:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-soft: #eef2ff;
  --success: #10b981;
  --success-soft: #ecfdf5;
  --warning: #f59e0b;
  --warning-soft: #fffbeb;
  --danger: #ef4444;
  --danger-soft: #fef2f2;
  --info: #0ea5e9;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --sidebar-bg: #0f172a;
  --sidebar-bg2: #1e293b;
  --sidebar-text: #94a3b8;
  --sidebar-active: #4f46e5;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.14);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--gray-800);
  background: var(--gray-100);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }

/* ============ 布局 ============ */
.app { display: flex; min-height: 100vh; }

/* ============ 侧边栏 ============ */
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--sidebar-bg2) 0%, var(--sidebar-bg) 100%);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.25s ease;
}
.sidebar .logo {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 20px; color: #fff; font-size: 17px; font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.sidebar .logo .logo-badge {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.sidebar .nav { flex: 1; overflow-y: auto; padding: 12px 10px; }
.sidebar .nav::-webkit-scrollbar { width: 4px; }
.sidebar .nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.nav-group > .nav-item,
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 9px; color: var(--sidebar-text);
  font-size: 14px; margin-bottom: 2px; transition: all 0.15s;
  position: relative; width: 100%; text-align: left; background: none; border: none;
}
.nav-item:hover { background: rgba(255,255,255,0.06); color: #fff; }
.nav-item.active { background: var(--sidebar-active); color: #fff; }
.nav-item .icon { width: 20px; height: 20px; flex-shrink: 0; display: flex; }
.nav-item .arrow { margin-left: auto; transition: transform 0.2s; }
.nav-group.open > .nav-item .arrow { transform: rotate(90deg); }
.submenu { display: none; padding-left: 20px; }
.nav-group.open > .submenu { display: block; }

.sidebar .side-footer { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,0.06); font-size: 12px; color: var(--gray-400); }

/* ============ 主区域 ============ */
.main { flex: 1; margin-left: 240px; display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: 60px; background: #fff; border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: center; padding: 0 24px; gap: 16px;
  position: sticky; top: 0; z-index: 90;
}
.topbar .page-title { font-size: 17px; font-weight: 600; color: var(--gray-900); }
.topbar .spacer { flex: 1; }
.topbar .user-box { display: flex; align-items: center; gap: 10px; position: relative; }
.topbar .avatar {
  width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600;
}
.topbar .uname { font-size: 14px; font-weight: 500; color: var(--gray-700); }
.topbar .urole { font-size: 12px; color: var(--gray-400); }
.hamburger { display: none; background: none; border: none; }

.user-dropdown {
  position: absolute; top: 46px; right: 0; background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); min-width: 190px; padding: 6px; display: none; z-index: 120;
  border: 1px solid var(--gray-200);
}
.user-dropdown.show { display: block; }
.user-dropdown a, .user-dropdown button {
  display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px;
  font-size: 13px; color: var(--gray-700); width: 100%; text-align: left; background: none; border: none;
}
.user-dropdown a:hover, .user-dropdown button:hover { background: var(--gray-50); color: var(--primary); }

.content { padding: 24px; flex: 1; }

/* ============ 卡片 ============ */
.card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200); margin-bottom: 20px;
}
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.card-header h3 { font-size: 15px; font-weight: 600; color: var(--gray-900); }
.card-body { padding: 20px; }

/* ============ 统计卡片 ============ */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat-card {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--gray-200);
  padding: 20px; box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 16px;
}
.stat-card .s-icon {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.stat-card .s-val { font-size: 26px; font-weight: 700; color: var(--gray-900); line-height: 1; }
.stat-card .s-label { font-size: 13px; color: var(--gray-500); margin-top: 6px; }

/* ============ 表单 ============ */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.form-item label { display: block; font-size: 13px; color: var(--gray-600); margin-bottom: 6px; font-weight: 500; }
.form-item label .req { color: var(--danger); }
.input, select.input, textarea.input {
  width: 100%; padding: 9px 12px; border: 1px solid var(--gray-300); border-radius: 8px;
  background: #fff; color: var(--gray-800); outline: none; transition: border 0.15s, box-shadow 0.15s;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.12); }
.input:disabled { background: var(--gray-50); color: var(--gray-400); }
textarea.input { resize: vertical; min-height: 90px; }
.help { font-size: 12px; color: var(--gray-400); margin-top: 5px; }
.role-checks { display: flex; flex-wrap: wrap; gap: 10px; }
.role-check { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid var(--gray-200); border-radius: 8px; cursor: pointer; font-size: 13px; }
.role-check input { accent-color: var(--primary); }
.import-result-box { max-height: 300px; overflow-y: auto; border: 1px solid var(--gray-200); border-radius: 8px; padding: 10px; font-size: 13px; }
.import-result-box .ok { color: #059669; }
.import-result-box .bad { color: #dc2626; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 8px; font-size: 14px; font-weight: 500;
  border: 1px solid transparent; transition: all 0.15s; white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-outline { background: #fff; color: var(--gray-700); border-color: var(--gray-300); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-ghost { background: transparent; color: var(--gray-600); }
.btn-ghost:hover { background: var(--gray-100); }
.btn-sm { padding: 5px 10px; font-size: 13px; border-radius: 7px; }
.btn-block { width: 100%; }
.btn .icon { width: 16px; height: 16px; display: inline-flex; }

/* ============ 表格 ============ */
.table-wrap { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.table th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; color: var(--gray-500); font-weight: 600; background: var(--gray-50); }
.table tbody tr:hover { background: var(--gray-50); }
.table .ops { display: flex; gap: 6px; flex-wrap: wrap; }

/* ============ 徽章 ============ */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.badge-success { background: var(--success-soft); color: #059669; }
.badge-danger { background: var(--danger-soft); color: #dc2626; }
.badge-warning { background: var(--warning-soft); color: #d97706; }
.badge-info { background: #eff6ff; color: #2563eb; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }

/* ============ 工具栏 ============ */
.toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar .input { width: 260px; }
.toolbar .spacer { flex: 1; }

/* ============ 分页 ============ */
.pagination { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding-top: 16px; }
.pagination button {
  min-width: 34px; height: 34px; padding: 0 10px; border-radius: 8px;
  border: 1px solid var(--gray-300); background: #fff; color: var(--gray-700); font-size: 13px;
}
.pagination button.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { font-size: 13px; color: var(--gray-500); margin-right: 6px; }

/* ============ 弹窗 ============ */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15,23,42,0.5); z-index: 200;
  display: none; align-items: center; justify-content: center; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: 14px; width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto; box-shadow: var(--shadow-lg);
  animation: pop 0.18s ease;
}
.modal.lg { max-width: 820px; }
@keyframes pop { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.modal-head { padding: 18px 22px; border-bottom: 1px solid var(--gray-100); display: flex; align-items: center; justify-content: space-between; }
.modal-head h3 { font-size: 16px; font-weight: 600; }
.modal-head .close { background: none; border: none; font-size: 22px; color: var(--gray-400); line-height: 1; }
.modal-body { padding: 22px; }
.modal-foot { padding: 16px 22px; border-top: 1px solid var(--gray-100); display: flex; justify-content: flex-end; gap: 10px; }

/* ============ Toast ============ */
.toast-box { position: fixed; top: 20px; right: 20px; z-index: 300; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: #fff; border-radius: 10px; box-shadow: var(--shadow-lg); padding: 12px 16px;
  display: flex; align-items: center; gap: 10px; min-width: 260px; max-width: 360px;
  border-left: 4px solid var(--gray-400); animation: slide 0.2s ease;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
@keyframes slide { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

/* ============ 树 ============ */
.tree { font-size: 14px; }
.tree-node { user-select: none; }
.tree-label {
  display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 7px; cursor: pointer;
}
.tree-label:hover { background: var(--gray-50); }
.tree-toggle { width: 18px; height: 18px; display: inline-flex; align-items: center; justify-content: center; color: var(--gray-400); font-size: 12px; transition: transform 0.15s; }
.tree-toggle.open { transform: rotate(90deg); }
.tree-children { margin-left: 22px; border-left: 1px dashed var(--gray-200); padding-left: 8px; }
.tree-check { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.tree-tag { font-size: 11px; padding: 1px 7px; border-radius: 5px; margin-left: 4px; }

/* ============ 空状态 ============ */
.empty { text-align: center; padding: 50px 0; color: var(--gray-400); }
.empty .icon { font-size: 42px; margin-bottom: 10px; }

/* ============ 登录页 ============ */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px;
  background: linear-gradient(135deg, #312e81 0%, #4f46e5 45%, #0ea5e9 100%);
  position: relative; overflow: hidden;
}
.login-page::before, .login-page::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.35;
}
.login-page::before { width: 420px; height: 420px; background: #8b5cf6; top: -120px; right: -80px; }
.login-page::after { width: 380px; height: 380px; background: #06b6d4; bottom: -140px; left: -80px; }
.login-card {
  width: 100%; max-width: 420px; background: #fff; border-radius: 18px;
  box-shadow: var(--shadow-lg); padding: 40px 36px; position: relative; z-index: 1;
}
.login-card .login-logo { text-align: center; margin-bottom: 8px; }
.login-card .login-logo .logo-badge {
  width: 58px; height: 58px; border-radius: 15px; margin: 0 auto 14px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 30px;
  box-shadow: 0 8px 20px rgba(99,102,241,0.4);
}
.login-card h1 { font-size: 22px; font-weight: 700; text-align: center; color: var(--gray-900); }
.login-card .sub { text-align: center; color: var(--gray-500); font-size: 13px; margin: 6px 0 26px; }
.login-form .form-item { margin-bottom: 18px; }
.login-form label { display: block; font-size: 13px; color: var(--gray-600); margin-bottom: 6px; font-weight: 500; }
.captcha-row { display: flex; gap: 10px; }
.captcha-row .input { flex: 1; }
.captcha-img { width: 120px; height: 42px; border-radius: 8px; border: 1px solid var(--gray-200); cursor: pointer; flex-shrink: 0; background: #f5f7fb; }
.login-tips { margin-top: 18px; text-align: center; font-size: 12px; color: var(--gray-400); }
.login-sso { margin-top: 14px; text-align: center; }
.login-error { background: var(--danger-soft); color: #dc2626; border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 16px; display: none; }

/* ============ 响应式 H5 ============ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .main { margin-left: 0; }
  .hamburger { display: block; font-size: 22px; color: var(--gray-700); }
  .topbar { padding: 0 16px; }
  .content { padding: 16px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .toolbar .input { width: 100%; }
  .topbar .uname, .topbar .urole { display: none; }
}
@media (max-width: 480px) {
  .stat-grid { grid-template-columns: 1fr; }
  .modal { max-width: 100%; }
  .login-card { padding: 28px 22px; }
}