/* 博客Banner样式 */
.blog-banner {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 80px 0;
    margin-bottom: 0;
    overflow: hidden;
}

/* 备用渐变色方案 */
.blog-banner.gradient-blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.blog-banner.gradient-purple {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.blog-banner.gradient-orange {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
}

.blog-banner.gradient-green {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
}

.blog-banner.gradient-tech {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.blog-banner.gradient-sunset {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* 动态背景效果 */
.blog-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    pointer-events: none;
}

/* 装饰性元素 */
.blog-banner::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* 遮罩层 */
.blog-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

/* Banner内容 */
.blog-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    max-width: 800px;
    margin: 0 auto;
}

.blog-banner-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.blog-banner-content p {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 0;
    opacity: 0.95;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .blog-banner {
        padding: 60px 0;
    }
    
    .blog-banner-content h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .blog-banner-content p {
        font-size: 1.1rem;
    }
    
    .blog-banner::after {
        width: 200px;
        height: 200px;
        right: -5%;
    }
}

@media (max-width: 480px) {
    .blog-banner {
        padding: 50px 0;
    }
    
    .blog-banner-content h1 {
        font-size: 2rem;
    }
    
    .blog-banner-content p {
        font-size: 1rem;
    }
}

/* 特殊效果：鼠标悬停时的微动画 */
.blog-banner:hover::after {
    animation-duration: 4s;
}

/* 加载动画 */
.blog-banner-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    .blog-banner {
        background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    }
    
    .blog-banner-overlay {
        background: rgba(0, 0, 0, 0.3);
    }
}