.reading-progress{z-index:50;direction:ltr;height:3px;position:fixed;top:0;left:0;right:0}.reading-progress span{background:var(--blue);width:0;height:100%;display:block}.article-hero{color:#eef4ff;background:radial-gradient(circle at 18% 18%,#7aa2ff59,#0000 28%),linear-gradient(135deg,#091933,#123e89 62%,#0a1630);border-bottom:1px solid #9cb5f4;padding:78px 0 68px}.article-hero .hero-inner{width:min(1040px,100% - 36px);max-width:1040px;margin-inline:auto}.breadcrumb{color:var(--muted);gap:9px;font-size:.76rem;display:flex}.article-hero .breadcrumb{color:#b6c8ef}.breadcrumb a:hover{color:#fff}.article-meta{color:#b6c8ef;align-items:center;gap:14px;margin-top:40px;font-size:.78rem;display:flex}.article-meta span:first-child{color:#10295f;background:#d9e6ff;border-radius:999px;padding:5px 12px;font-weight:850}.article-hero h1{letter-spacing:0;max-width:940px;margin:22px 0 18px;font-size:clamp(2.05rem,4.5vw,3.65rem);line-height:1.28}.article-hero p{color:#d2def4;max-width:780px;margin:0;font-size:clamp(1rem,2vw,1.18rem)}.tag-row{color:var(--blue-dark);flex-wrap:wrap;gap:12px;margin-top:22px;font-size:.76rem;display:flex}.tag-row a{color:#e9f0ff;background:#ffffff14;border:1px solid #ffffff38;border-radius:999px;padding:6px 10px}.tag-row a:hover{background:#ffffff29;border-color:#fff}.article-grid{grid-template-columns:minmax(0,760px) 270px;align-items:start;gap:64px;padding-top:64px;display:grid}.toc{border:1px solid var(--line);background:color-mix(in srgb,var(--surface)88%,transparent);border-radius:22px;grid-area:1/2;padding:22px;position:sticky;top:114px}.toc strong{font-size:.88rem}.toc ol{margin:14px 0 0;padding:0;list-style:none}.toc li+li{margin-top:9px}.toc a{color:var(--muted);font-size:.73rem;line-height:1.65;display:block}.toc a:hover,.toc a.active{color:var(--blue)}.toc a.active{border-right:3px solid var(--blue);padding-right:10px;font-weight:850}.copy-link{border:1px solid var(--line);width:100%;color:var(--blue);background:var(--surface);cursor:pointer;border-radius:12px;margin-top:18px;padding:9px;font-size:.74rem;font-weight:800}.article-body{color:#263247;grid-area:1/1;min-width:0;font-size:1.02rem;line-height:2.12}:root[data-theme=dark] .article-body{color:#dbe5f7}.article-body>:first-child{margin-top:0}.article-body h2{color:var(--ink);letter-spacing:0;margin:66px 0 20px;scroll-margin-top:110px;font-size:clamp(1.45rem,2.6vw,2rem);line-height:1.55}.article-body h3{color:var(--ink);margin:42px 0 16px;font-size:1.3rem}.article-body p{margin:0 0 23px}.article-body a{color:var(--blue-dark);text-underline-offset:4px;text-decoration:underline #9db8ff}.article-body ul,.article-body ol{margin:20px 0 28px;padding-right:24px}.article-body li{margin:8px 0;padding-right:5px}.article-body li::marker{color:var(--blue);font-weight:900}.article-body blockquote{border:0;border-right:5px solid var(--coral);color:#73352e;background:#fff0ed;border-radius:18px 4px 4px 18px;margin:34px 0;padding:22px 26px}.article-body blockquote p{margin:0}:root[data-theme=dark] .article-body blockquote{color:#f2c9c2;background:#2a1d1f;border-right-color:#e8847a}.article-body code{color:#0f4bba;direction:ltr;unicode-bidi:isolate;background:#eaf0ff;border-radius:7px;padding:2px 7px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.86em}:root[data-theme=dark] .article-body code{color:#9cc0ff;background:#16233c}.article-body pre{direction:ltr;border:1px solid #25425e;border-radius:20px;margin:32px 0;padding:24px;overflow-x:auto;box-shadow:0 16px 40px #102a4324;background:#102a43!important}.article-body pre code{color:inherit;background:0 0;padding:0;font-size:.82rem}.article-body table{border-collapse:collapse;border:1px solid var(--line);background:#fff;border-radius:16px;width:100%;margin:34px 0;display:block;overflow-x:auto}:root[data-theme=dark] .article-body table{background:var(--surface)}.article-body th,.article-body td{border-bottom:1px solid var(--line);text-align:right;vertical-align:top;min-width:150px;padding:14px 16px}.article-body th{color:var(--ink);background:var(--blue-soft);font-size:.84rem}.article-body td{font-size:.84rem}.article-body img{border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;margin:40px auto}.mermaid-diagram{border:1px solid var(--line);direction:ltr;background:#fff;border-radius:24px;margin:38px 0;padding:26px;overflow-x:auto;box-shadow:0 14px 42px #19305e14}:root[data-theme=dark] .mermaid-diagram{background:var(--surface)}.mermaid-diagram svg{min-width:680px;max-width:100%;height:auto;margin:auto}.post-nav{grid-template-columns:1fr 1fr;gap:20px;margin-top:78px;display:grid}.post-nav a{border:1px solid var(--line);background:#fff;border-radius:22px;padding:24px;transition:border-color .2s,background-color .2s}:root[data-theme=dark] .post-nav a{background:var(--surface)}.post-nav a:hover{background:var(--blue-soft);border-color:#9db8ff}.post-nav small{color:var(--muted);margin-bottom:8px;display:block}.post-nav strong{font-size:.92rem;line-height:1.6}.article-cta{color:#fff;box-shadow:var(--shadow);background:linear-gradient(125deg,#11131a,#2563eb);border-radius:18px;justify-content:space-between;align-items:center;gap:30px;margin-top:70px;padding:clamp(30px,5vw,58px);display:flex}.article-cta h2{max-width:680px;margin:10px 0;font-size:clamp(1.5rem,3vw,2.35rem);line-height:1.45}.article-cta p{color:#cbd9ff;margin:0}.article-cta a{color:var(--blue);background:#fff;border-radius:12px;flex:none;padding:13px 19px;font-weight:900}@media (width<=900px){.article-grid{grid-template-columns:1fr}.toc{grid-area:1/1;position:static}.article-body{grid-row:2}}@media (width<=650px){.article-hero{padding:45px 0}.article-meta{flex-wrap:wrap;margin-top:28px}.article-grid{gap:35px;padding-top:35px}.post-nav{grid-template-columns:1fr}.article-cta{flex-direction:column;align-items:flex-start}.article-body{font-size:.96rem}}