:root{--vt-c-white: #ffffff;--vt-c-white-soft: #f8f8f8;--vt-c-white-mute: #f2f2f2;--vt-c-black: #000000;--vt-c-black-soft: #111111;--vt-c-black-mute: #1a1a1a;--vt-c-indigo: #2c3e50;--vt-c-divider-light-1: rgba(60, 60, 60, .29);--vt-c-divider-light-2: rgba(60, 60, 60, .12);--vt-c-divider-dark-1: rgba(84, 84, 84, .65);--vt-c-divider-dark-2: rgba(84, 84, 84, .48);--vt-c-text-light-1: var(--vt-c-indigo);--vt-c-text-light-2: rgba(60, 60, 60, .66);--vt-c-text-dark-1: var(--vt-c-white);--vt-c-text-dark-2: rgba(235, 235, 235, .64);--color-primary: #2080f0;--color-primary-light: #4098fc;--color-primary-dark: #1864c7;--color-success: #18a058;--color-success-light: #36ad6a;--color-success-dark: #0c7a43;--color-warning: #f0a020;--color-warning-light: #fcb040;--color-warning-dark: #c7780c;--color-danger: #d03050;--color-danger-light: #de4661;--color-danger-dark: #ab1f3f;--color-info: #2090f0;--color-info-light: #40a9ff;--color-info-dark: #1873cc;--color-gray-100: #f5f7fa;--color-gray-200: #e4e7ed;--color-gray-300: #d9dde3;--color-gray-400: #c9cdcf;--color-gray-500: #a0a0a0;--color-gray-600: #666666;--color-gray-700: #4a5568;--color-gray-800: #333333;--color-gray-900: #1a1a1a;--color-text-primary: var(--color-gray-900);--color-text-secondary: var(--color-gray-600);--color-text-tertiary: var(--color-gray-500);--color-text-light: var(--color-gray-400);--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-size-4xl: 36px;--font-size-5xl: 48px;--font-size-6xl: 60px;--font-weight-light: 300;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--font-weight-extrabold: 800;--line-height-tight: 1.2;--line-height-normal: 1.5;--line-height-relaxed: 1.7;--line-height-loose: 2;--heading-h1-font-size: var(--font-size-5xl);--heading-h1-font-weight: var(--font-weight-extrabold);--heading-h1-line-height: var(--line-height-tight);--heading-h2-font-size: var(--font-size-4xl);--heading-h2-font-weight: var(--font-weight-bold);--heading-h2-line-height: var(--line-height-tight);--heading-h3-font-size: var(--font-size-3xl);--heading-h3-font-weight: var(--font-weight-bold);--heading-h3-line-height: var(--line-height-tight);--heading-h4-font-size: var(--font-size-2xl);--heading-h4-font-weight: var(--font-weight-semibold);--heading-h4-line-height: var(--line-height-normal);--heading-h5-font-size: var(--font-size-xl);--heading-h5-font-weight: var(--font-weight-semibold);--heading-h5-line-height: var(--line-height-normal);--heading-h6-font-size: var(--font-size-lg);--heading-h6-font-weight: var(--font-weight-semibold);--heading-h6-line-height: var(--line-height-normal);--paragraph-font-size: var(--font-size-base);--paragraph-font-weight: var(--font-weight-normal);--paragraph-line-height: var(--line-height-relaxed);--paragraph-large-font-size: var(--font-size-lg);--paragraph-large-font-weight: var(--font-weight-normal);--paragraph-large-line-height: var(--line-height-relaxed);--paragraph-small-font-size: var(--font-size-sm);--paragraph-small-font-weight: var(--font-weight-normal);--paragraph-small-line-height: var(--line-height-normal);--grid-unit: 8px;--spacing-xs: calc(var(--grid-unit) * 1);--spacing-sm: calc(var(--grid-unit) * 2);--spacing-md: calc(var(--grid-unit) * 3);--spacing-lg: calc(var(--grid-unit) * 4);--spacing-xl: calc(var(--grid-unit) * 5);--spacing-2xl: calc(var(--grid-unit) * 6);--spacing-3xl: calc(var(--grid-unit) * 8);--spacing-4xl: calc(var(--grid-unit) * 10);--spacing-5xl: calc(var(--grid-unit) * 12);--spacing-6xl: calc(var(--grid-unit) * 16);--spacing-7xl: calc(var(--grid-unit) * 20);--radius-sm: calc(var(--grid-unit) * 1);--radius-md: calc(var(--grid-unit) * 2);--radius-lg: calc(var(--grid-unit) * 3);--radius-xl: calc(var(--grid-unit) * 4);--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-xl: 0 16px 32px rgba(0, 0, 0, .16);--transition-fast: .2s ease;--transition-normal: .3s ease;--transition-slow: .5s ease;--skeleton-base-light: #e0e0e0;--skeleton-highlight-light: #f5f5f5;--skeleton-base-dark: #2a2a2a;--skeleton-highlight-dark: #3a3a3a;--shimmer-duration: 1.5s;--shimmer-duration-slow: 2.5s;--shimmer-duration-fast: .8s;--loading-primary: var(--color-primary);--loading-success: var(--color-success);--loading-warning: var(--color-warning);--loading-danger: var(--color-danger);--progress-track: var(--color-gray-300);--progress-track-dark: var(--color-gray-700);--progress-fill: var(--color-primary);--progress-fill-success: var(--color-success);--progress-fill-warning: var(--color-warning);--progress-fill-danger: var(--color-danger);--loading-opacity: .9;--loading-backdrop: rgba(0, 0, 0, .5);--loading-backdrop-dark: rgba(0, 0, 0, .7);--skeleton-radius-sm: 4px;--skeleton-radius-md: 8px;--skeleton-radius-lg: 12px;--skeleton-radius-full: 9999px;--progress-height-sm: 4px;--progress-height-md: 8px;--progress-height-lg: 12px;--progress-height-xl: 16px;--pulse-duration: 2s;--bounce-duration: .6s;--fade-duration: .3s;--max-width-xs: 480px;--max-width-sm: 640px;--max-width-md: 768px;--max-width-lg: 1024px;--max-width-xl: 1200px;--max-width-2xl: 1400px;--max-width-full: 100%}.theme-transitioning *{transition:background-color var(--transition-normal),color var(--transition-normal),border-color var(--transition-normal),box-shadow var(--transition-normal),opacity var(--transition-normal),transform var(--transition-normal);transition-delay:0s;transition-property:background-color,color,border-color,box-shadow,opacity,transform}:root{--color-background: var(--vt-c-white);--color-background-soft: var(--vt-c-white-soft);--color-background-mute: var(--vt-c-white-mute);--color-border: var(--vt-c-divider-light-2);--color-border-hover: var(--vt-c-divider-light-1);--color-heading: var(--vt-c-text-light-1);--color-text: var(--vt-c-text-light-1);--section-gap: 160px}@media (prefers-color-scheme: dark){:root{--color-background: var(--vt-c-black-soft);--color-background-soft: var(--vt-c-black-soft);--color-background-mute: var(--vt-c-black-mute);--color-border: var(--vt-c-divider-dark-2);--color-border-hover: var(--vt-c-divider-dark-1);--color-heading: var(--vt-c-text-dark-1);--color-text: var(--vt-c-text-dark-2);--color-text-primary: #ffffff;--color-text-secondary: rgba(255, 255, 255, .9);--color-text-tertiary: rgba(255, 255, 255, .8);--color-text-light: rgba(255, 255, 255, .65)}}[data-theme=dark],.dark{--color-background: var(--vt-c-black-soft);--color-background-soft: var(--vt-c-black-soft);--color-background-mute: var(--vt-c-black-mute);--color-border: var(--vt-c-divider-dark-2);--color-border-hover: var(--vt-c-divider-dark-1);--color-heading: var(--vt-c-text-dark-1);--color-text: var(--vt-c-text-dark-2);--color-text-primary: #ffffff;--color-text-secondary: rgba(255, 255, 255, .9);--color-text-tertiary: rgba(255, 255, 255, .8);--color-text-light: rgba(255, 255, 255, .65)}[data-theme=light]{--color-background: var(--vt-c-white);--color-background-soft: var(--vt-c-white-soft);--color-background-mute: var(--vt-c-white-mute);--color-border: var(--vt-c-divider-light-2);--color-border-hover: var(--vt-c-divider-light-1);--color-heading: var(--vt-c-text-light-1);--color-text: var(--vt-c-text-light-1);--color-text-primary: var(--color-gray-900);--color-text-secondary: var(--color-gray-600);--color-text-tertiary: var(--color-gray-500);--color-text-light: var(--color-gray-400)}*,*:before,*:after{box-sizing:border-box;margin:0;font-weight:400}body{min-height:100vh;color:var(--color-text);background:var(--color-background);transition:color .5s,background-color .5s;line-height:1.6;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;font-size:15px;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{margin:0 auto;font-weight:400}a,.green{text-decoration:none;color:#00bd7e;transition:.4s;padding:3px}@media (hover: hover){a:hover{color:#55c0eb;background-color:#7e818033}}@media (min-width: 1024px){body{display:flex;place-items:center}#app{display:grid;grid-template-columns:1fr 1fr}}:root{--mobile-nav-height: 60px;--touch-target-min: 44px;--ripple-color: rgba(59, 130, 246, .3);--glass-bg: rgba(255, 255, 255, .85);--glass-bg-dark: rgba(15, 23, 42, .85);--transition-fast: .2s ease;--transition-normal: .3s ease}:root{--brand-primary: #6366f1;--brand-secondary: #8b5cf6;--brand-accent: #06b6d4;--brand-success: #10b981;--brand-warning: #f59e0b;--brand-danger: #ef4444;--light-bg-primary: #ffffff;--light-bg-secondary: #f8fafc;--light-bg-tertiary: #f1f5f9;--light-bg-elevated: #ffffff;--light-text-primary: #0f172a;--light-text-secondary: #475569;--light-text-tertiary: #94a3b8;--light-text-disabled: #cbd5e1;--light-border: #e2e8f0;--light-border-hover: #cbd5e1;--light-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--light-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--light-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--dark-bg-primary: #0a0a0a;--dark-bg-secondary: #141414;--dark-bg-tertiary: #1a1a1a;--dark-bg-elevated: #1e1e1e;--dark-text-primary: #ffffff;--dark-text-secondary: #e5e5e5;--dark-text-tertiary: #a0a0a0;--dark-text-disabled: #666666;--dark-border: #2a2a2a;--dark-border-hover: #3a3a3a;--dark-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .5);--dark-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .6), 0 2px 4px -1px rgba(0, 0, 0, .5);--dark-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .7), 0 4px 6px -2px rgba(0, 0, 0, .6);--bg-primary: var(--light-bg-primary);--bg-secondary: var(--light-bg-secondary);--bg-tertiary: var(--light-bg-tertiary);--bg-elevated: var(--light-bg-elevated);--text-primary: var(--light-text-primary);--text-secondary: var(--light-text-secondary);--text-tertiary: var(--light-text-tertiary);--text-disabled: var(--light-text-disabled);--border: var(--light-border);--border-hover: var(--light-border-hover);--shadow-sm: var(--light-shadow-sm);--shadow-md: var(--light-shadow-md);--shadow-lg: var(--light-shadow-lg);--hover-opacity: .8;--active-opacity: .6;--focus-ring: 0 0 0 3px rgba(99, 102, 241, .3);--ease-out: cubic-bezier(.16, 1, .3, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 24px;--space-6: 32px;--space-7: 48px;--space-8: 64px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 20px;--font-size-2xl: 24px;--font-size-3xl: 30px;--font-size-4xl: 36px;--font-size-5xl: 48px;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--font-weight-extrabold: 800;--max-width: 1280px;--header-height: 68px;--footer-height: 80px}[data-theme=dark]{--bg-primary: var(--dark-bg-primary);--bg-secondary: var(--dark-bg-secondary);--bg-tertiary: var(--dark-bg-tertiary);--bg-elevated: var(--dark-bg-elevated);--text-primary: var(--dark-text-primary);--text-secondary: var(--dark-text-secondary);--text-tertiary: var(--dark-text-tertiary);--text-disabled: var(--dark-text-disabled);--border: var(--dark-border);--border-hover: var(--dark-border-hover);--shadow-sm: var(--dark-shadow-sm);--shadow-md: var(--dark-shadow-md);--shadow-lg: var(--dark-shadow-lg);--focus-ring: 0 0 0 3px rgba(139, 92, 246, .4)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s var(--ease-in-out),color .3s var(--ease-in-out)}.heading-h1{font-size:var(--font-size-5xl);font-weight:var(--font-weight-extrabold);line-height:1.1;letter-spacing:-.02em;color:var(--text-primary)}.heading-h2{font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);line-height:1.2;letter-spacing:-.01em;color:var(--text-primary)}.heading-h3{font-size:var(--font-size-3xl);font-weight:var(--font-weight-semibold);line-height:1.3;color:var(--text-primary)}.heading-h4{font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold);line-height:1.4;color:var(--text-primary)}.text-body-large{font-size:var(--font-size-lg);font-weight:var(--font-weight-normal);line-height:1.7;color:var(--text-secondary)}.text-body{font-size:var(--font-size-base);font-weight:var(--font-weight-normal);line-height:1.6;color:var(--text-secondary)}.text-body-small{font-size:var(--font-size-sm);font-weight:var(--font-weight-normal);line-height:1.5;color:var(--text-tertiary)}.text-caption{font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);line-height:1.4;color:var(--text-disabled);text-transform:uppercase;letter-spacing:.05em}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-weight:var(--font-weight-semibold);font-size:var(--font-size-base);cursor:pointer;border:none;transition:all .2s var(--ease-out);text-decoration:none;white-space:nowrap;position:relative;overflow:hidden}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn-primary{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));color:#fff;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #6366f166}.btn-primary:active:not(:disabled){transform:translateY(0);opacity:.9}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--border-hover);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid transparent}.btn-ghost:hover:not(:disabled){background:var(--bg-secondary);color:var(--text-primary)}.btn-sm{padding:var(--space-2) var(--space-3);font-size:var(--font-size-sm);border-radius:var(--radius-sm)}.btn-lg{padding:var(--space-4) var(--space-6);font-size:var(--font-size-lg);border-radius:var(--radius-lg)}.btn-full{width:100%}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:var(--space-5);transition:all .3s var(--ease-in-out);box-shadow:var(--shadow-sm)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-hover)}.card-header{margin-bottom:var(--space-4)}.card-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin-bottom:var(--space-2)}.card-subtitle{font-size:var(--font-size-sm);color:var(--text-tertiary)}.card-content{color:var(--text-secondary)}.input-group{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-4)}.input-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--text-secondary)}.input-field{padding:var(--space-3) var(--space-4);background:var(--bg-secondary);border:2px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--font-size-base);transition:all .2s var(--ease-out)}.input-field:focus{outline:none;border-color:var(--brand-primary);box-shadow:var(--focus-ring);background:var(--bg-elevated)}.input-field::placeholder{color:var(--text-disabled)}.input-field:disabled{opacity:.6;cursor:not-allowed}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-5)}.section{padding:var(--space-8) 0}.section-header{text-align:center;margin-bottom:var(--space-7)}.section-title{font-size:var(--font-size-4xl);font-weight:var(--font-weight-extrabold);margin-bottom:var(--space-3);background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-subtitle{font-size:var(--font-size-lg);color:var(--text-secondary);max-width:600px;margin:0 auto}.navbar{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:var(--bg-elevated);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);z-index:1000;transition:all .3s var(--ease-in-out)}.navbar.scrolled{background:#fffffff2;box-shadow:var(--shadow-md)}[data-theme=dark] .navbar.scrolled{background:#0a0a0af2}.navbar-content{height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--space-5)}.nav-brand{display:flex;align-items:center;gap:var(--space-3);font-weight:var(--font-weight-bold);font-size:var(--font-size-xl);color:var(--text-primary);text-decoration:none}.nav-links{display:flex;gap:var(--space-4);align-items:center}.nav-link{padding:var(--space-2) var(--space-3);color:var(--text-secondary);text-decoration:none;font-weight:var(--font-weight-medium);border-radius:var(--radius-sm);transition:all .2s var(--ease-out)}.nav-link:hover{background:var(--bg-secondary);color:var(--text-primary)}.nav-link.active{background:var(--brand-primary);color:#fff}.hero{padding:calc(var(--header-height) + var(--space-8)) 0 var(--space-8);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:-20%;width:80%;height:150%;background:radial-gradient(circle,rgba(99,102,241,.1) 0%,transparent 70%);filter:blur(80px);z-index:-1}[data-theme=dark] .hero:before{background:radial-gradient(circle,rgba(139,92,246,.15) 0%,transparent 70%)}.hero-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-7);align-items:center}.hero-text{display:flex;flex-direction:column;gap:var(--space-4)}.hero-title{font-size:var(--font-size-5xl);font-weight:var(--font-weight-extrabold);line-height:1.1;letter-spacing:-.02em}.hero-title-gradient{background:linear-gradient(135deg,var(--brand-primary),var(--brand-secondary),var(--brand-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-description{font-size:var(--font-size-lg);color:var(--text-secondary);line-height:1.7}.hero-actions{display:flex;gap:var(--space-3);margin-top:var(--space-3)}.hero-stats{display:flex;gap:var(--space-5);margin-top:var(--space-5);padding-top:var(--space-5);border-top:1px solid 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