:root{--bg:#fff;--sidebar:#fafafa;--text:#333;--muted:#737373;--border:#e2e2e2;--link:#4183c4;--code:#f3f3f3;--sidebar-width:300px;--menu-height:50px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px}body{margin:0;background:var(--bg);color:var(--text);font-family:"Open Sans","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:var(--link)}button,input{font:inherit}.menu-bar{position:fixed;z-index:40;top:0;right:0;left:var(--sidebar-width);height:var(--menu-height);display:flex;align-items:center;gap:10px;padding:0 18px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);backdrop-filter:blur(8px);transition:left .2s}.icon-button{width:34px;height:34px;padding:0;border:0;border-radius:4px;background:transparent;color:#555;cursor:pointer;font-size:19px}.icon-button:hover{background:#f2f2f2}.book-title{overflow:hidden;color:#555;font-size:14px;font-weight:600;text-decoration:none;text-overflow:ellipsis;white-space:nowrap}.menu-actions{margin-left:auto;display:flex;align-items:center;gap:16px}.menu-actions>a{color:#555;font-size:13px;text-decoration:none}.sidebar{position:fixed;z-index:50;inset:0 auto 0 0;width:var(--sidebar-width);background:var(--sidebar);border-right:1px solid var(--border);transition:transform .2s}.sidebar-scroll{height:100%;overflow-y:auto;padding:24px 20px 40px}.sidebar-title{display:block;margin:0 8px 20px;color:#333;font-size:18px;font-weight:700;text-align:center;text-decoration:none}.page-wrapper{margin-left:var(--sidebar-width);padding-top:var(--menu-height);transition:margin-left .2s}.content{width:min(100% - 64px,860px);min-height:100vh;margin:0 auto;padding:46px 0 100px}.content h1,.content h2,.content h3,.content h4,.content h5,.content h6{position:relative;color:#2f2f2f;font-weight:600;line-height:1.3}.content h1{margin:0 0 22px;font-size:2.35rem;letter-spacing:-.025em}.content h2{margin:2.4em 0 .75em;padding-bottom:.3em;border-bottom:1px solid var(--border);font-size:1.75rem}.content h3{margin:2em 0 .65em;font-size:1.35rem}.content h4{margin:1.55em 0 .55em;font-size:1.08rem}.content h5{margin:0 0 .25em;font-size:1rem}.content p{margin:.8em 0}.lead{color:#555;font-size:1.05rem;line-height:1.85}.loading{color:#888}.header-anchor{position:absolute;right:100%;margin-right:8px;color:transparent;font-weight:400;text-decoration:none}h1:hover .header-anchor,h2:hover .header-anchor,h3:hover .header-anchor{color:#aaa}code{padding:.12em .34em;background:var(--code);border-radius:3px;color:#555;font-family:Consolas,monospace;font-size:.86em}.info-box,.warning-box{margin:1.6em 0;padding:12px 18px;border:1px solid #d9e4ee;border-left:4px solid #6aa0cf;border-radius:3px;background:#f5f9fc;color:#4c5d6b}.warning-box{border-color:#eadfbe;border-left-color:#d6a94c;background:#fffaf0;color:#655a3d}.info-box p,.warning-box p{margin:.35em 0}.stat-line{display:flex;flex-wrap:wrap;gap:8px;margin:1.25em 0}.stat-line span{padding:4px 9px;border:1px solid #ddd;border-radius:3px;background:#fafafa;color:#666;font-size:12px}table{width:100%;margin:1.15em 0 1.7em;border-collapse:collapse;font-size:14px}th,td{padding:9px 12px;border:1px solid #ddd;text-align:left;vertical-align:top}th{background:#f6f6f6;font-weight:600}tbody tr:nth-child(even){background:#fbfbfb}.chapter ol{margin:0;padding:0;list-style:none}.chapter li{margin:0}.chapter-toggle{position:relative;width:100%;padding:3px 8px 3px 22px;display:block;border:0;border-radius:4px;background:transparent;color:#555;cursor:pointer;font-size:13px;line-height:1.55;text-align:left}.chapter-toggle:before{position:absolute;top:5px;left:8px;content:"›";color:#999;font-size:14px;line-height:1;transition:transform .15s}.chapter-group.open>.chapter-toggle:before{transform:rotate(90deg)}.chapter-toggle:hover{background:#ededed;color:#222}.chapter-root>.chapter-toggle{color:var(--link);font-weight:600}.chapter a{display:block;padding:3px 8px;border-radius:4px;color:#555;font-size:12px;line-height:1.55;text-decoration:none}.chapter a:hover{background:#ededed;color:#222}.chapter li ol{margin-left:14px;padding-left:8px;border-left:1px solid #e5e5e5}.chapter .company-tree{margin-left:13px;border-left-style:dashed}.chapter .company-tree a{padding-left:14px;color:#888;font-size:11px}.chapter .company-tree a:before{content:"↳ ";color:#aaa}.sidebar-collapsed .sidebar{transform:translateX(-100%)}.sidebar-collapsed .menu-bar{left:0}.sidebar-collapsed .page-wrapper{margin-left:0}.sidebar-overlay{display:none}.top-search{position:relative;width:260px}.searchbox{height:32px;display:flex;align-items:center;gap:7px;padding:0 8px;background:#fafafa;border:1px solid #d8d8d8;border-radius:4px;color:#888}.searchbox:focus-within{background:#fff;border-color:#9dbbd7;box-shadow:0 0 0 2px rgba(65,131,196,.1)}.searchbox input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:#444;font-size:12px}.searchbox kbd{padding:0 5px;background:#eee;border:1px solid #ddd;border-radius:3px;color:#888;font:10px/16px monospace}.search-results{position:absolute;z-index:70;top:calc(100% + 7px);right:0;width:380px;max-height:420px;overflow:auto;background:#fff;border:1px solid #d8d8d8;border-radius:4px;box-shadow:0 10px 28px rgba(0,0,0,.13)}.search-results button{width:100%;padding:9px 12px;display:flex;align-items:center;justify-content:space-between;gap:16px;border:0;border-bottom:1px solid #ededed;background:#fff;color:#444;cursor:pointer;text-align:left}.search-results button:hover,.search-results button:focus{background:#f3f6f8;outline:0}.search-results button span{font-size:13px;font-weight:600}.search-results button small{color:#888;font-size:10px;white-space:nowrap}.search-results p{margin:0;padding:13px;color:#888;font-size:12px}.industry-index{margin-top:1.5em;border-top:1px solid var(--border)}.industry-row{padding:15px 4px;display:grid;grid-template-columns:minmax(150px,1fr) 1.5fr auto;gap:18px;align-items:center;border-bottom:1px solid var(--border)}.industry-row h2{margin:0;padding:0;border:0;font-size:1.1rem}.industry-row p{margin:0;color:#777;font-size:12px}.industry-row>a{text-decoration:none}.industry-section{scroll-margin-top:72px}.third-entry{margin:0;padding:14px 0 16px 16px;border-left:2px solid #ececec;scroll-margin-top:72px}.third-entry+.third-entry{border-top:1px dashed #e5e5e5}.company-list-heading{margin:1.1em 0 .45em;color:#444;font-size:13px;font-weight:700}.company-entry{margin:.45em 0;border:1px solid #dedede;border-radius:3px;background:#fff;scroll-margin-top:72px}.company-entry>summary{padding:8px 11px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#f7f7f7;color:#444;cursor:pointer;list-style-position:inside}.company-entry>summary:hover{background:#f2f2f2}.company-entry>summary small{color:#888;font-size:11px}.company-body{padding:12px 16px 16px}.company-body h6{margin:1.25em 0 .35em;font-size:.95rem}.company-name{color:#777;font-size:13px}.company-meta{display:flex;flex-wrap:wrap;gap:6px}.company-meta span{padding:3px 7px;background:#f2f2f2;color:#666;font-size:11px}.data-stamp{color:#777;font-size:12px}.empty{padding:12px;background:#f7f7f7;color:#888;font-size:12px}.page-nav{margin-top:4em;padding-top:1.2em;display:flex;justify-content:space-between;border-top:1px solid var(--border)}
@media(max-width:900px){:root{--sidebar-width:280px}.sidebar{transform:translateX(-100%)}.sidebar-visible .sidebar{transform:translateX(0);box-shadow:10px 0 30px rgba(0,0,0,.12)}.menu-bar{left:0}.page-wrapper{margin-left:0}.sidebar-visible .sidebar-overlay{position:fixed;z-index:45;inset:0;display:block;border:0;background:rgba(0,0,0,.2)}}
@media(max-width:640px){body{font-size:15px}.book-title{display:none}.menu-actions{width:calc(100% - 44px);gap:8px}.top-search{width:100%}.menu-actions>a{display:none}.search-results{width:min(380px,calc(100vw - 56px))}.content{width:calc(100% - 36px);padding-top:30px}.content h1{font-size:2rem}.content h2{font-size:1.45rem}.header-anchor{display:none}.industry-row{grid-template-columns:1fr}.industry-row>span{display:none}table{display:block;overflow-x:auto;white-space:nowrap}}