@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,300;0,14..32,400;0,14..32,500;0,14..32,600;0,14..32,700;0,14..32,800;1,14..32,400&family=JetBrains+Mono:wght@400;500;600;700&display=swap');:root{--bg-primary:#F7F8FA;--bg-surface:#FFFFFF;--bg-elevated:#EEF1F5;--bg-input:#F0F2F5;--text-primary:#10151C;--text-secondary:#5A6473;--text-muted:#8A97A8;--text-inverse:#FFFFFF;--accent-primary:#E8431F;--accent-primary-rgb:232,67,31;--accent-hover:#D13818;--accent-secondary:#1F6FE8;--accent-secondary-rgb:31,111,232;--accent-gradient:linear-gradient(135deg,#FF5A36 0%,#E8431F 60%,#C93012 100%);--accent-gradient-h:linear-gradient(90deg,#FF5A36 0%,#E8431F 100%);--accent-glow:0 4px 24px rgba(232,67,31,0.28);--accent-glow-lg:0 8px 40px rgba(232,67,31,0.35);--success:#15803D;--success-bg:#DCFCE7;--warning:#D97706;--warning-bg:#FEF3C7;--error:#DC2626;--error-bg:#FEE2E2;--info:#0284C7;--info-bg:#E0F2FE;--border:#D7DCE3;--border-subtle:#E8ECF0;--border-focus:rgba(232,67,31,0.5);--shadow-xs:0 1px 2px rgba(0,0,0,0.05);--shadow-sm:0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 16px rgba(0,0,0,0.09),0 2px 4px rgba(0,0,0,0.05);--shadow-lg:0 8px 32px rgba(0,0,0,0.11),0 4px 8px rgba(0,0,0,0.05);--shadow-xl:0 20px 60px rgba(0,0,0,0.13);--shadow-2xl:0 25px 80px rgba(0,0,0,0.16);--r-xs:4px;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-2xl:32px;--r-full:9999px;--sp-1:0.25rem;--sp-2:0.5rem;--sp-3:0.75rem;--sp-4:1rem;--sp-5:1.25rem;--sp-6:1.5rem;--sp-8:2rem;--sp-10:2.5rem;--sp-12:3rem;--sp-16:4rem;--sp-20:5rem;--sp-24:6rem;--font-sans:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-mono:'JetBrains Mono','Fira Code','Cascadia Code',monospace;--ease:200ms ease-out;--ease-slow:350ms ease-out;--ease-spring:320ms cubic-bezier(0.34,1.56,0.64,1);--focus-ring:0 0 0 3px rgba(232,67,31,0.30);--focus-ring-blue:0 0 0 3px rgba(31,111,232,0.30);--container-max:1200px;--container-pad:clamp(1rem,4vw,2rem);--header-h:64px;--sidebar-w:280px;}[data-theme="dark"]{--bg-primary:#0B0E14;--bg-surface:#141922;--bg-elevated:#1C2330;--bg-input:#1A2132;--text-primary:#E8EEF5;--text-secondary:#94A1B2;--text-muted:#6B7A8D;--accent-primary:#FF5A36;--accent-primary-rgb:255,90,54;--accent-hover:#FF6E4D;--accent-secondary:#4F9DFF;--accent-secondary-rgb:79,157,255;--accent-glow:0 4px 24px rgba(255,90,54,0.30);--accent-glow-lg:0 8px 40px rgba(255,90,54,0.40);--success:#34D058;--success-bg:rgba(52,208,88,0.12);--warning:#FBBF24;--warning-bg:rgba(251,191,36,0.12);--error:#F87171;--error-bg:rgba(248,113,113,0.12);--info:#38BDF8;--info-bg:rgba(56,189,248,0.12);--border:#2A3340;--border-subtle:#1E2A38;--border-focus:rgba(255,90,54,0.5);--shadow-xs:0 1px 2px rgba(0,0,0,0.3);--shadow-sm:0 1px 3px rgba(0,0,0,0.4);--shadow-md:0 4px 16px rgba(0,0,0,0.4);--shadow-lg:0 8px 32px rgba(0,0,0,0.5);--shadow-xl:0 20px 60px rgba(0,0,0,0.6);--shadow-2xl:0 25px 80px rgba(0,0,0,0.7);}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%;scrollbar-gutter:stable;}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.65;min-height:100vh;transition:background-color var(--ease),color var(--ease);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}img,svg,video,canvas,audio,iframe,embed,object{display:block;max-width:100%;}input,button,textarea,select{font-family:inherit;font-size:inherit;}a{color:var(--accent-secondary);text-decoration:none;transition:color var(--ease);}a:hover{color:var(--accent-primary);}ul,ol{list-style:none;}p + p{margin-top:var(--sp-4);}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--text-primary);letter-spacing:-0.02em;}h1{font-size:clamp(1.875rem,4vw,2.75rem);font-weight:800;}h2{font-size:clamp(1.375rem,3vw,1.875rem);margin-bottom:var(--sp-4);}h3{font-size:clamp(1.125rem,2vw,1.375rem);}h4{font-size:1.125rem;}h5{font-size:1rem;}h6{font-size:0.875rem;}p{color:var(--text-secondary);line-height:1.75;}strong{font-weight:600;color:var(--text-primary);}em{font-style:italic;}code{font-family:var(--font-mono);font-size:0.875em;background:var(--bg-elevated);padding:0.1em 0.4em;border-radius:var(--r-xs);color:var(--accent-primary);}pre{font-family:var(--font-mono);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-md);padding:var(--sp-6);overflow-x:auto;font-size:0.9rem;line-height:1.6;}blockquote{border-left:3px solid var(--accent-primary);padding-left:var(--sp-6);color:var(--text-secondary);font-style:italic;margin:var(--sp-6) 0;}hr{border:none;border-top:1px solid var(--border);margin:var(--sp-8) 0;}.container{max-width:var(--container-max);margin-inline:auto;padding-inline:var(--container-pad);}.container-sm{max-width:780px;margin-inline:auto;padding-inline:var(--container-pad);}.container-lg{max-width:1400px;margin-inline:auto;padding-inline:var(--container-pad);}.section{padding-block:var(--sp-16);}.section-sm{padding-block:var(--sp-10);}.section-lg{padding-block:var(--sp-24);}.grid{display:grid;}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-6);}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-6);}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-6);}.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--sp-6);}.grid-auto-sm{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--sp-4);}@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr);}}@media (max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}.flex{display:flex;}.flex-col{flex-direction:column;}.flex-wrap{flex-wrap:wrap;}.items-center{align-items:center;}.items-start{align-items:flex-start;}.items-end{align-items:flex-end;}.justify-center{justify-content:center;}.justify-between{justify-content:space-between;}.justify-end{justify-content:flex-end;}.flex-1{flex:1;}.shrink-0{flex-shrink:0;}.gap-1{gap:var(--sp-1);}.gap-2{gap:var(--sp-2);}.gap-3{gap:var(--sp-3);}.gap-4{gap:var(--sp-4);}.gap-6{gap:var(--sp-6);}.gap-8{gap:var(--sp-8);}.gap-12{gap:var(--sp-12);}.mt-2{margin-top:var(--sp-2);}.mt-4{margin-top:var(--sp-4);}.mt-6{margin-top:var(--sp-6);}.mt-8{margin-top:var(--sp-8);}.mt-10{margin-top:var(--sp-10);}.mt-12{margin-top:var(--sp-12);}.mt-16{margin-top:var(--sp-16);}.mb-2{margin-bottom:var(--sp-2);}.mb-4{margin-bottom:var(--sp-4);}.mb-6{margin-bottom:var(--sp-6);}.mb-8{margin-bottom:var(--sp-8);}.mb-12{margin-bottom:var(--sp-12);}.text-center{text-align:center;}.text-right{text-align:right;}.text-xs{font-size:0.75rem;}.text-sm{font-size:0.875rem;}.text-base{font-size:1rem;}.text-lg{font-size:1.125rem;}.text-xl{font-size:1.25rem;}.text-2xl{font-size:1.5rem;}.text-3xl{font-size:1.875rem;}.text-4xl{font-size:2.25rem;}.text-5xl{font-size:3rem;}.text-6xl{font-size:3.75rem;}.font-normal{font-weight:400;}.font-medium{font-weight:500;}.font-semibold{font-weight:600;}.font-bold{font-weight:700;}.font-extrabold{font-weight:800;}.font-mono{font-family:var(--font-mono);}.tracking-tight{letter-spacing:-0.025em;}.tracking-wide{letter-spacing:0.025em;}.leading-tight{line-height:1.25;}.leading-snug{line-height:1.375;}.leading-normal{line-height:1.5;}.leading-relaxed{line-height:1.75;}.uppercase{text-transform:uppercase;}.text-primary-c{color:var(--text-primary);}.text-secondary-c{color:var(--text-secondary);}.text-muted-c{color:var(--text-muted);}.text-accent-c{color:var(--accent-primary);}.text-gradient{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--r-sm);}.skip-link{position:absolute;top:-100%;left:var(--sp-4);background:var(--accent-primary);color:var(--text-inverse);padding:var(--sp-2) var(--sp-4);border-radius:0 0 var(--r-sm) var(--r-sm);font-weight:600;z-index:9999;transition:top var(--ease);}.skip-link:focus{top:0;color:var(--text-inverse);}@keyframes fadeInUp{from{opacity:0;transform:translateY(16px);}to{opacity:1;transform:translateY(0);}}@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}@keyframes scaleIn{from{opacity:0;transform:scale(0.92);}to{opacity:1;transform:scale(1);}}@keyframes countUp{from{opacity:0;transform:scale(0.88) translateY(4px);}to{opacity:1;transform:scale(1) translateY(0);}}@keyframes slideInLeft{from{opacity:0;transform:translateX(-12px);}to{opacity:1;transform:translateX(0);}}@keyframes pulseGlow{0%,100%{box-shadow:var(--accent-glow);}50%{box-shadow:var(--accent-glow-lg);}}@keyframes shimmer{0%{background-position:-200% center;}100%{background-position:200% center;}}@keyframes spin{to{transform:rotate(360deg);}}.animate-fade-up{animation:fadeInUp 0.4s ease-out both;}.animate-fade{animation:fadeIn 0.3s ease-out both;}.animate-scale-in{animation:scaleIn 0.3s ease-out both;}.animate-count{animation:countUp 0.28s cubic-bezier(0.34,1.56,0.64,1) both;}.animate-slide-in{animation:slideInLeft 0.3s ease-out both;}.delay-100{animation-delay:100ms;}.delay-200{animation-delay:200ms;}.delay-300{animation-delay:300ms;}.delay-400{animation-delay:400ms;}.hidden{display:none !important;}.invisible{visibility:hidden;}@media (max-width:768px){.hide-mobile{display:none !important;}}@media (min-width:769px){.hide-desktop{display:none !important;}}.rounded-sm{border-radius:var(--r-sm);}.rounded-md{border-radius:var(--r-md);}.rounded-lg{border-radius:var(--r-lg);}.rounded-xl{border-radius:var(--r-xl);}.rounded-full{border-radius:var(--r-full);}.overflow-hidden{overflow:hidden;}.relative{position:relative;}.sticky{position:sticky;}.top-0{top:0;}.z-10{z-index:10;}.z-50{z-index:50;}.w-full{width:100%;}.h-full{height:100%;}.min-h-screen{min-height:100vh;}.divider{height:1px;background:var(--border);margin-block:var(--sp-8);}.badge{display:inline-flex;align-items:center;gap:var(--sp-1);padding:0.2em 0.7em;border-radius:var(--r-full);font-size:0.72rem;font-weight:600;letter-spacing:0.04em;text-transform:uppercase;}.badge-core{background:rgba(var(--accent-primary-rgb),0.12);color:var(--accent-primary);}.badge-new{background:rgba(var(--accent-secondary-rgb),0.12);color:var(--accent-secondary);}.badge-longtail{background:var(--bg-elevated);color:var(--text-secondary);}::-webkit-scrollbar{width:6px;height:6px;}::-webkit-scrollbar-track{background:var(--bg-elevated);}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--r-full);}::-webkit-scrollbar-thumb:hover{background:var(--text-muted);}::selection{background:rgba(var(--accent-primary-rgb),0.2);color:var(--text-primary);}