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94%,transparent);border-color:var(--line);height:80px;box-shadow:0 -8px 30px #1f1f1e09}.bottom-nav button{gap:2px}.bottom-nav button:focus-visible{outline:none}.bottom-nav i{font-size:20px}.bottom-nav button.active{color:var(--text)}.bottom-nav button.active i{color:var(--accent)}.bottom-nav em{background:var(--accent);color:#fff}.wrong-page-content{overscroll-behavior:contain;height:calc(100dvh - 80px);padding-bottom:18px;overflow-y:auto}.page-header{margin-top:16px}.page-header .eyebrow{color:var(--muted)}.page-header h1{font-size:32px;font-weight:650}.practice-list>button,.setting-list>button{background:var(--surface);box-shadow:none;border-radius:18px}.tip-card b,.privacy-card b{font-weight:650}.filter-tabs button{background:var(--surface)}.filter-tabs button.active{background:var(--soft);color:var(--text);border-color:color-mix(in srgb,var(--accent) 36%,var(--line))}.wrong-list 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30%,var(--line));box-shadow:none;border-radius:14px}.secondary-button{border-radius:14px}.answer-result{border-radius:16px}.reference,.rating{background:var(--surface);border-radius:18px}.quiz-footer{background:var(--bg);box-shadow:0 -8px 30px #1f1f1e0a}.quiz-footer button{border-radius:14px}.quiz-footer .next-button{background:var(--surface);color:var(--text);border-color:color-mix(in srgb,var(--accent) 30%,var(--line))}.report-mark{background:var(--soft);color:var(--accent-dark);box-shadow:0 0 0 12px color-mix(in srgb,var(--accent) 6%,transparent)}.report-shell>.eyebrow{color:var(--muted)}.report-card{background:var(--surface);border-radius:20px}.bottom-nav em,.options button.selected b{color:var(--on-accent)}.options button.correct,.judge-grid button.correct{border-color:var(--success-border);background:var(--success-bg);color:var(--success-text)}.options button.wrong-answer,.judge-grid button.wrong-answer{border-color:var(--danger-border);background:var(--danger-bg);color:var(--danger-text)}.answer-result.ok{background:var(--success-bg);color:var(--success-text)}.answer-result.bad{background:var(--danger-bg);color:var(--danger-text)}.mastery-progress{border:1px solid var(--line);background:var(--surface);border-radius:15px;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;padding:13px 16px;display:flex}.mastery-progress b{color:var(--text);font-size:13px}.mastery-progress span{color:var(--muted);text-align:right;font-size:11px}.mastery-progress.done{border-color:var(--success-border);background:var(--success-bg)}.mastery-progress.done b,.mastery-progress.done span{color:var(--success-text)}.options button:disabled,.judge-grid button:disabled{opacity:1}@media (width>=561px){body{padding:24px 0}.app-shell{border-radius:24px;min-height:calc(100dvh - 48px)}.bottom-nav,.quiz-footer{border-radius:0 0 24px 24px;bottom:24px}.wrong-page-content{height:calc(100dvh - 128px)}}