:root{--color-bg: #ffffff;--color-text: #1a1a1a;--color-muted: #666666;--color-primary: #2563eb;--color-border: #e5e7eb;--color-card-bg: #f9fafb;--font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--max-width: 720px;--space-sm: .5rem;--space-md: 1rem;--space-lg: 2rem;--space-xl: 4rem;--radius: 8px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased}a{color:var(--color-primary);text-decoration:none;transition:opacity .2s}a:hover{opacity:.7}img{max-width:100%;height:auto}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md)}.section{padding:var(--space-xl) 0}.section-title{font-size:1.5rem;font-weight:700;margin-bottom:var(--space-lg);padding-bottom:var(--space-sm);border-bottom:2px solid var(--color-border)}.site-header{position:sticky;top:0;z-index:100;background:#ffffffe6;backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.site-header .container{display:flex;justify-content:space-between;align-items:center;padding-top:var(--space-md);padding-bottom:var(--space-md)}.site-logo{font-weight:700;font-size:1.1rem;color:var(--color-text);text-decoration:none}.site-nav{display:flex;gap:var(--space-lg);list-style:none}.site-nav a{color:var(--color-muted);font-size:.9rem;text-decoration:none;transition:color .2s}.site-nav a:hover{color:var(--color-text)}.hero{padding:var(--space-xl) 0;text-align:center}.hero-avatar{width:100px;height:100px;border-radius:50%;background:var(--color-border);margin:0 auto var(--space-lg);display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--color-muted);overflow:hidden}.hero-name{font-size:2.2rem;font-weight:800;margin-bottom:var(--space-sm)}.hero-title{font-size:1.1rem;color:var(--color-muted);font-weight:400}.hero-tagline{font-size:1rem;color:var(--color-muted);margin-top:var(--space-md)}.about-text{font-size:1rem;color:var(--color-muted);max-width:600px}.skills-list{display:flex;flex-wrap:wrap;gap:var(--space-sm);list-style:none}.skill-tag{padding:.3rem .8rem;background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:2rem;font-size:.85rem;color:var(--color-text)}.timeline{list-style:none;display:flex;flex-direction:column;gap:var(--space-lg)}.timeline-item{padding-left:var(--space-lg);border-left:2px solid var(--color-border)}.timeline-type{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-primary);font-weight:600;margin-bottom:var(--space-sm)}.timeline-title{font-weight:600;font-size:1.05rem}.timeline-detail{color:var(--color-muted);font-size:.9rem}.timeline-time{font-size:.8rem;color:var(--color-muted);margin-top:.25rem}.timeline-courses{font-size:.85rem;color:var(--color-muted);margin-top:.4rem;line-height:1.6}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-lg)}.project-card{padding:var(--space-lg);background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius);transition:box-shadow .2s}.project-card:hover{box-shadow:0 4px 12px #0000000d}.project-name{font-weight:600;margin-bottom:var(--space-sm)}.project-desc{font-size:.9rem;color:var(--color-muted);margin-bottom:var(--space-sm)}.project-link{font-size:.85rem}.contact-links{display:flex;gap:var(--space-lg);flex-wrap:wrap}.contact-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius);font-size:.95rem;color:var(--color-text);text-decoration:none;transition:background .2s}.contact-item:hover{background:var(--color-border)}.site-footer{text-align:center;padding:var(--space-lg) 0;color:var(--color-muted);font-size:.85rem;border-top:1px solid var(--color-border)}.skills-categories[data-astro-cid-ab4ihpzs]{display:flex;flex-direction:column;gap:1.5rem}.skill-category[data-astro-cid-ab4ihpzs]{padding:1rem;background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius)}.skill-cat-name[data-astro-cid-ab4ihpzs]{font-size:.95rem;font-weight:600;color:var(--color-primary);margin-bottom:.5rem}.skill-items[data-astro-cid-ab4ihpzs]{list-style:disc;padding-left:1.2rem;display:flex;flex-direction:column;gap:.3rem}.skill-item[data-astro-cid-ab4ihpzs]{font-size:.9rem;color:var(--color-text)}.project-card[data-astro-cid-amng4zvp]{background:var(--color-card-bg);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s,border-color .2s}.project-card[data-astro-cid-amng4zvp]:hover{border-color:var(--color-primary)}.project-card[data-astro-cid-amng4zvp][open]{box-shadow:0 4px 12px #00000014;border-color:var(--color-primary)}.project-summary[data-astro-cid-amng4zvp]{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.25rem;cursor:pointer;list-style:none;user-select:none;font-weight:600;font-size:.95rem;background:linear-gradient(to right,transparent,var(--color-card-bg));transition:background .2s}.project-summary[data-astro-cid-amng4zvp]:hover{background:#2563eb0d}.project-summary[data-astro-cid-amng4zvp]::-webkit-details-marker{display:none}.project-summary[data-astro-cid-amng4zvp]:before{content:"▶";font-size:.65rem;margin-right:.6rem;color:var(--color-primary);transition:transform .2s;flex-shrink:0}.project-card[data-astro-cid-amng4zvp][open] .project-summary[data-astro-cid-amng4zvp]:before{transform:rotate(90deg)}.project-arrow[data-astro-cid-amng4zvp]{font-size:.7rem;transition:transform .2s;flex-shrink:0;margin-left:auto;color:var(--color-muted)}.project-card[data-astro-cid-amng4zvp][open] .project-arrow[data-astro-cid-amng4zvp]{transform:rotate(180deg)}.project-body[data-astro-cid-amng4zvp]{padding:0 1.25rem 1.25rem}.project-desc[data-astro-cid-amng4zvp]{font-size:.9rem;color:var(--color-muted);margin-bottom:.75rem}.project-details[data-astro-cid-amng4zvp]{padding-left:1.2rem;display:flex;flex-direction:column;gap:.4rem;font-size:.88rem;color:var(--color-text)}.project-link[data-astro-cid-amng4zvp]{display:inline-block;margin-top:.75rem;font-size:.85rem}