/* Shared site tokens; all reading styles stay inside this page. */
.journal-reader-v2{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
.journal-reader-v2 *{box-sizing:border-box}
.journal-reader-v2 [hidden]{display:none!important}
.jr-wrap{width:min(1280px,calc(100% - 11vw));margin:auto;padding-bottom:72px}
.jr-wrap a{color:inherit;text-decoration:none}
.jr-wrap a:hover{color:var(--accent)}
.journal-reader-v2 :focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.jr-wrap h1,.jr-wrap h2,.jr-wrap h3,.jr-wrap p{margin:0}
.jr-breadcrumb{display:flex;align-items:baseline;flex-wrap:wrap;gap:7px 10px;padding:30px 0 0;font-size:13px;line-height:1.8;color:var(--muted)}
.jr-breadcrumb a{min-height:32px;display:inline-flex;align-items:center}
.jr-breadcrumb [aria-current]{color:var(--ink);min-width:0;overflow-wrap:anywhere}
.jr-hero{max-width:1030px;padding:32px 0 38px}
.jr-eyebrow{color:var(--accent);font-size:12px;letter-spacing:.07em;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.jr-eyebrow>span{color:var(--muted);letter-spacing:0}
.jr-hero h1{font-size:clamp(32px,3.5vw,46px);font-weight:500;line-height:1.42;letter-spacing:-.025em;margin:16px 0 22px;text-wrap:pretty}
.jr-lead{font-size:17px;line-height:1.95;color:var(--muted);max-width:850px}
.jr-byline{display:flex;gap:8px 24px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:24px;font-variant-numeric:tabular-nums}
.jr-byline>span:first-child{color:var(--ink)}
.jr-layout{display:grid;grid-template-columns:240px minmax(0,780px);gap:clamp(32px,5vw,76px);align-items:start;border-top:1px solid var(--line);padding-top:28px}
.jr-sidebar{position:sticky;top:104px;max-height:calc(100dvh - 130px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;padding:0 12px 8px 0}
.jr-toc summary{list-style:none;display:flex;gap:12px;justify-content:space-between;align-items:center;cursor:pointer;min-height:44px;font-size:16px;font-weight:600;padding:8px 0}
.jr-toc summary::-webkit-details-marker{display:none}
.jr-toc summary>span{font-size:20px;font-weight:400;color:var(--muted)}
.jr-toc[open] summary>span{transform:rotate(45deg)}
.jr-toc ol{list-style:none;padding:12px 0 0;margin:0}
.jr-toc li{margin:0}
.jr-toc a{display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;align-items:baseline;font-size:15px;line-height:1.7;padding:11px 6px 11px 10px;border-left:2px solid transparent;color:var(--muted);min-height:44px;overflow-wrap:anywhere}
.jr-toc a>span:first-child{font-size:11px;letter-spacing:.02em;font-variant-numeric:tabular-nums;color:var(--soft)}
.jr-toc a[aria-current]{color:var(--accent);background:var(--wash);border-left-color:var(--accent)}
.jr-toc .jr-toc-level-3 a{padding-left:22px;font-size:14px}
.jr-toc .jr-toc-level-4 a{padding-left:32px;font-size:14px}
.jr-progress{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
.jr-progress>div{display:flex;justify-content:space-between;gap:14px;font-size:12px;color:var(--muted)}
.jr-progress progress{display:block;width:100%;height:3px;border:0;margin-top:10px;background:var(--line);accent-color:var(--accent)}
.jr-progress progress::-webkit-progress-bar{background:var(--line)}
.jr-progress progress::-webkit-progress-value{background:var(--accent)}
.jr-progress progress::-moz-progress-bar{background:var(--accent)}
.jr-back{display:inline-flex;min-height:44px;align-items:center;font-size:13px;margin-top:18px}
.jr-reading{min-width:0}
.jr-toolbar{display:flex;justify-content:space-between;gap:10px 20px;flex-wrap:wrap;align-items:center;padding:0 0 16px;border-bottom:1px solid var(--line);margin-bottom:32px}
.jr-fonts,.jr-actions{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center}
.jr-fonts>span{font-size:12px;color:var(--muted);margin-right:5px}
.jr-toolbar button{font:inherit;font-size:13px;line-height:1.5;background:transparent;color:var(--muted);cursor:pointer;min-height:44px;border:0;border-bottom:1px solid transparent;border-radius:0;padding:8px 3px;touch-action:manipulation}
.jr-toolbar button[aria-pressed="true"]{color:var(--accent);border-bottom-color:var(--accent)}
.jr-toolbar button:hover{color:var(--accent)}
.jr-feedback{font-size:13px;color:var(--accent);margin-bottom:16px!important}
.jr-feedback:empty{display:none}
.jr-link-fallback{margin-bottom:24px;font-size:13px}
.jr-link-fallback label{display:block;margin-bottom:8px;color:var(--muted)}
.jr-link-fallback input{width:100%;min-height:44px;border:1px solid var(--line);padding:10px;background:var(--paper);color:var(--ink);font:inherit}
.jr-prose{font-size:18px;line-height:1.95;overflow-wrap:break-word}
.jr-prose.jr-large{font-size:21px}
.jr-prose h2,.jr-prose h3,.jr-prose h4{scroll-margin-top:115px;overflow-wrap:break-word}
.jr-prose h2{font-size:1.44em;font-weight:600;line-height:1.6;margin:2.5em 0 1em;padding-top:1.15em;border-top:1px solid var(--line);letter-spacing:-.015em}
.jr-prose h2:first-child{margin-top:0;padding-top:0;border-top:0}
.jr-prose h3{font-size:1.17em;line-height:1.6;margin:1.8em 0 .7em;font-weight:600}
.jr-prose h4{font-size:1em;margin:1.5em 0 .6em}
.jr-prose p{margin:0 0 1.15em}
.jr-prose ul,.jr-prose ol{padding-left:1.4em;margin:1.2em 0 1.5em}
.jr-prose li{padding-left:.2em;margin:.55em 0}
.jr-prose strong{font-weight:600}
.jr-prose a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.jr-prose blockquote{border-left:2px solid var(--accent);padding:.5em 1.3em;margin:1.7em 0;background:var(--wash)}
.jr-prose blockquote p:last-child{margin-bottom:0}
.jr-prose img{max-width:100%;height:auto}
.jr-prose .logic-flow{display:flex;flex-wrap:wrap;align-items:center;gap:12px 6px;margin:32px 0 44px;padding:24px 18px;background:var(--wash);border-block:1px solid var(--line)}
.jr-prose .logic-flow-step{flex:1 1 100px;min-width:0;color:var(--accent);font-size:15px;line-height:1.6;font-weight:600;text-align:center;padding:8px 4px}
.jr-prose .logic-flow-arrow{color:var(--muted);font-size:18px}
.jr-article-end{margin-top:48px;border-top:1px solid var(--line);padding-top:28px}
.jr-end-mark{font-size:12px;letter-spacing:.15em;color:var(--muted)}
.jr-keywords{display:flex;flex-wrap:wrap;gap:6px 20px;padding:0;list-style:none;font-size:12px;line-height:1.8;margin:22px 0}
.jr-keywords li::before{content:'#';margin-right:4px;color:var(--muted)}
.jr-nature{font-size:13px;line-height:1.9;color:var(--muted)}
.jr-end-nav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:28px;border-top:1px solid var(--line);padding-top:16px}
.jr-end-nav a{min-height:44px;display:inline-flex;align-items:center;font-size:14px}
.jr-share-dialog{width:min(540px,calc(100% - 32px));max-height:90dvh;overflow-y:auto;padding:24px;border:1px solid var(--line);background:var(--paper);color:var(--ink)}
.jr-share-dialog::backdrop{background:rgb(0 0 0/.5);backdrop-filter:blur(4px)}
.jr-dialog-head{display:flex;justify-content:space-between;gap:20px;align-items:center}
.jr-dialog-head h2{font-size:20px;font-weight:500;margin:0;line-height:1.6}
.jr-dialog-head button{border:0;font-size:26px;background:transparent;color:var(--ink);min-width:44px;min-height:44px;cursor:pointer}
.jr-dialog-hint,#jr-share-status{font-size:13px;color:var(--muted);line-height:1.8;margin:8px 0 16px}
#jr-share-preview{display:block;max-width:100%;max-height:58dvh;width:auto;margin:0 auto;border:1px solid var(--line)}
#jr-share-download{display:flex;align-items:center;justify-content:center;margin-top:18px;min-height:48px;padding:10px 18px;background:var(--ink);color:var(--paper);font-size:14px;text-decoration:none}
.jr-entry{padding-block:64px;min-height:60vh;max-width:900px}
.jr-entry h1{font-size:36px;line-height:1.5;margin:18px 0}
.jr-entry>p{line-height:1.9;color:var(--muted)}
.jr-entry ul{padding-left:20px;margin:32px 0;line-height:1.9}
.jr-entry li a{display:inline-block;padding-block:10px;color:var(--accent);text-decoration:underline;text-underline-offset:4px}
html[lang="en"] .jr-prose{line-height:1.8}
html[lang="en"] .jr-hero h1{letter-spacing:-.015em;line-height:1.35}
@media(max-width:1100px){.jr-layout{grid-template-columns:210px minmax(0,1fr);gap:32px}.jr-toc a{font-size:15px}.jr-prose{font-size:17px}}
@media(max-width:900px){.jr-layout{grid-template-columns:minmax(0,1fr);gap:24px;padding-top:0}.jr-sidebar{position:static;max-height:none;overflow:visible;padding:0}.jr-toc{border-bottom:1px solid var(--line)}.jr-toc summary{min-height:52px;font-size:15px}.jr-toc nav{padding-bottom:18px}.jr-toc a{font-size:15px}.jr-progress,.jr-sidebar>.jr-back{display:none!important}.jr-reading{max-width:780px;margin:auto;width:100%}.jr-hero{padding-bottom:28px}.jr-prose{font-size:18px}}
@media(max-width:600px){.jr-wrap{width:calc(100% - 40px);padding-bottom:40px}.jr-breadcrumb{padding-top:20px;font-size:12px;gap:5px 8px}.jr-breadcrumb [aria-current]{flex-basis:100%;font-size:12px}.jr-hero{padding-top:24px}.jr-hero h1{font-size:30px;line-height:1.5;margin:14px 0 18px}.jr-lead{font-size:16px;line-height:1.9}.jr-byline{font-size:12px;gap:8px 18px;margin-top:18px}.jr-byline>span:first-child{width:100%}.jr-toolbar{margin-bottom:24px;padding-bottom:12px;gap:6px 14px}.jr-actions{gap:14px}.jr-prose{font-size:17px;line-height:1.95}.jr-prose.jr-large{font-size:20px}.jr-prose h2{font-size:1.32em;line-height:1.65}.jr-prose .logic-flow{display:grid;grid-template-columns:1fr auto 1fr;padding:18px 12px;gap:10px 4px}.jr-prose .logic-flow-arrow:nth-child(4){grid-column:1/-1;transform:rotate(90deg);justify-self:center}.jr-prose .logic-flow-step{font-size:14px}.jr-article-end{margin-top:32px}.jr-share-dialog{padding:18px}.jr-dialog-head h2{font-size:18px}}
@media(max-width:380px){.jr-wrap{width:calc(100% - 32px)}.jr-hero h1{font-size:27px}.jr-toolbar button{font-size:12px}.jr-prose{font-size:17px}}
@media(prefers-reduced-motion:reduce){.journal-reader-v2,.jr-wrap *{scroll-behavior:auto;animation:none;transition:none}}
@media print{.journal-reader-v2{background:white;color:black}.journal-reader-v2>.site-header,.journal-reader-v2>footer,.jr-sidebar,.jr-toolbar,.jr-feedback,.jr-link-fallback,.jr-breadcrumb,.jr-end-nav,#site-page-tools,.jr-share-dialog{display:none!important}.jr-wrap{width:100%;max-width:none;padding:0}.jr-hero{padding-top:0}.jr-hero h1{font-size:24pt}.jr-layout{display:block;padding:0;border:0}.jr-prose,.jr-prose.jr-large{font-size:12pt;line-height:1.7}.jr-prose h2{break-after:avoid}.jr-lead,.jr-byline,.jr-nature,.jr-eyebrow,.jr-prose .logic-flow-step{color:black}.jr-prose .logic-flow{break-inside:avoid}.jr-prose a{color:black}.jr-share-dialog{display:none!important}}