/* Bootstrap 5.1.3 简化版本 - 只包含必要样式 */
: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: system-ui, -apple-system, "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 {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container { max-width: 540px; }
}

@media (min-width: 768px) {
  .container { max-width: 720px; }
}

@media (min-width: 992px) {
  .container { max-width: 960px; }
}

@media (min-width: 1200px) {
  .container { max-width: 1140px; }
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}

.col, .col-1, .col-2, .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-10, .col-11, .col-12, .col-auto, .col-lg, .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-5, .col-lg-6, .col-lg-7, .col-lg-8, .col-lg-9, .col-lg-10, .col-lg-11, .col-lg-12, .col-lg-auto, .col-md, .col-md-1, .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6, .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-11, .col-md-12, .col-md-auto, .col-sm, .col-sm-1, .col-sm-2, .col-sm-3, .col-sm-4, .col-sm-5, .col-sm-6, .col-sm-7, .col-sm-8, .col-sm-9, .col-sm-10, .col-sm-11, .col-sm-12, .col-sm-auto, .col-xl, .col-xl-1, .col-xl-2, .col-xl-3, .col-xl-4, .col-xl-5, .col-xl-6, .col-xl-7, .col-xl-8, .col-xl-9, .col-xl-10, .col-xl-11, .col-xl-12, .col-xl-auto {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}

.col { flex-basis: 0; flex-grow: 1; max-width: 100%; }

.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

@media (min-width: 768px) {
  .col-md { flex-basis: 0; flex-grow: 1; max-width: 100%; }
  .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-md-3 { flex: 0 0 25%; max-width: 25%; }
  .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-md-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .col-md-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-md-9 { flex: 0 0 75%; max-width: 75%; }
  .col-md-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-md-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (min-width: 992px) {
  .col-lg { flex-basis: 0; flex-grow: 1; max-width: 100%; }
  .col-lg-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
  .col-lg-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
  .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
  .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
  .col-lg-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
  .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
  .col-lg-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
  .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
  .col-lg-9 { flex: 0 0 75%; max-width: 75%; }
  .col-lg-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
  .col-lg-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
  .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
}

.d-flex { display: flex !important; flex-wrap: wrap;}
.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.align-items-center { align-items: center !important; }
.text-center { text-align: center !important; }
.text-decoration-none { text-decoration: none !important; }

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

.navbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}

.navbar-dark {
  background-color: #212529 !important;
}

.navbar-brand {
  padding-top: 0.3125rem;
  padding-bottom: 0.3125rem;
  margin-right: 1rem;
  font-size: 1.25rem;
  color: #fff;
  text-decoration: none;
}

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

.navbar-nav .nav-link {
  padding-right: 0;
  padding-left: 0;
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
}

.navbar-nav .nav-link:hover {
  color: rgba(255, 255, 255, 0.75);
}

.navbar-text {
  color: rgba(255, 255, 255, 0.55);
}

.navbar-expand-lg .navbar-nav {
  flex-direction: row;
}

.navbar-expand-lg .navbar-nav .nav-link {
  padding-right: 0.5rem;
  padding-left: 0.5rem;
}

.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: 0.375rem;
}

.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);
}

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

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

.card-text {
  margin-top: 0;
  margin-bottom: 1rem;
}

.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: 0.375rem;
  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-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-outline-primary {
  color: #0d6efd;
  border-color: #0d6efd;
}

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

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

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

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

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

.d-grid {
  display: grid !important;
}

.form-label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.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: 0.375rem;
  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);
}

.form-check {
  display: block;
  min-height: 1.5rem;
  padding-left: 1.5em;
  margin-bottom: 0.125rem;
}

.form-check-input {
  width: 1em;
  height: 1em;
  margin-top: 0.25em;
  vertical-align: top;
  background-color: #fff;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  border: 1px solid rgba(0, 0, 0, 0.25);
  appearance: none;
  color-adjust: exact;
}

.form-check-input:checked {
  background-color: #0d6efd;
  border-color: #0d6efd;
}

.form-check-label {
  color: #212529;
  cursor: pointer;
}

.form-text {
  margin-top: 0.25rem;
  font-size: 0.875em;
  color: #6c757d;
}

.alert {
  position: relative;
  padding: 0.75rem 1.25rem;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  border-radius: 0.375rem;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c2c7;
}

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

.alert-info {
  color: #055160;
  background-color: #cff4fc;
  border-color: #b6effb;
}

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

.badge {
  display: inline-block;
  padding: 0.35em 0.65em;
  font-size: 0.75em;
  font-weight: 700;
  line-height: 1;
  color: #000;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 0.375rem;
}

.bg-success {
  background-color: #198754 !important;
}

.bg-warning {
  background-color: #ffc107 !important;
}

.bg-dark {
  background-color: #212529 !important;
}

.text-light {
  color: #f8f9fa !important;
}

.text-muted {
  color: #6c757d !important;
}

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

.table th,
.table td {
  padding: 0.5rem;
  vertical-align: top;
  border-top: 1px solid #dee2e6;
}

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

.table-hover tbody tr:hover {
  color: #212529;
  background-color: rgba(0, 0, 0, 0.075);
}

.table-responsive {
  overflow-x: auto;
}

.pagination {
  display: flex;
  padding-left: 0;
  list-style: none;
  border-radius: 0.375rem;
}

.page-item:first-child .page-link {
  border-top-left-radius: 0.375rem;
  border-bottom-left-radius: 0.375rem;
}

.page-item:last-child .page-link {
  border-top-right-radius: 0.375rem;
  border-bottom-right-radius: 0.375rem;
}

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

.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;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1055;
  display: none;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.modal-dialog {
  position: relative;
  width: auto;
  margin: 0.5rem;
  pointer-events: none;
}

.modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  pointer-events: auto;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 0.5rem;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1rem;
  border-bottom: 1px solid #dee2e6;
  border-top-left-radius: calc(0.5rem - 1px);
  border-top-right-radius: calc(0.5rem - 1px);
}

.modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: 1rem;
}

.modal-footer {
  display: flex;
  flex-wrap: wrap;
  flex-shrink: 0;
  align-items: center;
  justify-content: flex-end;
  padding: 0.75rem;
  border-top: 1px solid #dee2e6;
  border-bottom-right-radius: calc(0.5rem - 1px);
  border-bottom-left-radius: calc(0.5rem - 1px);
}

.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.5 1.5 1-1L8 7.5l6.5-6.5 1 1L9 8.5l6.5 6.5-1 1L8 9.5l-6.5 6.5-1-1L7 8.5.5 2z'/%3e%3c/svg%3e") center/1em auto no-repeat;
  border: 0;
  border-radius: 0.375rem;
  opacity: 0.5;
}

.btn-close:hover {
  color: #000;
  text-decoration: none;
  opacity: 0.75;
}

.modal-lg {
  max-width: 800px;
}

@media (min-width: 992px) {
  .modal-lg {
    max-width: 800px;
  }
}

.display-1 {
  font-size: 5rem;
  font-weight: 300;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .container {
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }
}