 10px;
}

.selection-header .project-name:hover {
    color: var(--primary-color);
}

.selection-badges {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-last-week {
    background: #fef3c7;
    color: #92400e;
}

.badge-current-week {
    background: #d1fae5;
    color: #065f46;
}

.badge-important {
    background: #fee2e2;
    color: #991b1b;
}

.selection-preview {
    background: var(--bg-color);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 10px;
}

.preview-section {
    margin-bottom: 10px;
}

.preview-section:last-child {
    margin-bottom: 0;
}

.preview-section strong {
    display: block;
    margin-bottom: 4px;
    font-size: 13px;
    color: var(--primary-color);
}

.preview-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    white-space: pre-wrap;
}

.selection-empty {
    padding: 10px 0;
}

.selection-actions {
    display: flex;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}

.report-meta {
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 5px;
}

.project-info-line {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.work-content, .plan-content {
    white-space: pre-wrap;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 15px;
    }
    
    header h1 {
        font-size: 22px;
    }
    
    nav {
        flex-direction: column;
    }
    
    .nav-btn {
        width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-list {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .filter-section {
        flex-direction: column;
    }
    
    .filter-section select,
    .filter-section input {
        width: 100%;
    }
    
    .week-selector {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }
    
    .week-selector input[type="week"] {
        width: 100%;
    }
    
    .report-actions {
        flex-direction: column;
    }
    
    .report-content {
        padding: 20px;
    }
    
    .weekly-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .weekly-card-header button {
        width: 100%;
    }
    
    .stats-cards {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .message-toast {
        right: 10px;
        left: 10px;
        max-width: calc(100% - 20px);
    }
    
    .quick-start-tip {
        padding: 20px;
    }
    
    .tip-content ol {
        margin-left: 15px;
    }
}