/* Inline SVG icons (replaces former remixicon font) */
.hidden {
    display: none !important;
}

.vk-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    flex-shrink: 0;
    fill: currentColor;
}

.vk-icon.inline-flex,
svg.vk-icon.inline-flex {
    display: inline-flex;
}

:root {
    --site-gutter: 1rem;
    --site-content-max-width: none;
    --blog-wx-width: 980px;
    --site-font-family: "PingFang SC", "Microsoft YaHei", "Microsoft YaHei UI", "Hiragino Sans GB", "WenQuanYi Micro Hei", ui-sans-serif, system-ui, sans-serif;
    --site-body-font-size: 16px;
    --site-body-line-height: 1.5;
    --site-meta-font-size: 12px;
    --site-meta-line-height: 1.5;
    --site-footer-block: 5rem;
    --site-content-min-height: calc(100vh - var(--topnav-height) - var(--site-footer-block));
}

@media (min-width: 640px) {
    :root {
        --site-gutter: 1.5rem;
    }
}

@media (max-width: 767px) {
    :root {
        --site-footer-block: 7.5rem;
    }
}

@media (min-width: 1024px) {
    :root {
        --site-gutter: 2rem;
    }
}

@media (max-width: 1580px) {
    :root {
        --site-body-font-size: 14px;
    }
}

.site-container {
    width: 100%;
    max-width: var(--site-content-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: max(var(--site-gutter), env(safe-area-inset-left));
    padding-right: max(var(--site-gutter), env(safe-area-inset-right));
}

body {
    font-family: var(--site-font-family);
    font-size: var(--site-body-font-size);
    line-height: var(--site-body-line-height);
}

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

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: clip;
}

img,
video {
    max-width: 100%;
    height: auto;
}

.site-alert {
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    border: 1px solid;
}
.site-alert--error {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: var(--danger);
}
.site-alert--ok {
    background: var(--success-bg);
    color: var(--success);
    border-color: var(--success);
}
.site-alert--warn {
    background: var(--warn-bg);
    color: var(--warn);
    border-color: var(--warn);
}
.site-alert--info {
    background: var(--accent-soft);
    color: var(--site-theme-color);
    border-color: var(--site-theme-color);
}
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
    background: var(--surface);
    color: var(--fg);
}
.badge--ok { background: var(--success-bg); color: var(--success); }
.badge--warn { background: var(--warn-bg); color: var(--warn); }
.badge--err { background: var(--danger-bg); color: var(--danger); }
.badge--muted { background: var(--surface); color: var(--muted); }
.site-toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 6;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border-radius: 0.5rem;
    color: var(--on-accent);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}
.site-toast--error { background: var(--danger); }
.site-toast--ok { background: var(--success); }
.site-toast--warn { background: var(--warn); }
.site-toast--info { background: var(--site-theme-color); }
.site-toast.is-in { transform: none; }
html.dark .theme-icon-sun { display: none; }
html:not(.dark) .theme-icon-moon { display: none; }

html,
body {
    background-color: var(--bg);
    color: var(--fg);
}

body.site-body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    max-width: 100%;
    overflow-x: clip;
}

#appContent {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1 1 auto;
    padding-bottom: 2rem;
}

.app-page-meta {
    flex-shrink: 0;
    padding-top: 0.625rem;
    padding-bottom: 0.625rem;
}

.app-breadcrumb,
.app-breadcrumb-item,
.app-page-meta > div {
    flex: 1 1 auto;
    min-width: 0;
}

.app-breadcrumb-list {
    display: flex;
    align-items: center;
    min-width: 0;
    gap: 0.25rem;
    flex-wrap: nowrap;
    overflow: hidden;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: var(--site-meta-font-size);
    line-height: var(--site-meta-line-height);
}

@media (min-width: 768px) {
    .app-breadcrumb-list {
        flex-wrap: wrap;
        overflow: visible;
    }
}

.app-breadcrumb-item {
    min-width: 0;
}

.app-breadcrumb-item:not(.app-breadcrumb-item--current) {
    flex-shrink: 0;
}

.app-breadcrumb-item--current {
    flex: 1 1 auto;
    overflow: hidden;
}

@media (min-width: 768px) {
    .app-breadcrumb-item--current {
        flex: 0 1 auto;
        max-width: 100%;
    }
}

.app-breadcrumb-sep {
    display: flex;
    width: 1rem;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    color: var(--muted-2);
}

.app-breadcrumb-text {
    display: block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: var(--site-meta-font-size);
    line-height: var(--site-meta-line-height);
    color: var(--muted);
    text-decoration: none;
}

@media (max-width: 767.98px) {
    .app-breadcrumb-item:not(.app-breadcrumb-item--current) .app-breadcrumb-text {
        max-width: 5.5rem;
    }
}

a.app-breadcrumb-text:hover {
    color: var(--fg);
}

.page-seo-header {
    padding-top: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.page-seo-header h1 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--fg);
}

@media (min-width: 640px) {
    .page-seo-header h1 {
        font-size: 1.5rem;
    }
}

.page-seo-header p {
    margin: 0.5rem 0 0;
    font-size: 0.875rem;
    color: var(--muted);
}

.site-footer {
    flex-shrink: 0;
    margin-top: 2rem;
    background: var(--footer-bg);
    color: #f5f5f7;
}

.site-footer-inner {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.site-footer-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

@media (min-width: 768px) {
    .site-footer-row {
        flex-direction: row;
        justify-content: space-between;
    }
}

.site-footer-copy,
.site-footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: var(--site-meta-font-size);
    color: rgba(255, 255, 255, 0.62);
}

.site-footer-links {
    align-items: flex-end;
}

.site-footer-rule {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
}

@media (min-width: 768px) {
    .site-footer-rule {
        display: none;
    }
}

.site-footer-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.site-footer-nav a {
    color: rgba(255, 255, 255, 0.62);
    text-decoration: none;
}

.site-footer-nav a:hover {
    color: #fff;
}

.site-footer-sep {
    color: rgba(255, 255, 255, 0.32);
}

@media (hover: hover) {

    a:hover,
    button:hover,
    [role="button"]:hover,
    input[type="submit"]:hover,
    input[type="button"]:hover,
    summary:hover,
    label:hover {
        opacity: 1 !important;
        filter: none !important;
        text-decoration: inherit !important;
    }

    a:hover:not(.ld-push-start),
    button:hover:not(.ld-push-start):not(.home-back-top):not(.home-trust-nav),
    [role="button"]:hover:not(.ld-push-start),
    input[type="submit"]:hover,
    input[type="button"]:hover,
    summary:hover,
    label:hover {
        transform: none !important;
    }
}