:root {
  --bg: #f4f6fa;
  --panel: #ffffff;
  --ink: #1c2433;
  --muted: #6b7485;
  --line: #e2e7ef;
  --brand: #2457d6;
  --brand-soft: #e8eefe;
  --danger: #c73545;
  --ok: #1f7a4d;
  --warn: #9a6410;
  --shadow: 0 1px 2px rgba(20, 30, 55, .05), 0 8px 24px rgba(20, 30, 55, .05);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; min-height: 100%; }
body {
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
}
h1, h2, h3 { margin: 0; line-height: 1.3; }
h1 { font-size: 22px; }
h2 { font-size: 21px; }
h3 { font-size: 15px; }
p { margin: 0; }
a { color: var(--brand); }
.muted { color: var(--muted); font-size: 13px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 24px; background: #151c2b; color: #fff;
}
.brand { display: flex; align-items: baseline; gap: 10px; font-weight: 600; font-size: 16px; }
.brand-mark { color: #7ea2ff; font-size: 20px; }
.brand .muted { color: #9aa6bd; margin-left: 4px; }
.topbar-actions { display: flex; gap: 8px; }
.topbar .ghost { color: #dce3f1; border-color: #3a465e; }
.topbar .ghost:hover { background: #232d42; }
.topbar .danger-text { color: #ffb5bd; }

.tabs {
  display: flex; gap: 4px; padding: 0 20px; background: #fff;
  border-bottom: 1px solid var(--line); overflow-x: auto;
  position: sticky; top: 0; z-index: 5;
}
.tab-btn {
  appearance: none; border: 0; background: transparent; color: var(--muted);
  padding: 13px 14px 11px; font: inherit; cursor: pointer;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }

.page { max-width: 1280px; margin: 0 auto; padding: 24px 20px 64px; }
.tab-panel { animation: fade-in .12s ease-out; }
@keyframes fade-in { from { opacity: .6; } to { opacity: 1; } }
.section-head { display: flex; justify-content: space-between; margin-bottom: 18px; }
.section-head p { margin-top: 4px; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px; margin-bottom: 18px; box-shadow: var(--shadow);
}
.panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.stack { display: flex; flex-direction: column; gap: 8px; }
.stack-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 9px 11px; background: #f8fafc; border: 1px solid var(--line); border-radius: 8px;
}
.stack-row .name { font-weight: 600; word-break: break-all; }

.stat-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 18px; }
.stat-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 15px 16px; box-shadow: var(--shadow);
}
.stat-label { display: block; color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.stat-card strong { font-size: 26px; font-weight: 650; letter-spacing: -.02em; }

.form-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.form-grid label { display: flex; flex-direction: column; gap: 5px; font-size: 12px; color: var(--muted); }
.form-grid .wide { grid-column: 1 / -1; }
.form-grid .check-label { flex-direction: row; align-items: center; gap: 7px; font-size: 13px; color: var(--ink); padding-top: 20px; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 8px; }
.form-error { color: var(--danger); font-size: 12px; min-height: 0; }

input, select, textarea {
  width: 100%; border: 1px solid #ccd4e1; border-radius: 8px;
  background: #fff; color: var(--ink); padding: 8px 10px; font: inherit;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: #7d9cf0; box-shadow: 0 0 0 3px rgba(36, 87, 214, .12);
}
textarea { resize: vertical; font-size: 13px; line-height: 1.6; }
input[type="checkbox"] { width: 15px; height: 15px; margin: 0; accent-color: var(--brand); }

button {
  border: 1px solid #ccd4e1; background: #fff; color: var(--ink);
  border-radius: 8px; padding: 7px 13px; font: inherit; cursor: pointer;
}
button:hover { background: #f3f6fb; }
button:disabled { opacity: .55; cursor: wait; }
button.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
button.primary:hover { background: #1c49b8; }
button.ghost { background: transparent; }
button.small { padding: 4px 9px; font-size: 12px; border-radius: 6px; }
button.link { border: 0; background: transparent; color: var(--brand); padding: 4px 6px; }
button.link.danger { color: var(--danger); }

.filter-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: 9px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px; margin-bottom: 14px; box-shadow: var(--shadow);
}
.filter-bar input { max-width: 320px; }
.filter-bar select { width: auto; min-width: 120px; }

.table-wrap {
  overflow-x: auto; background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; white-space: nowrap; font-size: 12px; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fafbfe; }
td .cell-title { font-weight: 600; word-break: break-all; }
td .cell-sub { color: var(--muted); font-size: 12px; margin-top: 2px; word-break: break-all; }
td .cell-clip { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.empty-cell { color: var(--muted); text-align: center; padding: 26px 12px; }

.badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  font-size: 11px; line-height: 1.7; white-space: nowrap;
  background: #edf1f7; color: #586273;
}
.badge.ok { background: #e4f5eb; color: var(--ok); }
.badge.warn { background: #fbf1dd; color: var(--warn); }
.badge.bad { background: #fbe7e9; color: var(--danger); }
.badge.brand { background: var(--brand-soft); color: var(--brand); }

.messages-panel { margin-top: 18px; }
.messages-list {
  display: flex; flex-direction: column; gap: 10px; max-height: 62vh;
  overflow-y: auto; padding: 4px 2px;
}
.message {
  border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
  background: #fbfcfe; max-width: 88%;
}
.message.assistant { align-self: flex-end; background: var(--brand-soft); border-color: #d4defb; }
.message.other { background: #f4f5f7; }
.message-meta { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); font-size: 11px; margin-bottom: 4px; }
.message-text { white-space: pre-wrap; word-break: break-word; font-size: 13.5px; }

.login-body {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(900px 500px at 50% -10%, #dfe8ff 0%, var(--bg) 60%);
}
.login-card {
  width: min(380px, 100%); background: var(--panel); border: 1px solid var(--line);
  border-radius: 16px; padding: 30px 28px; box-shadow: 0 18px 50px rgba(25, 40, 80, .12);
}
.login-card h1 { margin-bottom: 2px; }
.login-card .muted { margin-bottom: 22px; }
.login-card label { display: block; margin: 13px 0 5px; font-size: 12px; color: var(--muted); }
.login-card button { width: 100%; margin-top: 20px; padding: 9px; }
.form-error { margin-top: 10px; color: var(--danger); font-size: 12px; min-height: 18px; }

.toast {
  position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%);
  background: #1b2435; color: #fff; padding: 9px 16px; border-radius: 9px;
  font-size: 13px; box-shadow: 0 8px 30px rgba(0,0,0,.2); z-index: 50;
  max-width: calc(100vw - 40px);
}
.toast.error { background: #8f2331; }

@media (max-width: 1000px) {
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .page { padding: 18px 12px 48px; }
  .topbar { padding: 12px 14px; }
  .tabs { padding: 0 6px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .wide, .form-actions { grid-column: auto; }
  .form-grid .check-label { padding-top: 2px; }
  .filter-bar input { max-width: none; flex: 1 1 100%; }
  .message { max-width: 100%; }
}
.row-actions { display: flex; gap: 2px; flex-wrap: wrap; align-items: center; }
.row-badges { display: flex; gap: 5px; flex-wrap: wrap; justify-content: flex-end; }