/* Chiikawa主题色 */
:root {
  --chiikawa-pink: #ffb7d5;
  --chiikawa-ping-deep: #ff80ab;
  --chiikawa-blue: #a8d8ff;
  --chiikawa-yellow: #fff4a8;
  --chiikawa-green: #b8e986;
  --chiikawa-bg: #f8f9fa;
  --chiikawa-dark: #5a5a5a;
  --bingo-card-height: 70px; 
  --called-card-width: 60px;   
  --called-card-gap: 12px;    
  --max-visible-cards: 4; /* 最多显示4个卡片 */
}
/* 首页专属样式 */
.home-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-image: url('../photos/chiikawa背景图4.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
}

/* 标题样式 */
.home-title {
    font-size: clamp(3rem, 4vw, 3rem); /* 响应式字体，适配所有屏幕 */
    font-weight: 700;
    color: var(--chiikawa-pink);
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    margin-bottom: 50px;
    text-align: center;
    line-height: 1.2; /* 优化行高 */
    max-width: 100%; /* 防止文字溢出 */
    white-space: normal; /* 默认允许换行，大屏通过媒体查询强制单行 */
}
/* 开始游戏按钮样式 */
.home-btn {
    padding: 15px 40px;
    font-size: 1.2rem;
    border-radius: 30px;
    background: linear-gradient(to right, var(--chiikawa-ping-deep), var(--chiikawa-ping-deep));
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(255, 183, 213, 0.4);
    transition: all 0.3s ease;
    margin: 0 auto; /* 水平居中（需块级元素） */
    display: block; /* 转为块级元素，margin: auto 生效 */
}

.home-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(255, 183, 213, 0.6);
}

.home-character {
    position: absolute;
    z-index: 2;
    pointer-events: none;
    background-size: contain;
    background-repeat: no-repeat;
}

/* 角色样式 */
.character-jiyi-home {
    width: 30%;
    height: 30%;
    top: 50%;
    left: 2%;
    background-image: url('../photos/吉伊.png');
    animation: float 8s infinite ease-in-out;
}

.character-wusaqi-home {
    width: 30%;
    height: 30%;
    top: 10%;
    right: 5%;
    background-image: url('../photos/乌萨奇-背景图.png');
    animation: randomWalk 20s infinite ease-in-out;
}

.character-xiaoba-home {
    width: 30%;
    height: 30%;
    bottom: 5%;
    right: 10%;
    background-image: url('../photos/小八-背景图.png');
    animation: randomWalk 20s infinite ease-in-out;
}

/* 棋盘数量选择样式 */
.board-count-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 10px;
}
/* 隐藏原生单选按钮 */
.board-count-radio {
    display: none;
}
/* 自定义单选按钮样式 */
.board-count-label {
    cursor: pointer;
    padding: 10px 15px;
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--chiikawa-pink);
    font-weight: 500;
    box-shadow: 0 4px 10px rgba(255, 183, 213, 0.3);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}
/* 选中状态样式 */
.board-count-radio:checked + .board-count-label {
    /* background: #ffb7d5; */
    color: var(--chiikawa-pink);
    border-color: var(--chiikawa-ping-deep);
    box-shadow: 0 6px 15px rgba(255, 128, 171, 0.4);
}
/* hover效果 */
.board-count-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(255, 183, 213, 0.5);
}