/* 管理后台现代化外观，保留原有菜单地址和 Bootstrap 行为。 */
.admin-modern {
  --admin-primary: #2878f0;
  --admin-ink: #17243b;
  --admin-muted: #8290a6;
  --admin-line: #e8edf5;
  --admin-canvas: #f4f7fb;
  min-height: 100vh;
  background: var(--admin-canvas);
  color: var(--admin-ink);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.admin-modern .navbar.navbar-fixed-top {
  right: auto;
  width: 248px;
  height: 100vh;
  min-height: 100vh;
  margin: 0;
  border: 0;
  border-right: 1px solid var(--admin-line);
  border-radius: 0;
  background: #fff;
  box-shadow: 5px 0 22px rgba(35,56,94,.04);
  z-index: 1030;
}
.admin-modern .navbar.navbar-fixed-top > .container { width: auto; margin: 0; padding: 0; }
.admin-modern .navbar-header { float: none; width: 100%; padding: 18px 20px; border-bottom: 1px solid var(--admin-line); }
.admin-modern .navbar-brand { float: none; display: block; height: 42px; padding: 9px 12px; color: var(--admin-primary); font-weight: 700; font-size: 17px; }
.admin-modern .navbar-brand:before { content: ""; display: inline-block; width: 10px; height: 10px; margin-right: 10px; border-radius: 50%; vertical-align: 1px; background: var(--admin-primary); box-shadow: 0 0 0 7px #eaf2ff; }
.admin-modern .navbar-toggle { display: none; }
.admin-modern .navbar-collapse { display: block !important; height: auto !important; padding: 16px 12px; overflow: visible !important; border: 0; box-shadow: none; }
.admin-modern .navbar-nav { float: none; margin: 0; }
.admin-modern .navbar-nav > li { float: none; margin: 3px 0; }
.admin-modern .navbar-nav > li > a { padding: 12px 14px; border-radius: 10px; color: #65738a; font-size: 13px; }
.admin-modern .navbar-nav > li > a:hover,
.admin-modern .navbar-nav > li.active > a { color: var(--admin-primary); background: #edf4ff; }
.admin-modern .navbar-nav > li > a > i { width: 23px; color: currentColor; }
.admin-modern .navbar-nav .caret { float: right; margin-top: 6px; }
.admin-modern .navbar-nav .dropdown-menu { position: static; float: none; display: none; min-width: 0; margin: 0 0 6px 15px; padding: 5px 0; border: 0; border-left: 1px solid #dfe8f6; border-radius: 0; background: transparent; box-shadow: none; }
.admin-modern .navbar-nav .open > .dropdown-menu { display: block; }
.admin-modern .navbar-nav .dropdown-menu > li > a { padding: 8px 12px; color: #8995a8; font-size: 12px; }
.admin-modern .navbar-nav .dropdown-menu > li > a:hover { color: var(--admin-primary); background: #f7faff; }
.admin-modern .navbar-nav .divider { margin: 5px 12px; background: var(--admin-line); }
.admin-modern > .container,
.admin-modern > .container-fluid { width: auto; max-width: none; margin-left: 248px; padding: 32px 34px 48px; }
.admin-modern .panel { border: 1px solid var(--admin-line); border-radius: 14px; background: #fff; box-shadow: 0 8px 24px rgba(31,55,94,.05); overflow: hidden; }
.admin-modern .panel-heading { padding: 17px 20px; color: var(--admin-ink); font-weight: 700; background: #fff; border-bottom: 1px solid var(--admin-line); }
.admin-modern .panel-primary { border-color: var(--admin-line); }
.admin-modern .panel-primary > .panel-heading { color: var(--admin-ink); background: #fff; border-top: 3px solid var(--admin-primary); }
.admin-modern .panel-info > .panel-heading,
.admin-modern .panel-success > .panel-heading,
.admin-modern .panel-warning > .panel-heading { color: var(--admin-ink); background: #fff; border-top: 3px solid var(--admin-primary); }
.admin-modern .panel-body { padding: 22px; }
.admin-modern .list-group-item { border-color: var(--admin-line); padding: 15px 20px; color: #5d6b80; }
.admin-modern .list-group-item a { color: var(--admin-primary); }
.admin-modern .table { margin-bottom: 0; }
.admin-modern .table > thead > tr > th { padding: 13px 15px; color: #8290a6; font-size: 12px; border-bottom: 1px solid var(--admin-line); }
.admin-modern .table > tbody > tr > td { padding: 13px 15px; color: #58677c; border-color: #f0f3f8; vertical-align: middle; }
.admin-modern .table-striped > tbody > tr:nth-of-type(odd) { background: #fbfcff; }
.admin-modern .form-control { height: 42px; border-color: #dfe6f0; border-radius: 9px; box-shadow: none; }
.admin-modern .form-control:focus { border-color: #8ebaff; box-shadow: 0 0 0 3px rgba(40,120,240,.12); }
.admin-modern .btn { border-radius: 8px; }
.admin-modern .btn-primary { border: 0; background: linear-gradient(135deg, #2878f0, #4c9af7); box-shadow: 0 6px 14px rgba(40,120,240,.18); }
.admin-modern .btn-info { border: 0; background: #edf4ff; color: var(--admin-primary); }
.admin-modern .nav-pills { margin: 0 0 22px; padding: 6px; border: 1px solid var(--admin-line); border-radius: 12px; background: #fff; }
.admin-modern .nav-pills > li > a { border-radius: 8px; color: #7a879b; }
.admin-modern .nav-pills > li.active > a,
.admin-modern .nav-pills > li.active > a:hover { background: #edf4ff; color: var(--admin-primary); }
.admin-modern .alert { border: 0; border-radius: 10px; }
.admin-modern img.img-thumbnail { border-color: var(--admin-line); border-radius: 12px; }

@media (max-width: 767px) {
  .admin-modern .navbar.navbar-fixed-top { position: relative; width: 100%; height: auto; min-height: 0; }
  .admin-modern .navbar-header {
    margin-right: 0;
    margin-left: 0;
    padding: 10px 14px;
  }
  .admin-modern .navbar-collapse {
    width: 100%;
    margin-right: 0;
    margin-left: 0;
    max-height: none !important;
    padding: 10px 14px;
  }
  .admin-modern .navbar-nav .dropdown-menu { margin-left: 8px; }
  .admin-modern > .container,
  .admin-modern > .container-fluid { margin-left: 0; padding: 18px 12px 30px; }
  .admin-modern > .container,
  .admin-modern > .container-fluid { padding-top: 18px !important; }
  .admin-modern .nav-pills { overflow-x: auto; white-space: nowrap; }
  .admin-modern .nav-pills > li { float: none; display: inline-block; }
}

/* 后台侧栏排版与语义颜色统一覆盖。 */
.admin-modern .navbar-collapse { scrollbar-width: thin; scrollbar-color: #d6e1f1 transparent; }
.admin-modern .navbar-nav.navbar-right {
  float: none !important;
  width: 100%;
}
.admin-modern .navbar-nav > li,
.admin-modern .navbar-nav > li > a {
  width: 100%;
}
.admin-modern .navbar-nav .dropdown-menu {
  width: calc(100% - 15px);
}
.admin-modern .navbar-nav > li > a {
  display: flex;
  align-items: center;
  min-height: 42px;
  box-sizing: border-box;
  font-size: 13px;
  font-weight: 500;
  line-height: 20px;
  white-space: nowrap;
}
.admin-modern .navbar-nav > li > a > i {
  flex: 0 0 22px;
  width: 22px;
  margin: 0 9px 0 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
}
.admin-modern .navbar-nav .caret { margin-left: auto; float: none; }
.admin-modern .navbar-nav .dropdown-menu > li > a {
  min-height: 34px;
  box-sizing: border-box;
  font-size: 12px;
  line-height: 18px;
  white-space: nowrap;
}
.admin-modern .navbar-nav .dropdown-menu > li > a:hover { border-radius: 7px; }
.admin-modern .navbar-nav > li > a > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-modern .panel-warning { border-color: #f0e4c7; }
.admin-modern .panel-warning > .panel-heading,
.admin-modern .panel-heading[style*="background-color"] {
  color: var(--admin-ink) !important;
  background: #fff !important;
  border-top: 3px solid #efc36d;
}
.admin-modern .panel .panel-title,
.admin-modern .panel-heading h3,
.admin-modern .panel-heading h4 { color: var(--admin-ink) !important; }
.admin-modern .panel-danger > .panel-heading { color: var(--admin-ink); background: #fff; border-top: 3px solid #e99aa2; }
.admin-modern .panel-success > .panel-heading { border-top-color: #78cba5; }
.admin-modern .btn-default { color: #5f6e83; background: #f6f8fb; border-color: #e0e7f0; box-shadow: none; }
.admin-modern .btn-success { color: #187d58; background: #eaf8f1; border-color: #c8eddb; box-shadow: none; }
.admin-modern .btn-warning { color: #9a6800; background: #fff6e4; border-color: #f5dfae; box-shadow: none; }
.admin-modern .btn-danger { color: #bd4d58; background: #fff0f1; border-color: #f3cdd1; box-shadow: none; }
.admin-modern .navbar-header { white-space: nowrap; overflow: hidden; }
.admin-modern .navbar-brand { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 16px; }

@media (min-width: 768px) {
  .admin-modern .navbar-collapse {
    max-height: calc(100vh - 79px);
    overflow-x: hidden !important;
    overflow-y: auto !important;
  }
}