/* ============================================================
   智创资源站 - 后台样式
   ============================================================ */
:root {
  --bg: #0E1116; --panel: #161B22; --panel-2: #1C232D;
  --border: #262C36; --border-2: #30363D;
  --text: #e6edf3; --muted: #8b949e; --muted-2: #6e7681;
  --gold: #F5C56A; --gold-dim: rgba(245,197,106,.12);
  --green: #34D399; --green-dim: rgba(52,211,153,.12);
  --red: #f87171; --red-dim: rgba(248,113,113,.12);
  --blue: #58a6ff;
  --radius: 12px; --radius-sm: 8px;
  --font-sans: "PingFang SC","Microsoft YaHei",sans-serif;
  --font-disp: "Sora","PingFang SC",sans-serif;
  --font-mono: "JetBrains Mono",monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
code { font-family: var(--font-mono); }

/* 登录页 */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px;
  background: radial-gradient(700px 400px at 70% 10%, rgba(245,197,106,.07), transparent 60%), var(--bg); }
.login-card { width: 100%; max-width: 380px; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 36px 32px; box-shadow: 0 20px 60px rgba(0,0,0,.5); }
.login-card .logo { width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, var(--gold), #e0a83a); display: grid; place-items: center; color: #1a1208; font-weight: 800; font-size: 22px; margin-bottom: 18px; }
.login-card h1 { font-family: var(--font-disp); font-size: 22px; margin-bottom: 4px; }
.login-card p { color: var(--muted); font-size: 14px; margin-bottom: 22px; }

/* 布局 */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.side { background: var(--panel); border-right: 1px solid var(--border); padding: 18px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.side .brand { display: flex; align-items: center; gap: 10px; padding: 8px 10px 18px; border-bottom: 1px solid var(--border); margin-bottom: 12px; font-family: var(--font-disp); font-weight: 700; }
.side .brand .lg { width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, var(--gold), #e0a83a); display: grid; place-items: center; color: #1a1208; font-weight: 800; }
.side .brand small { color: var(--muted-2); font-size: 11px; font-weight: 400; display: block; }
.side a.nav { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 9px; color: var(--muted); font-size: 14px; margin-bottom: 2px; transition: .15s; }
.side a.nav:hover { background: var(--panel-2); color: var(--text); }
.side a.nav.active { background: var(--gold-dim); color: var(--gold); font-weight: 600; }
.side .grp { color: var(--muted-2); font-size: 11px; padding: 14px 12px 6px; text-transform: uppercase; letter-spacing: 1px; }

.main { padding: 0; min-width: 0; }
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(14,17,22,.9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); padding: 14px 28px; display: flex; align-items: center; justify-content: space-between; }
.topbar h1 { font-family: var(--font-disp); font-size: 19px; font-weight: 700; }
.topbar .right { display: flex; align-items: center; gap: 14px; font-size: 13.5px; color: var(--muted); }
.topbar .right a { color: var(--gold); }
.content { padding: 26px 28px 50px; }

/* 卡片/统计 */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 26px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.stat .l { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.stat .n { font-family: var(--font-disp); font-size: 24px; font-weight: 800; }
.stat .n.gold { color: var(--gold); }
.stat .n.green { color: var(--green); }
.stat .n.blue { color: var(--blue); }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 22px; }
.card-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; gap: 12px; flex-wrap: wrap; }
.card-h h2 { font-family: var(--font-disp); font-size: 17px; font-weight: 700; }
.card-h .actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; gap: 5px; padding: 8px 16px; border-radius: 8px; font-weight: 600; font-size: 13.5px; border: 1px solid transparent; cursor: pointer; transition: .15s; white-space: nowrap; }
.btn-gold { background: var(--gold); color: #1a1208; }
.btn-gold:hover { background: #ffd97a; }
.btn-green { background: var(--green); color: #04231a; }
.btn-blue { background: var(--blue); color: #06182e; }
.btn-ghost { background: transparent; border-color: var(--border-2); color: var(--text); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-red { background: var(--red); color: #2a0a0a; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn-block { width: 100%; justify-content: center; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.form-control { width: 100%; background: var(--bg); border: 1px solid var(--border-2); border-radius: 8px; padding: 10px 13px; color: var(--text); font-size: 14px; outline: 0; transition: .15s; font-family: inherit; }
.form-control:focus { border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold-dim); }
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.hint { font-size: 12px; color: var(--muted-2); margin-top: 5px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th { text-align: left; color: var(--muted); font-weight: 600; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 12.5px; white-space: nowrap; }
.tbl td { padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tr:hover td { background: var(--panel-2); }
.tbl .mono { font-family: var(--font-mono); font-size: 12.5px; }
.tbl img.thumb { width: 50px; height: 34px; object-fit: cover; border-radius: 5px; }
.tbl .ellipsis { max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tbl .ops { display: flex; gap: 6px; flex-wrap: wrap; }
.scroll-tbl { overflow-x: auto; }

/* 状态 */
.st { padding: 3px 9px; border-radius: 6px; font-size: 12px; font-weight: 600; white-space: nowrap; }
.st-pending { background: var(--gold-dim); color: var(--gold); }
.st-pass, .st-on { background: var(--green-dim); color: var(--green); }
.st-reject, .st-off, .st-ban { background: var(--red-dim); color: var(--red); }
.st-draft { background: var(--panel-2); color: var(--muted); }

/* 搜索栏 */
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .search { display: flex; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.toolbar .search input { background: transparent; border: 0; outline: 0; color: var(--text); padding: 8px 12px; font-size: 13.5px; width: 220px; }
.toolbar select { background: var(--panel); border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 8px 12px; font-size: 13.5px; outline: 0; }

/* 闪存/提示 */
.flash { padding: 11px 16px; border-radius: 9px; margin-bottom: 18px; font-size: 14px; }
.flash-success { background: var(--green-dim); color: var(--green); border: 1px solid rgba(52,211,153,.25); }
.flash-error { background: var(--red-dim); color: var(--red); border: 1px solid rgba(248,113,113,.25); }
.alert { padding: 11px 16px; border-radius: 9px; font-size: 13.5px; margin-bottom: 16px; }
.alert-info { background: var(--gold-dim); color: var(--gold); border: 1px solid rgba(245,197,106,.2); }

/* 分类树 */
.cat-tree { }
.cat-node { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; overflow: hidden; }
.cat-node .cat-row { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: var(--panel-2); }
.cat-node .cat-row.lvl1 { background: linear-gradient(90deg, var(--panel-2), var(--panel)); }
.cat-node .cat-row .nm { font-weight: 600; font-size: 15px; flex: 1; }
.cat-node .cat-row .ic { width: 32px; height: 32px; border-radius: 8px; background: var(--gold-dim); display: grid; place-items: center; color: var(--gold); }
.cat-node .sub-list { padding: 8px 16px 12px 60px; }
.cat-node .sub-row { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.cat-node .sub-row:last-child { border-bottom: 0; }
.cat-node .sub-row .nm { flex: 1; color: var(--text); }
.cat-node .sub-row .nm::before { content: "└ "; color: var(--muted-2); }

/* 分页 */
.pager { display: flex; gap: 6px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }
.pager a { min-width: 34px; height: 34px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center; border-radius: 7px; background: var(--panel); border: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.pager a:hover { color: var(--text); }
.pager a.active { background: var(--gold); color: #1a1208; border-color: var(--gold); font-weight: 700; }
.pager .info { color: var(--muted-2); font-size: 13px; align-self: center; margin-left: 8px; }

.empty { text-align: center; padding: 40px 20px; color: var(--muted); }
.empty .ic { font-size: 38px; margin-bottom: 10px; opacity: .5; }

@media (max-width: 1024px) {
  .stats { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; height: auto; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .form-row, .form-row3 { grid-template-columns: 1fr; }
  .content { padding: 18px; }
}