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.m{color:#e3b58c}.reader .hl .c,.reader .hl .c1,.reader .hl .cm,.reader .hl .ch{color:#8a93a3;font-style:italic}@media (max-width:767px){.reader .code{margin-left:-20px;margin-right:-20px}}.reader p.code-sec{border-left:2px solid var(--signal);color:var(--ink-2);margin:36px 0 12px;padding-left:12px}.reader p.code-sec.basic,.reader p.code-sec.print{border-left-color:var(--line)}.reader details.fold{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:14px 0 20px}.reader details.fold>summary{cursor:pointer;min-height:44px;color:var(--ink-2);align-items:center;gap:10px;font-size:14px;list-style:none;display:flex}.reader details.fold>summary::-webkit-details-marker{display:none}.reader details.fold>summary .open{color:var(--link);margin-left:auto}.reader details.fold>summary .open:before{content:"▸ "}.reader details.fold[open]>summary .open:before{content:"▾ "}.reader .video-block{margin:24px 0}.reader .video-embed{aspect-ratio:16/9;background:#1b2534;position:relative}.reader .video-embed iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.reader .video-block figcaption{text-align:left;border-bottom:3px solid var(--signal);padding-bottom:8px}.reader .hosted-video,.reader .video-locked{aspect-ratio:16/9;background:#1b2534;position:relative}.reader .video-locked{color:#e8ecf2;justify-content:center;align-items:center;display:flex}.reader .video-locked p{margin:0;font-size:15px}.reader .video-hosted-note{border:1px solid var(--line-strong);padding:12px 14px;font-size:14px}.reader .video-missing{border:1px dashed var(--warn);color:var(--warn);padding:12px 14px;font-size:14px}.reader .self-check{border-top:2px solid var(--ink);margin:28px 0 8px;font-size:15px}.reader .self-check-title{justify-content:space-between;margin:0;padding:10px 0;font-weight:600;display:flex}.reader .self-check ul{margin:0;padding:0;list-style:none}.reader .self-check li{border-top:1px solid var(--line);margin:0}.reader .self-check label{cursor:pointer;align-items:flex-start;gap:12px;min-height:44px;padding:11px 0;display:flex}.reader .self-check input{width:18px;height:18px;accent-color:var(--done);flex-shrink:0;margin-top:3px}.reader section[id],.reader figure[id]{scroll-margin-top:80px}.zoom-view{z-index:50;text-align:center;cursor:zoom-out;background:#080c14e6;padding:32px 16px;position:fixed;inset:0;overflow:auto}.zoom-view img{background:#f2f1ed;max-width:none}.zoom-view p{color:#e8e6e0;font-size:14px}