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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
}

/* 头部样式 */
.header {
    background: white;
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.logo h1 {
    font-size: 18px;
    color: #2c3e50;
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-links a {
    text-decoration: none;
    color: #3498db;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-size: 14px;
}

.nav-links a:hover {
    background: #f8f9fa;
    color: #2980b9;
}

.nav-links span.welcome-text {
    color: #7f8c8d;
    font-weight: 500;
    font-size: 14px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: #3498db;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
}

/* 消息提示样式 */
.message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideIn 0.5s ease;
    font-size: 14px;
}

@keyframes slideIn {
    from { transform: translateY(-10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

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

.warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.close-btn {
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: inherit;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

.close-btn:hover {
    opacity: 1;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.card h2 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f2f5;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    background: white;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

.char-count {
    text-align: right;
    margin-top: 6px;
    font-size: 12px;
    color: #7f8c8d;
}

/* 按钮样式 */
.btn-group {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: #3498db;
    color: white;
    border: 1px solid #2980b9;
}

.btn-primary:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #f8f9fa;
    color: #495057;
    border: 1px solid #e9ecef;
}

.btn-secondary:hover {
    background: #e9ecef;
    transform: translateY(-1px);
}

.btn-success {
    background: #10b981;
    color: white;
    border: 1px solid #059669;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
}

.btn-warning {
    background: #f59e0b;
    color: white;
    border: 1px solid #d97706;
}

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

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

/* 冷却时间样式 */
.cooldown-info {
    background: #fef3c7;
    border: 1px solid #fde68a;
    color: #92400e;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 14px;
}

.cooldown-timer {
    font-weight: 700;
    color: #d97706;
}

/* 收件人类型切换 */
.recipient-type-group {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.recipient-type-option {
    padding: 8px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
    flex: 1;
    font-size: 14px;
}

.recipient-type-option.active {
    background: #3498db;
    color: white;
    border-color: #3498db;
}

.recipient-type-option:hover:not(.active) {
    background: #f8f9fa;
}

/* QQ信息表格样式 */
.qq-info-table {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px;
    margin-top: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.3s ease;
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.qq-info-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e0e0e0;
}

.qq-info-header h4 {
    font-size: 15px;
    color: #2c3e50;
    font-weight: 600;
}

.close-qq-info {
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.close-qq-info:hover {
    color: #64748b;
    background: #f1f5f9;
}

.qq-info-content {
    display: flex;
    gap: 15px;
}

.qq-info-content table {
    flex: 1;
    border-collapse: collapse;
}

.qq-info-content table tr {
    border-bottom: 1px solid #f0f2f5;
}

.qq-info-content table tr:last-child {
    border-bottom: none;
}

.qq-info-content table td {
    padding: 8px 0;
    font-size: 13px;
}

.qq-info-content table td:first-child {
    color: #64748b;
    font-weight: 500;
    width: 70px;
}

.qq-info-content table td:last-child {
    color: #1e293b;
    font-weight: 500;
}

.qq-avatar {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e0e0e0;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
}

.qq-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

/* QQ信息加载状态 */
.loading-qq {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3498db;
}

.loading-qq .fa-spinner {
    font-size: 24px;
}

/* AI检测结果样式 */
.ai-result {
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
}

.ai-result.success {
    background: #d1fae5;
    border: 1px solid #a7f3d0;
}

.ai-result.warning {
    background: #fef3c7;
    border: 1px solid #fde68a;
}

.risk-item {
    margin-top: 8px;
    padding: 8px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e0e0e0;
    font-size: 13px;
}

.risk-bar {
    height: 6px;
    border-radius: 3px;
    margin-top: 6px;
    transition: width 0.3s ease;
}

/* 历史记录控制区域样式 */
.history-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.history-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.refresh-status {
    font-size: 11px;
    color: #64748b;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.auto-refresh-status {
    font-size: 10px;
    color: #16a34a;
}

/* 搜索框样式 */
.search-form {
    margin-bottom: 20px;
}

.search-group {
    position: relative;
    display: flex;
    gap: 8px;
}

.search-group input {
    flex: 1;
    padding: 10px 40px 10px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    background: #f8f9fa;
}

.search-group input:focus {
    outline: none;
    border-color: #3498db;
    background: white;
}

.search-group button {
    padding: 10px 16px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-group button:hover {
    background: #2980b9;
}

.clear-search-btn {
    position: absolute;
    right: 100px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 6px;
    font-size: 12px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.clear-search-btn:hover {
    color: #64748b;
    background: #f1f5f9;
}

/* 历史记录项样式 */
.history-list {
    max-height: 500px;
    overflow-y: auto;
    padding-right: 8px;
}

.history-item {
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    background: white;
    transition: all 0.3s ease;
}

.history-item:hover {
    border-color: #3498db;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.1);
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    flex-wrap: wrap;
    gap: 8px;
}

.recipient-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.history-recipient {
    font-weight: 600;
    color: #1e293b;
    font-size: 15px;
}

.history-name {
    font-size: 12px;
    color: #64748b;
}

.time-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.history-time {
    font-size: 12px;
    color: #64748b;
    font-weight: 500;
}

.read-time {
    font-size: 11px;
    color: #16a34a;
    background: #f0fdf4;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.history-content {
    color: #475569;
    line-height: 1.5;
    margin-bottom: 15px;
    padding: 12px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 3px solid #3498db;
    font-size: 14px;
}

.history-status {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 16px;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

.status-sent {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.status-failed {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.status-read {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

.status-unread {
    background: #f8fafc;
    color: #64748b;
    border: 1px solid #e2e8f0;
}

.status-read-count {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

/* 阅读信息样式 */
.read-info {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 15px;
    margin-top: 12px;
}

.read-info-header {
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.read-info-header strong {
    color: #1e293b;
    font-size: 14px;
}

.read-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px;
    background: white;
    border-radius: 6px;
    border: 1px solid #e2e8f0;
}

.info-item label {
    font-size: 12px;
    color: #64748b;
    font-weight: 600;
}

.info-item span {
    font-size: 13px;
    color: #1e293b;
}

.device-link {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 13px;
}

.device-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

/* 历史记录页脚 */
.history-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e5e7eb;
    flex-wrap: wrap;
    gap: 10px;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 44px;
    height: 22px;
    background: #d1d5db;
    border-radius: 11px;
    transition: background-color 0.3s;
}

.toggle-slider:before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: #10b981;
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

.toggle-label {
    font-size: 13px;
    color: #475569;
    font-weight: 500;
}

.refresh-hint {
    font-size: 13px;
    color: #64748b;
    font-weight: 500;
}

/* 刷新按钮动画 */
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spinner {
    animation: spin 1s linear infinite;
}

/* 特性卡片样式 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 25px 0;
}

.feature-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-3px);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 16px;
    color: #2c3e50;
    margin-bottom: 8px;
}

.feature-card p {
    color: #7f8c8d;
    font-size: 13px;
    line-height: 1.5;
}

/* 介绍区域 */
.intro-section {
    text-align: center;
    padding: 30px 15px;
    background: white;
    border-radius: 12px;
    margin: 25px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.intro-section h2 {
    font-size: 24px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.intro-section p {
    font-size: 15px;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto 25px;
    line-height: 1.6;
}

/* 协议区域 */
.terms-section {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 3px solid #3498db;
}

.terms-section h3 {
    color: #2c3e50;
    margin-bottom: 12px;
    font-size: 16px;
}

.terms-section p {
    color: #495057;
    margin-bottom: 8px;
    line-height: 1.5;
    font-size: 14px;
    padding-left: 8px;
}

/* 捐赠区域 */
.donation-section {
    text-align: center;
    padding: 25px 15px;
    background: white;
    border-radius: 12px;
    margin: 30px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border: 1px solid #e0e0e0;
}

.donation-section h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 12px;
}

.donation-section p {
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 40px 15px;
    color: #94a3b8;
}

.empty-state i {
    font-size: 36px;
    margin-bottom: 15px;
    color: #cbd5e1;
}

.empty-state p {
    font-size: 15px;
    margin-bottom: 12px;
}

.tooltip {
    position: relative;
    display: inline-block;
    cursor: help;
    font-size: 13px;
    color: #94a3b8;
}

.tooltip .tooltip-text {
    visibility: hidden;
    width: 180px;
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 8px;
    border-radius: 6px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
    font-weight: normal;
}

.tooltip:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

/* 移动端菜单 */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: white;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-header {
    padding: 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-menu-header h3 {
    font-size: 18px;
    color: #2c3e50;
}

.close-mobile-menu {
    background: transparent;
    border: none;
    font-size: 20px;
    color: #7f8c8d;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-links {
    padding: 20px;
}

.mobile-menu-links a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    color: #2c3e50;
    text-decoration: none;
    font-size: 15px;
    border-bottom: 1px solid #f0f2f5;
    transition: color 0.3s ease;
}

.mobile-menu-links a:last-child {
    border-bottom: none;
}

.mobile-menu-links a:hover {
    color: #3498db;
}

.mobile-menu-links a i {
    width: 20px;
    text-align: center;
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    margin-bottom: 15px;
    border-bottom: 1px solid #f0f2f5;
}

.mobile-user-info i {
    font-size: 24px;
    color: #3498db;
}

.mobile-user-info span {
    font-size: 15px;
    color: #2c3e50;
    font-weight: 500;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header {
        padding: 12px 15px;
    }
    
    .logo h1 {
        font-size: 16px;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .mobile-menu-overlay.active {
        display: block;
    }
    
    .mobile-menu.active {
        display: block;
    }
    
    .card {
        padding: 15px;
    }
    
    .card h2 {
        font-size: 17px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .feature-card {
        padding: 15px;
    }
    
    .intro-section {
        padding: 20px 12px;
    }
    
    .intro-section h2 {
        font-size: 20px;
    }
    
    .intro-section p {
        font-size: 14px;
    }
    
    .history-header-row {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    
    .history-controls {
        justify-content: space-between;
    }
    
    .search-group input {
        padding-right: 90px;
    }
    
    .clear-search-btn {
        right: 110px;
    }
    
    .qq-info-content {
        flex-direction: column;
        gap: 12px;
    }
    
    .qq-avatar {
        align-self: center;
        margin-top: 10px;
    }
    
    .loading-qq {
        width: 50px;
        height: 50px;
    }
    
    .read-info-grid {
        grid-template-columns: 1fr;
    }
    
    .history-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .history-list {
        max-height: 400px;
    }
    
    .donation-section {
        padding: 20px 12px;
    }
    
    .donation-section h3 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 8px;
    }
    
    .logo {
        gap: 8px;
    }
    
    .logo img {
        width: 32px;
        height: 32px;
    }
    
    .logo h1 {
        font-size: 15px;
    }
    
    .card {
        padding: 12px;
    }
    
    .card h2 {
        font-size: 16px;
        margin-bottom: 15px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 8px 10px;
        font-size: 13px;
    }
    
    .recipient-type-option {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .btn {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .history-item {
        padding: 12px;
    }
    
    .history-content {
        padding: 10px;
        font-size: 13px;
    }
    
    .status-badge {
        padding: 3px 8px;
        font-size: 11px;
    }
    
    .qq-info-table {
        padding: 12px;
    }
    
    .qq-info-content table td {
        font-size: 12px;
        padding: 6px 0;
    }
    
    .qq-avatar {
        width: 50px;
        height: 50px;
    }
    
    .loading-qq {
        width: 40px;
        height: 40px;
    }
    
    .loading-qq .fa-spinner {
        font-size: 20px;
    }
}

/* 打印样式 */
@media print {
    .header,
    .btn-group,
    .search-form,
    .history-footer,
    .donation-section,
    .mobile-menu-btn,
    .mobile-menu {
        display: none !important;
    }
    
    .container {
        max-width: 100%;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}