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12px;display:flex}.word-example-phrase-text{min-width:0;color:var(--app-brand-dark,#087443);overflow-wrap:anywhere;font-size:15px;font-weight:800;line-height:1.45}.word-example-phrase-source{color:var(--app-text-muted,#6b766f);white-space:nowrap;background:#ffffffd1;border-radius:999px;flex:none;padding:5px 8px;font-size:11px;font-weight:800;line-height:1.2}@media (max-width:380px){.word-example-phrases-header,.word-example-phrase{align-items:flex-start}.word-example-phrases-note{text-align:left}}.learn-back-button:focus-visible,.learn-secondary-button:focus-visible,.learn-pronunciation-button:focus-visible,.learn-answer-button:focus-visible{outline:2px solid var(--app-brand,#18a05f);outline-offset:2px}.learn-word-card{animation:.18s ease-out learn-card-enter}.learn-answer-bar{z-index:30;width:100%;max-width:var(--app-mobile-max-width,520px);border-top:1px solid var(--app-border,#e1e8e2);padding:12px var(--app-page-padding,16px) calc(14px + env(safe-area-inset-bottom));background:#fffffff7;margin-inline:auto;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -14px 32px #12211c14}.learn-answer-row{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.learn-navigation-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px;display:grid}.learn-next-button{background:var(--app-brand-soft,#e7f7ee);color:var(--app-brand-dark,#087443);border-color:#bbf7d0}.learn-answer-button{text-align:center;border:1px solid;border-radius:16px;min-width:0;min-height:52px;padding-inline:4px;font-size:14px;font-weight:800;line-height:1.2}.learn-answer-button:disabled{cursor:not-allowed;opacity:.62}.learn-answer-button-unknown{color:#be123c;background:#fff1f2;border-color:#fecdd3}.learn-answer-button-vague{color:#c2410c;background:#fff7ed;border-color:#fed7aa}.learn-answer-button-known{color:#047857;background:#ecfdf5;border-color:#bbf7d0}.book-detail-page-shell{background:var(--app-shell-bg,#eef2ed);min-height:100vh;color:var(--app-text,#14211c);overflow-x:hidden}.book-detail-page-frame{width:100%;max-width:var(--app-mobile-max-width,520px);background:var(--app-page-bg,#f7f9f6);flex-direction:column;min-height:100vh;margin-inline:auto;display:flex;position:relative}.book-detail-page-content{padding:18px var(--app-page-padding,16px) calc(128px + env(safe-area-inset-bottom)) var(--app-page-padding,16px);flex:1}.book-detail-topbar{border:1px solid var(--app-border,#e1e8e2);background:#ffffffeb;border-radius:18px;align-items:center;gap:10px;padding:10px;display:flex;box-shadow:0 8px 24px #12211c0d}.book-stat-card,.book-mini-stat{background:#f8faf9;border-radius:16px;min-width:0;padding:12px}.book-mini-stat p{color:var(--app-text-muted,#6b766f);font-size:11px;font-weight:700;line-height:1.3}.book-mini-stat strong{color:var(--app-text,#14211c);margin-top:5px;font-size:14px;line-height:1.35;display:block}.book-secondary-action,.book-load-more-button{border:1px solid var(--app-border,#e1e8e2);border-radius:var(--app-button-radius,16px);width:100%;min-height:44px;color:var(--app-brand-dark,#087443);text-align:center;background:#fff;justify-content:center;align-items:center;gap:6px;font-size:14px;font-weight:800;line-height:1.25;display:flex;box-shadow:0 8px 24px #12211c0d}.book-secondary-action:focus-visible,.book-load-more-button:focus-visible,.book-filter-chip:focus-visible,.book-word-row:focus-visible{outline:2px solid var(--app-brand,#18a05f);outline-offset:2px}.book-filter-chip{border:1px solid var(--app-border,#e1e8e2);min-height:36px;color:var(--app-text-muted,#6b766f);background:#fff;border-radius:999px;flex:none;align-items:center;gap:5px;padding-inline:13px;font-size:13px;font-weight:800;display:flex}.book-filter-chip-active{border-color:var(--app-brand,#18a05f);background:var(--app-brand,#18a05f);color:#fff}.book-status-badge,.book-word-status{white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;gap:4px;font-size:12px;font-weight:800;line-height:1.25;display:inline-flex}.book-status-badge{padding:6px 10px}.book-word-status{flex:none;padding:5px 9px}.book-status-known{color:#047857;background:#ecfdf5}.book-status-vague{color:#c2410c;background:#fff7ed}.book-status-unknown{color:#be123c;background:#fff1f2}.book-status-unlearned{color:#64748b;background:#f1f5f9}.book-word-row{border:1px solid var(--app-border,#e1e8e2);background:#fff;border-radius:18px;min-width:0;padding:15px;display:flex;box-shadow:0 8px 22px #12211c0a}.book-load-more-button{background:var(--app-brand-soft,#e7f7ee);border-color:#bbf7d0}@keyframes learn-card-enter{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.ui-primary-button:active,.ui-quick-link:active{transform:none}.ui-progress-value{transition:none}.learn-word-card{animation:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-divide-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-ordinal{syntax:"*";inherits:false}@property --tw-slashed-zero{syntax:"*";inherits:false}@property --tw-numeric-figure{syntax:"*";inherits:false}@property --tw-numeric-spacing{syntax:"*";inherits:false}@property --tw-numeric-fraction{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}