/* ==========================================
   合规连连看 - 浅色粉彩视觉风格
   设计系统基于 Ardot 设计稿
   ========================================== */

/* --- CSS 变量 --- */
:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FC;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-solid: #FFFFFF;
    --bg-glass: rgba(255, 255, 255, 0.85);

    --text-primary: #1A1A2E;
    --text-secondary: #6B6B8A;
    --text-muted: #9B9BB5;

    --accent-pink: #FF6B9D;
    --accent-pink-light: rgba(255, 107, 157, 0.12);
    --accent-blue: #6B8AFF;
    --accent-blue-light: rgba(107, 138, 255, 0.12);
    --accent-yellow: #FFCB47;
    --accent-yellow-light: rgba(255, 203, 71, 0.15);
    --accent-green: #10B981;

    --border-subtle: rgba(107, 138, 255, 0.1);
    --border-medium: rgba(107, 138, 255, 0.2);
    --border-accent: rgba(107, 138, 255, 0.35);

    --shadow-card: 0 4px 16px rgba(107, 138, 255, 0.08);
    --shadow-card-hover: 0 8px 32px rgba(107, 138, 255, 0.15);
    --shadow-btn: 0 4px 14px rgba(107, 138, 255, 0.2);
    --shadow-modal: 0 16px 48px rgba(26, 26, 46, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-btn: 50px;

    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-top: env(safe-area-inset-top, 0px);

    --font-display: 'Inter', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', 'Inter', sans-serif;
    --font-mono: 'Inter', monospace;
}

/* --- 全局重置 --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    height: 100%;
    height: -webkit-fill-available;
    overflow: hidden;
    background: var(--bg-primary);
    font-family: var(--font-body);
    color: var(--text-primary);
    user-select: none;
    -webkit-user-select: none;
    -webkit-overflow-scrolling: none;
    touch-action: none;
    position: fixed;
    top: 0;
    left: 0;
    -webkit-font-smoothing: antialiased;
}

/* --- 屏幕切换 --- */
.screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none;
    overflow: hidden;
}
.screen.active {
    display: flex;
    flex-direction: column;
}

/* --- 底图背景 --- */
.home-bg, .game-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 0;
}
.home-bg {
    background:
        radial-gradient(circle at 25% 20%, rgba(255, 107, 157, 0.18) 0%, transparent 45%),
        radial-gradient(circle at 75% 15%, rgba(107, 138, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 60% 85%, rgba(255, 203, 71, 0.18) 0%, transparent 50%),
        radial-gradient(circle at 15% 70%, rgba(107, 138, 255, 0.12) 0%, transparent 45%),
        linear-gradient(180deg, #FFFFFF 0%, #F8F9FC 50%, #F0F2FF 100%);
}
.game-bg {
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 107, 157, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 25%, rgba(107, 138, 255, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 50% 70%, rgba(255, 203, 71, 0.1) 0%, transparent 45%),
        linear-gradient(180deg, #FFFFFF 0%, #F8F9FC 100%);
}

/* ==========================================
   主界面
   ========================================== */
.home-container {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 20px;
    gap: 16px;
    overflow-y: auto;
    padding-top: calc(24px + var(--safe-top));
    padding-bottom: calc(24px + var(--safe-bottom));
}

/* Logo 区域 */
.logo-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.logo-icon {
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-pink) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(107, 138, 255, 0.3);
}
.game-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 7vw, 42px);
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: 3px;
}
.game-subtitle {
    font-family: var(--font-body);
    font-size: clamp(13px, 3vw, 16px);
    color: var(--text-secondary);
    font-weight: 500;
    letter-spacing: 1px;
}

/* 关卡进度卡片 */
.level-progress-card {
    width: 100%;
    max-width: 360px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: var(--shadow-card);
    flex-shrink: 0;
}
.level-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.level-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}
.level-icon {
    font-size: 20px;
}
.level-text {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}
.level-number {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 900;
    color: var(--accent-blue);
}
.progress-bar-track {
    width: 100%;
    height: 8px;
    background: var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
}
.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-pink));
    border-radius: 4px;
    transition: width 0.5s ease;
}
.progress-hint {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* 操作面板 */
.action-panel {
    width: 100%;
    max-width: 360px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: var(--shadow-card);
    flex-shrink: 0;
}

/* 在线状态 */
.online-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}
.online-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: blink 1s steps(2) infinite;
    flex-shrink: 0;
}
@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* 输入框 */
.input-label {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}
.input-frame {
    background: var(--bg-primary);
    border: 2px solid var(--border-accent);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.2s;
}
.input-frame:focus-within {
    border-color: var(--accent-blue);
}
.name-input {
    width: 100%;
    padding: 12px 16px;
    border: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--text-primary);
    outline: none;
}
.name-input::placeholder {
    color: var(--text-muted);
}

/* 规则框 */
.rules-box {
    background: rgba(107, 138, 255, 0.04);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.rules-title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 2px;
}
.rules-item {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    padding-left: 4px;
}

/* 开始按钮 */
.start-btn {
    width: 100%;
    padding: 16px 24px;
    min-height: 48px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #8B9FFF 100%);
    color: #FFFFFF;
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-btn);
    cursor: pointer;
    letter-spacing: 1px;
    box-shadow: var(--shadow-btn);
    transition: transform 0.15s, box-shadow 0.15s;
}
.start-btn:active {
    transform: scale(0.97);
    box-shadow: 0 2px 8px rgba(107, 138, 255, 0.15);
}

/* 排行榜按钮 */
.leaderboard-btn {
    width: 100%;
    padding: 14px 24px;
    min-height: 48px;
    background: transparent;
    border: 2px solid var(--border-accent);
    color: var(--accent-blue);
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-btn);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}
.leaderboard-btn:active {
    background: var(--accent-blue);
    color: #FFFFFF;
}

/* 页脚 */
.footer {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    flex-shrink: 0;
    padding-bottom: 8px;
}

/* ==========================================
   游戏界面
   ========================================== */
/* HUD */
.hud {
    position: relative;
    z-index: 10;
    height: clamp(52px, 9vh, 72px);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-medium);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 0 12px;
    flex-shrink: 0;
}
.hud-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}
.hud-label {
    font-size: 9px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.hud-value {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 900;
    color: var(--text-primary);
}
.hud-value.timer {
    color: var(--accent-pink);
}
.hud-value.timer.urgent {
    animation: timerPulse 0.5s ease infinite;
}
@keyframes timerPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}
.hud-value.combo {
    color: var(--accent-pink);
}

/* 暂停按钮 */
.pause-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--border-medium);
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 12px;
    color: var(--text-secondary);
}
.pause-btn:active {
    background: var(--accent-blue-light);
}

/* 游戏棋盘容器 */
.game-board-wrapper {
    flex: 1;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    overflow: hidden;
}
.game-board {
    display: grid;
    gap: 4px;
    position: relative;
    z-index: 2;
    align-content: start;
    justify-content: start;
}
.line-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* 卡片 */
.card {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    transition: transform 0.15s, box-shadow 0.15s, opacity 0.3s;
    font-family: var(--font-body);
    font-weight: 700;
    text-align: center;
    line-height: 1.15;
    overflow: hidden;
    word-break: break-all;
    overflow-wrap: break-word;
    padding: 2px;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}
.card:active {
    transform: scale(0.92);
}

/* 风险等级配色 */
.card.risk-high {
    background: linear-gradient(135deg, #FFF0F5 0%, #FFE0EC 100%);
    border: 2px solid var(--accent-pink);
    color: var(--accent-pink);
    box-shadow: 0 2px 8px rgba(255, 107, 157, 0.15);
}
.card.risk-medium {
    background: linear-gradient(135deg, #F0F4FF 0%, #E0E8FF 100%);
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: 0 2px 8px rgba(107, 138, 255, 0.15);
}
.card.risk-low {
    background: linear-gradient(135deg, #FFFDF0 0%, #FFF8DC 100%);
    border: 2px solid var(--accent-yellow);
    color: #B8860B;
    box-shadow: 0 2px 8px rgba(255, 203, 71, 0.2);
}

/* 卡片选中状态 */
.card.selected {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(107, 138, 255, 0.3);
    border-color: var(--accent-blue);
    z-index: 3;
}
.card.selected::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 10px;
    border: 2px solid var(--accent-blue);
    animation: selectPulse 1s ease infinite;
}
@keyframes selectPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 卡片消除动画 */
.card.matched {
    animation: cardMatched 0.4s ease forwards;
    transition: none !important;
    pointer-events: none;
}
@keyframes cardMatched {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.5; }
    100% { transform: scale(0); opacity: 0; visibility: hidden; }
}

/* 卡片提示高亮 */
.card.hint-glow {
    animation: hintPulse 0.6s ease 2;
}
@keyframes hintPulse {
    0%, 100% { box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3); }
    50% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.6), 0 0 40px rgba(16, 185, 129, 0.3); }
}

/* Toast 提示 */
.game-toast {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(26, 26, 46, 0.88);
    color: #FFFFFF;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 24px;
    pointer-events: none;
    z-index: 60;
    opacity: 0;
    transition: opacity 0.2s;
    white-space: nowrap;
    letter-spacing: 0.5px;
}
.game-toast.show {
    opacity: 1;
}
.game-toast.hidden {
    display: none;
}

/* 道具栏 */
.powerup-bar {
    position: relative;
    z-index: 10;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-medium);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 10px 12px;
    padding-bottom: calc(10px + var(--safe-bottom));
    gap: 8px;
    flex-shrink: 0;
}
.powerup-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--bg-card);
    cursor: pointer;
    transition: all 0.2s;
    flex: 1;
    min-width: 0;
}
.powerup-btn:active {
    background: var(--accent-blue-light);
    border-color: var(--accent-blue);
}
.powerup-btn:disabled {
    opacity: 0.4;
    pointer-events: none;
}
.powerup-icon {
    font-size: 20px;
    display: flex;
    align-items: center;
}
.powerup-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
}
.powerup-count {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-blue);
    background: var(--accent-blue-light);
    padding: 1px 6px;
    border-radius: 8px;
    min-width: 20px;
    text-align: center;
}

/* ==========================================
   弹窗通用样式
   ========================================== */
.modal {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}
.modal.hidden {
    display: none;
}
.modal-box {
    background: var(--bg-card-solid);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    width: calc(100% - 48px);
    max-width: 340px;
    box-shadow: var(--shadow-modal);
}
.modal-title {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: 1px;
}
.modal-title.success {
    color: var(--accent-green);
}
.modal-title.danger {
    color: var(--accent-pink);
}
.modal-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.modal-btn {
    width: 100%;
    padding: 14px 24px;
    min-height: 48px;
    background: transparent;
    border: 2px solid var(--border-accent);
    color: var(--accent-blue);
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all 0.2s;
}
.modal-btn:active {
    background: var(--accent-blue);
    color: #FFFFFF;
}
.modal-btn.primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, #8B9FFF 100%);
    color: #FFFFFF;
    border: none;
    box-shadow: var(--shadow-btn);
}
.modal-btn.primary:active {
    transform: scale(0.97);
}
.final-score {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}
.final-rank {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-pink);
}

/* ==========================================
   排行榜弹窗
   ========================================== */
.leaderboard-modal-box {
    max-width: 400px;
    max-height: 75vh;
    padding: 20px 20px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
}
.leaderboard-modal-box .modal-title {
    align-self: center;
    white-space: nowrap;
    font-size: 18px;
    color: var(--accent-blue);
}

/* Tab 切换 */
.leaderboard-tabs {
    display: flex;
    gap: 0;
    border-radius: var(--radius-btn);
    background: var(--border-subtle);
    padding: 3px;
}
.lb-tab {
    flex: 1;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all 0.2s;
}
.lb-tab.active {
    background: #FFFFFF;
    color: var(--accent-blue);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

/* 表格容器 */
.leaderboard-table-wrapper {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}
.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.leaderboard-table th,
.leaderboard-table td {
    padding: 10px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
}
.leaderboard-table th {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.leaderboard-table td {
    font-family: var(--font-body);
    color: var(--text-primary);
    font-weight: 500;
}
.leaderboard-table .rank-col {
    width: 36px;
    text-align: center;
    font-weight: 900;
}
.leaderboard-table .rank-1 { color: #FFD700; }
.leaderboard-table .rank-2 { color: #C0C0C0; }
.leaderboard-table .rank-3 { color: #CD7F32; }
.leaderboard-table .name-col {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.leaderboard-table .score-col {
    text-align: right;
    font-family: var(--font-mono);
    font-weight: 700;
}
.leaderboard-table .me-row {
    background: rgba(255, 107, 157, 0.08);
}
.leaderboard-table .me-row td {
    color: var(--accent-pink);
    font-weight: 700;
}

/* ==========================================
   响应式
   ========================================== */
/* 手机 ≤640px */
@media (max-width: 640px) {
    .home-container {
        padding: 16px 14px;
        gap: 12px;
    }
    .game-title {
        font-size: clamp(24px, 8vw, 36px);
        letter-spacing: 2px;
    }
    .level-progress-card {
        padding: 16px 18px;
    }
    .action-panel {
        padding: 16px 18px;
        gap: 12px;
    }
    .modal-box {
        padding: 24px 20px;
        gap: 12px;
        width: calc(100% - 32px);
    }
    .hud {
        padding: 0 8px;
    }
    .hud-value {
        font-size: 16px;
    }
    .powerup-bar {
        padding: 8px 8px;
        gap: 4px;
    }
    .powerup-btn {
        padding: 6px 8px;
        gap: 2px;
    }
    .powerup-label {
        font-size: 10px;
    }
}

/* 超小屏 ≤360px */
@media (max-width: 360px) {
    .home-container {
        padding: 10px 8px;
        gap: 8px;
    }
    .action-panel {
        padding: 12px 14px;
        gap: 10px;
    }
    .game-title {
        font-size: 22px;
    }
    .powerup-btn {
        padding: 4px 6px;
    }
    .powerup-label {
        font-size: 9px;
    }
}

/* 平板 ≤900px */
@media (max-width: 900px) and (min-width: 641px) {
    .home-container {
        padding: 20px 16px;
    }
}

/* 横屏手机 */
@media (max-width: 900px) and (orientation: landscape) {
    .home-container {
        padding: 8px 12px;
        gap: 8px;
    }
    .game-title {
        font-size: 22px;
    }
    .game-subtitle {
        font-size: 12px;
    }
    .logo-icon {
        width: 44px;
        height: 44px;
        border-radius: 14px;
    }
    .level-progress-card {
        padding: 12px 16px;
    }
    .action-panel {
        padding: 12px 16px;
        gap: 8px;
    }
    .hud {
        height: 44px;
    }
    .powerup-bar {
        padding: 4px 8px;
    }
    .powerup-btn {
        flex-direction: row;
        padding: 4px 8px;
        gap: 4px;
    }
}

/* 桌面端 hover */
@media (hover: hover) {
    .card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-card-hover);
    }
    .card.selected:hover {
        transform: scale(1.05);
    }
    .start-btn:hover {
        box-shadow: 0 6px 20px rgba(107, 138, 255, 0.3);
        transform: translateY(-1px);
    }
    .leaderboard-btn:hover {
        background: var(--accent-blue);
        color: #FFFFFF;
    }
    .pause-btn:hover {
        background: var(--accent-blue-light);
    }
    .modal-btn:hover {
        background: var(--accent-blue);
        color: #FFFFFF;
    }
    .powerup-btn:hover {
        background: var(--accent-blue-light);
        border-color: var(--accent-blue);
    }
    .lb-tab:hover {
        color: var(--accent-blue);
    }
}

/* 浮动分数动画 */
@keyframes floatUp {
    0% { opacity: 1; transform: translateY(0) scale(1); }
    30% { opacity: 1; transform: translateY(-10px) scale(1.2); }
    100% { opacity: 0; transform: translateY(-50px) scale(0.8); }
}