:root{color-scheme:light;--bg: #f4f7fb;--ink: #111827;--muted: #667085;--panel: rgba(255, 255, 255, .95);--panel-border: rgba(148, 163, 184, .2);--shadow: 0 18px 40px rgba(15, 23, 42, .08);--shadow-soft: 0 4px 16px rgba(15, 23, 42, .06);--accent: #f59e0b;--accent-soft: #fef3c7;--radius: 12px;--radius-sm: 8px;--checker: repeating-conic-gradient(#e5e7eb 0% 25%, #fff 0% 50%) 0 0 / 16px 16px}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;color:var(--ink);font-family:Inter,Segoe UI,Arial,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:radial-gradient(circle at top left,rgba(245,158,11,.1),transparent 30%),radial-gradient(circle at top right,rgba(251,191,36,.08),transparent 28%),linear-gradient(180deg,#fffbeb 0%,var(--bg) 100%);min-height:100vh}button,textarea,input,select{font:inherit}.page{max-width:1100px;margin:0 auto;padding:32px 24px 64px}.layout{display:grid;grid-template-columns:480px 1fr;gap:28px;align-items:start}@media(max-width:780px){.layout{grid-template-columns:1fr}}.page-header{margin-bottom:28px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:4px}.page-header__name{font-size:28px;font-weight:800;margin:0 0 6px;color:var(--ink)}.page-header__desc{margin:0;color:var(--muted);font-size:14px}.panel{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius);box-shadow:var(--shadow-soft);padding:20px;display:flex;flex-direction:column;gap:0}.section{padding:14px 0;border-bottom:1px solid rgba(148,163,184,.12)}.section:last-child{border-bottom:none;padding-bottom:0}.section:first-child{padding-top:0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field-label{display:block;font-size:12px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.input{width:100%;padding:10px 12px;border:1px solid var(--panel-border);border-radius:var(--radius-sm);background:#f9fafb;color:var(--ink);font-size:14px;resize:vertical;outline:none;transition:border-color .15s}.input:focus{border-color:var(--accent);background:#fff}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.toggle{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:13px;color:var(--ink);-webkit-user-select:none;user-select:none}.toggle input{accent-color:var(--accent);width:15px;height:15px;cursor:pointer}.seg-row{display:flex;align-items:center;gap:10px}.seg{display:flex;border:1.5px solid var(--panel-border);border-radius:8px;overflow:hidden;background:#f3f4f6}.seg-btn{padding:5px 14px;border:none;background:transparent;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;transition:background .12s,color .12s;white-space:nowrap}.seg-btn+.seg-btn{border-left:1.5px solid var(--panel-border)}.seg-btn.active{background:#fff;color:var(--ink);box-shadow:0 1px 3px #00000014}.color-picker{width:36px;height:36px;padding:2px;border:1px solid var(--panel-border);border-radius:6px;cursor:pointer;background:none}.color-preview{width:36px;height:36px;border:1px solid var(--panel-border);border-radius:6px;overflow:hidden;background:#fff;flex-shrink:0}.color-preview .color-picker{width:100%;height:100%;border:none;border-radius:0;display:block}.color-preview--transparent{background:var(--checker)}.color-preview--transparent .color-picker{opacity:0}.color-picker:disabled{opacity:.35;cursor:not-allowed}.color-value{font-size:12px;color:var(--muted);font-family:monospace}.muted{color:var(--muted);font-size:14px}.muted--disabled{opacity:.4}.select-sm{font-size:12px;padding:4px 8px;border:1px solid var(--panel-border);border-radius:6px;background:#f9fafb;color:var(--ink);cursor:pointer;outline:none}.select-sm:disabled{opacity:.45;cursor:not-allowed}.presets{display:flex;gap:6px;flex-wrap:wrap}.preset-btn{display:flex;align-items:center;gap:6px;padding:6px 12px;border:1.5px solid var(--panel-border);border-radius:20px;background:#fff;cursor:pointer;font-size:13px;font-weight:500;color:var(--ink);transition:border-color .15s,box-shadow .15s}.preset-btn:hover{border-color:var(--preset-color, var(--accent))}.preset-btn.active{border-color:var(--preset-color, var(--accent));background:color-mix(in srgb,var(--preset-color, var(--accent)) 8%,#fff);color:var(--preset-color, var(--accent));box-shadow:0 0 0 3px color-mix(in srgb,var(--preset-color, var(--accent)) 15%,transparent)}.preset-swatch{width:12px;height:12px;border-radius:50%;background:var(--preset-color, var(--accent));flex-shrink:0}.chip-group{display:flex;gap:6px;flex-wrap:wrap}.chip{padding:4px 10px;border:1.5px solid var(--panel-border);border-radius:16px;background:#fff;cursor:pointer;font-size:12px;font-weight:500;color:var(--muted);transition:border-color .15s,color .15s,background .15s}.chip:hover{border-color:var(--accent);color:var(--ink)}.chip.active{border-color:var(--accent);background:var(--accent-soft);color:#92400e}.logo-upload{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.upload-btn{display:inline-block;padding:6px 14px;border:1.5px dashed var(--panel-border);border-radius:var(--radius-sm);cursor:pointer;font-size:13px;color:var(--muted);transition:border-color .15s,color .15s}.upload-btn:hover{border-color:var(--accent);color:var(--accent)}.upload-btn input[type=file]{display:none}.remove-btn{padding:5px 10px;border:1px solid #fca5a5;border-radius:var(--radius-sm);background:#fff;color:#dc2626;font-size:12px;cursor:pointer}.remove-btn:hover{background:#fee2e2}.hint{font-size:11px;color:var(--muted);font-style:italic}.field-label-value{font-weight:400;color:var(--ink);text-transform:none;letter-spacing:0;font-size:12px;margin-left:4px}.slider{width:100%;cursor:pointer;height:4px;margin:4px 0 2px;accent-color:var(--accent)}.slider-hints{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-top:2px}.preview-area{display:flex;flex-direction:column;align-items:center;gap:16px;position:sticky;top:24px}.qr-canvas{width:320px;height:320px;display:grid;place-items:center;border-radius:12px;overflow:hidden;line-height:0;box-shadow:var(--shadow);background:#fff}.qr-canvas--transparent{background:var(--checker)}.qr-canvas canvas,.qr-canvas svg{display:block}.download-row{display:flex;justify-content:center;width:100%}.download-btn{min-width:180px;padding:12px 36px;border:none;border-radius:24px;background:var(--accent);color:#fff;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 4px 14px #f59e0b59;transition:transform .12s,box-shadow .12s}.download-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #f59e0b73}.download-btn:active{transform:translateY(0)}.scan-hint{font-size:12px;color:var(--muted);text-align:center;margin:0}