body { 
    margin: 0; 
    font-family: Arial, sans-serif;
}

canvas { 
    display: block; 
}

#controls {
    position: absolute;
    top: 20px;
    left: -320px; /* 初始隐藏 */
    z-index: 100;
    background: rgba(28, 28, 28, 0.9);
    padding: 20px;
    border-radius: 0 10px 10px 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    color: #ffffff;
    width: 280px;
    transition: left 0.3s ease;
}

#controls.visible {
    left: 0;
}

.toggle-panel {
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(28, 28, 28, 0.9);
    color: white;
    border: none;
    padding: 10px;
    cursor: pointer;
    border-radius: 0 5px 5px 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.toggle-panel:hover {
    background: rgba(40, 40, 40, 0.9);
}

.toggle-icon {
    width: 24px;
    height: 24px;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M3 4h18v2H3V4zm0 7h18v2H3v-2zm0 7h18v2H3v-2z"/></svg>');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    transition: transform 0.3s ease;
}

#controls.visible .toggle-icon {
    transform: rotate(180deg);
}

.panel-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.control-group {
    margin-bottom: 15px;
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: block;
    margin-bottom: 5px;
    color: #cccccc;
    font-size: 14px;
}

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

.control-group input[type="range"] {
    flex: 1;
    height: 5px;
    -webkit-appearance: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    outline: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    background: #4a9eff;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.2s;
}

.control-group input[type="range"]::-webkit-slider-thumb:hover {
    background: #2486ff;
}

.control-group input[type="number"] {
    width: 60px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    padding: 4px 8px;
    color: #ffffff;
    font-size: 13px;
}

.file-input {
    margin-bottom: 20px;
}

.file-input input[type="file"] {
    display: none;
}

.file-input label {
    display: block;
    padding: 10px 15px;
    background: #4a9eff;
    color: white;
    border-radius: 5px;
    cursor: pointer;
    text-align: center;
    transition: background 0.2s;
}

.file-input label:hover {
    background: #2486ff;
}

.file-name {
    margin-top: 8px;
    font-size: 12px;
    color: #cccccc;
    word-break: break-all;
}

.radio-group {
    display: flex;
    gap: 15px;
    margin-top: 5px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    color: #ffffff;
    font-size: 14px;
}

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

.export-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 10px;
}

.export-btn {
    flex: 1;
    min-width: 80px;
    padding: 8px 12px;
    background: #4a9eff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

.export-btn:hover {
    background: #2486ff;
}

.export-btn:active {
    background: #1a76e8;
}

/* 添加导出状态提示样式 */
.export-status {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 10px 20px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border-radius: 4px;
    z-index: 1000;
    display: none;
}

.export-status.show {
    display: block;
    animation: fadeInOut 3s ease-in-out;
}

@keyframes fadeInOut {
    0% { opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { opacity: 0; }
}

.export-info {
    font-size: 12px;
    color: #cccccc;
    margin-bottom: 5px;
}

.export-info-list {
    margin: 0 0 10px 20px;
    padding: 0;
    font-size: 12px;
    color: #cccccc;
}

.export-info-list li {
    margin-bottom: 3px;
}

/* 添加动画控制样式 */
#animation-controls {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.animation-select {
    margin-bottom: 15px;
}

.animation-select select {
    width: 100%;
    padding: 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: 4px;
}

.animation-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.animation-buttons button {
    flex: 1;
    padding: 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.animation-buttons button:hover {
    background: rgba(255, 255, 255, 0.1);
}

.animation-settings {
    margin-top: 10px;
}

.animation-settings .control-row {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    gap: 10px;
}

.animation-settings label {
    flex: 0 0 auto;
    min-width: 80px;
    color: #ccc;
}

.animation-settings input[type="range"] {
    flex: 1;
}

.animation-settings .speed-value {
    flex: 0 0 40px;
    text-align: right;
    color: #ccc;
}

.animation-settings input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
}