.bb-main{padding-bottom:72px}.bb-back{display:inline-block;font-size:14px;margin-bottom:20px;color:var(--mute)}
.bb-main .page-head{padding-bottom:24px}.bb-main .page-head h1{margin-bottom:12px}.bb-date{font-size:15px;color:var(--mute);margin-top:12px}
.bb-main .pd-langbar{flex-wrap:wrap;gap:12px;margin-bottom:26px}.bb-main .reader-trigger{margin-left:auto}
.bb-notice{font-size:14px;color:var(--mute);padding:16px 20px;border-left:2px solid var(--amber);background:#f5f3ed;line-height:1.8}
.bb-main .bb-en{display:none}.bb-main .bb-zh{display:inline}
body[data-lang="en"] .bb-main .bb-zh{display:none}body[data-lang="en"] .bb-main .bb-en{display:inline}
body[data-lang="bi"] .bb-main .bb-en{display:block;font-size:.9em;color:var(--mute);margin-top:6px}
.before-bitcoin-page .bb-editorial .reading-zh::before{content:"中文"}.before-bitcoin-page .bb-editorial .reading-en::before{content:"English"}
.bb-section{margin-top:36px;padding-top:28px;border-top:1px solid var(--line);scroll-margin-top:90px}.bb-section h2{font-size:23px;font-weight:600;margin:0 0 20px;line-height:1.45}.bb-section h3{font-size:18px;margin-bottom:14px}
.bb-main .pd-body{font-size:var(--reading-size,18px);line-height:1.9}.bb-citations{font-size:13px;color:var(--mute);margin-top:12px}.bb-citations a{margin-left:5px}
.bb-intro{margin:24px 0 32px}.bb-entries{border-top:1px solid var(--line)}.bb-entry{display:grid;grid-template-columns:170px minmax(0,1fr);gap:28px;padding:30px 0;border-bottom:1px solid var(--line)}
.bb-entry-date{font-size:14px;color:var(--mute);padding-top:6px;line-height:1.8}.bb-entry h2{font-size:25px;margin:0 0 6px}.bb-entry p{font-size:16px;line-height:1.85;margin:8px 0}.bb-author{color:var(--mute)}.bb-entry-link{display:block;font-size:14px;color:var(--amber-deep);margin-top:14px}
.bb-entry:hover h2{color:var(--amber-deep)}.bb-entry:focus-visible{outline:2px solid var(--amber-deep);outline-offset:5px}.bb-excerpt blockquote{margin:16px 0;padding:8px 0 8px 20px;border-left:3px solid var(--amber)}
.bb-sources ol{padding-left:24px}.bb-sources li{margin:0 0 20px;padding-left:5px;overflow-wrap:anywhere;scroll-margin-top:100px}.bb-sources p{font-size:14px;color:var(--mute);line-height:1.8;margin-top:6px}.bb-related{padding-left:22px}.bb-related li{margin-bottom:12px;line-height:1.8}.bb-end{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;margin-top:38px;font-size:15px}
@media(max-width:650px){.bb-entry{grid-template-columns:1fr;gap:8px;padding:24px 0}.bb-entry-date{padding-top:0}.bb-main .pd-langbar{gap:8px}.bb-main .pd-langbar .pl{display:none}.bb-main .reader-trigger{font-size:13px}.bb-section h2{font-size:21px}.bb-notice{padding:12px 15px}}