*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        :root {
            --bg: #080C12;
            --bg-card: #161E28;
            --bg-elevated: #1E2A36;
            --border: #1E2A36;
            --text: #F0F2F5;
            --text-secondary: #A0B0C0;
            --text-muted: #8494A7;
            --cyan: #22D3EE;
            --cyan-dim: rgba(34,211,238,0.12);
            --amber: #F59E0B;
            --emerald: #34D399;
            --blue: #3B82F6;
            --green: #22c55e;
        }
        html { scroll-behavior: smooth; }
        body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        h1, h2, h3 { font-family: 'Urbanist', sans-serif; }

        .pp-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 200; padding: 14px 0; transition: background 0.4s, backdrop-filter 0.4s, box-shadow 0.4s; }
        .pp-nav.scrolled { background: rgba(8,12,18,0.88); backdrop-filter: blur(24px) saturate(180%); -webkit-backdrop-filter: blur(24px) saturate(180%); border-bottom: 1px solid rgba(30,42,54,0.6); box-shadow: 0 4px 30px rgba(0,0,0,0.3); }
        .pp-nav .container { display: flex; align-items: center; justify-content: space-between; }
        .pp-nav-brand { text-decoration: none; display: flex; align-items: center; gap: 10px; }
        .pp-nav-brand-text { font-family: 'Urbanist', sans-serif; font-weight: 800; font-size: 1.1rem; letter-spacing: -0.02em; color: var(--text); }
        .pp-nav-brand-text .swap { color: var(--cyan); }
        .pp-nav-brand-text .ai { font-size: 0.44em; font-weight: 700; color: #67E8F9; position: relative; top: 0.05em; margin-left: 0.12em; }
        .pp-nav-links { display: flex; align-items: center; gap: 28px; }
        .pp-nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; font-weight: 500; transition: color 0.2s; font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-nav-links a:hover { color: var(--text); }
        .pp-nav-cta { background: var(--cyan); color: #0E1117; padding: 9px 22px; border-radius: 8px; font-weight: 700; font-size: 0.85rem; text-decoration: none; transition: all 0.2s; font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-nav-cta:hover { background: #06B6D4; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(34,211,238,0.3); }
        .pp-mobile-toggle { display: none; background: none; border: none; color: var(--text); cursor: pointer; padding: 4px; }
        .pp-mobile-panel { display: none; }
        @media (max-width: 768px) {
            .pp-nav-links { display: none; }
            .pp-mobile-toggle { display: block; }
            .pp-mobile-panel.open { display: flex; flex-direction: column; position: fixed; top: 0; right: 0; bottom: 0; width: 280px; background: rgba(8,12,18,0.98); backdrop-filter: blur(20px); padding: 80px 28px 28px; gap: 20px; z-index: 199; border-left: 1px solid var(--border); }
            .pp-mobile-panel a { color: var(--text-secondary); text-decoration: none; font-size: 1rem; font-weight: 500; padding: 8px 0; font-family: 'Plus Jakarta Sans', sans-serif; }
            .pp-mobile-panel a:hover { color: var(--text); }
            .pp-mobile-overlay { display: none; }
            .pp-mobile-overlay.open { display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 198; }
            .pp-mobile-close { position: absolute; top: 20px; right: 20px; background: none; border: none; color: var(--text); cursor: pointer; }
        }

        .pp-header { padding: 140px 0 40px; text-align: center; position: relative; }
        .pp-header::before { content: ''; position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 800px; height: 800px; background: radial-gradient(circle, rgba(34,211,238,0.06) 0%, transparent 70%); pointer-events: none; }
        .pp-updated-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--cyan-dim); border: 1px solid rgba(34,211,238,0.25); border-radius: 20px; padding: 6px 16px; font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; font-weight: 600; color: var(--cyan); margin-bottom: 20px; letter-spacing: 0.8px; }
        .pp-header h1 { font-size: 3rem; font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px; position: relative; }
        .pp-header-sub { font-family: 'Plus Jakarta Sans', sans-serif; color: var(--text-secondary); font-size: 1rem; line-height: 1.7; max-width: 700px; margin: 0 auto 12px; position: relative; }
        .pp-header-entity { font-family: 'Plus Jakarta Sans', sans-serif; color: var(--text-muted); font-size: 0.88rem; position: relative; }
        @media (max-width: 768px) {
            .pp-header { padding: 110px 0 30px; }
            .pp-header h1 { font-size: 2rem; }
        }

        .pp-layout { display: grid; grid-template-columns: 260px 1fr; gap: 40px; padding: 40px 0 80px; align-items: start; }
        @media (max-width: 960px) { .pp-layout { grid-template-columns: 1fr; gap: 0; } }

        .pp-toc { position: sticky; top: 80px; }
        .pp-toc-inner { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
        .pp-toc-title { font-family: 'JetBrains Mono', monospace; font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); margin-bottom: 16px; }
        .pp-toc-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
        .pp-toc-list a { display: flex; align-items: flex-start; gap: 10px; text-decoration: none; padding: 7px 10px; border-radius: 8px; transition: all 0.2s; font-family: 'Plus Jakarta Sans', sans-serif; font-size: 0.8rem; color: var(--text-muted); line-height: 1.4; }
        .pp-toc-list a:hover { color: var(--text-secondary); background: var(--bg-elevated); }
        .pp-toc-list a.active { color: var(--cyan); background: var(--cyan-dim); }
        .pp-toc-list .toc-num { font-family: 'JetBrains Mono', monospace; font-weight: 600; color: var(--cyan); font-size: 0.72rem; flex-shrink: 0; min-width: 18px; }
        @media (max-width: 960px) {
            .pp-toc { position: relative; top: 0; margin-bottom: 24px; }
            .pp-toc-inner { border-radius: 12px; }
            .pp-toc-list { display: none; }
            .pp-toc-list.open { display: flex; }
            .pp-toc-toggle { display: flex; align-items: center; justify-content: space-between; cursor: pointer; padding: 4px 0; }
            .pp-toc-toggle-icon { transition: transform 0.2s; }
            .pp-toc-toggle-icon.open { transform: rotate(180deg); }
        }
        @media (min-width: 961px) {
            .pp-toc-toggle { display: none; }
        }

        .pp-sections { display: flex; flex-direction: column; gap: 20px; min-width: 0; }

        .pp-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 32px; }
        @media (max-width: 768px) { .pp-card { padding: 24px 20px; } }
        .pp-card-header { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
        .pp-section-num { font-family: 'Urbanist', sans-serif; font-weight: 700; font-size: 1.4rem; color: var(--cyan); flex-shrink: 0; line-height: 1.2; }
        .pp-section-title { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; font-size: 1.15rem; line-height: 1.3; }
        .pp-card p, .pp-card li { font-family: 'DM Sans', sans-serif; font-weight: 400; font-size: 0.85rem; line-height: 1.7; color: var(--text-secondary); }
        .pp-card p { margin-bottom: 14px; }
        .pp-card p:last-child { margin-bottom: 0; }
        .pp-card strong { color: var(--text); font-weight: 600; }
        .pp-card a { color: var(--cyan); text-decoration: none; }
        .pp-card a:hover { text-decoration: underline; }
        .pp-sub-heading { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 600; font-size: 0.88rem; color: var(--text); margin-top: 20px; margin-bottom: 10px; }
        .pp-card ul { list-style: none; padding: 0; margin: 0 0 14px 0; }
        .pp-card ul li { position: relative; padding-left: 18px; margin-bottom: 6px; }
        .pp-card ul li::before { content: ''; position: absolute; left: 0; top: 9px; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); opacity: 0.6; }
        .pp-card ul:last-child { margin-bottom: 0; }

        .pp-contact-block { background: var(--bg-elevated); border-radius: 12px; padding: 20px 24px; margin-top: 16px; }
        .pp-contact-block p { margin-bottom: 4px; }
        .pp-contact-block p:last-child { margin-bottom: 0; }

        .pp-footer { padding: 60px 0 30px; border-top: 1px solid var(--border); }
        .pp-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
        @media (max-width: 768px) { .pp-footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
        .pp-footer-brand p { color: var(--text-muted); font-size: 0.85rem; margin-top: 12px; line-height: 1.6; font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-footer-col h5 { font-family: 'JetBrains Mono', monospace; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); margin-bottom: 16px; }
        .pp-footer-col a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 0.88rem; margin-bottom: 10px; transition: color 0.2s; font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-footer-col a:hover { color: var(--text); }
        .pp-footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; padding-top: 24px; border-top: 1px solid var(--border); }
        .pp-footer-bottom p { font-size: 0.75rem; color: var(--text-muted); font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-footer-legal { display: flex; gap: 20px; }
        .pp-footer-legal a { font-size: 0.75rem; color: var(--text-muted); text-decoration: none; font-family: 'Plus Jakarta Sans', sans-serif; }
        .pp-footer-legal a:hover { color: var(--text-secondary); }
        .pp-footer-legal a.current { color: var(--cyan); }