.teach-body{--tc-live: var(--good-ink, #34d399);--tc-warn: var(--warn-ink, #fbbf24);--tc-miss: var(--bad-ink, #fb7185);--tc-hover: rgba(var(--ink, 255, 255, 255), .03);display:flex;flex-direction:column;gap:22px}#teach-acts:empty{display:none}#teach-acts{flex:none}.tc-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:12px;border:0;box-shadow:inset 0 0 0 1px var(--line-2);background:none;color:var(--text-2);cursor:pointer;text-decoration:none;font:500 calc(13.5px * var(--fs, 1))/1 var(--font);white-space:nowrap;transition:color .2s,box-shadow .2s,background .2s,transform .2s var(--ease)}.tc-btn:hover{color:var(--text);box-shadow:inset 0 0 0 1px var(--line-3);background:rgba(var(--ink, 255, 255, 255),.03)}.tc-btn.is-primary{height:42px;padding:0 18px;box-shadow:none;background:var(--text);color:var(--bg);font-weight:600;font-size:calc(14.5px * var(--fs, 1));letter-spacing:-.01em}.tc-btn.is-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px -12px color-mix(in srgb,var(--pc) 80%,transparent)}.tc-btn svg{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-btn.is-primary svg{stroke-width:2.4}.tc-btn:focus-visible,.teach-body a:focus-visible,.teach-body button:focus-visible{outline:2px solid var(--pc);outline-offset:2px}.tc-card{position:relative;border-radius:20px;background:var(--card, var(--bg-1));box-shadow:inset 0 0 0 1px var(--line-2)}.tc-k{display:inline-flex;align-items:center;gap:6px;margin:0;font:500 calc(11px * var(--fs, 1))/1 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--text-3)}.tc-k svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}.tc-muted{margin:14px 0 0;font-size:calc(13.5px * var(--fs, 1));line-height:1.55;color:var(--text-3)}.tc-dot{width:7px;height:7px;flex:none;border-radius:50%;background:currentColor;animation:tc-ping 2s var(--ease) infinite}@keyframes tc-ping{0%{box-shadow:0 0 color-mix(in srgb,currentColor 55%,transparent)}70%,to{box-shadow:0 0 0 7px transparent}}.tc-status{display:inline-flex;flex-wrap:wrap;align-items:center;gap:6px 12px;font-size:calc(14px * var(--fs, 1))}.tc-status>span{display:inline-flex;align-items:center;gap:7px}.tc-status b{color:var(--text);font-weight:600}.tc-status .tc-st-live,.tc-status .tc-st-live b{color:var(--good-ink, #34d399)}.tc-sep{width:3px;height:3px;border-radius:50%;background:var(--text-3)}.tc-now{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;padding:26px 28px;background:radial-gradient(90% 140% at 0% 0%,color-mix(in srgb,var(--tc-live) 10%,transparent),transparent 60%),var(--card, var(--bg-1));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--tc-live) 26%,transparent);animation:tc-rise .5s var(--ease) both}.tc-now.is-wait{background:var(--card, var(--bg-1));box-shadow:inset 0 0 0 1px var(--line-2)}@keyframes tc-rise{0%{opacity:0;transform:translateY(6px)}}.tc-live-tag{display:inline-flex;align-items:center;gap:8px;margin:0;font:500 calc(11.5px * var(--fs, 1))/1 var(--mono);text-transform:uppercase;letter-spacing:.09em;color:var(--tc-live)}.tc-live-tag em{font-style:normal;color:var(--text-3)}.tc-now.is-wait .tc-live-tag{color:var(--tc-warn)}.tc-now h2{margin:14px 0 0;font-size:calc(24px * var(--fs, 1));font-weight:600;letter-spacing:-.025em;color:var(--text)}.tc-live-meta{margin:5px 0 0;font-size:calc(14px * var(--fs, 1));color:var(--text-2)}.tc-live-n{margin-top:26px;max-width:560px}.tc-big{display:flex;align-items:baseline;gap:10px;margin:0}.tc-big b{font:600 calc(44px * var(--fs, 1))/1 var(--font);letter-spacing:-.04em;color:var(--text);font-variant-numeric:tabular-nums}.tc-big span{font-size:calc(15px * var(--fs, 1));color:var(--text-2)}.tc-stack{display:flex;gap:3px;height:10px;margin-top:16px;border-radius:99px;overflow:hidden}.tc-stack i{display:block;height:100%;border-radius:3px}.tc-stack .f,.tc-legend i.f{background:var(--tc-live)}.tc-stack .p,.tc-legend i.p{background:var(--pc)}.tc-stack .i,.tc-legend i.i{background:var(--line-3)}.tc-stack .o,.tc-legend i.o{background:var(--line-2)}.tc-legend{display:flex;flex-wrap:wrap;gap:6px 20px;margin:12px 0 0;font-size:calc(13px * var(--fs, 1));color:var(--text-2)}.tc-legend span{display:inline-flex;align-items:center;gap:8px}.tc-legend b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}.tc-legend i{width:8px;height:8px;border-radius:3px}.tc-join{display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:20px;min-width:220px}.tc-code{text-align:right}.tc-code-v{display:flex;align-items:center;gap:10px;margin:10px 0 0;font:600 calc(32px * var(--fs, 1))/1 var(--mono);letter-spacing:.08em;color:var(--text)}.tc-copy{width:34px;height:34px;flex:none;border:0;border-radius:9px;display:grid;place-items:center;cursor:pointer;background:none;color:var(--text-3);box-shadow:inset 0 0 0 1px var(--line-2);transition:color .2s,box-shadow .2s}.tc-copy:hover{color:var(--text);box-shadow:inset 0 0 0 1px var(--line-3)}.tc-copy.is-ok{color:var(--tc-live);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--tc-live) 40%,transparent)}.tc-copy svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-next{display:flex;align-items:center;gap:18px;padding:20px 22px;animation:tc-rise .5s var(--ease) both}.tc-next-ic{width:44px;height:44px;flex:none;border-radius:13px;display:grid;place-items:center;color:var(--tc-warn);background:color-mix(in srgb,var(--tc-warn) 12%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--tc-warn) 24%,transparent)}.tc-next-ic svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-next-t{min-width:0;flex:1}.tc-next-t b{display:block;font-size:calc(15.5px * var(--fs, 1));font-weight:600;letter-spacing:-.015em;color:var(--text)}.tc-next-t span{display:block;margin-top:3px;font-size:calc(13.5px * var(--fs, 1));color:var(--text-2)}.tc-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:22px;align-items:start}.tc-list{overflow:hidden}.tc-list-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 14px 14px 20px;border-bottom:1px solid var(--line)}.tc-tabs{display:inline-flex;gap:2px;padding:3px;border-radius:10px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line)}.tc-tabs button{height:28px;padding:0 12px;border:0;border-radius:7px;display:inline-flex;align-items:center;gap:7px;cursor:pointer;background:none;color:var(--text-3);font:500 calc(13px * var(--fs, 1))/1 var(--font);transition:color .2s,background .2s,box-shadow .2s}.tc-tabs button small{font:500 11.5px/1 var(--mono);color:var(--text-3)}.tc-tabs button[aria-selected=true]{background:var(--bg-1);color:var(--text);box-shadow:0 1px 2px #0003,inset 0 0 0 1px var(--line-2)}.tc-all{display:inline-flex;align-items:center;gap:2px;height:30px;padding:0 6px 0 10px;border-radius:8px;color:var(--text-3);text-decoration:none;font:500 calc(13px * var(--fs, 1))/1 var(--font);transition:color .2s,background .2s}.tc-all:hover{color:var(--text);background:var(--tc-hover)}.tc-all svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-rows{list-style:none;margin:0;padding:0}.tc-row{position:relative;display:flex;align-items:center;gap:14px;padding:14px 20px;border-bottom:1px solid var(--line);transition:background .15s}.tc-row:last-child{border-bottom:0}.tc-row:hover{background:var(--tc-hover)}.tc-av{width:36px;height:36px;flex:none;border-radius:10px;display:grid;place-items:center;font:600 13px/1 var(--font);letter-spacing:-.01em;color:var(--c);background:color-mix(in srgb,var(--c) 13%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--c) 22%,transparent)}.tc-st{width:8px;height:8px;flex:none;margin:0 14px 0 4px;border-radius:50%;background:var(--line-3)}.tc-st.is-live{background:var(--tc-live)}.tc-st.is-waiting{background:var(--text-3)}.tc-row-t{position:static;min-width:0;flex:1;color:inherit;text-decoration:none}.tc-row-t:after{content:"";position:absolute;inset:0}.tc-row-t:focus-visible{outline:0}.tc-row-t:focus-visible:after{outline:2px solid var(--pc);outline-offset:-2px}.tc-row-t b{display:flex;align-items:center;gap:8px;min-width:0;font-size:calc(14.5px * var(--fs, 1));font-weight:600;letter-spacing:-.01em;color:var(--text)}.tc-row-t b>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-row-t>span{display:block;margin-top:3px;font-size:calc(13px * var(--fs, 1));color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-row-t .tc-nw{white-space:nowrap}.tc-row-t code{font:500 .95em var(--mono);letter-spacing:.04em;color:var(--text-2)}.tc-badge{display:inline-flex;align-items:center;gap:6px;flex:none;height:22px;padding:0 8px;border-radius:99px;font:500 calc(12px * var(--fs, 1))/1 var(--font);white-space:nowrap;color:var(--text-2);background:var(--bg-3, rgba(var(--ink, 255, 255, 255), .06))}.tc-badge.is-live{color:var(--tc-live);background:color-mix(in srgb,var(--tc-live) 11%,transparent)}.tc-badge.is-warn{color:var(--tc-warn);background:color-mix(in srgb,var(--tc-warn) 11%,transparent)}.tc-badge .tc-dot{width:6px;height:6px;animation:none}.tc-row-r{position:relative;display:flex;align-items:center;gap:14px;flex:none}.tc-when{font-size:calc(13px * var(--fs, 1));color:var(--text-3);white-space:nowrap;transition:opacity .15s}.tc-chip{position:absolute;right:30px;z-index:1;display:inline-flex;align-items:center;height:32px;padding:0 12px;border-radius:9px;background:var(--bg-1);color:var(--text);text-decoration:none;font:500 calc(13px * var(--fs, 1))/1 var(--font);white-space:nowrap;box-shadow:inset 0 0 0 1px var(--line-3);opacity:0;transform:translate(4px);pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease)}.tc-chip:hover{box-shadow:inset 0 0 0 1px var(--pc)}.tc-row:hover .tc-chip,.tc-row:focus-within .tc-chip{opacity:1;transform:none;pointer-events:auto}.tc-row:hover .tc-when.has-act,.tc-row:focus-within .tc-when.has-act{opacity:0}.tc-chev{display:grid;color:var(--text-3);transition:transform .2s var(--ease),color .2s}.tc-chev svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-row:hover .tc-chev{color:var(--text);transform:translate(2px)}.tc-mini{display:block;width:84px;height:5px;border-radius:99px;background:var(--line-2);overflow:hidden;--c: var(--text-3)}.tc-mini i{display:block;height:100%;width:calc(var(--p) * 100%);border-radius:inherit;background:var(--c)}.tc-mini.is-live{--c: var(--tc-live)}.tc-mini.is-miss{--c: var(--tc-miss)}.tc-frac{min-width:42px;text-align:right;font:500 calc(13px * var(--fs, 1))/1 var(--mono);color:var(--text-2);font-variant-numeric:tabular-nums}.tc-add{display:flex;align-items:center;gap:10px;padding:13px 20px;border-top:1px solid var(--line);color:var(--text-3);text-decoration:none;font:500 calc(13.5px * var(--fs, 1))/1 var(--font);transition:color .2s,background .2s}.tc-add:hover{color:var(--text);background:var(--tc-hover)}.tc-add svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tc-none{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:26px 20px 24px}.tc-none b{font-size:calc(15px * var(--fs, 1));font-weight:600;color:var(--text)}.tc-none span{max-width:420px;font-size:calc(13.5px * var(--fs, 1));line-height:1.5;color:var(--text-3)}.tc-none .tc-btn{margin-top:10px}.tc-re{padding:20px 20px 18px}.tc-re-h{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.tc-re h3{margin:0;font-size:calc(15px * var(--fs, 1));font-weight:600;letter-spacing:-.015em;color:var(--text)}.tc-re ol{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:16px}.tc-re li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px}.tc-re-n{font:500 12px/20px var(--mono);color:var(--text-3)}.tc-re p{margin:0;font-size:calc(14px * var(--fs, 1));line-height:1.4;font-weight:500;color:var(--text)}.tc-re-m{display:flex;align-items:center;gap:10px;margin-top:8px;font-size:calc(12.5px * var(--fs, 1));color:var(--text-3)}.tc-re-m>span:first-child{max-width:45%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tc-re-m .tc-mini{width:auto;flex:1}.tc-re-m b{font:600 12.5px/1 var(--mono);color:var(--tc-miss)}.tc-wide{width:100%;margin-top:20px}.tc-first{overflow:hidden}.tc-first-top{display:flex;flex-direction:column;align-items:center;text-align:center;padding:56px 28px 48px}.tc-first-ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;color:var(--pc);background:color-mix(in srgb,var(--pc) 12%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--pc) 26%,transparent)}.tc-first-ic svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.tc-first h2{margin:22px 0 0;font-size:calc(26px * var(--fs, 1));font-weight:600;letter-spacing:-.03em;color:var(--text)}.tc-first-top p{margin:8px 0 24px;font-size:calc(15px * var(--fs, 1));color:var(--text-2)}.tc-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}.tc-steps li{display:flex;gap:12px;align-items:flex-start;padding:22px 20px 26px}.tc-steps li+li{border-left:1px solid var(--line)}.tc-steps i{font:500 12px/20px var(--mono);font-style:normal;color:var(--text-3)}.tc-steps b{display:block;font-size:calc(14px * var(--fs, 1));font-weight:600;color:var(--text)}.tc-steps span{display:block;margin-top:3px;font-size:calc(13px * var(--fs, 1));line-height:1.45;color:var(--text-3)}.tc-alt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;margin-top:-8px;font-size:calc(14px * var(--fs, 1));color:var(--text-2)}.tc-alt b{color:var(--text);font-weight:600}.tc-empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;padding:52px 20px;border-radius:20px;background:var(--card, var(--bg-1));box-shadow:inset 0 0 0 1px var(--line-2)}.tc-empty h2{margin:6px 0 0;font-size:calc(20px * var(--fs, 1));font-weight:600;letter-spacing:-.025em;color:var(--text)}.tc-empty p{margin:0 0 8px;max-width:460px;font-size:calc(14px * var(--fs, 1));line-height:1.55;color:var(--text-2)}.tc-empty-ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;color:var(--pc);background:color-mix(in srgb,var(--pc) 12%,transparent);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--pc) 26%,transparent)}.tc-empty-ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.tc-skel{display:grid;grid-template-columns:1.75fr 1fr;gap:22px}.tc-skel i,.tc-skel b{display:block;border-radius:20px;background:rgba(var(--ink, 255, 255, 255),.05);animation:tc-pulse 1.4s ease-in-out infinite}.tc-skel i{grid-column:1 / -1;height:210px}.tc-skel b{height:260px}@keyframes tc-pulse{50%{opacity:.4}}.st-seg.is-unset .st-seg-thumb{opacity:0}@media (hover: none){.tc-chip{display:none}}@media (max-width: 899px){.tc-grid{grid-template-columns:1fr}.tc-now{grid-template-columns:1fr;padding:22px 20px;gap:20px}.tc-join{flex-direction:row;align-items:flex-end;min-width:0;padding-top:20px;border-top:1px solid var(--line)}.tc-code{text-align:left}.tc-skel{grid-template-columns:1fr}}@media (max-width: 620px){#teach-acts,#teach-acts .tc-btn{width:100%}.tc-big b{font-size:calc(36px * var(--fs, 1))}.tc-join{flex-direction:column;align-items:stretch}.tc-join .tc-btn{width:100%}.tc-code-v{font-size:calc(28px * var(--fs, 1))}.tc-row{padding:13px 16px;gap:12px}.tc-row-t>span{white-space:normal;line-height:1.45}.tc-list-h{padding:12px 12px 12px 16px}.tc-when,.tc-mini,.tc-chip{display:none}.tc-re-m .tc-mini{display:block}.tc-row-r{gap:10px}.tc-next{flex-wrap:wrap}.tc-next .tc-btn{width:100%}.tc-steps{grid-template-columns:1fr}.tc-steps li+li{border-left:0;border-top:1px solid var(--line)}.tc-first-top{padding:40px 18px 32px}.tc-alt{flex-direction:column;align-items:stretch}}@media (prefers-reduced-motion: reduce){.tc-dot,.tc-skel i,.tc-skel b,.tc-now,.tc-next{animation:none}}