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monospace}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-feature-settings:"ss01", "cv11";font-size:16px;line-height:1.55}a{color:inherit;text-decoration:none}button{font:inherit}::selection{background:var(--primary);color:#fff}.wn-mono{font-family:var(--mono);font-feature-settings:"zero", "ss01"}.wn-skip{z-index:100;background:var(--text);color:#fff;border-radius:var(--r-sm);padding:10px 14px;font-size:.88rem;font-weight:600;transition:top .2s;position:fixed;top:-100px;left:16px}.wn-skip:focus{top:16px}.wn-progress{background:linear-gradient(to right, var(--secondary) 0%, var(--primary) 33%, var(--tertiary) 66%, var(--accent) 100%);transform-origin:0;z-index:90;height:2px;position:fixed;top:0;left:0;right:0}.wn-page{background:var(--bg);min-height:100vh;position:relative;overflow-x:hidden}.wn-page:before{content:"";pointer-events:none;opacity:.4;z-index:1;background-image:linear-gradient(to right, var(--line-soft) 1px, transparent 1px), linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);background-size:64px 64px;position:fixed;inset:0;-webkit-mask-image:radial-gradient(#000 0%,#0000 80%);mask-image:radial-gradient(#000 0%,#0000 80%)}.wn-flying{z-index:1;color:var(--primary-deep);opacity:.22;pointer-events:none;position:absolute}.wn-topbar{z-index:2;background:var(--text);color:#fff;text-align:center;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;padding:9px 22px;font-size:.74rem;font-weight:500;display:flex;position:relative}.wn-topbar-dot{background:var(--accent);border-radius:50%;width:6px;height:6px;animation:1.8s ease-in-out infinite wn-pulse;box-shadow:0 0 0 3px #b8651e4d}@keyframes wn-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}.wn-topbar-sep{opacity:.4}.wn-topbar a{color:#ffffffd9;border-bottom:1px solid #ffffff4d;padding-bottom:1px}.wn-topbar a:hover{color:#fff}.wn-header{z-index:2;border-bottom:1px solid var(--line-soft);justify-content:space-between;align-items:center;gap:24px;max-width:1280px;margin:0 auto;padding:22px 32px 18px;display:flex;position:relative}.wn-brand{align-items:center;gap:14px;display:flex}.wn-logo{border-radius:var(--r-sm);color:#fff;background:conic-gradient(from 45deg, var(--secondary) 0deg 90deg, var(--primary) 90deg 180deg, var(--accent) 180deg 270deg, var(--tertiary) 270deg 360deg);border:1px solid var(--line-strong);place-items:center;width:44px;height:44px;display:grid;position:relative;overflow:hidden}.wn-logo>svg{z-index:1;background:var(--surface);width:28px;height:28px;color:var(--text);border-radius:50%;padding:4px;position:relative}.wn-brand-kicker{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em;color:var(--primary);margin:0 0 1px;font-size:.66rem;font-weight:500}.wn-brand-title{font-family:var(--serif);letter-spacing:-.01em;margin:0;font-size:1.2rem;font-weight:700}.wn-brand-title em{color:var(--primary);font-style:italic;font-weight:500}.wn-nav{color:var(--text-soft);gap:2px;font-size:.88rem;font-weight:500;display:flex}.wn-nav a{border-radius:var(--r-xs);padding:8px 14px;transition:all .15s}.wn-nav a:hover{background:var(--primary-faint);color:var(--primary)}.wn-hero{z-index:2;grid-template-columns:1.1fr .9fr;align-items:center;gap:56px;max-width:1280px;margin:0 auto;padding:80px 32px 100px;display:grid;position:relative}.wn-hero-meta{font-family:var(--mono);text-transform:uppercase;letter-spacing:.14em;color:var(--text-muted);align-items:center;gap:16px;margin-bottom:24px;font-size:.74rem;display:flex}.wn-hero-meta-num{color:var(--primary);font-weight:600}.wn-hero-meta-line{background:var(--line-strong);width:36px;height:1px}.wn-hero-title{font-family:var(--serif);letter-spacing:-.022em;color:var(--text);margin:0 0 22px;font-size:clamp(2.6rem,5vw,4.4rem);font-weight:700;line-height:1.02}.wn-hero-title em{color:var(--primary);font-style:italic;font-weight:500}.wn-hero-desc{max-width:560px;color:var(--text-soft);margin:0;font-size:1.04rem;line-height:1.65}.wn-hero-actions{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}.wn-btn{border-radius:var(--r-sm);cursor:pointer;font-size:.92rem;font-weight:600;font-family:var(--sans);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:12px 20px;transition:all 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"tnum";margin-bottom:6px;font-size:1.7rem;font-weight:700;line-height:1}.wn-hero-key-label{font-family:var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:.7rem}.wn-hero-visual{place-items:center;min-height:520px;display:grid;position:relative}.wn-hero-halo{filter:blur(8px);z-index:0;background:radial-gradient(circle,#b8651e2e 0%,#b8651e0f 35%,#0000 70%);border-radius:50%;width:360px;height:360px;margin:auto;animation:7s ease-in-out infinite wn-halo;position:absolute;inset:0}@keyframes wn-halo{0%,to{opacity:.85;transform:scale(1)}50%{opacity:1;transform:scale(1.06)}}.wn-hero-orbit{border:1px dashed var(--line-strong);z-index:1;border-radius:50%;width:380px;height:380px;margin:auto;position:absolute;inset:0}.wn-hero-orbit:before{content:"";border:1px dotted var(--line);border-radius:50%;width:280px;height:280px;margin:auto;position:absolute;inset:0}.wn-hero-center{z-index:3;width:240px;height:240px;color:var(--primary-deep);filter:drop-shadow(0 12px 28px #0a16281f);place-items:center;display:grid;position:relative}.wn-hero-card{z-index:2;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);width:158px;box-shadow:var(--shadow-xs);flex-direction:column;align-items:flex-start;padding:14px 14px 12px;display:flex;position:absolute}.wn-hero-card-icon{width:36px;height:36px;color:var(--primary);place-items:center;margin-bottom:8px;display:grid}.wn-hero-card-title{font-family:var(--serif);color:var(--text);letter-spacing:-.005em;margin:0;font-size:.94rem;font-weight:700}.wn-hero-card-meta{font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin:2px 0 0;font-size:.66rem}.wn-hero-card-bird{top:4%;left:0%}.wn-hero-card-horse{top:8%;right:0%}.wn-hero-card-family{bottom:6%;right:0%}.wn-hero-card-virus{bottom:4%;left:0%}.wn-stats{z-index:2;border-top:1px solid var(--line);grid-template-columns:repeat(4,1fr);gap:0;max-width:1280px;margin:0 auto;padding:0 32px 80px;display:grid;position:relative}.wn-stat{border-right:1px solid var(--line-soft);padding:28px 24px}.wn-stat:last-child{border-right:0}.wn-stat-num{font-family:var(--serif);letter-spacing:-.025em;color:var(--text);font-feature-settings:"lnum", "tnum";margin-bottom:8px;font-size:clamp(2.4rem,4.5vw,3.4rem);font-weight:700;line-height:1}.wn-stat-num-suffix{color:var(--text-muted);margin-left:4px;font-size:.6em;font-weight:500}.wn-stat-label{font-family:var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:4px;font-size:.7rem}.wn-stat-desc{color:var(--text-soft);margin:0;font-size:.92rem;line-height:1.5}.wn-section{z-index:2;max-width:1280px;margin:0 auto;padding:96px 32px;position:relative}.wn-section-alt{background:var(--bg-section);border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-width:none}.wn-section-alt>*{max-width:1280px;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}.wn-section-dark{background:var(--text);color:#f4f7f9;border:0;max-width:none}.wn-section-dark>*{max-width:1280px;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}.wn-section-dark .wn-section-tag{color:var(--accent-soft)}.wn-section-dark .wn-section-num{color:var(--accent)}.wn-section-dark .wn-section-head h3{color:#fff}.wn-section-dark .wn-section-head h3 em{color:var(--accent-soft)}.wn-section-dark .wn-section-head p{color:#f4f7f9b8}.wn-section-head{max-width:760px;margin-bottom:48px}.wn-section-tag{font-family:var(--mono);text-transform:uppercase;letter-spacing:.18em;color:var(--text-muted);align-items:baseline;gap:14px;margin:0 0 18px;font-size:.74rem;font-weight:500;display:inline-flex}.wn-section-num{color:var(--primary);font-weight:600}.wn-section-tag:after{content:"";background:var(--line);flex:1;min-width:40px;height:1px}.wn-section-head h3{font-family:var(--serif);letter-spacing:-.022em;color:var(--text);margin:0 0 16px;font-size:clamp(1.9rem,3.6vw,2.8rem);font-weight:700;line-height:1.1}.wn-section-head h3 em{color:var(--primary);font-style:italic;font-weight:500}.wn-section-head p{color:var(--text-soft);max-width:640px;margin:0;font-size:1.02rem;line-height:1.65}.wn-grid{gap:18px;display:grid}.wn-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.wn-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.wn-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.wn-card{border-radius:var(--r);text-align:left;background:var(--surface);border:1px solid var(--line);padding:28px 26px;transition:border-color .2s,transform .2s,box-shadow 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10px;font-size:1.18rem;font-weight:700;line-height:1.3}.wn-card p{color:var(--text-soft);margin:0;font-size:.94rem;line-height:1.6}.wn-card strong{color:var(--text);font-weight:600}.wn-card-tag{font-family:var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin:0 0 12px;font-size:.66rem;font-weight:500;display:inline-block}.wn-about{grid-template-columns:1.1fr .9fr;gap:24px;display:grid}.wn-about-card{background:var(--surface);border-radius:var(--r);border:1px solid var(--line);padding:32px 30px}.wn-about-card h4{font-family:var(--serif);letter-spacing:-.01em;color:var(--text);margin:0 0 14px;font-size:1.3rem;font-weight:700}.wn-about-card p{color:var(--text-soft);margin:0 0 14px;font-size:.98rem;line-height:1.65}.wn-about-card p:last-child{margin-bottom:0}.wn-about-card strong{color:var(--text);font-weight:600}.wn-about-pillars{background:var(--primary-faint);border-color:var(--primary-soft)}.wn-pillar-list{gap:18px;margin-top:8px;display:grid}.wn-pillar{align-items:flex-start;gap:14px;display:flex}.wn-pillar-icon{border-radius:var(--r-sm);width:36px;height:36px;font-size:1rem;font-family:var(--serif);background:var(--surface);border:1.5px solid var(--line);flex-shrink:0;place-items:center;font-weight:700;display:grid}.wn-pillar-icon.human{color:var(--accent);border-color:var(--accent-soft);background:var(--accent-faint)}.wn-pillar-icon.animal{color:var(--tertiary);border-color:var(--tertiary-soft);background:var(--tertiary-faint)}.wn-pillar-icon.env{color:var(--secondary);border-color:var(--secondary-soft);background:var(--secondary-faint)}.wn-pillar-icon.global{color:var(--primary);border-color:var(--primary-soft);background:var(--primary-faint)}.wn-pillar-text{flex:1}.wn-pillar-text h5{font-family:var(--serif);color:var(--text);margin:0 0 4px;font-size:1.02rem;font-weight:700}.wn-pillar-text p{color:var(--text-soft);margin:0;font-size:.9rem;line-height:1.55}.wn-cycle-wrap{background:var(--surface);border-radius:var(--r);border:1px solid var(--line);margin-top:8px;padding:32px 24px 18px}.wn-cycle-svg{width:100%;max-width:760px;height:auto;margin:0 auto;display:block;overflow:visible}.wn-cycle-svg .cycle-orbit{fill:none;stroke:var(--line-strong);stroke-width:1px;stroke-dasharray:2 6;opacity:.55}.wn-cycle-svg .cycle-arc{fill:none;stroke:var(--primary);stroke-width:2px;stroke-linecap:round}.wn-cycle-svg .cycle-arc-dead{fill:none;stroke:var(--text-muted);stroke-width:1.5px;stroke-linecap:round;stroke-dasharray:7 5;opacity:.7}.wn-cycle-svg .cycle-particle{fill:var(--accent)}.wn-cycle-svg .cycle-particle-dead{fill:var(--text-muted);opacity:.6}.wn-cycle-svg .cycle-node-bg{fill:var(--surface);stroke-width:2px;filter:drop-shadow(0 4px 10px #0a162814)}.wn-cycle-svg .cycle-node-bird{stroke:var(--secondary)}.wn-cycle-svg .cycle-node-mosq{stroke:var(--accent);fill:var(--accent-faint)}.wn-cycle-svg .cycle-node-human{stroke:var(--tertiary)}.wn-cycle-svg .cycle-label{font-family:var(--serif);fill:var(--text);letter-spacing:-.01em;font-size:17px;font-weight:700}.wn-cycle-svg .cycle-sublabel{font-family:var(--mono);fill:var(--text-muted);letter-spacing:.04em;text-transform:uppercase;font-size:11px;font-weight:500}.wn-cycle-svg .cycle-center-title{font-family:var(--mono);fill:var(--text-muted);letter-spacing:.18em;text-transform:uppercase;font-size:11px;font-weight:600}.wn-cycle-svg .cycle-center-sub{font-family:var(--serif);fill:var(--primary);letter-spacing:-.02em;font-size:22px;font-weight:700}.wn-cycle-legend{border-radius:var(--r-sm);background:var(--bg-section);border:1px solid var(--line-soft);font-size:.85rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);flex-wrap:wrap;justify-content:center;gap:24px;margin-top:14px;padding:14px 18px;display:flex}.wn-cycle-legend-item{align-items:center;gap:8px;display:inline-flex}.wn-cycle-legend-swatch{border-radius:4px;width:24px;height:2px}.wn-cycle-legend-swatch.solid{background:var(--primary)}.wn-cycle-legend-swatch.dashed{background:repeating-linear-gradient(to right, var(--text-muted) 0 4px, transparent 4px 8px);height:2px}.wn-chart{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:32px 32px 26px}.wn-chart-bars{gap:24px;display:grid}.wn-chart-bar-head{justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:8px;display:flex}.wn-chart-bar-label{font-family:var(--serif);color:var(--text);font-size:1.05rem;font-weight:700}.wn-chart-bar-pct{font-family:var(--mono);color:var(--text);font-feature-settings:"tnum";font-size:1.1rem;font-weight:600}.wn-chart-bar-pct-note{color:var(--text-muted);margin-left:2px;font-size:.72em}.wn-chart-bar-track{background:var(--bg-subtle);border:1px solid var(--line-soft);border-radius:999px;height:10px;overflow:hidden}.wn-chart-bar-fill{border-radius:999px;height:100%;position:relative;overflow:hidden}.wn-chart-bar-fill:after{content:"";background:linear-gradient(90deg,#0000 0%,#ffffff4d 50%,#0000 100%);animation:2.4s linear infinite wn-shimmer;position:absolute;inset:0}@keyframes wn-shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.wn-chart-bar-note{color:var(--text-soft);margin:8px 0 0;font-size:.88rem;line-height:1.55}.wn-chart-source{border-top:1px solid var(--line-soft);font-family:var(--mono);color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-top:22px;padding-top:16px;font-size:.74rem}.wn-timeline{margin:0;padding:0;list-style:none;position:relative}.wn-timeline:before{content:"";background:var(--line);width:2px;position:absolute;top:6px;bottom:6px;left:14px}.wn-timeline-item{padding:0 0 28px 56px;display:block;position:relative}.wn-timeline-item:last-child{padding-bottom:0}.wn-timeline-dot{background:var(--surface);border:2px solid var(--primary);z-index:2;border-radius:50%;width:18px;height:18px;position:absolute;top:4px;left:6px}.wn-timeline-dot:after{content:"";background:var(--primary);border-radius:50%;position:absolute;inset:4px}.wn-timeline-item:last-child .wn-timeline-dot{border-color:var(--accent)}.wn-timeline-item:last-child .wn-timeline-dot:after{background:var(--accent);animation:1.8s ease-in-out infinite wn-pulse}.wn-timeline-year{font-family:var(--mono);letter-spacing:.06em;color:var(--primary);background:var(--primary-faint);border-radius:999px;margin-bottom:8px;padding:3px 10px;font-size:.78rem;font-weight:600;display:inline-block}.wn-timeline-item h4{font-family:var(--serif);letter-spacing:-.01em;color:var(--text);margin:0 0 6px;font-size:1.12rem;font-weight:700}.wn-timeline-item p{color:var(--text-soft);margin:0;font-size:.94rem;line-height:1.6}.wn-alert{border-radius:var(--r);background:var(--accent-faint);border:1px solid var(--accent-soft);border-left:3px solid var(--accent);color:var(--text);align-items:flex-start;gap:14px;margin-top:24px;padding:18px 22px;display:flex}.wn-alert svg{color:var(--accent-deep);flex-shrink:0;margin-top:2px}.wn-alert p{margin:0;font-size:.96rem;line-height:1.6}.wn-alert strong{color:var(--accent-deep);font-weight:600}.wn-symptoms{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.wn-symptom{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);flex-direction:column;gap:10px;padding:24px 22px;transition:transform .2s,border-color .2s,box-shadow .2s;display:flex;position:relative}.wn-symptom:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);transform:translateY(-3px)}.wn-symptom.severe{border-left:3px solid 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