:root{--bg: #f3f5fa;--card: #ffffff;--line: #e7eaf1;--text: #1c2233;--dim: #6b7385;--faint: #a3a9b7;--accent: #5563ea;--accent-soft: #eceefe;--green: #16a36a;--red: #e5484d;--amber: #d98026;--shadow: 0 1px 2px rgba(28, 34, 51, .04), 0 4px 16px rgba(28, 34, 51, .05);--radius: 16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}a{color:inherit;text-decoration:none}.shell{max-width:680px;margin:0 auto;padding:20px 16px 48px}.back{display:inline-flex;align-items:center;gap:2px;color:var(--accent);font-weight:500;padding:6px 10px 6px 4px;border-radius:10px;transition:background .15s}.back:hover{background:var(--accent-soft)}.back--inline{margin:0 0 12px 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