.dck{--aqua:#7fd0e7;--aqua-soft:#bfeaff;--teal:#1f6f8b;--teal-deep:#134e64;--gold:#ffc857;--gold-soft:#ffe9a8;--gold-deep:#c8811a;--cream:#fff7e1;--coral:#ff9bbd;--green:#3aa67a;--green-deep:#2f8f66;--danger:#d3455f;--ink:#0d2f3f;--slate:#5b7480;--mist:#8c9ba6;--danger-soft:#fdecef;--green-soft:#e8f6f0;--sk-base:rgba(13,47,63,0.07);--sk-gloss:rgba(255,255,255,0.65);--ls-gold:#ffc857;--font-display:"Fraunces",Georgia,"Times New Roman","Noto Sans Thai","Leelawadee UI","Noto Sans Arabic","Hiragino Mincho ProN","Yu Mincho","Apple SD Gothic Neo","Malgun Gothic","PingFang SC","Microsoft YaHei","PingFang TC","Microsoft JhengHei",serif;--font-body:"Plus Jakarta Sans",system-ui,"Noto Sans Thai","Leelawadee UI","Noto Sans Arabic","Hiragino Sans","Yu Gothic","Apple SD Gothic Neo","Malgun Gothic","PingFang SC","Microsoft YaHei","PingFang TC","Microsoft JhengHei",sans-serif;--desk:var(--cream);--dot:rgba(13,47,63,0.11);--surf:#fff;--line:rgba(13,47,63,0.09);--track:rgba(13,47,63,0.08);--sh:0 12px 26px rgba(13,47,63,0.09);--field:var(--aqua-soft);font-family:var(--font-body);color:var(--ink);line-height:normal}[data-theme=dark] .dck{--ink:#e7eef1;--slate:#9eb3bc;--mist:#6f8590;--gold-soft:#4a3a14;--danger-soft:rgba(211,69,95,0.14);--green-soft:rgba(58,166,122,0.14);--sk-base:rgba(255,255,255,0.07);--sk-gloss:rgba(255,255,255,0.09);--desk:#0d222c;--dot:rgba(255,255,255,0.07);--surf:#163644;--line:rgba(255,255,255,0.1);--track:rgba(255,255,255,0.08);--sh:0 12px 26px rgba(0,0,0,0.3);--field:rgba(255,255,255,0.14)}.dck *,.dck :after,.dck :before{box-sizing:border-box}:where(.dck) :where(p,h1,h2,h3,ul){margin:0}:where(.dck) :where(button){font:inherit;color:inherit}.dck .em{display:block;flex:0 0 auto}.dck .tn-blue,.dck.tn-blue{--tone:#18607c;--tone-g:linear-gradient(145deg,#2f9cbd,#18607c);--tint:rgba(127,208,231,0.26)}.dck .tn-teal,.dck.tn-teal{--tone:#155f42;--tone-g:linear-gradient(145deg,#2e9a6c,#155f42);--tint:rgba(58,166,122,0.16)}[data-theme=dark] .dck .tn-blue,[data-theme=dark] .dck.tn-blue{--tone:#9edcee}[data-theme=dark] .dck .tn-teal,[data-theme=dark] .dck.tn-teal{--tone:#6fd6aa}.dck .vd-bar{display:flex;align-items:center;gap:14px;width:100%;max-width:1180px;margin:0 auto;padding:26px 40px 8px}.dck .vd-title{font:700 26px/1.1 var(--font-display);margin:0}.dck .vd-sub{font:700 13.5px/1.4 var(--font-body);color:var(--slate);margin:3px 0 0}.dck .vd-main{max-width:1180px;margin:0 auto;padding:12px 40px 70px}.dck .vd-card{background:var(--surf);border:1.5px solid var(--line);border-radius:22px;box-shadow:var(--sh)}.dck .vd-lbl{font:900 11.5px/1 var(--font-body);letter-spacing:1.3px;color:var(--mist);text-transform:uppercase;margin:0}.dck .vd-lvl{display:inline-flex;align-items:center;font:900 10.5px/1 var(--font-body);color:#fff;padding:4px 8px;border-radius:999px;background:var(--teal);white-space:nowrap}.dck .vd-lvl.a{background:var(--green-deep)}.dck .vd-lvl.b{background:var(--gold-deep)}.dck .vd-lvl.c{background:var(--teal)}.dck .vd-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 22px;border:0;border-radius:14px;font:800 14.5px/1 var(--font-body);cursor:pointer;transition:transform .15s,filter .15s;white-space:nowrap;text-decoration:none}.dck .vd-btn:hover:not(:disabled){transform:translateY(-2px)}.dck .vd-btn:disabled{opacity:.5;cursor:not-allowed}.dck .vd-btn.pri{background:linear-gradient(145deg,var(--aqua),var(--teal));color:#fff;box-shadow:0 10px 22px rgba(31,111,139,.3)}.dck .vd-btn.sec{background:var(--surf);color:var(--ink);border:1.5px solid var(--line)}.dck .vd-btn.sm{padding:10px 15px;font-size:13px;border-radius:11px}.dck .vd-in{width:100%;padding:12px 14px;border-radius:12px;border:2px solid var(--field);background:var(--surf);font:700 14.5px/1.3 var(--font-body);color:var(--ink);outline:0}.dck .vd-in:focus{border-color:var(--teal)}.dck .vd-in::placeholder{color:var(--mist)}.dck .vd-row{display:flex;align-items:center;gap:10px}.dck .vd-grow{flex:1 1;min-width:0}.dck .vd-say{width:36px;height:36px;flex:0 0 auto;border-radius:11px;border:0;background:var(--track);display:grid;place-items:center;cursor:pointer;color:var(--teal);font-size:17px}[data-theme=dark] .dck .vd-say{color:var(--aqua)}.dck .vd-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.dck .vd-tag{padding:8px 13px;border-radius:999px;background:var(--track);font:800 13px/1 var(--font-body);color:var(--ink)}.dck .vd-tag.syn{background:var(--green-soft);color:var(--green-deep)}.dck .vd-tag.ant{background:var(--danger-soft);color:var(--danger)}[data-theme=dark] .dck .vd-tag.syn{color:#5cc99a}[data-theme=dark] .dck .vd-tag.ant{color:var(--coral)}.dck .vd-stage{display:flex;flex-direction:column;align-items:center;gap:22px;max-width:760px;margin:0 auto}.dck .vd-steps{display:flex;gap:6px;width:100%}.dck .vd-steps i{flex:1 1;height:7px;border-radius:5px;background:var(--track)}.dck .vd-steps i.done{background:linear-gradient(145deg,var(--aqua),var(--teal))}.dck .vd-steps i.miss{background:var(--coral)}.dck .vd-steps i.cur{background:var(--gold)}.dck .vd-kbd{display:inline-grid;place-items:center;min-width:24px;height:22px;padding:0 6px;border-radius:6px;background:rgba(13,47,63,.1);font:800 11px/1 var(--font-body);margin-left:4px}.dck .vd-btn.pri .vd-kbd{background:rgba(255,255,255,.25)}.dck .vd-score{width:190px;height:190px;border-radius:50%;background:conic-gradient(var(--green) var(--pct),var(--track) 0);display:grid;place-items:center}.dck .vd-score span{width:156px;height:156px;border-radius:50%;background:var(--surf);display:grid;place-items:center;text-align:center;font:700 46px/1 var(--font-display)}.dck .sk{position:relative;overflow:hidden;display:block;background:var(--sk-base);border-radius:8px}.dck .sk:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,var(--sk-gloss),transparent);animation:dck-sk 1.3s ease-in-out infinite}@keyframes dck-sk{to{transform:translateX(100%)}}@media (prefers-reduced-motion:reduce){.dck .sk:after{animation:none}}.dck .sk-run{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);grid-gap:26px;gap:26px;align-items:start}.dck .sk-stim{position:-webkit-sticky;position:sticky;top:16px}.dck .sk-player{padding:22px 24px;border-radius:24px;color:#fff;background:linear-gradient(160deg,#1f6f8b,#0d2f3f);box-shadow:0 18px 36px rgba(13,47,63,.22)}.dck .sk-pbtn{width:64px;height:64px;border-radius:50%;border:0;cursor:pointer;display:grid;place-items:center;background:#fff;box-shadow:0 10px 22px rgba(0,0,0,.3);transition:transform .15s;flex:0 0 auto}.dck .sk-pbtn:hover{transform:scale(1.06)}.dck .sk-pchip{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:12px;border:1.5px solid rgba(255,255,255,.25);background:rgba(255,255,255,.1);color:#fff;cursor:pointer;font:800 12.5px/1 var(--font-body)}.dck .sk-pchip.on{background:#ffc857;color:#0d2f3f;border-color:#ffc857}@media (max-width:900px){.dck .sk-run{grid-template-columns:1fr}.dck .sk-stim{position:static}}.dck .sp-wave{display:flex;align-items:center;gap:2px}.dck .sp-wave i{flex:1 1;min-width:2px;border-radius:2px;transition:background .12s}.dck .sp-video{position:relative;aspect-ratio:16/9;border-radius:22px;overflow:hidden;background:linear-gradient(160deg,#1f6f8b,#0d2f3f);display:grid;place-items:center;box-shadow:0 18px 36px rgba(13,47,63,.22)}.dck .sp-video-cap{position:absolute;left:18px;right:18px;bottom:16px;display:flex;align-items:center;gap:10px;color:#fff;font:700 13px/1.3 var(--font-body)}.dck .sp-video-bar{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(255,255,255,.2)}.dck .sp-video-bar i{display:block;height:100%;background:var(--gold)}.dck .sp-screen-play{position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);width:66px;height:66px;border-radius:50%;background:rgba(255,255,255,.95);display:grid;place-items:center;box-shadow:0 10px 26px rgba(0,0,0,.35)}.dck .st-h{font:700 22px/1.2 var(--font-display);margin:0}.dck .st-p{font:700 14px/1.5 var(--font-body);color:var(--slate);margin:0;max-width:330px}.dck .ls-full{width:100%}.dck .ls-col{display:flex;flex-direction:column;gap:12px}.dck .ls-ellipsis{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dck .ls-player-top{gap:16px}.dck .ls-player .sk-pbtn:disabled{cursor:default;transform:none}.dck .ls-player-state{display:flex;align-items:baseline;gap:10px;font:800 13px/1.2 var(--font-body);opacity:.9}.dck .ls-player-state>span:first-child{flex:1 1;min-width:0}.dck .ls-wave{height:40px;margin-top:10px}.dck .ls-wave i{background:rgba(255,255,255,.25)}.dck .ls-wave i.on{background:var(--ls-gold)}.dck .ls-player-chips{gap:8px;margin-top:14px;flex-wrap:wrap}.dck .ls-qcard{width:100%;padding:22px 24px}.dck .ls-qcard .ls-answer{display:block;margin-top:12px;min-height:90px;resize:vertical;font:500 20px/1.5 var(--font-display)}.dck .ls-qcard .ls-answer:-moz-read-only{cursor:default}.dck .ls-qcard .ls-answer:read-only{cursor:default}.dck .ls-qcard .ls-answer.is-right{border-color:var(--green)}.dck .ls-qcard .ls-answer.is-wrong{border-color:var(--danger)}.dck .ls-checked{margin-top:16px}.dck .ls-dtag{font:600 16px/1 var(--font-display)}.dck .ls-verdict{gap:10px;margin-top:14px;font:700 15px/1.4 var(--font-body);color:var(--slate);align-items:flex-start}.dck .ls-verdict.is-right{color:var(--green-deep)}[data-theme=dark] .dck .ls-verdict.is-right{color:#5cc99a}.dck .ls-verdict b{color:var(--ink);font-family:var(--font-display)}.dck .ls-result{width:100%;padding:34px;display:flex;flex-direction:column;align-items:center;text-align:center}.dck .ls-result-h{font:600 30px/1.15 var(--font-display);margin-top:18px}.dck .ls-result-b{font:700 15px/1.4 var(--font-body);color:var(--slate);margin:6px 0 0}.dck .ls-result-acts{gap:10px;margin-top:22px;flex-wrap:wrap;justify-content:center}.dck .ls-missed{display:flex;flex-direction:column;gap:8px;margin-top:12px}.dck .ls-missed-t{font:500 17px/1.4 var(--font-display);text-align:left}.dck .ls-revisit{padding:14px 16px;box-shadow:none}.dck .ls-revisit .vd-tags{margin-top:8px}.dck .ls-result-vid{width:100%;gap:12px;text-align:left;padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line)}.dck .ls-mini-thumb{width:104px;flex:0 0 auto;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:var(--track)}.dck .ls-mini-thumb img{display:block;width:100%;height:100%;object-fit:cover}.dck .ls-vid-t{font:600 16px/1.25 var(--font-display);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}.dck .ls-vid-u{font:800 12px/1 var(--font-body);color:var(--mist)}.dck .ls-ytv iframe,.dck .ls-ytv-player{position:absolute;inset:0;width:100%;height:100%;border:0}.dck .ls-ytv:after{content:"";position:absolute;left:0;right:0;bottom:0;height:84px;z-index:1;pointer-events:none;background:linear-gradient(transparent,rgba(13,47,63,.6))}.dck .ls-ytv-mask{position:absolute;inset:0;z-index:1}.dck .ls-ytv .sp-video-cap{z-index:2;pointer-events:none}.dck .ls-ytv .sp-video-bar{z-index:2}.dck .ls-ytv .sp-screen-play{z-index:2;border:0;cursor:pointer}.dck .ls-ytv-blur{position:absolute;top:12px;right:12px;z-index:3;display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:12px;border:1.5px solid rgba(255,255,255,.3);background:rgba(13,47,63,.55);color:#fff;font:800 12.5px/1 var(--font-body);cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.dck .ls-ytv-blur[aria-pressed=true]{background:var(--ls-gold);color:#0d2f3f;border-color:var(--ls-gold)}.dck .ls-yt-ctl{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}@media (max-width:760px){.dck .ls-qcard{padding:18px}.dck .ls-qcard .ls-answer{font-size:18px}.dck .ls-result{padding:26px 18px}.dck .ls-result-h{font-size:25px}}