:root{--bg:#f4f6fa;--card:#fff;--line:#e4e8ef;--ink:#16202e;--muted:#6a7584;--acc:#2f6fed;--acc-deep:#2258c4;--acc-soft:#e9f0ff;--ok:#179a58;--ok-soft:#e3f6ec;--warn:#d68a00;--warn-soft:#fff4de;--bad:#d7363f;--bad-soft:#fdeaeb;--r:12px;--side:232px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0;font:15px/1.45 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Be Vietnam Pro,Arial,sans-serif}a{color:var(--acc);text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}h1{margin:0 0 4px;font-size:22px;font-weight:800}h2{margin:0 0 10px;font-size:17px;font-weight:700}h3{margin:0 0 8px;font-size:15px;font-weight:700}.sub{color:var(--muted);margin:0 0 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