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.rd-btn{margin-top:auto}.rd-g-science{--rd-g1:#dff0ff;--rd-g2:#eef8ff}.rd-g-adventure{--rd-g1:#ffe8d6;--rd-g2:#fff5ec}.rd-g-mystery{--rd-g1:#e6e2f7;--rd-g2:#f2f0fb}.rd-g-history{--rd-g1:#fdf0d5;--rd-g2:#fff8e8}.rd-g-technology{--rd-g1:#e2f5ff;--rd-g2:#f0fbff}.rd-g-nature{--rd-g1:#ddf6e4;--rd-g2:#eefbf1}.rd-g-people{--rd-g1:#ffe4ef;--rd-g2:#fff2f7}.rd-g-culture{--rd-g1:#e3ecff;--rd-g2:#f1f5ff}.rd-toolbar{z-index:20;background:linear-gradient(#fff 70%,#fff0);justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;padding:8px 0;display:flex;position:sticky;top:0}.rd-tabs{background:var(--rd-soft);border-radius:999px;gap:6px;padding:4px;display:flex}.rd-tabs button{color:var(--rd-ink-2);font-family:inherit;font-size:calc(14px * var(--rd-scale));cursor:pointer;background:0 0;border:0;border-radius:999px;padding:8px 14px;font-weight:700}.rd-tabs button[aria-selected=true]{color:var(--rd-purple-dark);background:#fff;box-shadow:0 2px 8px 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var(--rd-scale));color:var(--rd-ink-2);flex-wrap:wrap;justify-content:center;gap:12px;margin-top:8px;font-weight:700;display:flex}.rd-task{background:var(--rd-gold-bg);color:var(--rd-gold-ink);font-size:calc(15px * var(--rd-scale));border-radius:16px;margin-bottom:14px;padding:14px 16px}.rd-task b{margin-bottom:2px;display:block}.rd-panel{border:1.5px solid var(--rd-line);background:#fff;border-radius:20px;margin-bottom:14px;padding:18px}.rd-panel .rd-label{margin-top:0}.rd-words{gap:10px;margin:0;padding:0;list-style:none;display:grid}.rd-word{background:var(--rd-field);border-radius:14px;align-items:flex-start;gap:10px;padding:12px 14px;display:flex}.rd-word__main{flex:1;min-width:0}.rd-word__top{flex-wrap:wrap;align-items:baseline;gap:8px;display:flex}.rd-word__en{font-size:calc(16px * var(--rd-scale));font-weight:800}.rd-word__tr{font-size:calc(13px * var(--rd-scale));color:var(--rd-ink-3)}.rd-word__row{font-size:calc(14px * 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12px;font-weight:700;display:inline-flex}.rd-save.is-saved{background:var(--rd-green-bg);color:var(--rd-green);cursor:default}.rd-save:disabled{opacity:1}.rd-listen{flex-wrap:wrap;gap:10px;display:flex}.rd-hint{font-size:calc(13px * var(--rd-scale));color:var(--rd-ink-3);margin:12px 0 16px}.rd-article{font-size:var(--rd-fs);line-height:var(--rd-lh);max-width:var(--rd-measure);letter-spacing:var(--rd-track);word-spacing:var(--rd-wspace)}.rd-article p{margin:0 0 1em}.rd-s{border-radius:6px;transition:background .15s}.rd-s.is-speaking{background:var(--rd-gold-bg);box-shadow:0 0 0 4px var(--rd-gold-bg)}.rd-w{cursor:pointer;border-radius:4px}.rd-w:hover{background:var(--rd-soft)}.rd-w.is-active{background:var(--rd-purple);color:#fff}.rd--dys .rd-article em,.rd--dys .rd-article i,.rd--dys .rd-word__ex{font-style:normal;font-weight:600}.rd-articlewrap{position:relative}.rd-pop{z-index:30;border:1.5px solid 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.rd-opt{text-align:center}.rd-opt[aria-checked=true]{border-color:var(--rd-purple);background:var(--rd-soft)}.rd-opt.is-correct{border-color:var(--rd-green-line);background:var(--rd-green-bg);color:var(--rd-green)}.rd-opt.is-wrong{border-color:var(--rd-red-line);background:var(--rd-red-bg);color:var(--rd-red)}.rd-fb{font-size:calc(14px * var(--rd-scale));margin-top:8px;line-height:1.45}.rd-fb.is-ok{color:var(--rd-green)}.rd-fb.is-bad{color:var(--rd-red)}.rd-fb.is-note{color:var(--rd-ink-2)}.rd-match{gap:8px;display:grid}.rd-match__row{grid-template-columns:1fr 1fr;gap:8px;display:grid}.rd-mt{border:1.5px solid var(--rd-line);font-family:inherit;font-size:calc(15px * var(--rd-scale));cursor:pointer;background:#fff;border-radius:14px;min-height:48px;padding:12px 14px;font-weight:600;position:relative}.rd-mt--emoji{font-size:calc(26px * var(--rd-scale))}.rd-mt.is-sel{border-color:var(--rd-purple);background:var(--rd-soft)}.rd-mt.is-paired{border-color:var(--rd-purple)}.rd-mt.is-correct{border-color:var(--rd-green-line);background:var(--rd-green-bg)}.rd-mt.is-wrong{border-color:var(--rd-red-line);background:var(--rd-red-bg)}.rd-mt__tag{background:var(--rd-purple);color:#fff;min-width:1.9em;height:1.9em;font-size:calc(11px * var(--rd-scale));border-radius:999px;place-items:center;padding:0 5px;font-weight:800;display:grid;position:absolute;top:-8px;right:-6px}.rd-gaptext{font-size:calc(16px * var(--rd-scale));margin:0 0 14px;line-height:2.1}.rd-gap{border:0;border-bottom:2px solid var(--rd-purple);background:var(--rd-field);font-family:inherit;font-size:calc(15px * var(--rd-scale));color:var(--rd-purple-dark);cursor:pointer;border-radius:8px 8px 0 0;min-width:72px;padding:3px 10px;font-weight:700}.rd-gap.is-active{background:var(--rd-soft);box-shadow:0 0 0 3px var(--rd-soft)}.rd-gap.is-correct{border-bottom-color:var(--rd-green-line);background:var(--rd-green-bg);color:var(--rd-green)}.rd-gap.is-wrong{border-bottom-color:var(--rd-red-line);background:var(--rd-red-bg);color:var(--rd-red)}.rd-gap s{opacity:.6;font-weight:500}.rd-bank{background:var(--rd-field);border-radius:14px;flex-wrap:wrap;align-items:center;gap:8px;padding:12px;display:flex}.rd-bank__label{font-size:calc(12px * var(--rd-scale));color:var(--rd-ink-3);text-transform:uppercase;font-weight:800}.rd-chipw{border:1.5px solid var(--rd-line);font-family:inherit;font-size:calc(15px * var(--rd-scale));cursor:pointer;background:#fff;border-radius:999px;padding:8px 14px;font-weight:700}.rd-chipw.is-used{opacity:.35}.rd-ord{counter-reset:rd-ord;gap:8px;margin:0;padding:0;list-style:none;display:grid}.rd-ord__item{border:1.5px solid var(--rd-line);background:#fff;border-radius:14px;align-items:center;gap:10px;padding:10px 12px;display:flex}.rd-ord__item.is-correct{border-color:var(--rd-green-line);background:var(--rd-green-bg)}.rd-ord__item.is-wrong{border-color:var(--rd-red-line);background:var(--rd-red-bg)}.rd-ord__num{background:var(--rd-soft);width:2em;height:2em;color:var(--rd-purple-dark);font-size:calc(12px * var(--rd-scale));border-radius:999px;flex:none;place-items:center;font-weight:800;display:grid}.rd-ord__handle{color:var(--rd-ink-3);cursor:grab;touch-action:none;flex:none}.rd-ord__txt{font-size:calc(15px * var(--rd-scale));flex:1;line-height:1.4}.rd-ord__mv{flex-direction:column;flex:none;gap:2px;display:flex}.rd-ord__mv button{color:var(--rd-ink-3);font-size:calc(11px * var(--rd-scale));cursor:pointer;background:0 0;border:0;padding:3px 6px;line-height:1}.rd-reflect{border:1.5px solid var(--rd-line);width:100%;font-family:inherit;font-size:calc(15px * var(--rd-scale));resize:vertical;border-radius:14px;padding:12px 14px;line-height:1.5}.rd-reflect:focus{border-color:var(--rd-purple);outline:none}.rd-finish{background:var(--rd-soft);text-align:center;border-radius:20px;padding:18px}.rd-finish p{font-size:calc(14px * var(--rd-scale));color:var(--rd-ink-2);margin:0 0 12px}.rd-stats{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:14px 0;display:grid}.rd-stat{border:1.5px solid var(--rd-line);text-align:center;background:#fff;border-radius:18px;padding:16px}.rd-stat b{font-size:calc(28px * var(--rd-scale));color:var(--rd-purple-dark);font-weight:800;display:block}.rd-stat span{font-size:calc(12px * var(--rd-scale));color:var(--rd-ink-3)}.rd-review{gap:8px;margin:0;padding:0;list-style:none;display:grid}.rd-review li{background:var(--rd-field);font-size:calc(14px * var(--rd-scale));border-radius:14px;align-items:center;gap:10px;padding:10px 14px;display:flex}.rd-review__score{color:var(--rd-ink-3);margin-left:auto;font-weight:700}.rd-allgood{color:var(--rd-green);margin:0;font-weight:700}.rd-actions{flex-wrap:wrap;gap:10px;margin-top:16px;display:flex}.rd-backdrop{z-index:70;background:#15131a59;position:fixed;inset:0}.rd-drawer{z-index:71;background:#fff;flex-direction:column;gap:16px;width:min(340px,92vw);padding:20px;display:flex;position:fixed;top:0;bottom:0;right:0;overflow-y:auto;box-shadow:-8px 0 40px #15131a2e}.rd-drawer__head{justify-content:space-between;align-items:center;display:flex}.rd-drawer__head h2{font-size:calc(18px * var(--rd-scale));margin:0;font-weight:800}.rd-set{flex-direction:column;gap:8px;display:flex}.rd-set__lbl{font-size:calc(13px * var(--rd-scale));color:var(--rd-ink-2);font-weight:700}.rd-seg{background:var(--rd-soft);border-radius:12px;gap:6px;padding:4px;display:flex}.rd-seg button{color:var(--rd-ink-2);font-family:inherit;font-size:calc(14px * var(--rd-scale));cursor:pointer;background:0 0;border:0;border-radius:9px;flex:1;padding:8px 6px;font-weight:700}.rd-seg button[aria-pressed=true]{color:var(--rd-purple-dark);background:#fff;box-shadow:0 2px 8px #874bf81f}.rd-switch{border:1.5px solid var(--rd-line);font-family:inherit;font-size:calc(14px * var(--rd-scale));cursor:pointer;background:#fff;border-radius:14px;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;font-weight:700;display:flex}.rd-switch__knob{background:var(--rd-line);border-radius:999px;flex:none;width:42px;height:24px;transition:background .15s;position:relative}.rd-switch__knob:after{content:"";background:#fff;border-radius:999px;width:18px;height:18px;transition:transform .15s;position:absolute;top:3px;left:3px}.rd-switch[aria-checked=true] .rd-switch__knob{background:var(--rd-purple)}.rd-switch[aria-checked=true] .rd-switch__knob:after{transform:translate(18px)}.rd-preview{background:var(--rd-field);font-size:var(--rd-fs);line-height:var(--rd-lh);letter-spacing:var(--rd-track);word-spacing:var(--rd-wspace);border-radius:14px;padding:14px}@media (max-width:1023px){.rd{padding:10px 16px 40px}.rd-grid2{grid-template-columns:1fr}.rd-grid2[data-tab=text] .rd-pane--ex,.rd-grid2[data-tab=ex] .rd-pane--text{display:none}}@media (min-width:1024px){.rd-tabs{display:none}.rd-toolbar{justify-content:flex-end}.rd-grid2{--rd-tbh:calc(39px * var(--rd-scale) + 29px);align-items:start}.rd-pane--text{top:var(--rd-tbh);max-height:calc(100vh - var(--rd-tbh) - 16px);overscroll-behavior:contain;padding-right:6px;position:sticky;overflow-y:auto}.rd-ex{scroll-margin-top:calc(var(--rd-tbh,68px) + 12px)}}@media (max-width:560px){.rd-hero h1{font-size:calc(22px * var(--rd-scale))}.rd-match__row{grid-template-columns:1fr}.rd-opts--row{grid-auto-flow:row}.rd-actions .rd-btn{width:100%}}
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var(--sit-line);background:#fff;border-radius:18px;margin-bottom:22px;padding:16px 18px}.sit-prog__top{color:var(--sit-ink-2);justify-content:space-between;margin-bottom:10px;font-size:14px;display:flex}.sit-prog__count b{color:var(--sit-purple-dark)}.sit-prog__bar{background:var(--sit-soft);border-radius:999px;height:8px;overflow:hidden}.sit-prog__bar i{background:linear-gradient(90deg, var(--sit-purple), var(--sit-cyan));border-radius:999px;height:100%;transition:width .3s;display:block}.sit-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:16px;display:grid}.sit-card{border:1px solid var(--sit-line);text-align:left;font:inherit;color:inherit;cursor:pointer;background:#fff;border-radius:18px;flex-direction:column;gap:8px;padding:0 0 12px;transition:transform .15s,box-shadow .15s;display:flex;overflow:hidden}.sit-card:hover{transform:translateY(-2px);box-shadow:0 12px 28px -18px 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var(--sit-line);font:inherit;color:var(--sit-ink-3);cursor:pointer;background:#fff;border-radius:999px;padding:2px 10px;font-size:11px;font-weight:800}.sit-ml__toggle:hover{border-color:var(--sit-purple);color:var(--sit-purple-dark)}.sit-ml__toggle.is-on{background:var(--sit-purple);border-color:var(--sit-purple);color:#fff}.sit-ml__toggle:disabled{opacity:.5;cursor:default}.sit-ml__tr{color:var(--sit-ink-2);margin-top:8px;padding-left:2px;font-size:15px}.sit-ml__lab{letter-spacing:.6px;color:var(--sit-ink-3);font-size:10px;font-weight:800;display:block}.sit-task{border:2px solid var(--sit-purple);background:#fff;border-radius:18px;margin-bottom:22px;padding:16px 18px}.sit-task__label{letter-spacing:.6px;color:var(--sit-purple-dark);margin-bottom:8px;font-size:11px;font-weight:800}.sit-rec{border:1px solid 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.wd{--wd-purple:#874bf8;--wd-purple-dark:#5718c0;--wd-cyan:#0aafff;--wd-green:#03832c;--wd-green-bg:#e6fbec;--wd-green-line:#00d441;--wd-red:#c43d00;--wd-red-bg:#fff0e9;--wd-line:#edeaf5;--wd-soft:#f4f1fc;--wd-ink-2:#4a4458;--wd-ink-3:#8a849a;--wd-tint:#874bf8;--wd-tint2:#0aafff;max-width:1240px;margin:0 auto;padding:10px 32px 48px}.wd-i{fill:none;stroke:currentColor;stroke-width:2.2px;stroke-linecap:round;stroke-linejoin:round;flex:none;width:20px;height:20px}.wd-top{align-items:center;gap:16px;margin-bottom:20px;display:flex}@media (min-width:761px){.wd-top{padding-right:170px}}.wd-back{background:var(--wd-purple);color:#fff;cursor:pointer;border:0;border-radius:999px;align-items:center;gap:4px;padding:9px 16px 9px 12px;font-family:inherit;font-size:14px;font-weight:700;display:inline-flex}.wd-back:hover{filter:brightness(1.05)}.wd-crumb{flex-direction:column;flex:1;min-width:0;line-height:1.2;display:flex}.wd-crumb b{color:var(--wd-purple);font-size:15px;font-weight:800}.wd-crumb 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0}.wd-btn--block{width:100%}.wd-hero{margin-bottom:18px}.wd-hero h1{color:var(--ink,#171326);margin:0 0 6px;font-size:26px;font-weight:800}.wd-hero p{color:var(--wd-ink-3);margin:0;font-size:14px}.wd-label{color:var(--wd-ink-3);text-transform:uppercase;letter-spacing:.04em;margin:18px 0 8px;font-size:13px;font-weight:800}.wd-chips{flex-wrap:wrap;gap:8px;display:flex}.wd-chip{border:1.5px solid var(--wd-line);color:var(--wd-ink-2);cursor:pointer;background:#fff;border-radius:999px;align-items:center;gap:8px;padding:8px 14px;font-family:inherit;font-size:14px;font-weight:700;display:inline-flex}.wd-chip em{color:var(--wd-ink-3);font-size:12px;font-style:normal;font-weight:800}.wd-chip[aria-pressed=true]{background:var(--wd-purple);border-color:var(--wd-purple);color:#fff}.wd-chip[aria-pressed=true] em{color:#ffffffbf}.wd-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:20px;display:grid}.wd-card{border:1.5px solid 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var(--wd-line);cursor:pointer;color:var(--wd-ink-2);background:#fff;border-radius:18px;align-items:center;gap:10px;padding:8px 14px 8px 8px;font-family:inherit;display:inline-flex}.wd-word:hover{border-color:var(--wd-purple)}.wd-word img{object-fit:contain;flex:none;width:40px;height:40px}.wd-word__text{flex-direction:column;align-items:flex-start;line-height:1.2;display:flex}.wd-word__text b{color:var(--ink,#171326);font-size:15px;font-weight:800}.wd-word__text em{color:var(--wd-ink-3);font-size:12px;font-style:normal}.wd-task{flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:14px;display:flex;position:relative}.wd-task__row{flex-wrap:wrap;flex:1;align-items:center;gap:12px;min-width:0;display:flex}.wd-task__text{font-size:17px;font-weight:800}.wd-task__round{color:var(--wd-ink-3);font-size:12px;font-weight:700}.wd-dots{gap:5px;display:inline-flex}.wd-dots i{background:var(--wd-soft);border:1.5px solid var(--wd-line);border-radius:50%;width:9px;height:9px}.wd-dots 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var(--wd-line);border-radius:24px;overflow:hidden}.wd-stage{width:100%;aspect-ratio:var(--wd-ar,1.7778);background-position:50%;background-size:cover;position:relative;overflow:hidden}.wd-stage--water:after{content:"";pointer-events:none;background:linear-gradient(#0aafff1f,#0aafff05);position:absolute;inset:0}.wd-sprite{aspect-ratio:1;cursor:pointer;z-index:1;background:0 0;border:0;padding:0;transition:filter .15s;position:absolute;transform:translate(-50%,-100%)}.wd-sprite img{object-fit:contain;-webkit-user-select:none;user-select:none;width:100%;height:100%;display:block}.wd-sprite:hover{filter:drop-shadow(0 0 10px #874bf88c)}.wd-sprite--found{cursor:default;filter:grayscale(.35)opacity(.55)}.wd-sprite--found:hover{filter:grayscale(.35)opacity(.55)}.wd-sprite--no{animation:.42s wd-no}@keyframes wd-no{0%,to{transform:translate(-50%,-100%)}25%{transform:translate(calc(-50% - 7px),-100%)}75%{transform:translate(calc(7px - 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