:root{--npf-brand:#1b4dee;--npf-brand-dark:#0f3ad9;--npf-brand-light:#4a73f2;--npf-brand-bg:#eef2ff;--npf-brand-bg-hover:#e0e7ff;--npf-bg:#fff;--npf-bg-alt:#f5f7fa;--npf-bg-card:#fff;--npf-text:#0f172a;--npf-text-secondary:#475569;--npf-text-muted:#64748b;--npf-text-light:#94a3b8;--npf-border:#e2e8f0;--npf-border-light:#f1f5f9;--npf-dark-bg:#0b1120;--npf-dark-bg-alt:#111827;--npf-dark-card:#1e293b;--npf-dark-text:#f1f5f9;--npf-dark-text-secondary:#cbd5e1;--npf-dark-text-muted:#94a3b8;--npf-dark-border:#334155;--npf-green:#10b981;--npf-amber:#f59e0b;--npf-purple:#7c3aed;--npf-red:#ef4444;--npf-shadow-sm:0 1px 3px rgba(0,0,0,.06);--npf-shadow:0 2px 12px rgba(0,0,0,.08);--npf-shadow-lg:0 8px 32px rgba(0,0,0,.1);--npf-shadow-brand:0 4px 20px rgba(27,77,238,.15);--npf-radius:8px;--npf-radius-lg:12px;--npf-radius-xl:16px}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:80px}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}button{cursor:pointer;font-family:inherit}ul{list-style:none}.npf-header{position:fixed;top:0;left:0;right:0;height:64px;z-index:100;background:hsla(0,0%,100%,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--npf-border);justify-content:space-between;padding:0 48px}.npf-header,.npf-header-logo{display:flex;align-items:center}.npf-header-logo{gap:10px}.npf-header-logo img{height:64px;width:auto}.npf-header-brand{display:flex;align-items:center;font-size:16px;font-weight:700;color:var(--npf-text);letter-spacing:.3px;white-space:nowrap}.npf-header-nav{display:flex;gap:8px;align-items:center}.npf-header-nav-item{position:relative}.npf-header-nav-link{font-size:14px;color:var(--npf-text-secondary);transition:color .2s;font-weight:500;display:flex;align-items:center;gap:4px;padding:8px 14px;border-radius:6px;white-space:nowrap}.npf-header-nav-link:hover{color:var(--npf-brand);background:var(--npf-brand-bg)}.npf-header-nav-arrow{transition:transform .2s}.npf-header-nav-item:hover .npf-header-nav-arrow{transform:rotate(180deg)}.npf-header-btn{background:var(--npf-brand);color:#fff;padding:8px 20px;border:none;border-radius:6px;font-size:14px;font-weight:600;transition:all .2s}.npf-header-btn:hover{background:var(--npf-brand-dark);transform:translateY(-1px)}.npf-header-dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);padding-top:8px;z-index:200;animation:npf-dropdown-in .2s ease-out}@keyframes npf-dropdown-in{0%{opacity:0;transform:translateX(-50%) translateY(-4px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}.npf-header-dropdown-inner{background:#fff;border:1px solid var(--npf-border);border-radius:12px;box-shadow:var(--npf-shadow-lg);padding:8px;min-width:220px;max-width:320px}.npf-header-dropdown-item{display:flex;flex-direction:column;gap:2px;padding:12px 16px;border-radius:8px;transition:background .15s;cursor:pointer}.npf-header-dropdown-item:hover{background:var(--npf-brand-bg)}.npf-header-dropdown-item-label{font-size:14px;font-weight:600;color:var(--npf-text)}.npf-header-dropdown-item-desc{font-size:12px;color:var(--npf-text-muted);line-height:1.4}.npf-header-dropdown-item:hover .npf-header-dropdown-item-label{color:var(--npf-brand)}.npf-hero{min-height:90vh;align-items:stretch;padding:100px 48px 60px;background:var(--npf-bg);overflow:hidden;gap:48px}.npf-hero,.npf-hero-content{display:flex;justify-content:center}.npf-hero-content{flex:1 1;min-width:0;max-width:560px;flex-direction:column;align-items:flex-start}.npf-hero-badge{display:inline-flex;align-items:center;gap:6px;background:var(--npf-brand-bg);border:1px solid rgba(27,77,238,.2);padding:6px 14px;border-radius:20px;font-size:12px;color:var(--npf-brand);font-weight:600;margin-bottom:24px}.npf-hero-badge-dot{width:6px;height:6px;background:var(--npf-brand);border-radius:50%}.npf-hero-title{font-size:48px;font-weight:800;color:var(--npf-text);line-height:1.12;letter-spacing:-.02em}.npf-hero-title-accent{color:var(--npf-brand)}.npf-hero-desc{margin-top:24px;font-size:17px;color:var(--npf-text-secondary);line-height:1.7;max-width:520px}.npf-hero-tags{margin-top:16px;font-size:13px;color:var(--npf-text-muted);letter-spacing:2px;font-family:SF Mono,Menlo,Consolas,monospace}.npf-hero-btns{display:flex;gap:16px;margin-top:32px}.npf-hero-btn-primary{background:var(--npf-brand);color:#fff;padding:13px 28px;border:none;border-radius:8px;font-size:15px;font-weight:600;transition:all .2s;box-shadow:var(--npf-shadow-brand)}.npf-hero-btn-primary:hover{background:var(--npf-brand-dark);transform:translateY(-1px);box-shadow:0 6px 24px rgba(27,77,238,.25)}.npf-hero-btn-secondary{background:transparent;border:1px solid var(--npf-border);padding:13px 28px;border-radius:8px;font-size:15px;color:var(--npf-text);font-weight:600;transition:all .2s;text-decoration:none;display:inline-flex;align-items:center}.npf-hero-btn-secondary:hover{border-color:var(--npf-brand);color:var(--npf-brand)}.npf-hero-trust{margin-top:28px;font-size:12px;color:var(--npf-text-muted)}.npf-hero-stats{display:flex;gap:40px;margin-top:40px;padding-top:32px;border-top:1px solid var(--npf-border)}.npf-hero-stat-num{font-size:32px;font-weight:800;color:var(--npf-brand)}.npf-hero-stat-label{font-size:13px;color:var(--npf-text-muted);margin-top:4px}.npf-hero-visual{flex:1 1;min-width:0;position:relative;z-index:2;display:flex;align-items:center;justify-content:center}.npf-hero-particles{position:absolute;top:0;left:0;right:0;bottom:0;width:100%;height:100%;opacity:.3;pointer-events:none}.npf-hero-data-panel{position:relative;z-index:3;background:var(--npf-dark-bg);border:1px solid rgba(27,77,238,.3);border-radius:12px;box-shadow:var(--npf-shadow-lg),0 0 40px rgba(27,77,238,.08);width:100%;max-width:900px;display:flex;flex-direction:column;overflow:hidden;height:100%}.npf-hero-chrome-bar{display:flex;align-items:center;gap:8px;padding:10px 16px;background:var(--npf-dark-bg-alt);border-bottom:1px solid hsla(0,0%,100%,.06)}.npf-chrome-dots{display:flex;gap:6px}.npf-chrome-dot{width:11px;height:11px;border-radius:50%}.npf-chrome-dot-red{background:#ff5f57}.npf-chrome-dot-yellow{background:#febc2e}.npf-chrome-dot-green{background:#28c840}.npf-chrome-title{font-size:12px;font-weight:500;color:var(--npf-dark-text-muted);margin-left:8px;font-family:SF Mono,Menlo,Consolas,monospace}.npf-hero-data-panel-inner{display:flex;flex-direction:row;flex:1 1;min-height:0}.npf-data-panel-left{flex:0 0 320px;min-width:0;display:flex;flex-direction:column;padding:16px;border-right:1px solid rgba(27,77,238,.1);background:radial-gradient(circle at center,rgba(27,77,238,.05) 0,transparent 70%)}.npf-data-panel-graph{flex:1 1;min-height:0;display:flex;align-items:center;justify-content:center}.npf-data-graph{width:100%;height:auto;max-width:440px}.npf-data-panel-right{flex:1 1;min-width:0;display:flex;flex-direction:column;padding:16px 18px 18px;gap:12px}.npf-data-panel-header{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}.npf-data-panel-title-wrap{flex:1 1;min-width:0}.npf-data-panel-tag{font-size:11px;font-weight:600;color:#60a5fa;letter-spacing:1.5px;font-family:SF Mono,Menlo,Consolas,monospace}.npf-data-panel-title{font-size:18px;font-weight:700;color:#f1f5f9;margin-top:3px;letter-spacing:.5px}.npf-data-running-badge{display:flex;align-items:center;gap:5px;background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.25);border-radius:16px;padding:5px 14px;white-space:nowrap;align-self:flex-start;margin-top:10px}.npf-data-running-text{font-size:11px;font-weight:600;color:#34d399}.npf-data-running-en{font-size:10px;font-weight:500;color:#6ee7b7;font-family:SF Mono,Menlo,Consolas,monospace;letter-spacing:.5px}.npf-data-pulse-dot{width:7px;height:7px;border-radius:50%;background:#10b981;animation:npf-pulse-dot 1.5s ease-in-out infinite}@keyframes npf-pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}.npf-data-right-body{flex:1 1;min-width:0;display:flex;flex-direction:column;gap:10px}.npf-data-stats-row{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:7px;gap:7px}.npf-data-stats-row-second{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:7px;gap:7px}.npf-data-stat-mini{display:flex;align-items:center;gap:6px;background:rgba(30,41,59,.6);border:1px solid rgba(27,77,238,.1);border-radius:8px;padding:8px 10px}.npf-data-stat-mini-icon{width:24px;height:24px;border-radius:6px;background:rgba(27,77,238,.12);display:flex;align-items:center;justify-content:center;font-size:10px;color:#60a5fa}.npf-data-stat-mini-main{flex:1 1}.npf-data-stat-mini-value{font-size:18px;font-weight:700;color:#f1f5f9}.npf-data-stat-mini-label{font-size:11px;color:#94a3b8}.npf-data-right-middle{display:flex;gap:14px;align-items:stretch;flex:1 1;min-width:0}.npf-data-section-title{font-size:11px;font-weight:600;color:#64748b;letter-spacing:1px;margin-bottom:7px;font-family:SF Mono,Menlo,Consolas,monospace}.npf-data-domains{flex:1 1;min-width:0;display:flex;flex-direction:column;gap:6px}.npf-data-domain{display:flex;align-items:center;gap:7px;font-size:13px;color:#cbd5e1}.npf-data-domain-dot{width:8px;height:8px;border-radius:50%}.npf-data-domain-name{font-weight:500}.npf-data-domain-cn{font-size:11px;color:#64748b}.npf-data-relationships{flex:1 1;min-width:0;display:flex;flex-direction:column;gap:6px}.npf-data-relationship{display:flex;align-items:center;gap:7px;font-size:11px;color:#94a3b8}.npf-data-rel-line{width:16px;height:1px;background:rgba(96,165,250,.5)}.npf-data-below-cards{display:grid;grid-template-columns:1fr 1fr;grid-gap:8px;gap:8px}.npf-data-card{background:rgba(30,41,59,.5);border:1px solid rgba(27,77,238,.1);border-radius:8px;padding:10px 12px;transition:background .2s;display:flex;flex-direction:column}.npf-data-card:hover{background:rgba(27,77,238,.08)}.npf-data-card-icon{width:22px;height:22px;border-radius:5px;background:rgba(27,77,238,.12);display:flex;align-items:center;justify-content:center;font-size:10px;color:#60a5fa;margin-bottom:5px}.npf-data-card-title{font-size:13px;font-weight:600;color:#f1f5f9;margin-bottom:3px}.npf-data-card-desc{font-size:10px;color:#64748b;line-height:1.4}@media (max-width:1200px){.npf-hero{flex-direction:column;align-items:center;padding:100px 32px 60px;gap:32px}.npf-hero-data-panel{max-width:100%;height:auto}.npf-hero-data-panel,.npf-hero-data-panel-inner{flex-direction:column}.npf-data-panel-left{flex:0 0 auto;border-right:none;border-bottom:1px solid rgba(27,77,238,.1)}}@media (max-width:640px){.npf-data-right-middle{flex-direction:column}.npf-data-below-cards{grid-template-columns:1fr}.npf-data-stats-row{grid-template-columns:repeat(2,1fr)}}.npf-section{padding:56px 80px}.npf-section-dark{background:var(--npf-dark-bg);color:#fff}.npf-section-light{background:var(--npf-bg-alt)}.npf-section-white{background:#fff}.npf-section-title{font-size:36px;font-weight:800;color:var(--npf-text);letter-spacing:-.01em}.npf-section-title-dark{color:#fff}.npf-section-desc{margin-top:12px;color:var(--npf-text-secondary);max-width:700px;font-size:16px;line-height:1.7}.npf-section-desc-dark{color:#94a3b8}.npf-section-label{font-size:13px;color:var(--npf-brand);font-weight:700;letter-spacing:2px;margin-bottom:8px;display:flex;align-items:center;gap:8px}.npf-section-label:before{content:"";display:inline-block;width:24px;height:2px;background:var(--npf-brand);border-radius:1px}.npf-global-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:24px;gap:24px;margin-top:48px}.npf-global-card{background:var(--npf-dark-bg);border:1px solid hsla(0,0%,100%,.08);border-radius:12px;padding:32px 28px;transition:all .3s;text-decoration:none;color:inherit;display:block}.npf-global-card:hover{border-color:var(--npf-brand);transform:translateY(-4px);box-shadow:0 12px 40px rgba(27,77,238,.3)}.npf-global-card-num{font-size:12px;color:#60a5fa!important;font-weight:800;font-family:SF Mono,Menlo,Consolas,monospace;margin-bottom:16px;letter-spacing:1px}.npf-global-card-title{font-size:20px;font-weight:700;color:#fff!important;margin-bottom:8px}.npf-global-card-text{font-size:14px;color:#94a3b8!important;line-height:1.7}.npf-global-card-link{margin-top:16px;font-size:13px;font-weight:600;color:#60a5fa;display:flex;align-items:center;gap:6px;transition:gap .2s}.npf-global-card:hover .npf-global-card-link{gap:10px}.npf-global-card-icon{width:44px;height:44px;background:rgba(27,77,238,.15);border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:22px}.npf-os-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:24px;gap:24px;margin-top:48px}.npf-os-card{background:#fff;border-radius:12px;padding:32px 28px;transition:all .3s;border:1px solid var(--npf-border)}.npf-os-card:hover{border-color:var(--npf-brand);box-shadow:var(--npf-shadow)}.npf-os-card-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.npf-os-card-icon{width:36px;height:36px;background:var(--npf-brand-bg);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}.npf-os-card-name{font-size:20px;font-weight:700;color:var(--npf-text)}.npf-os-card-desc{font-size:14px;color:var(--npf-text-secondary);line-height:1.7}.npf-os-card-features{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.npf-os-card-feat{background:var(--npf-brand-bg);border:1px solid rgba(27,77,238,.15);padding:4px 12px;border-radius:6px;font-size:12px;color:var(--npf-brand);font-weight:500}.npf-industry-tabs{display:flex;gap:8px;margin-top:32px;flex-wrap:wrap}.npf-industry-tab{padding:8px 20px;border-radius:6px;font-size:14px;color:var(--npf-text-secondary);background:#fff;border:1px solid var(--npf-border);font-weight:500;transition:all .2s}.npf-industry-tab-active{background:var(--npf-brand);color:#fff;border-color:var(--npf-brand)}.npf-industry-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:20px;gap:20px;margin-top:32px}.npf-industry-item{background:#fff;border:1px solid var(--npf-border);border-radius:10px;padding:24px 20px;transition:all .2s}.npf-industry-item:hover{box-shadow:var(--npf-shadow);transform:translateY(-2px)}.npf-industry-item-icon{font-size:28px;margin-bottom:12px}.npf-industry-item-name{font-size:16px;font-weight:700;color:var(--npf-text)}.npf-industry-item-desc{font-size:13px;color:var(--npf-text-muted);margin-top:6px;line-height:1.5}.npf-industry-item-arrow{margin-top:14px;font-size:13px;font-weight:600;color:var(--npf-brand);display:flex;align-items:center;gap:4px;opacity:0;transform:translateX(-8px);transition:all .2s}.npf-industry-item:hover .npf-industry-item-arrow{opacity:1;transform:translateX(0)}.npf-cases-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:24px;gap:24px;margin-top:48px}.npf-case-card{background:#fff;border:1px solid var(--npf-border);border-radius:12px;overflow:hidden;transition:all .3s;display:flex;flex-direction:column}.npf-case-card:hover{border-color:var(--npf-brand);transform:translateY(-2px);box-shadow:var(--npf-shadow-lg)}.npf-case-body{padding:28px 24px;flex:1 1;display:flex;flex-direction:column}.npf-case-tag{font-size:12px;padding:4px 12px;align-self:flex-start}.npf-case-puzzle,.npf-case-tag{display:inline-block;font-weight:600;border-radius:4px;margin-bottom:16px}.npf-case-puzzle{font-size:11px;padding:3px 10px;border:1px solid;margin-left:8px;white-space:nowrap}.npf-case-title{font-size:18px;font-weight:700;color:var(--npf-text);margin-bottom:16px}.npf-case-block{margin-bottom:12px}.npf-case-block-solution{margin-bottom:0}.npf-case-block-label{font-size:12px;font-weight:700;color:var(--npf-text-light);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}.npf-case-block-text{font-size:13px;color:var(--npf-text-secondary);line-height:1.6}.npf-case-featured{margin-top:auto;display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;padding:4px 12px;border-radius:4px;margin-bottom:16px}.npf-case-results{display:flex;gap:0;border-top:1px solid var(--npf-border-light);padding-top:20px}.npf-case-result{flex:1 1}.npf-case-result-0{text-align:left}.npf-case-result-1{text-align:center}.npf-case-result-2{text-align:right}.npf-case-result-value{font-size:28px;font-weight:800;line-height:1}.npf-case-result-label{font-size:11px;color:var(--npf-text-muted);margin-top:6px}.npf-stats-bar{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:0;gap:0;margin-top:48px;background:var(--npf-brand);border-radius:12px;padding:36px 48px}.npf-stats-bar-item{text-align:center;position:relative}.npf-stats-bar-item:not(:last-child):after{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:40px;background:hsla(0,0%,100%,.2)}.npf-stats-bar-value{font-size:40px;font-weight:800;color:#fff;line-height:1}.npf-stats-bar-label{font-size:14px;color:hsla(0,0%,100%,.8);margin-top:8px}.npf-contact-form{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;margin-top:32px;max-width:600px}.npf-contact-input{padding:12px 16px;border:1px solid var(--npf-dark-border);background:var(--npf-dark-bg);border-radius:8px;font-size:14px;color:#fff}.npf-contact-input:focus{border-color:var(--npf-brand-light);outline:none}.npf-contact-btn,.npf-contact-input-full{grid-column:span 2}.npf-contact-btn{background:var(--npf-brand);color:#fff;padding:14px;border:none;border-radius:8px;font-size:16px;font-weight:600;transition:background .2s}.npf-contact-btn:hover{background:var(--npf-brand-dark)}.npf-scenarios{padding:80px;background:var(--npf-dark-bg);position:relative;overflow:hidden}.npf-scenarios:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse at 20% 20%,rgba(27,77,238,.08) 0,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(99,102,241,.05) 0,transparent 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