:root {
  --ink: #17312b;
  --muted: #5d726b;
  --brand: #0e6b57;
  --brand-dark: #0a4639;
  --brand-soft: #e7f4ef;
  --line: #d9e5e0;
  --paper: #f4f7f5;
  --card: #fff;
  --warn: #9a5410;
  --warn-bg: #fff4e8;
  --danger: #9f2d2d;
  --danger-bg: #fdecec;
  --ok: #0d6b45;
  --ok-bg: #e8f6ee;
  --shadow: 0 10px 30px rgba(18, 52, 44, .06);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}
a { color: var(--brand-dark); text-decoration: none; }
a:hover { color: var(--brand); }
img { max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
.container { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  background: var(--brand-dark);
  color: #d7ebe4;
  font-size: 13px;
}
.topbar .container, .brandbar, .nav-bar, .footer-grid { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.nav-inner { display: flex; gap: 22px; align-items: center; }
.topbar a { color: #fff; }
.brandbar { padding: 18px 0 14px; }
.logo { display: flex; gap: 12px; align-items: center; color: var(--ink); }
.logo strong { display: block; font-size: 22px; letter-spacing: .04em; }
.logo span { color: var(--muted); font-size: 13px; }
.mark {
  width: 46px; height: 46px; border-radius: 14px;
  background: conic-gradient(from 120deg, #0e6b57, #8fb9a4, #c4a265, #0e6b57);
  display: grid; place-items: center; color: #fff; font-weight: 700;
  box-shadow: inset 0 0 0 3px rgba(255,255,255,.35);
}
.search { display: flex; width: min(420px, 46vw); background: #fff; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.search input { flex: 1; border: 0; padding: 10px 16px; outline: none; background: transparent; }
.search button, .btn {
  border: 0; cursor: pointer; background: var(--brand); color: #fff; padding: 10px 16px;
}
.btn { border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; }
.btn.secondary { background: #fff; color: var(--brand-dark); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); }
.btn.small, button.small { padding: 6px 10px; font-size: 13px; }
.nav { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.nav a { padding: 12px 0; margin-right: 22px; color: var(--ink); border-bottom: 2px solid transparent; }
.nav a.on, .nav a:hover { color: var(--brand); border-color: var(--brand); }
.menu-btn { display: none; }
.page { padding: 22px 0 48px; }
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.alert.ok { background: var(--ok-bg); color: var(--ok); }
.alert.err { background: var(--danger-bg); color: var(--danger); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat, .card, .board, .panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; }
.stat { padding: 14px 16px; }
.stat b { display: block; font-size: 26px; line-height: 1.2; }
.stat span, .muted { color: var(--muted); }
.notice { background: var(--warn-bg); border-radius: 12px; padding: 10px 14px; margin-bottom: 18px; }
.notice li { margin-left: 18px; }
.group { margin-top: 22px; }
.group-head { display: flex; justify-content: space-between; gap: 12px; align-items: end; margin-bottom: 10px; }
.group-head h2 { margin: 0; font-size: 20px; }
.group-head p { margin: 4px 0 0; color: var(--muted); }
.boards { display: flex; flex-direction: column; gap: 10px; }
.board { display: grid; grid-template-columns: minmax(0, 1.35fr) 88px minmax(0, 1.2fr); gap: 16px; padding: 16px 18px; align-items: center; }
.board h3 { margin: 0 0 4px; font-size: 18px; }
.board p { margin: 0; color: var(--muted); font-size: 14px; }
.board-count { text-align: center; color: var(--muted); line-height: 1.35; }
.board-count strong { display: block; color: var(--ink); font-size: 22px; font-variant-numeric: tabular-nums; }
.board-count span { display: block; font-size: 13px; }
.board-count em { display: block; margin-top: 2px; font-style: normal; font-size: 12px; color: var(--muted); }
.board-latest a { display: block; font-weight: 600; }
.board-latest .muted { display: block; margin-top: 4px; font-size: 13px; }
.pill { display: inline-block; margin-left: 6px; background: var(--warn-bg); color: var(--warn); border-radius: 999px; padding: 0 8px; font-size: 12px; font-weight: 600; }
.tag { display: inline-block; border-radius: 999px; padding: 1px 8px; font-size: 12px; background: var(--brand-soft); color: var(--brand-dark); }
.tag.warn { background: var(--warn-bg); color: var(--warn); }
.tag.danger { background: var(--danger-bg); color: var(--danger); }
.tag.ok { background: var(--ok-bg); color: var(--ok); }
.filters { display: flex; gap: 8px; align-items: center; margin: 12px 0; flex-wrap: wrap; }
.filters input, .filters select, .field input, .field select, .field textarea {
  border: 1px solid var(--line); border-radius: 8px; padding: 9px 10px; background: #fff; width: 100%;
}
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 13px; color: var(--muted); background: #f8fbfa; }
.title-cell a { font-weight: 650; }
.article { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 16px; }
.article-main, .side-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.article-main h1 { margin: 8px 0 12px; font-size: 28px; line-height: 1.35; }
.meta { display: flex; flex-wrap: wrap; gap: 8px 16px; color: var(--muted); font-size: 14px; }
.prose { font-size: 16px; }
.prose p { margin: 0 0 12px; }
.files a, .related a { display: block; padding: 6px 0; }
.layout-user { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 16px; }
.side-nav, .panel { background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.side-nav a { display: block; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.side-nav a.on { background: var(--brand-soft); color: var(--brand-dark); font-weight: 700; }
.panel { padding: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { margin-bottom: 12px; }
.field.full { grid-column: 1 / -1; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; }
.auth-card { width: min(460px, 100%); margin: 24px auto; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; box-shadow: var(--shadow); }
.demo-box { background: var(--brand-soft); border-radius: 10px; padding: 10px 12px; font-size: 13px; margin-bottom: 12px; }
.pager { margin-top: 16px; }
.pagination { display: flex; gap: 6px; list-style: none; padding: 0; flex-wrap: wrap; }
.pagination a, .pagination span { display: block; min-width: 36px; text-align: center; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.pagination .active span { background: var(--brand); color: #fff; border-color: var(--brand); }
.site-footer { background: #10241f; color: #c9ddd6; padding: 28px 0 18px; font-size: 14px; }
.site-footer a { color: #fff; }
.footer-grid { align-items: flex-start; }
.footer-grid > div { flex: 1; }
.site-footer h4 { margin: 0 0 8px; color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.08); margin-top: 18px; padding-top: 12px; color: #9eb4ad; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.row-actions form { margin: 0; }
.empty { color: var(--muted); padding: 24px; text-align: center; }
@media (max-width: 860px) {
  .stats, .board, .article, .layout-user, .form-grid { grid-template-columns: 1fr; }
  .brandbar, .topbar .container, .footer-grid, .nav-bar { flex-direction: column; align-items: flex-start; }
  .search { width: 100%; }
  .menu-btn { display: inline-flex; }
  .nav-inner { display: none; flex-direction: column; align-items: flex-start; width: 100%; padding-bottom: 8px; }
  .nav.open .nav-inner { display: flex; }
}