@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap";:root{--card-bg:#ffffff8c;--card-border:#0000000f;--text-primary:#0f172a;--text-secondary:#475569;--accent-color:#2563eb;--accent-light:#2563eb1a;--input-bg:#ffffffd9;--input-border:#00000014;--result-bg:#ffffff73;--tab-bg:#00000008;--tab-active-bg:#fffffff2;--tab-active-color:#2563eb;--success-color:#059669;--warning-color:#d97706;--danger-color:#dc2626;--header-gradient:linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);--card-shadow:0 8px 32px #0000000f, 0 0 0 1px var(--card-border)}@media (prefers-color-scheme:dark){:root{--card-bg:#1e293b99;--card-border:#ffffff0f;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--accent-color:#60a5fa;--accent-light:#60a5fa26;--input-bg:#0f172ab3;--input-border:#ffffff0f;--result-bg:#0f172a66;--tab-bg:#ffffff0a;--tab-active-bg:#1e293bf2;--tab-active-color:#60a5fa;--header-gradient:linear-gradient(135deg, #60a5fa 0%, #c084fc 100%);--card-shadow:0 8px 32px #0000004d, 0 0 0 1px var(--card-border)}}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;min-height:100%}body{color:var(--text-primary);-webkit-font-smoothing:antialiased;background:linear-gradient(160deg,#fff 0%,#e8ecf0 100%);justify-content:center;align-items:center;min-height:100vh;padding:40px 20px;font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,sans-serif;display:flex}@media (prefers-color-scheme:dark){body{background:linear-gradient(160deg,#0f172a 0%,#1e293b 100%)}}.app-container{z-index:1;background-color:var(--card-bg);-webkit-backdrop-filter:blur(32px)saturate(180%);border:1px solid var(--card-border);width:100%;max-width:1120px;box-shadow:var(--card-shadow);border-radius:20px;margin:0 auto;padding:36px 40px;animation:.6s cubic-bezier(.16,1,.3,1) forwards slideUp;position:relative}@keyframes 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(width<=640px){body{align-items:flex-start;padding:14px 12px 18px}.app-container{box-shadow:0 8px 24px #0f172a14, 0 0 0 1px var(--card-border);background-color:#ffffffb8;border-radius:18px;padding:22px 16px}.header{margin-bottom:24px}.header-brand{gap:12px}.brand-logo{width:48px;height:48px}.brand-company{font-size:22px}.header-sub{font-size:12px;line-height:1.45}.tabs{margin-bottom:22px}.topology-section{border-radius:16px;margin-bottom:22px;padding:16px 14px}.topology-title{font-size:16px}.topology-note{font-size:12px}.topology-node-icon{border-radius:10px;width:30px;height:30px;font-size:14px}.topology-node-summary{font-size:10px}.tab-btn{padding:11px 12px;font-size:13px}.calc-layout{gap:16px}.form-group{margin-bottom:16px}.binding-card{margin-bottom:16px;padding:12px}.binding-card-head{flex-direction:column;align-items:flex-start}.form-group label{margin-bottom:8px;font-size:13px}input[type=number],select{border-radius:14px;padding:13px 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(prefers-color-scheme:dark){.topology-section{background:linear-gradient(#0f172ab8,#0f172a7a),linear-gradient(135deg,#60a5fa1a,#c084fc0f)}.topology-toggle-btn{color:var(--text-primary);background:#0f172a7a;border-color:#ffffff14}.topology-toggle-btn:hover{color:#93c5fd;border-color:#60a5fa59}.binding-card{background:#0f172a80;border-color:#ffffff14}.binding-toggle,.binding-input label{color:var(--text-primary)}select{color:#f8fafc;background-color:#0f172ac7}.topology-node{background:#0f172aad}.topology-node-icon{color:#93c5fd;background:#60a5fa1f}.topology-summary-neutral{color:#bfdbfe}.formula-card,.history-panel{background:#0f172a8a}.formula-list li,.history-item{background:#0f172a8f;border-color:#ffffff0f}.action-btn,.history-clear{color:var(--text-primary);background:#0f172a66}.app-footer{color:var(--text-secondary);border-top-color:#ffffff14}.topology-node-primary{background:linear-gradient(#60a5fa2e,#0f172ab8)}.topology-node-accent{background:linear-gradient(#10b98129,#0f172ab8)}.topology-link-line{box-shadow:0 0 0 1px #60a5fa1a}}