:root{--bg:#eef0f4;--surface:#fff;--border:#d8dce3;--text:#1f2937;--muted:#6b7280;--accent:#2563eb;--accent-soft:#dbe7fe;--danger:#dc2626;--header-bg:#1e293b;--header-text:#f8fafc;--header-muted:#94a3b8;color:var(--text);background:var(--bg);font-family:system-ui,-apple-system,Segoe UI,Hiragino Sans,Yu Gothic UI,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}button,input,select,textarea{font:inherit;color:inherit}button,.button{border:1px solid var(--border);background:var(--surface);cursor:pointer;white-space:nowrap;border-radius:6px;padding:6px 10px;display:inline-block}button:hover:not(:disabled){border-color:var(--accent)}button:disabled{opacity:.45;cursor:default}button.primary,.button.primary{text-align:center;border-color:var(--accent);background:var(--accent);color:#fff;width:100%;padding:10px;font-weight:600;text-decoration:none}button.danger{width:100%;color:var(--danger)}button.danger:hover{border-color:var(--danger)}.app{flex-direction:column;min-height:100vh;display:flex}.site-main{flex:1}.app-fixed{height:100vh}.app-fixed .site-main{min-height:0;display:flex}.editor{flex-direction:column;flex:1;min-width:0;display:flex}.site-header{background:var(--header-bg);color:var(--header-text);flex-wrap:wrap;align-items:center;gap:8px 16px;padding:10px 16px;display:flex}.brand{color:inherit;align-items:center;gap:8px;text-decoration:none;display:flex}.brand-logo{width:28px;height:28px}.brand-name{white-space:nowrap;letter-spacing:.02em;font-size:20px;font-weight:700}.tagline{color:var(--header-muted);margin:0;font-size:13px}.site-nav{gap:4px;margin-left:auto;display:flex}.nav-link{color:var(--header-muted);white-space:nowrap;border-radius:6px;padding:6px 12px;text-decoration:none}.nav-link:hover{color:var(--header-text);background:#ffffff14}.nav-link.active{color:var(--header-text);background:#ffffff24}.lang-switch{border:1px solid #fff3;border-radius:8px;padding:2px;display:flex}.lang-link{color:var(--header-muted);white-space:nowrap;border-radius:6px;padding:4px 10px;font-size:13px;text-decoration:none}.lang-link:hover{color:var(--header-text)}.lang-short{display:none}.lang-link.active{color:var(--header-text);background:#ffffff24}.toolbar{background:var(--surface);border-bottom:1px solid 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var(--border);flex-shrink:0;width:284px;overflow-y:auto}.panel-section{border-bottom:1px solid var(--border);flex-direction:column;gap:12px;padding:16px;display:flex}.panel-section h2{margin:0;font-size:14px}.field{min-width:0;color:var(--muted);flex-direction:column;flex:1;gap:4px;font-size:13px;display:flex}.field input[type=color]{border:1px solid var(--border);background:var(--surface);border-radius:6px;width:100%;height:32px;padding:2px}.field input[type=text],.field input[type=number],.field select,.field textarea{border:1px solid var(--border);background:var(--surface);border-radius:6px;width:100%;padding:6px 8px}.field textarea{resize:vertical}.field-row{gap:8px;display:flex}.button-row{grid-template-columns:1fr 1fr;gap:4px;display:grid}.checkbox{align-items:center;gap:6px;font-size:13px;display:flex}.hint{color:var(--muted);margin:0;font-size:12px}.site-footer{background:var(--surface);border-top:1px solid var(--border);color:var(--muted);flex-wrap:wrap;align-items:center;gap:4px 20px;padding:10px 16px;font-size:12px;display:flex}.footer-nav{flex-wrap:wrap;gap:4px 16px;margin-right:auto;display:flex}.footer-nav a{color:var(--text);text-decoration:none}.footer-nav a:hover{text-decoration:underline}.ad-slot{flex-direction:column;align-items:center;gap:2px;display:flex}.ad-label{color:var(--muted);font-size:10px}.ad-box{max-width:100%}.ad-square .ad-box{flex-shrink:0;width:250px;height:250px}.ad-skyscraper .ad-box{flex-shrink:0;width:160px;height:600px}.ad-placeholder{color:var(--muted);background:#f6f7f9;border:1px dashed #b6bcc6;border-radius:4px;flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:13px;display:flex}.panel-ad{padding:32px 16px 16px}.side-ad{background:var(--bg);border-left:1px solid var(--border);flex-shrink:0;justify-content:flex-start;padding:8px 16px;overflow-y:auto}@media (width<=1199px){.side-ad{display:none}}.page{width:100%;max-width:760px;margin:0 auto;padding:40px 16px 56px;line-height:1.8}.page h1{margin:0 0 20px;font-size:28px;line-height:1.4}.page h2{border-bottom:2px solid var(--border);margin:40px 0 12px;padding-bottom:6px;font-size:20px}.page h3{margin:24px 0 8px;font-size:16px}.page p,.page ul,.page ol{margin:0 0 12px}.page li+li{margin-top:6px}.page a:not(.button){color:var(--accent)}.lead{font-size:16px}.note,.page-meta{color:var(--muted);font-size:13px}.page-meta{text-align:right;margin-top:40px!important}.page-cta{max-width:280px;margin-top:32px!important}.shortcut-list{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px 16px;margin:0 0 12px;font-size:14px;display:grid}.shortcut-list div{align-items:center;gap:10px;display:flex}.shortcut-list dt{white-space:nowrap}.shortcut-list dd{color:var(--muted);margin:0}kbd{border:1px solid var(--border);background:var(--surface);text-align:center;border-bottom-width:2px;border-radius:4px;min-width:1.8em;padding:1px 6px;font-family:inherit;font-size:12px;line-height:1.6;display:inline-block}.info-table{border-collapse:collapse;width:100%}.info-table th,.info-table td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:12px}.info-table th{background:var(--surface);white-space:nowrap;width:9em;font-weight:600}@media (width<=720px){.app-fixed{height:auto}.workspace{flex-direction:column}.canvas-area{flex:none;height:60vh}.panel{border-right:none;border-top:1px solid var(--border);order:1;width:100%;overflow:visible}.canvas-area{padding:16px}.tool-label,.tagline{display:none}.site-header{gap:8px}.nav-link{padding:6px 8px}.brand-logo{width:24px;height:24px}.brand-name{font-size:17px}.lang-link{padding:4px 8px}.lang-full{display:none}.lang-short{display:inline}.page{padding-top:24px}.page h1{font-size:24px}}