:root {
  --primary: #5974f5;
  --primary-soft: #eef1ff;
  --ink: #1c2434;
  --ink-2: #5a6478;
  --ink-3: #8b94a7;
  --line: #e7eaf2;
  --bg: #f6f7fb;
  --card: #ffffff;
  --warn: #d9822b;
  --warn-soft: #fff4e6;
  --danger: #c94b4b;
  --ok: #2f8f6b;
  --ok-soft: #e9f7f1;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(28,36,52,.04), 0 8px 24px rgba(28,36,52,.05);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--ink); min-height: 100vh;
  font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
.icon-defs { position: absolute; width: 0; height: 0; }
svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
a { color: var(--primary); text-decoration: none; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 22px; font-weight: 650; letter-spacing: -.3px; }
h2 { font-size: 15px; font-weight: 650; }
button, input, textarea, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.btn {
  display: inline-flex; align-items: center; gap: 7px; justify-content: center;
  padding: 8px 14px; border: 1px solid var(--line); background: #fff; color: var(--ink-2);
  border-radius: 9px; cursor: pointer; white-space: nowrap; transition: .15s;
}
.btn:hover { border-color: #cdd4ee; color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: #4a63e0; color: #fff; }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn.ghost { background: transparent; border-color: transparent; }
.icon-btn { background: transparent; border: 0; color: var(--ink-3); cursor: pointer; padding: 7px; border-radius: 8px; }
.icon-btn:hover { background: var(--primary-soft); color: var(--primary); }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.hint { color: var(--ink-3); font-size: 12px; line-height: 1.7; }
.sub { color: var(--ink-3); font-size: 12px; margin-top: 3px; }
.msg { font-size: 12px; color: var(--danger); min-height: 18px; margin-top: 10px; }

/* gate */
.gate { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; background: radial-gradient(900px 500px at 50% -10%, #e9edff 0%, var(--bg) 70%); }
.gate-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 30px; box-shadow: var(--shadow); }
.gate-card h2 { margin: 22px 0 16px; }
.gate-lead { color: var(--ink-2); font-size: 13px; margin-top: 14px; }
.gate-about { display: block; margin-top: 18px; font-size: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 680; letter-spacing: .2px; }
.brand small { display: block; font-size: 10px; font-weight: 500; color: var(--ink-3); letter-spacing: 1px; line-height: 1.1; }
.brand-mark { width: 30px; height: 30px; border-radius: 9px; background: var(--primary); color: #fff; display: grid; place-items: center; font-size: 17px; font-weight: 700; }

label { display: block; font-size: 12px; color: var(--ink-2); margin: 12px 0; }
input, textarea, select {
  display: block; width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: 9px; background: #fff; outline: none; transition: .15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
textarea { resize: vertical; }
.gate-card .btn { width: 100%; margin-top: 8px; }

/* layout */
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 20px; padding: 12px 24px; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.tabs { display: flex; gap: 3px; flex: 1; min-width: 0; overflow-x: auto; }
.tab { display: inline-flex; align-items: center; gap: 6px; padding: 8px 13px; border: 0; background: transparent; color: var(--ink-3); border-radius: 9px; cursor: pointer; white-space: nowrap; }
.tab:hover { background: var(--bg); color: var(--ink-2); }
.tab.active { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.top-actions { display: flex; align-items: center; gap: 6px; }
main { max-width: 1180px; margin: 0 auto; padding: 24px 24px 60px; }
.section-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.group-title { margin: 26px 0 12px; display: flex; align-items: center; gap: 9px; color: var(--ink-2); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 600; line-height: 1.6; }
.badge.muted { background: var(--bg); color: var(--ink-3); font-weight: 500; }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.info { background: var(--primary-soft); color: var(--primary); }
.foot { text-align: center; color: var(--ink-3); font-size: 11px; padding: 0 24px 30px; }

.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 18px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.panel .btn { margin-top: 8px; }
.feed-panel { border-color: #cfd7ff; }
.two-col, .people-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: start; }
.two-col > .panel { margin-bottom: 0; }
.people-columns > div { min-width: 0; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 12px; align-items: start; }
.people-columns .card-grid { grid-template-columns: minmax(0, 1fr); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 15px 16px; box-shadow: var(--shadow); min-width: 0; }
.card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.card h3 { font-size: 14px; font-weight: 650; line-height: 1.5; word-break: break-word; }
.card .meta { color: var(--ink-3); font-size: 12px; margin-top: 6px; line-height: 1.7; }
.card .kv { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; padding: 3px 0; color: var(--ink-2); }
.card .kv span:last-child { color: var(--ink); text-align: right; word-break: break-all; }
.card-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; padding-top: 11px; border-top: 1px solid var(--line); }
.card-accent { border-left: 3px solid var(--primary); }
.card-accent.warn { border-left-color: var(--warn); }
.card-accent.ok { border-left-color: var(--ok); }
.empty { grid-column: 1 / -1; padding: 26px; text-align: center; color: var(--ink-3); border: 1px dashed var(--line); border-radius: var(--radius); background: rgba(255,255,255,.6); font-size: 13px; }
.draft-text { white-space: pre-wrap; background: var(--bg); border-radius: 9px; padding: 10px 12px; font-size: 12px; color: var(--ink-2); margin-top: 10px; max-height: 190px; overflow: auto; }
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.chip { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 20px; background: var(--bg); border: 1px solid var(--line); font-size: 12px; color: var(--ink-2); }
.chip button { border: 0; background: transparent; color: var(--ink-3); cursor: pointer; padding: 0; line-height: 1; }
.code { background: #1e2536; color: #d9e0f5; border-radius: 9px; padding: 11px 13px; font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; word-break: break-all; max-height: 220px; overflow: auto; margin-top: 12px; }
.state-box { background: var(--bg); border-radius: 9px; padding: 12px; font-size: 12px; color: var(--ink-2); margin-bottom: 12px; }
.log { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); max-height: 320px; overflow: auto; }
.log-row { display: flex; gap: 10px; align-items: center; padding: 8px 14px; border-bottom: 1px solid var(--line); font-size: 12px; }
.log-row:last-child { border-bottom: 0; }
.log-row .ts { color: var(--ink-3); font-family: ui-monospace, monospace; flex: none; }
.log-row .reason { color: var(--ink-3); margin-left: auto; text-align: right; }
.toast { position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%); background: #1e2536; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 13px; z-index: 50; box-shadow: 0 8px 30px rgba(0,0,0,.18); max-width: 90vw; }

/* dynamic form */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.form-grid .full { grid-column: 1 / -1; }
.checks { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 7px; }
.checks label { display: inline-flex; align-items: center; gap: 5px; margin: 0; font-size: 12px; }
.checks input { width: auto; margin: 0; }

@media (max-width: 860px) {
  .two-col, .people-columns { grid-template-columns: minmax(0, 1fr); }
  .topbar { flex-wrap: wrap; padding: 10px 14px; gap: 10px; }
  .tabs { order: 3; width: 100%; flex: none; }
  .top-actions { margin-left: auto; }
  main { padding: 18px 14px 50px; }
  .form-grid { grid-template-columns: minmax(0, 1fr); }
  .card-grid { grid-template-columns: minmax(0, 1fr); }
}