:root {
  --bg: #f4f6fb; --card: #fff; --ink: #1c2333; --muted: #6b7489; --line: #e3e7f0;
  --brand: #2f6bff; --brand-dk: #1f53d6; --ok: #179a5b; --warn: #c27a00; --err: #d23b3b;
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink); background: var(--bg);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; line-height: 1.6; }
.wrap { max-width: 560px; margin: 0 auto; padding: 40px 16px 64px; }
.hero h1 { margin: 0 0 6px; font-size: 26px; }
.hero p { margin: 0; color: var(--muted); }
h2 { font-size: 18px; margin: 0 0 12px; }
a { color: var(--brand); }

.stepbar { display: flex; gap: 8px; list-style: none; padding: 0; margin: 24px 0 16px; counter-reset: s; }
.stepbar li { flex: 1; font-size: 13px; color: var(--muted); padding-top: 8px; border-top: 3px solid var(--line); counter-increment: s; }
.stepbar li::before { content: counter(s) ". "; }
.stepbar li.on { color: var(--brand); border-color: var(--brand); font-weight: 600; }
.stepbar li.done { color: var(--ok); border-color: var(--ok); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 24px; box-shadow: 0 1px 2px rgba(20, 30, 60, .04); }
.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; background: none; border: 0; padding: 10px; font: inherit; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs button.on { color: var(--brand); border-color: var(--brand); font-weight: 600; }

label { display: block; margin: 0 0 14px; font-size: 14px; font-weight: 500; }
input:not([type=checkbox]), select {
  display: block; width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit; font-weight: 400;
  border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--ink);
}
input:focus, select:focus { outline: 2px solid rgba(47, 107, 255, .25); border-color: var(--brand); }
.row { display: flex; gap: 8px; align-items: center; }
.row input { flex: 1; }
.row button { margin-top: 6px; white-space: nowrap; }
label.check { display: flex; gap: 8px; align-items: flex-start; font-weight: 400; }
label.check input { margin-top: 5px; }

button { font: inherit; cursor: pointer; border-radius: 8px; }
button:disabled { opacity: .6; cursor: default; }
.primary { display: block; width: 100%; padding: 11px; border: 0; background: var(--brand); color: #fff; font-weight: 600; }
.primary:hover:not(:disabled) { background: var(--brand-dk); }
.primary.big { padding: 14px; font-size: 17px; margin-top: 8px; }
.ghost { padding: 9px 14px; border: 1px solid var(--line); background: #fff; color: var(--ink); }
.ghost:hover:not(:disabled) { border-color: var(--brand); color: var(--brand); }
.link { border: 0; background: none; color: var(--brand); padding: 0 0 0 8px; }

.hint { margin: -8px 0 14px; font-size: 13px; color: var(--muted); }
.muted { color: var(--muted); }
.who { margin: 0 0 16px; font-size: 14px; }
.warn { margin: 0 0 16px; padding: 10px 12px; background: #fff7e6; border-radius: 8px; color: var(--warn); font-size: 14px; }
.msg { margin: 12px 0 0; font-size: 14px; min-height: 1em; }
.msg.err { color: var(--err); } .msg.ok { color: var(--ok); } .msg.info { color: var(--muted); }

.howto { padding-left: 20px; margin: 0 0 12px; }
.howto li { margin-bottom: 6px; }
.alt { margin: 12px 0; padding: 10px 12px; background: var(--bg); border-radius: 8px; font-size: 14px; }
.alt summary { cursor: pointer; color: var(--brand); }
.alt code { flex: 1; display: block; padding: 8px; background: #fff; border: 1px solid var(--line); border-radius: 6px; font-size: 12px; word-break: break-all; user-select: all; }
kbd { padding: 1px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 4px; background: #fff; font-size: 12px; }
#howto { padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid var(--line); }

.progress { list-style: none; padding: 0; margin: 0 0 12px; }
.progress li { display: grid; grid-template-columns: 22px 1fr; column-gap: 8px; padding: 7px 0; color: var(--muted); }
.progress .icon { grid-row: span 3; font-weight: 700; text-align: center; }
.progress .detail { grid-column: 2; font-size: 13px; word-break: break-all; }
.progress progress { grid-column: 2; width: 100%; height: 8px; margin-top: 4px; }
.progress li.running { color: var(--brand); font-weight: 600; }
.progress li.running .icon { animation: spin 1.2s linear infinite; }
.progress li.ok { color: var(--ink); } .progress li.ok .icon { color: var(--ok); }
.progress li.skip .icon { color: var(--muted); }
.progress li.warn { color: var(--warn); }
.progress li.error { color: var(--err); }
.progress li .detail { font-weight: 400; color: var(--muted); }
.progress li.warn .detail, .progress li.error .detail { color: inherit; }
@keyframes spin { to { transform: rotate(360deg); } }
.ok-big { font-size: 18px; font-weight: 600; color: var(--ok); margin: 0 0 6px; }
#btn-restart { margin-top: 16px; }

dialog { max-width: 640px; width: calc(100% - 32px); border: 0; border-radius: 12px; padding: 24px; }
dialog::backdrop { background: rgba(20, 30, 60, .45); }
.doc { max-height: 60vh; overflow: auto; white-space: pre-wrap; font-size: 14px; margin-bottom: 16px; }

@media (max-width: 480px) { .wrap { padding-top: 24px; } .card { padding: 18px; } }