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p{color:#686868;margin:0;font-size:.86rem;font-weight:500;line-height:1.58}.pro-order-wechat strong{color:#171717;font-weight:740}.pro-order-panel .pro-transfer-qr{width:148px;height:148px;box-shadow:none;background-color:#fff;border:1px solid #dedede;border-radius:8px}.pro-order-primary,.pro-order-secondary{box-sizing:border-box;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:46px;padding:0 16px;font-size:.88rem;font-weight:720;line-height:1.25;text-decoration:none;transition:background-color .16s,border-color .16s,color .16s;display:inline-flex}.pro-order-primary{border:1px solid var(--pro-accent);background:var(--pro-accent);color:#fff;cursor:pointer}.pro-order-primary:hover,.pro-order-primary:focus-visible{border-color:var(--pro-accent-hover);background:var(--pro-accent-hover);color:#fff;outline:none}.pro-order-primary:focus-visible,.pro-order-secondary:focus-visible{outline:2px solid 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.quick-learn-book-word-sheet{--dictionary-sheet-background:#fff;--dictionary-sheet-surface:#f5f5f7;--dictionary-sheet-surface-hover:#ebebed;--dictionary-sheet-text:#1d1d1f;--dictionary-sheet-secondary:#6e6e73;--dictionary-sheet-tertiary:#8e8e93;--dictionary-sheet-line:#e5e5e7;background:var(--dictionary-sheet-background);width:min(680px,100vw - 32px);height:min(460px,100dvh - 32px);max-height:none;color:var(--dictionary-sheet-text);border:1px solid #00000014;flex-direction:column;padding:0;display:flex;overflow:hidden;box-shadow:0 18px 50px #0000002e}.chat-page-shell[data-mode] .quick-learn-book-word-sheet{background:var(--dictionary-sheet-background);border:1px solid #00000014;width:min(680px,100% - 40px);height:min(460px,100dvh - 32px);max-height:none;overflow:hidden;box-shadow:0 18px 50px #0000002e}.quick-learn-book-word-sheet-head{border-bottom:1px solid var(--dictionary-sheet-line);flex:0 0 72px;height:72px;min-height:72px;padding:15px 20px 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select{background:var(--dictionary-sheet-surface);width:auto;max-width:min(70%,240px);min-height:34px;color:var(--dictionary-sheet-text);font:inherit;cursor:pointer;border:0;border-radius:9px;padding:6px 10px;font-size:.78rem;font-weight:650;line-height:1.2}.quick-learn-dictionary-source-picker select:hover{background:var(--dictionary-sheet-surface-hover)}.quick-learn-dictionary-source-picker select:focus-visible{outline:2px solid var(--dictionary-sheet-text);outline-offset:2px}.quick-learn-dictionary-entry{gap:12px}.quick-learn-dictionary-headword{gap:8px;padding-bottom:2px}.quick-learn-dictionary-headword strong{color:var(--dictionary-sheet-text);font-size:1rem;font-weight:700}.quick-learn-dictionary-headword span,.quick-learn-dictionary-sense-head span{color:var(--dictionary-sheet-secondary);font-size:.75rem;font-weight:620}.quick-learn-dictionary-entry ol{gap:0;padding-left:1.35rem}.quick-learn-dictionary-entry li{padding:0 0 16px 3px}.quick-learn-dictionary-entry li+li{border-top:1px solid var(--dictionary-sheet-line);padding-top:16px}.quick-learn-dictionary-entry li>*+*{margin-top:5px}.quick-learn-dictionary-translation{font-weight:650;color:var(--dictionary-sheet-text)!important}.quick-learn-dictionary-example{color:var(--dictionary-sheet-secondary)!important;font-size:.82rem!important;line-height:1.52!important}.quick-learn-dictionary-note{color:var(--dictionary-sheet-tertiary)!important;margin-top:12px!important;font-size:.76rem!important}.quick-learn-vocabulary-synonym-list{gap:0}.quick-learn-vocabulary-synonym-row{border-bottom:1px solid var(--dictionary-sheet-line);background:0 0;border-radius:0;gap:6px;padding:14px 0}.quick-learn-vocabulary-synonym-row:first-child{padding-top:0}.quick-learn-vocabulary-synonym-row:last-child{border-bottom:0}.quick-learn-vocabulary-synonym-head strong{color:var(--dictionary-sheet-text)}.quick-learn-vocabulary-mini-tag,.quick-learn-vocabulary-synonym-row p{color:var(--dictionary-sheet-secondary)}:root[data-theme=dark] .quick-learn-book-word-sheet{--dictionary-sheet-background:#1c1c1e;--dictionary-sheet-surface:#2c2c2e;--dictionary-sheet-surface-hover:#3a3a3c;--dictionary-sheet-text:#f5f5f7;--dictionary-sheet-secondary:#aeaeb2;--dictionary-sheet-tertiary:#8e8e93;--dictionary-sheet-line:#ffffff1f;background:var(--dictionary-sheet-background);color:var(--dictionary-sheet-text);border-color:#ffffff1f;box-shadow:0 18px 50px #00000080}:root[data-theme=dark] .chat-page-shell[data-mode] .quick-learn-book-word-sheet{background:var(--dictionary-sheet-background);border-color:#ffffff1f}:root[data-theme=dark] .quick-learn-book-word-actions button{color:#e5e5ea}:root[data-theme=dark] .quick-learn-book-word-actions button:hover{color:#fff}:root[data-theme=dark] .quick-learn-book-word-actions button.is-active{color:#1c1c1e}@media (max-width:640px){.quick-learn-book-word-sheet,.chat-page-shell[data-mode] .quick-learn-book-word-sheet{width:calc(100vw - 24px);height:min(62dvh,520px);max-height:none;bottom:calc(12px + env(safe-area-inset-bottom))}.quick-learn-book-word-sheet-head{flex-basis:68px;height:68px;min-height:68px;padding:13px 14px 11px}.quick-learn-book-word-sheet-head,.quick-learn-book-word-actions{align-items:center}.quick-learn-book-word-actions{gap:6px}.quick-learn-book-word-actions button{width:38px;height:38px}.quick-learn-word-reference-tabs{padding:0 12px}.quick-learn-word-reference-tabs button{padding:0 4px;font-size:.78rem}.quick-learn-word-reference-panel{padding:16px 14px calc(20px + env(safe-area-inset-bottom));scrollbar-gutter:auto}.quick-learn-dictionary-source-picker select{max-width:72%}}@media (prefers-reduced-motion:reduce){.quick-learn-book-word-actions button{transition:none}}
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button.is-selected{color:var(--panel-strong,#fff);background:var(--ink,#111)}.structure-hint-layout-options button:focus-visible{outline:2px solid var(--ink,#111);outline-offset:2px}.structure-hint-tree{min-width:min-content;padding:10px 2px 4px}.structure-hint-node{border:1px solid color-mix(in srgb, var(--ink,#111) 18%, transparent);background:color-mix(in srgb, var(--ink,#111) 2.5%, var(--panel-strong,#fff));border-radius:12px;flex-direction:column;gap:8px;min-width:max-content;padding:14px 12px 11px;display:inline-flex;position:relative}.structure-hint-node.is-clause{border-width:2px;width:max-content;max-width:100%;padding:18px 14px 14px;display:flex}.structure-hint-node.contains-blank{border-color:color-mix(in srgb, var(--ink,#111) 48%, transparent)}.structure-hint-node-label{color:var(--panel-strong,#fff);background:color-mix(in srgb, var(--ink,#111) 78%, transparent);white-space:nowrap;border-radius:5px;padding:2px 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0;font-weight:650}.structure-hint-loading,.structure-hint-empty,.structure-hint-error{box-sizing:border-box;width:100%;min-height:180px;color:var(--muted,#667085);text-align:center;align-content:center;place-items:center;gap:12px;padding:22px 24px 24px;display:grid}.structure-hint-loading svg,.structure-hint-empty svg,.structure-hint-error>svg{width:24px;height:24px}.structure-hint-loading svg{animation:.9s linear infinite thinking-spinner-rotate}.structure-hint-empty p,.structure-hint-error p{margin:0}.structure-hint-error button{border:1px solid color-mix(in srgb, var(--ink,#111) 18%, transparent);color:var(--ink,#111);background:var(--panel-strong,#fff);cursor:pointer;border-radius:9px;align-items:center;gap:7px;padding:8px 12px;display:inline-flex}.structure-hint-error button svg{width:15px;height:15px}@media (max-width:560px){.question-structure-hint-button{width:38px;height:38px}.structure-hint-scrim{align-items:end;padding:0}.structure-hint-dialog{border-radius:20px 20px 0 0;width:100%;max-height:90dvh}.structure-hint-dialog>header{padding:18px 18px 14px}.structure-hint-dialog-body{max-height:calc(90dvh - 84px)}.structure-hint-context-toolbar{align-items:stretch;gap:12px;padding:14px 18px 12px;display:grid}.structure-hint-layout-control{justify-content:space-between}.structure-hint-canvas-scroll{padding:16px 18px 28px}.structure-hint-node-children{gap:8px}}@media (prefers-reduced-motion:reduce){.structure-hint-loading svg{animation:none}}