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

:root {
    --bs-primary: #0d6efd;
    --bs-secondary: #6c757d;
    --bs-success: #198754;
    --bs-danger: #dc3545;
    --bs-warning: #ffc107;
    --bs-light: #f8f9fa;
    --bs-dark: #212529;
    --bs-white: #fff;
    --bs-border-color: #dee2e6;
    --bs-body-color: #212529;
    --bs-body-bg: #fff;
    --bs-font-sans-serif: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}

html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--bs-font-sans-serif);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
}

h2,
h3,
p {
    margin-top: 0;
}

a {
    color: var(--bs-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

button,
input {
    margin: 0;
    font: inherit;
}

button {
    text-transform: none;
    cursor: pointer;
}

button,
[type="button"],
[type="submit"] {
    -webkit-appearance: button;
}

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

@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;
    }
}

.card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background-color: #fff;
    background-clip: border-box;
    border: 1px solid rgba(0, 0, 0, 0.125);
    border-radius: 0.5rem;
}

.card-body {
    flex: 1 1 auto;
    padding: 1.25rem;
}

.card-title {
    margin-bottom: 0.75rem;
}

.btn {
    display: inline-block;
    font-weight: 400;
    line-height: 1.5;
    color: var(--bs-body-color);
    text-align: center;
    vertical-align: middle;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, color 0.15s ease-in-out;
}

.btn:hover {
    text-decoration: none;
}

.btn-primary {
    color: #fff;
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

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

.btn-outline-danger {
    color: var(--bs-danger);
    border-color: var(--bs-danger);
}

.btn-outline-danger:hover {
    color: #fff;
    background-color: var(--bs-danger);
    border-color: var(--bs-danger);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 0.35rem;
}

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

.btn-close {
    box-sizing: content-box;
    width: 1em;
    height: 1em;
    padding: 0.25em;
    color: #000;
    background: transparent;
    border: 0;
    border-radius: 0.25rem;
    opacity: 0.5;
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
}

.btn-close::before,
.btn-close::after {
    content: "";
    position: absolute;
    left: 0.7em;
    top: 0.2em;
    width: 2px;
    height: 0.9em;
    background-color: currentColor;
}

.btn-close::before {
    transform: rotate(45deg);
}

.btn-close::after {
    transform: rotate(-45deg);
}

.btn-close:hover {
    opacity: 0.8;
}

.form-label {
    display: inline-block;
    margin-bottom: 0.5rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--bs-body-color);
    background-color: #fff;
    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 {
    border-color: #86b7fe;
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.alert {
    position: relative;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.5rem;
}

.alert-danger {
    color: #842029;
    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-dismissible {
    padding-right: 3rem;
}

.fade {
    transition: opacity 0.15s linear;
}

.fade:not(.show) {
    opacity: 0;
}

.show {
    opacity: 1;
}

.spinner-border {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    vertical-align: text-bottom;
    border: 0.25em solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

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

.table {
    width: 100%;
    margin-bottom: 1rem;
    color: var(--bs-body-color);
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    border-top: 1px solid var(--bs-border-color);
}

.table > :not(caption) > * > * {
    background-color: #fff;
}

.table-light > * > * {
    background-color: var(--bs-light);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(0, 0, 0, 0.025);
}

.table-hover > tbody > tr:hover > * {
    background-color: rgba(0, 0, 0, 0.045);
}

.table-warning > * {
    background-color: #fff3cd;
}

.accordion-button {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    padding: 1rem 1.25rem;
    border: 0;
    border-radius: 0;
    text-align: left;
    cursor: pointer;
}

.accordion-button::after {
    content: "";
    margin-left: auto;
    width: 0.65rem;
    height: 0.65rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.15s ease;
}

.accordion-button:not(.collapsed)::after {
    transform: rotate(-135deg);
}

.collapse:not(.show) {
    display: none;
}

.text-center {
    text-align: center;
}

.text-primary {
    color: var(--bs-primary);
}

.text-secondary,
.text-muted {
    color: var(--bs-secondary);
}

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

.lead {
    font-size: 1.25rem;
    font-weight: 300;
}

.d-grid {
    display: grid;
}

.position-relative {
    position: relative;
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.rounded-pill {
    border-radius: 50rem;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.border-top {
    border-top: 1px solid var(--bs-border-color);
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.my-5 {
    margin-top: 3rem;
    margin-bottom: 3rem;
}

.pt-3 {
    padding-top: 1rem;
}

.px-3 {
    padding-left: 1rem;
    padding-right: 1rem;
}