/* SAIS 全局主题 - 浅色白底卡片式 · 农业绿科技蓝 */
:root{
  --primary:#16a34a; --primary-dark:#15803d; --primary-light:#dcfce7;
  --secondary:#0ea5e9; --secondary-light:#e0f2fe;
  --accent:#f59e0b; --accent-light:#fef3c7;
  --danger:#ef4444; --warning:#f97316; --success:#22c55e; --info:#3b82f6;
  --bg:#f8fafc; --surface:#ffffff; --border:#e2e8f0;
  --text:#1e293b; --text-muted:#64748b; --text-light:#94a3b8;
  --sidebar-bg:#ffffff; --sidebar-w:240px; --sidebar-w-collapsed:72px;
  --topbar-h:60px;
  --radius:12px; --radius-sm:8px; --radius-lg:16px;
  --shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.04);
  --shadow-lg:0 10px 15px rgba(0,0,0,.08),0 4px 6px rgba(0,0,0,.04);
  --font:-apple-system,"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
img{max-width:100%;display:block}

/* ===== 布局外壳 ===== */
.admin-shell{display:flex;min-height:100vh}
.sidebar{width:var(--sidebar-w);background:var(--sidebar-bg);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:width .2s}
.sidebar.collapsed{width:var(--sidebar-w-collapsed)}
.sidebar-logo{height:var(--topbar-h);display:flex;align-items:center;gap:10px;padding:0 18px;border-bottom:1px solid var(--border);font-weight:700;font-size:17px;color:var(--primary);white-space:nowrap;overflow:hidden}
.sidebar-logo svg{width:30px;height:30px;flex-shrink:0}
.sidebar-nav{flex:1;overflow-y:auto;overflow-x:hidden;padding:8px 0}
.nav-group-title{padding:10px 18px 4px;font-size:11px;color:var(--text-light);text-transform:uppercase;letter-spacing:.5px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 18px;color:var(--text-muted);cursor:pointer;border-left:3px solid transparent;transition:background .15s,color .15s;white-space:nowrap}
.nav-item:hover{background:var(--primary-light);color:var(--primary-dark)}
.nav-item.active{background:var(--primary-light);color:var(--primary-dark);border-left-color:var(--primary);font-weight:600}
.nav-item svg{width:20px;height:20px;flex-shrink:0}
.sidebar.collapsed .nav-item span,.sidebar.collapsed .nav-group-title,.sidebar.collapsed .sidebar-logo span{display:none}

.main{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-width:0;transition:margin-left .2s}
.sidebar.collapsed ~ .main{margin-left:var(--sidebar-w-collapsed)}
.topbar{height:var(--topbar-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:50}
.topbar-left{display:flex;align-items:center;gap:14px}
.topbar-toggle{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;border-radius:8px;cursor:pointer;color:var(--text-muted)}
.topbar-toggle:hover{background:var(--bg)}
.topbar-title{font-size:16px;font-weight:600}
.topbar-right{display:flex;align-items:center;gap:16px}
.topbar-user{display:flex;align-items:center;gap:8px;cursor:pointer;padding:4px 8px;border-radius:8px}
.topbar-user:hover{background:var(--bg)}
.topbar-user .avatar{width:34px;height:34px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-weight:600;font-size:13px}
.content{flex:1;padding:20px;overflow-x:hidden;min-width:0}

/* ===== 卡片 ===== */
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--border);flex-wrap:wrap;gap:10px}
.card-title{font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}
.card-title svg{width:18px;height:18px}
.card-actions{display:flex;align-items:center;gap:8px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;font-size:14px;font-weight:500;transition:all .15s;white-space:nowrap;line-height:1.4;background:var(--surface)}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost{background:var(--bg);color:var(--text-muted);border-color:transparent}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark)}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-danger:hover{filter:brightness(.95)}
.btn-success{background:#16a34a;color:#fff;border-color:#16a34a}
.btn-success:hover{background:#15803d;color:#fff}
.btn-warning{background:#f59e0b;color:#fff;border-color:#f59e0b}
.btn-warning:hover{background:#d97706;color:#fff}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-lg{padding:11px 22px;font-size:15px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ===== 表格 ===== */
.table-wrap{overflow-x:auto;border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow)}
table.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table th{background:var(--bg);padding:12px 14px;text-align:left;font-weight:600;color:var(--text-muted);border-bottom:1px solid var(--border);white-space:nowrap}
.data-table td{padding:11px 14px;border-bottom:1px solid var(--border)}
.data-table tbody tr:nth-child(even){background:#fafbfc}
.data-table tbody tr:hover{background:var(--primary-light)}
.data-table .actions{display:flex;gap:6px;flex-wrap:nowrap}

/* ===== 表单 ===== */
.form-group{margin-bottom:16px}
.form-label{display:block;margin-bottom:6px;font-weight:500;color:var(--text)}
.form-label .req{color:var(--danger);margin-left:2px}
.form-control{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;background:var(--surface);transition:border-color .15s,box-shadow .15s;color:var(--text)}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}
.form-row{display:flex;gap:16px;flex-wrap:wrap}
.form-row>.form-group{flex:1;min-width:200px}

/* ===== 统计卡片 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:18px}
.stat-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;display:flex;align-items:center;gap:14px}
.stat-card .stat-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-card .stat-icon svg{width:26px;height:26px}
.stat-card .stat-info{flex:1;min-width:0}
.stat-card .stat-label{font-size:12px;color:var(--text-muted);margin-bottom:2px}
.stat-card .stat-value{font-size:24px;font-weight:700;color:var(--text);line-height:1.2}
.stat-card .stat-trend{font-size:12px;margin-top:4px}
.stat-trend.up{color:var(--success)}
.stat-trend.down{color:var(--danger)}

/* ===== 徽标 ===== */
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:600}
.badge-primary{background:var(--primary-light);color:var(--primary-dark)}
.badge-warning{background:var(--accent-light);color:#b45309}
.badge-danger{background:#fee2e2;color:#b91c1c}
.badge-info{background:var(--secondary-light);color:#0369a1}
.badge-muted{background:#f1f5f9;color:var(--text-muted)}
.badge-success{background:#dcfce7;color:#15803d}

/* ===== 分页 ===== */
.pagination{display:flex;align-items:center;gap:6px;justify-content:flex-end;padding:12px 14px;flex-wrap:wrap}
.pagination .page-btn{min-width:34px;height:34px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:6px;cursor:pointer;background:var(--surface);font-size:13px;color:var(--text)}
.pagination .page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .page-btn:disabled{opacity:.4;cursor:not-allowed}

/* ===== 通用工具 ===== */
.text-muted{color:var(--text-muted)}
.text-primary{color:var(--primary)}
.text-danger{color:var(--danger)}
.text-success{color:var(--success)}
.flex{display:flex}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-16{margin-bottom:16px}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}
.w-full{width:100%}
.hidden{display:none}
.empty-state{text-align:center;padding:40px;color:var(--text-light)}
.empty-state svg{width:56px;height:56px;margin-bottom:10px;opacity:.5}

/* ===== 加载过渡(防模板闪现) ===== */
[v-cloak]{display:none}
.loading-overlay{position:fixed;inset:0;background:rgba(248,250,252,.85);display:flex;align-items:center;justify-content:center;z-index:9999}
.spinner{width:42px;height:42px;border:4px solid var(--primary-light);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== 响应式 ===== */
@media(max-width:768px){
  .sidebar{transform:translateX(-100%);width:240px}
  .sidebar.show{transform:translateX(0)}
  .main{margin-left:0}
  .content{padding:14px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .form-row>.form-group{flex:1 1 100%}
  .topbar-title{font-size:14px}
}