:root{--bg:#f4f2ed;--paper:#fffefa;--ink:#25251f;--muted:#727268;--line:#dedbd1;--accent:#435747;--danger:#9d3434}*{box-sizing:border-box}html{background:var(--bg);color:var(--ink);font-family:ui-sans-serif,system-ui,PingFang SC,Microsoft YaHei,sans-serif}body{margin:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}.shell{width:min(760px,100%);margin:auto;padding:24px 18px 80px}.nav{border-bottom:1px solid var(--line);z-index:10;background:#f4f2edf2;align-items:center;gap:8px;padding:12px max(18px,50vw - 380px);display:flex;position:sticky;top:0;overflow:auto}.nav a{white-space:nowrap;border-radius:8px;padding:8px 10px}.nav a:hover{background:#e8e5dc}.brand{margin-right:auto;font-family:Georgia,Songti SC,serif;font-size:22px}.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;margin:14px 0;padding:20px;box-shadow:0 2px 12px #3331}.auth{place-items:center;min-height:100vh;padding:22px;display:grid}.auth .card{width:min(420px,100%)}h1,h2,h3{font-family:Georgia,Songti SC,serif;line-height:1.25}h1{margin:0 0 8px;font-size:30px}h2{font-size:22px}.muted{color:var(--muted);font-size:14px}.stack{gap:12px;display:grid}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.field{gap:6px;display:grid}.field input,.field textarea,.field select{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:10px;padding:12px}textarea{resize:vertical;min-height:140px}.btn{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:11px 16px;font-weight:650}.btn.secondary{color:var(--ink);background:#e8e5dc}.btn.danger{background:var(--danger)}.btn:disabled{opacity:.55;cursor:wait}.badge{color:#405043;background:#e5e9e4;border-radius:999px;padding:4px 9px;font-size:12px}.error{color:var(--danger);font-size:14px}.success{color:#386342}.spacer{height:8px}.topic-note{margin:18px 0 8px;padding:4px 2px}.topic-note p{margin:6px 0}.topic-note strong{color:inherit}.message{background:var(--paper);border:1px solid var(--line);white-space:pre-wrap;border-left:4px solid #b7b4aa;border-radius:12px;margin:18px 0;padding:16px;box-shadow:0 2px 10px #3331}.message.advisor{border-left-color:var(--accent);background:#f2f5f0}.entitlement-archive{border-top:1px solid var(--line);margin-top:10px;padding-top:10px}.entitlement-archive summary{color:var(--muted);cursor:pointer;font-size:14px}.entitlement-line.unavailable{color:#aaa;font-size:14px}.plan-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.plan-grid .card{margin:0}.price{font-family:Georgia,serif;font-size:25px}.stat-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.stat{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:15px}.stat strong{font-size:24px;display:block}@media (max-width:620px){.nav .brand{display:none}.nav{justify-content:space-between}.nav a{padding:8px 6px;font-size:14px}.plan-grid,.stat-grid{grid-template-columns:1fr}.shell{padding-top:16px}.card{padding:16px}.message{padding:14px}h1{font-size:27px}}
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