Frontend Design

/* 极简编辑风格 */
--font-heading: 'Playfair Display', serif;
--font-body: 'Source Sans Pro', sans-serif;

/* 现代科技风格 */
--font-heading: 'Space Mono', monospace;
--font-body: 'DM Sans', sans-serif;

/* 优雅奢华风格 */
--font-heading: 'Cormorant Garamond', serif;
--font-body: 'Lato', sans-serif;

:root {
  /* 极简黑白 */
  --color-primary: #000000;
  --color-secondary: #ffffff;
  --color-accent: #ff3366;

  /* 复古未来 */
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #00fff5;
  --color-highlight: #ff006e;

  /* 自然有机 */
  --color-primary: #2d6a4f;
  --color-secondary: #52b788;
  --color-accent: #ffc857;
}

/* 页面加载 - 元素逐个淡入 */
.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
  opacity: 0;
}

.fade-in-up:nth-child(1) { animation-delay: 0.1s; }
.fade-in-up:nth-child(2) { animation-delay: 0.2s; }
.fade-in-up:nth-child(3) { animation-delay: 0.3s; }

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

/* 悬停效果 */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

/* 不对称网格 */
.grid-asymmetric {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}

/* 重叠效果 */
.overlap-container {
  position: relative;
}

.overlap-item {
  position: absolute;
  z-index: 2;
  transform: translate(-20%, -20%);
}

/* 对角线流程 */
.diagonal-section {
  transform: skewY(-3deg);
  padding: 100px 0;
}

.diagonal-section > * {
  transform: skewY(3deg);
}

/* 渐变网格背景 */
.gradient-grid {
  background:
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  background-size: 50px 50px, 50px 50px, 100% 100%;
}

/* 噪点纹理 */
.noise-texture {
  position: relative;
}

.noise-texture::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.05'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* 玻璃态效果 */
.glass-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

// 示例：复杂的动画卡片
<motion.div
  initial={{ opacity: 0, scale: 0.8, rotateX: -15 }}
  animate={{ opacity: 1, scale: 1, rotateX: 0 }}
  whileHover={{
    scale: 1.05,
    rotateY: 5,
    boxShadow: "0 25px 50px rgba(0,0,0,0.2)"
  }}
  transition={{
    type: "spring",
    stiffness: 300,
    damping: 20
  }}
>
  {/* 复杂内容 */}
</motion.div>

/* 示例：精致的极简主义 */
.minimal-card {
  padding: 60px;
  background: #ffffff;
  border: 1px solid rgba(0,0,0,0.08);
  transition: border-color 0.3s ease;
}

.minimal-card:hover {
  border-color: rgba(0,0,0,0.2);
}

.minimal-card h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.5rem;
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 20px 0;
}