:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --accent-primary: #3b82f6;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-error: #ef4444;
    --accent-info: #3b82f6;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #475569;
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 4px;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #1e3a8a 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-primary), #06b6d4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
}

.header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.nav-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.nav-tab {
    padding: 12px 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

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

.main-content {
    position: relative;
}

.page-content {
    display: none;
}

.page-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.welcome-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.info-box {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-primary);
}

.info-box h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.info-box ul {
    list-style: none;
}

.info-box li {
    padding: 8px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.info-box li:last-child {
    border-bottom: none;
}

.form-group {
    margin-bottom: 20px;
}

.file-upload-wrapper {
    position: relative;
}

.file-upload-input {
    display: none;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 150px;
}

.file-upload-label:hover {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.05);
    transform: translateY(-2px);
}

.file-upload-icon {
    font-size: 3rem;
    margin-bottom: 12px;
    opacity: 0.8;
}

.file-upload-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.file-upload-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.file-upload-wrapper.has-file .file-upload-label {
    border-color: var(--accent-success);
    background: rgba(16, 185, 129, 0.05);
}

.file-upload-wrapper.has-file .file-upload-text::after {
    content: ' ✓';
    color: var(--accent-success);
}

.form-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-control,
.form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.color-options {
    display: flex;
    gap: 12px;
}

.color-btn {
    width: 40px;
    height: 40px;
    border: 3px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.color-btn:hover {
    transform: scale(1.1);
}

.color-btn.active {
    border-color: white;
    box-shadow: 0 0 0 2px var(--accent-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-item {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-success));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
}

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

.progress-section {
    margin-bottom: 20px;
}

.progress-section h3 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.progress-container {
    margin-bottom: 15px;
    position: relative;
}

.progress-bar-outer {
    width: 100%;
    height: 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 2px solid var(--accent-primary);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.progress-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), #06b6d4, var(--accent-success));
    background-size: 200% 100%;
    border-radius: 8px;
    transition: width 0.4s ease;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.progress-text {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-top: 8px;
    text-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-primary), #2563eb);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.5);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: #2d3748;
    border-color: var(--accent-primary);
}

.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--accent-success);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    transform: translateX(calc(100% + 40px));
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 500px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.notification.show {
    transform: translateX(0);
}

/* 区块化设置 */
.block-settings {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 20px 0;
}

.block-settings h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 改进的开关样式 */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.checkbox-label:hover {
    background: rgba(59, 130, 246, 0.1);
}

.checkbox-label input[type="checkbox"] {
    appearance: none;
    width: 44px;
    height: 24px;
    background: #475569;
    border-radius: 12px;
    position: relative;
    cursor: pointer;
    transition: background-color 0.3s;
    flex-shrink: 0;
}

.checkbox-label input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: transform 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--accent-primary);
}

.checkbox-label input[type="checkbox"]:checked::before {
    transform: translateX(20px);
}

.preview-text {
    color: var(--text-muted);
    font-size: 1rem;
}

.contact-box {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(5px);
    border-left: 4px solid var(--accent-primary);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-primary), #06b6d4);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.contact-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-detail {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 6px;
}

.contact-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.contact-link {
    display: inline-block;
    margin-top: 8px;
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--accent-primary), #06b6d4);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.contact-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.split-result {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-success);
}

.split-result h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.split-info {
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.split-grid {
    display: grid;
    gap: 10px;
    max-height: 600px;
    overflow-y: auto;
    padding: 10px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
}

.split-item {
    position: relative;
    width: 100%;
    padding-top: 0;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    min-height: 150px;
}

.split-item:hover {
    transform: scale(1.02);
    border-color: var(--accent-primary);
    z-index: 10;
}

.split-item canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.split-item .download-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: rgba(59, 130, 246, 0.9);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.3s ease;
    z-index: 20;
    white-space: nowrap;
}

.split-item:hover .download-btn {
    transform: translate(-50%, -50%) scale(1);
}

.split-item .download-btn:hover {
    background: rgba(37, 99, 235, 1);
}

.preview-section {
    margin-bottom: 20px;
}

.mc-preview-container {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.mc-preview-box {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 15px;
}

.mc-preview-box h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

#original-canvas,
#converted-canvas {
    width: 100%;
    height: auto;
    min-height: 250px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    display: block;
}

.radio-group {
    display: flex;
    gap: 20px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-primary);
    cursor: pointer;
}

.radio-label input[type="radio"] {
    cursor: pointer;
}

.output-section {
    margin-top: 20px;
}

.output-section h3 {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.output-textarea {
    width: 100%;
    min-height: 250px;
    background: #1e1e1e;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: #d4d4d4;
    padding: 15px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    resize: vertical;
    line-height: 1.5;
}

/* 自定义滚动条 */
.output-textarea::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

.output-textarea::-webkit-scrollbar-track {
    background: rgba(30, 30, 30, 0.5);
    border-radius: 6px;
}

.output-textarea::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--accent-primary), #06b6d4);
    border-radius: 6px;
    border: 2px solid rgba(30, 30, 30, 0.5);
}

.output-textarea::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, #06b6d4, var(--accent-success));
}

.output-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.block-settings {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 20px 0;
}

.block-settings h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.coord-inputs {
    margin-top: 10px;
}

.coord-inputs .form-control {
    margin-right: 10px;
}

@media (max-width: 768px) {
    body {
        padding: 12px;
    }

    .header h1 {
        font-size: 1.6rem;
    }

    .header p {
        font-size: 0.85rem;
    }

    .header {
        margin-bottom: 16px;
        padding-bottom: 14px;
    }

    .card {
        padding: 16px;
    }

    .card-title {
        font-size: 1.2rem;
        margin-bottom: 14px;
    }

    .welcome-text {
        font-size: 0.85rem;
        margin-bottom: 14px;
    }

    .nav-tabs {
        flex-wrap: wrap;
        gap: 6px;
        margin-bottom: 16px;
    }

    .nav-tab {
        flex: 1;
        min-width: 80px;
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    /* 预览图片垂直堆叠 */
    .mc-preview-container {
        flex-direction: column;
        gap: 12px;
        margin: 12px 0;
    }

    .mc-preview-box {
        padding: 10px;
    }

    #original-canvas,
    #converted-canvas {
        min-height: 180px;
    }

    /* 按钮组自适应换行 */
    .button-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .button-group .btn {
        flex: 1 1 auto;
        min-width: 0;
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    /* 表单紧凑化 */
    .form-group {
        margin-bottom: 14px;
    }

    .form-control,
    .form-select {
        padding: 10px 12px;
        font-size: 0.95rem;
    }

    .form-label {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }

    /* 单选按钮组换行 */
    .radio-group {
        flex-wrap: wrap;
        gap: 12px;
    }

    .radio-label {
        font-size: 0.9rem;
    }

    /* 区块化设置 */
    .block-settings {
        padding: 14px;
        margin: 14px 0;
    }

    .block-settings .form-control {
        max-width: 100% !important;
        width: 100% !important;
        display: block !important;
    }

    .block-settings h3 {
        font-size: 1rem;
        margin-bottom: 12px;
    }

    /* 坐标输入垂直排列 */
    .coord-inputs .form-control {
        display: block !important;
        width: 100% !important;
        max-width: 100% !important;
        margin-bottom: 8px;
    }

    /* 文件上传区域 */
    .file-upload-label {
        padding: 24px 14px;
        min-height: 120px;
    }

    .file-upload-icon {
        font-size: 2.2rem;
        margin-bottom: 8px;
    }

    .file-upload-text {
        font-size: 0.9rem;
    }

    /* 输出区域 */
    .output-textarea {
        min-height: 180px;
        font-size: 0.8rem;
        padding: 10px;
    }

    /* 切割网格单列 */
    .split-grid {
        grid-template-columns: 1fr;
        max-height: 400px;
    }

    .split-item {
        min-height: 100px;
    }

    .split-result {
        padding: 14px;
    }

    /* 通知栏 */
    .notification {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
        padding: 12px 16px;
        font-size: 0.9rem;
        transform: translateY(calc(-100% - 20px));
    }

    .notification.show {
        transform: translateY(0);
    }

    /* 联系信息 */
    .contact-box {
        gap: 12px;
        margin-bottom: 14px;
    }

    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 16px 14px;
        gap: 12px;
    }

    .contact-item:hover {
        transform: none;
        border-left: none;
        border-bottom: 3px solid var(--accent-primary);
    }

    .contact-icon {
        margin: 0;
        width: 44px;
        height: 44px;
        font-size: 1.3rem;
    }

    .contact-content {
        width: 100%;
    }

    .contact-content h3 {
        font-size: 0.95rem;
        margin-bottom: 4px;
    }

    .contact-detail {
        font-size: 0.85rem;
        word-break: break-all;
    }

    .contact-desc {
        font-size: 0.8rem;
    }

    .contact-link {
        display: block;
        text-align: center;
        margin-top: 10px;
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* 弹窗全屏 */
    .modal-content {
        width: 95%;
        max-height: 95vh;
        border-radius: var(--radius-md);
    }

    .modal-header {
        padding: 14px 16px;
    }

    .modal-header h3 {
        font-size: 1rem;
    }

    .modal-body {
        padding: 12px 16px;
    }

    .modal-hint {
        font-size: 0.8rem;
        padding: 10px 14px;
    }

    .modal-footer {
        padding: 12px 16px;
        gap: 8px;
    }

    .modal-footer .btn {
        flex: 1;
        padding: 10px 14px;
        font-size: 0.9rem;
    }

    /* 统计网格 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .stat-item {
        padding: 14px;
    }

    /* 进度区域 */
    .progress-section {
        margin-bottom: 14px;
    }

    /* 信息框 */
    .info-box {
        padding: 14px;
    }

    /* 显示指令数行自适应 */
    .form-group [style*="inline-block"] {
        max-width: 120px !important;
    }
}

/* 超小屏幕 */
@media (max-width: 400px) {
    body {
        padding: 8px;
    }

    .header h1 {
        font-size: 1.3rem;
    }

    .card {
        padding: 12px;
    }

    .nav-tab {
        min-width: 60px;
        padding: 8px 8px;
        font-size: 0.85rem;
    }

    .button-group .btn {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    #original-canvas,
    #converted-canvas {
        min-height: 140px;
    }
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 860px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.8rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.2s;
}

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

.modal-body {
    padding: 20px 24px;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#preview-canvas {
    width: 100%;
    max-width: 800px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.modal-hint {
    margin-top: 16px;
    padding: 12px 20px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--radius-md);
    color: #fbbf24;
    font-size: 0.9rem;
    text-align: center;
    width: 100%;
    max-width: 800px;
}

.modal-footer {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}