/* 游戏界面样式（由 index.wxss/app.wxss 转换，rpx≈0.5px；棋盘网格用百分比，随尺寸自适应） */

/* 顶部状态栏 */
.game-status {
    width: 100%;
    text-align: center;
    background: #f5f5f5;
    padding: 9px 12px;
}
.status-text { font-size: 16px; color: #333; }
.extra-moves { font-size: 14px; color: #666; margin-left: 10px; }

/* 棋手行 */
.player-box {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    position: relative;
    gap: 10px;
    margin: 6px 0;
    min-height: 46px;
}

/* 左侧（悔棋/难度）与右侧（设置）按钮 */
.undo-button {
    position: absolute;
    left: 0;
    padding: 5px;
    border-radius: 5px;
    font-size: 14px;
    width: 100px;
    border: 1px solid #ccc;
}
.ai-setting-button {
    position: absolute;
    right: 0;
    padding: 5px;
    font-size: 14px;
    border-radius: 5px;
    width: 100px;
    border: 1px solid #ccc;
}

.piece-box {
    width: 75px;
    height: 45px;
    border-radius: 50px;
    border: 1px solid #000;
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 0 10px;
    position: relative;
}
.piece-box .piece {
    width: 30px;
    height: 30px;
    position: static;
    transform: none;
}
.piece-box .piece-count { font-size: 12px; color: #666; }
.black-box { background: #ffffff; }
.white-box { background: #e0e0e0; }

/* 棋盘容器 */
.board-container {
    position: relative;
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 棋盘 */
.board {
    --board: min(90vmin, 360px);
    width: var(--board);
    height: var(--board);
    position: relative;
    background: #f5f5f5;
    margin: 16px 0;
    touch-action: none; /* 让指针拖动顺畅，禁用默认手势 */
    z-index: 1;
}

/* 未开始时的蒙版 */
.board-overlay {
    position: absolute;
    top: -5%;
    bottom: -5%;
    left: -5%;
    right: -5%;
    background: rgba(245, 245, 245, 0.85);
    z-index: 2;
    pointer-events: none;
}

.horizontal-lines, .vertical-lines {
    position: absolute;
    inset: 0;
}
.horizontal-line {
    position: absolute;
    width: 100%;
    height: 1px;
    background: #000;
}
.vertical-line {
    position: absolute;
    height: 100%;
    width: 1px;
    background: #000;
}

/* 交叉点：作为棋子的居中锚点（按百分比绝对定位） */
.intersection {
    position: absolute;
    transform: translate(-50%, -50%);
    width: calc(var(--board) * 0.14);
    height: calc(var(--board) * 0.14);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.piece {
    width: calc(var(--board) * 0.1);
    height: calc(var(--board) * 0.1);
    border-radius: 50%;
    z-index: 3;
}
.piece.black { background: #000000; }
.piece.white { background: #ffffff; border: 1px solid #000000; }

/* 阵型棋子黄框（外部边框，不影响棋子尺寸） */
.piece.formation-border {
    box-shadow: 0 0 0 3px #ffcc00;
}

/* 白色棋子形成阵型时，去掉原有的黑色边框，黄色边框改为1px（和原黑色边框一样粗） */
.piece.white.formation-border {
    border: none;
    box-shadow: 0 0 0 1px #ffcc00;
}

/* 闪烁动画（落子/移动/吃子后，结束触发 onAnimationEnd 推进流程） */
.flash { animation: flash 1s 3; }
@keyframes flash {
    0% { opacity: 1; }
    50% { opacity: 0.3; }
    100% { opacity: 1; }
}

/* 箭头指示当前行动方 */
.arrow-button {
    width: 35px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    position: absolute;
    left: calc(50% - 70px);
    color: #000;
    font-weight: bolder;
    font-size: larger;
}
.arrow-button.active { opacity: 1; }

/* 悬浮开始按钮（CSS 播放三角） */
.floating-start-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 65px;
    height: 65px;
    background: #ffffff;
    border: 3px solid #000000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4;
    padding: 0;
}
.floating-start-button::before {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 15px 0 15px 22px;
    border-color: transparent transparent transparent #000000;
    margin-left: 4px;
}

/* 底部控制区 */
.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    width: 100%;
    padding: 6px 10px 4px;
}
.control-button {
    padding: 6px 14px;
    font-size: 14px;
    border-radius: 4px;
    border: 1px solid #ccc;
    white-space: nowrap;
    transition: all 0.2s ease;
}
.control-button:active { transform: translateY(1px); opacity: 0.8; }
.timer {
    min-width: 60px;
    text-align: center;
    padding: 6px 12px;
    font-size: 14px;
    color: #333;
}

/* 规则浮层条目 */
.rule-item {
    margin-bottom: 10px;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
}

/* 设置浮层表单 */
.form-item { margin-bottom: 16px; }
.form-item > .form-label { display: block; margin-bottom: 8px; font-size: 14px; color: #333; font-weight: bold; }
.radio-row { display: flex; flex-wrap: wrap; gap: 16px; }
.radio-row label { font-size: 14px; color: #333; display: inline-flex; align-items: center; gap: 4px; cursor: pointer; }

/* 窄屏手机优化（高宽比 > 1.9）：适度缩小间距 */
@media (max-aspect-ratio: 10/19) {
    .game-status {
        padding: 6px 10px;
    }

    .player-box {
        margin: 4px 0;
    }

    .board {
        margin: 10px 0;
    }

    .controls {
        padding: 4px 10px;
    }
}