:root{--bg: #f5f5f7;--bg-soft: #fbfbfd;--bg-elevated: #ffffff;--ink: #1d1d1f;--ink-2: #6e6e73;--ink-3: #86868b;--line: rgba(0, 0, 0, .06);--line-strong: rgba(0, 0, 0, .1);--blue: #0066cc;--blue-soft: #2997ff;--blue-fill: #0071e3;--hero-title-from: #1d1d1f;--hero-title-to: #3a3a3c;--code-bg: #1d1d1f;--code-fg: #f5f5f7;--inline-code-bg: rgba(0, 0, 0, .05);--ghost-btn-bg: rgba(0, 0, 0, .05);--ghost-btn-bg-hover: rgba(0, 0, 0, .08);--tile-fallback: linear-gradient(145deg, #f0f0f5, #e4e4ea);--nav-h: 52px;--max: 1080px;--read: 720px;--radius: 20px;--radius-lg: 28px;--shadow-sm: 0 2px 12px rgba(0, 0, 0, .04);--shadow-md: 0 12px 40px rgba(0, 0, 0, .08);--shadow-lg: 0 24px 64px rgba(0, 0, 0, .12);--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--ease: cubic-bezier(.28, .11, .32, 1);color:var(--ink);background:var(--bg);font-family:var(--font);font-size:17px;line-height:1.47059;font-weight:400;letter-spacing:-.022em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}html.dark{--bg: #000000;--bg-soft: #0b0b0c;--bg-elevated: #1c1c1e;--ink: #f5f5f7;--ink-2: #a1a1a6;--ink-3: #6e6e73;--line: rgba(255, 255, 255, .08);--line-strong: rgba(255, 255, 255, .14);--blue: #2997ff;--blue-soft: #64b5ff;--blue-fill: #0a84ff;--hero-title-from: #f5f5f7;--hero-title-to: #d2d2d7;--code-bg: #111113;--code-fg: #f5f5f7;--inline-code-bg: rgba(255, 255, 255, .08);--ghost-btn-bg: rgba(255, 255, 255, .08);--ghost-btn-bg-hover: rgba(255, 255, 255, .12);--tile-fallback: linear-gradient(145deg, #2c2c2e, #1c1c1e);--shadow-sm: 0 2px 12px rgba(0, 0, 0, .35);--shadow-md: 0 12px 40px rgba(0, 0, 0, .45);--shadow-lg: 0 24px 64px rgba(0, 0, 0, .55)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}html,body{margin:0;min-height:100%}body{background:var(--bg);color:var(--ink);transition:background .25s var(--ease),color .2s var(--ease)}a{color:var(--blue);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease),background .2s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease)}.ambient{pointer-events:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;background:radial-gradient(ellipse 80% 50% at 10% -10%,rgba(0,113,227,.09),transparent 55%),radial-gradient(ellipse 60% 40% at 90% 0%,rgba(175,82,222,.06),transparent 50%),radial-gradient(ellipse 50% 30% at 50% 100%,rgba(0,113,227,.04),transparent 60%)}html.dark .ambient{background:radial-gradient(ellipse 80% 50% at 10% -10%,rgba(10,132,255,.16),transparent 55%),radial-gradient(ellipse 60% 40% at 90% 0%,rgba(191,90,242,.1),transparent 50%),radial-gradient(ellipse 50% 30% at 50% 100%,rgba(10,132,255,.08),transparent 60%)}.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);display:flex;align-items:center;justify-content:center;background:#161617b8;backdrop-filter:saturate(180%) blur(22px);-webkit-backdrop-filter:saturate(180%) blur(22px);border-bottom:1px solid rgba(255,255,255,.06);transition:background .25s var(--ease),box-shadow .25s var(--ease)}.nav.is-scrolled{background:#161617e0;box-shadow:0 8px 32px #0000002e}html.dark .nav{background:#000000b8;border-bottom-color:#ffffff14}html.dark .nav.is-scrolled{background:#000000e0}.nav-inner{width:min(var(--max),calc(100% - 32px));display:flex;align-items:center;justify-content:space-between;gap:1rem}.nav-end{display:flex;align-items:center;gap:.5rem;min-width:0;flex:1;justify-content:flex-end}.nav-brand{color:#f5f5f7;display:inline-flex;align-items:center;gap:.55rem;opacity:.96;min-width:0;flex-shrink:0}.nav-brand:hover{opacity:1;color:#fff}.nav-brand-logo{display:block;width:28px;height:28px;object-fit:cover;object-position:center 30%;border-radius:8px;background:#fff;box-shadow:0 0 0 1px #ffffff1a;flex-shrink:0}.nav-brand-text{font-size:15px;font-weight:600;letter-spacing:-.02em}.nav-cats{display:flex;align-items:center;gap:.15rem;overflow-x:auto;max-width:min(58vw,640px);scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 90%,transparent);mask-image:linear-gradient(90deg,#000 90%,transparent)}.nav-cats::-webkit-scrollbar{display:none}.nav-cats a{color:#ffffffb3;font-size:12px;font-weight:400;letter-spacing:-.01em;padding:.38rem .85rem;border-radius:980px;white-space:nowrap}.nav-cats a:hover{color:#fff;background:#ffffff1a}.nav-cats a.active{color:#fff;background:#ffffff29;font-weight:500}.theme-toggle{flex-shrink:0;width:34px;height:34px;display:inline-grid;place-items:center;border:1px solid rgba(255,255,255,.14);border-radius:980px;background:#ffffff14;color:#f5f5f7;cursor:pointer;font-size:14px;line-height:1;padding:0;transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}.theme-toggle:hover{background:#ffffff29;border-color:#ffffff38}.theme-toggle:active{transform:scale(.96)}.theme-icon{display:block;font-size:15px}.page{position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}.page-body{flex:1;width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;min-height:44px;padding:.65rem 1.35rem;border-radius:980px;font-size:15px;font-weight:500;letter-spacing:-.01em;border:none;cursor:pointer}.btn-primary{background:var(--blue-fill);color:#fff;box-shadow:0 4px 16px #0071e347}html.dark .btn-primary{box-shadow:0 4px 16px #0a84ff59}.btn-primary:hover{background:#0077ed;color:#fff;transform:translateY(-1px);box-shadow:0 8px 22px #0071e359}html.dark .btn-primary:hover{background:#409cff}.btn-ghost{background:var(--ghost-btn-bg);color:var(--ink)}.btn-ghost:hover{background:var(--ghost-btn-bg-hover);color:var(--ink)}.hero{position:relative;text-align:center;padding:clamp(3.5rem,11vw,6.5rem) 1.25rem clamp(2.5rem,6vw,3.75rem);overflow:hidden}.hero-glow{position:absolute;inset:-20% 10% auto;height:70%;background:radial-gradient(circle at 30% 40%,rgba(0,113,227,.14),transparent 45%),radial-gradient(circle at 70% 30%,rgba(175,82,222,.1),transparent 40%);filter:blur(8px);pointer-events:none}html.dark .hero-glow{background:radial-gradient(circle at 30% 40%,rgba(10,132,255,.22),transparent 45%),radial-gradient(circle at 70% 30%,rgba(191,90,242,.16),transparent 40%)}.hero-inner{position:relative;z-index:1;max-width:40rem;margin:0 auto;animation:rise .7s var(--ease) both}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.hero-logo{display:block;width:84px;height:84px;margin:0 auto 1rem;object-fit:contain;border-radius:20px;background:var(--bg-elevated);box-shadow:var(--shadow-md),0 0 0 1px var(--line)}.hero-kicker{margin:0 0 .75rem;font-size:14px;font-weight:600;color:var(--blue);letter-spacing:.02em;text-transform:none}.hero h1{margin:0 auto;max-width:12em;font-size:clamp(40px,7.5vw,64px);font-weight:650;line-height:1.06;letter-spacing:-.038em;color:var(--ink);background:linear-gradient(180deg,var(--hero-title-from) 0%,var(--hero-title-to) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}@supports not (background-clip: text){.hero h1{color:var(--ink);-webkit-text-fill-color:unset}}.hero-lead{margin:1.15rem auto 0;max-width:28em;font-size:clamp(16px,2.2vw,19px);line-height:1.42;color:var(--ink-2);letter-spacing:-.016em}.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1.75rem}.hero-compact{padding:clamp(2.5rem,7vw,4rem) 1.25rem 1.75rem}.hero-compact h1{font-size:clamp(34px,6vw,48px);background:none;-webkit-text-fill-color:unset;color:var(--ink)}.section{width:min(var(--max),calc(100% - 32px));margin:0 auto;padding-bottom:4.5rem}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;margin:0 0 1.5rem}.section-head h2{margin:0;font-size:clamp(22px,3.2vw,28px);font-weight:600;letter-spacing:-.028em}.section-sub{margin:.35rem 0 0;font-size:14px;color:var(--ink-3)}.count-pill{flex-shrink:0;font-size:13px;font-weight:500;color:var(--ink-2);background:var(--ghost-btn-bg);border:1px solid var(--line);padding:.35rem .75rem;border-radius:980px}.featured{display:block;position:relative;overflow:hidden;border-radius:var(--radius-lg);background:#0a0a0b;color:#f5f5f7;min-height:380px;margin-bottom:1.35rem;box-shadow:var(--shadow-lg);transition:transform .4s var(--ease),box-shadow .4s var(--ease)}.featured:hover{transform:translateY(-4px) scale(1.005);box-shadow:0 32px 72px #0000002e;color:#f5f5f7}html.dark .featured:hover{box-shadow:0 32px 72px #0000008c}.featured-media{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(90% 70% at 85% 15%,rgba(0,113,227,.45),transparent 55%),radial-gradient(70% 60% at 8% 90%,rgba(175,82,222,.28),transparent 50%),linear-gradient(155deg,#2c2c2e,#000);transition:transform .6s var(--ease)}.featured:hover .featured-media{transform:scale(1.04)}.featured-media.has-cover{background-size:cover;background-position:center}.featured-media.has-cover:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,rgba(0,0,0,.55) 0%,rgba(0,0,0,.2) 55%,transparent 100%),linear-gradient(180deg,#0000001a,#000000c7)}.featured-body{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:flex-end;min-height:380px;padding:clamp(1.75rem,4vw,2.75rem);max-width:36rem}.featured-badge{align-self:flex-start;margin-bottom:.85rem;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:#ffffff24;border:1px solid rgba(255,255,255,.12);padding:.28rem .65rem;border-radius:980px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.featured .eyebrow{margin:0 0 .5rem;font-size:13px;font-weight:600;color:var(--blue-soft)}.featured h3{margin:0;font-size:clamp(28px,4.2vw,40px);font-weight:600;line-height:1.12;letter-spacing:-.03em;color:#f5f5f7}.featured .summary{margin:.75rem 0 0;font-size:16px;line-height:1.45;color:#ffffffb8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.featured-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1.25rem;flex-wrap:wrap}.featured .cta{font-size:16px;font-weight:500;color:var(--blue-soft)}.featured:hover .cta{text-decoration:underline;text-underline-offset:3px}.featured-date{font-size:13px;color:#ffffff80}.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.15rem}@media(max-width:960px){.post-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.post-grid{grid-template-columns:1fr}}.post-tile{display:flex;flex-direction:column;background:var(--bg-elevated);border-radius:var(--radius);overflow:hidden;min-height:100%;border:1px solid var(--line);box-shadow:var(--shadow-sm);color:inherit;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}.post-tile:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:transparent;color:inherit}.tile-cover{aspect-ratio:16 / 10;background-size:cover;background-position:center;background-color:var(--bg)}.tile-cover-fallback{display:grid;place-items:center;background:radial-gradient(circle at 30% 20%,rgba(0,113,227,.18),transparent 50%),radial-gradient(circle at 80% 80%,rgba(175,82,222,.14),transparent 45%),var(--tile-fallback)}html.dark .tile-cover-fallback{background:radial-gradient(circle at 30% 20%,rgba(10,132,255,.22),transparent 50%),radial-gradient(circle at 80% 80%,rgba(191,90,242,.16),transparent 45%),var(--tile-fallback)}.tile-cover-fallback span{font-size:2rem;font-weight:650;color:color-mix(in srgb,var(--ink) 20%,transparent);letter-spacing:-.04em}.tile-body{display:flex;flex-direction:column;flex:1;padding:1.2rem 1.25rem 1.25rem}.post-tile .meta{margin-bottom:.55rem}.post-tile h3{margin:0 0 .5rem;font-size:18px;font-weight:600;letter-spacing:-.022em;line-height:1.25;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.post-tile .summary{margin:0;flex:1;font-size:14px;line-height:1.5;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.post-tile .summary.muted{color:var(--ink-3);font-style:normal}.post-tile .cta{margin-top:1rem;font-size:13px;font-weight:600;color:var(--blue)}.meta{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .5rem;font-size:12px;color:var(--ink-3);letter-spacing:-.01em}.meta .dot{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.55}.chip{color:var(--blue);font-weight:600}.article-wrap{width:min(var(--read),calc(100% - 32px));margin:0 auto;padding:2.5rem 0 4.5rem;animation:rise .55s var(--ease) both}.back-link{display:inline-flex;align-items:center;gap:.35rem;font-size:14px;font-weight:500;color:var(--blue);margin-bottom:1.5rem;padding:.35rem .75rem .35rem .5rem;margin-left:-.5rem;border-radius:980px}.back-link:hover{background:color-mix(in srgb,var(--blue) 12%,transparent)}.article-header{margin-bottom:1.75rem}.article h1{margin:.65rem 0 0;font-size:clamp(34px,5.2vw,48px);font-weight:650;line-height:1.1;letter-spacing:-.034em;color:var(--ink)}.article-dek{margin:1rem 0 0;font-size:19px;line-height:1.45;color:var(--ink-2);letter-spacing:-.016em}.article>.meta,.article-header .meta{font-size:13px}.cover-wrap{margin:0 0 2.25rem}.cover{display:block;width:100%;max-height:420px;object-fit:cover;border-radius:var(--radius);background:var(--bg-elevated);box-shadow:var(--shadow-md)}.markdown{font-size:18px;line-height:1.7;letter-spacing:-.014em;color:var(--ink)}.markdown>*:first-child{margin-top:0}.markdown h2{margin:2.5rem 0 .75rem;font-size:28px;font-weight:600;letter-spacing:-.025em;line-height:1.2}.markdown h3{margin:1.85rem 0 .55rem;font-size:22px;font-weight:600;letter-spacing:-.02em}.markdown p,.markdown ul,.markdown ol{margin:1.05rem 0}.markdown a:hover{text-decoration:underline;text-underline-offset:2px}.markdown pre{background:var(--code-bg);color:var(--code-fg);padding:1.15rem 1.25rem;border-radius:16px;overflow-x:auto;font-size:14px;line-height:1.55;box-shadow:inset 0 0 0 1px var(--line)}.markdown code{font-family:SF Mono,ui-monospace,Menlo,Consolas,monospace;font-size:.9em}.markdown p code,.markdown li code{background:var(--inline-code-bg);padding:.12em .4em;border-radius:6px;font-size:.86em}.markdown blockquote{margin:1.5rem 0;padding:.85rem 1.15rem;border-left:3px solid var(--blue-fill);background:color-mix(in srgb,var(--blue-fill) 10%,transparent);border-radius:0 12px 12px 0;color:var(--ink-2)}.markdown img{max-width:100%;border-radius:14px;margin:1.4rem 0;box-shadow:var(--shadow-sm)}.markdown hr{border:none;border-top:1px solid var(--line);margin:2.75rem 0}.article-end{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line)}.empty,.state{text-align:center;padding:4rem 1.25rem;color:var(--ink-3);font-size:17px;letter-spacing:-.016em;background:var(--bg-elevated);border:1px dashed var(--line-strong);border-radius:var(--radius)}.empty-icon{font-size:1.75rem;margin-bottom:.75rem;opacity:.45}.empty strong{display:block;color:var(--ink);font-size:18px;margin-bottom:.4rem}.empty p{margin:0;font-size:14px;color:var(--ink-3)}.spinner{display:inline-block;width:1em;height:1em;margin-right:.5rem;border:2px solid var(--line-strong);border-top-color:var(--blue);border-radius:50%;vertical-align:-.15em;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-box{max-width:420px;margin:5rem auto;padding:2.25rem 2rem;text-align:center;background:var(--bg-elevated);border-radius:var(--radius);box-shadow:var(--shadow-md);border:1px solid var(--line)}.error-box strong{display:block;font-size:22px;font-weight:600;letter-spacing:-.022em;margin-bottom:.55rem}.error-box p{margin:0 0 1.25rem;color:var(--ink-2);font-size:15px}.error-box code{font-family:SF Mono,ui-monospace,Menlo,monospace;font-size:.9em;background:var(--bg);padding:.12em .4em;border-radius:5px}.footer{margin-top:auto;border-top:1px solid var(--line);background:linear-gradient(180deg,transparent,var(--bg-soft));padding:2.25rem 0 1.75rem}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:0 auto}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;flex-wrap:wrap;padding-bottom:1.25rem;border-bottom:1px solid var(--line)}.footer-brand{display:inline-flex;align-items:center;gap:.85rem;min-width:0}.footer-brand strong{display:block;font-size:15px;font-weight:600;color:var(--ink);letter-spacing:-.02em}.footer-brand p{margin:.15rem 0 0;font-size:12px;color:var(--ink-3)}.footer-logo{width:36px;height:36px;object-fit:cover;object-position:center 30%;border-radius:10px;background:var(--bg-elevated);box-shadow:0 0 0 1px var(--line);flex-shrink:0}.footer-links a{color:var(--ink-2);font-size:13px;font-weight:500;margin-left:1.1rem}.footer-links a:first-child{margin-left:0}.footer-links a:hover{color:var(--ink)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding-top:1rem;font-size:12px;color:var(--ink-3)}.footer-note{opacity:.85}@media(max-width:720px){.featured,.featured-body{min-height:300px}.hero h1{font-size:36px}.nav-brand-text{display:none}.nav-cats{max-width:min(52vw,280px)}}