:root{--primary:#4f65f0;--primary-hover:#4f46e5;--accent:#dca846;--bg:#f7f9fe;--card:#fff;--card-muted:#f1f3f8;--text:#111827;--text-secondary:#4b5563;--border:#e5e7eb;--shadow:0 2px 12px rgba(0,0,0,.06);--shadow-hover:0 8px 30px rgba(79,101,240,.12);--radius:16px;--radius-sm:10px;--radius-xs:8px;--font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif}[data-theme=dark]{--bg:#18171d;--card:#1e1e1e;--card-muted:#252528;--text:#e5e7eb;--text-secondary:#9ca3af;--border:#2d2d30;--shadow:0 2px 12px rgba(0,0,0,.3);--shadow-hover:0 8px 30px rgba(79,101,240,.2)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);transition:background .3s ease,color .3s ease;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s}img{display:block;max-width:100%}.header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(247,249,254,.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:background .3s,border-color .3s}[data-theme=dark] .header{background:rgba(24,23,29,.8)}.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;justify-content:space-between}.header-inner,.logo{display:flex;align-items:center}.logo{font-size:1.3rem;font-weight:700;color:var(--primary);gap:8px;cursor:pointer}.logo span{color:var(--text)}.nav{display:flex;align-items:center;gap:6px}.nav a{padding:8px 14px;border-radius:var(--radius-xs);font-size:.92rem;color:var(--text-secondary);font-weight:500;transition:all .2s}.nav a.active,.nav 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.3s}.hero-card:hover{transform:translateY(-2px);box-shadow:0 10px 40px rgba(79,101,240,.3)}.hero-card h1{font-size:1.6rem;font-weight:700;margin-bottom:12px;line-height:1.4}.hero-card p{font-size:.95rem;opacity:.9;margin-bottom:16px}.hero-tags{display:flex;gap:8px;flex-wrap:wrap}.hero-tags span{background:hsla(0,0%,100%,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:5px 14px;border-radius:20px;font-size:.82rem;font-weight:500;transition:background .2s;cursor:pointer}.hero-tags span:hover{background:hsla(0,0%,100%,.35)}.hero-decoration{position:absolute;right:-20px;top:-20px;font-size:7rem;opacity:.12;transform:rotate(-15deg);pointer-events:none}.hero-side{display:flex;flex-direction:column;gap:16px}.hero-banner{background:var(--card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);flex:1 1;display:flex;flex-direction:column;justify-content:center;transition:all 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12px rgba(0,0,0,.15))}.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1;justify-content:center}.post-cat{display:inline-block;align-self:flex-start;font-size:.75rem;font-weight:600;color:var(--primary);background:rgba(79,101,240,.08);padding:3px 10px;border-radius:6px;margin-bottom:10px}.post-card h3{font-size:1.05rem;font-weight:600;line-height:1.5;margin-bottom:8px;color:var(--text)}.post-card h3,.post-excerpt{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post-excerpt{font-size:.85rem;line-height:1.6;margin-bottom:12px;flex:1 1}.post-excerpt,.post-meta{color:var(--text-secondary)}.post-meta{display:flex;align-items:center;justify-content:space-between;font-size:.8rem}.post-tags{display:flex;gap:6px;flex-wrap:wrap}.post-tags span{background:var(--card-muted);padding:2px 8px;border-radius:6px;font-size:.72rem}.post-date{font-size:.78rem;white-space:nowrap}.empty-state{grid-column:1/-1;padding:48px 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img{width:100%;height:100%;object-fit:cover;display:block}.author-name{font-size:1.15rem;font-weight:700;margin-bottom:4px}.author-bio{font-size:.85rem;color:var(--text-secondary);margin-bottom:16px;line-height:1.6}.author-socials{gap:10px}.author-socials,.author-socials a{display:flex;justify-content:center}.author-socials a{width:36px;height:36px;border-radius:50%;background:var(--card-muted);align-items:center;font-size:1rem;transition:all .2s}.author-socials a:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:12px;gap:12px}.stat-item{background:var(--card-muted);border-radius:var(--radius-sm);padding:14px;text-align:center}.stat-num{font-size:1.3rem;font-weight:700;color:var(--primary)}.stat-label{font-size:.75rem;color:var(--text-secondary);margin-top:2px}.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}.tag-cloud a{background:var(--card-muted);padding:5px 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h2{margin-bottom:10px;font-size:1.2rem}.links-welcome p{color:var(--text-secondary);margin-bottom:16px}.back-home{display:inline-block;color:var(--primary);font-size:.9rem}@media (max-width:720px){.links-grid{grid-template-columns:1fr}}.site-stats{background:var(--card);border-top:1px solid var(--border);padding:28px 20px}.site-stats-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}.site-stats-item{background:var(--card-muted);border-radius:var(--radius-sm);padding:16px 36px;text-align:center;min-width:120px}.footer{background:var(--card);border-top:1px solid var(--border);padding:28px 20px;text-align:center}.footer-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;font-size:.85rem;color:var(--text-secondary)}.footer a{color:var(--primary)}.footer 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14px;padding-bottom:8px;border-bottom:1px solid var(--border)}.article-content h3{font-size:1.12rem;font-weight:600;margin:26px 0 10px}.article-content p{margin-bottom:16px}.article-content ol,.article-content ul{margin:0 0 16px 22px}.article-content li{margin-bottom:6px}.article-content li>ol,.article-content li>ul{margin-top:6px}.article-content code{background:var(--card-muted);padding:2px 8px;border-radius:6px;font-size:.88em;font-family:SF Mono,Fira Code,ui-monospace,monospace}.article-content pre.code-block{background:#1e1e1e;border-radius:var(--radius-sm);overflow:hidden;margin-bottom:20px}.article-content pre.code-block .code-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#2d2d30}.article-content pre.code-block .code-bar .dot{width:12px;height:12px;border-radius:50%}.article-content pre.code-block .code-bar .dot.red{background:#ff5f57}.article-content pre.code-block .code-bar .dot.yellow{background:#febc2e}.article-content pre.code-block .code-bar .dot.green{background:#28c840}.article-content pre.code-block .code-bar .code-lang{margin-left:auto;color:#9ca3af;font-size:.75rem;text-transform:uppercase;letter-spacing:.5px}.article-content pre.code-block code{display:block;background:none;padding:18px 20px;color:#e5e7eb;font-size:.88rem;line-height:1.7;overflow-x:auto}.article-content blockquote{border-left:4px solid var(--primary);padding:14px 20px;margin:0 0 18px;background:var(--card-muted);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text-secondary)}.article-content .todo-item{display:flex;align-items:flex-start;gap:10px;margin-bottom:8px}.article-content .todo-check{color:var(--primary);flex-shrink:0}.article-content .todo-check.checked{color:var(--accent)}.article-content .todo-text.done{color:var(--text-secondary);text-decoration:line-through}.article-content figure{margin:0 0 20px}.article-content figure img{border-radius:var(--radius-sm);margin:0 auto}.article-content figcaption{text-align:center;font-size:.8rem;color:var(--text-secondary);margin-top:8px}.article-content .callout{display:flex;gap:12px;background:rgba(79,101,240,.07);border:1px solid rgba(79,101,240,.15);border-radius:var(--radius-sm);padding:16px 18px;margin-bottom:18px}.article-content .callout-icon{font-size:1.2rem;flex-shrink:0}.article-content .callout-children{margin-top:8px}.article-content details.toggle{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden}.article-content details.toggle summary{cursor:pointer;padding:12px 16px;background:var(--card-muted);font-weight:500;-webkit-user-select:none;-moz-user-select:none;user-select:none}.article-content details.toggle .toggle-body{padding:12px 16px}.article-content hr.article-hr{border:none;border-top:1px solid var(--border);margin:28px 0}.article-content .link-card{display:flex;flex-direction:column;gap:4px;border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:16px;transition:all .2s}.article-content .link-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover)}.article-content .link-card-title{font-weight:600;font-size:.92rem}.article-content .link-card-url{font-size:.8rem;color:var(--text-secondary);word-break:break-all}.article-content a{color:var(--primary)}.article-content a:hover{text-decoration:underline}.notion-inline-equation{display:inline-block;padding:0 2px;vertical-align:middle}.notion-block-equation{overflow-x:auto;overflow-y:hidden;padding:12px 0;margin-bottom:18px;text-align:center}.notion-block-equation .katex-display{margin:0}.article-content .katex{font-size:1.05em}[data-theme=dark] .katex{color:var(--text)}.article-footer{margin-top:40px;padding:24px;background:var(--card-muted);border-radius:var(--radius);text-align:center}.article-tags-row{margin-bottom:20px}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}.page-heading h1{font-size:1.5rem;font-weight:700}.page-heading .page-sub{color:var(--text-secondary);font-size:.9rem}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeInUp .5s ease forwards}@media (max-width:900px){.main-layout{grid-template-columns:1fr}.sidebar{position:static;order:-1}.hero{grid-template-columns:1fr}.post-card{flex-direction:column}.post-cover{width:100%;height:200px;min-height:0}}@media (max-width:600px){.nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--card);padding:16px;border-bottom:1px solid var(--border);gap:4px;box-shadow:var(--shadow)}.nav.open{display:flex}.nav.open a{width:100%}.menu-btn{display:flex}.hero-card h1{font-size:1.3rem}.hero-card{padding:24px}.footer-inner{flex-direction:column;gap:8px}.article-title{font-size:1.4rem}.article-cover{height:200px}.back-top{right:16px;bottom:16px}}