/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 春节红金配色 */
    --primary-red: #c41e3a;
    --primary-red-light: #e63946;
    --primary-red-dark: #a71d31;
    --primary-gold: #ffd700;
    --primary-gold-light: #ffed4a;
    --primary-gold-dark: #daa520;
    
    /* 辅助颜色 */
    --bg-color: #1a0a0a;
    --bg-secondary: #2d1810;
    --bg-card: #3d1f15;
    --text-primary: #fff8e7;
    --text-secondary: #d4a574;
    --text-muted: #8b6914;
    
    /* 功能颜色 */
    --success: #4caf50;
    --error: #f44336;
    --warning: #ff9800;
    --info: #2196f3;
    
    /* 阴影和边框 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 0 20px rgba(255, 215, 0, 0.5);
    --border-gold: 2px solid var(--primary-gold);
    --border-red: 2px solid var(--primary-red);
    
    /* 动画时长 */
    --transition-fast: 0.15s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
}

html, body {
    width: 100%;
    height: 100%;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Heiti SC', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
}

body {
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-secondary) 50%, var(--bg-color) 100%);
    min-height: 100vh;
}

/* ==================== 加载界面 ==================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    padding: 2rem;
}

.loading-lantern {
    font-size: 5rem;
    animation: swing 2s ease-in-out infinite;
}

@keyframes swing {
    0%, 100% { transform: rotate(-10deg); }
    50% { transform: rotate(10deg); }
}

.loading-title {
    font-size: 2rem;
    color: var(--primary-gold);
    margin: 1rem 0;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.loading-bar {
    width: 300px;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin: 1.5rem auto;
    border: var(--border-gold);
}

.loading-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-red), var(--primary-gold));
    background-size: 200% 100%;
    animation: loading 1.5s linear infinite;
    border-radius: 4px;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ==================== 游戏容器 ==================== */
.game-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: opacity var(--transition-slow);
}

.game-container.hidden {
    display: none;
}

/* ==================== 顶部导航栏 ==================== */
.game-header {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
    padding: 0.4rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: var(--border-gold);
    box-shadow: var(--shadow-md);
    position: relative;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-center {
    flex: 1;
    text-align: center;
}

.game-title {
    font-size: 1.4rem;
    color: var(--primary-gold);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 2px;
}

/* 玩家头像 */
.player-avatar {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 215, 0, 0.3);
    cursor: pointer; /* 添加手型光标 */
    transition: all 0.3s ease;
}

.player-avatar:hover {
    background: rgba(0, 0, 0, 0.4);
    border-color: var(--primary-gold);
    transform: scale(1.02);
}

.avatar-image {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-red));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    border: 2px solid var(--primary-gold);
}

.player-info {
    display: flex;
    flex-direction: column;
}

.player-name {
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--text-primary);
}

.player-level {
    font-size: 0.75rem;
    color: var(--primary-gold);
}

/* 图标按钮 */
.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-card);
    border: 1px solid var(--primary-gold-dark);
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--primary-red);
    transform: scale(1.05);
    box-shadow: var(--shadow-gold);
}

.btn-icon:active {
    transform: scale(0.95);
}

/* ==================== 游戏状态栏 ==================== */
.game-status-bar {
    background: var(--bg-card);
    padding: 0.4rem 1rem;
    display: flex;
    justify-content: center;
    gap: 2rem;
    border-bottom: 1px solid var(--primary-gold-dark);
    flex-wrap: wrap;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.status-value {
    font-size: 1.1rem;
    font-weight: bold;
    color: var(--primary-gold);
    min-width: 60px;
    text-align: right;
}

.status-value.combo-value {
    color: var(--primary-red-light);
    animation: pulse 0.5s ease-in-out;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* ==================== 主游戏区域 ==================== */
.game-main {
    flex: 1;
    display: flex;
    padding: 0.5rem;
    gap: 1rem;
    overflow: hidden;
}

/* 侧边面板 */
.side-panel {
    width: 240px;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    border: 1px solid var(--primary-gold-dark);
}

.panel-section {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1rem;
}

.section-title {
    font-size: 1rem;
    color: var(--primary-gold);
    margin-bottom: 0.8rem;
    border-bottom: 1px solid var(--primary-gold-dark);
    padding-bottom: 0.5rem;
}

/* 模式按钮 */
.mode-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

#difficulty-buttons {
    margin-bottom: 1rem;
}

.btn-mode {
    padding: 0.7rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--primary-gold-dark);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.btn-mode:hover {
    background: var(--primary-red);
    border-color: var(--primary-gold);
}

.btn-mode.active {
    background: var(--primary-red);
    border-color: var(--primary-gold);
    box-shadow: var(--shadow-gold);
}

/* 统计数据 */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.stat-item {
    background: var(--bg-secondary);
    padding: 0.6rem;
    border-radius: 6px;
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.stat-value {
    font-size: 1rem;
    font-weight: bold;
    color: var(--primary-gold);
}

/* 成就摘要 */
.achievement-summary {
    text-align: center;
}

.achievement-count {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.achieve-total {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.btn-achievements {
    width: 100%;
    padding: 0.6rem;
    background: var(--primary-red);
    border: none;
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-top: 0.5rem;
}

.btn-achievements:hover {
    background: var(--primary-red-light);
    transform: translateY(-2px);
}

/* 控制按钮 */
.control-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.btn-control {
    padding: 0.8rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--primary-gold-dark);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
}

.btn-control:hover {
    background: var(--primary-red);
    border-color: var(--primary-gold);
    transform: translateY(-2px);
}

.btn-control:active {
    transform: translateY(0);
}

.btn-control.btn-restart {
    background: var(--primary-red);
    border-color: var(--primary-gold);
}

/* 福袋进度 */
.lucky-bag-progress {
    margin-bottom: 1rem;
}

.progress-bar {
    height: 20px;
    background: var(--bg-secondary);
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--primary-gold-dark);
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-red));
    width: 0%;
    transition: width var(--transition-normal);
    border-radius: 10px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.unopened-text.has-bags {
    animation: pulse 1s infinite;
    text-shadow: 0 0 5px var(--primary-gold);
}

.lucky-bags-mini {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    background: var(--bg-secondary);
    padding: 0.5rem;
    border-radius: 6px;
}

.mini-lucky-bag {
    width: 100%;
    aspect-ratio: 1;
    background: var(--bg-card);
    border: 1px solid var(--text-muted);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    transition: all var(--transition-fast);
}

.mini-lucky-bag.unlocked {
    background: var(--primary-gold);
    border-color: var(--primary-gold);
    color: var(--bg-color);
    animation: glow 1s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--primary-gold); }
    50% { box-shadow: 0 0 15px var(--primary-gold); }
}

/* 游戏提示 */
.game-tips {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.game-tips p {
    margin-bottom: 0.5rem;
}

/* ==================== 游戏面板区域 ==================== */
.game-board-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center; /* 水平居中 */
    justify-content: center; /* 垂直居中，确保连线计算准确 */
    position: relative;
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1rem;
    border: 2px solid var(--primary-gold-dark);
    min-height: 0; /* 允许flex子项收缩 */
    min-width: 0;
    overflow: hidden; /* 防止出现外部滚动条 */
    gap: 1rem; /* 增加控制栏和游戏盘的间距 */
}

.game-board {
    display: grid;
    gap: 4px;
    background: var(--bg-card);
    padding: 8px;
    border-radius: 8px;
    position: relative;
    z-index: 1;
    /* 修复：使用更精确的尺寸计算，在1000-1270px范围内为面板留出空间 */
    width: clamp(
        200px,
        min(calc(100vw - 500px), calc(100vh - 280px)), /* 关键：100vw - 500px确保左右有250px空间给面板 */
        calc(100% - 16px) /* 最大不超过父容器 */
    );
    height: auto; /* 宽度确定后，高度按aspect-ratio自动计算 */
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 1; /* 保持正方形 */
    margin: 0 auto;
    justify-content: center;
    align-content: center;
    
    /* 禁用内部滚动条，通过父容器控制 */
    overflow: hidden; 
}

/* 针对不同难度的微调 */
.game-board.difficulty-hard {
    gap: 1px; /* 高级难度进一步减小间隙 */
    padding: 2px;
}

/* 针对不同屏幕尺寸的渐进式优化 */
@media (max-height: 1000px) {
    .game-board.difficulty-hard {
        gap: 0;
        padding: 2px;
    }
    
    .difficulty-hard .tile {
        font-size: 0.9rem;
    }
}

@media (max-height: 800px) {
    .game-board.difficulty-hard {
        gap: 0; /* 完全移除间距 */
        padding: 1px; /* 最小化内边距 */
    }
    
    .difficulty-hard .tile {
        font-size: 0.8rem;
    }
}

@media (max-height: 650px) {
    .difficulty-hard .tile {
        font-size: 0.7rem;
        border-width: 0.5px;
    }
}

.game-board.responsive-small {
    gap: 2px;
    padding: 4px;
}

/* 游戏格子 */
.tile {
    /* 移除固定宽高和最小宽高，完全自适应 */
    background: var(--bg-secondary);
    border: 2px solid var(--text-muted);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    font-size: 1.8rem;
    user-select: none;
    width: 100%;
    height: 100%;
    /* 移除 min-width/height，防止撑开 */
}

/* 根据难度动态调整格子内图标大小 */
.difficulty-easy .tile { font-size: 2.2rem; }
.difficulty-medium .tile { font-size: 1.8rem; }
.difficulty-hard .tile { font-size: 1rem; border-width: 1px; border-radius: 2px; }

.tile:hover {
    background: var(--bg-card);
    transform: scale(1.08);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-gold);
    cursor: pointer;
}

.tile:active {
    transform: scale(0.92);
    box-shadow: var(--shadow-lg);
}

.tile.selected {
    transform: scale(1.1);
    border-color: var(--primary-gold);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.6);
    background: var(--bg-card);
    animation: selected-glow 0.5s ease-in-out infinite;
}

@keyframes selected-glow {
    0%, 100% { box-shadow: 0 0 15px rgba(255, 215, 0, 0.6); }
    50% { box-shadow: 0 0 25px rgba(255, 215, 0, 0.8); }
}

.tile.hint {
    animation: hint-pulse 0.8s ease-in-out infinite;
}

@keyframes hint-pulse {
    0%, 100% { border-color: var(--primary-gold); }
    50% { border-color: var(--success); }
}

.tile.matched {
    animation: match-disappear 0.5s ease-out forwards;
}

@keyframes match-disappear {
    0% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
    50% {
        transform: scale(1.2) rotate(180deg);
        opacity: 0.8;
    }
    100% {
        transform: scale(0) rotate(360deg);
        opacity: 0;
    }
}

.tile.empty {
    visibility: hidden;
    pointer-events: none;
    background: transparent;
    border: none;
}

.tile .tile-icon {
    font-size: 2rem;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 连接线画布 */
.line-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

/* ==================== 底部栏 ==================== */
.game-footer {
    background: var(--bg-card);
    padding: 0.6rem 1.5rem;
    text-align: center;
    border-top: 1px solid var(--primary-gold-dark);
}

.footer-content {
    color: var(--primary-gold);
    font-size: 0.9rem;
}

/* ==================== 模态框 ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
    transition: opacity var(--transition-normal);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-card);
    border: var(--border-gold);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 90%;
    max-height: 90%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modal-appear 0.3s ease-out;
}

@keyframes modal-appear {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-header {
    background: linear-gradient(180deg, var(--primary-red), var(--primary-red-dark));
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: var(--border-gold);
}

.modal-title {
    font-size: 1.3rem;
    color: var(--primary-gold);
    margin: 0;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--primary-gold);
    font-size: 1.5rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.btn-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--primary-gold-dark);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* 按钮样式 */
.btn-primary,
.btn-secondary,
.btn-large {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

.btn-primary {
    background: var(--primary-red);
    border: 1px solid var(--primary-gold);
}

.btn-primary:hover {
    background: var(--primary-red-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.btn-secondary {
    background: var(--bg-card);
    border: 1px solid var(--text-muted);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
}

.btn-large {
    width: 100%;
    font-size: 1.1rem;
}

/* ==================== 欢迎界面 ==================== */
.modal-welcome {
    max-width: 500px;
}

.welcome-content {
    text-align: center;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 1s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.player-setup {
    text-align: left;
    margin: 1.5rem 0;
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: bold;
}

.input-group input {
    width: 100%;
    padding: 0.8rem;
    background: var(--bg-secondary);
    border: 1px solid var(--text-muted);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.avatar-selection label {
    display: block;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-weight: bold;
}

.avatar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
}

.avatar-option {
    width: 100%;
    aspect-ratio: 1;
    background: var(--bg-secondary);
    border: 2px solid var(--text-muted);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.avatar-option:hover {
    background: var(--bg-card);
    transform: scale(1.05);
}

.avatar-option.selected {
    border-color: var(--primary-gold);
    box-shadow: var(--shadow-gold);
    background: var(--bg-card);
}

.game-intro {
    text-align: left;
    margin-top: 1.5rem;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
}

.game-intro h4 {
    color: var(--primary-gold);
    margin-bottom: 0.8rem;
}

.game-intro ul {
    list-style: none;
    padding-left: 0;
}

.game-intro li {
    padding: 0.3rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.game-intro li::before {
    content: '🎯';
    position: absolute;
    left: 0;
    top: 0.2rem;
    font-size: 0.8rem;
}

/* ==================== 暂停界面 ==================== */
.modal-pause {
    max-width: 400px;
}

.pause-content {
    text-align: center;
}

.pause-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.pause-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ==================== 游戏结果界面 ==================== */
.modal-result {
    max-width: 500px;
}

.result-content {
    text-align: center;
}

.result-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
    animation: celebrate 1s ease-in-out infinite;
}

@keyframes celebrate {
    0%, 100% { transform: rotate(-5deg) scale(1); }
    50% { transform: rotate(5deg) scale(1.1); }
}

.result-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 1.5rem 0;
}

.result-stat {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
}

.result-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.result-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-gold);
}

.new-achievements {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    text-align: left;
}

.new-achievements h4 {
    color: var(--primary-gold);
    margin-bottom: 0.8rem;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg-card);
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.achievement-item:last-child {
    margin-bottom: 0;
}

/* ==================== 福袋界面 ==================== */
.modal-lucky-bags {
    max-width: 700px;
}

.lucky-bags-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.lucky-bags-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.lucky-bag {
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--primary-gold), var(--primary-red));
    border: 2px solid var(--primary-gold-dark);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.lucky-bag:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-gold);
}

.lucky-bag.opened {
    background: var(--bg-card);
    border-color: var(--text-muted);
    opacity: 0.6;
}

.lucky-bag.current {
    animation: lucky-bag-shine 1s ease-in-out infinite;
}

@keyframes lucky-bag-shine {
    0%, 100% { box-shadow: 0 0 10px var(--primary-gold); }
    50% { box-shadow: 0 0 25px var(--primary-gold), 0 0 40px var(--primary-red); }
}

.lucky-bag-display {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: var(--border-gold);
    min-height: 200px;
}

.lucky-bag-content-display {
    text-align: center;
}

.content-type {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: var(--primary-red);
    border-radius: 15px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.content-title {
    font-size: 1.3rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.content-body {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

/* ==================== 成就界面 ==================== */
.modal-achievements {
    max-width: 800px;
}

.achievements-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.achievement-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.achieve-tab {
    padding: 0.6rem 1.2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--text-muted);
    border-radius: 20px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.achieve-tab:hover {
    background: var(--bg-card);
}

.achieve-tab.active {
    background: var(--primary-red);
    border-color: var(--primary-gold);
}

.achievement-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.achievement-card {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-muted);
    transition: all var(--transition-fast);
}

.achievement-card:hover {
    border-color: var(--primary-gold);
    transform: translateY(-2px);
}

.achievement-card.unlocked {
    border-color: var(--primary-gold);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.achievement-card.locked {
    opacity: 0.6;
}

.achievement-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.5rem;
}

.achievement-icon {
    font-size: 2rem;
}

.achievement-name {
    font-weight: bold;
    color: var(--primary-gold);
}

.achievement-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.achievement-progress {
    height: 6px;
    background: var(--bg-card);
    border-radius: 3px;
    overflow: hidden;
}

.achievement-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary-red));
    transition: width var(--transition-normal);
}

/* ==================== 收藏界面 ==================== */
.modal-collection {
    max-width: 700px;
}

.collection-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.collection-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.collection-tab {
    padding: 0.6rem 1.2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--text-muted);
    border-radius: 20px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.collection-tab:hover {
    background: var(--bg-card);
}

.collection-tab.active {
    background: var(--primary-red);
    border-color: var(--primary-gold);
}

.collection-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.collection-item {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--text-muted);
    transition: all var(--transition-fast);
}

.collection-item:hover {
    border-color: var(--primary-gold);
    transform: translateY(-2px);
}

.collection-item-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.collection-item-type {
    padding: 0.2rem 0.6rem;
    background: var(--primary-red);
    border-radius: 10px;
    font-size: 0.75rem;
}

.collection-item-title {
    font-weight: bold;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.collection-item-content {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==================== 设置界面 ==================== */
.modal-settings {
    max-width: 500px;
}

.settings-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.setting-group {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
}

.setting-group h4 {
    color: var(--primary-gold);
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--text-muted);
    padding-bottom: 0.5rem;
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    color: var(--text-primary);
}

.btn-toggle {
    padding: 0.5rem 1rem;
    background: var(--primary-red);
    border: 1px solid var(--primary-gold);
    border-radius: 20px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.85rem;
}

.btn-toggle.active {
    background: var(--success);
    border-color: var(--success);
}

.btn-toggle:hover {
    transform: scale(1.05);
}

.setting-select {
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--text-muted);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
}

.setting-select:focus {
    outline: none;
    border-color: var(--primary-gold);
}

.btn-danger {
    width: 100%;
    padding: 0.8rem;
    background: var(--error);
    border: none;
    border-radius: 6px;
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-danger:hover {
    background: #d32f2f;
}

/* ==================== 重置确认模态框 ==================== */
.modal-reset-confirm {
    max-width: 500px;
}

.modal-reset-confirm .modal-header-danger {
    background: linear-gradient(180deg, var(--error), #b71c1c);
    border-bottom: 2px solid #ff5252;
}

.modal-reset-confirm .modal-footer-danger {
    background: rgba(244, 67, 54, 0.1);
    border-top: 1px solid rgba(244, 67, 54, 0.3);
}

.reset-confirm-content {
    text-align: center;
}

.warning-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: warning-pulse 2s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(244, 67, 54, 0.5));
}

@keyframes warning-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.warning-title {
    font-size: 1.4rem;
    color: var(--error);
    margin-bottom: 1rem;
    font-weight: bold;
}

.warning-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.reset-data-list {
    text-align: left;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    border-left: 4px solid var(--error);
}

.reset-data-list li {
    list-style: none;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reset-data-list li:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.warning-highlight {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.2), rgba(255, 152, 0, 0.2));
    border: 1px solid rgba(255, 193, 7, 0.5);
    border-radius: 8px;
    padding: 0.8rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 确认和取消按钮 */
.modal-footer-danger {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.modal-footer-danger .btn-secondary {
    flex: 1;
    max-width: 120px;
}

.modal-footer-danger .btn-danger {
    flex: 1;
    max-width: 120px;
    background: linear-gradient(135deg, var(--error), #d32f2f);
    border: 1px solid #ff6b6b;
    font-weight: bold;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.modal-footer-danger .btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.4);
    animation: danger-pulse 1.5s ease-in-out infinite;
}

.modal-footer-danger .btn-danger:active {
    transform: translateY(0);
    animation: none;
}

.modal-footer-danger .btn-danger::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.modal-footer-danger .btn-danger:hover::before {
    left: 100%;
}

@keyframes danger-pulse {
    0%, 100% { 
        box-shadow: 0 4px 12px rgba(244, 67, 54, 0.4);
        transform: translateY(-2px);
    }
    50% { 
        box-shadow: 0 6px 20px rgba(244, 67, 54, 0.6);
        transform: translateY(-4px);
    }
}

/* 设置页面中的重置按钮添加动画 */
#btn-reset-data {
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

#btn-reset-data:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.4);
    animation: danger-pulse 1.5s ease-in-out infinite;
}

/* 添加警告按钮基础样式 */
.btn-warning {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-fast);
    color: white;
    background: var(--warning);
    border: 1px solid var(--warning);
}

.btn-warning:hover {
    background: #f57c00;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(255, 152, 0, 0.3);
}

/* ==================== 重新开始确认模态框 ==================== */
.modal-restart-confirm {
    max-width: 500px;
}

.modal-restart-confirm .modal-header-warning {
    background: linear-gradient(180deg, var(--warning), #e65100);
    border-bottom: 2px solid #ffab40;
}

.modal-restart-confirm .modal-footer-warning {
    background: rgba(255, 152, 0, 0.1);
    border-top: 1px solid rgba(255, 152, 0, 0.3);
}

.restart-confirm-content {
    text-align: center;
}

.restart-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: rotate 3s linear infinite;
    filter: drop-shadow(0 0 10px rgba(255, 152, 0, 0.5));
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.restart-title {
    font-size: 1.4rem;
    color: var(--warning);
    margin-bottom: 1rem;
    font-weight: bold;
}

.restart-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.restart-data-list {
    text-align: left;
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    border-left: 4px solid var(--warning);
}

.restart-data-list li {
    list-style: none;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.restart-data-list li:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.restart-data-list li span {
    color: var(--primary-gold);
    font-weight: bold;
    margin-left: 0.5rem;
}

.restart-highlight {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.2), rgba(25, 118, 210, 0.2));
    border: 1px solid rgba(33, 150, 243, 0.5);
    border-radius: 8px;
    padding: 0.8rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-footer-warning {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.modal-footer-warning .btn-secondary {
    flex: 1;
    max-width: 120px;
}

.modal-footer-warning .btn-warning {
    flex: 1;
    max-width: 120px;
    background: linear-gradient(135deg, var(--warning), #f57c00);
    border: 1px solid #ffab40;
    color: white;
    font-weight: bold;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.modal-footer-warning .btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.4);
    animation: warning-pulse 1.5s ease-in-out infinite;
}

.modal-footer-warning .btn-warning:active {
    transform: translateY(0);
    animation: none;
}

.modal-footer-warning .btn-warning::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.modal-footer-warning .btn-warning:hover::before {
    left: 100%;
}

@keyframes warning-pulse {
    0%, 100% { 
        box-shadow: 0 4px 12px rgba(255, 152, 0, 0.4);
        transform: translateY(-2px);
    }
    50% { 
        box-shadow: 0 6px 20px rgba(255, 152, 0, 0.6);
        transform: translateY(-4px);
    }
}

/* ==================== 粒子效果 ==================== */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    overflow: hidden;
}

.particle {
    position: absolute;
    pointer-events: none;
    animation: particle-fall 1s ease-out forwards;
}

@keyframes particle-fall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100px) rotate(360deg);
        opacity: 0;
    }
}

/* ==================== 顶部控制栏 (新) ==================== */
.game-controls-top {
    display: flex;
    gap: 1rem;
    margin-bottom: 0; /* 由gap控制间距 */
    justify-content: center;
    width: 100%;
    z-index: 10;
    flex-shrink: 0; /* 防止被压缩 */
}

.btn-control-mini {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--primary-gold-dark);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.btn-control-mini:hover {
    background: var(--primary-red);
    border-color: var(--primary-gold);
    transform: scale(1.1);
    box-shadow: var(--shadow-gold);
}

.btn-control-mini.btn-restart {
    background: var(--primary-red);
    border-color: var(--primary-gold);
}

.btn-control-mini.btn-restart:hover {
    background: var(--primary-red-light);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .side-panel {
        width: 240px;
    }
    
    .game-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 992px) {
    .game-main {
        flex-direction: column;
    }
    
    .side-panel {
        width: 100%;
        max-height: 200px;
    }
    
    .left-panel {
        order: 2;
    }
    
    .right-panel {
        order: 3;
    }
    
    .game-board-wrapper {
        order: 1;
    }
    
    /* 平板/移动端横屏优化：进一步限制游戏板尺寸 */
    .game-board {
        width: min(100%, calc(100vh - 400px)); /* 预留更多空间给头部/侧边栏 */
        padding: 4px;
    }

}


@media (max-width: 768px) {
    .game-header {
        padding: 0.6rem 1rem;
    }
    
    .game-title {
        font-size: 1.2rem;
    }
    
    .game-status-bar {
        padding: 0.5rem 1rem;
        gap: 1rem;
    }
    
    .status-value {
        font-size: 0.95rem;
        min-width: 50px;
    }
    
    .player-avatar {
        padding: 0.3rem 0.6rem;
    }
    
    .avatar-image {
        width: 32px;
        height: 32px;
        font-size: 1.2rem;
    }
    
    .player-name {
        font-size: 0.8rem;
    }
    
    .player-level {
        font-size: 0.7rem;
    }
    
    .tile {
        font-size: 1.2rem;
        min-height: 35px;
        min-width: 35px;
    }
    
    .tile .tile-icon {
        font-size: 1.3rem;
    }
    
    .game-board {
        gap: 2px;
        padding: 4px;
        max-width: 100%;
        max-height: 100%;
    }
    
    .modal-content {
        max-width: 95%;
        max-height: 95%;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .result-stats {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .lucky-bags-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 480px) {
    .header-left,
    .header-right {
        gap: 0.5rem;
    }
    
    .btn-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    
    .game-status-bar {
        font-size: 0.85rem;
    }
    
    .status-item {
        gap: 0.3rem;
    }
    
    .status-label {
        font-size: 0.75rem;
    }
    
    .game-main {
        padding: 0.5rem;
    }
    
    .side-panel {
        max-height: 150px;
        padding: 0.6rem;
    }
    
    .section-title {
        font-size: 0.9rem;
    }
    
    /* 移动端12x12难度专门优化 */
    .game-board.difficulty-hard .tile {
        font-size: 0.8rem; /* 更小字体，确保144个格子能显示 */
        border-width: 1px;
        border-radius: 1px;
    }
    
    .tile {
        font-size: 1.2rem;
    }
    
    .tile .tile-icon {
        font-size: 1.3rem;
    }
    
    .modal-title {
        font-size: 1.1rem;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .avatar-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    
    .avatar-option {
        font-size: 1.5rem;
    }
}

/* ==================== 极端尺寸专门优化 ==================== */
/* 针对1055×1271分辨率（平板竖屏）的全面优化 */
/* 修复：使用更精确的媒体查询，覆盖1000-1270px范围 */
@media (min-width: 1000px) and (max-width: 1270px) and (max-height: 1300px) and (min-height: 1000px) {
    .game-main {
        padding: 0.2rem 0; /* 减小左右padding */
        gap: 0; /* 移除间隙 */
    }
    
   
    
    .game-header {
        padding: 0.2rem 0.4rem; /* 进一步减小 */
    }
    
    .game-title {
        font-size: 1rem; /* 更小标题 */
        letter-spacing: 0;
    }
    
    .game-status-bar {
        padding: 0.2rem 0.4rem;
        gap: 0.8rem;
    }
    
    .status-value {
        font-size: 0.9rem;
        min-width: 35px;
    }
    
    .panel-section {
        padding: 0.6rem; /* 减小面板内边距 */
    }
    
    .section-title {
        font-size: 0.85rem;
        margin-bottom: 0.5rem;
    }
    
    .game-board-wrapper {
        padding: 0.3rem; /* 极小化内边距 */
        gap: 0.3rem;
    }
    
    /* 游戏板尺寸：针对1055×1271专门计算 */
    /* 可用高度：1271 - (header + status + padding + footer + controls) ≈ 1271 - 260 = 1011 */
    /* 可用宽度：1055 - (sidepanels + padding) ≈ 1055 - 380 = 675 */
    /* 限制因素是宽度，所以最大尺寸约675px */
    .game-board {
        width: min(100%, calc(100vh - 260px), calc(100vw - 380px)); /* 精确计算 */
        padding: 3px;
        gap: 1px;
    }
    
    /* 12x12难度的极端优化 */
    .game-board.difficulty-hard {
        gap: 0;
        padding: 1px;
    }
    
    .difficulty-hard .tile {
        font-size: 0.75rem; /* 更小字体 */
        border-width: 1px;
        border-radius: 1px;
    }
    
    .btn-control-mini {
        width: 32px; /* 更小控制按钮 */
        height: 32px;
        font-size: 0.9rem;
    }
    
    .game-footer {
        padding: 0.4rem; /* 减小底部 */
    }
    
    .footer-content {
        font-size: 0.8rem;
    }
}

/* 针对高度特别受限的屏幕（如某些平板竖屏） */
@media (max-height: 900px) and (min-width: 1000px) {
    .game-board {
        width: min(100%, calc(100vh - 220px)); /* 进一步减少预留空间 */
    }
    
    .game-board.difficulty-hard .tile {
        font-size: 0.75rem; /* 更小字体 */
    }
}

/* 针对超小高度屏幕（手机横屏） */
@media (max-height: 600px) {
    .game-header {
        display: none; /* 隐藏头部，为游戏板腾出空间 */
    }
    
    .game-status-bar {
        padding: 0.2rem;
        gap: 0.5rem;
    }
    
    .game-board {
        width: min(100%, calc(100vh - 80px)); /* 极小的预留空间 */
    }
    
    .side-panel {
        max-height: 100px; /* 大幅减小侧边栏高度 */
    }
    
    /* 极端情况下的12x12优化 */
    .game-board.difficulty-hard .tile {
        font-size: 0.6rem;
    }
}

/* 针对超小宽度屏幕 */
@media (max-width: 600px) {
    
    
    .game-board {
        width: min(100%, calc(100vh - 320px));
    }
}

/* ==================== 滚动条样式 ====================
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-gold-dark);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-gold);
}

/* ==================== 工具类 ==================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-gold {
    color: var(--primary-gold);
}

.text-red {
    color: var(--primary-red);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }