/* ===== 现代暗色模式设计系统 ===== */
:root {
    --bg-primary: #111111;
    --bg-secondary: #1a1a1a;
    --bg-glass: rgba(26, 26, 26, 0.6);
    --accent: #00f2ff;
    --accent-glow: rgba(0, 242, 255, 0.4);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    overflow-y: auto;
    min-height: 100vh;
    position: relative;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(0, 242, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 242, 255, 0.02) 0%, transparent 50%),
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.02) 2px, rgba(255, 255, 255, 0.02) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255, 255, 255, 0.02) 2px, rgba(255, 255, 255, 0.02) 4px);
    background-size: 100% 100%, 100% 100%, 40px 40px, 40px 40px;
}

/* ===== 粒子画布 ===== */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* ===== 主游戏容器 ===== */
.game-container {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 2;
    padding: 20px;
}

/* ===== 模式选择器 ===== */
.mode-selector {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding: 6px;
}

.mode-btn {
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: 50px;
    color: var(--text-secondary);
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.mode-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active {
    background: var(--accent);
    color: var(--bg-primary);
    box-shadow: 0 0 15px var(--accent-glow);
}

.mode-btn.active:hover {
    background: #00d9e6;
}

/* ===== 中心游戏区域 ===== */
.game-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    position: relative;
}

/* ===== 分数区域 ===== */
.score-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* ===== 增强的CPS显示 ===== */
.cps-display-large {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.cps-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.cps-value {
    font-family: 'Share Tech Mono', monospace;
    font-size: 3rem;
    font-weight: 600;
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
    transition: transform 0.2s ease;
}

.cps-value.pulse {
    animation: cps-pulse 0.3s ease;
}

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

/* ===== 分数显示 ===== */
.score-display {
    font-family: 'Inter', sans-serif;
    font-size: 12rem;
    font-weight: 300;
    color: var(--text-primary);
    line-height: 1;
    letter-spacing: -0.02em;
    text-align: center;
    transition: transform 0.1s ease;
    user-select: none;
    text-shadow: 0 0 40px var(--accent-glow);
}

.score-display.animate {
    transform: scale(1.05);
}

/* ===== 倒计时显示 ===== */
.countdown-timer {
    font-family: 'Share Tech Mono', monospace;
    font-size: 4rem;
    font-weight: 300;
    color: var(--accent);
    text-shadow: 0 0 30px var(--accent-glow);
    letter-spacing: 4px;
    user-select: none;
}

/* ===== 引导提示 ===== */
.instruction-text {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: rgba(180, 255, 180, 0.6);
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.instruction-text:hover {
    opacity: 1;
}

/* ===== 反应堆核心按钮 ===== */
.reactor-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reactor-core {
    position: relative;
    width: 200px;
    height: 200px;
    border: none;
    background: transparent;
    cursor: pointer;
    outline: none;
    border-radius: 50%;
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

.reactor-core:active {
    transform: scale(0.95);
}

.reactor-core:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.reactor-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 255, 0.15) 0%, rgba(0, 242, 255, 0.05) 50%, transparent 70%);
    border: 2px solid var(--accent);
    box-shadow: 
        0 0 30px var(--accent-glow),
        inset 0 0 30px rgba(0, 242, 255, 0.1);
    animation: reactor-pulse 2s ease-in-out infinite;
}

.reactor-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 1px solid var(--accent);
    opacity: 0.6;
    animation: pulse-ring 2s ease-out infinite;
}

.reactor-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    border-radius: 50%;
    background: radial-gradient(circle, transparent 60%, var(--accent-glow) 100%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.reactor-core:hover .reactor-glow {
    opacity: 1;
}

@keyframes reactor-pulse {
    0%, 100% {
        box-shadow: 
            0 0 30px var(--accent-glow),
            inset 0 0 30px rgba(0, 242, 255, 0.1);
    }
    50% {
        box-shadow: 
            0 0 50px var(--accent-glow),
            inset 0 0 40px rgba(0, 242, 255, 0.2);
    }
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0;
    }
}

/* ===== 排行榜侧边栏 ===== */
.leaderboard-panel {
    position: fixed;
    right: 0;
    top: 0;
    height: 100vh;
    width: 320px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
}

.leaderboard-panel.open {
    transform: translateX(0);
}

.leaderboard-toggle {
    position: absolute;
    left: -50px;
    top: 30px;
    width: 44px;
    height: 44px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-right: none;
    border-radius: 8px 0 0 8px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 101;
}

.leaderboard-toggle:hover {
    background: var(--bg-secondary);
    color: var(--accent);
}

.leaderboard-content {
    flex: 1;
    padding: 30px 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.leaderboard-title {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.leaderboard-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.name-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    outline: none;
    transition: all 0.2s ease;
}

.name-input:focus {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.name-input::placeholder {
    color: var(--text-muted);
}

.button-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.btn {
    padding: 10px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: #00d9e6;
    border-color: #00d9e6;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 242, 255, 0.3);
}

.btn-secondary:hover,
.btn-tertiary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-tertiary {
    width: 100%;
    color: var(--text-secondary);
}

.leaderboard-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    overflow-y: auto;
    padding-right: 8px;
}

.leaderboard-list li {
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.leaderboard-list li:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--accent);
    transform: translateX(-4px);
}

.leaderboard-list li:first-child:not(.empty-message) {
    background: rgba(0, 242, 255, 0.1);
    border-color: var(--accent);
}

.player-name {
    color: var(--text-primary);
    font-weight: 500;
}

.player-score {
    color: var(--accent);
    font-family: 'Share Tech Mono', monospace;
    font-weight: 600;
}

.empty-message {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    padding: 40px 20px;
    border: none;
    background: transparent;
}

.empty-message:hover {
    transform: none;
    border: none;
}

/* 滚动条样式 */
.leaderboard-list::-webkit-scrollbar,
.leaderboard-content::-webkit-scrollbar {
    width: 6px;
}

.leaderboard-list::-webkit-scrollbar-track,
.leaderboard-content::-webkit-scrollbar-track {
    background: transparent;
}

.leaderboard-list::-webkit-scrollbar-thumb,
.leaderboard-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.leaderboard-list::-webkit-scrollbar-thumb:hover,
.leaderboard-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===== 系统状态栏（广告位） ===== */
.system-status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 90px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    z-index: 50;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

.status-items {
    display: flex;
    gap: 24px;
    align-items: center;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
    animation: status-pulse 2s ease-in-out infinite;
}

@keyframes status-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.ad-slot {
    width: 728px;
    height: 90px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.ad-slot::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    top: 50%;
    left: 0;
}

/* ===== 隐蔽广告位 ===== */
.ad-slot-stealth {
    width: 728px;
    height: 90px;
    max-width: 728px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ad-placeholder-text {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    opacity: 0.3;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid var(--accent);
    border-radius: 16px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 0 40px rgba(0, 242, 255, 0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
}

.modal-title {
    font-family: 'Inter', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    flex: 1;
}

.modal-close {
    position: absolute;
    top: 0;
    right: 0;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    outline: none;
    flex-shrink: 0;
    z-index: 10;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    color: var(--accent);
    transform: rotate(90deg);
}

.modal-close:active {
    transform: rotate(90deg) scale(0.95);
}

.modal-close svg {
    width: 18px;
    height: 18px;
}

.modal-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.modal-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.modal-stat-label {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-stat-value {
    font-family: 'Share Tech Mono', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
}

.modal-actions {
    display: flex;
    gap: 12px;
}

.modal-actions .btn {
    flex: 1;
}

/* ===== 任务简报模块 ===== */
.mission-brief {
    position: fixed;
    top: 30px;
    left: 30px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    z-index: 20;
    max-width: 320px;
    box-shadow: var(--shadow-md);
}

.mission-brief-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.875rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.mission-brief-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mission-brief-item {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    letter-spacing: 0.5px;
}

.mission-brief-item:first-child {
    color: var(--text-primary);
}

/* ===== SEO内容区域 ===== */
.seo-content {
    background: var(--bg-secondary);
    padding: 60px 20px;
    margin-top: 85vh;
    min-height: 100vh;
}

.seo-container {
    max-width: 1200px;
    margin: 0 auto;
    line-height: 1.7;
}

.seo-content h1 {
    font-family: 'Inter', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 30px;
    line-height: 1.2;
}

.seo-content h2 {
    font-family: 'Inter', sans-serif;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 40px;
    margin-bottom: 20px;
    line-height: 1.3;
}

.seo-content h3 {
    font-family: 'Inter', sans-serif;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 30px;
    margin-bottom: 15px;
    line-height: 1.3;
}

.seo-content p {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    color: #aaaaaa;
    margin-bottom: 20px;
    text-align: left;
    line-height: 1.8;
}

.seo-content p:last-child {
    margin-bottom: 0;
}

.seo-content p strong {
    color: #cccccc;
    font-weight: 600;
}

.seo-content ul {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    color: #aaaaaa;
    margin: 20px 0;
    padding-left: 30px;
    line-height: 1.8;
}

.seo-content li {
    margin-bottom: 12px;
}

.seo-content li strong {
    color: #cccccc;
    font-weight: 600;
}

/* ===== FAQ 部分样式 ===== */
.seo-content details {
    margin: 20px 0;
    padding: 16px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.seo-content details:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--accent);
}

.seo-content details[open] {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent);
}

.seo-content summary {
    font-family: 'Inter', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--accent);
    cursor: pointer;
    padding: 8px 0;
    user-select: none;
    list-style: none;
    position: relative;
    padding-left: 24px;
}

.seo-content summary::-webkit-details-marker {
    display: none;
}

.seo-content summary::before {
    content: '+';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
    font-size: 1.25rem;
    transition: transform 0.3s ease;
}

.seo-content details[open] summary::before {
    content: '−';
    transform: rotate(180deg);
}

.seo-content details p {
    margin-top: 12px;
    padding-left: 24px;
    color: #aaaaaa;
    font-size: 1rem;
    line-height: 1.7;
}

/* ===== 故障效果（用于模态框标题） ===== */
@keyframes glitch {
    0% {
        text-shadow: 2px 2px rgba(255, 0, 110, 0.5), -2px -2px rgba(0, 240, 255, 0.5);
        transform: translate(0);
    }
    20% {
        text-shadow: -2px -2px rgba(255, 0, 110, 0.5), 2px 2px rgba(0, 240, 255, 0.5);
        transform: translate(-2px, 2px);
    }
    40% {
        text-shadow: 2px -2px rgba(0, 240, 255, 0.5), -2px 2px rgba(255, 0, 110, 0.5);
        transform: translate(2px, -2px);
    }
    60% {
        text-shadow: -2px 2px rgba(255, 0, 110, 0.5), 2px -2px rgba(0, 240, 255, 0.5);
        transform: translate(-2px, -2px);
    }
    80% {
        text-shadow: 2px 2px rgba(0, 240, 255, 0.5), -2px -2px rgba(255, 0, 110, 0.5);
        transform: translate(2px, 2px);
    }
    100% {
        text-shadow: 2px 2px rgba(255, 0, 110, 0.5), -2px -2px rgba(0, 240, 255, 0.5);
        transform: translate(0);
    }
}

.glitch {
    position: relative;
    animation: glitch 3s infinite;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .score-display {
        font-size: 8rem;
    }
    
    .cps-value {
        font-size: 2.5rem;
    }
    
    .countdown-timer {
        font-size: 3rem;
    }
    
    .reactor-core {
        width: 160px;
        height: 160px;
    }
    
    .ad-slot,
    .ad-slot-stealth {
        width: 320px;
    }
    
    .seo-content h1 {
        font-size: 2rem;
    }
    
    .seo-content h2 {
        font-size: 1.5rem;
    }
    
    .seo-content h3 {
        font-size: 1.25rem;
    }
    
    .seo-content p,
    .seo-content ul {
        font-size: 1rem;
    }
    
    .seo-content summary {
        font-size: 1rem;
    }
    
    .seo-content details p {
        font-size: 0.9375rem;
    }
}

@media (max-width: 768px) {
    .mode-selector {
        flex-wrap: wrap;
        max-width: 90%;
        justify-content: center;
    }
    
    .mode-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    
    .score-display {
        font-size: 6rem;
    }
    
    .cps-value {
        font-size: 2rem;
    }
    
    .countdown-timer {
        font-size: 2.5rem;
    }
    
    .reactor-core {
        width: 140px;
        height: 140px;
    }
    
    .leaderboard-panel {
        width: 100%;
        max-width: 320px;
    }
    
    .mission-brief {
        top: 20px;
        left: 20px;
        right: 20px;
        max-width: none;
        padding: 16px;
    }
    
    .mission-brief-title {
        font-size: 0.75rem;
        margin-bottom: 12px;
    }
    
    .mission-brief-item {
        font-size: 0.6875rem;
    }
    
    .modal-content {
        padding: 30px 20px;
    }
    
    .modal-title {
        font-size: 1.5rem;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .seo-content {
        padding: 60px 20px;
    }
    
    .seo-content h1 {
        font-size: 1.75rem;
    }
    
    .seo-content h2 {
        font-size: 1.375rem;
        margin-top: 30px;
    }
    
    .seo-content h3 {
        font-size: 1.125rem;
        margin-top: 24px;
    }
    
    .seo-content p,
    .seo-content ul {
        font-size: 0.9375rem;
    }
    
    .seo-content ul {
        padding-left: 24px;
    }
    
    .seo-content summary {
        font-size: 1rem;
    }
    
    .seo-content details {
        padding: 12px;
    }
    
    .seo-content details p {
        font-size: 0.875rem;
        padding-left: 20px;
    }
}