:root{--primary-color:#08f;--primary-hover:#06c;--text-primary:#21243d;--text-secondary:#6b7280;--text-light:#9ca3af;--bg-body:#f6f7fa;--bg-white:#fff;--header-bg:#f9fafb;--sidebar-bg:#fff;--border-color:#e5e7eb;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--code-bg:#1e1e2e;--code-text:#cdd6f4;--sidebar-width:280px;--header-height:60px;color:var(--text-primary);background:var(--bg-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;margin:0;padding:0}#root{text-align:left;font-synthesis:none;text-rendering:optimizelegibility;border:none;flex-direction:column;width:100%;max-width:none;margin:0;display:flex}.app{flex-direction:column;min-height:100vh;display:flex}.header-nav{z-index:1000;height:var(--header-height);background:var(--header-bg);border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:fixed;top:0;left:0;right:0}.header-nav-inner{justify-content:space-between;align-items:center;max-width:1440px;height:100%;margin:0 auto;padding:0 24px;display:flex}.header-left{flex-shrink:0;align-items:center;gap:16px;display:flex}.logo-link{color:var(--text-primary);align-items:center;gap:8px;text-decoration:none;transition:opacity .2s;display:flex}.logo-link:hover{opacity:.8}.react-logo{flex-shrink:0;width:32px;height:32px}.logo-text{letter-spacing:-.3px;font-size:18px;font-weight:700}.header-search{width:240px;background:#eff1f5!important;border:1px solid #0000!important;border-radius:8px!important;transition:border-color .2s,box-shadow .2s!important}.header-search:hover,.header-search:focus-within{border-color:var(--primary-color)!important;box-shadow:0 0 0 2px #0088ff1a!important}.header-search input::placeholder{color:var(--text-light)!important}.header-nav-menu{align-items:center;gap:4px;display:flex;position:absolute;left:50%;transform:translate(-50%)}.nav-link{color:var(--text-secondary);border-radius:8px;padding:8px 18px;font-size:15px;font-weight:500;text-decoration:none;transition:all .2s;position:relative}.nav-link:hover{color:var(--text-primary);background:#0088ff0f}.nav-link.active{color:var(--primary-color);font-weight:600}.nav-link.active:after{content:"";background:var(--primary-color);border-radius:2px;width:20px;height:2.5px;position:absolute;bottom:-2px;left:50%;transform:translate(-50%)}.header-right{flex-shrink:0;align-items:center;gap:8px;display:flex}.icon-btn{cursor:pointer;width:36px;height:36px;color:var(--text-secondary);background:0 0;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;font-size:16px;transition:all .2s;display:inline-flex}.icon-btn:hover{color:var(--primary-color);border-color:var(--border-color);background:#0088ff14;text-decoration:none}.main-layout{margin-top:var(--header-height);min-height:calc(100vh - 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var(--header-height) - 48px);flex-shrink:0;align-self:flex-start;position:sticky;overflow-y:auto}.toc-title{text-transform:uppercase;letter-spacing:.8px;color:var(--text-light);margin-bottom:12px;font-size:12px;font-weight:600}.toc-list{margin:0;padding:0;list-style:none}.toc-item{margin-bottom:4px}.toc-item.level-3{padding-left:14px}.toc-item a{color:var(--text-light);padding:3px 0;font-size:13px;line-height:1.5;text-decoration:none;transition:color .15s;display:block}.toc-item a:hover{color:var(--primary-color)}@media (width<=1024px){.doc-content-wrapper{gap:32px;padding:24px}.toc-nav{display:none}.header-search{width:180px}}@media (width<=768px){.header-nav-menu{display:none}.sidebar{transition:transform .25s;transform:translate(-100%)}.content-area{margin-left:0}.doc-content-wrapper{padding:20px 16px}.doc-title{font-size:28px}}