:root{--bg-color: #ffffff;--text-primary: #1d1d1f;--text-secondary: #86868b;--accent-color: #0071e3;--divider-color: #d2d2d7;--card-bg: #f5f5f7;--max-width: 1200px;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif, "Apple Color Emoji", "Segoe UI Emoji"}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);line-height:1.47059;font-weight:400;letter-spacing:-.022em;-webkit-font-smoothing:antialiased}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.hero{padding:120px 0 60px;text-align:center}.hero h1{font-size:56px;line-height:1.07143;font-weight:600;letter-spacing:-.005em;margin-bottom:8px}.hero .subtitle{font-size:24px;line-height:1.16667;font-weight:400;color:var(--text-secondary);max-width:600px;margin:0 auto 40px}.divider{height:1px;background-color:var(--divider-color);width:100%;max-width:80px;margin:0 auto}.projects{padding:80px 0}.section-title{font-size:32px;line-height:1.125;font-weight:600;letter-spacing:.004em;margin-bottom:48px}.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}.project-card{background:var(--card-bg);border-radius:18px;padding:32px;text-decoration:none;color:inherit;transition:transform .3s cubic-bezier(.4,0,.2,1),background-color .3s ease;display:flex;flex-direction:column;justify-content:space-between;min-height:200px}.project-card:hover{transform:scale(1.02);background-color:#f0f0f2}.project-card h3{font-size:24px;line-height:1.16667;font-weight:600;margin-bottom:12px}.project-card p{font-size:17px;line-height:1.47059;color:var(--text-secondary)}.project-link{margin-top:24px;font-size:17px;color:var(--accent-color);font-weight:400;display:flex;align-items:center}.project-link:after{content:"→";margin-left:4px;transition:transform .2s ease}.project-card:hover .project-link:after{transform:translate(4px)}.footer{padding:40px 0;border-top:1px solid var(--divider-color);text-align:center;color:var(--text-secondary);font-size:12px}.fade-in{opacity:0;transform:translateY(20px);animation:fadeIn .8s cubic-bezier(.4,0,.2,1) forwards}@keyframes fadeIn{to{opacity:1;transform:translateY(0)}}.hero h1{animation-delay:.1s}.hero .subtitle{animation-delay:.2s}.hero .divider{animation-delay:.3s}.section-title{animation-delay:.4s}@media (max-width: 734px){.hero h1{font-size:40px}.hero .subtitle{font-size:19px}.project-grid{grid-template-columns:1fr}}