@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";
:root{--color-bg:#f7f7f5;--color-surface:#fff;--color-border:#0000000f;--color-border-strong:#0000001f;--color-text-primary:#1f1f1f;--color-text-secondary:#6b6b6b;--color-text-tertiary:#484343;--color-accent:#2563eb;--color-accent-light:#2563eb14;--color-accent-hover:#1d4ed8;--color-hover:#0000000a;--color-active:#0000000f;--color-danger:#dc2626;--color-warning:#f59e0b;--color-success:#10b981;--color-info:#3b82f6;--callout-note-bg:#3b82f60f;--callout-note-border:#3b82f64d;--callout-tip-bg:#10b9810f;--callout-tip-border:#10b9814d;--callout-warning-bg:#f59e0b0f;--callout-warning-border:#f59e0b4d;--callout-danger-bg:#dc26260f;--callout-danger-border:#dc26264d;--font-sans:"Inter",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:"JetBrains Mono","Fira Code","SF Mono",Consolas,monospace;--font-size-base:16px;--font-size-sm:14px;--font-size-xs:12px;--font-size-h1:36px;--font-size-h2:27px;--font-size-h3:21px;--line-height-base:1.75;--line-height-heading:1.3;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--header-height:60px;--sidebar-width:260px;--content-max-width:100%;--container-max-width:100%;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 2px 8px #0000000f;--shadow-lg:0 8px 24px #00000014;--transition-fast:.12s ease;--transition-normal:.2s ease;--transition-slow:.3s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--font-size-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);font-size:var(--font-size-base);line-height:var(--line-height-base);color:var(--color-text-primary);background-color:var(--color-bg)}a{color:var(--color-accent);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-accent-hover)}img{max-width:100%;height:auto}.app-shell{flex-direction:column;min-height:100vh;display:flex}.main-layout{flex:1;width:100%;display:flex}.header{z-index:100;height:var(--header-height);background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:0 var(--space-5);align-items:center;display:flex;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;width:100%;display:flex}.header-left{align-items:center;gap:var(--space-4);display:flex}.header-logo{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);letter-spacing:-.01em;align-items:center;gap:var(--space-2);display:flex}.header-logo svg{width:24px;height:24px}.header-right{align-items:center;gap:var(--space-3);display:flex}.header-divider{background:var(--color-border-strong);width:1px;height:20px;margin:0 var(--space-1)}.mobile-menu-btn{padding:var(--space-2);cursor:pointer;color:var(--color-text-secondary);border-radius:var(--radius-sm);transition:background var(--transition-fast);background:0 0;border:none;display:none}.mobile-menu-btn:hover{background:var(--color-hover)}.version-selector{position:relative}.version-selector select{appearance:none;background:var(--color-bg);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);padding:var(--space-1)var(--space-5)var(--space-1)var(--space-3);font-size:var(--font-size-xs);font-family:var(--font-sans);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;transition:border-color var(--transition-fast)}.version-selector select:hover{border-color:var(--color-accent)}.version-selector:after{content:"▾";color:var(--color-text-tertiary);pointer-events:none;font-size:10px;position:absolute;top:50%;right:8px;transform:translateY(-50%)}.search-trigger{align-items:center;gap:var(--space-2);background:var(--color-bg);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);padding:var(--space-2)var(--space-3);font-size:var(--font-size-sm);color:var(--color-text-tertiary);cursor:pointer;min-width:200px;transition:all var(--transition-fast);display:flex}.search-trigger:hover{border-color:var(--color-accent);color:var(--color-text-secondary)}.search-trigger kbd{font-family:var(--font-sans);font-size:var(--font-size-xs);background:var(--color-surface);border:1px solid var(--color-border-strong);color:var(--color-text-tertiary);border-radius:4px;margin-left:auto;padding:1px 5px}.search-overlay{z-index:200;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn var(--transition-normal);background:#0006;justify-content:center;align-items:flex-start;padding-top:120px;display:flex;position:fixed;inset:0}.search-dialog{background:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);width:560px;max-width:90vw;max-height:480px;animation:slideUp var(--transition-normal);flex-direction:column;display:flex;overflow:hidden}.search-input-wrapper{padding:var(--space-4);border-bottom:1px solid var(--color-border);align-items:center;gap:var(--space-3);display:flex}.search-input-wrapper svg{width:20px;height:20px;color:var(--color-text-tertiary);flex-shrink:0}.search-input{font-size:var(--font-size-base);font-family:var(--font-sans);color:var(--color-text-primary);background:0 0;border:none;outline:none;flex:1}.search-input::placeholder{color:var(--color-text-tertiary)}.search-results{padding:var(--space-2);flex:1;overflow-y:auto}.search-result-item{padding:var(--space-3)var(--space-4);border-radius:var(--radius-sm);cursor:pointer;transition:background var(--transition-fast);color:inherit;text-decoration:none;display:block}.search-result-item:hover,.search-result-item.active{background:var(--color-hover)}.search-result-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.search-result-path{font-size:var(--font-size-xs);color:var(--color-text-tertiary);margin-top:2px}.search-empty{padding:var(--space-7);text-align:center;color:var(--color-text-tertiary);font-size:var(--font-size-sm)}.sidebar{width:var(--sidebar-width);border-right:1px solid var(--color-border);background:var(--color-surface);padding:var(--space-4)0;top:var(--header-height);max-height:calc(100vh - var(--header-height));flex-direction:column;flex-shrink:0;align-self:flex-start;display:flex;position:sticky;overflow-y:auto}.sidebar-nav{flex:0 auto;min-height:0;overflow-y:auto}.sidebar-resources{border-top:1px solid var(--color-border);padding:var(--space-3)var(--space-4);flex-shrink:0}.sidebar-pdf-table{border-collapse:collapse;width:100%;font-size:var(--font-size-xs);margin-top:var(--space-2)}.sidebar-pdf-table th{text-align:left;font-weight:var(--font-weight-semibold);color:var(--color-text-tertiary);padding:var(--space-1)var(--space-2);border-bottom:1px solid var(--color-border);text-transform:uppercase;letter-spacing:.04em;font-size:10px}.sidebar-pdf-table td{padding:var(--space-1)var(--space-2);color:var(--color-text-secondary);white-space:nowrap}.sidebar-pdf-link{color:var(--color-accent);font-weight:var(--font-weight-medium);transition:color var(--transition-fast);text-decoration:none}.sidebar-pdf-link:hover{color:var(--color-text-primary);text-decoration:underline}.sidebar-pdf-version,.sidebar-pdf-date{color:var(--color-text-tertiary)}.sidebar::-webkit-scrollbar{width:4px}.sidebar::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:2px}.sidebar-section{margin-bottom:var(--space-4)}.sidebar-index-pages{padding-bottom:var(--space-3);margin-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.sidebar-index-link{font-weight:var(--font-weight-medium)}.sidebar-section-title{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-tertiary);padding:var(--space-2)var(--space-5);margin-bottom:var(--space-1)}.sidebar-chapter{margin-bottom:var(--space-1)}.sidebar-chapter-title{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);padding:var(--space-1)var(--space-5);align-items:center;gap:var(--space-2);cursor:pointer;transition:color var(--transition-fast);display:flex}.sidebar-chapter-title:hover{color:var(--color-text-primary)}.sidebar-chapter-title svg{width:14px;height:14px;transition:transform var(--transition-fast)}.sidebar-chapter-title.expanded svg{transform:rotate(90deg)}.sidebar-link{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-secondary);padding:var(--space-1)var(--space-5)var(--space-1)var(--space-7);transition:all var(--transition-fast);border-radius:0;text-decoration:none;display:flex;position:relative}.sidebar-icon{flex-shrink:0;justify-content:center;align-items:center;width:16px;height:16px;display:inline-flex}.sidebar-icon svg{width:16px;height:16px}.sidebar-link:hover{background:var(--color-hover);color:var(--color-text-primary)}.sidebar-link.active{color:var(--color-text-primary);font-weight:var(--font-weight-medium);background:var(--color-hover)}.sidebar-link.active:before{content:"";background:var(--color-text-primary);border-radius:1px;width:2px;position:absolute;top:4px;bottom:4px;left:0}.content-area{min-width:0;padding:var(--space-7)var(--space-7);flex:1}.content-wrapper{width:100%}.doc-page-layout{gap:var(--space-7);align-items:flex-start;display:flex}.doc-page-layout>article{flex:1;min-width:0}.toc{top:calc(var(--header-height) + var(--space-7));width:220px;max-height:calc(100vh - var(--header-height) - var(--space-7)*2);padding-left:var(--space-4);border-left:1px solid var(--color-border);flex-shrink:0;position:sticky;overflow-y:auto}.toc-title{font-size:11px;font-weight:var(--font-weight-semibold);text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-tertiary);padding-bottom:var(--space-3)}.toc-list{margin:0;padding:0;list-style:none}.toc-item{margin:0}.toc-item-h3{padding-left:var(--space-4)}.toc-link{font-size:var(--font-size-xs);color:var(--color-text-secondary);padding:var(--space-1)var(--space-3);transition:color var(--transition-fast);border-left:2px solid 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