.shk{--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);--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] .shk{--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)}.shk *,.shk :after,.shk :before{box-sizing:border-box}:where(.shk) :where(p,h1,h2,h3,ul){margin:0}:where(.shk) :where(button){font:inherit;color:inherit}.shk .em{display:block;flex:0 0 auto}.shk .tn-teal,.shk.tn-teal{--tone:#155f42;--tone-g:linear-gradient(145deg,#2e9a6c,#155f42);--tint:rgba(58,166,122,0.16)}[data-theme=dark] .shk .tn-teal,[data-theme=dark] .shk.tn-teal{--tone:#6fd6aa}.shk .vd-bar{gap:14px;width:100%;max-width:1180px;margin:0 auto;padding:26px 40px 8px}.shk .vd-bar,.shk .vd-bar-r{display:flex;align-items:center}.shk .vd-bar-r{margin-left:auto;gap:10px}.shk .vd-title{font:700 26px/1.1 var(--font-display);margin:0}.shk .vd-sub{font:700 13.5px/1.4 var(--font-body);color:var(--slate);margin:3px 0 0}.shk .vd-main{max-width:1180px;margin:0 auto;padding:12px 40px 70px}.shk .vd-card{background:var(--surf);border:1.5px solid var(--line);border-radius:22px;box-shadow:var(--sh)}.shk .vd-lbl{font:900 11.5px/1 var(--font-body);letter-spacing:1.3px;color:var(--mist);text-transform:uppercase;margin:0}.shk .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}.shk .vd-btn:hover:not(:disabled){transform:translateY(-2px)}.shk .vd-btn:disabled{opacity:.5;cursor:not-allowed}.shk .vd-btn.pri{background:linear-gradient(145deg,var(--aqua),var(--teal));color:#fff;box-shadow:0 10px 22px rgba(31,111,139,.3)}.shk .vd-chip{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;border:1.5px solid var(--line);background:var(--surf);font:800 13px/1 var(--font-body);color:var(--slate);cursor:pointer;transition:transform .12s}.shk .vd-chip:hover{transform:translateY(-2px)}.shk .vd-chip.on{background:var(--teal);color:#fff;border-color:transparent}.shk .vd-row{display:flex;align-items:center;gap:10px}.shk .vd-grow{flex:1 1;min-width:0}.shk .vd-stage{display:flex;flex-direction:column;align-items:center;gap:22px;max-width:760px;margin:0 auto}.shk .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}.shk .vd-btn.pri .vd-kbd{background:rgba(255,255,255,.25)}[data-theme=dark] .shk .vd-kbd{background:rgba(255,255,255,.12)}.shk .vd-ring{width:52px;height:52px;flex:0 0 auto;border-radius:50%;background:conic-gradient(var(--gold-deep) var(--pct),var(--track) 0);display:grid;place-items:center}.shk .vd-ring span{width:40px;height:40px;border-radius:50%;background:var(--desk);display:grid;place-items:center;font:700 15px/1 var(--font-display)}.shk .sk{position:relative;overflow:hidden;display:block;background:var(--sk-base);border-radius:8px}.shk .sk:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,var(--sk-gloss),transparent);animation:shk-sk 1.3s ease-in-out infinite}@keyframes shk-sk{to{transform:translateX(100%)}}.shk .lp-pt.is-zoom{animation:shk-zoom .52s cubic-bezier(.34,1.3,.5,1) backwards}@keyframes shk-zoom{0%{opacity:0;transform:scale(.92)}}@media (prefers-reduced-motion:reduce){.shk .lp-pt.is-zoom,.shk .sk:after{animation:none}}.shk .sp-prac{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);grid-gap:26px;gap:26px;align-items:start}.shk .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)}.shk .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)}.shk .sp-video-bar{position:absolute;left:0;right:0;bottom:0;height:4px;background:rgba(255,255,255,.2)}.shk .sp-video-bar i{display:block;height:100%;background:var(--gold)}.shk .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)}.shk .sp-lines{display:flex;flex-direction:column;gap:4px;margin-top:16px}.shk .sp-line{display:flex;align-items:flex-start;gap:12px;padding:11px 14px;border-radius:14px;border:0;background:none;text-align:left;cursor:pointer;font:600 14.5px/1.45 var(--font-body);color:var(--slate)}.shk .sp-line:hover{background:var(--track)}.shk .sp-line.cur{background:var(--surf);color:var(--ink);box-shadow:0 6px 14px rgba(13,47,63,.08);border:1.5px solid var(--line)}.shk .sp-line-n{width:24px;height:24px;flex:0 0 auto;border-radius:8px;background:var(--track);display:grid;place-items:center;font:800 11px/1 var(--font-body);color:var(--slate)}.shk .sp-line.done .sp-line-n{background:var(--green-soft);color:var(--green-deep)}.shk .sp-echo{padding:26px 28px;display:flex;flex-direction:column;gap:18px}.shk .sp-sent{font:600 27px/1.35 var(--font-display);text-wrap:pretty}.shk .sp-sent span{transition:color .15s}.shk .sp-sent span.lit{color:var(--teal)}[data-theme=dark] .shk .sp-sent span.lit{color:var(--aqua)}.shk .sp-ctrl{display:flex;align-items:center;justify-content:center;gap:16px}.shk .sp-round{width:56px;height:56px;border-radius:50%;border:1.5px solid var(--line);background:var(--surf);display:grid;place-items:center;cursor:pointer;transition:transform .15s}.shk .sp-round:hover:not(:disabled){transform:scale(1.06)}.shk .sp-round:disabled{opacity:.4;cursor:default}.shk .sp-hint{text-align:center;font:700 13.5px/1.4 var(--font-body);color:var(--slate)}.shk .sp-grade{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:18px;background:var(--desk)}.shk .sp-keys{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;font:700 12px/1 var(--font-body);color:var(--mist)}.shk .sp-dots{display:flex;gap:6px}.shk .sp-dots i{width:22px;height:7px;border-radius:5px;background:var(--track)}.shk .sp-dots i.done{background:var(--green)}.shk .sp-dots i.cur{background:var(--gold)}@media (max-width:900px){.shk .sp-prac{grid-template-columns:1fr}}.shk .sh-echo-lbl{color:var(--teal)}[data-theme=dark] .shk .sh-echo-lbl{color:var(--aqua)}.shk .sh-echo-n{font:800 12.5px/1 var(--font-body);color:var(--mist);white-space:nowrap}.shk .sh-turn-t{font:700 19px/1.2 var(--font-display)}.shk .sh-turn-b{font:700 13px/1.45 var(--font-body);color:var(--slate);margin-top:5px}