:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e3e8ef;
  --text: #1f2733;
  --muted: #6b7686;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
  --code-bg: #f1f5f9;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.wrap { max-width: 920px; margin: 0 auto; padding: 24px 16px 60px; }
header h1 { font-size: 22px; margin: 0 0 4px; }
header p { color: var(--muted); margin: 0 0 16px; font-size: 14px; }
.banner {
  padding: 10px 14px; border-radius: 10px; font-size: 14px;
  margin-bottom: 20px; display: flex; align-items: center; gap: 8px;
}
.banner.ok { background: #ecfdf5; color: var(--success); border: 1px solid #a7f3d0; }
.banner.bad { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.banner.warn { background: #fffbeb; color: var(--warn); border: 1px solid #fde68a; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 20px; margin-bottom: 18px;
}
.card h2 { font-size: 16px; margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }
.card h2 .tag { font-size: 11px; font-weight: 500; color: var(--muted); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.field input {
  width: 100%; padding: 8px 10px; border: 1px solid var(--border);
  border-radius: 8px; font-size: 14px; background: #fff; color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.field input:focus { outline: 2px solid #bfdbfe; border-color: var(--primary); }
.btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
button {
  border: none; border-radius: 8px; padding: 9px 16px; font-size: 14px;
  cursor: pointer; font-weight: 500; transition: background .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: #eef2f7; color: var(--text); }
.btn-ghost:hover { background: #e2e8f0; }
button:disabled { opacity: .45; cursor: not-allowed; }
.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin-top: 12px; }
.device-info { font-size: 13px; }
.device-info table { width: 100%; border-collapse: collapse; }
.device-info td { padding: 5px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.device-info td:first-child { color: var(--muted); width: 140px; white-space: nowrap; }
.device-info code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.empty { color: var(--muted); font-size: 13px; padding: 8px 0; }
.progress-wrap { margin: 14px 0 8px; }
.progress-bar { height: 12px; background: #eef2f7; border-radius: 999px; overflow: hidden; }
.progress-fill {
  height: 100%; width: 0%; background: linear-gradient(90deg, #3b82f6, #2563eb);
  transition: width .2s ease;
}
.progress-text { font-size: 12px; color: var(--muted); margin-top: 6px; }
.log {
  background: #0f172a; color: #e2e8f0; border-radius: 10px; padding: 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px;
  height: 220px; overflow-y: auto; white-space: pre-wrap; line-height: 1.5;
}
.log .t { color: #64748b; }
.log .ok { color: #4ade80; }
.log .warn { color: #fbbf24; }
.log .err { color: #f87171; }
.file-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.file-name { font-size: 13px; color: var(--muted); }
details { margin-top: 10px; font-size: 13px; color: var(--muted); }
summary { cursor: pointer; color: var(--primary); }
code.inline { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
footer { font-size: 12px; color: var(--muted); text-align: center; margin-top: 8px; }
a { color: var(--primary); }