@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,500&display=swap";:root{--bg-primary: #ffffff;--bg-secondary: radial-gradient(circle at center, #ffffff 0%, #f1f5f9 100%);--bg-dark: #1B2230;--bg-warm: #fff8f3;--bg-engineer: #1B2230;--accent-main: #fc670c;--accent-dark: #e55a00;--accent-gradient: linear-gradient(135deg, #fc670c 0%, #ff8e42 100%);--accent-soft: rgba(252, 103, 12, .08);--accent-secondary: #1e3a5f;--accent-secondary-soft: rgba(30, 58, 95, .06);--text-main: #1e293b;--text-dim: #2D2D2D;--border: #e2e8f0;--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .4);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-premium: 0 25px 60px -12px 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rgba(0,0,0,.06);max-width:280px;cursor:pointer;opacity:0;transform:translateY(10px);transition:opacity .4s ease,transform .4s ease}#chat-notification.visible{opacity:1;transform:translateY(0)}#chat-notification:hover{box-shadow:0 8px 30px #0000002e}@media(max-width:480px){#chat-widget{bottom:16px;right:16px}#chat-toggle{width:54px;height:54px}#chat-window{width:calc(100vw - 32px);right:-8px;bottom:68px;max-height:70vh}#chat-notification{right:-8px;max-width:calc(100vw - 90px)}}.faq-item.open>div:last-child{max-height:300px!important;padding-top:0}@media(max-width:640px){.article-toc{padding:20px!important}}