/* 键盘清理模式页面样式 - 与 screen-test.css 保持一致 */
.keyboard-clean-page {
    max-width: 900px;
    margin: 40px auto 60px;
    padding: 0 20px;
}

/* 页面标题 */
.keyboard-clean-page .page-header {
    text-align: center;
    margin-bottom: 40px;
}

.keyboard-clean-page .header-icon {
    width: 56px;
    height: 56px;
    color: #2c3e50;
    margin-bottom: 16px;
}

.keyboard-clean-page .page-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 12px 0;
}

.keyboard-clean-page .page-header p {
    font-size: 16px;
    color: #666;
    margin: 0;
    line-height: 1.6;
}

/* 状态面板 */
.keyboard-clean-page .kc-status-panel {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.keyboard-clean-page .kc-status-header {
    padding: 16px 20px;
    background: #f8f8f8;
    border-bottom: 1px solid #e8e8e8;
}

.keyboard-clean-page .kc-status-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.keyboard-clean-page .kc-status-header h3 svg {
    width: 20px;
    height: 20px;
}

.keyboard-clean-page .kc-status-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: #e8e8e8;
}

.keyboard-clean-page .kc-status-item {
    background: #fff;
    padding: 16px 20px;
}

.keyboard-clean-page .kc-status-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.keyboard-clean-page .kc-status-value {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    font-family: 'Courier New', Consolas, monospace;
}

/* 主操作区 */
.keyboard-clean-page .kc-action-section {
    margin-bottom: 24px;
}

.keyboard-clean-page .kc-action-card {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    transition: box-shadow 0.3s;
}

.keyboard-clean-page .kc-action-card:hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.keyboard-clean-page .kc-action-icon {
    width: 64px;
    height: 64px;
    background: #2c3e50;
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.keyboard-clean-page .kc-action-icon svg {
    width: 32px;
    height: 32px;
}

.keyboard-clean-page .kc-action-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px;
}

.keyboard-clean-page .kc-action-card > p {
    font-size: 14px;
    color: #666;
    margin: 0 0 24px;
}

/* 倒计时选择 */
.keyboard-clean-page .kc-timer-select {
    margin-bottom: 24px;
}

.keyboard-clean-page .kc-timer-select label {
    font-size: 13px;
    color: #999;
    display: block;
    margin-bottom: 8px;
}

.keyboard-clean-page .kc-timer-options {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.keyboard-clean-page .kc-timer-btn {
    padding: 8px 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    background: #fff;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.keyboard-clean-page .kc-timer-btn:hover {
    border-color: #2c3e50;
    color: #2c3e50;
}

.keyboard-clean-page .kc-timer-btn.active {
    background: #2c3e50;
    color: #fff;
    border-color: #2c3e50;
}

/* 开始按钮 */
.keyboard-clean-page .kc-btn-start {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 40px;
    background: #2c3e50;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.keyboard-clean-page .kc-btn-start:hover {
    background: #1a252f;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(44, 62, 80, 0.3);
}

.keyboard-clean-page .kc-btn-start:active {
    transform: translateY(0);
}

/* 注意事项 */
.keyboard-clean-page .kc-notes-card {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.keyboard-clean-page .kc-notes-header {
    padding: 16px 20px;
    background: #fffbf0;
    border-bottom: 1px solid #f0e6cc;
}

.keyboard-clean-page .kc-notes-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: #8a6d3b;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.keyboard-clean-page .kc-notes-header h3 svg {
    width: 20px;
    height: 20px;
}

.keyboard-clean-page .kc-notes-body {
    padding: 20px;
}

.keyboard-clean-page .kc-note-item {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.keyboard-clean-page .kc-note-item:last-child {
    margin-bottom: 0;
}

.keyboard-clean-page .kc-note-num {
    width: 28px;
    height: 28px;
    background: #2c3e50;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
    margin-top: 2px;
}

.keyboard-clean-page .kc-note-item strong {
    display: block;
    font-size: 14px;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.keyboard-clean-page .kc-note-item p {
    font-size: 13px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* FAQ */
.keyboard-clean-page .kc-faq-section {
    margin-bottom: 40px;
}

.keyboard-clean-page .kc-faq-section h2 {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 20px;
}

.keyboard-clean-page .kc-faq-item {
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    margin-bottom: 8px;
    overflow: hidden;
}

.keyboard-clean-page .kc-faq-item summary {
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.keyboard-clean-page .kc-faq-item summary::-webkit-details-marker {
    display: none;
}

.keyboard-clean-page .kc-faq-item summary::after {
    content: '+';
    font-size: 20px;
    color: #999;
    transition: transform 0.2s;
}

.keyboard-clean-page .kc-faq-item[open] summary::after {
    content: '-';
}

.keyboard-clean-page .kc-faq-item p {
    padding: 0 20px 16px;
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* ===== 覆盖层 ===== */
.kc-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(20, 20, 30, 0.96);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s;
    user-select: none;
    -webkit-user-select: none;
}

.kc-overlay-exit {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100000;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    backdrop-filter: blur(8px);
}

.kc-overlay-exit:hover {
    background: rgba(255, 255, 255, 0.25);
}

.kc-overlay-content {
    text-align: center;
    color: #fff;
    transition: opacity 0.5s;
}

.kc-overlay-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    opacity: 0.8;
}

.kc-overlay-icon svg {
    width: 80px;
    height: 80px;
}

.kc-overlay-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 12px;
    letter-spacing: 1px;
}

.kc-overlay-hint {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.6);
    margin: 0 0 32px;
}

.kc-overlay-timer {
    font-size: 72px;
    font-weight: 700;
    font-family: 'Courier New', Consolas, monospace;
    margin: 0 0 16px;
    letter-spacing: 4px;
}

.kc-overlay-extend {
    padding: 8px 24px;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 32px;
    display: inline-block;
}

.kc-overlay-extend:hover {
    background: rgba(255, 255, 255, 0.2);
}

.kc-overlay-stats {
    display: flex;
    gap: 32px;
    justify-content: center;
    margin-bottom: 32px;
}

.kc-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.kc-stat span {
    font-size: 28px;
    font-weight: 700;
    font-family: 'Courier New', Consolas, monospace;
}

.kc-stat small {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.kc-overlay-esc-hint {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    margin: 0;
}

/* 覆盖层淡出 */
.kc-overlay-content.kc-faded {
    opacity: 0.15;
}

/* 拦截涟漪效果 */
.kc-ripple {
    position: fixed;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    pointer-events: none;
    animation: kc-ripple-expand 0.6s ease-out forwards;
    z-index: 99998;
}

@keyframes kc-ripple-expand {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        width: 80px;
        height: 80px;
        opacity: 0;
    }
}

/* 里程碑提示 */
.kc-milestone {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    color: #2c3e50;
    padding: 24px 40px;
    border-radius: 16px;
    font-size: 24px;
    font-weight: 700;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 100001;
    animation: kc-milestone-show 2s ease-out forwards;
    pointer-events: none;
}

@keyframes kc-milestone-show {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    20% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.1);
    }
    30% {
        transform: translate(-50%, -50%) scale(1);
    }
    80% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

/* 统计数字颜色变化 */
.kc-stat span.kc-stat-hot {
    color: #f59e0b;
    animation: kc-pulse 1s ease-in-out infinite;
}

.kc-stat span.kc-stat-fire {
    color: #ef4444;
    animation: kc-pulse 0.5s ease-in-out infinite;
}

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


/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .keyboard-clean-page {
        margin: 16px auto 40px;
        padding: 0 16px;
    }

    .keyboard-clean-page .page-header h1 {
        font-size: 24px;
    }

    .keyboard-clean-page .page-header p {
        font-size: 14px;
    }

    .keyboard-clean-page .kc-status-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .keyboard-clean-page .kc-action-card {
        padding: 24px 16px;
    }

    .keyboard-clean-page .kc-action-card h3 {
        font-size: 18px;
    }

    .keyboard-clean-page .kc-timer-options {
        flex-wrap: wrap;
    }

    .keyboard-clean-page .kc-btn-start {
        width: 100%;
        justify-content: center;
        padding: 14px 24px;
    }

    .kc-overlay-content h2 {
        font-size: 24px;
    }

    .kc-overlay-timer {
        font-size: 48px;
    }

    .kc-overlay-stats {
        gap: 16px;
    }

    .kc-stat span {
        font-size: 22px;
    }

    .kc-overlay-exit {
        top: 12px;
        right: 12px;
        padding: 8px 14px;
        font-size: 13px;
    }
}