/* CSS Variables - Inherited Visual Family */
        :root {
            --bg-deep: #08090b;
            --bg-surface: #12141a;
            --bg-elevated: #1a1d26;
            --accent: #f1780e;
            --accent-hover: #ff8c2b;
            --accent-glow: rgba(241, 120, 14, 0.15);
            --accent-glow-strong: rgba(241, 120, 14, 0.3);
            --text-bright: #ffffff;
            --text-dim: #a0a5b5;
            --text-muted: #6b7280;
            --radius-lg: 22px;
            --radius-md: 18px;
            --radius-sm: 12px;
            --shadow-base: 0 10px 30px rgba(0, 0, 0, 0.6);
            --shadow-highlight: 0 4px 20px rgba(241, 120, 14, 0.15);
            --border-subtle: 1px solid rgba(255, 255, 255, 0.05);
            --border-glow: 1px solid rgba(241, 120, 14, 0.3);
            --transition: all 0.25s ease;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        /* Reset & Base */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg-deep);
            color: var(--text-dim);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        /* Mandatory Layout Rules */
        .flex-sheath {
            display: flex;
            flex-wrap: wrap;
        }
        .flex-node {
            min-width: 0;
        }
        .text-wrap {
            word-break: break-word;
            overflow-wrap: break-word;
        }
        .text-cn {
            word-break: keep-all;
        }

        /* Global Wrapper */
        .sheath {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* Header / Nav (Strictly Matching Provided HTML Structure) */
        .apex {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 9, 11, 0.8);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: var(--border-subtle);
        }

        .ribbon {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .seal {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .seal img {
            height: 32px;
            width: auto;
            display: block;
        }

        .stack {
            display: flex;
            gap: 32px;
            align-items: center;
            flex-wrap: wrap;
        }

        .path {
            color: var(--text-dim);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 0;
            position: relative;
            min-width: 0;
        }

        .path:hover {
            color: var(--text-bright);
        }

        .path.active {
            color: var(--text-bright);
        }

        .path.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px var(--accent);
        }

        /* Main Container */
        .binder {
            flex: 1;
            padding-top: 72px; /* Offset for sticky header */
            display: flex;
            flex-direction: column;
        }

        /* Shared Typography */
        .topic-xl {
            color: var(--text-bright);
            font-weight: 700;
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.15;
            letter-spacing: -0.02em;
            white-space: normal;
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .topic-lg {
            color: var(--text-bright);
            font-weight: 700;
            font-size: clamp(2rem, 4vw, 2.8rem);
            line-height: 1.2;
            letter-spacing: -0.01em;
            white-space: normal;
            margin-bottom: 16px;
            word-break: keep-all;
        }

        .topic-md {
            color: var(--text-bright);
            font-weight: 600;
            font-size: 1.5rem;
            line-height: 1.3;
            margin-bottom: 12px;
            white-space: normal;
        }

        .prose {
            font-size: 1.125rem;
            color: var(--text-dim);
            max-width: 800px;
            margin-bottom: 32px;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        .prose-highlight {
            color: var(--accent);
        }

        /* Shared Buttons / Macro */
        .macro-chunk {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 32px;
        }

        .macro {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: var(--transition);
            min-width: 0;
            text-align: center;
        }

        .macro-primary {
            background-color: var(--accent);
            color: #ffffff;
            border: 2px solid var(--accent);
            box-shadow: var(--shadow-highlight);
        }

        .macro-primary:hover {
            background-color: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(241, 120, 14, 0.4);
        }

        .macro-secondary {
            background-color: transparent;
            color: var(--text-bright);
            border: 2px solid rgba(255, 255, 255, 0.2);
        }

        .macro-secondary:hover {
            border-color: var(--text-bright);
            background-color: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        /* Layout Utility */
        .scroll-sheath {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 1. Hero Enterprise Section (<section>) */
        .cover {
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(circle at 50% 0%, rgba(241, 120, 14, 0.08) 0%, transparent 60%);
        }

        .cover-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .cover-prose {
            z-index: 2;
        }

        /* Data UI - Visual Carrier for Hero */
        .splash-data {
            position: relative;
            width: 100%;
            height: 480px;
            perspective: 1000px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .data-hub {
            position: relative;
            width: 400px;
            height: 400px;
            transform-style: preserve-3d;
            transform: rotateX(10deg) rotateY(-15deg);
        }

        .data-node {
            position: absolute;
            background: var(--bg-surface);
            border: var(--border-subtle);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-base);
            display: flex;
            align-items: center;
            gap: 16px;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .data-node:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-highlight);
            transform: translateZ(20px);
        }

        .node-center {
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) translateZ(40px);
            width: 240px;
            border: 1px solid rgba(241, 120, 14, 0.5);
            background: linear-gradient(135deg, var(--bg-elevated) 0%, #15100a 100%);
            z-index: 3;
        }

        .node-top { top: 0; left: 10%; transform: translateZ(-20px); width: 200px; z-index: 1;}
        .node-bottom { bottom: 0; right: 10%; transform: translateZ(10px); width: 220px; z-index: 2;}
        .node-side { top: 30%; right: -5%; transform: translateZ(-10px); width: 180px; z-index: 1;}

        .node-glyph {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .node-center .node-glyph {
            background: rgba(241, 120, 14, 0.2);
            color: var(--accent);
        }

        .node-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .node-topic {
            color: var(--text-bright);
            font-size: 0.9rem;
            font-weight: 600;
        }

        .node-desc {
            color: var(--text-dim);
            font-size: 0.75rem;
        }

        /* Connecting lines for Data UI */
        .data-line {
            position: absolute;
            background: linear-gradient(90deg, rgba(241, 120, 14, 0) 0%, rgba(241, 120, 14, 0.5) 50%, rgba(241, 120, 14, 0) 100%);
            height: 2px;
            width: 150px;
            top: 40%;
            left: 20%;
            transform: rotate(35deg);
            z-index: 0;
            opacity: 0.6;
        }
        .data-line-2 {
            top: 60%;
            right: 20%;
            left: auto;
            transform: rotate(-25deg);
            width: 180px;
        }

        /* 2. Solutions Section (<div>) */
        .draft {
            padding: 100px 0;
            background-color: var(--bg-deep);
            position: relative;
        }

        .draft-apex {
            text-align: center;
            margin-bottom: 64px;
        }

        .folio-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .folio {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            border: var(--border-subtle);
            box-shadow: var(--shadow-base);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .folio:hover {
            transform: translateY(-5px);
            border-color: rgba(241, 120, 14, 0.3);
            background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
        }

        .folio-glyph {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.03);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--accent);
        }

        .folio:hover .folio-glyph {
            background: rgba(241, 120, 14, 0.1);
            border-color: rgba(241, 120, 14, 0.2);
        }

        /* 3. Security Panel Section (<aside>) */
        .appendix-capability {
            padding: 100px 0;
            background: linear-gradient(to bottom, var(--bg-surface) 0%, var(--bg-deep) 100%);
            border-top: var(--border-subtle);
            border-bottom: var(--border-subtle);
        }

        .capability-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 80px;
            align-items: center;
        }

        .security-ui {
            background: #050608;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: inset 0 0 40px rgba(0,0,0,0.8), 0 20px 40px rgba(0,0,0,0.5);
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            position: relative;
            overflow: hidden;
        }

        .security-ui::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            opacity: 0.5;
        }

        .security-apex {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding-bottom: 16px;
            margin-bottom: 16px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }

        .security-log {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .log-node {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            font-size: 0.85rem;
            padding: 8px;
            border-radius: 6px;
            background: rgba(255,255,255,0.02);
        }

        .log-node:hover {
            background: rgba(255,255,255,0.05);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            margin-top: 6px;
            flex-shrink: 0;
        }

        .status-safe { background-color: #10B981; box-shadow: 0 0 8px #10B981; }
        .status-warn { background-color: var(--accent); box-shadow: 0 0 8px var(--accent); }

        .log-time { color: #6b7280; width: 60px; flex-shrink: 0;}
        .log-verb { color: var(--text-bright); flex: 1;}
        .log-user { color: var(--accent); }

        .feature-stack {
            list-style: none;
            margin-top: 32px;
        }

        .feature-node {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 20px;
            color: var(--text-bright);
            font-weight: 500;
        }

        .feature-glyph {
            color: var(--accent);
            display: flex;
            align-items: center;
        }

        /* 4. Pricing Table Section (<section>) */
        .sheet {
            padding: 120px 0;
            background-color: var(--bg-deep);
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-top: 64px;
            align-items: end;
        }

        .tier-folio {
            background: var(--bg-surface);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            border: var(--border-subtle);
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .tier-prime {
            background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-surface) 100%);
            border: 1px solid rgba(241, 120, 14, 0.4);
            box-shadow: 0 20px 50px rgba(0,0,0,0.8), 0 0 0 1px rgba(241, 120, 14, 0.2);
            transform: translateY(-16px);
            z-index: 10;
        }

        .tier-flag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .tier-name {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text-bright);
            margin-bottom: 8px;
        }

        .tier-price {
            font-size: 3rem;
            font-weight: 700;
            color: var(--text-bright);
            margin-bottom: 8px;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .tier-currency { font-size: 1.5rem; }
        .tier-period { font-size: 1rem; color: var(--text-dim); font-weight: 400;}

        .tier-desc {
            color: var(--text-dim);
            font-size: 0.95rem;
            margin-bottom: 32px;
            min-height: 48px;
        }

        .tier-divider {
            height: 1px;
            background: rgba(255,255,255,0.05);
            margin: 0 -32px 32px;
        }

        .tier-features {
            list-style: none;
            flex: 1;
            margin-bottom: 40px;
        }

        .tier-node {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 16px;
            color: var(--text-dim);
            font-size: 0.95rem;
        }

        .tier-node svg {
            color: var(--accent);
            flex-shrink: 0;
            margin-top: 4px;
        }

        .tier-macro {
            width: 100%;
            padding: 14px 0;
            text-align: center;
            border-radius: 100px;
            font-weight: 600;
            transition: var(--transition);
            display: block;
        }

        .tier-macro-base {
            background: rgba(255,255,255,0.05);
            color: var(--text-bright);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .tier-macro-base:hover {
            background: rgba(255,255,255,0.1);
        }

        /* Footer */
        .root {
            background-color: var(--bg-surface);
            border-top: var(--border-subtle);
            padding: 64px 0 32px;
            margin-top: auto;
        }

        .root-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 64px;
        }

        .root-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-bright);
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .root-prose {
            color: var(--text-dim);
            font-size: 0.9rem;
            max-width: 300px;
        }

        .root-topic {
            color: var(--text-bright);
            font-weight: 600;
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .root-stack {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .root-path {
            color: var(--text-dim);
            font-size: 0.95rem;
        }

        .root-path:hover {
            color: var(--accent);
        }

        .root-appendix {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .cover-grid, .capability-grid {
                grid-template-columns: 1fr;
                gap: 48px;
            }
            .splash-data {
                height: 400px;
            }
            .tier-prime {
                transform: none;
            }
            .pricing-grid {
                align-items: stretch;
            }
            .root-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .topic-xl { font-size: 2.2rem; }
            .topic-lg { font-size: 1.8rem; }
            .cover { padding: 100px 0 60px; }
            .draft, .appendix-capability, .sheet { padding: 60px 0; }
            
            .stack {
                display: none; /* In a real app, replaced by mobile menu */
            }
            
            .folio-matrix, .pricing-grid {
                grid-template-columns: 1fr;
            }
            
            .root-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .data-hub {
                transform: scale(0.8) rotateX(10deg) rotateY(-15deg);
            }
        }

.ribbon-apex .ribbon-scroll{
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

.ribbon-apex{
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(8, 9, 11, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

.ribbon-apex .ribbon-ribbon{
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

.ribbon-apex .ribbon-seal img{ height: 32px; width: auto; }

.ribbon-apex .ribbon-stack{
            display: flex;
            gap: 2rem;
        }

.ribbon-apex .ribbon-path{
            color: #a0a5b5;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            padding: 8px 0;
            position: relative;
        }

.ribbon-apex .ribbon-path:hover, .ribbon-apex .ribbon-path:focus{
            color: #ffffff;
        }

.ribbon-apex .ribbon-path.active{ color: #f1780e; }

.ribbon-apex .ribbon-path.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #f1780e;
            border-radius: 2px;
        }

@media (max-width: 992px){.ribbon-apex .ribbon-stack{ display: none;  }}

.ribbon-apex {
    background: rgb(8, 9, 11);
    background-image: none;
}

.endnote-root {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: break-word;
    color: var(--text-dim);
}
.endnote-root,
.endnote-root *,
.endnote-root *::before,
.endnote-root *::after {
    box-sizing: border-box;
}

.endnote-root nav,
.endnote-root div,
.endnote-root section,
.endnote-root article,
.endnote-root aside,
.endnote-root p,
.endnote-root h1,
.endnote-root h2,
.endnote-root h3,
.endnote-root h4,
.endnote-root h5,
.endnote-root h6,
.endnote-root a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.endnote-root p,
.endnote-root h1,
.endnote-root h2,
.endnote-root h3,
.endnote-root h4,
.endnote-root h5,
.endnote-root h6 {
    text-decoration: none;
}

.endnote-root img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.endnote-root {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.endnote-root a,
.endnote-root a:hover,
.endnote-root a:focus,
.endnote-root a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.endnote-root .endnote-scroll{
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

.endnote-root .endnote-topic{
            color: #ffffff;
            white-space: normal;
            font-weight: 700;
        }

.endnote-root .endnote-prose{ word-break: keep-all; margin-bottom: 1.5rem; }

.endnote-root .endnote-path{
            color: #a0a5b5;
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s ease;
            padding: 8px 0;
            position: relative;
        }

.endnote-root .endnote-path:hover, .endnote-root .endnote-path:focus{
            color: #ffffff;
        }

.endnote-root .endnote-path.active{ color: #f1780e; }

.endnote-root .endnote-path.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #f1780e;
            border-radius: 2px;
        }

.endnote-root{
            background-color: #050608;
            padding: 60px 0 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

.endnote-root .endnote-root-grid{
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 4rem;
            margin-bottom: 4rem;
        }

.endnote-root .endnote-topic{ font-size: 1.5rem; margin-bottom: 1.5rem; color: #fff; }

.endnote-root .endnote-root-links{ display: flex; flex-direction: column; gap: 0.8rem; }

.endnote-root .endnote-root-links .endnote-path{ padding: 0; font-size: 0.95rem; }

.endnote-root .endnote-legal{
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #a0a5b5;
        }

@media (max-width: 992px){.endnote-root .endnote-root-grid{ grid-template-columns: 1fr; gap: 2rem; }}