html, body {
    margin: 0;
    height: 100%;
    overflow: hidden;
    position: relative;
}

#map-container {
    width: 100vw;
    height: 100vh;
    cursor: grab;
    position: relative;
    overflow: hidden;
    touch-action: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    -webkit-overflow-scrolling: touch;
}

/* 地图网格样式 */
.cell {
    position: absolute;
    box-sizing: border-box;
}

.cell.square {
    width: 40px;
    height: 40px;
    background-image: url('../img/unknown.png');
    background-size: cover;
    z-index: 1;
}

.cell.wall {
    background-color: #D9D9D9;
    z-index: 2;
}

.cell.wall.vertical {
    border-left: 1px solid #000;
    border-right: 1px solid #000;
    width: 11px;
    height: 40px;
}

.cell.wall.horizontal {
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
    width: 40px;
    height: 11px;
}

.cell.center {
    cursor: pointer;
    width: 11px;
    height: 11px;
    background-color: #000;
    border: 1px solid #000;
    z-index: 3;
}

/* 附着图层样式 */
.attachment-layer {
    position: absolute;
    inset: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    pointer-events: none;
    z-index: 3;
}