/* ========== 3D模型容器及切换按钮样式（古风适配） ========== */
#model-container {
    position: relative;
    overflow: hidden;
}

.model-switch-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 48px;
    background: rgba(45, 35, 28, 0.75);
    border: 1px solid #C88F5E;
    border-radius: 6px;
    color: #EADABC;
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    line-height: 46px;
    cursor: pointer;
    z-index: 20;
    transition: all 0.2s ease;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    font-family: "宋体", "SimHei", monospace;
    user-select: none;
}

.model-switch-btn:hover {
    background: rgba(100, 70, 50, 0.9);
    border-color: #D8A66B;
    color: #FFF2E0;
    transform: translateY(-50%) scale(1.05);
}

.btn-left {
    left: 12px;
}

.btn-right {
    right: 12px;
}

.model-status {
    position: absolute;
    bottom: 10px;
    right: 12px;
    background: rgba(0,0,0,0.6);
    color: #D9C6A7;
    font-size: 11px;
    padding: 2px 10px;
    border-radius: 20px;
    border-left: 2px solid #C88F5E;
    pointer-events: none;
    z-index: 20;
    font-family: monospace;
    backdrop-filter: blur(2px);
}