:root {
  --bg: #f6f7f9; --card: #fff; --fg: #1d2129; --muted: #6b7280; --line: #e5e7eb;
  --accent: #2563eb; --accent-soft: #eff4ff; --danger: #dc2626; --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1115; --card: #171a21; --fg: #e5e7eb; --muted: #9ca3af; --line: #2a2f3a; --accent: #60a5fa; --accent-soft: #1b2638; --danger: #f87171; color-scheme: dark; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
#regionType select { width: auto; min-width: 180px; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; padding-bottom: 80px; }
.wrap { max-width: 980px; margin: 0 auto; padding-inline: 16px; }
.top { padding-block: 28px 8px; }
h1 { margin: 0 0 4px; font-size: 24px; }
h2 { margin: 0 0 8px; font-size: 17px; }
h3 { margin: 0; font-size: 14px; }
.muted { color: var(--muted); font-size: 13px; font-weight: normal; }
.spacer { flex: 1; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; margin-block: 14px; }
.card-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.card-head h2 { margin: 0; }
.badge { font-size: 12px; background: var(--accent-soft); color: var(--accent); padding: 2px 8px; border-radius: 999px; }
.field { display: flex; flex-direction: column; gap: 4px; margin-block: 10px; }
.field > span:first-child { font-size: 13px; color: var(--muted); }
input[type=url], input:not([type]), input[type=text], textarea, select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); font: inherit;
}
textarea { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
details summary { cursor: pointer; color: var(--muted); margin-top: 8px; }
.cat { border-top: 1px dashed var(--line); padding-block: 12px; }
.cat:first-child { border-top: 0; }
.cat-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; user-select: none; background: var(--bg); }
.chip:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.chip input { margin: 0; accent-color: var(--accent); }
.chip small { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.chip { max-width: 100%; flex-wrap: wrap; }
.rows { display: grid; gap: 8px; margin-top: 10px; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row-label { min-width: 190px; }
.row select { width: auto; min-width: 180px; flex: 1; max-width: 320px; }
.radios { display: grid; gap: 8px; margin-bottom: 12px; }
.radio { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; cursor: pointer; }
.radio:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.radio span { display: flex; flex-direction: column; }
.radio small { color: var(--muted); }
.grid3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
button, .button { font: inherit; padding: 8px 16px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; text-decoration: none; display: inline-block; }
button:disabled { opacity: .6; cursor: wait; }
button.ghost, .button.ghost { background: transparent; color: var(--accent); }
button.small { padding: 4px 10px; font-size: 13px; }
button.link { border: 0; background: none; color: var(--accent); padding: 2px 4px; }
button.link.active { font-weight: 600; text-decoration: underline; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button.danger.ghost { background: transparent; color: var(--danger); }
.saved { display: flex; flex-wrap: wrap; gap: 4px 8px; align-items: center; margin-top: 8px; }
.result { border-color: var(--accent); }
.copyrow { display: flex; gap: 8px; margin-block: 8px; }
.copyrow input { font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.btnrow { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-block: 8px; }
.confirm { display: inline-flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bar { position: fixed; left: 0; right: 0; bottom: 0; background: var(--card); border-top: 1px solid var(--line); padding-block: 10px calc(10px + env(safe-area-inset-bottom, 0px)); }
.bar-inner { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
dialog { width: min(900px, calc(100vw - 32px)); max-height: 85vh; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--fg); padding: 0; }
dialog::backdrop { background: rgb(0 0 0 / .45); }
.dialog-head { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--card); }
pre { margin: 0; padding: 16px; overflow: auto; max-height: calc(85vh - 60px); font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; }
.toast { position: fixed; left: 50%; top: 20px; transform: translateX(-50%); padding: 10px 16px; border-radius: 8px; background: var(--fg); color: var(--bg); z-index: 10; box-shadow: 0 4px 16px rgb(0 0 0 / .2); }
.toast.err { background: var(--danger); color: #fff; }
@media (max-width: 560px) { .row-label { min-width: 0; width: 100%; } .row select { max-width: none; } .bar-inner #summary { width: 100%; } }
.upstreams { display: grid; gap: 8px; justify-items: start; }
.up-row { display: flex; gap: 8px; width: 100%; align-items: center; }
.up-row .up-name { width: 120px; flex: none; }
.up-row .up-url { flex: 1; min-width: 0; font-family: ui-monospace, Menlo, monospace; font-size: 13px; }
.rules-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; }
.rule { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: var(--bg); display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.rule.on { border-color: var(--accent); background: var(--accent-soft); }
.rule-head { display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; cursor: pointer; user-select: none; }
.rule-head input { margin: 0; accent-color: var(--accent); align-self: center; }
.rule-head small { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.rule-target { padding: 4px 8px; font-size: 13px; background: var(--card); }
.rule-target.changed { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.group-list { margin-top: 12px; }
@media (max-width: 560px) { .up-row { flex-wrap: wrap; } .up-row .up-name { width: 100%; } }
.login { max-width: 420px; margin: 40px auto; }
#logoutBtn { margin-top: 4px; }