:root {
  color-scheme: light;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: #f4f1e9;
  color: #172019;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 8% 12%, rgba(197, 222, 190, .8), transparent 30rem),
    linear-gradient(135deg, #faf8f2 0%, #edf2e8 100%);
}

.shell {
  width: min(960px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 56px;
  align-items: center;
  padding: 48px 0;
}

.eyebrow {
  margin: 0 0 18px;
  color: #386448;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .2em;
}

h1 { margin: 0 0 20px; font-size: clamp(2.5rem, 8vw, 5rem); line-height: .95; letter-spacing: -.05em; }
h2 { margin: 24px 0 20px; font-size: 1.35rem; }
.intro > p:not(.eyebrow) { max-width: 34rem; color: #58655c; line-height: 1.8; }

.boundary {
  margin-top: 32px;
  padding: 18px 20px;
  border-left: 3px solid #6b8f71;
  background: rgba(255, 255, 255, .55);
  display: grid;
  gap: 6px;
  line-height: 1.55;
}

.boundary span { color: #59645c; font-size: .92rem; }

.card {
  padding: 32px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(51, 77, 57, .12);
  border-radius: 20px;
  box-shadow: 0 24px 70px rgba(41, 58, 44, .12);
}

.status-row, .actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.badge { padding: 6px 10px; border-radius: 999px; background: #eee8da; color: #665e4f; font-size: .76rem; font-weight: 700; }
.badge.ready { background: #e4f1e5; color: #315d3b; }
.badge.missing { background: #f8e8df; color: #8a4933; }
.session { color: #657067; font-size: .82rem; }
.muted { margin: -8px 0 24px; color: #69746c; line-height: 1.6; font-size: .9rem; }

form { display: grid; gap: 10px; }
label { margin-top: 8px; font-size: .88rem; font-weight: 700; }
input {
  width: 100%;
  border: 1px solid #cbd2ca;
  border-radius: 10px;
  padding: 12px 13px;
  font: inherit;
  background: #fff;
}
input:focus { outline: 3px solid rgba(80, 128, 91, .18); border-color: #507f5a; }

button {
  border: 0;
  border-radius: 10px;
  padding: 12px 16px;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  background: #285d39;
  color: #fff;
}
form button { margin-top: 14px; }
button:disabled { cursor: not-allowed; opacity: .48; }
.secondary { background: transparent; color: #31543a; border: 1px solid #b8c6ba; }
.actions { justify-content: flex-start; margin-top: 18px; }
.message { margin-top: 18px; padding: 12px 14px; border-radius: 10px; line-height: 1.5; font-size: .9rem; }
.error { background: #fff0e9; color: #8a3922; }
.success { background: #eaf5eb; color: #285b36; }

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; gap: 32px; align-content: center; }
  h1 { font-size: 3.2rem; }
  .card { padding: 24px; }
}

/* 类目管理面板 */
.categories { margin-top: 32px; }
.categories h2 { margin-top: 0; }

.category-toolbar { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }

.category-form {
  margin: 16px 0;
  padding: 18px;
  border: 1px solid rgba(51, 77, 57, .16);
  border-radius: 14px;
  background: #fbfcf9;
  display: grid;
  gap: 12px;
}
.category-form-row { display: grid; gap: 4px; }
.category-form-row label { margin-top: 0; }
.category-form-actions { display: flex; gap: 10px; margin-top: 6px; }
.category-perms { border: 1px solid #d5ddd4; border-radius: 10px; padding: 10px 14px; display: flex; gap: 18px; }
.category-perms legend { font-size: .85rem; font-weight: 700; color: #58655c; padding: 0 6px; }
.category-perms label { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; margin-top: 0; }
.category-perms input { width: auto; }

.category-tree { list-style: none; margin: 12px 0 0; padding: 0; }
.category-node { margin: 6px 0; }
.category-node-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 12px;
  border: 1px solid rgba(51, 77, 57, .12);
  border-radius: 10px;
  background: #fff;
}
.category-name { font-weight: 750; color: #172019; }
.category-perm { font-size: .8rem; color: #386448; background: #e4f1e5; padding: 2px 8px; border-radius: 999px; }
.category-count { font-size: .8rem; color: #69746c; }
.category-actions { margin-left: auto; display: flex; gap: 6px; }
button.mini { padding: 6px 10px; font-size: .8rem; }
button.danger { background: #9c3f2a; }
.category-empty { color: #869189; padding: 12px; font-size: .9rem; }