/* Sans for reading and navigation; WenKai is reserved for display copy. */
body.quant666-redesign {
    --ui-font: QuantSans, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    --heading-font: var(--ui-font);
    --reading-font: var(--ui-font);
    --display-font: QuantWenKai, "Kaiti SC", var(--ui-font);
    font-family: var(--ui-font);
}
body.quant666-redesign .quant-site {
    font-family: var(--ui-font);
}
body.quant666-redesign .quant-site :is(h1, h2, h3, h4) {
    font-family: var(--heading-font);
    font-weight: 700;
    letter-spacing: 0;
}
.quant-site .site-header .brand {
    gap: 10px;
    white-space: nowrap;
}
.quant-site .site-header .brand img {
    width: 36px;
    height: 36px;
    mix-blend-mode: normal;
}
.quant-site .site-header .brand-name {
    font-family: var(--ui-font);
    font-size: 19px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: .035em;
}
.quant-site .site-header .brand-site {
    font-size: 11px;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: .035em;
    color: #52647a;
    margin-top: 3px;
}
body.quant666-redesign .quant-site .marketing-hero h1 {
    font-family: var(--display-font);
    font-weight: 500;
    letter-spacing: 0;
}
.quant-site .marketing-card blockquote,
.quant-site .marketing-origin-quote {
    font-family: var(--display-font);
    font-weight: 500;
}
body.quant666-redesign .modal-dialog .modal-title,
body.quant666-redesign #modal_pay_uservip.qs-checkout .qs-checkout-heading h2,
body.quant666-redesign .quant666-contact-title,
.quant-site .qs-course-section h2,
.quant-site .qs-course-start strong,
.quant-site .qs-lesson-heading > div > a,
.quant-site .qs-lesson-finish .qs-finish-title,
.quant-site .art-title,
.quant-site .charge-cover-art > strong {
    font-family: var(--heading-font);
    font-weight: 700;
}
.quant-site .qs-step p,
.quant-site .data-dashboard .data-board-head > div > p,
.quant-site .charge-benefit p {
    font-family: var(--reading-font);
}
.quant-site .marketing-hero p,
.quant-site .marketing-section-head p,
.quant-site .marketing-offer-heading p,
.quant-site .marketing-feature-section .marketing-card p,
.quant-site .marketing-flow p,
.quant-site .marketing-split p,
.quant-site .page-heading > p,
.quant-site .hub-faq details > p {
    font-family: var(--reading-font);
    font-size: 16px;
    line-height: 1.85;
}
.quant-site .marketing-feature-section .marketing-card p,
.quant-site .page-heading > p,
.quant-site .hub-faq details > p {
    color: #52647a;
}
body.quant666-redesign .quant-site .marketing-card h3 {
    font-size: 23px;
    line-height: 1.5;
}
body.quant666-redesign .quant-site .marketing-offer-heading h2 {
    font-size: 30px;
}
.quant-site .course-info > p,
.quant-site .directory-card p,
.quant-site .qs-course-start p {
    font-family: var(--reading-font);
    font-size: 15px;
    line-height: 1.8;
}
.quant-site .qs-series-directory strong {
    font-family: var(--ui-font);
    font-weight: 700;
}
.quant-site .qs-lesson-context,
.quant-site .qs-lesson-finish,
.quant-site .qs-after-player {
    font-family: var(--ui-font);
}
.quant-site .marketing-price,
.quant-site .marketing-preview-title > span,
.quant-site .qs-table {
    font-variant-numeric: tabular-nums;
}
.quant-site .site-article-card .wp-posts-content {
    font-family: var(--reading-font);
    font-size: 17px;
    line-height: 1.85;
    color: #34465c;
}
/* Keep the player and images wide, while limiting continuous text line length. */
.quant-site .site-article-card .wp-posts-content > :is(h2, h3, ul, ol, blockquote),
.quant-site .site-article-card .wp-posts-content > p:not(:has(img, video, iframe, .quant-vod-box)) {
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.quant-site .site-native-content .wp-posts-content {
    font-size: 17px;
}
@media (max-width: 700px) {
    .quant-site .site-header .brand { gap: 8px; }
    .quant-site .site-header .brand img { width: 32px; height: 32px; }
    .quant-site .site-header .brand-name {
        font-size: 16px;
        line-height: 1.3;
        letter-spacing: .025em;
    }
    .quant-site .site-header .brand-site {
        font-size: 11px;
        line-height: 1.4;
        letter-spacing: 0;
    }
    .quant-site .header-sign-link { font-size: 12px; }
    .quant-site .site-article-card .wp-posts-content,
    .quant-site .site-native-content .wp-posts-content {
        font-size: 16px;
        line-height: 1.85;
    }
    body.quant666-redesign .quant-site .marketing-offer-heading h2 { font-size: 27px; }
    body.quant666-redesign .quant-site .marketing-card h3 { font-size: 22px; }
    .quant-site .qs-course-section .course-info p { font-size: 15px; }
}