/* docs/pages/assets/style.css */
:root {
  --nav-bg: #111827; --nav-text: #f9fafb; --nav-accent: #2d9ef5;
  --banner-from: #1e3a5f; --banner-to: #111827; --banner-text: #fff; --banner-link: #93c5fd;
  --page-bg: #f6f8fa; --sidebar-bg: #fff; --content-bg: #fff;
  --border: #e1e4e8; --text: #24292e; --text-muted: #586069;
  --accent: #2d9ef5; --accent-hover: #1a8ae0;
  --code-bg: #f6f8fa; --table-stripe: #fafbfc; --active-bg: #eff8ff;
  --font: system-ui,"Segoe UI","PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif;
  --font-mono: "SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --nav-h: 56px; --sidebar-w: 260px; --content-pad-h: 3rem;
}
@media(min-width:1440px){:root{--sidebar-w:280px}}
@media(min-width:1920px){:root{--sidebar-w:300px;--content-pad-h:4rem}}
@media(min-width:2560px){:root{--sidebar-w:320px;--content-pad-h:5rem}}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);font-size:15px;line-height:1.7;color:var(--text);background:var(--page-bg);min-height:100vh}
.top-nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:var(--nav-bg);display:flex;align-items:center;justify-content:space-between;padding:0 1.5rem;box-shadow:0 1px 4px rgba(0,0,0,.4)}
.nav-brand{font-size:1rem;font-weight:700;color:var(--nav-text);text-decoration:none;letter-spacing:-.01em;transition:color 120ms}
.nav-brand:hover{color:var(--nav-accent)}
.nav-controls{display:flex;align-items:center;gap:.75rem}
.nav-gh-link{display:inline-flex;align-items:center;gap:.375rem;color:#d1d5db;text-decoration:none;font-size:.875rem;padding:.375rem .75rem;border:1px solid #374151;border-radius:6px;transition:all 120ms;white-space:nowrap}
.nav-gh-link:hover{background:#1f2937;color:var(--nav-accent);border-color:var(--nav-accent)}
.search-wrap{position:relative}
.search-input{padding:.375rem .75rem;border:1px solid #374151;border-radius:6px;background:#1f2937;color:var(--nav-text);font-family:var(--font);font-size:.875rem;width:200px;transition:border-color 120ms}
.search-input::placeholder{color:#9ca3af}
.search-input:focus{outline:none;border-color:var(--nav-accent)}
.search-results{position:absolute;top:calc(100% + 4px);right:0;background:var(--content-bg);border:1px solid var(--border);border-radius:8px;width:320px;max-height:400px;overflow-y:auto;box-shadow:0 8px 24px rgba(0,0,0,.15);z-index:200;display:none}
.search-result-item{padding:.625rem 1rem;border-bottom:1px solid var(--border);cursor:pointer;text-decoration:none;display:block;color:var(--text)}
.search-result-item:hover{background:var(--page-bg)}
.search-result-item__title{font-weight:600;font-size:.875rem}
.search-result-item__excerpt{color:var(--text-muted);font-size:.8125rem;margin-top:2px}
.doc-page-banner{background:linear-gradient(135deg,var(--banner-from) 0%,var(--banner-to) 100%);color:var(--banner-text);padding:2.5rem 2rem 2rem;border-bottom:1px solid #0d1117}
.banner-breadcrumb{font-size:.8125rem;color:var(--banner-link);margin-bottom:.5rem}
.banner-breadcrumb a{color:var(--banner-link);text-decoration:none}
.banner-breadcrumb a:hover{text-decoration:underline}
.banner-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;letter-spacing:-.02em;margin:0}
.page-wrapper{display:grid;grid-template-columns:var(--sidebar-w) 4px 1fr;width:100%;min-height:calc(100vh - var(--nav-h) - 7rem);align-items:start;transition:grid-template-columns 200ms ease}
.sidebar{background:var(--sidebar-bg);border-right:1px solid var(--border);padding:1.5rem 0;position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));overflow-y:auto}
.sidebar__section{margin-bottom:1.5rem}
.sidebar__label{font-size:.6875rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;padding:0 1rem;margin-bottom:.375rem}
.sidebar__link{display:flex;align-items:center;gap:.5rem;padding:.4375rem 1rem;color:var(--text);text-decoration:none;font-size:.875rem;border-left:2px solid transparent;transition:all 120ms}
.sidebar__link:hover{background:var(--page-bg);color:var(--accent)}
.sidebar__link.active{border-left-color:var(--accent);color:var(--accent);background:var(--active-bg);font-weight:500}
.doc-content{padding:2.5rem var(--content-pad-h);width:100%;background:transparent}
.doc-content h1{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;letter-spacing:-.02em;margin-bottom:1.25rem;color:var(--text);border-bottom:2px solid var(--border);padding-bottom:.625rem}
.doc-content h2{font-size:clamp(1.125rem,2vw,1.5rem);font-weight:600;letter-spacing:-.01em;margin:2.5rem 0 .75rem;color:var(--text);padding-bottom:.375rem;border-bottom:1px solid var(--border)}
.doc-content h3{font-size:1.125rem;font-weight:600;margin:1.75rem 0 .5rem}
.doc-content h4{font-size:1rem;font-weight:600;margin:1.25rem 0 .375rem}
.doc-content p{margin-bottom:1rem}
.doc-content ul,.doc-content ol{margin:.5rem 0 1rem 1.5rem}
.doc-content li{margin-bottom:.25rem}
.doc-content a{color:var(--accent);text-decoration:none}
.doc-content a:hover{text-decoration:underline}
.doc-content blockquote{border-left:3px solid var(--accent);padding:.625rem 1rem;margin:1rem 0;background:#f0f7ff;border-radius:0 6px 6px 0;color:var(--text-muted)}
.doc-content hr{border:none;border-top:1px solid var(--border);margin:2rem 0}
.doc-content table{display:block;overflow-x:auto;width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:.875rem}
.doc-content th{background:var(--page-bg);padding:.5rem .75rem;text-align:left;font-weight:600;border:1px solid var(--border)}
.doc-content td{padding:.5rem .75rem;border:1px solid var(--border);vertical-align:top}
.doc-content tr:nth-child(even) td{background:var(--table-stripe)}
.doc-content pre{background:var(--code-bg);border:1px solid var(--border);border-radius:6px;padding:1rem 1.25rem;overflow-x:auto;margin:1rem 0;font-family:var(--font-mono);font-size:.875rem;line-height:1.6}
.doc-content code{font-family:var(--font-mono);font-size:.875em;background:var(--code-bg);padding:1px 5px;border-radius:4px;border:1px solid var(--border)}
.doc-content pre code{background:none;padding:0;border:none;font-size:1em}
.diagram-container{background:var(--content-bg);border:1px solid var(--border);border-radius:8px;padding:1.5rem;margin:1.5rem 0;text-align:center;cursor:pointer;overflow-x:auto;transition:border-color 200ms,box-shadow 200ms}
.diagram-container:hover{border-color:var(--accent);box-shadow:0 2px 8px rgba(45,158,245,.15)}
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.8);z-index:1000;align-items:center;justify-content:center;padding:2rem}
.lightbox.active{display:flex}
.lightbox__content{background:var(--content-bg);border-radius:8px;padding:2rem;max-width:95vw;max-height:90vh;overflow:auto}
.lightbox__close{position:absolute;top:1rem;right:1rem;font-size:2rem;color:white;cursor:pointer;line-height:1}
.index-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;margin-top:1.5rem}
.index-card{background:var(--content-bg);border:1px solid var(--border);border-radius:8px;padding:1.5rem;text-decoration:none;color:var(--text);transition:all 120ms;display:flex;flex-direction:column;gap:.5rem;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.index-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 12px rgba(45,158,245,.15)}
.index-card__icon{font-size:1.75rem}
.index-card__title{font-weight:600;font-size:1rem}
.index-card__desc{color:var(--text-muted);font-size:.875rem}
.badge-fallback{display:inline-block;padding:2px 8px;font-size:.75rem;font-family:var(--font-mono);background:#e1e4e8;border-radius:4px;color:var(--text-muted);vertical-align:middle}
.sidebar-toggle{background:transparent;border:1px solid #374151;color:#d1d5db;padding:.375rem .5rem;border-radius:6px;cursor:pointer;font-size:1rem;line-height:1;transition:all 120ms;flex-shrink:0}
.sidebar-toggle:hover{background:#1f2937;color:var(--nav-accent)}
.sidebar-resizer{width:4px;background:var(--border);cursor:col-resize;transition:background 120ms;z-index:5;user-select:none;flex-shrink:0}
.sidebar-resizer:hover,.sidebar-resizer.dragging{background:var(--accent)}
.page-wrapper.sidebar-collapsed{grid-template-columns:0 4px 1fr}
.page-wrapper.sidebar-collapsed .sidebar{overflow:hidden;min-width:0;width:0;padding:0;border:none;visibility:hidden}
@media(max-width:768px){.page-wrapper{grid-template-columns:1fr}.sidebar{display:none}.doc-content{padding:1.5rem 1rem}.search-input{width:140px}.doc-page-banner{padding:1.5rem 1rem 1rem}.nav-gh-link{display:none}}