:root{color-scheme:light;--bg:#eef1f7;--nav-gradient:linear-gradient(to bottom, #eef1f7eb, #eef1f700);--panel-bg:#ffffffd1;--panel-solid:#fff;--border:#4c6abe4d;--border-soft:#4c6abe29;--text-title:#1b2138;--text-body:#292f46eb;--text-muted:#292f4699;--text-faint:#292f466b;--accent:#3f6fe0;--link:#3558c0;--accent-soft:#3f6fe01f;--accent-strong:#3f6fe033;--code-bg:#f4f6fb;--inline-code-color:#3351b8;--inline-code-bg:#3f6fe01a;--mark-color:#9a5b00;--mark-bg:#ffc44266;--shadow:0 18px 48px #465a962e;--card-shadow:0 1px 2px #232d500d, 0 14px 36px #465a961f;--scrollbar:#4c6abe59;--code-fg:#24292e;--hl-comment:#6a737d;--hl-keyword:#d73a49;--hl-string:#032f62;--hl-number:#005cc5;--hl-title:#6f42c1;--hl-tag:#22863a;--hl-meta:#735c0f}[data-theme=dark]{color-scheme:dark;--bg:#0b0e1a;--nav-gradient:linear-gradient(to bottom, #0b0e1ad1, 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.toc-panel-chevron{transform:rotate(-45deg)}.reader-toc.is-collapsed{width:40px}.reader-toc.is-collapsed .toc-panel-title{display:none}.reader-toc.is-collapsed .toc-panel-toggle{justify-content:center;padding:50px 0 10px}.toc-panel-body{grid-template-rows:1fr;transition:grid-template-rows .28s;display:grid}.reader-toc.is-collapsed .toc-panel-body{grid-template-rows:0fr}.toc-panel-inner{min-height:0;padding:4px 8px 14px;overflow:hidden}.toc-group-head{align-items:center;display:flex}.toc-group-head .toc-link{flex:1;min-width:0;font-weight:600}.toc-group-head .toc-link:not(.is-active){color:var(--text-body)}.toc-group-head .toc-link:not(.is-active):hover{color:var(--text-title)}.toc-group+.toc-group{margin-top:8px}.toc-caret{cursor:pointer;width:24px;color:var(--text-muted);background:0 0;border:none;flex-shrink:0;justify-content:center;align-self:stretch;align-items:center;padding:0;transition:color 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var(--border);background:var(--accent-soft);border-radius:0 10px 10px 0;margin:0 0 16px;padding:10px 18px}.reader-content blockquote p{margin-bottom:0}.reader-content .md-alert{border:1px solid color-mix(in srgb, var(--alert-accent) 38%, transparent);border-left:4px solid var(--alert-accent);background:color-mix(in srgb, var(--alert-accent) 10%, transparent);color:var(--text-body);border-radius:10px;margin:0 0 16px;padding:12px 16px 12px 14px}.reader-content .md-alert p{margin-bottom:6px}.reader-content .md-alert p:last-child{margin-bottom:0}.reader-content .md-alert-title{color:var(--alert-accent);align-items:center;gap:7px;font-size:15px;font-weight:700;display:flex}.reader-content .md-alert-title svg{flex:none}.reader-content .md-alert-note{--alert-accent:#2f6fe0}.reader-content .md-alert-tip{--alert-accent:#1a9e4b}.reader-content .md-alert-important{--alert-accent:#8b5cf6}.reader-content .md-alert-warning{--alert-accent:#d97706}.reader-content .md-alert-caution{--alert-accent:#dc2626}[data-theme=dark] .reader-content .md-alert-note{--alert-accent:#60a5fa}[data-theme=dark] .reader-content .md-alert-tip{--alert-accent:#34d399}[data-theme=dark] .reader-content .md-alert-important{--alert-accent:#a78bfa}[data-theme=dark] .reader-content .md-alert-warning{--alert-accent:#fbbf24}[data-theme=dark] .reader-content .md-alert-caution{--alert-accent:#f87171}.reader-content table{width:100%;color:var(--text-body);border-collapse:collapse;margin:0 0 20px;font-size:14px}.reader-content th,.reader-content td{text-align:left;border:1px solid var(--border-soft);padding:10px 14px}.reader-content th{color:var(--text-title);background:var(--accent-soft)}.reader-content img{border-radius:12px;max-width:100%}.reader-content .katex{color:inherit;font-size:1.1em}.reader-content .katex-display{padding:8px 0;overflow:auto hidden}.loading-screen{z-index:100;background:var(--bg);flex-direction:column;justify-content:center;align-items:center;gap:20px;transition:opacity .6s,visibility .6s;display:flex;position:fixed;inset:0}.loading-screen.is-hidden{opacity:0;visibility:hidden}.loading-spinner{border:3px solid var(--border-soft);border-top-color:var(--accent);border-radius:50%;width:44px;height:44px;animation:1s linear infinite loading-spin}@keyframes loading-spin{to{transform:rotate(360deg)}}.loading-text{letter-spacing:3px;color:var(--text-muted);font-size:14px}@media (width<=900px){.nav-bar{flex-wrap:wrap;padding:12px 16px}.logo-mark{height:20px}.logo-suffix{font-size:17px}.nav-link{padding:6px 12px;font-size:13px}.theme-toggle{width:32px;height:32px;font-size:13px}.list-view{padding:108px 16px 40px}.list-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}.list-theme-name{font-size:16px}.welcome-content{padding:88px 16px 48px}.nav-search{flex-basis:100%;order:3;margin:10px 0 0}#search-input,#search-input:focus,.search-results{width:100%}.reader-shell{padding:36px 20px 24px}.reader-content{border-radius:12px;padding:30px 20px 40px}.reader-header{flex-direction:column;align-items:flex-start;gap:14px}.reader-title{font-size:24px}.toc-toggle{display:inline-block}.reader-toc{z-index:50;background:var(--panel-solid);border-right:1px solid var(--border);width:min(280px,82vw);height:100%;max-height:none;padding:0 18px 24px;transition:transform .4s cubic-bezier(.22,1,.36,1);position:fixed;inset:0 auto 0 0;transform:translate(-102%)}.reader.is-toc-open .reader-toc{transform:translate(0)}.toc-panel-toggle{background:var(--panel-solid);padding-top:50px}.reader-toc.is-collapsed{width:min(280px,82vw)}.reader-toc.is-collapsed .toc-panel-title{display:inline}.reader-toc.is-collapsed .toc-panel-toggle{border:none;border-radius:0;justify-content:space-between;margin-top:0;padding:50px 12px 6px}.reader-toc.is-collapsed .toc-panel-chevron{transform:rotate(-135deg)}}