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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #6b7280;
    --secondary-hover: #4b5563;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f9fafb;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 20px;
    display: flex;
    gap: 30px;
}

@media (max-width: 1200px) {
    .container {
        margin-left: 170px; /* 保持左边距 */
        max-width: calc(100% - 170px); /* 确保容器不会超出视口 */
    }
}

@media (max-width: 1024px) {
    body {
        flex-direction: column;
        gap: 20px;
        padding-left: 20px;
    }
    
    .container {
        margin-left: 0; /* 移除左边距，因为进度指示器已变为相对定位 */
    }
    
    .progress-indicator {
        position: relative;
        left: auto;
        top: auto;
        transform: none;
        width: 100%;
        flex-direction: row;
        justify-content: center;
        height: auto;
    }
    
    .progress-steps {
        flex-direction: row;
        gap: 0;
        padding: 10px 0;
    }
    
    .progress-step {
        padding: 0 15px;
    }
    
    .progress-step::after {
        left: 36px;
        top: 18px;
        width: calc(100% - 20px);
        height: 3px;
        transform: none;
    }
    
    .progress-step:last-child::after {
        display: none;
    }
}

.progress-indicator {
    position: fixed;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    height: fit-content;
    width: 120px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 100;
}

.progress-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    z-index: 2;
    padding: 10px 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: relative;
    padding: 15px 0;
}

/* 步骤之间的连接线 */
.progress-step::after {
    content: '';
    position: absolute;
    left: 18px;
    top: 38px;
    width: 3px;
    height: calc(100% - 20px);
    background: linear-gradient(to bottom, #e5e7eb, #e5e7eb);
    z-index: 0;
    transition: background 0.5s ease;
}

.progress-step:last-child::after {
    display: none;
}

.progress-step.completed::after {
    background: linear-gradient(to bottom, var(--primary-color), var(--primary-color));
}

.progress-step.active::after {
    background: linear-gradient(to bottom, var(--primary-color), #e5e7eb);
}

.step-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e5e7eb 0%, #d1d5db 100%);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 3px solid #f3f4f6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
}

.progress-step.active .step-circle {
    background: linear-gradient(135deg, var(--primary-color) 0%, #6366f1 100%);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15), 0 4px 12px rgba(79, 70, 229, 0.3);
    transform: scale(1.05);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15), 0 4px 12px rgba(79, 70, 229, 0.3);
    }
    50% {
        box-shadow: 0 0 0 6px rgba(79, 70, 229, 0.1), 0 4px 12px rgba(79, 70, 229, 0.3);
    }
}

.progress-step.completed .step-circle {
    background: linear-gradient(135deg, var(--primary-color) 0%, #6366f1 100%);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.2);
    position: relative;
}

.progress-step.completed .step-circle::before {
    content: '✓';
    position: absolute;
    font-size: 1rem;
    font-weight: bold;
}

.progress-step.completed .step-circle {
    font-size: 0;
}

.step-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    white-space: nowrap;
    transition: all 0.3s ease;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
    background: transparent;
}

.progress-step.active .step-label {
    color: var(--primary-color);
    font-weight: 700;
    background: rgba(79, 70, 229, 0.1);
    transform: translateX(2px);
}

.progress-step.completed .step-label {
    color: var(--text-primary);
    font-weight: 600;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    flex: 1;
    margin-left: 170px; /* 为左侧固定进度指示器留出空间 (120px + 20px + 30px gap) */
    transition: margin-left 0.3s ease;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 30px 0;
}

.studio-meta {
    margin-top: 16px;
    display: inline-flex;
    align-items: center;
    gap: 18px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid #e9ecf5;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(4px);
    flex-wrap: wrap;
    justify-content: center;
}

.studio-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 4px 8px;
}

.studio-logo {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.studio-tagline {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    letter-spacing: 0.5px;
}

.studio-social {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 8px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.studio-social .social-label {
    font-weight: 600;
    color: var(--text-primary);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-radius: var(--radius);
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.social-link:hover {
    border-color: var(--primary-color);
    background: rgba(79, 70, 229, 0.08);
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.12);
}

.social-icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-icon svg {
    width: 18px;
    height: 18px;
}

/* Bilibili 抖动动画 */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10% { transform: translateX(-2px) rotate(-1deg); }
    20% { transform: translateX(2px) rotate(1deg); }
    30% { transform: translateX(-2px) rotate(-1deg); }
    40% { transform: translateX(2px) rotate(1deg); }
    50% { transform: translateX(-1px) rotate(-0.5deg); }
    60% { transform: translateX(1px) rotate(0.5deg); }
    70% { transform: translateX(-1px) rotate(-0.5deg); }
    80% { transform: translateX(1px) rotate(0.5deg); }
    90% { transform: translateX(0); }
}

#bilibiliLink.shake {
    animation: shake 0.5s ease-in-out;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.footer {
    margin-top: 60px;
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.usage-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-item span {
    font-weight: 600;
    color: var(--primary-color);
}

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

/* 上传区域 */
.upload-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.video-player-wrapper {
    display: none;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    margin-top: 20px;
    box-shadow: var(--shadow-sm);
}

.uploaded-video {
    width: 100%;
    max-height: 360px;
    border-radius: var(--radius);
    background: black;
}

.info-item.info-action {
    margin-left: auto;
}

.info-item.info-action .btn {
    padding: 6px 12px;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-color);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: #f3f4f6;
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: #eef2ff;
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    color: var(--text-secondary);
    stroke-width: 1.5;
}

.upload-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

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

.video-info {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.info-value {
    color: var(--text-primary);
}

/* 控制区域 */
.control-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 25px 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.frame-rate-control {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.frame-rate-control label {
    font-weight: 600;
    color: var(--text-primary);
}

.frame-rate-input {
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    width: 120px;
    transition: border-color 0.3s ease;
}

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

.frame-rate-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-left: 8px;
    font-style: italic;
}

/* 按钮样式 */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

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

.btn-primary:active {
    transform: translateY(0);
}

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.9rem;
}

.btn-icon {
    padding: 10px;
    width: 44px;
    height: 44px;
    background: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-icon svg {
    width: 20px;
    height: 20px;
}

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

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

/* 帧网格 */
.frames-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.frames-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.frames-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

.frames-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.frame-item {
    position: relative;
    background: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.frame-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.frame-item.selected {
    border-color: var(--primary-color);
}

.frame-checkbox-wrapper {
    position: absolute;
    top: 8px;
    right: 8px;
    z-index: 10;
}

.frame-checkbox {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.frame-thumbnail {
    width: 100%;
    height: 100px;
    object-fit: cover;
    display: block;
    background: #f3f4f6;
}

.frame-label {
    padding: 1px;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    background: white;
}

/* 预览区域 */
.preview-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

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

.preview-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.preview-container {
    margin-bottom: 30px;
}

.preview-image-wrapper {
    position: relative;
    background: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border-color);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-image {
    max-width: 100%;
    max-height: 600px;
    display: block;
    object-fit: contain;
}

.preview-frame-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 12px 20px;
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
}

.preview-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.preview-slider-container {
    width: 100%;
}

.preview-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.preview-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.preview-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

.preview-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.preview-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

.preview-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.preview-settings {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.speed-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.speed-select {
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.95rem;
    cursor: pointer;
    background: white;
    transition: border-color 0.3s ease;
}

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

/* 加载状态 */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* 抠图模块 */
.cutout-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.cutout-header {
    margin-bottom: 20px;
}

.cutout-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.cutout-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cutout-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.cutout-option-row {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.watermark-ratio-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.background-color-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-color);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

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

.bg-color-preview {
    width: 30px;
    height: 30px;
    border-radius: 4px;
    border: 2px solid var(--border-color);
    background: white;
}

.bg-color-code {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 600;
}

.output-resolution-control {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.preset-resolution-display {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.preset-resolution-display span:first-child {
    margin: 0 2px;
}

.preset-resolution-select {
    padding: 6px 10px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    background: white;
    transition: border-color 0.3s ease;
}

.preset-resolution-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.custom-resolution-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.resolution-input {
    padding: 6px 10px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.9rem;
    width: 80px;
    transition: border-color 0.3s ease;
}

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

.output-resolution-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-left: 10px;
    border-left: 1px solid var(--border-color);
}

.resolution-separator {
    color: var(--text-secondary);
    margin: 0 4px;
}

.resolution-text {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
}

.resolution-text .resolution-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.resolution-text .resolution-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

/* Spritesheet模块 */
.spritesheet-section {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow-md);
}

.spritesheet-header {
    margin-bottom: 20px;
}

.spritesheet-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.spritesheet-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.spritesheet-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.spritesheet-preview {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.spritesheet-preview h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.spritesheet-info {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 15px 20px;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.spritesheet-info-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.spritesheet-info-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.spritesheet-info-value {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: 'Courier New', monospace;
}

.spritesheet-preview-container {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 20px;
    border: 2px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: auto;
}

.spritesheet-preview-img {
    max-width: 100%;
    max-height: 600px;
    display: block;
    object-fit: contain;
}

.watermark-ratio-control label {
    font-weight: 500;
    color: var(--text-primary);
}

.watermark-ratio-input {
    padding: 6px 10px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.9rem;
    width: 60px;
    transition: border-color 0.3s ease;
}

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

.cutout-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.cutout-preview {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.cutout-preview h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.cutout-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.cutout-preview-item {
    position: relative;
    background: var(--bg-color);
    border-radius: var(--radius);
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.cutout-preview-image {
    width: 100%;
    height: 100px;
    object-fit: contain;
    display: block;
    background: 
        repeating-conic-gradient(#f3f4f6 0% 25%, transparent 0% 50%) 
        50% / 20px 20px;
}

.cutout-preview-label {
    padding: 1px;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    background: white;
}

.resolution-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.resolution-value {
    color: var(--text-primary);
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }

    .frames-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 15px;
    }

    .preview-settings {
        flex-direction: column;
        gap: 15px;
    }

    .frame-rate-control {
        flex-direction: column;
        align-items: stretch;
    }

    .frame-rate-input {
        width: 100%;
    }

    .cutout-options {
        flex-direction: column;
        gap: 15px;
    }

    .cutout-actions {
        flex-direction: column;
    }

    .cutout-actions .btn {
        width: 100%;
    }

    .cutout-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 15px;
    }
}