:root{
  --bg:#f4f6f8;
  --card:#fff;
  --text:#1f2937;
  --muted:#6b7280;
  --line:#e5e7eb;
  --primary:#0f766e;
  --primary-2:#115e59;
  --danger:#b91c1c;
  --ok:#047857;
  --warn:#b45309;
  --shadow:0 8px 24px rgba(15,23,42,.06);
  --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-2)}
.container{width:min(1180px,92%);margin:0 auto}
.site-header{background:#0b1220;color:#fff;position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;gap:18px;min-height:68px}
.logo{display:flex;align-items:center;gap:10px;color:#fff}
.logo small{display:block;color:#94a3b8;font-size:12px}
.logo-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#14b8a6,#0f766e);display:grid;place-items:center;font-weight:700}
.nav{display:flex;gap:14px;flex:1;flex-wrap:wrap}
.nav a{color:#cbd5e1;font-size:14px}
.nav a:hover{color:#fff}
.header-actions{display:flex;align-items:center;gap:8px}
.search-form input,.hero-search input,.form input,.form textarea,.form select,table input,table select{
  width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 12px;background:#fff;color:var(--text)
}
.search-form input{width:180px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:none;border-radius:8px;padding:9px 14px;cursor:pointer;font-weight:600}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-2);color:#fff}
.btn-ghost{background:transparent;color:#e2e8f0;border:1px solid #334155}
.admin-body .btn-ghost,.site-main .btn-ghost{color:var(--text);border-color:var(--line);background:#fff}
.btn-lg{padding:12px 18px;font-size:16px}
.site-main{padding:24px 0 48px}
.site-footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);background:#fff}
.footer-inner{text-align:center}
.hero{display:grid;grid-template-columns:1.4fr .8fr;gap:18px;margin-bottom:18px;background:linear-gradient(135deg,#0f172a,#134e4a);color:#fff;border-radius:16px;padding:28px}
.hero h1{margin:0 0 8px;font-size:32px}
.hero-search{display:flex;gap:8px;margin-top:16px}
.hero-search input{flex:1}
.hero-stats{display:grid;gap:10px}
.hero-stats div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px}
.hero-stats strong{display:block;font-size:24px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:18px;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.panel h2{margin:0 0 12px;font-size:18px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.resource-card{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:#fff;display:flex;flex-direction:column}
.resource-card .cover{position:relative;display:block;aspect-ratio:16/10;background:#e2e8f0}
.resource-card img{width:100%;height:100%;object-fit:cover}
.cover-placeholder{width:100%;height:100%;display:grid;place-items:center;font-size:42px;font-weight:700;color:#0f766e;background:linear-gradient(135deg,#ccfbf1,#99f6e4)}
.card-body{padding:12px}
.card-body h3{margin:0 0 8px;font-size:15px;line-height:1.4}
.card-body p{margin:0;color:var(--muted);font-size:13px;min-height:40px}
.meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:12px;margin-top:10px}
.badge{display:inline-flex;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:700}
.badge-free{background:#d1fae5;color:#065f46}
.badge-points{background:#ffedd5;color:#9a3412}
.badge-vip{background:#ede9fe;color:#5b21b6}
.badge-paid{background:#fee2e2;color:#991b1b}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.stat strong{display:block;font-size:22px}
.stat span{color:var(--muted);font-size:13px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top;font-size:14px}
.form{display:grid;gap:8px;max-width:720px}
.form-grid{max-width:100%}
.form label{font-size:13px;color:var(--muted);margin-top:4px}
.checks{display:flex;gap:16px;margin:8px 0}
.auth-card{max-width:460px;margin:20px auto}
.alert{padding:12px 14px;border-radius:8px;margin-bottom:14px}
.alert-success{background:#ecfdf5;color:var(--ok);border:1px solid #a7f3d0}
.alert-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}
.pagination{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.pagination a{padding:6px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text)}
.pagination a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.detail-head{display:flex;justify-content:space-between;gap:18px;margin-bottom:18px}
.detail-action{min-width:180px;text-align:right}
.price{font-size:24px;font-weight:700;color:var(--primary);margin-bottom:10px}
.content-body{line-height:1.8}
.content-body h3{margin-top:18px}
.result-box .result-fields{display:grid;gap:8px;margin:16px 0}
.announce-list{list-style:none;padding:0;margin:0}
.announce-list li{padding:10px 0;border-bottom:1px solid var(--line)}
.announce-list strong{display:block}
.filters{display:flex;gap:8px}
.filters a{padding:4px 10px;border-radius:999px;background:#f1f5f9;color:var(--text);font-size:13px}
.filters a.active{background:var(--primary);color:#fff}
.muted{color:var(--muted)}
.empty,.empty-page{text-align:center;padding:30px;color:var(--muted)}
.ops{display:flex;gap:10px;align-items:center}
.link-btn{background:none;border:none;color:var(--danger);cursor:pointer;padding:0}
.admin-body{background:#f8fafc}
.admin-shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}
.admin-side{background:#0b1220;color:#cbd5e1;padding:18px 12px;display:flex;flex-direction:column;gap:6px}
.admin-brand{color:#fff;font-weight:700;padding:10px 12px 18px}
.admin-side a{color:#cbd5e1;padding:10px 12px;border-radius:8px}
.admin-side a:hover{background:#1e293b;color:#fff}
.admin-main{padding:18px}
.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.admin-top h1{margin:0;font-size:22px}
.inline-form{display:flex;gap:8px}
.tips{margin-top:16px;color:var(--muted);font-size:14px}
@media (max-width:900px){
  .header-inner{flex-wrap:wrap;padding:10px 0}
  .nav{order:3;width:100%}
  .hero,.grid-2,.stat-grid,.admin-shell,.detail-head{grid-template-columns:1fr}
  .admin-side{flex-direction:row;flex-wrap:wrap}
  .search-form input{width:120px}
}

.code-row{display:flex;gap:8px;align-items:center}
.code-row input{flex:1}
.code-row .btn{white-space:nowrap}