:root{color:#18342b;background:#f3f6f3;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-synthesis:none;--green: #176b50;--green-soft: #e8f3ed;--ink: #18342b;--muted: #687b74;--line: #dfe7e2;--card: #fff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px}button,input{font:inherit}input{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fbfcfb;color:var(--ink)}input:focus{outline:2px solid #8fc4ac;border-color:var(--green)}.app-shell{max-width:820px;margin:0 auto;padding-bottom:120px}.topbar{padding:22px 20px 14px;display:flex;justify-content:space-between;align-items:end;background:linear-gradient(145deg,#0f5b43,#268367);color:#fff}.topbar h1{margin:2px 0 0;font-size:26px}.topbar-kicker{opacity:.8;font-size:13px;letter-spacing:.12em}.secure-badge{font-size:12px;background:#ffffff29;border:1px solid rgba(255,255,255,.35);padding:6px 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