/* 忘我风格 - 流体抽象设计系统 */
:root {
    --fluid-primary: #ff4d4d;
    --fluid-secondary: #4d79ff;
    --fluid-accent: #9c27b0;
    --fluid-bg: #f8f5f2;
    --fluid-text: #33323d;
    --fluid-shape: polygon(0 0, 100% 0, 100% 80%, 80% 100%, 0 100%);
    --fluid-shadow: 8px 8px 0px rgba(0, 0, 0, 0.15);
  }
  
  @keyframes fluidGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Space Grotesk', sans-serif;
  }
  
  body {
    background: var(--fluid-bg);
    color: var(--fluid-text);
    overflow-x: hidden;
    line-height: 1.7;
  }
  
  /* 抽象头部设计 */
  header {
    background: linear-gradient(135deg, var(--fluid-primary), var(--fluid-secondary));
    background-size: 200% 200%;
    animation: fluidGradient 15s ease infinite;
    clip-path: var(--fluid-shape);
    height: 120px;
    padding: 0 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    margin-bottom: 60px;
    box-shadow: var(--fluid-shadow);
  }
  
  .logo {
    font-size: 2.5rem;
    font-weight: 900;
    background: white;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    transform: rotate(-5deg);
  }
  
  nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
  }
  
  nav a {
    color: white;
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: rgba(255,255,255,0.2);
  }
  
  nav a:hover {
    transform: translateY(-3px) scale(1.05);
    background: white;
    color: var(--fluid-primary);
  }
  
  /* 非对称网格容器 */
  .fluid-container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 2rem;
  }
  
  /* 抽象内容卡片 */
  .fluid-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--fluid-shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-style: preserve-3d;
    margin-bottom: 2rem;
  }
  
  .fluid-card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: 15px 15px 0px rgba(0, 0, 0, 0.1);
  }
  
  .card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    clip-path: polygon(0 0, 100% 0, 100% 80%, 0 100%);
  }
  
  .card-content {
    padding: 1.5rem;
    position: relative;
  }
  
  .card-content::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 20px;
    width: 40px;
    height: 40px;
    background: var(--fluid-accent);
    border-radius: 50%;
    z-index: -1;
  }
  
  .card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.3;
  }
  
  .card-meta {
    display: flex;
    justify-content: space-between;
    color: #666;
    font-size: 0.9rem;
    margin-top: 1rem;
  }
  
  /* 流体侧边栏 */
  .fluid-sidebar {
    position: sticky;
    top: 2rem;
    align-self: start;
  }
  
  .sidebar-shape {
    background: linear-gradient(45deg, var(--fluid-primary), var(--fluid-accent));
    padding: 2rem;
    border-radius: 0 50px 50px 0;
    clip-path: polygon(0 0, 100% 0, 80% 100%, 0% 100%);
    margin-bottom: 2rem;
    color: white;
  }
  
  .sidebar-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 800;
  }
  
  /* 抽象分页 */
  .fluid-pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
  }
  
  .fluid-pagination a {
    padding: 0.8rem 1.5rem;
    background: white;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: var(--fluid-shadow);
    transition: all 0.3s ease;
  }
  
  .fluid-pagination a:hover {
    background: var(--fluid-primary);
    color: white;
    transform: scale(1.1);
  }
  
  /* 文章详情页 */
  .fluid-article {
    grid-column: 1 / -1;
  }
  
  .article-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .article-title {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--fluid-primary), var(--fluid-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  
  .article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    color: #666;
  }
  
  .article-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 30px;
    clip-path: polygon(0 0, 100% 0, 100% 90%, 0% 100%);
    margin-bottom: 2rem;
    box-shadow: var(--fluid-shadow);
  }
  
  .article-content {
    column-count: 2;
    column-gap: 2rem;
    margin-bottom: 3rem;
  }
  
  .article-content p {
    margin-bottom: 1.5rem;
    break-inside: avoid;
  }
  
  /* 响应式设计 */
  @media (max-width: 1024px) {
    .fluid-container {
      grid-template-columns: 1fr;
    }
    
    .article-content {
      column-count: 1;
    }
    
    header {
      height: auto;
      padding: 1.5rem 5%;
      flex-direction: column;
      gap: 1rem;
    }
    
    .logo {
      transform: rotate(0);
    }
    
    nav ul {
      flex-wrap: wrap;
      justify-content: center;
    }
  }