.xmtupian-container {
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.xmtupian-workspace {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.xmtupian-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    align-items: center;
}

.xmtupian-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    user-select: none;
}

.xmtupian-btn-secondary {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.xmtupian-btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 87, 108, 0.4);
}

.xmtupian-btn-success {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: white;
}

.xmtupian-btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 172, 254, 0.4);
}

.xmtupian-btn-danger {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    color: white;
}

.xmtupian-btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(250, 112, 154, 0.4);
}

.xmtupian-btn-small {
    padding: 8px 16px;
    font-size: 13px;
    background: #f5f5f5;
    color: #333;
}

.xmtupian-btn-small:hover {
    background: #e0e0e0;
}

.xmtupian-canvas-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f8f9fa;
    border-radius: 12px;
    box-sizing: border-box;
}

.xmtupian-canvas-area {
    position: relative;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.xmtupian-canvas-area.has-placeholder {
    flex-direction: column;
}

.xmtupian-canvas-area.has-canvas {
    flex-direction: row;
}

#xmtupian_main_canvas {
    display: block;
    max-width: 100%;
    height: auto;
    cursor: move;
}

.xmtupian-placeholder {
    width: 100%;
    height: 100%;
    min-height: 360px;
    text-align: center;
    color: #999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f8f9fa;
    border: 2px dashed #ddd;
    border-radius: 12px;
    box-sizing: border-box;
}

.xmtupian-placeholder:hover {
    background: #e8f4f8;
    border-color: #667eea;
    color: #667eea;
}

.xmtupian-placeholder-icon {
    font-size: 80px;
    margin-bottom: 20px;
    opacity: 0.8;
}

.xmtupian-placeholder-text {
    font-size: 18px;
    font-weight: 500;
}

.xmtupian-control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.xmtupian-control-group label {
    font-size: 14px;
    font-weight: 500;
    color: #555;
    min-width: 50px;
}

.xmtupian-control-group input[type="range"] {
    width: 120px;
    height: 6px;
    -webkit-appearance: none;
    background: linear-gradient(to right, #667eea, #764ba2);
    border-radius: 3px;
    outline: none;
}

.xmtupian-control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: white;
    border: 2px solid #667eea;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.xmtupian-control-group span {
    font-size: 13px;
    color: #666;
    min-width: 45px;
}

.xmtupian-layers {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 16px;
}

.xmtupian-layers-title {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.xmtupian-layers-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.xmtupian-layer-item {
    padding: 8px 12px;
    background: white;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
}

.xmtupian-layer-item:hover {
    background: #f0f0f0;
}

.xmtupian-layer-item.active {
    border-color: #667eea;
    background: #f0f4ff;
}

.xmtupian-content-section {
    margin-top: 40px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
}

.xmtupian-section-title {
    font-size: 24px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
    margin-top: 32px;
    padding-bottom: 8px;
    border-bottom: 2px solid #667eea;
}

.xmtupian-section-title:first-child {
    margin-top: 0;
}

.xmtupian-section-text {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 24px;
}

.xmtupian-feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
}

.xmtupian-feature-list li {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    padding: 12px 0;
    padding-left: 30px;
    position: relative;
}

.xmtupian-feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold;
    font-size: 18px;
}

.xmtupian-use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.xmtupian-use-case {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.xmtupian-use-case h3 {
    font-size: 18px;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 12px;
}

.xmtupian-use-case p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

.xmtupian-steps-list {
    padding-left: 30px;
    margin-bottom: 24px;
}

.xmtupian-steps-list li {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    padding: 8px 0;
    list-style: auto;
}

.xmtupian-faq {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.xmtupian-faq-item {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.xmtupian-faq-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
}

.xmtupian-faq-item p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

.xmtupian-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.xmtupian-loading-content {
    background: white;
    padding: 40px 60px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.xmtupian-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: xmtupian-spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes xmtupian-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.xmtupian-loading-text {
    font-size: 18px;
    font-weight: 500;
    color: #2c3e50;
}

@media (max-width: 768px) {
    .xmtupian-toolbar {
        gap: 8px;
    }
    
    .xmtupian-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .xmtupian-canvas-area {
        min-height: 300px;
    }
    
    .xmtupian-control-group input[type="range"] {
        width: 80px;
    }
    
    .xmtupian-controls {
        padding: 12px;
        gap: 12px;
    }
    
    .xmtupian-content-section {
        margin-top: 20px;
        padding: 15px;
    }
    
    .xmtupian-section-title {
        font-size: 20px;
    }
    
    .xmtupian-section-text {
        font-size: 14px;
    }
    
    .xmtupian-feature-list li {
        font-size: 14px;
        padding: 8px 0;
        padding-left: 25px;
    }
    
    .xmtupian-use-cases {
        grid-template-columns: 1fr;
    }
    
    .xmtupian-use-case {
        padding: 15px;
    }
    
    .xmtupian-use-case h3 {
        font-size: 16px;
    }
    
    .xmtupian-use-case p {
        font-size: 13px;
    }
    
    .xmtupian-steps-list li {
        font-size: 14px;
    }
    
    .xmtupian-faq {
        grid-template-columns: 1fr;
    }
    
    .xmtupian-faq-item {
        padding: 15px;
    }
    
    .xmtupian-faq-item h3 {
        font-size: 15px;
    }
    
    .xmtupian-faq-item p {
        font-size: 13px;
    }
}