:root {
  --bg: #f3f7fb;
  --card: #ffffff;
  --primary: #2f80ed;
  --primary-dark: #1b6fd1;
  --teal: #0d9b9b;
  --text: #1f2a37;
  --muted: #6b7c93;
  --line: #e6eef7;
  --ok: #2bb673;
  --danger: #e25555;
  --sidebar: #edf4ff;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: inherit; text-decoration: none; }
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  padding: 20px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px 18px;
}
.brand-logo {
  width: 36px; height: 36px; border-radius: 10px;
  object-fit: contain; background: #fff;
  border: 1px solid var(--line); flex-shrink: 0;
}
.login-brand {
  display: block; margin: 0 auto 12px;
  width: 56px; height: 56px; border-radius: 14px;
  object-fit: contain; background: #fff;
  border: 1px solid var(--line);
}
.brand strong { display: block; font-size: 15px; }
.brand span { color: var(--muted); font-size: 12px; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px; border-radius: 12px; color: #44556c;
  margin-bottom: 6px; font-size: 14px;
}
.nav a.active, .nav a:hover {
  background: var(--primary); color: #fff;
}
.main { flex: 1; padding: 22px 28px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 18px;
}
.topbar h1 { margin: 0; font-size: 22px; }
.userbox { color: var(--muted); font-size: 13px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 8px 24px rgba(31, 86, 160, 0.05);
}
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}
.stat {
  background: #fff; border-radius: 16px; padding: 18px;
  border: 1px solid var(--line);
}
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 28px; font-weight: 700; margin-top: 8px; color: var(--primary); }
.toolbar {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; align-items: center;
}
.toolbar input, .toolbar select, .form input, .form select, .form textarea {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  background: #f8fbff;
  color: var(--text);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: none; border-radius: 999px; padding: 10px 16px;
  background: var(--primary); color: #fff; cursor: pointer; font-size: 14px;
}
.btn:hover { background: var(--primary-dark); }
.btn.secondary { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn.danger { background: var(--danger); }
.btn.ghost { background: transparent; color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; vertical-align: top; }
th { color: var(--muted); font-weight: 600; background: #f7faff; }
.tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  border: 1px solid #b7d4ff; color: var(--primary); background: #eef5ff; font-size: 12px;
}
.tag.off { border-color: #ddd; color: #888; background: #f5f5f5; }
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
.form-grid .full { grid-column: 1 / -1; }
.form label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.form input, .form select, .form textarea { width: 100%; }
.form textarea { min-height: 90px; resize: vertical; }
.error {
  background: #fff1f1; color: var(--danger); padding: 10px 12px;
  border-radius: 10px; margin-bottom: 12px;
}
.success {
  background: #eefbf4; color: var(--ok); padding: 10px 12px;
  border-radius: 10px; margin-bottom: 12px;
}
.login-wrap {
  min-height: 100vh; display: grid; place-items: center;
  background: linear-gradient(180deg, #d8f3ee, #f3fafb 40%, #fff);
}
.login-card {
  width: 420px; background: #fff; border-radius: 20px; padding: 28px;
  box-shadow: 0 16px 40px rgba(13, 155, 155, 0.12);
}
.login-card h1 { margin: 0 0 8px; font-size: 24px; }
.login-card p { margin: 0 0 20px; color: var(--muted); }
.subject-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  background: #eefaf4; padding: 16px; border-radius: 16px;
}
.subject-item {
  background: #fff; border-radius: 14px; padding: 14px;
  border: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
}
.muted { color: var(--muted); font-size: 12px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pager {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap; margin-top: 16px; padding-top: 12px;
  border-top: 1px solid var(--line);
}
.pager-links { display: flex; gap: 8px; flex-wrap: wrap; }
.btn.disabled, .btn.ghost.disabled {
  opacity: 0.45; pointer-events: none; cursor: default;
  border: 1px solid var(--line); color: var(--muted); background: #f7f9fc;
}
.version-hero { margin-bottom: 16px; }
.version-hero-main {
  display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; flex-wrap: wrap;
}
.version-hero h2 { margin: 4px 0 8px; font-size: 24px; }
.eyebrow {
  margin: 0; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal);
}
.version-status {
  min-width: 220px; border-radius: 14px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.version-status.ok { background: #eefbf4; color: #1f7a55; border: 1px solid #cdeedc; }
.version-status.warn { background: #fff7eb; color: #9a6b16; border: 1px solid #f3e0b5; }
.version-layout {
  display: grid; grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.05fr); gap: 16px; align-items: start;
}
.version-publish h3, .version-history h3 { margin: 0 0 8px; font-size: 18px; }
.version-form .form-actions { margin-top: 8px; }
.check-row {
  display: flex !important; align-items: flex-start; gap: 10px;
  background: #f7fbff; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
}
.check-row input { width: auto; margin-top: 3px; }
.field-hint { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; }
.version-history-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 12px;
}
.version-list { display: flex; flex-direction: column; gap: 12px; max-height: 70vh; overflow: auto; }
.version-item {
  border: 1px solid var(--line); border-radius: 14px; padding: 14px; background: #fbfdff;
}
.version-item.latest { border-color: #9ec5ff; background: #f3f8ff; }
.version-item-top {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px;
}
.version-item-top strong { font-size: 16px; margin-right: 8px; }
.code-pill {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px;
  background: #eef2f7; color: #44556c; margin-right: 6px;
}
.tag.force { border-color: #f2c2c2; color: #c0392b; background: #fff1f1; }
.version-meta { display: flex; gap: 10px; flex-wrap: wrap; color: var(--muted); font-size: 12px; }
.version-changelog {
  margin: 0; white-space: pre-wrap; line-height: 1.5; font-size: 13px; color: #334155;
}
@media (max-width: 960px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; }
  .stats, .form-grid, .subject-grid, .version-layout { grid-template-columns: 1fr; }
}