/* ===== 华工人防 · 后台样式 ===== */
:root{
  --brand:#024a7c;--brand-d:#013357;--accent:#e8821e;
  --side:#0c2233;--side-2:#0f2a40;--ink:#1f2a36;--gray:#64748b;
  --line:#e5eaf0;--bg:#f1f5f9;--card:#fff;--ok:#16a34a;--danger:#dc2626;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.6}
a{text-decoration:none;color:inherit}
img{max-width:100%}

.admin-wrap{display:flex;min-height:100vh}
/* 侧边栏 */
.sidebar{width:236px;background:var(--side);color:#aebfce;flex:none;position:fixed;top:0;bottom:0;left:0;overflow-y:auto;z-index:30}
.sidebar .logo{display:flex;align-items:center;gap:11px;padding:20px 22px;border-bottom:1px solid rgba(255,255,255,.07)}
.sidebar .logo .mk{width:36px;height:36px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:800}
.sidebar .logo b{color:#fff;font-size:15px}
.sidebar .logo small{display:block;color:#7e93a6;font-size:11px}
.sidebar .grp{padding:16px 22px 6px;font-size:11px;letter-spacing:1px;color:#607890;text-transform:uppercase}
.sidebar nav a{display:flex;align-items:center;gap:11px;padding:11px 22px;font-size:14.5px;color:#aebfce;border-left:3px solid transparent;transition:.18s}
.sidebar nav a:hover{background:var(--side-2);color:#fff}
.sidebar nav a.active{background:var(--side-2);color:#fff;border-left-color:var(--accent)}
.sidebar nav a .ic{width:18px;text-align:center;opacity:.9}
.sidebar nav a .badge{margin-left:auto;background:var(--accent);color:#fff;font-size:11px;padding:1px 7px;border-radius:10px}

/* 主区 */
.main{flex:1;margin-left:236px;display:flex;flex-direction:column;min-width:0}
.topbar{height:60px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:20}
.topbar .page-t{font-size:17px;font-weight:600;color:var(--brand-d)}
.topbar .right{display:flex;align-items:center;gap:18px;font-size:14px;color:var(--gray)}
.topbar .right a{color:var(--gray)}
.topbar .right a:hover{color:var(--brand)}
.content{padding:26px;flex:1}

/* 卡片 / 表格 */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;margin-bottom:20px}
.card-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.card-h h3{margin:0;font-size:16px;color:var(--brand-d)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:8px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px}
.stat-card .n{font-size:30px;font-weight:800;color:var(--brand)}
.stat-card .l{color:var(--gray);font-size:13.5px;margin-top:2px}
.stat-card.accent .n{color:var(--accent)}

table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th{text-align:left;padding:11px 12px;color:var(--gray);font-weight:600;border-bottom:2px solid var(--line);font-size:13px}
table.tbl td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:hover td{background:#fafcfe}
table.tbl img.thumb{width:54px;height:40px;object-fit:cover;border-radius:6px}
.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;background:#eef4f9;color:var(--brand)}
.tag.green{background:#ecfdf5;color:var(--ok)}
.tag.gray{background:#f1f5f9;color:#64748b}
.tag.orange{background:#fff5eb;color:var(--accent)}

/* 按钮 / 表单 */
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--brand);color:#fff;border:0;padding:9px 18px;border-radius:8px;font-size:14px;cursor:pointer;transition:.2s}
.btn:hover{background:var(--brand-d)}
.btn.sm{padding:6px 12px;font-size:13px}
.btn.accent{background:var(--accent)}.btn.accent:hover{background:#c96c0d}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}.btn.ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn.danger{background:#fff;border:1px solid #fcc;color:var(--danger)}.btn.danger:hover{background:var(--danger);color:#fff}
.btn.green{background:var(--ok)}
.actions-cell{display:flex;gap:8px}

.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:13.5px;margin-bottom:7px;color:#33414f}
.field .hint{font-weight:400;color:#94a3b8;font-size:12px;margin-left:6px}
.field input[type=text],.field input[type=password],.field input[type=email],.field input[type=number],.field select,.field textarea{
  width:100%;padding:10px 13px;border:1px solid var(--line);border-radius:8px;font-size:14.5px;font-family:inherit;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(2,74,124,.1)}
.field textarea{resize:vertical;line-height:1.6}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.alert{padding:11px 15px;border-radius:8px;margin-bottom:18px;font-size:14px}
.alert.success{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.alert.error{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.alert.info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}

/* 登录 */
.login-wrap{min-height:100vh;display:grid;place-items:center;background:linear-gradient(120deg,#02375c,#024a7c)}
.login-card{background:#fff;border-radius:16px;padding:40px;width:380px;box-shadow:0 30px 60px rgba(0,0,0,.25)}
.login-card .lg{text-align:center;margin-bottom:24px}
.login-card .lg .mk{width:52px;height:52px;border-radius:12px;background:var(--brand);color:#fff;display:inline-grid;place-items:center;font-weight:800;font-size:24px}
.login-card h1{font-size:20px;color:var(--brand-d);margin:14px 0 2px;text-align:center}
.login-card p.sub{text-align:center;color:#94a3b8;font-size:13px;margin:0 0 22px}

/* AI 写作 */
.ai-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.skill-pick{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:6px}
.skill-pick label{display:block;cursor:pointer}
.skill-pick input{display:none}
.skill-pick .chip{display:block;padding:9px 16px;border:1.5px solid var(--line);border-radius:30px;font-size:13.5px;color:#475569;transition:.18s}
.skill-pick input:checked + .chip{background:var(--brand);color:#fff;border-color:var(--brand)}
.ai-output{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0;overflow:hidden;position:sticky;top:80px}
.ai-output .oh{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);background:#fafcfe}
.ai-output .oh b{color:var(--brand-d)}
.ai-output .obody{padding:18px;max-height:64vh;overflow:auto;font-size:14px;line-height:1.85;white-space:pre-wrap}
.ai-output .obody.rendered{white-space:normal}
.ai-status{font-size:13px;color:var(--gray)}
.spinner{display:inline-block;width:15px;height:15px;border:2px solid #cbd5e1;border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-2px}
@keyframes spin{to{transform:rotate(360deg)}}
.token-tip{font-size:12px;color:#94a3b8;margin-top:6px}

/* media grid */
.media-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.media-item{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;position:relative}
.media-item .ph{aspect-ratio:1;background:#f1f5f9;display:grid;place-items:center;overflow:hidden}
.media-item .ph img{width:100%;height:100%;object-fit:cover}
.media-item .mt{padding:8px 10px;font-size:12px;color:#64748b;word-break:break-all}
.media-item .copy{position:absolute;top:6px;right:6px;background:rgba(0,0,0,.55);color:#fff;border:0;border-radius:6px;font-size:11px;padding:3px 8px;cursor:pointer}

@media (max-width:900px){
  .sidebar{transform:translateX(-100%);transition:.3s}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .ai-layout,.row2,.row3{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}