@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

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

html {
    font-size: 14px;
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

a {
    color: var(--primary-color, #005BAC);
    text-decoration: none;
    background-color: transparent;
}

a:hover {
    color: var(--primary-light, #0074D9);
    text-decoration: none;
}

img {
    vertical-align: middle;
    border-style: none;
    max-width: 100%;
}

button {
    border-radius: 0;
}

button:focus {
    outline: 1px dotted;
    outline: 5px auto -webkit-focus-ring-color;
}

button, input, optgroup, select, textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

button, input {
    overflow: visible;
}

h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.2;
}

h1, .h1 { font-size: 2.5rem; }
h2, .h2 { font-size: 2rem; }
h3, .h3 { font-size: 1.75rem; }
h4, .h4 { font-size: 1.5rem; }
h5, .h5 { font-size: 1.25rem; }
h6, .h6 { font-size: 1rem; }

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

ul, ol {
    margin-top: 0;
    margin-bottom: 1rem;
}

.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: 1200px; }
}

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

.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-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-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-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 {
    position: relative;
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
}

.col-12 { flex: 0 0 100%; max-width: 100%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }

@media (min-width: 768px) {
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
}

@media (min-width: 992px) {
    .col-lg-12 { flex: 0 0 100%; max-width: 100%; }
    .col-lg-6 { flex: 0 0 50%; max-width: 50%; }
    .col-lg-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-lg-3 { flex: 0 0 25%; max-width: 25%; }
    .col-lg-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
}

.text-center { text-align: center !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

.d-none { display: none !important; }
.d-block { display: block !important; }
.d-flex { display: flex !important; }

.justify-content-center { justify-content: center !important; }
.justify-content-between { justify-content: space-between !important; }
.align-items-center { align-items: center !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !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; }
.mb-5 { margin-bottom: 3rem !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: 0.25rem !important; }
.pt-2 { padding-top: 0.5rem !important; }
.pt-3 { padding-top: 1rem !important; }
.pt-4 { padding-top: 1.5rem !important; }
.pt-5 { padding-top: 3rem !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: 0.25rem !important; }
.pb-2 { padding-bottom: 0.5rem !important; }
.pb-3 { padding-bottom: 1rem !important; }
.pb-4 { padding-bottom: 1.5rem !important; }
.pb-5 { padding-bottom: 3rem !important; }

.clearfix::after {
    display: block;
    clear: both;
    content: "";
}