/* Only article list cards; the theme's header, background, footer and article pages keep their styles. */
#main.article-list .bt-article-card {
    --bt-text: #f2f3f5;
    --bt-muted: #c6c9d0;
    --bt-line: rgba(245, 246, 250, .9);
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 38%) minmax(0, 1fr);
    align-items: stretch;
    gap: 30px;
    padding: 19px 20px;
    margin: 0 0 39px;
    min-height: 260px;
    border: 2px solid var(--bt-line);
    border-radius: 14px;
    background: rgba(14, 16, 19, .94);
    color: var(--bt-text);
    box-shadow: none;
    overflow: visible;
    isolation: isolate;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    transition: border-color .22s ease, box-shadow .22s ease;
}
#main .bt-article-card::after {
    content: "";
    position: absolute;
    z-index: -1;
    left: 25px;
    right: 25px;
    bottom: -9px;
    height: 13px;
    border: 2px solid var(--bt-line);
    border-top: 0;
    border-radius: 0 0 14px 14px;
    pointer-events: none;
}
#main .bt-article-card:focus-within { z-index: 2; }
#main .bt-card-cover {
    position: relative;
    display: block;
    align-self: stretch;
    min-width: 0;
    min-height: 220px;
    border-radius: 11px;
    overflow: hidden;
    background: #252d35;
    color: #fff;
}
#main .bt-card-cover > img {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    max-height: none;
    margin: 0;
    object-fit: cover;
    transition: transform .4s ease, filter .4s ease;
}
#main .bt-card-cover:hover > img,
#main .bt-card-cover:focus-visible > img { transform: scale(1.045); filter: brightness(1.08); }
#main .bt-cover-action {
    position: absolute;
    inset: auto 0 0;
    display: flex;
    justify-content: space-between;
    padding: 25px 16px 12px;
    background: linear-gradient(transparent, rgba(0, 0, 0, .65));
    color: #fff;
    font-size: 12px;
    opacity: 0;
    transform: translateY(5px);
    transition: opacity .2s ease, transform .2s ease;
}
#main .bt-card-cover:hover .bt-cover-action,
#main .bt-card-cover:focus-visible .bt-cover-action { opacity: 1; transform: none; }
#main .bt-cover-placeholder {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    height: 100%;
    min-height: 220px;
    padding: 28px;
    background: radial-gradient(circle at 90% 0, #5b756e 0, transparent 55%), linear-gradient(130deg, #202833, #303b46);
}
#main .bt-cover-placeholder > span { font-size: 12px; letter-spacing: 4px; color: #d4e9df; }
#main .bt-cover-placeholder > strong { font-size: 24px; line-height: 1.6; overflow-wrap: anywhere; }
#main .bt-card-body { display: flex; flex-direction: column; justify-content: center; min-width: 0; padding: 9px 6px 9px 0; }
#main .bt-card-tags { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; min-height: 23px; margin-bottom: 7px; }
#main .bt-tag-pill {
    --bt-tag: #c3b8fa;
    --bt-tag-rgb: 195, 184, 250;
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 23px;
    max-width: 100%;
    padding: 2px 11px 2px 9px;
    border: 1px solid #d8dce2;
    border-radius: 99px;
    background: transparent;
    color: #f6f6f7;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    transition: transform .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease;
}
#main .bt-tag-pill[data-tone="1"] { --bt-tag: #ffacb9; --bt-tag-rgb: 255, 172, 185; }
#main .bt-tag-pill[data-tone="2"] { --bt-tag: #abed91; --bt-tag-rgb: 171, 237, 145; }
#main .bt-tag-pill[data-tone="3"] { --bt-tag: #79e5df; --bt-tag-rgb: 121, 229, 223; }
#main .bt-tag-name { overflow-wrap: anywhere; }
#main .bt-tag-ring { position: relative; flex-shrink: 0; width: 11px; height: 11px; border: 1.5px solid var(--bt-tag); border-radius: 50%; transition: transform .2s ease; }
#main .bt-tag-ring::after { content: ""; position: absolute; inset: 2px; border-radius: 50%; background: var(--bt-tag); }
#main .bt-tag-pill:hover,
#main .bt-tag-pill:focus-visible {
    z-index: 5;
    color: #fff;
    border-color: var(--bt-tag);
    background: rgba(var(--bt-tag-rgb), .15);
    box-shadow: 0 0 14px rgba(var(--bt-tag-rgb), .16);
    transform: translateY(-3px);
    text-decoration: none;
}
#main .bt-tag-pill:hover .bt-tag-ring,
#main .bt-tag-pill:focus-visible .bt-tag-ring { transform: scale(1.15); }
#main .bt-tag-tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    width: max-content;
    max-width: 230px;
    padding: 7px 10px;
    border: 1px solid rgba(var(--bt-tag-rgb), .55);
    border-radius: 7px;
    background: #20242b;
    color: #fff;
    font-size: 11px;
    font-weight: 400;
    line-height: 1.6;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(4px);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
#main .bt-tag-tooltip::after { content: ""; position: absolute; top: 100%; left: 14px; border: 5px solid transparent; border-top-color: #20242b; }
#main .bt-tag-pill:hover .bt-tag-tooltip,
#main .bt-tag-pill:focus-visible .bt-tag-tooltip { opacity: 1; visibility: visible; transform: none; }
#main .bt-card-sticky { padding: 1px 8px; border-radius: 99px; background: #edb66b; color: #1c1710; font-size: 11px; }
#main .bt-card-heading { margin: 0 0 7px; padding: 0; font-size: 18px; line-height: 1.55; }
#main .bt-card-heading { margin-top: 0 !important; }
#main .bt-card-heading::before, #main .bt-card-heading::after { display: none; }
#main .bt-card-heading .bt-card-title { display: inline; color: var(--bt-text); font-size: inherit; font-weight: 650; line-height: inherit; letter-spacing: 0; overflow-wrap: anywhere; text-decoration: none; transition: color .2s ease; }
#main .bt-card-heading .bt-card-title:hover { color: #98e6d6; letter-spacing: 0; }
#main .bt-card-excerpt { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; margin: 0 0 21px; padding: 0; color: #e2e3e6; font-size: 13px; font-weight: 400; line-height: 1.8; overflow-wrap: anywhere; }
#main .bt-card-footer { display: flex; align-items: center; gap: 16px; min-height: 48px; margin-top: 1px; padding: 0 8px; }
#main .bt-author-avatar { flex: 0 0 38px; display: block; width: 38px; height: 38px; border: 1px solid #f3f3f6; border-radius: 3px; transform: rotate(-45deg); overflow: hidden; background: #30343c; transition: border-color .2s ease; }
#main .bt-author-avatar > img { display: block; width: 54px; height: 54px; max-width: none; margin: -9px; border-radius: 0; object-fit: cover; transform: rotate(45deg); }
#main .bt-author-avatar:hover { border-color: #98e6d6; }
#main .bt-card-meta { display: grid; gap: 5px; min-width: 0; color: var(--bt-muted); font-size: 12px; line-height: 1.65; }
#main .bt-card-stats, #main .bt-card-byline { display: flex; align-items: center; flex-wrap: wrap; gap: 5px 15px; }
#main .bt-card-stats > span, #main .bt-card-stats > a { display: inline-flex; align-items: center; gap: 6px; }
#main .bt-card-meta a { color: #edeef0; text-decoration: none; }
#main .bt-card-meta a:hover { color: #98e6d6; }
#main .bt-meta-icon { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
#main .bt-card-byline { gap: 5px 12px; }
#main .bt-author-name { overflow-wrap: anywhere; }
#main .bt-author-name > span { font-weight: 700; }
#main .bt-meta-dot { flex-shrink: 0; width: 5px; height: 5px; border-radius: 50%; background: #ff647e; }
#main .bt-card-byline time { color: #d7d9df; font-size: 11px; }
#main .bt-article-card a:focus-visible { outline: 2px solid #98e6d6; outline-offset: 4px; }
@media (max-width: 900px) {
    #main.article-list .bt-article-card { grid-template-columns: minmax(0, 37%) minmax(0, 1fr); gap: 22px; padding: 17px; min-height: 240px; }
    #main .bt-card-cover { min-height: 204px; }
    #main .bt-card-body { padding: 3px 0; }
    #main .bt-card-tags { gap: 7px 8px; }
    #main .bt-card-heading { font-size: 17px; }
}
@media (max-width: 620px) {
    #main.article-list .bt-article-card { grid-template-columns: minmax(0, 1fr); gap: 0; padding: 12px; margin-bottom: 30px; border-radius: 13px; }
    #main .bt-article-card::after { left: 18px; right: 18px; bottom: -7px; height: 10px; border-radius: 0 0 11px 11px; }
    #main .bt-card-cover { min-height: 0; height: auto; aspect-ratio: 16 / 9; border-radius: 8px; }
    #main .bt-card-body { padding: 19px 6px 10px; }
    #main .bt-card-tags { gap: 8px; margin-bottom: 10px; }
    #main .bt-tag-pill { min-height: 28px; padding: 3px 10px; font-size: 11px; }
    #main .bt-tag-tooltip { max-width: 190px; }
    #main .bt-card-heading { font-size: 18px; margin-bottom: 7px; }
    #main .bt-card-excerpt { font-size: 12px; margin-bottom: 20px; }
    #main .bt-card-footer { padding: 0 7px; gap: 15px; }
    #main .bt-card-meta { font-size: 11px; }
    #main .bt-cover-placeholder { min-height: 0; }
}
@media (prefers-reduced-motion: reduce) {
    #main .bt-article-card, #main .bt-article-card * { transition: none !important; }
}