/* Bootstrap 5.1.3 CSS - 简化版本 */
:root {
  --bs-blue: #0d6efd;
  --bs-indigo: #6610f2;
  --bs-purple: #6f42c1;
  --bs-pink: #d63384;
  --bs-red: #dc3545;
  --bs-orange: #fd7e14;
  --bs-yellow: #ffc107;
  --bs-green: #198754;
  --bs-teal: #20c997;
  --bs-cyan: #0dcaf0;
  --bs-white: #fff;
  --bs-gray: #6c757d;
  --bs-gray-dark: #343a40;
  --bs-primary: #0d6efd;
  --bs-secondary: #6c757d;
  --bs-success: #198754;
  --bs-info: #0dcaf0;
  --bs-warning: #ffc107;
  --bs-danger: #dc3545;
  --bs-light: #f8f9fa;
  --bs-dark: #212529;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  background-color: #fff;
}

.container-fluid {
  width: 100%;
  padding-right: 0.75rem;
  padding-left: 0.75rem;
  margin-right: auto;
  margin-left: auto;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-top: calc(-1 * 0);
  margin-right: calc(-0.5 * 1.5rem);
  margin-left: calc(-0.5 * 1.5rem);
}

.col-12, .col-md-3, .col-md-4, .col-md-6, .col-md-8, .col-md-9, .col-lg-2, .col-lg-4, .col-lg-10 {
  position: relative;
  width: 100%;
  padding-right: calc(1.5rem * 0.5);
  padding-left: calc(1.5rem * 0.5);
}

.col-12 { flex: 0 0 auto; width: 100%; }

@media (min-width: 768px) {
  .col-md-3 { flex: 0 0 auto; width: 25%; }
  .col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
  .col-md-6 { flex: 0 0 auto; width: 50%; }
  .col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
  .col-md-9 { flex: 0 0 auto; width: 75%; }
  .d-md-block { display: block !important; }
  .ms-sm-auto { margin-left: auto !important; }
}

@media (min-width: 992px) {
  .col-lg-2 { flex: 0 0 auto; width: 16.66666667%; }
  .col-lg-4 { flex: 0 0 auto; width: 33.33333333%; }
  .col-lg-10 { flex: 0 0 auto; width: 83.33333333%; }
}

.btn {
  display: inline-block;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  background-color: transparent;
  border: 1px solid transparent;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  border-radius: 0.25rem;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn:hover { color: #212529; }
.btn:focus { outline: 0; box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25); }
.btn:disabled { pointer-events: none; opacity: 0.65; }

.btn-primary {
  color: #fff;
  background-color: #0d6efd;
  border-color: #0d6efd;
}
.btn-primary:hover {
  color: #fff;
  background-color: #0b5ed7;
  border-color: #0a58ca;
}

.btn-secondary {
  color: #fff;
  background-color: #6c757d;
  border-color: #6c757d;
}
.btn-secondary:hover {
  color: #fff;
  background-color: #5c636a;
  border-color: #565e64;
}

.btn-success {
  color: #fff;
  background-color: #198754;
  border-color: #198754;
}
.btn-success:hover {
  color: #fff;
  background-color: #157347;
  border-color: #146c43;
}

.btn-info {
  color: #000;
  background-color: #0dcaf0;
  border-color: #0dcaf0;
}
.btn-info:hover {
  color: #000;
  background-color: #31d2f2;
  border-color: #25cff2;
}

.btn-warning {
  color: #000;
  background-color: #ffc107;
  border-color: #ffc107;
}
.btn-warning:hover {
  color: #000;
  background-color: #ffca2c;
  border-color: #ffc720;
}

.btn-danger {
  color: #fff;
  background-color: #dc3545;
  border-color: #dc3545;
}
.btn-danger:hover {
  color: #fff;
  background-color: #bb2d3b;
  border-color: #b02a37;
}

.btn-light {
  color: #000;
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

.btn-dark {
  color: #fff;
  background-color: #212529;
  border-color: #212529;
}

.btn-outline-secondary {
  color: #6c757d;
  border-color: #6c757d;
}
.btn-outline-secondary:hover {
  color: #fff;
  background-color: #6c757d;
  border-color: #6c757d;
}

.btn-outline-danger {
  color: #dc3545;
  border-color: #dc3545;
}
.btn-outline-danger:hover {
  color: #fff;
  background-color: #dc3545;
  border-color: #dc3545;
}

.btn-outline-info {
  color: #0dcaf0;
  border-color: #0dcaf0;
}
.btn-outline-info:hover {
  color: #000;
  background-color: #0dcaf0;
  border-color: #0dcaf0;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 0.2rem;
}

.btn-lg {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  border-radius: 0.3rem;
}

.btn-group-sm > .btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 0.2rem;
}

.w-100 { width: 100% !important; }
.d-grid { display: grid !important; }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  word-wrap: break-word;
  background-color: #fff;
  background-clip: border-box;
  border: 1px solid rgba(0, 0, 0, 0.125);
  border-radius: 0.25rem;
}

.card-body {
  flex: 1 1 auto;
  padding: 1rem 1rem;
}

.card-title {
  margin-bottom: 0.5rem;
}

.card-text:last-child {
  margin-bottom: 0;
}

.card-header {
  padding: 0.5rem 1rem;
  margin-bottom: 0;
  background-color: rgba(0, 0, 0, 0.03);
  border-bottom: 1px solid rgba(0, 0, 0, 0.125);
  border-top-left-radius: calc(0.25rem - 1px);
  border-top-right-radius: calc(0.25rem - 1px);
}

.table {
  width: 100%;
  margin-bottom: 1rem;
  color: #212529;
  vertical-align: top;
  border-color: #dee2e6;
}

.table th,
.table td {
  padding: 0.5rem 0.5rem;
  background-color: var(--bs-table-bg);
  border-bottom-width: 1px;
}

.table th {
  vertical-align: bottom;
  border-bottom: 2px solid #dee2e6;
}

.table-striped > tbody > tr:nth-of-type(odd) > td {
  background-color: rgba(0, 0, 0, 0.05);
}

.table-hover > tbody > tr:hover > td {
  background-color: rgba(0, 0, 0, 0.075);
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-dark {
  color: #fff;
  background-color: #212529;
}

.table-dark th,
.table-dark td {
  border-color: #373b3e;
}

.table-light {
  color: #000;
  background-color: #f8f9fa;
}

.alert {
  position: relative;
  padding: 0.75rem 1.25rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.25rem;
}

.alert-success {
  color: #0f5132;
  background-color: #d1e7dd;
  border-color: #badbcc;
}

.alert-info {
  color: #055160;
  background-color: #d1ecf1;
  border-color: #b6effb;
}

.alert-warning {
  color: #664d03;
  background-color: #fff3cd;
  border-color: #ffecb5;
}

.alert-danger {
  color: #842029;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-dismissible .btn-close {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  padding: 1.125rem 1.25rem;
}

.badge {
  display: inline-block;
  padding: 0.35em 0.65em;
  font-size: 0.75em;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 0.25rem;
}

.bg-primary { background-color: #0d6efd !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-success { background-color: #198754 !important; }
.bg-info { background-color: #0dcaf0 !important; }
.bg-warning { background-color: #ffc107 !important; }
.bg-danger { background-color: #dc3545 !important; }
.bg-light { background-color: #f8f9fa !important; }

.form-label {
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-control {
  display: block;
  width: 100%;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  background-color: #fff;
  background-image: none;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  color: #212529;
  background-color: #fff;
  border-color: #86b7fe;
  outline: 0;
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.input-group {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  width: 100%;
}

.input-group-text {
  display: flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  text-align: center;
  white-space: nowrap;
  background-color: #e9ecef;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: #0d6efd;
  text-decoration: none;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.nav-link:hover,
.nav-link:focus {
  color: #0a58ca;
}

.flex-column {
  flex-direction: column !important;
}

.pagination {
  display: flex;
  padding-left: 0;
  list-style: none;
}

.page-link {
  position: relative;
  display: block;
  color: #0d6efd;
  text-decoration: none;
  background-color: #fff;
  border: 1px solid #dee2e6;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.page-link:hover {
  z-index: 2;
  color: #0a58ca;
  background-color: #e9ecef;
  border-color: #dee2e6;
}

.page-item.active .page-link {
  z-index: 3;
  color: #fff;
  background-color: #0d6efd;
  border-color: #0d6efd;
}

.page-item.disabled .page-link {
  color: #6c757d;
  pointer-events: none;
  background-color: #fff;
  border-color: #dee2e6;
}

.justify-content-center {
  justify-content: center !important;
}

.text-center { text-align: center !important; }
.text-muted { color: #6c757d !important; }
.text-primary { color: #0d6efd !important; }
.text-success { color: #198754 !important; }
.text-info { color: #0dcaf0 !important; }
.text-warning { color: #ffc107 !important; }
.text-danger { color: #dc3545 !important; }

.fw-bold { font-weight: 700 !important; }

.fs-1 { font-size: calc(1.375rem + 1.5vw) !important; }
.fs-3 { font-size: calc(1.3rem + 0.6vw) !important; }
.fs-4 { font-size: calc(1.275rem + 0.3vw) !important; }

.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.me-2 { margin-right: 0.5rem !important; }

.px-3 { padding-left: 1rem !important; padding-right: 1rem !important; }
.px-md-4 { padding-left: 1.5rem !important; padding-right: 1.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.py-4 { padding-top: 1.5rem !important; padding-bottom: 1.5rem !important; }

.border-bottom { border-bottom: 1px solid #dee2e6 !important; }
.border-success { border-color: #198754 !important; }

.position-sticky { position: sticky !important; }

.btn-close {
  box-sizing: content-box;
  width: 1em;
  height: 1em;
  padding: 0.25em 0.25em;
  color: #000;
  background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='m.235 1.04 4.726 4.724L.235 10.488a.748.748 0 1 0 1.06 1.06L5.997 6.825l4.703 4.723a.748.748 0 1 0 1.06-1.06L7.058 5.765 11.82 1.04a.748.748 0 1 0-1.06-1.06L6.058 4.665 1.295 0a.748.748 0 1 0-1.06 1.06z'/%3e%3c/svg%3e") center/1em auto no-repeat;
  border: 0;
  border-radius: 0.25rem;
  opacity: 0.5;
}

.btn-close:hover { opacity: 0.75; }

.fade {
  transition: opacity 0.15s linear;
}

.show {
  opacity: 1;
}