:root{--ink:#1c1a17;--muted:#6b655c;--line:#e8e2d8;--bg:#faf8f4;--card:#fff;--accent:#8a4b2f;--accent-soft:#f6ece4;--badge-demo:#e9f2e4;--badge-demo-ink:#3d6b2f;--badge-soon:#f3eee6;--badge-soon-ink:#8a7a5c;--badge-exp:#efe6f4;--badge-exp-ink:#6d3d8a}*{box-sizing:border-box}html,body{margin:0;padding:0}body{color:var(--ink);background:var(--bg);font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.65}.wrap{max-width:680px;margin:0 auto;padding:20px 16px 64px}.topbar{border-bottom:1px solid var(--line);align-items:center;gap:12px;margin-bottom:20px;padding:12px 0;display:flex}.logo{color:#fff;background:linear-gradient(135deg,#c98a5e,#8a4b2f);border-radius:10px;flex:none;justify-content:center;align-items:center;width:34px;height:34px;font-size:18px;font-weight:700;display:flex}.brand small{color:var(--muted);font-size:12px;display:block}.brand b{font-size:17px}h1{margin:0 0 8px;font-size:24px}h2{margin:28px 0 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