@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--color-primary: #00629B;--color-primary-dark: #004876;--color-primary-light: #0080C6;--color-accent: #78BE20;--color-accent-dark: #5A8F16;--color-white: #FFFFFF;--color-off-white: #F5F7FA;--color-gray-100: #EEF1F5;--color-gray-200: #D8DEE9;--color-gray-400: #9AA5B8;--color-gray-600: #5E6D82;--color-gray-800: #2D3748;--color-black: #111827;--color-text: var(--color-gray-800);--color-text-muted: var(--color-gray-600);--color-text-light: var(--color-gray-400);--color-border: var(--color-gray-200);--color-bg: var(--color-white);--color-bg-alt: var(--color-off-white);--color-success: #1A7A4A;--font-sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--font-heading: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-md: 1.125rem;--text-lg: 1.25rem;--text-xl: 1.5rem;--text-2xl: 1.875rem;--text-3xl: 2.25rem;--text-4xl: 3rem;--text-5xl: 3.75rem;--text-6xl: 4.5rem;--text-7xl: 6rem;--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--weight-extrabold: 800;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.6;--leading-relaxed:1.75;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--max-width: 1200px;--max-width-lg: 1400px;--container-px: clamp(1rem, 5vw, 2rem);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--border-width: 1px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 10px 30px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.04);--shadow-xl: 0 20px 50px rgba(0,0,0,.12);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease;--z-base: 1;--z-dropdown:100;--z-sticky: 200;--z-overlay: 300;--z-modal: 400;--z-toast: 500}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;max-width:100%;overflow-x:hidden}body{font-family:var(--font-sans);font-size:var(--text-base);font-weight:var(--weight-normal);line-height:var(--leading-normal);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;max-width:100%;overflow-x:hidden}img,svg,video{display:block;max-width:100%;height:auto}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-dark)}ul,ol{list-style:none}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:none;border:none}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:var(--weight-bold);line-height:var(--leading-tight);color:var(--color-black)}h1{font-weight:var(--weight-extrabold)}p{margin-bottom:var(--space-4)}p:last-child{margin-bottom:0}.text-xs{font-size:var(--text-xs)}.text-sm{font-size:var(--text-sm)}.text-base{font-size:var(--text-base)}.text-md{font-size:var(--text-md)}.text-lg{font-size:var(--text-lg)}.text-xl{font-size:var(--text-xl)}.text-2xl{font-size:var(--text-2xl)}.text-3xl{font-size:var(--text-3xl)}.text-4xl{font-size:var(--text-4xl)}.font-medium{font-weight:var(--weight-medium)}.font-semibold{font-weight:var(--weight-semibold)}.font-bold{font-weight:var(--weight-bold)}.text-muted{color:var(--color-text-muted)}.text-light{color:var(--color-text-light)}.text-white{color:var(--color-white)}.text-primary{color:var(--color-primary)}.text-accent{color:var(--color-accent)}.text-center{text-align:center}.text-left{text-align:left}.text-right{text-align:right}.uppercase{text-transform:uppercase}.tracking-wide{letter-spacing:.05em}.tracking-wider{letter-spacing:.1em}.container{width:100%;max-width:var(--max-width);margin-inline:auto;padding-inline:var(--container-px)}.container--wide{max-width:var(--max-width-lg)}.section{padding-block:var(--space-20)}.section--sm{padding-block:var(--space-12)}.section--lg{padding-block:var(--space-24)}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.items-start{align-items:flex-start}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.grid{display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.mt-2{margin-top:var(--space-2)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mt-8{margin-top:var(--space-8)}.mb-2{margin-bottom:var(--space-2)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.mb-8{margin-bottom:var(--space-8)}.hidden{display:none}.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}.section-label{display:block;font-size:var(--text-xs);font-weight:var(--weight-semibold);letter-spacing:.1em;text-transform:uppercase;color:var(--color-accent);margin-bottom:var(--space-6);position:relative;padding-bottom:var(--space-4)}.section-label:before{content:"";display:block;width:32px;height:3px;background:var(--color-accent);margin-bottom:var(--space-4)}.section-title{font-size:clamp(var(--text-2xl),3.5vw,var(--text-3xl));font-weight:var(--weight-extrabold);color:var(--color-black);margin-bottom:var(--space-4);line-height:1.1}.section-subtitle{font-size:var(--text-md);color:var(--color-text-muted);max-width:640px;line-height:var(--leading-relaxed)}.divider{border:none;border-top:var(--border-width) solid var(--color-border);margin-block:var(--space-8)}.bg-white{background-color:var(--color-white)}.bg-alt{background-color:var(--color-bg-alt)}.bg-primary{background-color:var(--color-primary)}.bg-dark{background-color:var(--color-black)}.section--alt{background-color:var(--color-bg-alt)}@media (max-width: 768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.hide-mobile{display:none}}@media (max-width: 1024px){.grid-4,.grid-3{grid-template-columns:repeat(2,1fr)}.hide-tablet{display:none}}.ieee-bar{background:#f4f4f4;border-bottom:1px solid #ddd;font-size:11px;font-weight:var(--weight-medium);letter-spacing:.02em;color:#555;padding-block:5px}.ieee-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.ieee-bar__links{display:flex;align-items:center;flex-wrap:wrap}.ieee-bar__links a{color:#555;padding:2px var(--space-3);border-right:1px solid #ccc;transition:color var(--transition-fast);white-space:nowrap}.ieee-bar__links a:first-child{padding-left:0}.ieee-bar__links a:last-child{border-right:none}.ieee-bar__links a:hover{color:var(--color-primary);text-decoration:underline}.ieee-bar__logo-link{display:flex;align-items:center;flex-shrink:0}.ieee-bar__logo{height:22px;width:auto;display:block}.chapter-header{background:var(--color-white);border-bottom:3px solid var(--color-accent);padding-block:var(--space-3)}.chapter-header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.chapter-header__logo-link{display:flex;align-items:center;text-decoration:none;flex-shrink:0}.chapter-header__logo{height:52px;width:auto;display:block}.chapter-header__actions{display:flex;align-items:center;gap:var(--space-3)}.search-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-full);color:var(--color-gray-600);border:1px solid var(--color-border);cursor:pointer;background:transparent;transition:background var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast);flex-shrink:0}.search-toggle:hover,.search-toggle.is-active{background:var(--color-primary);color:var(--color-white);border-color:var(--color-primary)}.site-search{background:var(--color-white);border-bottom:var(--border-width) solid var(--color-border);box-shadow:0 6px 20px #0000001a;display:none}.site-search.is-open{display:block}.site-search__inner{display:flex;align-items:center;gap:var(--space-3);padding-block:var(--space-3)}.site-search__icon{color:var(--color-text-muted);flex-shrink:0}.site-search__input{flex:1;border:none;outline:none;font-size:var(--text-base);font-family:var(--font-sans);color:var(--color-text);background:transparent;padding:var(--space-1) 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.site-search__result-title{color:var(--color-primary)}.site-search__result-icon{width:32px;height:32px;border-radius:var(--radius-md);background:#00629b14;color:var(--color-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0}.site-search__result-title{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-black);margin-bottom:2px;transition:color var(--transition-fast)}.site-search__result-desc{font-size:var(--text-xs);color:var(--color-text-muted);line-height:1.4}.site-search__empty{padding:var(--space-5);text-align:center;font-size:var(--text-sm);color:var(--color-text-muted)}.navbar{position:sticky;top:0;z-index:var(--z-sticky);background:var(--color-primary);box-shadow:0 2px 8px 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