/* 游戏介绍区域样式 */
.game-intro-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95) 0%, rgba(30, 41, 59, 0.95) 100%);
    position: relative;
    overflow: hidden;
}

.game-intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 106, 0, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.06) 0%, transparent 50%);
    z-index: 1;
}

.game-intro-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.game-intro-section .section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, #ff6a00 0%, #ffffff 50%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* 发售信息区域 */
.release-info {
    margin-bottom: 4rem;
}

.release-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #ff6a00;
    text-align: center;
    position: relative;
}

.release-info h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #ff6a00, transparent);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 106, 0, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 106, 0, 0.1), transparent);
    transition: left 0.6s ease;
}

.info-card:hover::before {
    left: 100%;
}

.info-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 106, 0, 0.4);
    box-shadow: 0 10px 30px rgba(255, 106, 0, 0.15);
}

.info-card strong {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: #ff6a00;
    margin-bottom: 0.5rem;
}

.info-card p {
    color: #e2e8f0;
    line-height: 1.6;
    margin: 0;
}

/* 核心特色区域 */
.core-features, .game-modes {
    margin-bottom: 4rem;
}

.core-features h3, .game-modes h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #3b82f6;
    text-align: center;
    position: relative;
}

.core-features h3::after, .game-modes h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #3b82f6, transparent);
}

.features-grid, .modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card, .mode-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before, .mode-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.6s ease;
}

.feature-card:hover::before, .mode-card:hover::before {
    left: 100%;
}

.feature-card:hover, .mode-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.15);
}

.feature-card h4, .mode-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #3b82f6;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.feature-card h4::before, .mode-card h4::before {
    content: '⚡';
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

.feature-card p, .mode-card p {
    color: #cbd5e1;
    line-height: 1.6;
    margin: 0;
}

/* 技术规格区域 */
.tech-specs {
    margin-bottom: 2rem;
}

.tech-specs h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #10b981;
    text-align: center;
    position: relative;
}

.tech-specs h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #10b981, transparent);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.spec-item:hover {
    transform: translateX(5px);
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.05);
}

.spec-item strong {
    color: #10b981;
    font-weight: 600;
    font-size: 0.95rem;
}

.spec-item span {
    color: #e2e8f0;
    font-size: 0.9rem;
    text-align: right;
    max-width: 60%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .game-intro-section {
        padding: 2rem 0;
    }
    
    .game-intro-container {
        padding: 0 1rem;
    }
    
    .game-intro-section .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    .release-info h3,
    .core-features h3,
    .game-modes h3,
    .tech-specs h3 {
        font-size: 1.5rem;
    }
    
    .info-grid,
    .features-grid,
    .modes-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .spec-item {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .spec-item span {
        max-width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .game-intro-section .section-title {
        font-size: 1.8rem;
        letter-spacing: 1px;
    }
    
    .info-card,
    .feature-card,
    .mode-card {
        padding: 1rem;
    }
    
    .feature-card h4,
    .mode-card h4 {
        font-size: 1.1rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.game-intro-section .section-title {
    animation: fadeInUp 0.8s ease-out;
}

.info-card,
.feature-card,
.mode-card,
.spec-item {
    animation: fadeInUp 0.8s ease-out;
}

.info-card:nth-child(2) { animation-delay: 0.1s; }
.info-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.2s; }
.feature-card:nth-child(4) { animation-delay: 0.3s; }
.mode-card:nth-child(2) { animation-delay: 0.1s; }
.mode-card:nth-child(3) { animation-delay: 0.2s; }
.mode-card:nth-child(4) { animation-delay: 0.3s; }