:root{--bg:#f4f6fb;--panel:#fff;--ink:#172033;--muted:#667085;--line:#dbe1ea;--accent:#5b5ee8;--accent2:#16a3a5;--danger:#dc3545;--shadow:0 12px 32px rgba(24,34,56,.10);--radius:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}a{color:#494dd1;text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1440px,calc(100% - 32px));margin:auto}.skip-link{position:absolute;left:-9999px;top:8px;background:#111;color:#fff;padding:8px 12px;z-index:999}.skip-link:focus{left:8px}.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{height:62px;display:flex;align-items:center;gap:24px;width:min(1440px,calc(100% - 32px));margin:auto}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px}.brand:hover{text-decoration:none}.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--accent),#8b5cf6)}.main-nav{display:flex;gap:18px;margin-left:auto}.main-nav a{color:#475467;font-weight:650}.lang-switch{padding:7px 10px;border:1px solid var(--line);border-radius:9px;font-weight:700}.breadcrumbs{padding:14px 0 8px;color:var(--muted);font-size:14px}.hero{padding:26px 0 18px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.7fr);gap:24px;align-items:stretch}.hero h1{font-size:clamp(31px,4vw,54px);line-height:1.05;margin:.25rem 0 1rem;letter-spacing:-.035em}.hero p{font-size:18px;color:#536075;max-width:760px}.eyebrow{font-size:12px;letter-spacing:.16em;font-weight:800;color:var(--accent)}.hero-card{background:linear-gradient(135deg,#20264b,#5b5ee8);color:#fff;border-radius:18px;padding:22px;box-shadow:var(--shadow)}.hero-card ul{padding-left:20px}.privacy-note{display:flex;gap:10px;align-items:center;border:1px solid #bde7df;background:#edfbf8;border-radius:12px;padding:11px 14px;color:#17665c;margin-bottom:14px}.mobile-tabs{display:none;gap:6px;padding:0 16px 8px}.btn,.tool-btn,.icon-btn,.shape-btn{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:9px;padding:8px 11px;transition:.15s}.btn:hover,.tool-btn:hover,.icon-btn:hover,.shape-btn:hover{border-color:#a9b1c2;background:#f8f9fc}.btn.active,.tool-btn.active,.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-dark{background:#1f2937;color:#fff;border-color:#1f2937}.btn-danger{background:#fff5f5;color:#b42318;border-color:#f5c2c7}.btn.full{width:100%;margin-top:7px}.icon-btn{width:34px;height:34px;padding:0;display:grid;place-items:center;font-size:18px}.editor-shell{display:grid;grid-template-columns:245px minmax(0,1fr) 285px;grid-template-rows:minmax(620px,calc(100vh - 165px)) 220px;gap:10px;width:min(1700px,calc(100% - 20px));margin:0 auto 16px}.editor-panel,.canvas-panel,.text-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 4px 16px rgba(24,34,56,.055);overflow:hidden}.left-panel{grid-column:1;grid-row:1}.canvas-panel{grid-column:2;grid-row:1;display:flex;flex-direction:column;min-width:0}.right-panel{grid-column:3;grid-row:1}.text-panel{grid-column:1/4;grid-row:2;padding:12px}.panel-title{height:52px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.panel-title.compact{height:auto;padding:3px 0 9px}.panel-title h2,.panel-title h3{font-size:15px;margin:0}.panel-section{padding:12px;border-top:1px solid var(--line)}.panel-section label,.inspector label{display:block;font-size:12px;color:var(--muted);font-weight:700;margin-bottom:9px}.panel-section input,.panel-section select,.inspector input,.inspector select,.inspector textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:8px;background:#fff;color:var(--ink)}.shape-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:10px}.shape-btn{min-height:58px;padding:7px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}.shape-btn b{font-size:22px;line-height:1}.shape-btn span{font-size:10px;color:#596579}.pages-list{display:grid;gap:6px}.page-item{display:flex;align-items:center;gap:6px;padding:7px 8px;border:1px solid var(--line);border-radius:8px}.page-item.active{border-color:var(--accent);background:#f1f1ff}.page-item button{margin-left:auto;border:0;background:transparent}.toolbar{min-height:50px;padding:7px 9px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:6px;overflow-x:auto}.tool-btn{white-space:nowrap}.separator{height:24px;width:1px;background:var(--line)}.spacer{flex:1}.zoom-control{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted);white-space:nowrap}.zoom-control input{width:100px}.canvas-viewport{flex:1;overflow:auto;background:#dfe4ed;position:relative}.canvas-stage{width:1600px;height:1000px;margin:24px;background:white;box-shadow:0 12px 36px rgba(30,40,60,.16);transform-origin:top left}.canvas-stage svg{display:block;width:100%;height:100%;touch-action:none;user-select:none}.diagram-node{cursor:move}.diagram-node.selected .node-outline{stroke:var(--accent)!important;stroke-width:3!important}.node-label{pointer-events:none;dominant-baseline:middle;text-anchor:middle;fill:#182230}.connection-path{fill:none;stroke:#4b5563;stroke-width:2;marker-end:url(#arrow)}.connection-label{font-size:13px;fill:#344054;text-anchor:middle;paint-order:stroke;stroke:#fff;stroke-width:5;stroke-linejoin:round}.selection-box{fill:none;stroke:var(--accent);stroke-width:2;stroke-dasharray:6 4;pointer-events:none}.resize-handle{fill:#fff;stroke:var(--accent);stroke-width:2;cursor:nwse-resize}.port{fill:#fff;stroke:var(--accent);stroke-width:2;cursor:crosshair}.statusbar{height:30px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 10px;color:var(--muted);font-size:12px}.right-panel{overflow:auto}.empty-state{padding:22px;color:var(--muted);text-align:center}.inspector{padding:12px}.hidden{display:none!important}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.button-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.export-section h3{margin:0 0 8px}.text-panel textarea{width:100%;height:125px;border:1px solid var(--line);border-radius:9px;padding:11px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;resize:vertical}.parser-message{font-size:12px;color:var(--muted);margin-top:4px}.drawer{display:none;position:fixed;inset:0;background:rgba(17,24,39,.5);z-index:120;padding:5vh 16px}.drawer.open{display:grid;place-items:center}.drawer-card{width:min(720px,100%);max-height:90vh;background:#fff;border-radius:16px;box-shadow:var(--shadow);overflow:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}.drawer-head h2{margin:0;font-size:18px}.drawer-body{padding:18px}.saved-project{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}.score-wrap{display:flex;align-items:center;gap:18px}.score-ring{width:88px;height:88px;border-radius:50%;display:grid;place-items:center;border:9px solid #b9c0ff;background:#f4f4ff}.score-ring strong{font-size:26px}.check-item{padding:10px 12px;border-radius:9px;margin:7px 0}.check-item.error{background:#fff0f0;color:#9c1c1c}.check-item.warn{background:#fff8e7;color:#8a5a00}.check-item.ok{background:#ecfbf4;color:#176c45}.toast{position:fixed;right:18px;bottom:18px;z-index:150;background:#111827;color:#fff;border-radius:10px;padding:11px 14px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}.ad-slot{min-height:110px;width:min(1100px,calc(100% - 32px));margin:22px auto;border:1px dashed #b8c0cd;border-radius:12px;display:grid;place-items:center;color:#98a2b3;background:#fafafa}.content-section{width:min(1120px,calc(100% - 32px));margin:32px auto;background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px}.content-section h2{font-size:26px;margin-top:0}.content-section h3{margin-bottom:.3rem}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card{border:1px solid var(--line);border-radius:12px;padding:16px;background:#fbfcfe}.faq details{border-top:1px solid var(--line);padding:12px 0}.faq summary{font-weight:750;cursor:pointer}.site-footer{background:#111827;color:#d0d5dd;padding:36px 0;margin-top:48px}.site-footer h2{color:#fff}.project-links{display:flex;flex-wrap:wrap;gap:8px}.project-links a{color:#dbe0ff;border:1px solid #35405a;border-radius:999px;padding:6px 10px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px}.guide-article{width:min(880px,calc(100% - 32px));margin:0 auto}.guide-article p,.guide-article li{font-size:17px;color:#3f4b5f}.guide-article h2{margin-top:2rem}.legal{width:min(900px,calc(100% - 32px));margin:auto}.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
@media(max-width:1080px){.editor-shell{grid-template-columns:210px minmax(0,1fr);grid-template-rows:640px 480px 220px}.right-panel{grid-column:1/3;grid-row:2}.text-panel{grid-column:1/3;grid-row:3}.right-panel .inspector{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.hero-grid{grid-template-columns:1fr}.cards,.guide-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.main-nav{display:none}.header-inner{height:56px}.container{width:min(100% - 20px,1440px)}.hero{padding-top:14px}.hero h1{font-size:32px}.hero-card{display:none}.mobile-tabs{display:flex;overflow-x:auto}.editor-shell{display:block;width:calc(100% - 12px);margin:auto}.mobile-pane{display:none!important}.mobile-pane.active{display:flex!important}.left-panel.active,.right-panel.active{display:block!important;min-height:640px}.text-panel.active{display:block!important;min-height:300px}.canvas-panel{height:690px}.canvas-stage{margin:12px}.right-panel .inspector{display:block}.cards,.guide-grid{grid-template-columns:1fr}.content-section{padding:18px}.toolbar{position:relative}.zoom-control{display:none}.shape-grid{grid-template-columns:repeat(3,1fr)}.ad-slot{min-height:80px}}
@media print{body{background:#fff}.site-header,.breadcrumbs,.hero,.privacy-note,.mobile-tabs,.left-panel,.right-panel,.text-panel,.toolbar,.statusbar,.ad-slot,.content-section,.site-footer,.drawer,.toast{display:none!important}.editor-shell{display:block;width:auto;margin:0}.canvas-panel{display:block!important;border:0;box-shadow:none}.canvas-viewport{overflow:visible;background:#fff}.canvas-stage{margin:0;box-shadow:none;transform:none!important;page-break-inside:avoid}@page{size:A4 landscape;margin:10mm}}