:root { color-scheme: light dark; --bg: #f5f5f7; --card: #fff; --border: #d2d2d7; --text: #1d1d1f; --muted: #6e6e73;
  --accent: #007aff; --ok: #248a3d; --err: #d70015; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #1c1c1e; --card: #2c2c2e; --border: #3a3a3c; --text: #f5f5f7; --muted: #a1a1a6; --accent: #0a84ff;
    --ok: #30d158; --err: #ff453a; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px -apple-system, "PingFang TC", sans-serif; }
main { max-width: 640px; margin: 40px auto; padding: 0 24px; }
h1 { font-size: 26px; margin: 0 0 20px; }
h2 { font-size: 16px; margin: 0 0 6px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; margin-bottom: 16px; }
select { height: 36px; border: 1px solid var(--border); border-radius: 9px; padding: 0 10px; font: inherit; background: var(--bg); color: var(--text); }
#chat-status { align-self: center; color: var(--ok); font-size: 13px; }
.hint { color: var(--muted); font-size: 13px; margin: 4px 0 12px; }
.row { display: flex; gap: 8px; }
input { flex: 1; height: 36px; border: 1px solid var(--border); border-radius: 9px; padding: 0 12px; font: inherit; font-size: 15px;
  background: var(--bg); color: var(--text); outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
button { height: 36px; padding: 0 16px; border-radius: 9px; font: inherit; cursor: pointer; }
.plain { border: 1px solid var(--border); background: var(--card); color: var(--text); }
.primary { border: none; background: var(--accent); color: #fff; font-weight: 600; }
.actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 6px; }
#status.ok { color: var(--ok); }
#status.err { color: var(--err); }
h3 { font-size: 14px; margin: 18px 0 6px; }
.kv { display: flex; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--border); align-items: baseline; }
.kv span { width: 76px; color: var(--muted); flex: none; }
.kv b { font-weight: 500; word-break: break-all; }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12.5px; }
.intro { margin: 4px 0 10px; line-height: 1.65; }
.features { margin: 0 0 8px; padding-left: 20px; line-height: 1.65; }
.features li { margin: 3px 0; }
.folders { list-style: none; margin: 4px 0 12px; padding: 0; border: 1px solid var(--border); border-radius: 9px; overflow: hidden; }
.folders:empty { display: none; }
.folders li { display: flex; align-items: center; gap: 8px; padding: 7px 12px; border-top: 1px solid var(--border); }
.folders li:first-child { border-top: none; }
.folders .path { flex: 1; font-family: ui-monospace, Menlo, monospace; font-size: 12.5px; word-break: break-all; }
.folders .missing { color: var(--err); font-size: 12px; }
.folders .tag { color: var(--muted); font-size: 12px; }
.folders button { height: 26px; padding: 0 9px; font-size: 12px; }
#office-status, #media-status { align-self: center; font-size: 13px; color: var(--ok); }
#office-status.err, #media-status.err { color: var(--err); }
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: grid; place-items: center; z-index: 10; }
.modal[hidden] { display: none; }
.dialog { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; width: min(480px, 92vw); }
.dialog h3 { margin: 0 0 8px; font-size: 16px; }
.dialog p { margin: 0 0 16px; white-space: pre-line; line-height: 1.6; color: var(--muted); word-break: break-all; }
.dialog-actions { display: flex; gap: 8px; justify-content: flex-end; flex-wrap: wrap; }
.gd-who { margin: 0 0 12px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.gd-adv { margin-top: 14px; } .gd-adv summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.gd-adv .row { margin-top: 8px; }
.hint.err { color: #cf222e; }
.check { display: flex; gap: 8px; align-items: flex-start; line-height: 1.5; cursor: pointer; }
.check input { flex: none; width: auto; height: auto; margin-top: 3px; }
#ai-status { min-height: 18px; color: var(--ok); margin: 6px 0 0; }