:root{--bg: #fbfbfd;--surface: #f0f2f8;--text: #161a23;--muted: #5a6376;--line: #e2e5ee;--accent: #2d44d6;--header-bg: #2d44d6;--header-text: #ffffff;--serif: Georgia, "Times New Roman", serif;--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;color-scheme:light}:root[data-theme=dark]{--bg: #0f1522;--surface: #172033;--text: #e8ecf5;--muted: #9aa5bb;--line: #26304a;--accent: #93a5ff;--header-bg: #22339e;--header-text: #ffffff;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:1.0625rem;line-height:1.7;min-height:100vh;display:flex;flex-direction:column}a{color:inherit}:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}img,video{max-width:100%;height:auto}.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--bg);padding:.5rem 1rem;z-index:10}.skip:focus{left:0}.wrap{width:100%;max-width:44rem;margin:0 auto;padding:0 1.25rem}.site-header{position:sticky;top:0;z-index:50;padding:.8rem 0;background:var(--header-bg);color:var(--header-text);box-shadow:0 2px 14px #0a0f282e}.site-header>.wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem}.site-header :focus-visible{outline-color:#fff}.brand{font-family:var(--serif);font-weight:700;font-size:1.3rem;text-decoration:none;letter-spacing:-.01em;color:var(--header-text)}.nav{display:flex;align-items:center;gap:1.25rem;font-size:.975rem}.nav a{text-decoration:none;color:#ffffffd9}.nav a:hover{color:#fff}.theme-btn{appearance:none;border:1px solid rgba(255,255,255,.4);background:#ffffff26;color:#fff;width:2.5rem;height:2.5rem;border-radius:50%;cursor:pointer;display:grid;place-items:center}.theme-btn:hover{background:#ffffff47}.theme-btn svg{width:1.15rem;height:1.15rem}.theme-btn .moon{display:none}:root[data-theme=dark] .theme-btn .sun{display:none}:root[data-theme=dark] .theme-btn .moon{display:block}.mobile-bar{display:none;align-items:center;gap:.6rem}.front-link{text-decoration:none;color:#fff;border:1px solid rgba(255,255,255,.55);border-radius:999px;padding:.42rem 1.05rem;font-size:.95rem}.front-link:hover{background:#ffffff26}.menu-btn{appearance:none;border:1px solid rgba(255,255,255,.4);background:#ffffff26;color:#fff;width:2.5rem;height:2.5rem;border-radius:50%;cursor:pointer;display:grid;place-items:center}.menu-btn:hover{background:#ffffff47}.menu-btn svg{width:1.2rem;height:1.2rem}.menu-btn .icon-close,.menu-btn[aria-expanded=true] .icon-open{display:none}.menu-btn[aria-expanded=true] .icon-close{display:block}.mobile-drawer{display:none}.mobile-drawer.open{display:block}.mobile-drawer .wrap{display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;padding-top:.3rem;padding-bottom:.95rem}.mobile-drawer a,.drawer-theme{color:#fff;border:1px solid rgba(255,255,255,.45);border-radius:12px;padding:.65rem 1rem;margin-top:.55rem;font-size:1rem;background:#ffffff14}.mobile-drawer a{text-decoration:none}.mobile-drawer a:hover,.drawer-theme:hover{background:#fff3}.drawer-theme{appearance:none;display:flex;align-items:center;gap:.6rem;cursor:pointer;font-family:inherit;text-align:left}.drawer-theme svg{width:1.15rem;height:1.15rem;flex:none}.drawer-theme .moon{display:none}:root[data-theme=dark] .drawer-theme .sun{display:none}:root[data-theme=dark] .drawer-theme .moon{display:block}@media(max-width:768px){.nav{display:none}.mobile-bar{display:flex}.brand{font-size:1.15rem}}main{flex:1;padding-bottom:3rem}.intro{padding:1.5rem 0 1.25rem}.intro h1{font-family:var(--serif);font-size:clamp(1.9rem,6vw,2.75rem);line-height:1.15;margin:0 0 1rem;letter-spacing:-.02em;text-align:center;text-wrap:balance;border-bottom:2px solid var(--line);padding-bottom:.85rem}.intro p{margin:0;color:var(--muted);font-size:1.08rem;line-height:1.6;text-align:center;border-bottom:2px solid var(--line);padding-bottom:1.1rem}.row{padding:1.75rem 0;border-top:1px solid var(--line)}.row .cat{font-size:.9rem;font-weight:600;color:var(--accent);text-decoration:none}.row .cat:hover{text-decoration:underline}.row h2{font-family:var(--serif);font-size:1.5rem;line-height:1.25;margin:.35rem 0 .5rem;letter-spacing:-.01em}.row h2 a{color:var(--accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px}.row h2 a:after{content:" →";text-decoration:none;display:inline-block}.row h2 a:hover{text-decoration-thickness:4px}.row .desc{margin:0 0 .75rem;color:var(--muted)}.row.big h2{font-size:clamp(1.8rem,5.5vw,2.5rem);line-height:1.15}.row.big .desc{font-size:1.15rem}.meta{display:flex;gap:1rem;margin:0;font-size:.9rem;color:var(--muted)}.pager{display:flex;justify-content:space-between;gap:1rem;padding-top:1.5rem;border-top:1px solid var(--line)}.pager a{font-weight:600;color:var(--accent);text-decoration:none}.pager a:hover{text-decoration:underline}.empty{padding:2rem 0;color:var(--muted)}.article-head{padding:2rem 0 1rem}.article-head .cat{font-size:.9rem;font-weight:600;color:var(--accent);text-decoration:none}.article-head h1{font-family:var(--serif);font-size:clamp(2rem,6.5vw,3rem);line-height:1.12;margin:.5rem 0 1rem;letter-spacing:-.02em}.article-head .lead{font-size:1.2rem;color:var(--muted);margin:0 0 1rem}.prose{font-size:1.125rem;line-height:1.8}.prose>*+*{margin-top:1.25rem}.prose h2{font-family:var(--serif);font-size:1.6rem;line-height:1.25;margin-top:2.5rem;letter-spacing:-.01em}.prose h3{font-family:var(--serif);font-size:1.25rem;margin-top:2rem}.prose a{color:var(--accent);text-underline-offset:3px}.prose ul,.prose ol{padding-left:1.4rem}.prose li+li{margin-top:.4rem}.prose blockquote{margin-left:0;padding-left:1.1rem;border-left:3px solid var(--accent);color:var(--muted)}.prose img{border-radius:10px}.prose hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}.prose code{font-family:var(--mono);font-size:.9em;background:var(--surface);padding:.15em .4em;border-radius:5px}.prose pre{background:var(--surface);padding:1rem;border-radius:10px;overflow-x:auto;line-height:1.5}.prose pre code{background:none;padding:0}.prose table{display:block;overflow-x:auto;border-collapse:collapse;width:100%;font-size:1rem}.prose th,.prose td{border:1px solid var(--line);padding:.5rem .75rem;text-align:left}.back{display:inline-block;margin-top:3rem;font-weight:600;color:var(--accent);text-decoration:none}.back:hover{text-decoration:underline}.site-footer7{width:100%;margin:2rem 0 0;background:linear-gradient(135deg,#1d4ed8,#12275e);border-radius:16px 16px 0 0;padding:1.4rem 1.1rem 1.15rem;text-align:center;color:#fff;box-sizing:border-box}.sf7-brand{font-family:Georgia,Times New Roman,serif;font-size:1.375rem;font-weight:700;line-height:1.2}.sf7-tag{font-size:.75rem;color:#c9d6ff;margin-top:.25rem}.sf7-links{display:flex;gap:.45rem;justify-content:center;flex-wrap:wrap;margin-top:.75rem}.sf7-links a{background:#ffffff2e;border-radius:9px;padding:.4rem .75rem;font-size:.75rem;color:#fff;text-decoration:none}.sf7-links a:hover{background:#ffffff52;text-decoration:none}.sf7-copy{font-size:.72rem;color:#a9c0ff;margin-top:.75rem}