.wt-in{z-index:1;position:relative}.wt-grid{grid-template-columns:minmax(0,1fr) 320px;align-items:start;gap:26px;margin-top:16px;display:grid}@media (max-width:900px){.wt-grid{grid-template-columns:minmax(0,1fr)}.wt-side{max-height:none;overflow-y:visible}}.wt-player{aspect-ratio:16/9;border-radius:var(--r-media);background:#0d141d;overflow:hidden}.wt-player video{background:#000;width:100%;height:100%;display:block}.wt-wait,.wt-gate{color:#cdd6e0;text-align:center;align-content:center;place-items:center;gap:12px;padding:24px;display:grid}.wt-gate p{margin:0;font-size:14.5px;line-height:2}.wt-gate .cs-cta{padding-inline:26px}.wt-gate-do{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;display:flex}.wt-gate .cs-cta-ghost{color:#fff;border-color:#ffffff57}.wt-gate .cs-cta-ghost:hover{color:#fff;background:#ffffff17}@media (max-width:480px){.wt-gate-do{width:100%}.wt-gate-do>.cs-cta{flex:100%;justify-content:center}}.wt-gate-more{color:#9fb0c0;text-underline-offset:3px;font-size:13px;text-decoration:underline}.wt-player.wt-audio{aspect-ratio:auto;gap:16px;padding:24px 22px;display:grid}.wt-player.wt-audio-gate{aspect-ratio:auto;min-height:220px}.wt-au-head{align-items:center;gap:8px;display:flex}.wt-au-head svg{color:var(--accent)}.wt-au-head b{color:#fff;font-size:14px}.wt-au-head i{color:#9fb0c0;font-variant-numeric:tabular-nums;font-size:12px;font-style:normal}.wt-au-wave{cursor:pointer;touch-action:manipulation;border-radius:10px;align-items:center;gap:2px;min-width:0;height:56px;display:flex;overflow:hidden}.wt-au-wave:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.wt-au-bar{pointer-events:none;background:#ffffff29;border-radius:2px;flex:1;min-width:2px;transition:background .15s}.wt-au-bar.p{background:var(--accent)}@media (prefers-reduced-motion:no-preference){.wt-au-bar.live{animation:.7s ease-in-out infinite po-live}}.wt-au-foot{align-items:center;gap:14px;display:flex}.wt-au-ctls{align-items:center;gap:10px;display:flex}.wt-au-ctl{color:#e6edf3;cursor:pointer;width:44px;height:44px;transition:background .2s, scale .15s var(--ease);background:0 0;border:1px solid #ffffff29;border-radius:50%;flex:none;place-items:center;display:grid}.wt-au-ctl:hover{background:#ffffff14}.wt-au-ctl:active{scale:.93}.wt-au-ctl:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.wt-au-play{background:var(--accent-btn);color:#fff;border:none;width:54px;height:54px}.wt-au-play:hover{background:var(--accent-btn-hover)}.wt-au-time{color:#9fb0c0;font-variant-numeric:tabular-nums;margin-inline-start:auto;font-size:12px}.wt-au-rate{color:#cdd6e0;font-variant-numeric:tabular-nums;cursor:pointer;background:0 0;border:1px solid #ffffff29;border-radius:999px;flex:none;min-width:44px;height:32px;padding-inline:10px;font-size:12px;transition:background .2s}.wt-au-rate:hover{background:#ffffff14}.wt-au-rate:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (max-width:560px){.wt-au-bar:nth-child(2n){display:none}.wt-au-foot{flex-wrap:wrap}.wt-au-time{text-align:center;flex-basis:100%;order:3;margin-inline-start:0}}.wt-title{color:var(--ink);margin:16px 0 4px;font-size:20px}.wt-desc{color:var(--body-c);margin:0;font-size:14px;line-height:2.1}.wt-side{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow);gap:14px;max-height:min(72vh,640px);padding:16px;display:grid;overflow-y:auto}.wt-ch h2{color:var(--ink);align-items:center;gap:8px;margin:0 0 6px;font-size:13.5px;display:flex}.wt-ch h2 i{background:var(--accent-soft);width:22px;height:22px;color:var(--accent-ink);border-radius:7px;place-items:center;font-size:12px;font-style:normal;font-weight:700;display:inline-grid}.wt-ch ul{grid-template-columns:minmax(0,1fr);gap:2px;margin:0;padding:0;list-style:none;display:grid}.wt-lesson{min-width:0;color:var(--body-c);border-radius:10px;align-items:center;gap:8px;padding:8px 9px;font-size:13px;text-decoration:none;transition:background .15s;display:flex}.wt-lesson:hover{background:var(--paper)}.wt-lesson.on{background:var(--accent-soft);color:var(--accent-ink);font-weight:700}.wt-lesson-ic{background:var(--paper);width:22px;height:22px;color:var(--faint);border-radius:50%;flex:none;place-items:center;display:inline-grid}.wt-lesson.on .wt-lesson-ic{background:var(--surface);color:var(--accent-ink)}.wt-done{color:var(--ok)}.wt-lesson-t{-webkit-line-clamp:2;line-clamp:2;overflow-wrap:anywhere;-webkit-box-orient:vertical;flex:1;min-width:0;line-height:1.6;display:-webkit-box;overflow:hidden}.wt-lesson em{color:var(--ok);flex:none;font-size:11px;font-style:normal}.wt-lesson i{color:var(--faint);direction:ltr;flex:none;font-size:11.5px;font-style:normal}.wt-lesson-att{color:var(--faint);flex:none;display:inline-flex}.wt-att{margin-top:18px}.wt-title-read{margin-top:0;font-size:23px}.wt-read{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);gap:18px;margin-top:16px;padding:22px 24px;display:grid}.wt-read-wait{place-items:center;min-height:180px}.wt-read-gate{aspect-ratio:auto;min-height:220px;margin-top:16px}.wt-read-txt h2{color:var(--ink);margin:0 0 8px;font-size:16px}.wt-read-body{color:var(--body-c);white-space:pre-line;font-size:14.5px;line-height:2.3}.wt-read-fig{margin:0}.wt-read-fig img{border:1px solid var(--line-soft);border-radius:12px;max-width:100%;display:block}.wt-read-fig figcaption{color:var(--faint);margin-top:8px;font-size:12px;line-height:2}.wt-att-note{cursor:default}.wt-att-note .po-att-p{white-space:pre-line}.wt-handout{border:1px solid #182c4124;border-inline-start:3px solid var(--accent);background:#faf3e28c;border-radius:10px;align-items:center;gap:12px;margin-bottom:10px;padding:14px 16px;display:flex}.wt-handout-ic{color:#fff;background:#182c41;border-radius:9px;flex:none;place-items:center;width:38px;height:38px;display:grid}.wt-handout-tx{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.wt-handout-tx b{color:var(--ink);font-size:14px}.wt-handout-t{color:var(--body-c);font-size:13px}.wt-handout-tx i{color:var(--faint);font-size:12px;font-style:normal}.wt-handout-do{flex-wrap:wrap;flex:none;gap:8px;display:flex}.wt-handout-b{color:#182c41;height:34px;transition:background .2s var(--ease), border-color .2s var(--ease);border:1px solid #182c4133;border-radius:8px;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.wt-handout-b:hover{background:#182c410f;border-color:#182c4159}.wt-handout-b.primary{color:#fff;background:#182c41;border-color:#0000}.wt-handout-b.primary:hover{background:#223a55}[data-theme=dark] .wt-handout{background:#ffffff0d;border-color:#ffffff24}[data-theme=dark] .wt-handout-b{color:#eef2f6;border-color:#ffffff3d}[data-theme=dark] .wt-handout-b.primary{color:#182c41;background:#eef2f6}@media (max-width:560px){.wt-handout{flex-wrap:wrap}.wt-handout-do{width:100%}.wt-handout-b{flex:1;justify-content:center}}