:root {
  --paper:#f2f2f2; --surface:#ffffff; --ink:#001c2a; --muted:#454545;
  --line:#dee2e3; --accent:#da3b28; --accent-dark:#a92a1a; --yellow:#ffd230;
  --blue:#0f6461; --teal:#62bbb9; --teal-deep:#0f6461; --teal-tint:#f3f7f7;
  --navy:#001c2a;
  --shadow:0 18px 50px rgba(0,28,42,.12); --shadow-soft:0 7px 22px rgba(0,28,42,.08);
  --radius-sm:10px; --radius:18px; --radius-lg:28px;
  font-family:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, "Segoe UI", sans-serif;
  color:var(--ink); background:var(--paper); font-synthesis:none;
}
* { box-sizing:border-box; }
body {
  margin:0; min-height:100vh; background:radial-gradient(circle at 80% -10%, rgba(98,187,185,.12), transparent 28rem), var(--paper);
  color:var(--ink); font:15px/1.5 "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
}

svg { width:20px; height:20px; fill:none; stroke:currentColor; stroke-linecap:round; stroke-linejoin:round; stroke-width:1.8; }
:focus-visible { outline:3px solid rgba(98,187,185,.55); outline-offset:3px; }
.layout { display:flex; min-height:100vh; }
.sidebar {
  position:sticky; top:0; width:230px; height:100vh; display:flex; flex-direction:column;
  padding:27px 20px 18px; border-right:1px solid rgba(255,255,255,.1);
  background:linear-gradient(180deg, #00293d 0%, #001c2a 100%); color:white; flex-shrink:0;
}
.brand { display:flex; align-items:center; gap:11px; padding:0 4px; margin-bottom:38px; }
.brand-mark {
  display:grid; width:33px; height:33px; place-items:center; border-radius:9px 9px 9px 2px;
  background:#000; color:white; font:400 20px/1 "PingFang SC", "Microsoft YaHei", sans-serif;
}
.brand-name { color:white; font:400 25px/1 "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing:-.2px; }
.brand-name span { color:var(--yellow); }
.nav-link {
  position:relative; display:flex; align-items:center; gap:12px; min-height:44px;
  padding:0 12px; border-radius:11px; color:rgba(255,255,255,.72); font-size:14px;
  font-weight:600; text-decoration:none; transition:160ms ease;
}
.nav-link:hover { color:white; background:rgba(255,255,255,.08); }
.nav-link.active { color:var(--navy); background:var(--teal); box-shadow:var(--shadow-soft); }
.nav-link.active::before {
  content:""; position:absolute; left:-20px; width:3px; height:22px;
  border-radius:0 3px 3px 0; background:var(--yellow);
}
.nav-link svg { width:19px; }
.nav-group {
  position:relative; display:flex; align-items:center; justify-content:space-between;
  gap:12px; width:100%; min-height:44px; padding:0 12px; margin-top:2px;
  border:0; border-radius:11px; background:transparent; color:rgba(255,255,255,.72);
  font-size:14px; font-weight:600; cursor:pointer; transition:160ms ease;
}
.nav-group:hover { color:white; background:rgba(255,255,255,.08); }
.nav-group.active { color:var(--navy); background:var(--teal); box-shadow:var(--shadow-soft); }
.nav-group.active::before {
  content:""; position:absolute; left:-20px; width:3px; height:22px;
  border-radius:0 3px 3px 0; background:var(--yellow);
}
.nav-group-label { display:flex; align-items:center; gap:12px; }
.nav-group-label svg { width:19px; }
.nav-group-chevron { width:14px; height:14px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; transition:transform 160ms ease; }
.nav-group.active .nav-group-chevron { transform:rotate(90deg); }
.nav-group-items { display:none; padding:2px 0 2px 14px; }
.nav-group-items.open { display:block; }
.nav-group-items .nav-link { min-height:38px; font-size:13px; padding-left:16px; }
.nav-group-items .nav-link svg { width:16px; opacity:.75; }
.site-link {
  display:flex; align-items:center; gap:8px; margin-top:18px; padding:9px 12px;
  border-top:1px solid rgba(255,255,255,.15); color:rgba(255,255,255,.72);
  font-size:13px; font-weight:600; text-decoration:none; transition:160ms ease;
}
.site-link:hover { color:white; }
.site-link svg { width:15px; }
.logout {
  display:flex; align-items:center; gap:8px; margin-top:8px; padding:9px 12px;
  color:rgba(255,255,255,.72); font-size:13px; font-weight:600; text-decoration:none; transition:160ms ease;
}
.logout:hover { color:white; background:rgba(255,255,255,.08); border-radius:11px; }
main { flex:1; min-width:0; width:100%; padding:38px 42px 60px; max-width:1520px; }
h1 {
  margin:0 0 9px; font:400 clamp(28px, 3.4vw, 42px)/1.15 "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing:-1.6px;
}
.eyebrow {
  display:flex; align-items:center; gap:8px; margin:0 0 8px;
  color:var(--teal-deep); font-size:11px; font-weight:800; letter-spacing:1.4px; text-transform:uppercase;
}
.eyebrow::before { content:""; width:18px; height:2px; background:currentColor; }
h2 { margin:34px 0 14px; font:400 23px/1.25 "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing:-.1px; }
.subhead { color:var(--muted); margin:0 0 26px; font-size:15px; line-height:1.6; max-width:680px; }
table { border-collapse:collapse; width:100%; table-layout:fixed; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-soft); }
th, td { text-align:left; padding:11px 14px; border-bottom:1px solid var(--line); vertical-align:top; word-wrap:break-word; overflow-wrap:break-word; }
th { background:#f1f5f5; font-size:11px; font-weight:800; text-transform:uppercase; letter-spacing:1px; color:var(--teal-deep); white-space:nowrap; }
tr:hover td { background:var(--teal-tint); }
tr:last-child td { border-bottom:0; }
td code { white-space:nowrap; }
td strong { white-space:nowrap; }
th.col-ua { width:32%; }
td.col-ua { font-size:11px; color:var(--muted); }
form.card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:24px; margin:18px 0; max-width:760px; box-shadow:var(--shadow-soft); }
form.card.compact { padding:20px 22px; max-width:560px; }
label { display:block; font-weight:700; margin:14px 0 5px; font-size:13px; }
label.inline { display:inline-flex; align-items:center; gap:7px; font-weight:500; margin:0 18px 0 0; }
input[type=text], input[type=password], input[type=number], input[type=date], textarea, select {
  width:100%; padding:9px 11px; border:1px solid #cfd6d8; border-radius:10px; font:inherit; background:var(--surface); color:var(--ink);
}
input:focus, textarea:focus, select:focus { outline:2px solid rgba(98,187,185,.6); border-color:transparent; }
textarea { min-height:64px; font-family:ui-monospace, Menlo, monospace; font-size:13px; }
.row2 { display:flex; gap:14px; } .row2 > div { flex:1; }
.dash-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; align-items:start; }
.dash-grid h2 { margin-top:0; }
.dash-grid table { box-shadow:none; }
.dash-grid th, .dash-grid td { padding:8px 12px; font-size:13px; vertical-align:middle; }
.dash-grid td, .dash-grid th { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.dash-grid td code { font-size:12px; color:var(--muted); }
.dash-ip { color:var(--muted); font-size:11px; font-weight:500; margin-left:7px; }
.dash-grid .badge { padding:1px 8px; font-size:11px; }
.content-strip { margin:-10px 0 22px; font-size:13px; }
.content-strip a { color:var(--teal-deep); font-weight:600; text-decoration:none; }
.content-strip a:hover { text-decoration:underline; }
.hint { color:var(--muted); font-size:12px; margin-top:4px; }
button, .btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:42px;
  padding:0 17px; border:1px solid var(--ink); border-radius:11px; background:var(--ink);
  color:white; font:700 13px "PingFang SC", "Microsoft YaHei", sans-serif; cursor:pointer; text-decoration:none; margin-top:16px; transition:160ms ease;
}
button:hover, .btn:hover { transform:translateY(-1px); box-shadow:var(--shadow-soft); }
button.secondary, .btn.secondary { border-color:var(--line); background:var(--surface); color:var(--ink); }
button.danger, .btn.danger { border-color:var(--accent); background:var(--accent); }
button:disabled { opacity:.5; cursor:wait; transform:none; }
.actions a, .link-button { margin-right:12px; color:var(--teal-deep); font-size:13px; font-weight:600; text-decoration:none; }
.actions a:hover, .link-button:hover { text-decoration:underline; }
.inline-form { display:inline; margin:0; padding:0; }
.link-button { border:0; background:none; padding:0; cursor:pointer; }
.muted { color:var(--muted); font-size:13px; }
.badge { display:inline-block; background:#eef3f3; color:var(--teal-deep); border-radius:20px; padding:2px 10px; font-size:12px; font-weight:700; }
.ai-row-test-result { display:block; margin-top:6px; font-size:12px; }
.ai-row-test-result.ok { color:var(--teal-deep); }
.ai-row-test-result.failed { color:#a33333; }
.content-link { color:var(--ink); text-decoration:none; }
.content-link:hover { color:var(--teal-deep); text-decoration:underline; }
.cell-subtitle { display:block; margin-top:3px; color:var(--muted); font-size:11px; font-weight:500; }
.downloads-content-table th:first-child,
.downloads-content-table td:first-child { width:30%; }
.downloads-content-table th:nth-child(n+3),
.downloads-content-table td:nth-child(n+3) { width:9%; }
.downloads-events-table th:first-child,
.downloads-events-table td:first-child { width:27%; }
.downloads-events-table th:nth-child(4),
.downloads-events-table td:nth-child(4) { width:20%; }
.chip-row { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin:0; }
.dl-toolbar { display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap; margin:24px 0 18px; }
.tab-bar { display:flex; gap:2px; flex-wrap:wrap; border-bottom:2px solid var(--line); }
.tab {
  padding:9px 16px; margin-bottom:-2px; border-bottom:2px solid transparent;
  color:var(--muted); font-size:13.5px; font-weight:700; text-decoration:none; white-space:nowrap;
}
.tab:hover { color:var(--teal-deep); }
.tab.active { color:var(--teal-deep); border-bottom-color:var(--teal-deep); }
.chip {
  display:inline-flex; align-items:center; padding:5px 13px; border-radius:999px;
  border:1px solid var(--line); background:var(--surface); color:var(--muted);
  font-size:12px; font-weight:700; text-decoration:none; white-space:nowrap;
}
.chip:hover { color:var(--teal-deep); border-color:var(--teal-deep); }
.chip.active { background:var(--teal-deep); border-color:var(--teal-deep); color:#fff; }
.settings-card { padding:0; }
.settings-card > summary { display:flex; align-items:baseline; gap:10px; padding:16px 20px; cursor:pointer; list-style:none; }
.settings-card > summary::-webkit-details-marker { display:none; }
.settings-card > summary::after { content:"展开"; margin-left:auto; color:var(--teal-deep); font-size:12px; font-weight:700; }
.settings-card[open] > summary::after { content:"收起"; }
.settings-card > summary small { color:var(--muted); font-weight:400; font-size:12px; }
.settings-card .settings-body { display:grid; gap:4px; padding:4px 20px 18px; }
.settings-card .settings-body form + form { border-top:1px dashed var(--line); padding-top:14px; }
.list-head-actions { display:flex; align-items:center; gap:12px; }
.notice {
  margin:16px 0 0; padding:12px 16px; border:1px solid #bfe3cd; border-radius:var(--radius-sm);
  background:#e9f7ee; color:#176b45; font-size:13px; font-weight:600;
}
.share-bar { height:4px; min-width:60px; margin-top:7px; border-radius:99px; background:#e8ecec; overflow:hidden; }
.share-bar span { display:block; height:100%; border-radius:99px; background:var(--teal-deep); }
.switch-row { display:flex; align-items:center; justify-content:space-between; gap:16px; cursor:pointer; }
.switch-row span:first-child { display:grid; gap:4px; }
.switch-row small { color:var(--muted); font-weight:400; font-size:12px; }
.switch-row input { position:absolute; opacity:0; pointer-events:none; }
.switch { position:relative; width:46px; height:26px; flex:none; border-radius:999px; background:#cdd5d8; transition:160ms ease; }
.switch::after { content:""; position:absolute; top:3px; left:3px; width:20px; height:20px; border-radius:50%; background:#fff; box-shadow:0 1px 3px rgba(0,0,0,.25); transition:160ms ease; }
.switch-row input:checked + .switch { background:var(--teal-deep); }
.switch-row input:checked + .switch::after { transform:translateX(20px); }
.stat-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:14px; margin:20px 0; }
.stat-grid .stat-card { background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-sm); padding:18px 16px; }
.stat-grid .stat-card strong { display:block; font-size:26px; letter-spacing:-.02em; }
.stat-grid .stat-card span { color:var(--muted); font-size:12px; }
.filter-inline { display:flex; align-items:center; gap:14px; margin:14px 0; flex-wrap:wrap; }
.filter-inline label { display:flex; align-items:center; gap:7px; color:var(--muted); font-size:12px; font-weight:600; }
.filter-inline select { min-height:32px; padding:0 8px; border:1px solid var(--line); border-radius:8px; background:var(--surface); color:var(--ink); font-size:12.5px; }
.btn-small { padding:6px 12px; font-size:12px; }
.btn.disabled { opacity:.45; pointer-events:none; }
.pagination {
  display:flex; align-items:center; justify-content:center; gap:14px; margin:18px 0 30px;
  color:var(--muted); font-size:12px; font-weight:650;
}
.pagination .btn { margin:0; }
.sort-link { color:var(--teal-deep); text-decoration:none; white-space:nowrap; }
.sort-link:hover { text-decoration:underline; }
.visits-page { width:100%; max-width:1320px; }
.visits-toolbar {
  display:grid; grid-template-columns:minmax(230px,1.4fr) repeat(3,minmax(145px,.72fr)) auto auto;
  align-items:end; gap:12px; margin:20px 0 30px; padding:16px;
  border:1px solid var(--line); border-radius:var(--radius); background:rgba(255,255,255,.68);
  box-shadow:0 3px 12px rgba(0,28,42,.04);
}
.visits-toolbar label { display:grid; gap:6px; min-width:0; margin:0; color:var(--muted); font-size:11px; font-weight:750; }
.visits-toolbar label > span { white-space:nowrap; }
.visits-toolbar input,
.visits-toolbar select {
  width:100%; height:40px; min-width:0; padding:0 11px; border:1px solid #cfd6d8;
  border-radius:10px; background:var(--surface); color:var(--ink); font-size:13px;
}
.visits-toolbar input:focus,
.visits-toolbar select:focus { outline:2px solid rgba(98,187,185,.6); border-color:transparent; }
.visits-toolbar .btn { height:40px; min-height:40px; margin:0; padding:0 14px; white-space:nowrap; }
.visits-list-head { display:flex; align-items:end; justify-content:space-between; gap:20px; margin:0 0 12px; }
.visits-list-head h2 { margin:0; }
.visits-list-head > span { color:var(--muted); font-size:12px; }
.visits-table-shell {
  width:100%; overflow:auto; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--surface); box-shadow:var(--shadow-soft);
}
.visits-table { min-width:980px; border:0; border-radius:0; box-shadow:none; table-layout:fixed; }
.visits-table .col-ip { width:15%; }
.visits-table .col-location { width:25%; }
.visits-table .col-client { width:27%; }
.visits-table .col-login { width:9%; }
.visits-table .col-count { width:11%; }
.visits-table .col-seen { width:13%; }
.visits-table th,
.visits-table td { padding:14px 16px; vertical-align:middle; overflow-wrap:normal; word-wrap:normal; }
.visits-table th { position:sticky; top:0; z-index:2; }
.ip-cell code { font-size:13px; font-weight:700; font-variant-numeric:tabular-nums; }
.location-cell { min-width:0; }
.location-primary,
.location-cell small { display:block; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.location-primary { font-size:13.5px; font-weight:700; }
.location-cell small { margin-top:3px; color:var(--muted); font-size:11.5px; }
.proxy-note {
  display:inline-flex; margin-top:7px; padding:2px 7px; border-radius:999px;
  background:#fff4df; color:#8a5a00; font-size:10px; font-weight:750;
}
.client-details { min-width:0; }
.client-details summary {
  display:grid; grid-template-columns:max-content minmax(0,1fr); align-items:center; gap:8px;
  min-width:0; list-style:none; cursor:pointer;
}
.client-details summary::-webkit-details-marker { display:none; }
.client-details summary::after { content:"展开"; grid-column:2; color:var(--teal-deep); font-size:10px; font-weight:700; }
.client-details[open] summary::after { content:"收起"; }
.client-pill {
  display:inline-flex; align-items:center; min-height:24px; padding:2px 8px; border-radius:999px;
  background:#eaf4f3; color:var(--teal-deep); font-size:10.5px; font-weight:750; white-space:nowrap;
}
.client-pill.bot { background:#fff0e4; color:#9b421e; }
.client-pill.unknown { background:#f0f0f0; color:var(--muted); }
.client-summary { overflow:hidden; color:var(--ink); font-size:12px; font-weight:650; text-overflow:ellipsis; white-space:nowrap; }
.ua-detail {
  margin-top:9px; padding:9px 10px; border-radius:8px; background:#f5f7f7;
  color:var(--muted); font-size:10px; line-height:1.5;
}
.ua-detail strong { display:block; margin-bottom:3px; color:var(--teal-deep); font-size:9px; letter-spacing:.7px; text-transform:uppercase; }
.ua-detail code { display:block; white-space:normal; word-break:break-all; }
.login-pill {
  display:inline-flex; padding:3px 8px; border-radius:999px; background:#f0f1f1;
  color:var(--muted); font-size:10.5px; font-weight:700; white-space:nowrap;
}
.login-pill.logged { background:#e8f5ef; color:#176b45; }
.download-user-name { display:block; margin-top:4px; font-size:12px; font-weight:700; overflow-wrap:anywhere; }
.count-cell { font-variant-numeric:tabular-nums; }
.count-cell strong { font-size:16px; }
.count-cell small { margin-left:3px; color:var(--muted); font-size:10px; }
.seen-cell time { display:grid; gap:1px; font-variant-numeric:tabular-nums; white-space:nowrap; }
.seen-cell time span { font-size:12px; font-weight:650; }
.seen-cell time small { color:var(--muted); font-size:11px; }
.empty-table { padding:48px 20px !important; color:var(--muted); text-align:center; }
@media (max-width:1100px) {
  main { padding:30px 26px 50px; }
  .visits-toolbar { grid-template-columns:repeat(2,minmax(180px,1fr)); }
  .visits-toolbar .btn { width:100%; }
}
.flash { background:var(--teal-tint); border:1px solid #cfe4e3; color:var(--teal-deep); padding:12px 16px; border-radius:var(--radius-sm); margin-bottom:16px; font-weight:600; }
.error { background:#fdeeee; border:1px solid #e8b4b4; color:#7a2626; padding:12px 16px; border-radius:var(--radius-sm); margin-bottom:16px; font-weight:600; }
.stat-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(160px, 1fr)); gap:15px; margin-bottom:28px; }
.stat { background:rgba(255,255,255,.55); border:1px solid var(--line); border-radius:var(--radius); padding:18px 20px; }
.stat b { display:block; font:750 30px/1 "PingFang SC", sans-serif; }
.stat span { color:var(--muted); font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:.6px; }
pre.log { background:#00293d; color:#cdeccd; padding:16px; border-radius:var(--radius-sm); overflow:auto; max-height:420px; font-size:12px; line-height:1.55; }
.vocab-row, .line-row { display:flex; gap:8px; margin-bottom:8px; align-items:center; }
.vocab-row input { width:100%; }
.vocab-row .term { max-width:160px; } .vocab-row .phon { max-width:130px; }
.vocab-row .time { max-width:90px; }
.line-row .idx { width:44px; text-align:center; background:#eef3f3; border-radius:8px; line-height:2.3; font-weight:700; color:var(--teal-deep); }
.line-row .time { max-width:100px; }
.add-row {
  background:none; border:1px dashed #b6c1c4; color:var(--muted); padding:5px 14px;
  border-radius:10px; cursor:pointer; margin-top:6px; font-size:13px; font-weight:600; min-height:34px;
}
.add-row:hover { border-color:var(--teal); color:var(--teal-deep); background:var(--teal-tint); transform:none; box-shadow:none; }
a.back { color:var(--teal-deep); text-decoration:none; font-size:13px; font-weight:700; display:inline-flex; align-items:center; gap:6px; margin-bottom:16px; }
a.back:hover { text-decoration:underline; }

/* Console 252: clear hierarchy, quiet surfaces and a complete mobile menu. */
:root{--paper:#f8f7f4;--surface:#fff;--ink:#23343e;--muted:#66717a;--line:#e5e3de;--accent:#b54a31;--accent-dark:#983821;--teal-deep:#884522;--teal:#eacbb3;--teal-tint:#fcf1e8;--shadow-soft:0 2px 10px rgba(40,35,25,.025);--shadow:0 18px 50px rgba(40,35,25,.09);--radius:16px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif}
body{background:var(--paper);font-size:14px;line-height:1.65}[hidden]{display:none!important}a{color:var(--teal-deep)}button,.btn{font-family:inherit;transition:background .15s;min-height:42px;box-shadow:none}button:hover,.btn:hover{transform:none;box-shadow:none}button:disabled{cursor:not-allowed}button.danger,.btn.danger{background:#fff0eb;color:#ad3b26;border-color:#efcfc5}.link-button{min-height:36px;margin:0}.actions{white-space:normal}.actions .link-button{color:#a7402b}button:not(.secondary):not(.link-button):not(.nav-open):not(.nav-close):not(.nav-scrim){background:var(--teal-deep);border-color:var(--teal-deep)}.btn:not(.secondary){background:var(--teal-deep);border-color:var(--teal-deep)}.skip-link{position:fixed;z-index:100;top:-80px;left:12px;background:white;padding:12px}.skip-link:focus{top:12px}.layout{display:flex}.workspace{flex:1;min-width:0}.sidebar{width:236px;height:100dvh;flex-direction:column;background:white;color:var(--ink);border-right:1px solid var(--line);padding:24px 16px 16px;overflow-y:auto;overflow-x:hidden;gap:0}.sidebar .brand{display:flex;margin:0 8px 25px;text-decoration:none;color:var(--ink);gap:10px;font-size:21px;font-weight:800}.brand img{border-radius:9px}.brand small{display:block;font-size:10px;font-weight:600;color:var(--muted);letter-spacing:1.5px}.sidebar nav{flex:1}.nav-link,.nav-group-items .nav-link{color:var(--muted);font-size:13px;min-height:42px;border-radius:10px;gap:11px;padding:0 12px}.nav-link:hover{background:#f6f5f2;color:var(--ink)}.nav-link.active{background:var(--teal-tint);color:var(--teal-deep);box-shadow:none;font-weight:750}.nav-link.active::before{display:none}.nav-link svg{width:18px}.nav-section{margin:15px 0}.nav-section summary{display:flex;align-items:center;justify-content:space-between;color:#69737b;font-size:11px;font-weight:750;letter-spacing:.4px;cursor:pointer;list-style:none;min-height:32px;padding:0 12px}.nav-section summary::-webkit-details-marker{display:none}.nav-section summary span{font-size:15px;transition:transform .2s}.nav-section[open] summary span{transform:rotate(180deg)}.nav-section>.nav-link{margin-top:3px}.sidebar-footer{border-top:1px solid var(--line);padding-top:12px;margin-top:12px}.sidebar-footer .site-link,.sidebar-footer .logout{color:var(--muted);border:0;margin:4px 0;padding:6px 12px;width:auto;font-size:12px}.sidebar-footer .site-link:hover,.sidebar-footer .logout:hover{color:var(--ink);background:#f6f5f2}.sidebar-footer form{margin:0}.admin-topbar{height:76px;display:flex;align-items:center;gap:16px;padding:0 38px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.93);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.admin-topbar>div{display:grid;line-height:1.4;gap:2px}.admin-topbar span{font-size:10px;color:var(--muted)}.admin-topbar strong{font-size:14px;font-weight:650}.topbar-home{margin-left:auto;color:var(--muted);text-decoration:none;font-size:12px}.nav-open,.nav-close,.nav-scrim{display:none}main{max-width:1480px;margin:auto;padding:32px 38px 48px}main:focus{outline:none}h1{font-family:inherit;font-size:28px;letter-spacing:-.6px;font-weight:750;line-height:1.35;margin-bottom:8px}h2{font-family:inherit;font-size:18px;letter-spacing:0;font-weight:700;margin:28px 0 12px}.subhead{font-size:13px;color:var(--muted);max-width:850px;margin-bottom:24px}.eyebrow{font-size:10px;letter-spacing:1px}.card,form.card,.card.compact,form.card.compact{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:22px;box-shadow:var(--shadow-soft)}form.card{max-width:1000px}.card.compact,form.card.compact{max-width:780px}.card h2:first-child{margin-top:0}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:14px;margin:22px 0 26px}.stat,.stat-grid .stat-card{padding:18px 20px;background:white;border:1px solid var(--line);border-radius:14px}.stat b,.stat-grid .stat-card strong{font-size:28px;font-weight:750;line-height:1.25;font-variant-numeric:tabular-nums}.stat span,.stat-card span{font-size:11px;font-weight:500;letter-spacing:0;display:block;margin-top:6px;color:var(--muted)}.row2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.row2>div{min-width:0}input:not([type=hidden]):not([type=checkbox]):not([type=radio]),textarea,select{width:100%;min-height:42px;border:1px solid #d6d7d3;border-radius:9px;padding:9px 11px;background:white;font:inherit;color:var(--ink)}input[readonly]{background:#f6f6f3!important;color:var(--muted)!important}label{font-weight:600;font-size:12px}textarea{line-height:1.7;min-height:90px;resize:vertical}.table-wrap,.visits-table-shell{width:100%;overflow:auto;overscroll-behavior-x:contain;border:1px solid var(--line);border-radius:14px;background:white;box-shadow:var(--shadow-soft);-webkit-overflow-scrolling:touch;margin:12px 0}.table-wrap table{min-width:var(--table-min,700px);border:0;border-radius:0;box-shadow:none}.table-wrap th{position:sticky;top:0;background:#fafaf7;z-index:1}.table-wrap td,.table-wrap th{padding:13px 16px;font-size:12px}.table-wrap th{font-weight:650;text-transform:none;letter-spacing:0;color:#69747c}.table-wrap td strong,.table-wrap td code{white-space:normal;overflow-wrap:anywhere;max-width:none}.table-wrap td{vertical-align:middle}.table-wrap tr:hover td{background:#fcfcfa}.table-wrap td:first-child{font-size:13px}.dash-grid .table-wrap table{min-width:480px}.dash-grid td,.dash-grid th{white-space:normal;text-overflow:clip;overflow:visible}.dash-grid td code{overflow-wrap:anywhere}.badge{font-size:10px;background:#f7ede5;color:#884522}.pagination{justify-content:space-between;gap:10px;font-size:12px}.flash,.notice{background:#edf7f2;border-color:#d3e8df;color:#28694f;font-size:13px}.error{background:#fff1ed;border-color:#f0d5cb;color:#9b3729;font-size:13px}.flash,.error{scroll-margin-top:96px}.admin-footer{padding:0 38px 24px;color:var(--muted);font-size:10px}.admin-toast{position:fixed;z-index:90;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 20px;background:var(--ink);color:white;border-radius:12px;box-shadow:var(--shadow);max-width:90vw}.filter-inline .btn{margin:0}.vocab-row,.line-row{display:grid;padding:14px;background:#fafaf8;border:1px solid var(--line);border-radius:12px;gap:10px;margin:10px 0}.vocab-row{grid-template-columns:2fr 1fr 1fr auto}.vocab-row .term,.vocab-row .phon,.vocab-row .time{max-width:none}.vocab-row input[name=vocab_definition],.vocab-row input[name=vocab_zh],.vocab-row input[name=vocab_example]{grid-column:1/-1}.line-row{grid-template-columns:34px 1fr 2fr auto}.line-row .time{max-width:none}.line-row input[name=line_speaker]{max-width:none!important}.line-row input[name=line_text],.line-row input[name=line_zh]{grid-column:1/-1}.line-row .add-row,.vocab-row .add-row{grid-column:4;grid-row:1;margin:0;min-width:38px}.line-row .idx{width:30px}.vocab-row input,.line-row input{min-width:0}.feedback-message{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;line-height:1.75}.feedback-details summary{cursor:pointer;color:var(--teal-deep);font-weight:600}.content-strip a{font-weight:600}.login-shell{display:grid;place-items:center;min-height:100dvh;padding:24px;background:radial-gradient(circle at 20% 0%,#fff0e3,transparent 50%),var(--paper)}.login-card{width:min(440px,100%);padding:36px;border:1px solid var(--line);background:white;border-radius:22px;box-shadow:var(--shadow)}.login-card .brand{margin-bottom:30px;text-decoration:none;color:var(--ink);font-size:24px;font-weight:800}.login-card h1{font-size:24px}.login-card .subhead{margin-bottom:26px}.login-card button[type=submit]{width:100%;margin-top:24px}.login-card .site-link{color:var(--muted);border:0;justify-content:center;font-size:12px}.login-card .password-row{display:flex;gap:8px}.password-row button{margin:0;flex:none}.login-card .error{margin-top:16px}details.editor-section{margin:18px 0;border:1px solid var(--line);border-radius:12px;padding:14px}details.editor-section>summary{font-size:15px;font-weight:650;cursor:pointer}.editor-actions{position:sticky;bottom:0;padding:14px 0;background:white;display:flex;gap:12px;border-top:1px solid var(--line)}.editor-actions button{margin:0}.editor-actions a{margin:0}.content-strip{line-height:2}.ai-row-test-result{overflow-wrap:anywhere}.list-head-actions{flex-wrap:wrap}.actions a{display:inline-block}.visits-toolbar{background:white;box-shadow:none}.visits-table-shell{margin-top:0}.stat-card strong{overflow-wrap:anywhere}.registration-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}.registration-grid>.card{margin:0;max-width:none}
@media(min-width:901px){.sidebar{display:flex;position:sticky}.nav-open,.nav-close{display:none}.sidebar .brand{font-size:21px}.sidebar .site-link,.sidebar .logout{display:flex}}
@media(max-width:1100px){main{padding:26px}.admin-topbar{padding:0 26px}.admin-footer{padding-inline:26px}.registration-grid{grid-template-columns:1fr}}
@media(max-width:900px){.layout{display:block}.sidebar{position:fixed;z-index:70;left:0;top:0;bottom:0;width:280px;height:100dvh;padding:24px 16px;display:flex;flex-direction:column;align-items:stretch;gap:0;transform:translateX(-100%);transition:transform .2s;background:white;border:0;overflow-x:hidden;overflow-y:auto}.sidebar .brand{margin:0 8px 20px;font-size:21px}.sidebar>.sidebar-footer{display:block;flex:none;margin-top:auto}.sidebar .site-link,.sidebar .logout{display:flex;padding:9px 12px;margin:4px 0;color:var(--muted);border:0}.nav-visible .sidebar{transform:translateX(0)}body.nav-visible{overflow:hidden}.nav-open{display:inline-flex;margin:0;min-width:40px;font-size:20px;min-height:40px;padding:0 10px}.nav-close{display:inline-flex;position:absolute;right:12px;top:20px;margin:0;font-size:22px;min-height:32px;min-width:32px;padding:0}.nav-scrim{display:block;position:fixed;z-index:60;inset:0;width:100%;height:100%;padding:0;margin:0;border:0;border-radius:0;background:rgba(20,28,35,.35);backdrop-filter:blur(2px)}.admin-topbar{height:66px;padding:0 20px}.sidebar .nav-link{font-size:13px;min-height:42px}.sidebar .nav-link svg{display:block}.admin-footer{padding:0 20px 22px}.sidebar .brand small{font-size:10px}.nav-section{margin:12px 0}.dash-grid{grid-template-columns:1fr}}
@media(max-width:600px){main{padding:24px 16px 32px}main h1{font-size:25px}.admin-topbar{padding:0 16px}.row2{grid-template-columns:1fr!important;gap:0}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat,.stat-grid .stat-card{padding:16px}.stat b,.stat-grid .stat-card strong{font-size:25px}.card,form.card,.card.compact,form.card.compact{padding:18px;max-width:100%}.table-wrap td strong,.table-wrap td code{display:inline;max-width:none;white-space:normal;overflow-wrap:anywhere}.table-wrap td,.table-wrap th{padding:12px}.subhead{font-size:12px}.visits-toolbar{grid-template-columns:1fr}.filter-inline{align-items:stretch;gap:10px}.pagination{flex-wrap:wrap}.login-shell{padding:18px}.login-card{padding:26px}.editor-actions{flex-wrap:wrap}.line-row{grid-template-columns:26px 1fr 1fr auto}.vocab-row{grid-template-columns:1.6fr 1fr 1fr auto}.line-row,.vocab-row{padding:10px;gap:6px}.line-row input,.vocab-row input{font-size:12px;padding:8px 7px}.admin-footer{padding:0 16px 22px}.topbar-home{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.filters{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:22px 0}.filters input{width:min(400px,100%)}.filters button,.filters .btn{margin:0}.danger-text{color:#ad3b26!important}
.table-wrap .feedback-table{min-width:760px;table-layout:fixed}.table-wrap .feedback-table td{vertical-align:top;white-space:normal;overflow-wrap:anywhere}.feedback-message.is-collapsed{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;max-height:5.25em}.feedback-toggle{color:var(--teal-deep);padding:4px 0;text-align:left}

/* Navigation 285: keep the current group and page visible in both menu sizes. */
.sidebar nav { min-height:0; overflow-y:auto; overscroll-behavior:contain; padding:3px; margin:-3px; }
.sidebar-footer { flex-shrink:0; }
.nav-section { margin:8px 0; }
.nav-section > summary {
  gap:10px; min-height:44px; padding:9px 12px; border-radius:10px;
  color:var(--muted); font-size:13px; font-weight:650; letter-spacing:0;
}
.nav-section > summary:hover { background:#f6f5f2; color:var(--ink); }
.nav-section > summary svg { width:18px; height:18px; flex-shrink:0; }
.nav-section > summary span,
.nav-section[open] > summary span { font-size:inherit; transform:none; transition:none; }
.nav-section-label { flex:1; min-width:0; display:grid; gap:2px; }
.nav-section > summary .nav-chevron { width:16px; height:16px; transition:transform .15s; }
.nav-section[open] > summary .nav-chevron { transform:rotate(180deg); }
.nav-section.has-current > summary { background:#fcf1e8; color:#884522; }
.nav-section > summary .nav-current {
  font-size:11px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.nav-section[open] .nav-current { display:none; }
.nav-section-items { margin:5px 0 3px 20px; padding-left:8px; border-left:1px solid var(--line); }
.nav-section-items .nav-link { margin:3px 0; font-weight:500; gap:9px; }
.nav-link svg { flex-shrink:0; height:18px; }
.sidebar .nav-link { min-height:44px; }
.sidebar .nav-link.active {
  background:#f8e2d2; color:#753917; font-weight:750; box-shadow:inset 0 0 0 1px #edc7aa;
}
.sidebar .nav-link.active::before {
  display:block; left:0; height:22px; width:3px; border-radius:0 3px 3px 0; background:#884522;
}
.sidebar .nav-link.active::after {
  content:""; margin-left:auto; flex-shrink:0; width:6px; height:6px; border-radius:50%; background:#884522;
}
.sidebar :focus-visible { outline:2px solid #884522; outline-offset:1px; }
.admin-breadcrumb { display:flex; align-items:center; flex-wrap:wrap; gap:10px; min-width:0; }
.admin-breadcrumb > span { font-size:13px; }
.admin-breadcrumb > strong { color:var(--ink); font-size:14px; font-weight:750; }
.admin-breadcrumb .breadcrumb-separator { color:#a9aaa5; }
.topbar-home { flex-shrink:0; }
@media(max-width:600px) {
  .admin-topbar { gap:10px; }
  .admin-breadcrumb { gap:5px; }
  .admin-breadcrumb > span { font-size:11px; }
  .admin-breadcrumb > strong { font-size:13px; }
  .topbar-home { display:none; }
}

.dash-grid>div{min-width:0}.dash-grid{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:900px){.dash-grid{grid-template-columns:minmax(0,1fr)}}