:root{--color-bg: #ffffff;--color-bg-subtle: #f8fafc;--color-bg-muted: #f1f5f9;--color-text: #0f172a;--color-text-secondary: #475569;--color-text-muted: #94a3b8;--color-border: #e2e8f0;--color-border-light: #f1f5f9;--color-accent: #3b82f6;--color-accent-dark: #2563eb;--color-indigo: #6366f1;--gradient-brand: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);--gradient-soft: linear-gradient(180deg, rgba(59, 130, 246, .06) 0%, rgba(99, 102, 241, .03) 100%);--gradient-hero: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(59, 130, 246, .12), transparent), radial-gradient(ellipse 60% 40% at 80% 0%, rgba(99, 102, 241, .08), transparent);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 24px rgba(15, 23, 42, .06);--shadow-lg: 0 12px 48px rgba(15, 23, 42, .08);--shadow-card: 0 1px 3px rgba(15, 23, 42, .04), 0 8px 32px rgba(15, 23, 42, .06);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--font-sans: "Inter", ui-sans-serif, system-ui, 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var(--transition)}.card:hover{border-color:#3b82f633;box-shadow:var(--shadow-card);transform:translateY(-2px)}.card-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--gradient-soft);border-radius:var(--radius-md);margin-bottom:20px;font-size:24px}.card-title{font-size:20px;font-weight:700;letter-spacing:-.02em;margin-bottom:12px}.card-desc{font-size:15px;line-height:1.65;color:var(--color-text-secondary)}.card-grid{display:grid;gap:24px}@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.card-grid-3{grid-template-columns:repeat(3,1fr)}.card-grid-4{grid-template-columns:repeat(4,1fr)}}.section{padding:100px 0}.section-alt{background:var(--color-bg-subtle)}.section-gradient{background:var(--gradient-soft)}.feature-row{display:grid;gap:64px;align-items:center}@media(min-width:1024px){.feature-row{grid-template-columns:1fr 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var(--color-border)}.logo-showcase img{width:120px;height:120px;object-fit:contain}.fade-in{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}.fade-in.visible{opacity:1;transform:translateY(0)}.toast{position:fixed;bottom:24px;right:24px;padding:16px 24px;background:var(--color-text);color:#fff;border-radius:var(--radius-md);font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);transform:translateY(100px);opacity:0;transition:all .3s ease;z-index:9999}.toast.show{transform:translateY(0);opacity:1}.arch-diagram{display:flex;flex-direction:column;gap:16px;width:100%}.arch-layer{padding:16px 24px;background:#ffffffe6;border:1px solid var(--color-border);border-radius:var(--radius-md);text-align:center;font-size:13px;font-weight:600;color:var(--color-text-secondary)}.arch-layer.highlight{background:var(--gradient-brand);color:#fff;border-color:transparent}.arch-connector{text-align:center;color:var(--color-text-muted);font-size:18px}.timeline{position:relative;padding-left:32px}.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--color-border)}.timeline-item{position:relative;margin-bottom:32px}.timeline-item:before{content:"";position:absolute;left:-29px;top:6px;width:12px;height:12px;background:var(--color-accent);border-radius:50%;border:3px solid var(--color-bg);box-shadow:0 0 0 2px var(--color-accent)}.timeline-year{font-size:13px;font-weight:600;color:var(--color-accent);margin-bottom:4px}.timeline-title{font-size:18px;font-weight:700;margin-bottom:8px}.timeline-desc{font-size:14px;color:var(--color-text-secondary)}