:root{--bg: #FFF7FA;--panel: #FFFFFF;--panel-2: #FFF1F6;--line: #F2D3DF;--ink: #2B2230;--dim: #8A7B84;--pink: #E85D8A;--pink-deep: #C9406E;--pink-soft: #FFE3EE;--mint: #3F9E9B;--danger: #D9534F;--radius: 8px}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;background:var(--bg);color:var(--ink);font-family:Noto Sans SC,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:14px;line-height:1.55}#app{min-height:100vh;display:flex;flex-direction:column}a{color:var(--pink-deep);text-decoration:none}h1,h2,h3{margin:0;font-weight:600;letter-spacing:.02em}.dim{color:var(--dim)}.small{font-size:12px}.err{color:var(--danger)}.ok{color:var(--mint)}.hidden{display:none!important}.grow{flex:1}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius);background:var(--panel);border:1px solid 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