:root{--bg:#f5f5f7;--card:#fff;--ink:#1d1d1f;--muted:#6e6e73;--red:#2563eb;--red-dark:#1d4ed8;--line:#e6e6eb;--soft:#fff3f4}*,::after,::before{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:var(--red-dark)}.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);border-bottom:1px solid var(--line)}.topbar-inner{max-width:1160px;margin:auto;min-height:58px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:750;letter-spacing:-.6px;text-decoration:none;color:var(--ink)}.brand::before{content:"";width:10px;height:10px;display:inline-block;border-radius:50%;background:var(--red)}.navlinks{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.navlinks a{color:#4e4e56;text-decoration:none;font-weight:550;font-size:13px;transition:color .2s}.navlinks a:hover{color:var(--red)}.wrap{max-width:1160px;margin:0 auto;padding:0 24px}.crumbs{font-size:12px;color:var(--muted);padding:22px 0 0}.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--red)}.hero{text-align:center;padding:52px 12px 34px;max-width:830px;margin:0 auto}.hero h1{font-size:clamp(34px,5vw,56px);letter-spacing:-.045em;line-height:1.1;font-weight:700;margin:17px 0 15px}.hero p{font-size:clamp(16px,2vw,19px);line-height:1.55;color:var(--muted);margin:0 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a{font-size:11px}.navlinks{gap:10px}.panel-body{padding:14px}.hero{padding:30px 0 20px}.trust{gap:9px}.editor-buttons button{flex:1}.hero h1{font-size:clamp(32px,9vw,43px)}}.tool-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(285px,.75fr);gap:22px;align-items:start}.editor-canvas{display:block;max-width:100%;height:auto;margin:auto;touch-action:none;cursor:crosshair;border-radius:10px;box-shadow:0 8px 28px #00000016}.canvas-box{background:repeating-conic-gradient(#e9e9ed 0 25%,#fff 0 50%) 50%/20px 20px;padding:14px;border-radius:16px;overflow:auto;min-height:250px;display:flex;align-items:center;justify-content:center}.setting{margin:12px 0}.setting label{display:flex;justify-content:space-between;font-size:13px;font-weight:600;margin:0 0 6px}.setting input:not([type=checkbox]),.setting select,.setting textarea{width:100%;padding:10px;border:1px solid #d8d8df;border-radius:9px;background:#fff;font:inherit}.setting input[type=range]{padding:0}.setting input[type=color]{height:42px}.setting textarea{min-height:74px}.editor-buttons{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.editor-buttons button{border:1px solid #dedee4;border-radius:10px;padding:9px 13px;background:#fff;font:inherit;font-size:13px;cursor:pointer}.editor-buttons button.primary{background:#2563eb;color:#fff;border-color:#2563eb}.editor-buttons button:disabled{opacity:.5}.tool-notice{color:#666;font-size:12px;line-height:1.55}.results a{color:#2563eb}.editor-side{border:1px solid #e8e8eb;border-radius:18px;padding:20px;background:#fafafa}.editor-side h2{font-size:19px;margin:0 0 16px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#2563eb;font-weight:700}.toolbar-sub{font-size:12px;color:#74747e;margin:5px 0 12px}.canvas-caption{margin:10px 0 0;font-size:12px;color:#64646f}.picker{border:1.5px dashed #c9c9d0;border-radius:14px;background:#fafafa;padding:15px;display:block;cursor:pointer;text-align:center;margin-bottom:12px}.picker input{display:none}.status{margin:12px 0;font-size:13px;color:#666}.status.error{color:#1d4ed8}.status.ok{color:#15803d}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.info-grid article{border:1px solid #e8e8ee;border-radius:13px;padding:17px;background:#fff}.info-grid h3{font-size:16px;margin:0 0 8px}.info-grid p{font-size:14px;color:#676771;margin:0}.seo-copy{max-width:940px;margin:50px auto}.seo-copy h2{margin:34px 0 12px;letter-spacing:-.02em}.seo-copy li,.seo-copy p{color:#575760;line-height:1.7}.seo-copy details{border-bottom:1px solid #ddd;padding:13px 0}.seo-copy summary{font-weight:600;cursor:pointer}.related{display:flex;gap:12px;flex-wrap:wrap}.related a{border:1px solid #ddd;padding:8px 12px;border-radius:20px;text-decoration:none}@media(max-width:850px){.tool-layout{grid-template-columns:1fr}.info-grid{grid-template-columns:1fr}}