:root{--bg-primary: #f7f7f8;--bg-secondary: #efeff1;--bg-elevated: #ffffff;--text-primary: #16161c;--text-secondary: #3f3f49;--text-muted: #71717b;--accent: #6366f1;--accent-hover: #4f46e5;--accent-subtle: rgba(99, 102, 241, 0.08);--accent-glow: rgba(99, 102, 241, 0.16);--border: #e6e6ea;--border-strong: #cfcfd6;--code-bg: #f2f2f5;--code-border: #e3e3e9;--code-text: #26262b;--shadow-sm: 0 1px 2px rgba(16, 16, 20, 0.05);--shadow-md: 0 4px 14px rgba(16, 16, 20, 0.08);--shadow-lg: 0 12px 32px rgba(16, 16, 20, 0.1);--header-bg: rgba(247, 247, 248, 0.72);--progress-bg: var(--accent);--toc-active-bg: var(--accent-subtle);--toc-active-border: var(--accent);--blockquote-border: var(--accent);--blockquote-bg: rgba(99, 102, 241, 0.04);--card-hover-shadow: 0 8px 24px rgba(99, 102, 241, 0.14);--header-h: 56px;--content-max: 720px;--wide-max: 1100px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px}[data-theme="dark"]{--bg-primary: #0c0c0f;--bg-secondary: #16161b;--bg-elevated: #131318;--text-primary: #ededf2;--text-secondary: #a1a1ad;--text-muted: #6d6d78;--accent: #818cf8;--accent-hover: #a5b4fc;--accent-subtle: rgba(129, 140, 248, 0.12);--accent-glow: rgba(129, 140, 248, 0.22);--border: #26262e;--border-strong: #33333d;--code-bg: #17171d;--code-border: #2a2a33;--code-text: #d5d5dd;--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);--shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);--shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);--header-bg: rgba(12, 12, 15, 0.78);--progress-bg: var(--accent);--toc-active-bg: var(--accent-subtle);--toc-active-border: var(--accent);--blockquote-border: var(--accent);--blockquote-bg: rgba(129, 140, 248, 0.05);--card-hover-shadow: 0 8px 24px rgba(129, 140, 248, 0.18)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;font-size:15px;line-height:1.65;color:var(--text-primary);background-color:var(--bg-primary);transition:background-color 0.3s ease, color 0.3s ease;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--accent);text-decoration:none;transition:color 0.2s ease}a:hover{color:var(--accent-hover)}img{max-width:100%;height:auto;display:block}.reading-progress{position:fixed;top:0;left:0;width:0%;height:2px;background:var(--progress-bg);z-index:1000;transition:width 0.15s ease-out}#header{position:sticky;top:0;z-index:100;background:var(--header-bg);border-bottom:1px solid var(--border);transition:background-color 0.3s ease, border-color 0.3s ease}.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);padding:0 1rem;max-width:var(--wide-max);margin:0 auto}.site-title{flex-shrink:0;margin-right:auto}.site-title a{color:var(--text-primary);font-weight:700;font-size:1rem;letter-spacing:-0.02em;text-decoration:none;transition:color 0.15s ease}.site-title a:hover{color:var(--accent)}.header-right{display:flex;align-items:center;gap:0.5rem;margin-left:auto}.header-actions{display:flex;align-items:center;gap:2px}.icon-btn,.nav-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-sm);color:var(--text-secondary);background:transparent;border:1px solid transparent;font-size:0.85rem;font-weight:600;cursor:pointer;padding:0;text-decoration:none;transition:all 0.15s ease;font-family:inherit}.icon-btn:hover,.nav-btn:hover{color:var(--accent);background:var(--accent-subtle);border-color:var(--accent)}.hamburger{display:flex;flex-direction:column;justify-content:center;align-items:center;width:32px;height:32px;background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);cursor:pointer;gap:4px;padding:0;transition:all 0.15s ease}.hamburger span{display:block;width:14px;height:2px;background:var(--text-primary);border-radius:1px;transition:all 0.25s ease}.hamburger:hover{border-color:var(--accent);background:var(--accent-subtle)}.hamburger.is-active span:nth-child(1){transform:rotate(45deg) translate(4px, 4px)}.hamburger.is-active span:nth-child(2){opacity:0}.hamburger.is-active span:nth-child(3){transform:rotate(-45deg) translate(4px, -4px)}.main-nav{position:fixed;top:var(--header-h);left:0;right:0;bottom:0;background:var(--bg-primary);z-index:101;padding:0;overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease}.main-nav.is-open{opacity:1;visibility:visible;transform:none}.nav-list{list-style:none;display:flex;flex-direction:column;gap:0.25rem;padding:1rem 1.25rem 2rem}.nav-link{display:block;padding:0.75rem 1rem;color:var(--text-primary);font-size:1.05rem;font-weight:500;border-radius:var(--radius-sm);transition:all 0.15s ease}.nav-link:hover,.nav-link.is-active{background:var(--accent-subtle);color:var(--accent)}.nav-link.is-active{font-weight:600}#main{padding:1.25rem;max-width:820px;margin:0 auto;transition:all 0.3s ease}#main.reading-mode{max-width:var(--content-max);margin:0 auto;padding:1.5rem 1rem;font-size:1.15rem;line-height:1.85}#main.reading-mode article{font-size:inherit;line-height:inherit}article{width:100%}article h1,article h2,article h3,article h4,article h5,article h6{line-height:1.3;color:var(--text-primary);margin-top:1.8em;margin-bottom:0.6em}article h1:first-child,article h2:first-child,article h3:first-child,article h4:first-child,article h5:first-child,article h6:first-child{margin-top:0}article h1{font-size:1.6rem}article h2{font-size:1.3rem;padding-bottom:0.4rem;border-bottom:1px solid var(--border)}article h3{font-size:1.15rem}article p{margin-bottom:1rem;text-align:justify;hyphens:auto}article blockquote{border-left:3px solid var(--blockquote-border);padding:0.75rem 1rem;margin:1.2rem 0;background:var(--accent-subtle);border-radius:0 var(--radius-sm) var(--radius-sm) 0;font-style:italic;color:var(--text-secondary);text-align:left}article code{background:var(--code-bg);border:1px solid var(--code-border);padding:0.15em 0.4em;border-radius:4px;font-family:"SF Mono", "Fira Code", "Cascadia Code", monospace;font-size:0.88em;color:var(--code-text)}article .highlight{position:relative;margin:1.6rem 0 1.2rem}article .highlight pre{margin:0}article pre{background:var(--code-bg);border:1px solid var(--code-border);padding:1.25rem 1.25rem 1rem;border-radius:var(--radius-md);overflow-x:auto;margin:1.6rem 0 1.2rem;box-shadow:var(--shadow-sm)}article pre[data-lang]{padding-top:2rem}article pre::before{content:attr(data-lang);position:absolute;top:0.5rem;right:0.75rem;padding:0.15rem 0.6rem;font-size:0.72rem;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;color:var(--text-muted);background:var(--bg-elevated);border:1px solid var(--code-border);border-radius:4px}article pre:not([data-lang])::before{content:none}article pre code{background:none;border:none;padding:0;color:var(--code-text);font-size:0.85rem;line-height:1.6}article table{width:100%;border-collapse:collapse;margin:1.2rem 0;font-size:0.9rem}article table th,article table td{padding:0.6rem 0.8rem;border:1px solid var(--border);text-align:left}article table th{background:var(--bg-secondary);font-weight:600}article table tr:hover td{background:var(--accent-subtle)}article hr{border:none;height:1px;background:var(--border);margin:2rem 0}article ul,article ol{padding-left:1.5rem;margin-bottom:1rem}article ul li,article ol li{margin-bottom:0.3rem}.mobile-article-title{text-align:center;padding:0.5rem 0 1rem}.mobile-article-title h1{font-size:1.4rem;margin:0;color:var(--text-primary);word-break:break-word;line-height:1.35}.mobile-article-title .article-date{display:block;margin-top:0.35rem;font-size:0.78rem;font-weight:normal;color:var(--text-muted);font-variant-numeric:tabular-nums}.content{line-height:1.65}.content>*:first-child{margin-top:0}.recent-posts-container{margin:1rem 0}.recent-posts-container .section-title{font-size:1.3rem;margin-bottom:1rem;color:var(--text-primary);text-align:center;font-weight:700;letter-spacing:-0.02em}.recent-posts-grid{display:grid;grid-template-columns:1fr;gap:0.75rem}.recent-post-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:1.25rem;transition:all 0.25s ease}.recent-post-card:hover{border-color:var(--accent);box-shadow:var(--card-hover-shadow);transform:translateY(-2px)}.recent-post-card .post-content{padding:0}.recent-post-card .post-title{margin:0}.recent-post-card .post-title a{color:var(--text-primary);text-decoration:none;font-size:1.05rem;font-weight:600;transition:color 0.2s ease;line-height:1.4}.recent-post-card .post-title a:hover{color:var(--accent)}.recent-post-card .post-meta{margin-top:0.5rem;font-size:0.8rem;color:var(--text-muted)}.posts{list-style:none;padding:0;display:flex;flex-direction:column;gap:0.5rem}.posts li{display:flex;flex-direction:column;gap:0.15rem;padding:0.85rem 1rem;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg-elevated);transition:all 0.2s ease}.posts li:hover{border-color:var(--accent);box-shadow:var(--shadow-sm)}.posts .date{font-size:0.78rem;color:var(--text-muted);font-variant-numeric:tabular-nums}.posts a{font-weight:500;color:var(--text-primary)}.posts a:hover{color:var(--accent)}.pagination{display:flex;justify-content:space-between;margin-top:2rem;padding:1rem 0;border-top:1px solid var(--border)}.pagination .inner-pagination{display:flex;justify-content:space-between;width:100%;gap:0.75rem}.pagination a{color:var(--accent);text-decoration:none;padding:0.6rem 1rem;border:1px solid var(--border);border-radius:var(--radius-sm);transition:all 0.2s ease;display:flex;align-items:center;gap:0.4rem;font-size:0.85rem;font-weight:500}.pagination a:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.pagination .disabled{color:var(--text-muted);cursor:not-allowed;opacity:0.4;pointer-events:none}.pagination .prev{text-align:left;margin-right:auto}.pagination .next{text-align:right;margin-left:auto}.pagination .title{display:none}.pagination .arrow{font-weight:bold}.program-nav{display:flex;flex-wrap:wrap;gap:0.5rem;margin:1rem 0 1.5rem}.program-pill{display:inline-flex;align-items:center;padding:0.4rem 0.9rem;border-radius:999px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-secondary);font-size:0.85rem;font-weight:500;text-decoration:none;transition:all 0.2s ease}.program-pill:hover{border-color:var(--accent);color:var(--accent)}.program-pill.active{background:var(--accent);border-color:var(--accent);color:#fff}.programs-container{display:flex;flex-direction:column}.program-item{padding:1.4rem 0}.program-item+.program-item{border-top:1px solid var(--border)}.program-head{display:flex;align-items:center;gap:0.85rem;margin-bottom:0.75rem}.program-head-text{min-width:0}.program-icon{flex-shrink:0;width:48px;height:48px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--bg-elevated);box-shadow:var(--shadow-sm);object-fit:cover}.program-title{margin:0 0 0.3rem;font-size:1.25rem}.program-title a{color:var(--text-primary);text-decoration:none;transition:color 0.2s ease}.program-title a:hover{color:var(--accent)}.program-meta{display:flex;flex-wrap:wrap;align-items:center;gap:0.5rem;margin-bottom:0.5rem}.program-tag{display:inline-flex;align-items:center;padding:0.15rem 0.6rem;border-radius:999px;background:var(--accent-subtle);color:var(--accent);font-size:0.75rem;font-weight:500}.program-date{font-size:0.78rem;color:var(--text-muted);font-variant-numeric:tabular-nums}.program-desc{margin:0 0 0.75rem;color:var(--text-secondary);font-size:0.95rem;line-height:1.55}.program-more{display:inline-flex;align-items:center;gap:0.35rem;color:var(--accent);text-decoration:none;font-size:0.85rem;font-weight:500}.program-more:hover{text-decoration:underline}.program-header{display:flex;flex-direction:column;align-items:center;text-align:center;gap:0.75rem;padding:0.25rem 0 1.25rem}.program-hero-icon{width:96px;height:96px;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--bg-elevated);box-shadow:var(--shadow-md);object-fit:cover}.program-heading{margin:0;font-size:1.6rem}.program-heading-desc{margin:0;max-width:560px;color:var(--text-secondary);font-size:0.95rem;line-height:1.55}.program-heading-date{display:block;margin-top:0.5rem;color:var(--text-muted);font-size:0.8rem;font-weight:normal;font-variant-numeric:tabular-nums}.program-pagination{display:flex;align-items:center;justify-content:center;gap:0.4rem;margin-top:2rem;padding-top:1.25rem;border-top:1px solid var(--border)}.pg-link{display:inline-flex;align-items:center;justify-content:center;min-width:2.2rem;height:2.2rem;padding:0 0.5rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text-secondary);text-decoration:none;font-size:0.85rem;font-weight:500;transition:all 0.2s ease}.pg-link:hover{border-color:var(--accent);color:var(--accent)}.pg-link.active{background:var(--accent);border-color:var(--accent);color:#fff}#footer{margin-top:3rem;padding:2rem 1.25rem;border-top:1px solid var(--border);text-align:center;color:var(--text-muted);font-size:0.8rem;transition:border-color 0.3s ease}#footer .footer-inner{max-width:var(--wide-max);margin:0 auto}#table-of-contents{display:none}#table-of-contents .toc-header{display:flex;justify-content:space-between;align-items:center}#table-of-contents .toc-header h3{font-size:0.85rem;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted)}#table-of-contents .toc-header .toc-toggle-btn{background:none;border:1px solid var(--border);color:var(--text-primary);width:32px;height:32px;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease}#table-of-contents .toc-header .toc-toggle-btn:hover{border-color:var(--accent);color:var(--accent)}#table-of-contents .toc-content{max-height:60vh;overflow-y:auto;padding:0.5rem 0}#table-of-contents .toc-content ul{list-style:none;padding-left:0;margin:0}#table-of-contents .toc-content ul li{margin:0.15rem 0}#table-of-contents .toc-content ul li a{display:block;padding:0.35rem 0.75rem;color:var(--text-secondary);text-decoration:none;border-radius:var(--radius-sm);border-left:2px solid transparent;font-size:0.85rem;transition:all 0.2s ease}#table-of-contents .toc-content ul li a:hover{background:var(--accent-subtle);color:var(--accent)}#table-of-contents .toc-content ul li a.active{background:var(--toc-active-bg);border-left-color:var(--toc-active-border);color:var(--accent);font-weight:500}#table-of-contents .toc-content ul li ul{padding-left:0.75rem}#table-of-contents .toc-content ul li ul li a{font-size:0.8rem}#table-of-contents.collapsed{position:fixed;top:calc(var(--header-h) + 1rem);right:1rem;z-index:90;display:block}#table-of-contents.collapsed .toc-header{background:var(--bg-elevated);border:1px solid var(--border);border-radius:50%;width:38px;height:38px;box-shadow:var(--shadow-md);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s ease}#table-of-contents.collapsed .toc-header h3{display:none}#table-of-contents.collapsed .toc-header .toc-toggle-btn{border:none;width:auto;height:auto;font-size:1.1rem;background:none;color:var(--text-primary)}#table-of-contents.collapsed .toc-header:hover{border-color:var(--accent);box-shadow:var(--shadow-lg)}#table-of-contents.collapsed .toc-content{display:none;position:fixed;top:calc(var(--header-h) + 1rem + 48px);right:1rem;width:260px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:91;max-height:65vh;padding:0.75rem;overflow-y:auto}#table-of-contents.collapsed.expanded .toc-content{display:block}.image-zoom-modal{display:none;position:fixed;z-index:10000;left:0;top:0;width:100%;height:100%;background-color:rgba(0,0,0,0.92);backdrop-filter:blur(8px)}.image-zoom-modal.active{display:flex;justify-content:center;align-items:center}.image-zoom-modal .image-zoom-content{max-width:92%;max-height:92%;border-radius:var(--radius-sm)}.image-zoom-modal .close{position:absolute;top:1rem;right:1.5rem;color:#ddd;font-size:2rem;font-weight:bold;cursor:pointer;transition:color 0.2s ease;line-height:1}.image-zoom-modal .close:hover{color:#fff}.reading-mode p{text-align:justify}.reading-mode blockquote{margin:1.5em 0;padding:1rem 1.25rem}.reading-mode img{display:block;margin:1.5em auto}.reading-mode-serif{font-family:Georgia, 'Times New Roman', serif !important}.reading-mode-sans-serif{font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif !important}.reading-mode-large-text{font-size:1.35rem !important}.reading-mode-medium-text{font-size:1.15rem !important}.reading-mode-small-text{font-size:1rem !important}.section-header{font-size:1.4rem;font-weight:700;letter-spacing:-0.02em;margin-bottom:1rem;color:var(--text-primary)}.empty-state{text-align:center;padding:3rem 1rem;color:var(--text-muted);font-size:0.95rem}@media (min-width: 768px){body{font-size:16px}#main{padding:2rem}.mobile-article-title{display:none}#header{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.hamburger{display:none}.main-nav{position:static;background:none;padding:0;overflow:visible;opacity:1;visibility:visible;transform:none;transition:none}.main-nav.is-open{position:static;background:none;padding:0}.nav-list{flex-direction:row;align-items:center;gap:2px;padding:0}.nav-link{padding:0.4rem 0.8rem;font-size:0.88rem;border-radius:var(--radius-sm);white-space:nowrap}.recent-posts-grid{grid-template-columns:repeat(auto-fill, minmax(300px, 1fr));gap:1rem}.recent-posts-container .section-title{font-size:1.5rem}.pagination .title{display:inline}.pagination a{min-width:160px}#table-of-contents{display:block;position:fixed;top:calc(var(--header-h) + 1.5rem);right:1.5rem;width:230px;z-index:90}#table-of-contents .toc-header{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:0.6rem 0.75rem;margin-bottom:0.5rem;box-shadow:var(--shadow-sm)}#table-of-contents .toc-content{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:0.5rem;box-shadow:var(--shadow-sm);max-height:65vh;overflow-y:auto}#table-of-contents.collapsed .toc-header{background:var(--bg-elevated);border:1px solid var(--border);border-radius:50%;width:40px;height:40px;padding:0;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);cursor:pointer}#table-of-contents.collapsed .toc-header h3{display:none}#table-of-contents.collapsed .toc-header .toc-toggle-btn{border:none;background:none;width:auto;height:auto;font-size:1.1rem;color:var(--text-primary)}#table-of-contents.collapsed .toc-content{display:none;position:fixed;top:calc(var(--header-h) + 1.5rem + 50px);right:1.5rem;width:260px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:91;max-height:65vh;padding:0.75rem;overflow-y:auto}#table-of-contents.collapsed.expanded .toc-content{display:block}#footer{padding:2.5rem 2rem}}@media (min-width: 1200px){.header-inner{padding:0 2rem}#main{padding:2.5rem}#table-of-contents{width:260px}}#header,#footer,article,.recent-post-card,.posts li,.pagination a{transition:background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease}@media print{#header,#footer,#table-of-contents,.reading-progress,.hamburger,.main-nav{display:none !important}body{background:#fff;color:#000}article{max-width:100%}}