/* 规则平台样式 - 集成到主网站 */

/* 规则平台主要内容区域 */
.rules-platform-main {
    margin-top: 70px;
    padding: 0;
    background: var(--gray-50);
    min-height: calc(100vh - 70px);
}

/* 统计卡片区域 - 使用主网站的渐变蓝色 */
.rules-stats {
    background: linear-gradient(135deg, var(--gradient-blue-start) 0%, var(--primary-blue) 50%, var(--secondary-blue) 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease-in-out infinite;
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    margin-top: 0;
}

.rules-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    pointer-events: none;
}

/* 渐变动画关键帧 */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.rules-stats h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.rules-stats p {
    font-size: 1.3rem;
    margin-bottom: 50px;
    opacity: 0.9;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px 20px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    display: block;
    margin-bottom: 10px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-label {
    font-size: 1.1rem;
    color: #fff;
    font-weight: 600;
    opacity: 1;
}

/* 功能导航区域 */
.rules-features {
    padding: 80px 0;
    background: var(--white);
    position: relative;
}

.rules-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, var(--light-blue) 0%, var(--white) 20%, var(--white) 80%, var(--light-blue) 100%);
    opacity: 0.3;
    pointer-events: none;
}

.rules-features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--primary-blue);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.rules-features .subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(13, 79, 140, 0.1);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    border: 2px solid transparent;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--light-blue) 0%, rgba(255,255,255,0.5) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(13, 79, 140, 0.2);
    border-color: var(--primary-blue);
    text-decoration: none;
    color: inherit;
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
    display: block;
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
}

.feature-card:hover i {
    color: var(--secondary-blue);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    position: relative;
    z-index: 1;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* 最新动态区域 */
.rules-updates {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--light-blue) 100%);
    position: relative;
}

.rules-updates::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(13, 79, 140, 0.02) 0%, rgba(30, 136, 229, 0.02) 100%);
    pointer-events: none;
}

.rules-updates h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    color: var(--primary-blue);
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.update-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.update-section {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.update-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #2d3748;
    padding-bottom: 10px;
    border-bottom: 2px solid #e2e8f0;
}

.update-list {
    min-height: 200px;
    margin-bottom: 20px;
}

.update-item {
    padding: 15px 0;
    border-bottom: 1px solid #e2e8f0;
    transition: background-color 0.3s ease;
}

.update-item:last-child {
    border-bottom: none;
}

.update-item:hover {
    background-color: #f7fafc;
    margin: 0 -15px;
    padding-left: 15px;
    padding-right: 15px;
    border-radius: 8px;
}

.update-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
    color: #2d3748;
}

.update-item p {
    font-size: 0.9rem;
    color: #718096;
    margin-bottom: 5px;
}

.update-item .meta {
    font-size: 0.8rem;
    color: #a0aec0;
}

.more-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.more-link:hover {
    color: var(--secondary-blue);
    text-decoration: none;
    transform: translateX(5px);
}

.more-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue));
    transition: width 0.3s ease;
}

.more-link:hover::after {
    width: 100%;
}

/* 加载状态 */
.loading {
    text-align: center;
    padding: 40px 20px;
    color: #718096;
}

.loading i {
    font-size: 2rem;
    margin-bottom: 10px;
    display: block;
    animation: spin 1s linear infinite;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #a0aec0;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .rules-stats h1 {
        font-size: 2.5rem;
    }
    
    .rules-stats p {
        font-size: 1.1rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .update-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .rules-features,
    .rules-updates {
        padding: 60px 0;
    }
    
    .rules-features h2,
    .rules-updates h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .rules-platform-main {
        margin-top: 60px;
    }
    
    .rules-stats {
        padding: 40px 0;
    }
    
    .rules-stats h1 {
        font-size: 2rem;
    }
    
    .feature-card,
    .update-section {
        padding: 25px 20px;
    }
    
    .stat-card {
        padding: 20px 15px;
    }
}