*,::after,::before{box-sizing:border-box;margin:0;padding:0}:root{--cnm-orange:#ff9d01;--cnm-orange-dark:#e08800;--cnm-orange-light:#fff8ec;--cnm-orange-mid:#fff0cc;--navbar-h:48px;--sidebar-width:268px;--content-max:760px;--topbar-h:52px;--text-primary:#1a1a1a;--text-secondary:#555;--text-muted:#888;--border:#e8e8e8;--bg-page:#f7f7f5;--bg-card:#fff;--bg-sidebar:#fafaf8;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--font-body:'DM Sans',system-ui,sans-serif;--font-mono:'DM Mono',monospace;--shadow-sm:0 1px 3px rgba(0,0,0,.06);--shadow-md:0 4px 16px rgba(0,0,0,.08)}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-body);color:var(--text-primary);background:var(--bg-page);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--cnm-orange-dark);text-decoration:none}a:hover{text-decoration:underline}.shell{display:flex;min-height:100vh;padding-top:var(--navbar-h)}.cnm-navbar{position:fixed;top:0;left:0;right:0;height:var(--navbar-h);background:#fff;border-bottom:1px solid var(--border);z-index:200;display:flex;align-items:center}.cnm-navbar-inner{width:100%;padding:0 20px;display:flex;align-items:center;gap:12px}.cnm-navbar-brand{display:flex;align-items:center;gap:7px;text-decoration:none;color:var(--text-primary);font-size:13px;font-weight:600;flex-shrink:0}.cnm-navbar-brand img{width:22px;height:22px;object-fit:contain;display:block}.cnm-navbar-brand:hover{text-decoration:none;color:var(--text-primary)}.cnm-navbar-divider{width:1px;height:16px;background:var(--border);flex-shrink:0}.cnm-navbar-section{font-size:12.5px;color:var(--text-muted);font-weight:400}.cnm-navbar-back{margin-left:auto;display:flex;align-items:center;gap:5px;font-size:12.5px;font-weight:500;color:var(--text-secondary);text-decoration:none;padding:5px 10px;border:1px solid var(--border);border-radius:var(--radius-md);transition:color .15s,border-color .15s,background .15s;flex-shrink:0}.cnm-navbar-back svg{width:13px;height:13px}.cnm-navbar-back:hover{color:var(--cnm-orange-dark);border-color:var(--cnm-orange);background:var(--cnm-orange-light);text-decoration:none}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-sidebar);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:var(--navbar-h);left:0;height:calc(100vh - var(--navbar-h));overflow:hidden;z-index:100}.sidebar-header{padding:18px 16px 14px;border-bottom:1px solid var(--border);flex-shrink:0}.sidebar-logo{display:flex;align-items:center;gap:9px;text-decoration:none}.sidebar-logo-icon img{width:22px;height:22px;object-fit:contain}.sidebar-logo-icon{width:30px;height:30px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-logo-icon svg{width:16px;height:16px;fill:#fff}.sidebar-logo-text{display:flex;flex-direction:column}.sidebar-logo-text strong{font-size:13px;font-weight:600;color:var(--text-primary);line-height:1.2}.sidebar-logo-text span{font-size:11px;color:var(--text-muted);font-weight:400}.sidebar-search{display:flex;align-items:center;gap:7px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:7px 10px;transition:border-color .15s}.sidebar-search:focus-within{border-color:var(--cnm-orange)}.sidebar-search svg{width:14px;height:14px;color:var(--text-muted);flex-shrink:0}.sidebar-search input{border:none;background:0 0;outline:0;font-size:12.5px;color:var(--text-primary);font-family:var(--font-body);width:100%}.sidebar-search input::placeholder{color:var(--text-muted)}.sidebar-nav{flex:1;overflow-y:auto;padding:8px 0 16px}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.nav-home{display:flex;align-items:center;gap:7px;padding:6px 16px;font-size:13px;color:var(--text-secondary);cursor:pointer;transition:color .15s,background .15s;text-decoration:none;border-radius:0}.nav-home:hover{background:var(--cnm-orange-light);color:var(--cnm-orange-dark);text-decoration:none}.nav-home.active{color:var(--cnm-orange-dark);font-weight:500}.nav-home svg{width:15px;height:15px;flex-shrink:0}.nav-divider{height:1px;background:var(--border);margin:6px 0}.nav-cat-btn{display:flex;align-items:center;gap:7px;padding:6px 16px;font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;width:100%;text-align:left;transition:color .15s,background .15s;font-family:var(--font-body)}.nav-cat-btn:hover{color:var(--text-primary);background:var(--cnm-orange-light)}.nav-cat-btn.open{color:var(--text-primary)}.nav-cat-btn.active{color:var(--cnm-orange-dark)}.nav-cat-icon{font-size:15px;flex-shrink:0;width:18px;text-align:center}.nav-cat-label{flex:1}.nav-cat-chevron{width:12px;height:12px;transition:transform .2s;flex-shrink:0;margin-left:auto;color:var(--text-muted)}.nav-cat-btn.open .nav-cat-chevron{transform:rotate(90deg)}.nav-articles{display:none;padding:0 0 4px}.nav-articles.open{display:block}.nav-art-link{display:block;padding:5px 16px 5px 40px;font-size:12.5px;color:var(--text-muted);cursor:pointer;text-decoration:none;transition:color .1s,background .1s;border-right:2px solid transparent}.nav-art-link:hover{color:var(--text-primary);background:var(--cnm-orange-light);text-decoration:none}.nav-art-link.active{color:var(--cnm-orange-dark);font-weight:500;background:var(--cnm-orange-light);border-right-color:var(--cnm-orange)}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--border);font-size:11.5px;color:var(--text-muted);flex-shrink:0;line-height:1.5}.sidebar-footer a{color:var(--cnm-orange-dark)}.main{margin-left:var(--sidebar-width);flex:1;min-width:0}.topbar{display:none;align-items:center;gap:10px;padding:0 20px;height:var(--topbar-h);background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}.page{padding:48px 52px 80px;max-width:calc(var(--content-max) + 104px)}.home-hero{margin-bottom:40px}.home-hero h1{font-size:26px;font-weight:600;color:var(--text-primary);margin-bottom:6px;letter-spacing:-.3px}.home-hero p{font-size:15px;color:var(--text-secondary)}.home-search{display:flex;align-items:center;gap:10px;background:var(--bg-card);border:1.5px solid var(--border);border-radius:var(--radius-lg);padding:12px 18px;margin-top:20px;box-shadow:var(--shadow-sm);transition:border-color .15s,box-shadow .15s}.home-search:focus-within{border-color:var(--cnm-orange);box-shadow:0 0 0 3px rgba(255,157,1,.12)}.home-search svg{width:18px;height:18px;color:var(--text-muted);flex-shrink:0}.home-search input{border:none;background:0 0;outline:0;font-size:15px;color:var(--text-primary);font-family:var(--font-body);width:100%}.home-search input::placeholder{color:var(--text-muted)}.section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:12px}.cats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;margin-bottom:40px}.cat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 14px;cursor:pointer;text-decoration:none;display:flex;flex-direction:column;gap:7px;transition:border-color .15s,box-shadow .15s,transform .15s;box-shadow:var(--shadow-sm)}.cat-card:hover{border-color:var(--cnm-orange);box-shadow:0 4px 16px rgba(255,157,1,.15);transform:translateY(-1px);text-decoration:none}.cat-card-icon{font-size:22px}.cat-card-label{font-size:13px;font-weight:500;color:var(--text-primary)}.cat-card-count{font-size:11px;color:var(--text-muted)}.popular-list{display:flex;flex-direction:column;gap:2px;margin-bottom:40px}.popular-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-md);cursor:pointer;text-decoration:none;transition:background .1s;font-size:13.5px;color:var(--text-primary)}.popular-item:hover{background:var(--cnm-orange-light);text-decoration:none}.popular-item svg{width:14px;height:14px;color:var(--text-muted);flex-shrink:0}.popular-badge{margin-left:auto;font-size:10px;background:var(--cnm-orange-light);color:var(--cnm-orange-dark);padding:2px 8px;border-radius:20px;font-weight:600;flex-shrink:0}.cta-box{display:flex;align-items:center;gap:16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow-sm)}.cta-box-icon{width:40px;height:40px;background:#25d366;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.cta-box-icon svg{width:20px;height:20px;fill:#fff}.cta-box-text strong{font-size:13.5px;font-weight:600;color:var(--text-primary);display:block}.cta-box-text span{font-size:12px;color:var(--text-secondary)}.cta-box-btn{margin-left:auto;padding:8px 16px;background:#25d366;color:#fff;font-size:13px;font-weight:600;border-radius:var(--radius-md);text-decoration:none;white-space:nowrap;font-family:var(--font-body);transition:background .15s;flex-shrink:0}.cta-box-btn:hover{background:#1ebe5d;text-decoration:none;color:#fff}.cat-page-header{display:flex;align-items:flex-start;gap:14px;margin-bottom:28px;padding-bottom:24px;border-bottom:1px solid var(--border)}.cat-page-icon{font-size:32px;line-height:1;flex-shrink:0;margin-top:2px}.cat-page-header h1{font-size:22px;font-weight:600;color:var(--text-primary);margin-bottom:4px}.cat-page-header p{font-size:14px;color:var(--text-secondary)}.articles-list{display:flex;flex-direction:column;gap:6px}.article-row{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);text-decoration:none;transition:border-color .15s,box-shadow .15s;box-shadow:var(--shadow-sm);cursor:pointer}.article-row:hover{border-color:var(--cnm-orange);box-shadow:0 2px 10px rgba(255,157,1,.12);text-decoration:none}.article-row svg{width:16px;height:16px;color:var(--cnm-orange);flex-shrink:0}.article-row-title{flex:1;font-size:14px;font-weight:500;color:var(--text-primary)}.article-row-meta{font-size:11.5px;color:var(--text-muted);flex-shrink:0}.article-row-chevron{width:14px;height:14px;color:var(--text-muted);flex-shrink:0}.breadcrumb{display:flex;align-items:center;gap:5px;font-size:12.5px;color:var(--text-muted);margin-bottom:22px;flex-wrap:wrap}.breadcrumb a{color:var(--text-muted);transition:color .1s}.breadcrumb a:hover{color:var(--cnm-orange-dark);text-decoration:none}.breadcrumb svg{width:12px;height:12px;flex-shrink:0}.breadcrumb span{color:var(--text-secondary)}.article-header{margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--border)}.article-header h1{font-size:22px;font-weight:600;color:var(--text-primary);line-height:1.3;margin-bottom:10px}.article-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--text-muted)}.article-meta svg{width:13px;height:13px}.article-meta span{display:flex;align-items:center;gap:4px}.article-body{font-size:15px;color:var(--text-secondary);line-height:1.75}.article-body h2{font-size:17px;font-weight:600;color:var(--text-primary);margin:30px 0 12px;padding-bottom:6px;border-bottom:1px solid var(--border)}.article-body h3{font-size:15px;font-weight:600;color:var(--text-primary);margin:22px 0 8px}.article-body p{margin-bottom:14px}.article-body ol,.article-body ul{padding-left:22px;margin-bottom:14px}.article-body li{margin-bottom:6px}.article-body strong{color:var(--text-primary);font-weight:600}.article-body code{font-family:var(--font-mono);font-size:13px;background:#f0f0ee;color:var(--text-primary);padding:1px 6px;border-radius:4px}.article-body pre{background:#1e1e1e;color:#d4d4d4;padding:16px 18px;border-radius:var(--radius-md);overflow-x:auto;margin:16px 0;font-size:13px;font-family:var(--font-mono);line-height:1.6}.article-body pre code{background:0 0;color:inherit;padding:0;font-size:inherit}.callout{border-radius:var(--radius-md);padding:13px 16px;margin:18px 0;font-size:14px;display:flex;align-items:flex-start;gap:10px;line-height:1.6}.callout svg{width:16px;height:16px;flex-shrink:0;margin-top:2px}.callout-info{background:var(--cnm-orange-light);border-left:3px solid var(--cnm-orange);color:#7a4e00}.callout-info svg{color:var(--cnm-orange-dark)}.callout-warning{background:#fff8f0;border-left:3px solid #f97316;color:#7c3a0a}.callout-warning svg{color:#f97316}.callout-success{background:#f0fdf4;border-left:3px solid #22c55e;color:#166534}.callout-success svg{color:#22c55e}.callout-danger{background:#fff5f5;border-left:3px solid #ef4444;color:#7f1d1d}.callout-danger svg{color:#ef4444}.steps{margin:18px 0}.step{display:flex;gap:13px;align-items:flex-start;margin-bottom:13px}.step-num{min-width:26px;height:26px;background:var(--cnm-orange);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;margin-top:1px}.step-body{flex:1;font-size:14.5px;color:var(--text-secondary);line-height:1.65;padding-top:3px}.step-body strong{color:var(--text-primary)}.related{margin-top:40px;padding-top:28px;border-top:1px solid var(--border)}.related h3{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:12px}.related-links{display:flex;flex-direction:column;gap:4px}.related-link{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:var(--radius-md);font-size:13.5px;color:var(--text-primary);text-decoration:none;transition:background .1s}.related-link:hover{background:var(--cnm-orange-light);text-decoration:none;color:var(--cnm-orange-dark)}.related-link svg{width:14px;height:14px;color:var(--text-muted)}.helpful{margin-top:36px;padding:18px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);display:flex;align-items:center;gap:14px;flex-wrap:wrap}.helpful p{font-size:13.5px;color:var(--text-secondary);flex:1}.helpful-btns{display:flex;gap:8px}.helpful-btn{padding:6px 16px;border:1px solid var(--border);background:0 0;border-radius:var(--radius-md);font-size:13px;cursor:pointer;font-family:var(--font-body);color:var(--text-secondary);transition:.15s}.helpful-btn:hover{border-color:var(--cnm-orange);background:var(--cnm-orange-light);color:var(--cnm-orange-dark)}.search-header{margin-bottom:24px}.search-header h1{font-size:20px;font-weight:600;color:var(--text-primary);margin-bottom:4px}.search-header p{font-size:14px;color:var(--text-secondary)}.search-result-item{display:flex;flex-direction:column;gap:4px;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:8px;cursor:pointer;text-decoration:none;transition:border-color .15s,box-shadow .15s;box-shadow:var(--shadow-sm)}.search-result-item:hover{border-color:var(--cnm-orange);box-shadow:0 2px 10px rgba(255,157,1,.12);text-decoration:none}.result-cat-badge{font-size:10.5px;font-weight:600;color:var(--cnm-orange-dark);background:var(--cnm-orange-light);padding:2px 8px;border-radius:20px;display:inline-block;width:fit-content}.result-title{font-size:14.5px;font-weight:500;color:var(--text-primary)}.result-excerpt{font-size:13px;color:var(--text-muted)}.result-excerpt mark{background:var(--cnm-orange-mid);color:var(--cnm-orange-dark);border-radius:2px;padding:0 2px}.no-results{text-align:center;padding:60px 20px;color:var(--text-muted)}.no-results svg{width:40px;height:40px;color:var(--border);margin-bottom:12px;display:block;margin-left:auto;margin-right:auto}.no-results p{font-size:14px;margin-bottom:4px}.no-results small{font-size:13px}.hamburger{display:none;width:36px;height:36px;border:1px solid var(--border);background:var(--bg-card);border-radius:var(--radius-sm);cursor:pointer;align-items:center;justify-content:center;flex-shrink:0}.hamburger svg{width:18px;height:18px;color:var(--text-primary)}.sidebar-overlay{display:none;position:fixed;top:var(--navbar-h);left:0;right:0;bottom:0;background:rgba(0,0,0,.3);z-index:99}@media (max-width:800px){.sidebar{transform:translateX(-100%);transition:transform .25s}.sidebar.open{transform:translateX(0)}.sidebar-overlay.open{display:block}.main{margin-left:0}.topbar{display:flex;position:sticky;top:var(--navbar-h)}.page{padding:24px 20px 60px}.hamburger{display:flex}.cats-grid{grid-template-columns:repeat(2,1fr)}.cta-box{flex-wrap:wrap}.cta-box-btn{margin-left:0}.article-header h1{font-size:19px}.cnm-navbar-section{display:none}}