:root{--bg: #f5f7fa;--surface: #fff;--ink: #1d1d1f;--muted: #6e6e73;--line: #e5e8ee;--blue: #0071e3;--blue-soft: #e8f1fc;--nav-h: 52px;--wrap: 1000px;--sans: -apple-system, BlinkMacSystemFont, "Inter", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Segoe UI", sans-serif;--mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace}*,*:before,*:after{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 8px)}html,body{margin:0;min-height:100%}body{position:relative;font-family:var(--sans);color:var(--ink);background:var(--bg);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}.atmosphere{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none}.field{display:block;width:100%;height:100%}.wrap,.site-footer,.skip{position:relative;z-index:1}img{max-width:100%;height:auto;display:block}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline;text-underline-offset:.15em}:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.skip{position:absolute;left:12px;top:-40px;z-index:40;background:var(--surface);padding:6px 10px;border-radius:8px}.skip:focus{top:8px}.nav{position:sticky;top:0;z-index:30;height:var(--nav-h);background:#f5f7fac7;backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}.nav-inner{max-width:var(--wrap);height:100%;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:20px}.logo{display:flex;align-items:center;gap:8px;color:var(--ink);font-weight:600;font-size:14px;letter-spacing:-.02em;text-decoration:none}.logo:hover{text-decoration:none;color:var(--blue)}.logo-mark{width:14px;height:14px;border-radius:4px;background:var(--blue);position:relative;flex:none}.logo-mark:after{content:"";position:absolute;left:50%;top:3px;bottom:3px;width:1.5px;transform:translate(-50%);background:#fff;border-radius:1px}.nav-links{display:flex;align-items:center;gap:18px;margin-left:auto}.nav-links a{color:var(--muted);font-size:13px;text-decoration:none}.nav-links a:hover{color:var(--ink);text-decoration:none}.nav-links a[aria-current=page]{color:var(--blue);text-decoration:none}.menu-btn{display:none;margin-left:auto;width:36px;height:36px;border:0;background:transparent;color:var(--ink);cursor:pointer}.menu-btn span,.menu-btn span:before,.menu-btn span:after{display:block;width:15px;height:1.5px;background:currentColor;position:relative;border-radius:1px}.menu-btn span:before,.menu-btn span:after{content:"";position:absolute;left:0}.menu-btn span:before{top:-5px}.menu-btn span:after{top:5px}.wrap{max-width:var(--wrap);margin:0 auto;padding:28px 20px 64px}.page-head{margin-bottom:20px}.page-head h1{margin:0;font-size:22px;font-weight:600;letter-spacing:-.03em;line-height:1.3}.page-head p{margin:8px 0 0;color:var(--muted);font-size:14px}.cover{margin:0 0 20px;overflow:hidden;border:1px solid var(--line);border-radius:14px;background:#ffffffb8;box-shadow:0 10px 30px #0f376e0d}.cover img{width:100%;aspect-ratio:16 / 9;object-fit:cover}.cover-short img{aspect-ratio:2.2 / 1}.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0 28px}.channel-count{margin:6px 0 0;color:var(--muted);font-size:12px}.home-db{margin:0 0 22px;font-size:14px;color:var(--muted)}.home-db a{margin-right:8px;font-weight:600}.channel{display:block;background:#ffffffc7;backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:14px;overflow:hidden;color:inherit;text-decoration:none;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}.channel:hover{text-decoration:none;border-color:#c9d7ea;transform:translateY(-3px);box-shadow:0 12px 28px #0f376e14}.channel img{width:100%;aspect-ratio:4 / 3;object-fit:cover;transition:transform .35s ease}.channel:hover img{transform:scale(1.04)}.channel h2{margin:0;padding:12px 14px;font-size:15px;font-weight:600}.featured{display:grid;grid-template-columns:220px minmax(0,1fr);gap:18px;align-items:center;margin-bottom:16px;padding:12px;background:#ffffffc7;backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:14px;color:inherit;text-decoration:none;transition:border-color .22s ease,box-shadow .22s ease}.featured:hover{text-decoration:none;border-color:#c9d7ea;box-shadow:0 12px 28px #0f376e14}.featured img{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:10px}.featured-meta{margin:0 0 6px;font-size:12px;color:var(--muted)}.featured h3{margin:0;font-size:18px;font-weight:600;letter-spacing:-.02em}.featured:hover h3{color:var(--blue)}.about-split{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}.about-split img{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:14px;border:1px solid var(--line)}.block-title{margin:0 0 10px;font-size:13px;font-weight:600;color:var(--muted)}.list{list-style:none;margin:0;padding:0;background:#ffffffc7;backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:14px;overflow:hidden}.list li+li{border-top:1px solid var(--line)}.list a{display:grid;grid-template-columns:92px 48px minmax(0,1fr);gap:12px;align-items:baseline;padding:10px 14px;color:inherit;text-decoration:none}.list-plain a{grid-template-columns:88px minmax(0,1fr)}.list-compact{display:grid;grid-template-columns:1fr 1fr}.list-compact li+li{border-top:0}.list-compact li{border-bottom:1px solid var(--line)}.list-compact a{grid-template-columns:minmax(0,1fr);padding:8px 12px;font-size:14px}.list a:hover{background:#f8fafc;text-decoration:none}.list a:hover .list-title{color:var(--blue)}.list-date,.list-ch{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.list-title{font-size:15px;font-weight:500}.article-layout.has-toc{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:24px;align-items:start}.toc{position:sticky;top:calc(var(--nav-h) + 16px);background:#ffffffe6;border:1px solid var(--line);border-radius:12px;padding:12px 14px 14px}.toc ol{list-style:none;margin:0;padding:0}.toc li+li{margin-top:6px}.toc a{display:block;color:var(--muted);font-size:12px;line-height:1.4;text-decoration:none}.toc a:hover{color:var(--blue)}.article{min-width:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 32px 40px;box-shadow:0 10px 30px #0f376e0d}.article-meta{margin:0 0 8px;font-size:13px;color:var(--muted)}.article h1{margin:0 0 18px;font-size:22px;font-weight:600;letter-spacing:-.025em;line-height:1.35;color:var(--ink)}.article .cover{margin:0 0 24px}.prose{color:var(--ink)}.prose>h1:first-child{display:none}.prose p,.prose li{font-size:15px;line-height:1.75}.prose p{margin:0 0 1em}.prose p:last-child{margin-bottom:0}.prose h2,.prose h3,.prose h4{margin:1.6em 0 .5em;font-weight:600;color:var(--ink)}.prose h2{font-size:17px}.prose h3{font-size:16px}.prose h4{font-size:15px}.prose blockquote{margin:0 0 1em;padding:8px 14px;border-left:3px solid var(--blue);background:#f7fafc;color:var(--ink)}.prose hr{border:0;border-top:1px solid var(--line);margin:1.6em 0}.prose mark{background:transparent;color:inherit}.prose ol,.prose ul{margin:0 0 1em;padding-left:1.2em}.prose li+li{margin-top:.35em}.prose code{font-family:var(--mono);font-size:.88em;background:var(--blue-soft);padding:.1em .32em;border-radius:4px}.prose strong{font-weight:600}.site-footer{max-width:var(--wrap);margin:0 auto;padding:0 20px 40px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.site-footer a{color:var(--muted)}.site-footer a:hover{color:var(--blue)}.empty{color:var(--muted)}.doc-group{margin-bottom:28px;scroll-margin-top:calc(var(--nav-h) + 12px)}.jump{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}.jump a{padding:4px 10px;border:1px solid var(--line);border-radius:999px;background:#ffffffdb;color:var(--ink);font-size:12px;text-decoration:none}.jump a:hover{border-color:#c9d7ea;color:var(--blue)}.filter{display:block;margin-bottom:8px}.filter input{width:100%;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:#ffffffdb;color:var(--ink);font:inherit}.filter input:focus{outline:2px solid var(--blue);outline-offset:1px}.channel-text{padding:16px 18px}.channel-text h2{padding:0}.prose pre{overflow:auto;padding:12px 14px;border-radius:10px;background:#0f2744;color:#e8f1fc;font-size:13px;line-height:1.5}.prose pre code{background:transparent;color:inherit;padding:0}.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 1em;display:block;overflow-x:auto}.prose th,.prose td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left}@media(max-width:720px){.channels,.featured,.about-split{grid-template-columns:1fr}.list a{grid-template-columns:72px minmax(0,1fr);gap:8px}.list-ch{display:none}.menu-btn{display:grid;place-items:center}.nav-links{display:none;position:absolute;inset:var(--nav-h) 0 auto;background:#fff;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:6px 0 10px;border-bottom:1px solid var(--line)}.nav.is-open .nav-links{display:flex}.nav-links a{padding:10px 20px;font-size:15px;color:var(--ink)}.article{padding:20px 16px 28px}.article-layout.has-toc{grid-template-columns:1fr}.toc{display:none}.list-compact{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.field{display:none}.channel,.channel img,.featured{transition:none}.channel:hover,.channel:hover img{transform:none}}