body { margin: 0; padding: 24px 16px; font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f5f6f8; color: #1f2329; }
.card { max-width: 560px; margin: 0 auto; background: #fff; border-radius: 8px; padding: 20px; box-shadow: 0 1px 3px rgba(0, 0, 0, .08); }
h1 { font-size: 18px; margin: 0 0 12px; }
.meta { color: #646a73; margin-bottom: 12px; word-break: break-all; }
.log div { padding: 4px 0; border-bottom: 1px solid #f0f1f2; }
.ok { color: #1a7f37; }
.fail { color: #cf222e; }
.tip { margin-top: 16px; color: #8f959e; font-size: 12px; }