:root{--bg:#f8fafc;--bg-secondary:#f1f5f9;--card:#fff;--card-hover:#ffffff;--border:#e2e8f0;--border-hover:#cbd5e1;--text:#0f172a;--text-secondary:#475569;--muted:#64748b;--primary:#3b82f6;--primary-hover:#2563eb;--primary-light:#eff6ff;--primary-weak:#dbeafe;--success:#10b981;--success-light:#d1fae5;--warning:#f59e0b;--warning-light:#fef3c7;--error:#ef4444;--error-light:#fee2e2;--shadow-sm:0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: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);--radius:8px;--radius-lg:12px;--transition:all .2s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif;background:var(--bg);color:var(--text);margin:0;line-height:1.6;font-size:14px}.container{max-width:1280px;margin:0 auto;padding:24px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;padding-bottom:16px;border-bottom:1px solid var(--border)}header h1{font-size:24px;font-weight:600;margin:0;color:var(--text);letter-spacing:-.025em}header a{color:var(--primary);text-decoration:none;font-weight:500;padding:8px 16px;border-radius:var(--radius);transition:var(--transition)}header a:hover{background:var(--primary-light);color:var(--primary-hover)}.grid{display:grid;grid-template-columns:400px 1fr;gap:24px;min-height:calc(100vh - 300px)}@media(max-width:968px){.grid{grid-template-columns:1fr}}section{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow);transition:var(--transition)}.grid>section:first-child{display:flex;flex-direction:column;height:100%}section:hover{box-shadow:var(--shadow-lg);border-color:var(--border-hover)}h2{font-size:16px;font-weight:600;margin:16px 0 12px;color:var(--text);display:flex;align-items:center;gap:8px}h2:first-child{margin-top:0}textarea{width:100%;border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;font-family:ui-monospace,Consolas,Monaco,Cascadia Code,Roboto Mono,monospace;background:var(--bg-secondary);color:var(--text);font-size:13px;line-height:1.5;resize:none;transition:var(--transition)}.grid>section:first-child>h2:first-of-type{margin-top:0}.textarea-container{flex:1;display:flex;flex-direction:column;gap:16px;margin-bottom:16px}.textarea-container>div{flex:1;display:flex;flex-direction:column}.textarea-container h2{margin:0 0 12px}#tpl,#data{flex:1;min-height:0}textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a;background:var(--card)}.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px;align-items:center}.row.full-width{width:100%;justify-content:center}label{display:flex;align-items:center;gap:8px;color:var(--text-secondary);font-weight:500;font-size:13px}select,input{border:1px solid var(--border);border-radius:var(--radius);padding:10px 12px;background:var(--card);color:var(--text);font-size:14px;transition:var(--transition);min-height:40px}select:focus,input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}button{padding:10px 16px;border:1px solid var(--primary);color:var(--primary);background:var(--card);border-radius:var(--radius);cursor:pointer;font-weight:500;font-size:14px;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;white-space:nowrap;width:100%}button:hover{background:var(--primary);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow)}button:active{transform:translateY(0);box-shadow:var(--shadow-sm)}button:focus{outline:none;box-shadow:0 0 0 3px #3b82f64d}button.secondary{border-color:var(--border);color:var(--text-secondary)}button.secondary:hover{background:var(--bg-secondary);color:var(--text);border-color:var(--border-hover)}.preview{min-height:95%;display:flex;justify-content:center;align-items:center;margin-top:16px;padding:20px;border:2px dashed var(--border);border-radius:var(--radius-lg);background:var(--bg-secondary);transition:var(--transition)}.preview.has-content{border-style:solid;background:var(--card);display:flex;justify-content:center;align-items:center;padding:20px;min-height:500px}.preview-placeholder{text-align:center;color:var(--text-secondary);font-size:16px;padding:40px 20px}.preview-placeholder p{margin:0}.preview img{max-width:90%;max-height:90%;height:auto;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);padding:16px;box-shadow:var(--shadow);transition:var(--transition);object-fit:contain}.preview img:hover{transform:translateY(-2px) scale(1.02);box-shadow:var(--shadow-lg);border-color:var(--primary)}.meta{font-size:12px;color:var(--text-secondary);background:var(--bg-secondary);padding:8px 12px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center}.toast{position:fixed;left:50%;top:24px;transform:translate(-50%);background:var(--text);color:var(--card);padding:12px 20px;border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);z-index:9999;font-weight:500;animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translate(-50%) translateY(-20px)}to{opacity:1;transform:translate(-50%) translateY(0)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:4px}::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--muted)}