*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color:#14b8a6;--primary-dark:#0d9488;--secondary-color:#10b981;--accent-color:#22c55e;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f0fdf4;--card-bg:#ffffff;--section-bg:#ecfdf5;--border-color:#d1fae5;--shadow:0 2px 8px rgba(0,0,0,0.04);--shadow-hover:0 4px 12px rgba(0,0,0,0.06);--radius:12px;--radius-sm:8px;--transition:all 0.25s cubic-bezier(0.4,0,0.2,1)}[data-theme="coral-peach"]{--primary-color:#ff7b72;--primary-dark:#ff6b6b;--secondary-color:#ffb347;--accent-color:#ff8a80;--text-color:#3a3d4a;--text-light:#6b7280;--text-lighter:#9ca3af;--bg-color:#fffcfa;--card-bg:#ffffff;--section-bg:#fff8f5;--border-color:#ffe4de}[data-theme="slate-cyan"]{--primary-color:#64748b;--primary-dark:#475569;--secondary-color:#06b6d4;--accent-color:#0ea5e9;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f8fafc;--card-bg:#ffffff;--section-bg:#f1f5f9;--border-color:#e2e8f0}[data-theme="professional-blue"]{--primary-color:#3b82f6;--primary-dark:#2563eb;--secondary-color:#06b6d4;--accent-color:#0ea5e9;--text-color:#1e293b;--text-light:#475569;--text-lighter:#64748b;--bg-color:#f8fafc;--card-bg:#ffffff;--section-bg:#eff6ff;--border-color:#dbeafe}[data-theme="indigo-sky"]{--primary-color:#6366f1;--primary-dark:#4f46e5;--secondary-color:#0ea5e9;--accent-color:#38bdf8;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f8faff;--card-bg:#ffffff;--section-bg:#eef2ff;--border-color:#dbeafe}[data-theme="light-indigo-sky"]{--primary-color:#818cf8;--primary-dark:#6366f1;--secondary-color:#38bdf8;--accent-color:#7dd3fc;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f0f6ff;--card-bg:#ffffff;--section-bg:#ddd6fe;--border-color:#c7d2fe}[data-theme="forest-lime"]{--primary-color:#059669;--primary-dark:#047857;--secondary-color:#84cc16;--accent-color:#a3e635;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f7fee7;--card-bg:#ffffff;--section-bg:#ecfccb;--border-color:#d9f99d}[data-theme="amber-orange"]{--primary-color:#f59e0b;--primary-dark:#d97706;--secondary-color:#fb923c;--accent-color:#fbbf24;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#fffbeb;--card-bg:#ffffff;--section-bg:#fef3c7;--border-color:#fde68a}[data-theme="sky-mint"]{--primary-color:#38bdf8;--primary-dark:#0ea5e9;--secondary-color:#34d399;--accent-color:#6ee7b7;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#f0f9ff;--card-bg:#ffffff;--section-bg:#e0f2fe;--border-color:#bae6fd}[data-theme="bright-teal-lime"]{--primary-color:#2dd4bf;--primary-dark:#14b8a6;--secondary-color:#a3e635;--accent-color:#bef264;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#ecfeff;--card-bg:#ffffff;--section-bg:#cffafe;--border-color:#a5f3fc}[data-theme="golden-peach"]{--primary-color:#fbbf24;--primary-dark:#f59e0b;--secondary-color:#fb923c;--accent-color:#fcd34d;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#fffbeb;--card-bg:#ffffff;--section-bg:#fef3c7;--border-color:#fde68a}[data-theme="coral-soft-orange"]{--primary-color:#ff8a80;--primary-dark:#ff7b72;--secondary-color:#ffab91;--accent-color:#ffccbc;--text-color:#334155;--text-light:#64748b;--text-lighter:#94a3b8;--bg-color:#fff5f5;--card-bg:#ffffff;--section-bg:#ffe4e1;--border-color:#ffd4cc}[data-theme="navy-gray"]{--primary-color:#1e3a8a;--primary-dark:#1e40af;--secondary-color:#6b7280;--accent-color:#9ca3af;--text-color:#1f2937;--text-light:#4b5563;--text-lighter:#6b7280;--bg-color:#f9fafb;--card-bg:#ffffff;--section-bg:#eff6ff;--border-color:#dbeafe}[data-theme="corporate-teal"]{--primary-color:#0d9488;--primary-dark:#0f766e;--secondary-color:#14b8a6;--accent-color:#2dd4bf;--text-color:#0f172a;--text-light:#334155;--text-lighter:#64748b;--bg-color:#f8fafb;--card-bg:#ffffff;--section-bg:#f0fdfa;--border-color:#ccfbf1}[data-theme="enterprise-blue"]{--primary-color:#1d4ed8;--primary-dark:#1e40af;--secondary-color:#3b82f6;--accent-color:#60a5fa;--text-color:#0f172a;--text-light:#334155;--text-lighter:#64748b;--bg-color:#f8fafc;--card-bg:#ffffff;--section-bg:#eff6ff;--border-color:#bfdbfe}[data-theme="linear"]{--primary-color:#5e6ad2;--primary-dark:#4a54c5;--secondary-color:#8b8fc8;--accent-color:#a5b4fc;--text-color:#0d0e12;--text-light:#3c3f52;--text-lighter:#717492;--bg-color:#fafafa;--card-bg:#ffffff;--section-bg:#f4f4f8;--border-color:#e0e0ed}[data-theme="sage-stone"]{--primary-color:#6a8a6e;--primary-dark:#526b56;--secondary-color:#a09b7e;--accent-color:#8aab8e;--text-color:#2e3028;--text-light:#545548;--text-lighter:#8a8a78;--bg-color:#f6f5ef;--card-bg:#fefefe;--section-bg:#eceee6;--border-color:#d5d9cc}[data-theme="warm-parchment"]{--primary-color:#b07d4a;--primary-dark:#8f6235;--secondary-color:#c9a96e;--accent-color:#d4b483;--text-color:#2c2416;--text-light:#5c4a30;--text-lighter:#9a8060;--bg-color:#fdf8f0;--card-bg:#ffffff;--section-bg:#f5ede0;--border-color:#e8d9c0}[data-theme="rose-blush"]{--primary-color:#be4b7a;--primary-dark:#9e3562;--secondary-color:#d97fa8;--accent-color:#e8a0c0;--text-color:#2a1520;--text-light:#5c3a4a;--text-lighter:#9a7080;--bg-color:#fdf5f7;--card-bg:#ffffff;--section-bg:#fce8ef;--border-color:#f0ccd9}[data-theme="graphite"]{--primary-color:#24292f;--primary-dark:#0d1117;--secondary-color:#57606a;--accent-color: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heme="wabi-sabi"]{--primary-color:#8c7355;--primary-dark:#705c40;--secondary-color:#b8a080;--accent-color:#d4c4a8;--text-color:#1e180e;--text-light:#4a3e2c;--text-lighter:#8a7c64;--bg-color:#faf7f2;--card-bg:#fefefe;--section-bg:#f2ece0;--border-color:#e0d4c0}[data-theme="autumn-spice"]{--primary-color:#c2540a;--primary-dark:#a3420a;--secondary-color:#d97706;--accent-color:#fb923c;--text-color:#1c0f00;--text-light:#5c3010;--text-lighter:#a06030;--bg-color:#fdfaf5;--card-bg:#ffffff;--section-bg:#fef3e2;--border-color:#fed7aa}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--bg-color);min-height:100vh}.container{max-width:800px;margin:0 auto;padding:0 16px}h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:clamp(1.5rem,3vw,2rem)}h3{font-size:clamp(1.1rem,2vw,1.25rem)}.sticky-tabs{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);margin:0 0 1.5rem 0;padding:0.75rem 1rem;border-bottom:1px solid var(--border-color);display:flex;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.sticky-tabs::-webkit-scrollbar{display:none}.tab-list{display:flex;gap:0.75rem;list-style:none;padding:0;margin:0}.tab-link{display:inline-block;padding:0.5rem 1rem;color:var(--text-light);text-decoration:none;font-weight:500;font-size:0.9rem;border-radius:20px;white-space:nowrap;background:var(--section-bg);transition:var(--transition);border:1px solid transparent}.tab-link:hover,.tab-link.active{background:var(--primary-color);color:white;border-color:var(--primary-color)}.content-single-column{display:flex;flex-direction:column;gap:1.5rem}.accordion-section{border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;background:white;margin-bottom:1rem;transition:var(--transition);content-visibility:auto}.accordion-section[open]{box-shadow:var(--shadow);border-color:transparent}.accordion-header{padding:1rem 1.25rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;list-style:none;background:white}.accordion-header::-webkit-details-marker{display:none}.accordion-header h3{margin:0;display:flex;align-items:center;gap:0.75rem;font-weight:600;color:var(--text-color)}.accordion-icon{color:var(--text-lighter);transition:transform 0.3s ease}.accordion-section[open] .accordion-icon{transform:rotate(180deg)}.accordion-content{padding:0 1.25rem 1.5rem 1.25rem;border-top:1px solid var(--section-bg)}.header{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:white;padding:1.1rem 0 1.4rem;margin-bottom:1.5rem;box-shadow:0 2px 16px rgba(0,0,0,0.10);position:relative}.header::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,255,255,0.10) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;overflow:hidden}.header-content{position:relative;display:flex;flex-direction:column;align-items:center;gap:0.85rem;max-width:860px;margin:0 auto;padding:0 1.5rem}.header-brand{display:flex;align-items:center;gap:0.45rem;font-family:'Inter',sans-serif;font-size:0.78rem;font-weight:600;letter-spacing:0.12em;text-transform:uppercase;color:rgba(255,255,255,0.88)}.header-brand i{font-size:0.9rem;color:rgba(255,255,255,0.75)}.search-section{margin-bottom:0}.search-container{max-width:800px;margin:0 auto;width:100%}.search-box{display:flex;align-items:center;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius);padding:0.5rem;gap:0.5rem;box-shadow:0 2px 6px rgba(0,0,0,0.04);transition:var(--transition)}.search-box:focus-within{border-color:var(--primary-color);box-shadow:0 4px 12px rgba(16,185,129,0.12)}.search-box:focus-within{border-color:var(--primary-color);box-shadow:var(--shadow-hover)}.search-box{position:relative;z-index:10}.suggestions-dropdown{position:fixed;top:var(--suggestions-top,0);left:var(--suggestions-left,0);right:auto;width:min(var(--suggestions-width,420px),calc(100vw - 24px));background:white;border:1px solid var(--border-color);border-radius:var(--radius-sm);max-height:var(--suggestions-max-height,min(440px,calc(100vh - 24px)));overflow-y:auto;overscroll-behavior:contain;box-shadow:0 4px 12px rgba(20,184,166,0.15);z-index:2147483000;display:none}.suggestions-dropdown.active{display:block}.suggestion-item{padding:0.5rem 1rem;cursor:pointer;transition:all 0.2s ease;color:var(--text-color);font-size:0.9rem;display:flex;align-items:center;justify-content:space-between;gap:0.75rem;border-bottom:1px solid rgba(0,0,0,0.04)}.suggestion-item:last-child{border-bottom:none}.suggestion-item:hover,.suggestion-item.selected{background-color:rgba(16,185,129,0.1);color:var(--primary-color);padding-left:1.5rem}.suggestion-text{flex:1;font-weight:500}.suggestion-source{font-size:0.75rem;color:var(--text-lighter);background:rgba(0,0,0,0.05);padding:0.2rem 0.5rem;border-radius:10px;opacity:0;transition:opacity 0.2s}.suggestion-item:hover .suggestion-source,.suggestion-item.selected .suggestion-source{opacity:1}.suggestion-icon{color:var(--text-lighter);font-size:0.9rem;opacity:0.5}.suggestion-item:hover .suggestion-icon,.suggestion-item.selected .suggestion-icon{color:var(--primary-color);opacity:1}.suggestions-loading{padding:1.5rem;text-align:center;color:var(--text-light);font-size:0.95rem;display:flex;align-items:center;justify-content:center;gap:0.75rem}.suggestions-loading .spinner-small{width:18px;height:18px;border:2px solid rgba(16,185,129,0.3);border-top-color:var(--primary-color);border-radius:50%;animation:spin 0.8s linear infinite}.suggestions-empty{padding:1.5rem;text-align:center;color:var(--text-light);font-style:italic;font-size:0.95rem}.suggestions-error{padding:1rem;text-align:center;color:#e53e3e;background:#fff5f5;font-size:0.9rem;margin:0.5rem;border-radius:var(--radius-sm)}@media (max-width:600px){.suggestions-dropdown{width:min(var(--suggestions-width,420px),calc(100vw - 16px));max-height:var(--suggestions-max-height,min(56vh,calc(100vh - 16px)))}.suggestion-item{padding:0.5rem 0.85rem;font-size:0.9rem}}.search-icon{color:var(--text-lighter);font-size:1.2rem;padding:0 1rem}#searchInput{flex:1;border:none;padding:1rem 0;font-size:1.1rem;outline:none;background:transparent}#searchInput.shake{animation:shake 0.3s ease-in-out;border-color:var(--accent-color)}.search-btn{background:var(--primary-color);color:white;border:none;padding:0.875rem 1.75rem;border-radius:var(--radius-sm);font-weight:500;font-size:0.95rem;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:0.5rem;white-space:nowrap}.search-btn:hover{background:var(--primary-dark);box-shadow:0 2px 8px rgba(20,184,166,0.25);transform:translateY(-1px)}.search-btn:active{transform:translateY(0)}.search-btn:hover{background:var(--primary-dark);transform:translateY(-2px)}.search-hint{margin-top:1rem;color:var(--text-light);font-size:0.9rem;display:flex;align-items:center;gap:0.5rem;justify-content:center;flex-wrap:wrap}.speed-dial{position:fixed;right:2rem;bottom:2rem;z-index:999;display:flex;flex-direction:column;align-items:center;gap:0}.speed-dial-main-btn{width:60px;height:60px;border-radius:50%;background:var(--primary-color);color:white;border:none;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.2);display:flex;align-items:center;justify-content:center;font-size:1.4rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1);position:relative;z-index:1}.speed-dial-main-btn:hover{transform:scale(1.1) translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,0.25)}.speed-dial-main-btn:active{transform:scale(0.95)}.speed-dial-icon{transition:transform 0.3s cubic-bezier(0.4,0,0.2,1)}.speed-dial.open .speed-dial-icon{transform:rotate(45deg)}.speed-dial-items{position:absolute;bottom:calc(100% + 0.75rem);right:0;display:flex;flex-direction:column-reverse;align-items:flex-end;gap:0.65rem;pointer-events:none}.speed-dial-item{display:flex;align-items:center;gap:0.6rem;opacity:0;transform:translateY(16px) scale(0.85);transition:opacity 0.22s ease,transform 0.22s cubic-bezier(0.34,1.56,0.64,1);transition-delay:calc(var(--i) * 0.06s);pointer-events:none}.speed-dial.open .speed-dial-item{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;transition-delay:calc(var(--i) * 0.07s)}.speed-dial-child-btn{width:50px;height:50px;border-radius:50%;background:var(--primary-color);color:white;border:none;cursor:pointer;box-shadow:0 3px 10px rgba(0,0,0,0.18);display:flex;align-items:center;justify-content:center;font-size:1.2rem;transition:all 0.2s ease;position:relative;flex-shrink:0}.speed-dial-child-btn:hover{transform:scale(1.12);box-shadow:0 5px 14px rgba(0,0,0,0.22);filter:brightness(1.1)}.speed-dial-child-btn:active{transform:scale(0.95)}.speed-dial-label{background:rgba(30,30,30,0.78);color:white;font-size:0.75rem;font-weight:500;padding:0.3rem 0.65rem;border-radius:6px;white-space:nowrap;backdrop-filter:blur(4px);pointer-events:none;letter-spacing:0.02em}.history-badge{position:absolute;top:-5px;right:-5px;background:#f72585;color:white;border-radius:12px;padding:0.15rem 0.4rem;font-size:0.75rem;font-weight:600;min-width:20px;text-align:center;box-shadow:0 2px 8px rgba(247,37,133,0.4)}.history-panel{position:fixed;right:-400px;top:0;width:400px;height:100vh;background:white;box-shadow:-4px 0 20px rgba(0,0,0,0.1);z-index:1001;display:flex;flex-direction:column;transition:right 0.3s cubic-bezier(0.4,0,0.2,1)}.history-panel.active{right:0}.history-panel-header{padding:1.5rem;background:var(--primary-color);color:white;display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.history-panel-header h3{margin:0;font-size:1.25rem;display:flex;align-items:center;gap:0.5rem}.close-history-btn{background:rgba(255,255,255,0.2);border:none;color:white;width:36px;height:36px;border-radius:50%;cursor:pointer;transition:all 0.2s ease;display:flex;align-items:center;justify-content:center;font-size:1.25rem}.close-history-btn:hover{background:rgba(255,255,255,0.3);transform:rotate(90deg)}.history-panel-content{flex:1;overflow-y:auto;padding:1rem}.empty-history{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1rem;color:var(--text-light);text-align:center}.empty-history i{font-size:3rem;margin-bottom:1rem;opacity:0.3}.history-items{display:flex;flex-direction:column;gap:0.75rem}.history-item{background:white;border:1px solid #e0e0e0;border-radius:12px;padding:1rem;cursor:pointer;transition:all 0.2s ease;display:flex;justify-content:space-between;align-items:center;gap:1rem}.history-item:hover{border-color:var(--primary-color);background:var(--section-bg);transform:translateX(-4px);box-shadow:0 2px 8px rgba(20,184,166,0.12)}.history-item-content{display:flex;align-items:center;gap:0.75rem;flex:1;min-width:0}.history-item-content i{font-size:1.1rem;color:var(--primary-color);flex-shrink:0}.history-item-text{flex:1;min-width:0}.history-item-word{font-weight:600;color:var(--text-color);font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-item-time{font-size:0.8rem;color:var(--text-light);margin-top:0.2rem}.history-item-delete{background:transparent;border:none;color:var(--text-light);cursor:pointer;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;flex-shrink:0}.history-item-delete:hover{background:#fee;color:#e53e3e}.history-panel-footer{padding:1rem 1.5rem;border-top:1px solid #e0e0e0;flex-shrink:0}.clear-all-history-btn{width:100%;padding:0.75rem 1rem;background:#ff8fa3;color:white;border:none;border-radius:8px;font-size:0.95rem;font-weight:600;cursor:pointer;transition:all 0.3s ease;display:flex;align-items:center;justify-content:center;gap:0.5rem}.clear-all-history-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(255,143,163,0.3)}.clear-all-history-btn:active{transform:translateY(0)}.history-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:1000;opacity:0;visibility:hidden;transition:opacity 0.3s ease,visibility 0.3s ease}.history-overlay.active{opacity:1;visibility:visible}.loading-container{text-align:center;padding:3rem}.loading-spinner{display:flex;flex-direction:column;align-items:center;gap:1rem}.spinner{width:50px;height:50px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.section-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;gap:0.75rem}.section-loading .spinner{width:30px;height:30px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}.section-loading p{color:var(--text-light);font-size:0.9rem;margin:0}.section-loading-inline{display:flex;align-items:center;gap:0.5rem;padding:0.75rem 1rem;color:var(--text-light);font-size:0.85rem;background:var(--section-bg);border-radius:var(--radius-sm);margin:0.5rem 0}.spinner-small{width:16px;height:16px;border:2px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}.error-message-inline{color:var(--error-color);font-size:0.85rem;padding:0.5rem 1rem;background:rgba(220,53,69,0.1);border-radius:var(--radius-sm);margin:0.5rem 0}.no-data{text-align:center;padding:2rem;color:var(--text-lighter);font-style:italic}.error-message{text-align:center;padding:2rem;color:#c62828;background:#ffebee;border-radius:var(--radius-sm);font-size:0.9rem}.results-container{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);overflow:visible;margin-bottom:2rem}.word-header{background:var(--card-bg);padding:1.5rem;border-bottom:1px solid var(--border-color)}.word-header-main{display:flex;flex-direction:column;gap:1rem}.word-title-row{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap}.word-headword{font-family:'Merriweather',serif;font-size:2rem;color:var(--text-color);margin:0;line-height:1.2}.word-meta-inline{display:flex;flex-wrap:wrap;gap:0.75rem;align-items:center}.word-meta-group{display:flex;align-items:center;gap:0.75rem}.word-pronunciation{display:flex;align-items:center;gap:0.5rem;padding:0;background:transparent;font-size:0.9rem}.word-frequency{display:flex;align-items:center;gap:0.4rem;padding:0.4rem 0.75rem;background:rgba(229,62,62,0.08);border-radius:8px;font-size:0.85rem;color:var(--text-color);font-weight:500;white-space:nowrap}.word-frequency i{color:#e53e3e;font-size:0.85rem}.word-frequency .frequency-loading{display:inline-block;width:4rem;height:0.9rem;border-radius:4px;background:linear-gradient(90deg,#e2e8f0 25%,#cbd5e1 50%,#e2e8f0 75%);background-size:200% 100%;animation:shimmer 1.4s infinite linear}.header-meta{display:flex;align-items:center;gap:1rem}.entry-tabs-container{display:none}.word-meta{display:flex;gap:1.5rem;flex-wrap:wrap;margin-bottom:1rem}.pronunciation,.part-of-speech,.frequency{display:flex;align-items:center;gap:0.5rem;padding:0.5rem 1rem;background:white;border-radius:20px;font-size:0.9rem;font-weight:500;box-shadow:0 2px 4px rgba(0,0,0,0.05)}.pronunciation-container{display:flex;align-items:center;gap:0.5rem}.pronunciation-card{background:var(--section-bg)}.pronunciation-wrapper{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.pronunciation{font-family:'Courier New',monospace;font-size:1.25rem;color:var(--text-dark);font-weight:500}.pronunciation-audio{height:32px;border-radius:16px;background:transparent}.pronunciation-audio::-webkit-media-controls-panel{background:transparent}.pronunciation-audio::-webkit-media-controls-enclosure{background:transparent}.audio-play-btn{background:var(--primary-color);color:white;border:none;padding:0.5rem 0.75rem;border-radius:20px;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:0.25rem;font-size:0.85rem;min-width:44px;min-height:44px;-webkit-tap-highlight-color:transparent}.audio-play-btn:hover{background:var(--primary-dark);transform:translateY(-1px)}.audio-play-btn:active{transform:translateY(0)}.audio-play-btn.playing{background:var(--accent-color,#e91e63);animation:pulse 1.5s infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.8}}.audio-play-btn i{font-size:1rem;pointer-events:none}.part-of-speech{background:#e3f2fd;color:#1565c0}.frequency{background:rgba(229,62,62,0.1);color:#dc2626}.word-stats{display:flex;gap:2rem;margin-top:1rem}.entry-tabs-container{display:inline-flex;align-items:center}.entry-selector-label{display:none}.entry-selector-label{display:flex;align-items:center;gap:0.5rem;font-weight:600;color:var(--text-color);margin-bottom:0.75rem;font-size:0.9rem}.entry-selector-label i{color:var(--primary-color);font-size:1rem}.entry-selector-hint{margin-left:0.5rem;cursor:help;opacity:0.6;transition:opacity 0.2s ease}.entry-selector-hint:hover{opacity:1}.entry-selector-hint i{font-size:0.85rem;color:var(--text-light)}.entry-dropdown{width:100%;padding:0.75rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-sm);background:white;font-size:0.9rem;font-weight:500;color:var(--text-color);cursor:pointer;transition:var(--transition);appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1rem;padding-right:3rem}.entry-dropdown:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.entry-dropdown:hover{border-color:var(--primary-color)}.entry-tabs{display:flex;gap:0.75rem;flex-wrap:wrap}.entry-tab{background:white;border:2px solid var(--border-color);border-radius:var(--radius-sm);padding:1rem 1.25rem;cursor:pointer;transition:all 0.3s ease;display:flex;flex-direction:column;gap:0.4rem;min-width:140px;text-align:left}.entry-tab:hover{border-color:var(--primary-color);box-shadow:0 4px 12px rgba(16,185,129,0.15);transform:translateY(-2px)}.entry-tab.active{background:var(--primary-color);border-color:var(--primary-color);color:white;box-shadow:0 4px 12px rgba(20,184,166,0.25)}.entry-tab-number{font-weight:700;font-size:1rem;color:var(--primary-color)}.entry-tab.active .entry-tab-number{color:white}.entry-tab-meta{font-size:0.85rem;color:var(--text-light);font-weight:500}.entry-tab.active .entry-tab-meta{color:rgba(255,255,255,0.9)}.entry-tab-count{font-size:0.75rem;color:var(--text-lighter);margin-top:0.2rem}.entry-tab.active .entry-tab-count{color:rgba(255,255,255,0.8)}.stat{display:flex;align-items:center;gap:0.5rem;color:var(--text-light);font-size:0.9rem}@media (max-width:1024px){.content-grid{grid-template-columns:1fr;gap:1.5rem}}.card:hover{box-shadow:var(--shadow-hover)}.card.fullscreen{position:fixed;top:0;left:0;right:0;bottom:0;max-height:100vh;z-index:1000;margin:0;border-radius:0;animation:expandCard 0.3s ease-out}.fullscreen-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:999;animation:fadeIn 0.3s ease-out}@keyframes expandCard{from{transform:scale(0.9);opacity:0.8}to{transform:scale(1);opacity:1}}.card-actions{display:flex;gap:0.5rem}.card-action-btn{background:rgba(255,255,255,0.2);border:none;color:white;width:32px;height:32px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.card-action-btn:hover{background:rgba(255,255,255,0.3)}.load-more-btn-header{background:rgba(255,255,255,0.95);color:var(--primary-color);border:none;padding:0.5rem 1rem;border-radius:20px;font-size:0.85rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:0.4rem;transition:all 0.3s ease;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.load-more-btn-header:hover:not(:disabled){background:white;transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,0.15)}.load-more-btn-header:active:not(:disabled){transform:translateY(0)}.load-more-btn-header:disabled{opacity:0.7;cursor:not-allowed}.load-more-btn-header i{font-size:0.9rem}.load-more-container{text-align:center;margin-top:1rem}.senses-list{display:flex;flex-direction:column;gap:1.5rem}.form-pronunciation-header{margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.word-pronunciation{display:flex;justify-content:flex-start;align-items:center;margin:0.5rem 0;width:100%}.sense-item-container{background:#fafbfc;padding:1.5rem;border-radius:12px;box-shadow:0 1px 3px rgba(0,0,0,0.03);transition:box-shadow 0.3s ease;border:1px solid var(--border-color)}.sense-item-container:hover{box-shadow:0 2px 6px rgba(0,0,0,0.05)}.sense-item-container.sense-placeholder{min-height:200px;display:flex;align-items:center;justify-content:center}.sense-item{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid #e0e0e0}.sense-item:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.sense-definition{font-size:1.1rem;font-weight:500;color:var(--text-color);margin-bottom:0.75rem;line-height:1.5}.sense-pronunciation{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap}.pronunciation{font-family:'Courier New',monospace;font-size:1rem;color:var(--text-color);font-weight:500}.pronunciation-audio-small{height:28px;border-radius:6px;background:transparent}.pronunciation-audio-small::-webkit-media-controls-panel{background:transparent}.pronunciation-audio-small::-webkit-media-controls-enclosure{background:transparent}.sense-pos{display:inline-block;padding:0.15rem 0.6rem;margin:0 0.4rem;background:#e3f2fd;color:#1565c0;border-radius:12px;font-size:0.85rem;font-weight:600}.sense-examples{margin:1rem 0}.sense-examples .example-item{background:#fafbfc;padding:0.75rem 1rem;border-radius:var(--radius-sm);margin-bottom:0.5rem;border-left:3px solid var(--primary-color);font-style:italic;border:1px solid var(--border-color);border-left:3px solid var(--primary-color)}.sense-examples .example-item:last-child{margin-bottom:0}.sense-collocations,.sense-synonyms,.sense-antonyms{margin:0.75rem 0;font-size:0.95rem;color:var(--text-light)}.sense-collocations strong,.sense-synonyms strong,.sense-antonyms strong{display:block;margin-bottom:0.25rem}.sense-meta{display:flex;gap:0.5rem;margin-top:0.75rem;margin-bottom:0.75rem;flex-wrap:wrap;align-items:center}.tone-badge{padding:0.25rem 0.75rem;border-radius:12px;font-size:0.8rem;font-weight:500}.tone-negative{background:#ffebee;color:#c62828}.tone-neutral{background:#fff3e0;color:#ef6c00}.tone-positive{background:#e8f5e9;color:#2e7d32}.register-badge{padding:0.25rem 0.75rem;border-radius:12px;font-size:0.8rem;font-weight:500;background:#e3f2fd;color:#1565c0}.domain-badge{padding:0.25rem 0.75rem;border-radius:12px;font-size:0.8rem;font-weight:500;background:#fff3e0;color:#e65100}.usage-notes{background:#f5f5f5;padding:1rem;border-radius:var(--radius-sm);margin:1rem 0;border-left:4px solid var(--primary-color)}.example-item{background:#f8f9fa;padding:1rem;border-radius:var(--radius-sm);margin-bottom:1rem;border-left:3px solid var(--accent-color)}.example-item:last-child{margin-bottom:0}.example-correct{border-left-color:#4caf50}.example-incorrect{border-left-color:#f44336}.etymology-content{line-height:1.7}.etymology-text{line-height:1.7;margin-bottom:1rem}.root-analysis{background:#f8f9fa;padding:1rem;border-radius:var(--radius-sm);margin-top:1rem;border-left:4px solid var(--secondary-color)}.etymology-label{font-weight:600;color:var(--secondary-color);margin-bottom:0.5rem;font-size:0.9rem;text-transform:uppercase;letter-spacing:0.5px}.root-analysis > div:last-child{line-height:1.7;color:var(--text-color)}.synonyms-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media (max-width:768px){.synonyms-grid{grid-template-columns:1fr}}.synonyms-list,.antonyms-list{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.5rem}.synonym-tag,.antonym-tag{padding:0.4rem 0.8rem;border-radius:20px;font-size:0.85rem;font-weight:500}.synonym-tag{background:#e3f2fd;color:#1565c0}.antonym-tag{background:#ffebee;color:#c62828}.synonym-tags,.antonym-tags,.collocation-tags{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.5rem}.collocation-tag{display:inline-block;padding:0.4rem 0.8rem;border-radius:20px;font-size:0.85rem;font-weight:500;background:var(--section-bg);color:var(--secondary-color);border:1px solid var(--border-color)}.cultural-content{line-height:1.7}.cultural-notes-structured{animation:fadeInUp 0.4s ease-out}.cultural-notes-structured > .cultural-section{margin-bottom:1.25rem}.cultural-notes-structured > .cultural-section:last-child{margin-bottom:0}.cultural-section{background:transparent;padding:0;margin-bottom:1.5rem}.cultural-section:last-child{margin-bottom:0}.cultural-section-header{font-weight:600;font-size:0.9rem;color:var(--text-color);margin-bottom:0.75rem;display:flex;align-items:center;gap:0.5rem;padding-bottom:0.5rem;border-bottom:2px solid var(--border-color)}.cultural-section-header i{color:var(--primary-color);font-size:1rem}.cultural-section-content{color:var(--text-color);line-height:1.7;padding-left:1.5rem}.cultural-section-content p{margin:0;font-size:0.95rem}.cultural-list{margin:0;padding-left:1.5rem;list-style-type:disc}.cultural-list li{margin-bottom:0.5rem;font-size:0.95rem;color:var(--text-color);line-height:1.6}.cultural-list li:last-child{margin-bottom:0}.usage-context-enhanced{animation:fadeInUp 0.4s ease-out}.usage-context-enhanced > *{margin-bottom:1.25rem}.usage-context-enhanced > *:last-child{margin-bottom:0}.section-header{font-weight:600;font-size:1rem;color:var(--text-color);margin-bottom:0.75rem;display:flex;align-items:center;gap:0.5rem}.section-header i{color:var(--primary-color)}.modern-relevance-feature{background:var(--primary-color);color:white;padding:1.25rem;border-radius:var(--radius);box-shadow:0 4px 12px rgba(20,184,166,0.2);position:relative;overflow:hidden}.modern-relevance-feature::before{content:'';position:absolute;top:-50%;right:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,0.1) 0%,transparent 70%);pointer-events:none}.feature-header{display:flex;align-items:center;gap:0.5rem;margin-bottom:0.75rem;position:relative;z-index:1}.feature-icon{font-size:1.25rem;color:#ffd700}.feature-label{font-weight:600;font-size:0.95rem;text-transform:uppercase;letter-spacing:0.5px}.feature-content{line-height:1.7;font-size:0.95rem;position:relative;z-index:1}.regional-section{background:#f8f9fa;padding:1rem;border-radius:var(--radius-sm)}.regional-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:0.75rem;margin-top:0.75rem}.region-card{background:white;border:2px solid var(--border-color);border-radius:var(--radius-sm);padding:1rem;text-align:center;transition:var(--transition);cursor:default}.region-card:hover{border-color:var(--primary-color);box-shadow:0 4px 12px rgba(16,185,129,0.15);transform:translateY(-3px)}.region-flag{font-size:2rem;margin-bottom:0.5rem}.region-name{font-weight:600;font-size:0.9rem;color:var(--primary-color);margin-bottom:0.5rem}.region-text{font-size:0.85rem;color:var(--text-light);line-height:1.5}.regional-list{margin-top:0.75rem}.regional-item{padding:0.75rem;border-left:3px solid var(--primary-color);background:white;border-radius:var(--radius-sm);margin-bottom:0.5rem;line-height:1.6;font-size:0.9rem}.regional-item:last-child{margin-bottom:0}.region-icon{font-size:1.25rem;margin-right:0.5rem}.confusion-section{background:#fffef5;padding:1rem;border-radius:var(--radius-sm);border-left:4px solid #f59e0b}.confusion-list{margin-top:0.75rem}.confusion-item{display:flex;align-items:flex-start;gap:0.75rem;padding:0.75rem;background:white;border-radius:var(--radius-sm);margin-bottom:0.5rem;border:1px solid rgba(245,158,11,0.2);transition:var(--transition)}.confusion-item:hover{border-color:#f59e0b;box-shadow:0 2px 8px rgba(245,158,11,0.15)}.confusion-item:last-child{margin-bottom:0}.confusion-word{font-weight:600;color:#d97706;min-width:80px;font-size:0.9rem}.confusion-arrow{color:#f59e0b;font-weight:bold}.confusion-explanation{flex:1;font-size:0.9rem;color:var(--text-color);line-height:1.5}.confusion-text{font-size:0.9rem;color:var(--text-color);line-height:1.6}.context-item{margin-bottom:1rem}.context-item:last-child{margin-bottom:0}.context-label{font-weight:600;color:var(--primary-color);margin-bottom:0.25rem}@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.word-family-tags{display:flex;flex-wrap:wrap;gap:0.5rem}.word-tag{padding:0.4rem 0.8rem;background:var(--section-bg);color:var(--secondary-color);border-radius:20px;font-size:0.85rem;font-weight:500;transition:var(--transition)}.word-tag:hover{background:#e1bee7;transform:translateY(-1px)}.clickable-word{cursor:pointer;border-radius:3px;transition:background-color 0.15s ease,color 0.15s ease}.clickable-word:hover{background-color:var(--section-bg);color:var(--primary-color);text-decoration:underline;text-decoration-style:dotted;text-underline-offset:2px}.synonym-tag[data-lookup-word],.antonym-tag[data-lookup-word],.word-tag[data-lookup-word],.collocation-tag[data-lookup-word],.confusion-word[data-lookup-word]{cursor:pointer}.synonym-tag[data-lookup-word]:hover,.antonym-tag[data-lookup-word]:hover,.collocation-tag[data-lookup-word]:hover{filter:brightness(0.92);transform:translateY(-1px)}.confusion-word[data-lookup-word]:hover{text-decoration:underline}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-light)}.empty-state-content{max-width:500px;margin:0 auto}.empty-state i{color:var(--primary-color);opacity:0.7}.empty-state h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-color)}.example-searches{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:2rem}.example-btn{padding:0.75rem 1.5rem;background:var(--card-bg);border:2px solid var(--border-color);border-radius:var(--radius);font-weight:500;color:var(--text-color);cursor:pointer;transition:var(--transition)}.example-btn:hover{border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-2px)}.load-more-btn{display:block;width:100%;margin-top:1.5rem;padding:1rem 2rem;background:var(--primary-color);color:white;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:1rem;cursor:pointer;transition:var(--transition);box-shadow:0 2px 8px rgba(16,185,129,0.2)}.load-more-btn:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.load-more-btn:disabled{opacity:0.6;cursor:not-allowed}.load-more-btn:active:not(:disabled){transform:translateY(0)}.footer{text-align:center;padding:2rem 0;color:var(--text-light);border-top:1px solid var(--border-color);margin-top:2rem}.footer-note{font-size:0.9rem;margin-top:0.5rem;opacity:0.7}@media (max-width:768px){.entry-tabs{gap:0.5rem}.entry-tab{min-width:120px;padding:0.85rem 1rem}.entry-tab-number{font-size:0.95rem}.entry-tab-meta{font-size:0.8rem}.entry-tab-count{font-size:0.7rem}.header-brand{font-size:0.76rem}.header{padding:1rem 0 1.2rem;margin-bottom:1.25rem}.subtitle{font-size:1rem}.search-box{padding:0.4rem}#searchInput{padding:0.8rem 0;font-size:1rem}.search-btn{padding:0.8rem 1.5rem;font-size:0.9rem}.search-icon{padding:0 0.8rem;font-size:1rem}.word-header{padding:1.25rem}.word-headword{font-size:1.75rem}.content-grid{padding:1.5rem;gap:1.5rem}.card{max-height:400px;width:100%}.card-body{padding:1.25rem;overflow-x:hidden}.sense-item-container{padding:1rem}}@media (max-width:600px){.container{padding:0 12px}.content-grid{padding:1rem;gap:1rem;overflow-x:hidden}.card{width:100%;overflow:hidden}.sense-item-container{padding:0.875rem}.sense-definition,.sense-examples,.usage-notes,.example-item{word-break:break-word;overflow-wrap:break-word}.load-more-btn-header{padding:0.4rem 0.8rem;font-size:0.8rem;border-radius:16px}.load-more-btn-header i{font-size:0.8rem}}@media (max-width:480px){.word-title-row{gap:0.5rem}.word-headword{font-size:1.5rem}.entry-dropdown-custom{font-size:0.8rem;padding:0.4rem 0.85rem}.dropdown-selected{font-size:0.8rem}.dropdown-menu{min-width:100%;max-width:90vw}.entry-selector-container{margin-top:1rem;padding-top:1rem}.entry-selector-label{font-size:0.9rem;margin-bottom:0.75rem}.entry-tabs{gap:0.5rem;flex-direction:column}.entry-tab{width:100%;min-width:unset;padding:0.75rem 1rem;flex-direction:row;align-items:center;justify-content:space-between}.entry-tab-number{font-size:0.9rem}.entry-tab-meta{font-size:0.75rem;flex:1;text-align:center}.entry-tab-count{font-size:0.7rem;margin-top:0}.container{padding:0 10px}.header{padding:1rem 0 1.3rem;margin-bottom:1.5rem}.header-content{gap:0.75rem}.header-brand{font-size:0.75rem}.subtitle{font-size:0.9rem}.search-section{margin-bottom:0}.search-box{flex-direction:row;padding:0.3rem;gap:0.3rem}.search-icon{padding:0 0.5rem;font-size:0.9rem}#searchInput{padding:0.7rem 0.3rem;font-size:1rem}.search-btn{padding:0.7rem 1rem;font-size:0.85rem;white-space:nowrap}.search-btn i{display:none}.search-hint{font-size:0.8rem;margin-top:0.5rem;flex-direction:column;align-items:center;gap:0.5rem}.search-hint-label{width:100%;justify-content:center}.search-hint-chips{display:flex;flex-wrap:wrap;gap:0.45rem;justify-content:center}.word-header{padding:1rem}.word-header-main{gap:0.75rem}.word-headword{font-size:1.5rem}.word-meta-inline{gap:0.5rem}.word-pronunciation{font-size:0.85rem;padding:0}.word-frequency{font-size:0.8rem;padding:0.35rem 0.65rem}.example-searches{flex-direction:column}.example-btn{width:100%}.card{max-height:200px;width:100%}.definitions-card{max-height:500px}.content-grid{padding:0.75rem;overflow-x:hidden}.sense-item-container{padding:0.75rem}.cultural-section{padding:0.75rem}.cultural-section-header{font-size:0.85rem}.cultural-section-header i{font-size:1rem}.cultural-section-content{font-size:0.9rem}.cultural-list{padding-left:1.25rem}.cultural-list li{font-size:0.9rem;margin-bottom:0.4rem}.modern-relevance-feature{padding:1rem}.feature-content{font-size:0.9rem}.region-card{padding:0.75rem}.region-flag{font-size:1.5rem}.section-header{font-size:0.95rem}.regional-cards{grid-template-columns:1fr;gap:0.5rem}.confusion-item{flex-direction:column;gap:0.5rem}.confusion-word{min-width:auto}.confusion-arrow{display:none}.word-pronunciation .sense-pronunciation{flex-direction:row;align-items:center;gap:0.5rem;width:100%}.word-pronunciation .pronunciation{font-size:0.95rem}}@media (min-width:1400px){.card{max-height:700px}}@media (min-width:1025px) and (max-width:1399px){.card{max-height:600px}}@media (min-width:769px) and (max-width:1024px){.card{max-height:500px}}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-10px)}75%{transform:translateX(10px)}}.results-container{animation:fadeIn 0.5s ease-out}.card{animation:fadeIn 0.5s ease-out;animation-fill-mode:both}.card:nth-child(1){animation-delay:0.1s}.card:nth-child(2){animation-delay:0.2s}.card:nth-child(3){animation-delay:0.3s}.card:nth-child(4){animation-delay:0.4s}.card:nth-child(5){animation-delay:0.5s}.card:nth-child(6){animation-delay:0.6s}@media (max-width:768px){.history-panel{width:100%;right:-100%;height:calc(100vh - 20px);top:10px}.speed-dial{right:1rem;bottom:1rem}.speed-dial-main-btn{width:56px;height:56px;font-size:1.3rem}.speed-dial-child-btn{width:46px;height:46px;font-size:1.1rem}.history-badge{font-size:0.7rem;padding:0.1rem 0.35rem}}@media (max-width:480px){.history-panel-header{padding:1rem}.history-panel-header h3{font-size:1.1rem}.history-panel-content{padding:0.75rem}.history-item{padding:0.75rem}.history-item-word{font-size:0.95rem}}.sense-actions{margin-top:0.75rem;display:flex;justify-content:flex-end;gap:0.75rem}.sense-detail-btn{background:transparent;color:var(--primary-color);border:1px solid var(--border-color);padding:0.5rem 1rem;border-radius:6px;font-size:0.85rem;font-weight:500;cursor:pointer;display:inline-flex;align-items:center;gap:0.4rem;transition:all 0.2s ease;box-shadow:none}.sense-detail-btn:hover:not(:disabled){border-color:var(--primary-color);background:rgba(20,184,166,0.05);color:var(--primary-dark)}.sense-detail-btn:active:not(:disabled){transform:scale(0.98)}.sense-detail-btn:disabled{opacity:0.5;cursor:not-allowed}@keyframes blinkAndFade{0%{opacity:1}10%{opacity:0.3}20%{opacity:1}30%{opacity:0.3}40%{opacity:1}50%{opacity:1}100%{opacity:0}}.sense-detailed-badge{color:#2e7d32;font-size:0.85rem;font-weight:500;display:inline-flex;align-items:center;gap:0.4rem;padding:0.4rem 0.8rem;background:#e8f5e9;border-radius:6px;animation:blinkAndFade 3s ease-out forwards}.sense-loading-badge{color:var(--primary-color);background:rgba(20,184,166,0.1);animation:none}.sense-placeholder-basic{padding:1.5rem;text-align:center;color:#666}.sense-placeholder-basic .sense-definition{margin-bottom:1rem;color:#999;font-style:italic}.sense-loading-overlay{position:absolute;bottom:0;left:0;right:0;background:var(--section-bg);padding:0.8rem;text-align:center;color:var(--primary-color);font-size:0.9rem;font-weight:600;border-top:2px solid var(--primary-color);display:flex;align-items:center;justify-content:center;gap:0.5rem;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.7}}.sense-item-container{position:relative}.entry-dropdown-container{position:relative}.entry-dropdown-custom{display:flex;justify-content:space-between;align-items:center;background:var(--section-bg);border:1.5px solid var(--border-color);border-radius:8px;padding:0.4rem 0.75rem;cursor:pointer;transition:all 0.25s ease;user-select:none;font-size:0.85rem;gap:0.5rem;max-width:280px}.entry-dropdown-custom:hover{border-color:var(--primary-color);background:var(--card-bg);transform:translateY(-1px)}.dropdown-selected{font-weight:500;color:var(--text-color);font-size:0.85rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}.dropdown-arrow{color:var(--primary-color);transition:transform 0.25s ease;font-size:0.75rem;flex-shrink:0}.entry-dropdown-container.active .dropdown-arrow{transform:rotate(180deg)}.entry-dropdown-container.active .entry-dropdown-custom{border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(16,185,129,0.1)}.dropdown-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:280px;max-width:400px;background:white;border-radius:var(--radius-sm);box-shadow:0 10px 25px rgba(0,0,0,0.15);border:1px solid var(--border-color);z-index:1000;overflow:hidden;animation:fadeInUp 0.2s ease-out;max-height:300px;overflow-y:auto}.dropdown-option{padding:0.75rem 1rem;cursor:pointer;transition:background 0.2s ease;border-bottom:1px solid rgba(0,0,0,0.03);font-size:0.85rem;color:var(--text-color);white-space:normal;word-wrap:break-word;overflow-wrap:break-word}.dropdown-option:last-child{border-bottom:none}.dropdown-option:hover{background-color:var(--section-bg);color:var(--primary-color)}.dropdown-option.selected{background:rgba(107,127,215,0.1);color:var(--primary-color);font-weight:500}.common-phrases-section .phrase-chips-container{padding:1.5rem;background:var(--section-bg);border-radius:var(--radius)}.common-phrases-section .phrase-chips-header{display:flex;align-items:center;gap:0.5rem;font-size:1rem;font-weight:600;color:var(--text-color);margin-bottom:1rem}.common-phrases-section .phrase-chips-header i{color:var(--primary-color);font-size:1.1rem}.video-resources-container{display:flex;flex-direction:column;gap:2rem}.video-resources-empty-state{text-align:center;padding:3rem 2rem;background:var(--section-bg);border-radius:var(--radius);border:2px dashed var(--border-color)}.empty-state-icon{font-size:3.5rem;color:var(--primary-color);margin-bottom:1rem;opacity:0.6}.empty-state-title{font-size:1.25rem;font-weight:600;color:var(--text-color);margin-bottom:0.75rem}.empty-state-description{font-size:0.95rem;color:var(--text-light);line-height:1.6;margin-bottom:2rem;max-width:500px;margin-left:auto;margin-right:auto}.empty-state-features{display:flex;flex-direction:column;gap:1rem;max-width:400px;margin:0 auto}.empty-state-feature{display:flex;align-items:center;gap:0.75rem;padding:1rem;background:white;border-radius:var(--radius-sm);font-size:0.9rem;color:var(--text-color);box-shadow:0 2px 4px rgba(0,0,0,0.05)}.empty-state-feature i{font-size:1.5rem;flex-shrink:0}.empty-state-feature i.fa-bilibili{color:#fb7299}.empty-state-feature i.fa-robot{color:#6366f1}.video-resource-group{background:white;border-radius:var(--radius);padding:1.5rem;border:1px solid var(--border-color)}.video-resource-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:2px solid var(--border-color)}.video-resource-title{display:flex;align-items:center;gap:0.75rem;font-size:1.1rem;font-weight:600;color:var(--text-color)}.video-resource-title i{font-size:1.5rem}.video-resource-title .bilibili-icon{color:#fb7299}.video-resource-title .ai-icon{color:#6366f1}.video-resource-badge{padding:0.35rem 0.75rem;background:var(--section-bg);border-radius:16px;font-size:0.8rem;font-weight:500;color:var(--text-light)}.video-resource-description{font-size:0.9rem;color:var(--text-light);margin-bottom:1rem;line-height:1.6}.phrase-chips-list{display:flex;flex-wrap:wrap;gap:0.75rem;margin-bottom:1rem}.phrase-chip{display:inline-flex;align-items:center;gap:0.5rem;padding:0.75rem 1.25rem;background:white;border:2px solid var(--border-color);border-radius:24px;font-size:0.9rem;font-weight:500;color:var(--text-color);cursor:pointer;transition:var(--transition);box-shadow:0 2px 4px rgba(0,0,0,0.05)}.phrase-chip:hover{background:var(--primary-color);color:white;border-color:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px rgba(20,184,166,0.2)}.phrase-chip:active{transform:translateY(0)}.phrase-chip i{font-size:0.85rem}.phrase-chips-hint{display:flex;align-items:center;gap:0.5rem;font-size:0.85rem;color:var(--text-light);padding:0.75rem;background:rgba(255,255,255,0.5);border-radius:var(--radius-sm)}.phrase-chips-hint i{color:var(--primary-color)}.selected-phrase-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0;margin-bottom:1rem;border-bottom:1px solid var(--border-color)}.back-to-phrases-btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.5rem 1rem;background:white;border:1px solid var(--border-color);border-radius:20px;font-size:0.9rem;font-weight:500;color:var(--text-color);cursor:pointer;transition:var(--transition)}.back-to-phrases-btn:hover{background:var(--section-bg);border-color:var(--primary-color);color:var(--primary-color);transform:translateX(-2px)}.selected-phrase-info{display:flex;align-items:center;gap:0.5rem;font-size:0.95rem;color:var(--text-color)}.selected-phrase-info i{color:var(--primary-color)}.selected-phrase-info strong{color:var(--primary-color)}.bilibili-videos-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:1.5rem;margin-top:0.5rem}.bilibili-video-card{background:white;border:1px solid var(--border-color);border-radius:var(--radius-sm);overflow:hidden;transition:var(--transition);box-shadow:0 2px 8px rgba(0,0,0,0.05)}.bilibili-video-card:hover{transform:translateY(-2px);box-shadow:0 8px 16px rgba(0,0,0,0.1);border-color:#fb7299}.video-thumbnail{position:relative;width:100%;height:200px;overflow:hidden;background:#f5f5f5}.video-thumbnail iframe{width:100%;height:100%;border:none;border-radius:var(--radius-sm)}.video-play-overlay{display:none !important}.bilibili-video-card{background:white;border:1px solid var(--border-color);border-radius:var(--radius-sm);overflow:hidden;transition:var(--transition);box-shadow:0 2px 8px rgba(0,0,0,0.05)}.bilibili-video-card:hover{transform:translateY(-2px);box-shadow:0 8px 16px rgba(0,0,0,0.1);border-color:#fb7299}.video-thumbnail{position:relative;width:100%;height:180px;overflow:hidden;background:#f5f5f5}.video-thumbnail img{width:100%;height:100%;object-fit:cover;transition:transform 0.3s ease;border-radius:var(--radius-sm)}.video-thumbnail img[src="/placeholder-video.png"]{opacity:0.5;filter:grayscale(100%)}.video-image-fallback{position:absolute;top:0;left:0;right:0;bottom:0;background:var(--primary-color);color:white;display:flex;align-items:center;justify-content:center;font-size:2rem;border-radius:var(--radius-sm)}.bilibili-video-card:hover .video-thumbnail img{transform:scale(1.05)}.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.8);color:white;padding:2px 6px;border-radius:4px;font-size:0.8rem;font-weight:500}.video-play-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:rgba(251,114,153,0.9);color:white;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;opacity:0;transition:opacity 0.3s ease}.bilibili-video-card:hover .video-play-overlay{opacity:1}.video-info{padding:1rem}.video-title{font-size:1rem;font-weight:600;color:var(--text-color);line-height:1.4;margin-bottom:0.5rem;display:block;text-decoration:none;transition:color 0.3s ease}.video-title:hover{color:#fb7299}.video-meta{display:flex;gap:1rem;margin-bottom:0.75rem;font-size:0.85rem;color:var(--text-light)}.video-author,.video-date{display:flex;align-items:center;gap:0.25rem}.video-stats{display:flex;gap:1rem;font-size:0.85rem;color:var(--text-light)}.video-views,.video-likes{display:flex;align-items:center;gap:0.25rem}.video-description{font-size:0.85rem;color:var(--text-light);line-height:1.4;margin-top:0.5rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-matched-phrases{margin-top:0.75rem;padding-top:0.75rem;border-top:1px solid var(--border-color)}.matched-phrases-header{display:flex;align-items:center;gap:0.5rem;font-size:0.85rem;font-weight:600;color:var(--primary-color);margin-bottom:0.5rem}.matched-phrases-header i{font-size:0.75rem}.matched-phrases-list{display:flex;flex-wrap:wrap;gap:0.375rem}.matched-phrase-tag{background:rgba(107,127,215,0.1);color:var(--primary-color);padding:0.25rem 0.5rem;border-radius:12px;font-size:0.75rem;font-weight:500;border:1px solid rgba(107,127,215,0.2);transition:all 0.2s ease}.matched-phrase-tag:hover{background:rgba(107,127,215,0.15);transform:translateY(-1px);box-shadow:0 2px 4px rgba(107,127,215,0.15)}.no-matched-phrases{color:var(--text-lighter);font-size:0.75rem;font-style:italic;padding:0.25rem 0}@media (max-width:768px){.bilibili-videos-grid{grid-template-columns:1fr;gap:0.75rem}.video-thumbnail{height:150px}.video-info{padding:0.875rem}.video-title{font-size:0.95rem}.video-meta{gap:0.75rem;font-size:0.8rem}.video-stats{gap:0.75rem;font-size:0.8rem}}@media (max-width:480px){.video-thumbnail{height:120px}.video-info{padding:0.75rem}.video-title{font-size:0.9rem}.video-meta{flex-direction:column;gap:0.25rem}.video-stats{gap:0.75rem;font-size:0.8rem}}@media (max-width:480px){.video-thumbnail{height:120px}.video-info{padding:0.75rem}.video-title{font-size:0.9rem}.video-meta{flex-direction:column;gap:0.25rem}.video-stats{flex-direction:column;gap:0.25rem}.matched-phrases-list{gap:0.25rem}.matched-phrase-tag{font-size:0.7rem;padding:0.2rem 0.4rem}}@media (max-width:360px){.word-headword{font-size:1.35rem}.word-pronunciation{font-size:0.8rem;padding:0}.word-pronunciation .pronunciation{font-size:0.85rem}.word-pronunciation .pronunciation-audio-small{height:28px;max-width:200px}.word-frequency{font-size:0.75rem;padding:0.3rem 0.6rem}}.phrase-chip-wrapper{display:inline-flex;align-items:center;gap:0.5rem;background:white;border:2px solid var(--border-color);border-radius:24px;padding:0.25rem;transition:var(--transition)}.phrase-chip-wrapper:hover{border-color:var(--primary-color);box-shadow:0 4px 12px rgba(20,184,166,0.2);transform:translateY(-2px)}.phrase-chip-wrapper .phrase-chip{border:none;box-shadow:none;background:transparent;padding:0.5rem 1rem;margin:0;transform:none !important}.phrase-chip-wrapper .phrase-chip:hover{background:rgba(20,184,166,0.1);color:var(--primary-color)}.ai-video-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;border:none;background:rgba(99,102,241,0.1);color:#6366f1;cursor:pointer;transition:var(--transition);margin-right:0.25rem}.ai-video-btn:hover{background:#6366f1;color:white;transform:scale(1.1)}.ai-video-status{text-align:center;padding:2rem;background:#f8fafc;border-radius:var(--radius);border:1px dashed var(--border-color)}.ai-status-icon{font-size:2.5rem;color:#6366f1;margin-bottom:1rem;animation:pulse 2s infinite}.ai-status-text{font-size:1.1rem;font-weight:600;color:var(--text-color);margin-bottom:0.5rem}.ai-status-subtext{font-size:0.9rem;color:var(--text-light);margin-bottom:1.5rem}.ai-progress-container{width:100%;max-width:400px;height:8px;background:#e2e8f0;border-radius:4px;margin:0 auto;overflow:hidden}.ai-progress-bar{height:100%;background:linear-gradient(90deg,#6366f1,#818cf8);width:0%;transition:width 0.5s ease;border-radius:4px}.ai-video-player-container{width:100%;border-radius:var(--radius);overflow:hidden;background:black;box-shadow:var(--shadow)}.ai-video-player{width:100%;display:block}.conversation-script-container{margin:1.5rem 0;padding:1.5rem;background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border-radius:var(--radius);border:1px solid #bae6fd;box-shadow:0 2px 8px rgba(56,189,248,0.1)}.conversation-section{margin-bottom:1.5rem}.conversation-section:last-child{margin-bottom:0}.conversation-header{display:flex;align-items:center;gap:0.5rem;font-weight:600;font-size:1rem;color:#0369a1;margin-bottom:0.75rem}.conversation-header i{font-size:1.1rem}.conversation-scenario{padding:1rem;background:white;border-radius:var(--radius-sm);color:var(--text-color);line-height:1.6;font-size:0.95rem;box-shadow:0 1px 3px rgba(0,0,0,0.05)}.conversation-dialogue{background:white;border-radius:var(--radius-sm);padding:0.5rem;box-shadow:0 1px 3px rgba(0,0,0,0.05)}.dialogue-line{display:flex;gap:0.5rem;padding:0.75rem;border-bottom:1px solid #f1f5f9}.dialogue-line:last-child{border-bottom:none}.dialogue-character{font-weight:600;color:#0369a1;min-width:100px;flex-shrink:0}.dialogue-text{color:var(--text-color);line-height:1.5;flex:1}.conversation-explanation{padding:1rem;background:#fffbeb;border-radius:var(--radius-sm);border-left:4px solid #fbbf24;color:var(--text-color);line-height:1.6;font-size:0.95rem;box-shadow:0 1px 3px rgba(0,0,0,0.05)}.word-pos-badge{display:inline-flex;align-items:center;padding:0.2rem 0.65rem;background:#e3f2fd;color:#1565c0;border-radius:12px;font-size:0.8rem;font-weight:600;vertical-align:middle;white-space:nowrap;flex-shrink:0;letter-spacing:0.2px}.search-hint{margin-top:0.75rem;color:rgba(255,255,255,0.7);font-size:0.9rem;display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;justify-content:center}.search-hint-label{display:flex;align-items:center;gap:0.35rem;color:rgba(255,255,255,0.7);font-size:0.85rem;white-space:nowrap;flex-shrink:0}.search-hint-chips{display:flex;flex-wrap:wrap;gap:0.45rem;align-items:center;justify-content:center}.search-hint-chip{padding:0.25rem 0.75rem;background:rgba(255,255,255,0.15);border:1px solid rgba(255,255,255,0.3);border-radius:16px;font-size:0.82rem;font-weight:500;color:rgba(255,255,255,0.9);cursor:pointer;transition:var(--transition);-webkit-tap-highlight-color:transparent;font-family:inherit;flex-shrink:0;width:auto;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;line-height:1.4;backdrop-filter:blur(4px)}.search-hint-chip:hover{background:rgba(255,255,255,0.28);border-color:rgba(255,255,255,0.55);color:#fff;transform:translateY(-1px)}.search-hint-chip:active{transform:translateY(0)}.sense-examples .example-item{display:flex;align-items:flex-start;gap:0.4rem;color:var(--text-light);line-height:1.5;border:none;background:transparent;padding:0.3rem 0;margin-bottom:0.3rem;border-left:none;font-style:normal}.sense-examples .example-item:last-child{margin-bottom:0}.example-arrow{color:var(--primary-color);font-weight:700;font-style:normal;flex-shrink:0;margin-top:0.05em;font-size:0.95em}.sense-examples .example-item em{font-style:italic;color:var(--text-light);line-height:1.5}.etymology-lang-term{color:var(--secondary-color);font-weight:600;border-bottom:1px dotted var(--secondary-color);cursor:default}.skeleton-loading{padding:0.25rem 0;animation:skeletonFade 0.25s ease-in}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e4e4e4 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.4s infinite linear;border-radius:6px;display:block}.skeleton-line{height:15px;margin-bottom:10px}.skeleton-line:last-child{margin-bottom:0}.skeleton-chips{display:flex;flex-wrap:wrap;gap:8px;padding:0.25rem 0}.skeleton-chip{height:32px;width:76px;border-radius:20px;display:inline-block;flex-shrink:0}.skeleton-card{height:76px;margin-bottom:12px;border-radius:var(--radius-sm)}.skeleton-card:last-child{margin-bottom:0}@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}@keyframes skeletonFade{from{opacity:0}to{opacity:1}}.word-family-tags{display:flex;flex-wrap:wrap;gap:0.5rem;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:0.25rem}.word-family-tags::-webkit-scrollbar{display:none}@media (max-width:600px){.word-family-tags{flex-wrap:nowrap}}.word-tag{min-height:34px;display:inline-flex;align-items:center;cursor:pointer;white-space:nowrap}.synonym-group{display:flex;flex-direction:column;gap:0.6rem}.synonym-group-header{font-weight:700;font-size:0.78rem;color:#1565c0;display:flex;align-items:center;gap:0.4rem;padding-bottom:0.4rem;border-bottom:2px solid #e3f2fd;text-transform:uppercase;letter-spacing:0.6px}.synonym-group-header.antonym-header{color:#c62828;border-bottom-color:#ffebee}.synonym-tag,.antonym-tag{min-height:34px;display:inline-flex;align-items:center}.video-resources-empty-state{text-align:center;padding:2.5rem 1.5rem;background:var(--section-bg);border-radius:var(--radius);border:2px dashed var(--border-color)}.video-resources-empty-state .empty-state-icon{font-size:2.75rem;color:var(--primary-color);margin-bottom:0.75rem;opacity:0.65}.video-resources-empty-state .empty-state-title{font-size:1.1rem;font-weight:600;color:var(--text-color);margin-bottom:0.5rem}.video-resources-empty-state .empty-state-description{font-size:0.9rem;color:var(--text-light);line-height:1.6;max-width:320px;margin:0 auto}.tab-link:hover,.tab-link.active{background:var(--primary-color);color:white;border-color:var(--primary-color);box-shadow:0 3px 0 var(--primary-dark)}.empty-state{text-align:center;padding:5rem 2rem 4rem;color:var(--text-light)}.empty-state-content{max-width:420px;margin:0 auto}.empty-state-icon-wrap{width:72px;height:72px;border-radius:50%;background:var(--section-bg);border:2px solid var(--border-color);display:inline-flex;align-items:center;justify-content:center;margin-bottom:1.5rem;font-size:1.75rem;color:var(--primary-color)}.empty-state h3{font-size:1.35rem;font-weight:600;color:var(--text-color);margin-bottom:0.65rem}.empty-state p{font-size:0.95rem;line-height:1.65;color:var(--text-light);margin-bottom:1.75rem}.empty-state-features{display:flex;flex-wrap:wrap;gap:0.6rem;justify-content:center}.empty-feature-pill{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;padding:0.9rem 0.9rem;background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:20px;font-size:1rem;font-weight:500;color:var(--text-light);white-space:nowrap;line-height:1;vertical-align:middle}.empty-feature-pill i{display:inline-flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:0.8rem;line-height:1;flex-shrink:0}.bilibili-empty-state,.bilibili-error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 2rem;border-radius:var(--radius);text-align:center;gap:0.5rem}.bilibili-empty-state{background:var(--section-bg);border:1.5px dashed var(--border-color)}.bilibili-empty-state-icon{font-size:2.8rem;color:#f9a8c4;margin-bottom:0.5rem;line-height:1;opacity:0.75}.bilibili-empty-state-title{font-size:1rem;font-weight:500;color:var(--text-light)}.bilibili-empty-state-desc{font-size:0.85rem;color:var(--text-lighter);max-width:340px;line-height:1.6}.bilibili-error-state{background:var(--section-bg);border:1.5px dashed var(--border-color)}.bilibili-error-state-icon{font-size:2.5rem;color:var(--text-lighter);margin-bottom:0.5rem;line-height:1}.bilibili-error-state-title{font-size:1rem;font-weight:500;color:var(--text-light)}.bilibili-error-state-desc{font-size:0.85rem;color:var(--text-lighter);max-width:340px;line-height:1.6}.theme-picker-panel{position:fixed;bottom:calc(2rem + 60px + 0.75rem + 50px + 0.75rem);right:2rem;background:white;border-radius:var(--radius);box-shadow:0 8px 32px rgba(0,0,0,0.15),0 2px 8px rgba(0,0,0,0.08);padding:0.875rem;width:294px;box-sizing:border-box;opacity:0;transform:translateY(8px) scale(0.97);pointer-events:none;transition:opacity 0.18s ease,transform 0.18s ease;z-index:1000}.theme-picker-panel.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}.theme-picker-title{font-size:0.7rem;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:var(--text-lighter);margin-bottom:0.75rem}.theme-swatches{display:grid;grid-template-columns:repeat(8,1fr);gap:6px}.theme-swatch{width:100%;aspect-ratio:1;border-radius:50%;border:2.5px solid transparent;cursor:pointer;background:linear-gradient(135deg,var(--s1) 50%,var(--s2) 50%);transition:transform 0.15s ease,border-color 0.15s ease,box-shadow 0.15s ease;position:relative}.theme-swatch:hover{transform:scale(1.18);box-shadow:0 3px 10px rgba(0,0,0,0.18)}.theme-swatch.active{border-color:var(--text-color);box-shadow:0 0 0 3px rgba(0,0,0,0.08);transform:scale(1.1)}.theme-swatch.active::after{content:'';position:absolute;inset:0;border-radius:50%;border:2px solid white}@media (max-width:768px){.theme-picker-panel{right:1rem;bottom:calc(1rem + 56px + 0.75rem + 46px + 0.75rem);width:270px;padding:0.75rem}}.confusion-chips{display:flex;flex-wrap:wrap;gap:0.5rem;margin-top:0.75rem}.confusion-chip{display:inline-flex;align-items:center;gap:0.45rem;padding:0.5rem 1rem;background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:20px;font-size:0.9rem;font-weight:600;color:var(--text-color);cursor:pointer;transition:var(--transition)}.confusion-chip:hover{border-color:#f59e0b;color:#d97706;background:#fffbf0;transform:translateY(-2px);box-shadow:0 4px 12px rgba(245,158,11,0.15)}.confusion-chip.active{background:#f59e0b;border-color:#f59e0b;color:#fff;box-shadow:0 4px 14px rgba(245,158,11,0.35);transform:translateY(-1px)}.confusion-chip-icon{font-size:0.65rem;opacity:0.6;transition:var(--transition)}.confusion-chip.active .confusion-chip-icon,.confusion-chip:hover .confusion-chip-icon{opacity:1;transform:scale(1.2)}.confusion-detail-container{margin-top:1.25rem}.wcd-loading{display:flex;align-items:center;justify-content:center;gap:0.75rem;padding:2.5rem 1rem;background:var(--section-bg);border-radius:var(--radius);color:var(--text-light);font-size:0.9rem}@keyframes wcdSlideIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.wcd-wrap{display:flex;flex-direction:column;gap:0}.wcd-meta-bar{display:flex;align-items:center;flex-wrap:wrap;gap:0.5rem;margin-bottom:1rem}.wcd-type-pill{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.78rem;font-weight:600;padding:0.3rem 0.75rem;border-radius:20px;background:var(--section-bg);color:var(--text-light);letter-spacing:0.01em}.wcd-diff-pill{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.78rem;font-weight:700;padding:0.3rem 0.75rem;border-radius:20px;border:1.5px solid}.wcd-word-card{background:var(--card-bg);border-radius:var(--radius);border:1.5px solid var(--border-color);box-shadow:var(--shadow);overflow:hidden;animation:wcdSlideIn 0.4s cubic-bezier(0.22,1,0.36,1) both}.wcd-card-a{border-top:4px solid var(--primary-color);animation-delay:0.05s}.wcd-card-b{border-top:4px solid var(--secondary-color);animation-delay:0.15s}.wcd-card-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.6rem;padding:1.1rem 1.25rem 0.9rem;border-bottom:1px solid var(--border-color);background:var(--section-bg)}.wcd-card-a .wcd-card-header{background:color-mix(in srgb,var(--primary-color) 6%,var(--card-bg))}.wcd-card-b .wcd-card-header{background:color-mix(in srgb,var(--secondary-color) 6%,var(--card-bg))}.wcd-card-word{font-size:1.35rem;font-weight:800;letter-spacing:-0.02em;color:var(--text-color)}.wcd-card-a .wcd-card-word{color:var(--primary-dark)}.wcd-card-b .wcd-card-word{color:var(--secondary-color)}.wcd-card-attrs{display:flex;flex-wrap:wrap;gap:0.4rem}.wcd-attr-pill{display:inline-flex;align-items:center;gap:0.3rem;font-size:0.75rem;font-weight:700;padding:0.28rem 0.65rem;border-radius:10px;text-transform:lowercase;letter-spacing:0.01em}.wcd-attr-same{background:var(--section-bg);color:var(--text-lighter)}.wcd-attr-diff{background:color-mix(in srgb,var(--primary-color) 15%,transparent);color:var(--primary-dark);box-shadow:0 0 0 1.5px color-mix(in srgb,var(--primary-color) 30%,transparent)}.wcd-card-b .wcd-attr-diff{background:color-mix(in srgb,var(--secondary-color) 15%,transparent);color:var(--secondary-color);box-shadow:0 0 0 1.5px color-mix(in srgb,var(--secondary-color) 30%,transparent)}.wcd-card-meaning{display:flex;align-items:flex-start;gap:0.75rem;padding:1.1rem 1.25rem 0.85rem;border-bottom:1px solid var(--border-color);font-size:1rem;font-weight:500;line-height:1.6;color:var(--text-color)}.wcd-field-icon{flex-shrink:0;margin-top:0.2rem;font-size:0.85rem;color:var(--text-lighter);width:1rem;text-align:center}.wcd-card-example{display:flex;align-items:flex-start;gap:0.75rem;padding:0.9rem 1.25rem;border-bottom:1px solid var(--border-color);font-size:0.95rem;line-height:1.65;color:var(--text-light);font-style:italic}.wcd-card-a .wcd-card-example{background:color-mix(in srgb,var(--primary-color) 4%,var(--card-bg))}.wcd-card-b .wcd-card-example{background:color-mix(in srgb,var(--secondary-color) 4%,var(--card-bg))}.wcd-card-a .wcd-card-example .wcd-field-icon{color:var(--primary-color)}.wcd-card-b .wcd-card-example .wcd-field-icon{color:var(--secondary-color)}.wcd-card-section{padding:0.85rem 1.25rem;border-bottom:1px solid var(--border-color);display:flex;flex-direction:column;gap:0.55rem}.wcd-card-section:last-child{border-bottom:none}.wcd-card-section-label{font-size:0.72rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-lighter);display:flex;align-items:center;gap:0.35rem}.wcd-card-chips{display:flex;flex-wrap:wrap;gap:0.4rem}.wcd-colloc-chip{font-size:0.83rem;padding:0.3rem 0.7rem;border-radius:8px;background:var(--section-bg);color:var(--text-color);border:1px solid var(--border-color);font-style:italic}.wcd-domain-chip{font-size:0.75rem;padding:0.2rem 0.6rem;border-radius:6px;background:var(--section-bg);color:var(--text-light);text-transform:capitalize}.wcd-card-grammar{display:flex;align-items:flex-start;gap:0.75rem;padding:0.85rem 1.25rem;font-size:0.83rem;color:var(--text-lighter);line-height:1.55;background:var(--section-bg);border-top:1px solid var(--border-color)}.wcd-bridge{display:flex;align-items:center;gap:0.75rem;padding:0.5rem 0;animation:wcdSlideIn 0.35s ease both;animation-delay:0.1s}.wcd-bridge-line{flex:1;height:1.5px;background:linear-gradient(90deg,transparent,var(--border-color))}.wcd-bridge:nth-child(2) .wcd-bridge-line:last-child{background:linear-gradient(90deg,var(--border-color),transparent)}.wcd-bridge-badge{display:flex;align-items:center;gap:0.45rem;padding:0.4rem 0.9rem;background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:20px;box-shadow:var(--shadow);white-space:nowrap}.wcd-bridge-word-a{font-size:0.8rem;font-weight:700;color:var(--primary-color)}.wcd-bridge-word-b{font-size:0.8rem;font-weight:700;color:var(--secondary-color)}.wcd-bridge-vs{font-size:0.65rem;font-weight:800;letter-spacing:0.08em;color:var(--text-lighter);background:var(--section-bg);padding:0.1rem 0.4rem;border-radius:4px}.wcd-insights{display:flex;flex-direction:column;gap:0.5rem;margin-top:1rem}.wcd-insight{display:flex;align-items:flex-start;gap:0.9rem;padding:0.9rem 1.1rem;border-radius:var(--radius-sm);background:var(--card-bg);border:1px solid var(--border-color);animation:wcdSlideIn 0.4s ease both}.wcd-insight-rule{animation-delay:0.2s}.wcd-insight-diff{animation-delay:0.25s}.wcd-insight-overlap{animation-delay:0.3s}.wcd-insight-reason{animation-delay:0.35s}.wcd-insight-icon{flex-shrink:0;width:1.75rem;height:1.75rem;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:0.8rem;margin-top:0.05rem}.wcd-insight-rule .wcd-insight-icon{background:color-mix(in srgb,var(--primary-color) 14%,transparent);color:var(--primary-color)}.wcd-insight-diff .wcd-insight-icon{background:color-mix(in srgb,#ef4444 12%,transparent);color:#ef4444}.wcd-insight-overlap .wcd-insight-icon{background:color-mix(in srgb,var(--secondary-color) 14%,transparent);color:var(--secondary-color)}.wcd-insight-reason .wcd-insight-icon{background:color-mix(in srgb,#f59e0b 12%,transparent);color:#d97706}.wcd-insight-body{display:flex;flex-direction:column;gap:0.2rem;flex:1}.wcd-insight-label{font-size:0.7rem;font-weight:800;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-lighter)}.wcd-insight-text{font-size:0.9rem;line-height:1.55;color:var(--text-color)}.wcd-mnemonic{display:flex;align-items:flex-start;gap:1rem;padding:1.1rem 1.25rem;margin-top:1rem;background:color-mix(in srgb,var(--primary-color) 8%,var(--card-bg));border:1.5px solid color-mix(in srgb,var(--primary-color) 25%,transparent);border-radius:var(--radius);animation:wcdSlideIn 0.4s ease both;animation-delay:0.4s}.wcd-mnemonic-icon-wrap{flex-shrink:0;width:2.25rem;height:2.25rem;border-radius:10px;background:color-mix(in srgb,var(--primary-color) 18%,transparent);color:var(--primary-color);display:flex;align-items:center;justify-content:center;font-size:1rem}.wcd-mnemonic-body{display:flex;flex-direction:column;gap:0.2rem}.wcd-mnemonic-label{font-size:0.7rem;font-weight:800;text-transform:uppercase;letter-spacing:0.06em;color:var(--primary-color);opacity:0.7}.wcd-mnemonic-text{font-size:0.95rem;font-weight:600;line-height:1.5;color:var(--primary-dark)}.wcd-regional{display:flex;align-items:flex-start;gap:0.65rem;padding:0.75rem 1rem;margin-top:0.5rem;background:var(--section-bg);border-radius:var(--radius-sm);font-size:0.85rem;color:var(--text-light);line-height:1.5;animation:wcdSlideIn 0.4s ease both;animation-delay:0.45s}.wcd-regional i{margin-top:0.15rem;flex-shrink:0;color:var(--text-lighter)}@keyframes wcdShimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}.wcd-skeleton{background:linear-gradient(90deg,var(--section-bg) 25%,var(--border-color) 50%,var(--section-bg) 75%);background-size:200% 100%;animation:wcdShimmer 1.4s ease infinite;border-radius:var(--radius-sm)}.wcd-skeleton-meta{height:2.5rem;margin-bottom:1rem;border-radius:20px;width:60%}.wcd-skeleton-card{height:10rem;border-radius:var(--radius)}.wcd-card-example-skeleton{height:3.5rem;margin:0 1.25rem 0.85rem}.wcd-card-usage-note{display:flex;align-items:flex-start;gap:0.75rem;padding:0.75rem 1.25rem;border-bottom:1px solid var(--border-color);font-size:0.85rem;line-height:1.55;color:var(--text-light);background:var(--section-bg)}.wcd-card-a .wcd-card-usage-note .wcd-field-icon{color:var(--primary-color)}.wcd-card-b .wcd-card-usage-note .wcd-field-icon{color:var(--secondary-color)}.wcd-slot-meta,.wcd-slot-card-a,.wcd-slot-card-b{animation:wcdSlideIn 0.35s ease both}.wcd-section-error{display:flex;align-items:center;gap:0.6rem;padding:0.85rem 1.1rem;background:var(--section-bg);border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:0.88rem;color:var(--text-light)}.wcd-section-error i{flex-shrink:0;color:#ef4444}.wcd-retry-btn{display:inline-flex;align-items:center;gap:0.35rem;margin-left:auto;padding:0.35rem 0.75rem;background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:8px;font-size:0.8rem;font-weight:600;color:var(--primary-color);cursor:pointer;transition:var(--transition)}.wcd-retry-btn:hover{background:color-mix(in srgb,var(--primary-color) 8%,var(--card-bg));border-color:var(--primary-color)}.wcd-examples-retry-wrap{padding:0.75rem 1.25rem;border-top:1px solid var(--border-color);display:flex;justify-content:center}.wcd-examples-retry{margin-left:0}@media (max-width:480px){.confusion-chips{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:0.25rem}.confusion-chips::-webkit-scrollbar{display:none}.confusion-chip{flex-shrink:0}.wcd-card-header{padding:1rem}.wcd-card-word{font-size:1.2rem}.wcd-card-meaning,.wcd-card-example,.wcd-card-section,.wcd-card-grammar{padding-left:1rem;padding-right:1rem}.wcd-insight{padding:0.8rem 0.9rem}.wcd-mnemonic{padding:1rem}}.wcd-b-wrap{display:flex;flex-direction:column;gap:0.85rem}.wcd-b-toolbar{display:flex;align-items:center;justify-content:space-between;gap:0.75rem;padding:0.7rem 0.8rem;background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius-sm);box-shadow:var(--shadow)}.wcd-b-title{display:inline-flex;align-items:center;min-width:0;gap:0.45rem;font-size:0.95rem;font-weight:800;color:var(--text-color)}.wcd-b-title-word{overflow-wrap:anywhere}.wcd-b-title-word-a{color:var(--primary-dark)}.wcd-b-title-word-b{color:var(--secondary-color)}.wcd-b-title-vs{flex-shrink:0;padding:0.12rem 0.36rem;border-radius:6px;background:var(--section-bg);color:var(--text-lighter);font-size:0.64rem;font-weight:800;text-transform:uppercase}.wcd-b-export-actions{display:inline-grid;grid-template-columns:repeat(2,2rem);gap:0.35rem;flex-shrink:0}.wcd-b-export-btn{width:2rem;height:2rem;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border-color);border-radius:8px;background:var(--card-bg);color:var(--text-light);cursor:pointer;transition:var(--transition)}.wcd-b-export-btn:hover:not(:disabled),.wcd-b-export-btn:focus-visible:not(:disabled){color:var(--primary-dark);border-color:var(--primary-color);background:var(--section-bg);transform:translateY(-1px)}.wcd-b-export-btn:disabled{opacity:0.45;cursor:not-allowed}.wcd-b-export-status{min-height:0;font-size:0.78rem;line-height:1.35;color:var(--text-light)}.wcd-b-export-status.is-loading,.wcd-b-export-status.is-success,.wcd-b-export-status.is-error{min-height:1.1rem}.wcd-b-export-status.is-success{color:#059669}.wcd-b-export-status.is-error{color:#dc2626}.wcd-b-export-surface{display:flex;flex-direction:column;gap:0.85rem}.wcd-b-quick-rule{display:flex;align-items:flex-start;gap:0.65rem;padding:0.8rem 0.95rem;background:#fff8db;border:1px solid #fde68a;border-radius:var(--radius-sm);animation:wcdSlideIn 0.35s ease both}.wcd-b-quick-rule-icon{flex-shrink:0;width:1.65rem;height:1.65rem;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:#fef3c7;font-size:0.82rem;color:#d97706}.wcd-b-quick-rule-label{font-size:0.65rem;font-weight:800;text-transform:uppercase;letter-spacing:0.08em;color:#92400e;margin-bottom:3px}.wcd-b-quick-rule-text{font-size:0.88rem;line-height:1.5;color:#78350f}.wcd-b-tags{display:flex;flex-wrap:wrap;align-items:center;gap:0.45rem;animation:wcdSlideIn 0.35s ease both;animation-delay:0.05s;margin:0}.wcd-b-type-pill{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.78rem;font-weight:600;padding:0.3rem 0.65rem;border-radius:999px;background:var(--section-bg);color:var(--text-light)}.wcd-b-diff-pill{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.78rem;font-weight:700;padding:0.3rem 0.65rem;border-radius:999px;border:1.5px solid}.wcd-b-cards-row{display:grid;grid-template-columns:minmax(0,1fr) 2.65rem minmax(0,1fr);align-items:stretch;animation:wcdSlideIn 0.4s ease both;animation-delay:0.1s}.wcd-b-vs-divider{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}.wcd-b-vs-divider::before{content:'';position:absolute;top:0;bottom:0;left:50%;width:1px;background:var(--border-color)}.wcd-b-vs-badge{background:var(--card-bg);border:1.5px solid var(--border-color);border-radius:999px;padding:0.32rem 0.5rem;font-size:0.62rem;font-weight:800;color:var(--text-lighter);letter-spacing:0.1em;position:relative;z-index:1}.wcd-b-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:var(--radius);overflow:hidden;box-shadow:0 10px 28px rgba(15,23,42,0.06);display:flex;flex-direction:column}.wcd-b-card-a{border-top:4px solid var(--primary-color)}.wcd-b-card-b{border-top:4px solid var(--secondary-color)}.wcd-b-card-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:0.5rem;padding:0.95rem 1rem 0.85rem;border-bottom:1px solid var(--border-color);background:var(--section-bg)}.wcd-b-card-a .wcd-b-card-head{background:#f7fffc;background:color-mix(in srgb,var(--primary-color) 7%,var(--card-bg))}.wcd-b-card-b .wcd-b-card-head{background:#f8fffb;background:color-mix(in srgb,var(--secondary-color) 7%,var(--card-bg))}.wcd-b-card-word{font-size:1.24rem;font-weight:800;letter-spacing:0;overflow-wrap:anywhere}.wcd-b-card-a .wcd-b-card-word{color:var(--primary-dark)}.wcd-b-card-b .wcd-b-card-word{color:var(--secondary-color)}.wcd-b-attr-pill{display:inline-flex;align-items:center;gap:0.3rem;font-size:0.7rem;font-weight:700;padding:0.28rem 0.62rem;border-radius:999px;text-transform:lowercase}.wcd-b-attr-same{background:var(--section-bg);color:var(--text-lighter)}.wcd-b-attr-diff{background:rgba(20,184,166,0.12);background:color-mix(in srgb,var(--primary-color) 14%,transparent);color:var(--primary-dark);box-shadow:0 0 0 1.5px rgba(20,184,166,0.22);box-shadow:0 0 0 1.5px color-mix(in srgb,var(--primary-color) 28%,transparent)}.wcd-b-card-b .wcd-b-attr-diff{background:rgba(16,185,129,0.12);background:color-mix(in srgb,var(--secondary-color) 14%,transparent);color:var(--secondary-color);box-shadow:0 0 0 1.5px rgba(16,185,129,0.22);box-shadow:0 0 0 1.5px color-mix(in srgb,var(--secondary-color) 28%,transparent)}.wcd-b-card-body{padding:1rem;flex:1;display:flex;flex-direction:column;gap:0.9rem}.wcd-b-card-meaning{display:flex;flex-direction:column;gap:0.35rem}.wcd-b-card-kicker,.wcd-b-note-label{font-size:0.63rem;font-weight:800;text-transform:uppercase;letter-spacing:0.08em;color:var(--text-lighter)}.wcd-b-card-meaning-text{font-size:1rem;line-height:1.62;color:var(--text-color);font-weight:700}.wcd-b-insight-panel{position:relative;display:grid;gap:0.72rem;padding:0.72rem;border-radius:14px;overflow:hidden;background:var(--section-bg);border:1px solid var(--border-color);box-shadow:inset 0 1px 0 rgba(255,255,255,0.68)}.wcd-b-insight-panel::before{content:'';position:absolute;inset:0;pointer-events:none;opacity:0.7;background:radial-gradient(circle at 18% 8%,rgba(255,255,255,0.82),transparent 32%),linear-gradient(135deg,rgba(255,255,255,0.34),transparent 42%)}.wcd-b-insight-panel > *{position:relative;z-index:1}.wcd-b-card-a .wcd-b-insight-panel{background:rgba(20,184,166,0.07);background:linear-gradient(160deg,color-mix(in srgb,var(--primary-color) 10%,var(--card-bg)) 0%,var(--card-bg) 48%,color-mix(in srgb,var(--primary-color) 7%,var(--section-bg)) 100%);border-color:rgba(20,184,166,0.22);border-color:color-mix(in srgb,var(--primary-color) 26%,var(--border-color));box-shadow:inset 0 1px 0 rgba(255,255,255,0.7),0 14px 32px color-mix(in srgb,var(--primary-color) 12%,transparent)}.wcd-b-card-b .wcd-b-insight-panel{background:rgba(16,185,129,0.07);background:linear-gradient(160deg,color-mix(in srgb,var(--secondary-color) 10%,var(--card-bg)) 0%,var(--card-bg) 48%,color-mix(in srgb,var(--secondary-color) 7%,var(--section-bg)) 100%);border-color:rgba(16,185,129,0.22);border-color:color-mix(in srgb,var(--secondary-color) 26%,var(--border-color));box-shadow:inset 0 1px 0 rgba(255,255,255,0.7),0 14px 32px color-mix(in srgb,var(--secondary-color) 12%,transparent)}.wcd-b-card-example{display:grid;grid-template-columns:1.6rem minmax(0,1fr);align-items:start;gap:0.55rem;font-size:0.92rem;color:var(--text-light);line-height:1.65;padding:0.85rem 0.9rem;border-radius:12px;background:var(--card-bg);border:1px solid var(--border-color);box-shadow:0 8px 18px rgba(15,23,42,0.04)}.wcd-b-card-example em{font-style:italic;color:var(--text-light)}.wcd-b-quote-icon{width:1.5rem;height:1.5rem;position:relative;display:block;align-self:start;margin-top:0.16rem;border-radius:999px;font-size:0.7rem;line-height:1;opacity:1;background:var(--section-bg);color:var(--text-lighter)}.wcd-b-quote-icon::before{position:absolute;top:50%;left:50%;width:1em;transform:translate(-50%,-50%);display:block;line-height:1;text-align:center}.wcd-b-card-a .wcd-b-card-example{background:rgba(255,255,255,0.8);background:linear-gradient(135deg,color-mix(in srgb,var(--primary-color) 6%,var(--card-bg)),var(--card-bg));border-color:rgba(20,184,166,0.18);border-color:color-mix(in srgb,var(--primary-color) 22%,var(--border-color));color:var(--text-light)}.wcd-b-card-a .wcd-b-quote-icon{background:color-mix(in srgb,var(--primary-color) 14%,var(--card-bg));color:var(--primary-dark)}.wcd-b-card-b .wcd-b-card-example{background:rgba(255,255,255,0.8);background:linear-gradient(135deg,color-mix(in srgb,var(--secondary-color) 6%,var(--card-bg)),var(--card-bg));border-color:rgba(16,185,129,0.18);border-color:color-mix(in srgb,var(--secondary-color) 22%,var(--border-color));color:var(--text-light)}.wcd-b-card-b .wcd-b-quote-icon{background:color-mix(in srgb,var(--secondary-color) 14%,var(--card-bg));color:var(--secondary-color)}.wcd-b-card-example-skeleton{height:40px;border-radius:6px}.wcd-b-note-stack{display:grid;gap:0.55rem}.wcd-b-card-note{display:flex;align-items:flex-start;gap:0.65rem;padding:0.78rem 0.82rem;border-radius:12px;background:rgba(255,255,255,0.64);background:color-mix(in srgb,var(--card-bg) 76%,var(--section-bg));border:1px solid color-mix(in srgb,var(--border-color) 72%,transparent);box-shadow:0 8px 18px rgba(15,23,42,0.035)}.wcd-b-note-icon{flex-shrink:0;width:1.35rem;height:1.35rem;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;background:var(--card-bg);color:var(--text-lighter);font-size:0.72rem;box-shadow:0 0 0 1px var(--border-color)}.wcd-b-card-a .wcd-b-card-note{border-color:color-mix(in srgb,var(--primary-color) 18%,var(--border-color))}.wcd-b-card-a .wcd-b-note-icon{background:color-mix(in srgb,var(--primary-color) 13%,var(--card-bg));color:var(--primary-dark);box-shadow:0 0 0 1px color-mix(in srgb,var(--primary-color) 25%,transparent)}.wcd-b-card-b .wcd-b-card-note{border-color:color-mix(in srgb,var(--secondary-color) 18%,var(--border-color))}.wcd-b-card-b .wcd-b-note-icon{background:color-mix(in srgb,var(--secondary-color) 13%,var(--card-bg));color:var(--secondary-color);box-shadow:0 0 0 1px color-mix(in srgb,var(--secondary-color) 25%,transparent)}.wcd-b-note-copy{display:flex;flex-direction:column;gap:0.16rem;min-width:0}.wcd-b-note-text{font-size:0.82rem;line-height:1.55;color:var(--text-light)}.wcd-b-card-section{display:flex;flex-direction:column;gap:0.5rem;padding-top:0.15rem}.wcd-b-card-section-label{font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-lighter);display:flex;align-items:center;gap:4px}.wcd-b-card-chips{display:flex;flex-wrap:wrap;gap:0.4rem}.wcd-b-colloc-chip{font-size:0.8rem;padding:0.28rem 0.62rem;border-radius:999px;background:var(--section-bg);color:var(--text-color);border:1px solid var(--border-color);font-style:italic}.wcd-b-key-diff{display:flex;align-items:flex-start;gap:0.65rem;padding:0.78rem 0.95rem;margin-top:0.45rem;background:#fff7f7;background:color-mix(in srgb,#ef4444 5%,var(--card-bg));border:1px solid rgba(239,68,68,0.18);border:1px solid color-mix(in srgb,#ef4444 20%,transparent);border-radius:var(--radius-sm);animation:wcdSlideIn 0.4s ease both;animation-delay:0.25s}.wcd-b-key-diff-icon{flex-shrink:0;width:1.65rem;height:1.65rem;border-radius:7px;background:rgba(239,68,68,0.1);background:color-mix(in srgb,#ef4444 12%,transparent);color:#ef4444;display:flex;align-items:center;justify-content:center;font-size:0.78rem}.wcd-b-key-diff-label{font-size:0.65rem;font-weight:800;text-transform:uppercase;letter-spacing:0.06em;color:#b91c1c;margin-bottom:2px}.wcd-b-key-diff-text{font-size:0.86rem;line-height:1.5;color:var(--text-color)}.wcd-print-frame{position:fixed;width:0;height:0;right:0;bottom:0;border:0;visibility:hidden}@media (max-width:640px){.wcd-b-toolbar{align-items:flex-start;padding:0.7rem}.wcd-b-title{flex-wrap:wrap;font-size:0.9rem}.wcd-b-cards-row{grid-template-columns:1fr;gap:0}.wcd-b-vs-divider{flex-direction:row;height:32px;padding:0}.wcd-b-vs-divider::before{top:50%;bottom:auto;left:0;right:0;width:100%;height:1px}.wcd-b-card-a{border-radius:var(--radius) var(--radius) 0 0;border-bottom:none}.wcd-b-card-b{border-radius:0 0 var(--radius) var(--radius);border-top:none}}.confusion-section{border-left:0;border:1px solid color-mix(in srgb,var(--primary-color) 16%,var(--border-color));background:linear-gradient(135deg,color-mix(in srgb,var(--primary-color) 7%,#fff),#fff 42%,color-mix(in srgb,var(--accent-color,#22c55e) 7%,#fff)),var(--card-bg);box-shadow:0 16px 38px rgba(15,23,42,0.08)}.confusion-chips{gap:0.6rem}.confusion-chip{position:relative;overflow:hidden;border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,0.95),color-mix(in srgb,var(--primary-color) 7%,#fff)),var(--card-bg);box-shadow:0 10px 22px rgba(15,23,42,0.06)}.confusion-chip::before{content:'';position:absolute;inset:0 auto 0 0;width:4px;background:linear-gradient(var(--primary-color),var(--secondary-color));opacity:0;transition:opacity 0.2s ease}.confusion-chip:hover::before,.confusion-chip.active::before{opacity:1}.wcd-b-wrap{--wcd-lab-bg:#101322;--wcd-lab-panel:rgba(255,255,255,0.94);--wcd-lab-line:rgba(255,255,255,0.2);--wcd-lab-glow-a:color-mix(in srgb,var(--primary-color) 34%,transparent);--wcd-lab-glow-b:color-mix(in srgb,var(--secondary-color) 34%,transparent);gap:1rem;padding:clamp(0.85rem,2vw,1.2rem);border-radius:18px;border:1px solid color-mix(in srgb,var(--primary-color) 22%,transparent);background:radial-gradient(circle at 14% 10%,var(--wcd-lab-glow-a),transparent 28%),radial-gradient(circle at 86% 16%,var(--wcd-lab-glow-b),transparent 30%),linear-gradient(135deg,#101322,#172033 46%,#0f172a);box-shadow:0 28px 70px rgba(15,23,42,0.24),inset 0 1px 0 rgba(255,255,255,0.12);color:#f8fafc}.wcd-b-toolbar{padding:0;border:0;border-radius:0;background:transparent;box-shadow:none}.wcd-b-title{flex-direction:column;align-items:flex-start;gap:0.32rem;color:#f8fafc}.wcd-b-title-kicker{display:inline-flex;align-items:center;gap:0.42rem;min-height:26px;padding:0.2rem 0.58rem;border:1px solid rgba(255,255,255,0.18);border-radius:999px;background:rgba(255,255,255,0.08);color:rgba(248,250,252,0.78);font-size:0.68rem;font-weight:800;letter-spacing:0.12em;text-transform:uppercase}.wcd-b-title-main{display:inline-flex;align-items:center;flex-wrap:wrap;gap:0.48rem;font-size:clamp(1.05rem,2vw,1.42rem);line-height:1.1}.wcd-b-title-word-a{color:#fff}.wcd-b-title-word-b{color:color-mix(in srgb,var(--secondary-color) 52%,#fff)}.wcd-b-title-vs{padding:0.22rem 0.5rem;border:1px solid rgba(255,255,255,0.18);background:rgba(255,255,255,0.1);color:rgba(248,250,252,0.72)}.wcd-b-export-actions{grid-template-columns:repeat(2,2.35rem);gap:0.45rem;align-self:flex-start}.wcd-b-export-btn{width:2.35rem;height:2.35rem;border-radius:12px;border-color:rgba(255,255,255,0.18);background:rgba(255,255,255,0.09);color:rgba(255,255,255,0.84);box-shadow:inset 0 1px 0 rgba(255,255,255,0.12)}.wcd-b-export-btn:hover:not(:disabled),.wcd-b-export-btn:focus-visible:not(:disabled){color:#101322;border-color:transparent;background:linear-gradient(135deg,#fde68a,var(--accent-color,#22c55e));box-shadow:0 14px 28px rgba(34,197,94,0.28)}.wcd-b-export-status{color:rgba(248,250,252,0.72)}.wcd-b-export-status.is-success{color:#bbf7d0}.wcd-b-export-status.is-error{color:#fecaca}.wcd-b-export-surface{gap:1rem}.wcd-b-meta-panel{display:grid;grid-template-columns:minmax(0,0.8fr) minmax(220px,1fr) 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!important}.wcd-b-quick-rule{background:linear-gradient(135deg,rgba(250,204,21,0.18),rgba(255,255,255,0.08));border-color:rgba(250,204,21,0.25)}.wcd-b-quick-rule-icon,.wcd-b-key-diff-icon{width:2rem;height:2rem;border-radius:11px}.wcd-b-quick-rule-label,.wcd-b-key-diff-label{color:rgba(255,255,255,0.62)}.wcd-b-quick-rule-text,.wcd-b-key-diff-text{color:#f8fafc}.wcd-b-key-diff{background:linear-gradient(135deg,rgba(244,63,94,0.18),rgba(255,255,255,0.08));border-color:rgba(244,63,94,0.25)}.wcd-b-cards-row{grid-template-columns:minmax(0,1fr) 4.2rem minmax(0,1fr);gap:0;align-items:stretch}.wcd-b-vs-divider::before{width:2px;background:linear-gradient(transparent,rgba(255,255,255,0.34),transparent)}.wcd-b-vs-badge{width:3.4rem;height:3.4rem;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,0.24);background:radial-gradient(circle at 35% 25%,rgba(255,255,255,0.9),rgba(255,255,255,0.18) 36%,rgba(255,255,255,0.08)),#101322;color:#fef3c7;box-shadow:0 0 0 8px rgba(255,255,255,0.06),0 18px 36px rgba(0,0,0,0.28)}.wcd-b-card{border:1px solid rgba(255,255,255,0.16);border-radius:18px;background:linear-gradient(180deg,rgba(255,255,255,0.98),rgba(248,250,252,0.94)),var(--card-bg);box-shadow:0 22px 50px rgba(15,23,42,0.18)}.wcd-b-card-a,.wcd-b-card-b{border-top:0}.wcd-b-card-head{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;padding:1rem;border-bottom:1px solid color-mix(in srgb,var(--primary-color) 14%,var(--border-color));background:linear-gradient(135deg,color-mix(in srgb,var(--primary-color) 12%,#fff),#fff)}.wcd-b-card-b .wcd-b-card-head{background:linear-gradient(135deg,color-mix(in srgb,var(--secondary-color) 12%,#fff),#fff)}.wcd-b-card-marker{width:2.25rem;height:2.25rem;display:inline-flex;align-items:center;justify-content:center;margin-right:0.75rem;border-radius:12px;background:var(--primary-color);color:#fff;font-weight:900;box-shadow:0 12px 22px color-mix(in srgb,var(--primary-color) 24%,transparent)}.wcd-b-card-b .wcd-b-card-marker{background:var(--secondary-color);box-shadow:0 12px 22px color-mix(in srgb,var(--secondary-color) 24%,transparent)}.wcd-b-card-word{font-size:clamp(1.35rem,2.6vw,2rem);color:var(--text-color)}.wcd-b-card-body{gap:1rem;padding:1.1rem}.wcd-b-card-meaning{position:relative;padding:0.95rem;border:1px solid var(--border-color);border-radius:14px;background:#fff}.wcd-b-card-meaning::before{content:'';position:absolute;inset:0 auto 0 0;width:4px;border-radius:14px 0 0 14px;background:linear-gradient(var(--primary-color),var(--secondary-color))}.wcd-b-card-kicker,.wcd-b-note-label,.wcd-b-card-section-label{color:var(--text-lighter);letter-spacing:0.12em}.wcd-b-card-meaning-text{font-size:clamp(1rem,1.6vw,1.14rem);line-height:1.58}.wcd-b-insight-panel{border-radius:16px}.wcd-b-card-example{border-radius:14px}.wcd-b-card-note{border-radius:14px}.wcd-b-colloc-chip{min-height:32px;border-radius:10px;background:color-mix(in srgb,var(--primary-color) 8%,#fff);font-style:normal;font-weight:700}.wcd-b-card-b .wcd-b-colloc-chip{background:color-mix(in srgb,var(--secondary-color) 8%,#fff)}.wcd-skeleton{background:linear-gradient(90deg,rgba(255,255,255,0.1) 25%,rgba(255,255,255,0.24) 50%,rgba(255,255,255,0.1) 75%);background-size:200% 100%}@media (max-width:900px){.wcd-b-meta-panel{grid-template-columns:1fr}.wcd-b-cards-row{grid-template-columns:1fr;gap:0}.wcd-b-vs-divider{flex-direction:row;height:42px}.wcd-b-vs-divider::before{inset:50% 0 auto 0;width:100%;height:2px}.wcd-b-vs-badge{width:auto;height:2.4rem;padding-inline:0.9rem}}@media (max-width:640px){.wcd-b-wrap{padding:0.8rem;border-radius:16px}.wcd-b-toolbar{flex-direction:column}.wcd-b-export-actions{align-self:stretch;grid-template-columns:repeat(2,1fr)}.wcd-b-export-btn{width:100%}.wcd-b-card-head{grid-template-columns:auto minmax(0,1fr)}.wcd-b-attr-pill{grid-column:2;justify-self:start}}@keyframes slideUpFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDownFadeIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes fadeOut{from{opacity:1}to{opacity:0}}.anim-slide-up{animation:slideUpFadeIn 220ms cubic-bezier(0.22,1,0.36,1) both}.anim-slide-down{animation:slideDownFadeIn 220ms cubic-bezier(0.22,1,0.36,1) both}.anim-fade-in{animation:fadeIn 180ms ease both}.anim-fade-out{animation:fadeOut 100ms ease both;pointer-events:none}@media (prefers-reduced-motion:reduce){.anim-slide-up,.anim-slide-down,.anim-fade-in,.anim-fade-out{animation-duration:0.01ms !important;animation-delay:0ms !important}}:root{color-scheme:light;--font-display:'Fraunces',Georgia,serif;--font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--surface-0:#f7f8ff;--surface-1:rgba(255,255,255,0.92);--surface-2:#eef2ff;--surface-3:#f8fafc;--ink-strong:#111827;--ink-muted:#566174;--ink-soft:#8b95a7;--ring-color:rgba(79,70,229,0.24);--line-strong:rgba(67,56,202,0.18);--line-soft:rgba(148,163,184,0.24);--hero-shadow:0 28px 70px rgba(49,46,129,0.22);--panel-shadow:0 24px 60px rgba(15,23,42,0.11);--panel-shadow-soft:0 12px 30px rgba(15,23,42,0.08)}:root:not([data-theme]){--primary-color:#4f46e5;--primary-dark:#3730a3;--secondary-color:#0891b2;--accent-color:#22c55e;--text-color:#172033;--text-light:#566174;--text-lighter:#8b95a7;--bg-color:#f7f8ff;--card-bg:#ffffff;--section-bg:#eef2ff;--border-color:#dbe3ff;--shadow:var(--panel-shadow-soft);--shadow-hover:var(--panel-shadow);--radius:8px;--radius-sm:6px;--transition:all 0.22s cubic-bezier(0.22,1,0.36,1)}html{scroll-behavior:smooth}body{font-family:var(--font-body);color:var(--text-color);background:linear-gradient(135deg,rgba(79,70,229,0.12),transparent 28rem),linear-gradient(315deg,rgba(34,197,94,0.13),transparent 24rem),radial-gradient(circle at 18% 16%,rgba(8,145,178,0.12),transparent 18rem),var(--bg-color);overflow-x:hidden}body::before{content:'';position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(rgba(79,70,229,0.045) 1px,transparent 1px),linear-gradient(90deg,rgba(79,70,229,0.045) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,rgba(0,0,0,0.8),transparent 72%)}.container{width:min(100%,1320px);max-width:none;padding:0 clamp(14px,3vw,30px)}button,[role="button"],.tab-link,.theme-swatch,.history-item,.suggestion-item,.word-tag,.synonym-tag,.antonym-tag,.collocation-tag,.clickable-word{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,.entry-dropdown-custom:focus-visible,.suggestion-item:focus-visible,.theme-swatch:focus-visible{outline:3px solid var(--ring-color);outline-offset:3px}.header{isolation:isolate;margin:clamp(14px,2vw,24px) 0 clamp(18px,3vw,32px);padding:clamp(22px,4vw,42px) 0 clamp(20px,3.4vw,34px);overflow:visible;border:1px solid rgba(255,255,255,0.4);border-radius:clamp(18px,2.8vw,30px);background:linear-gradient(135deg,rgba(49,46,129,0.94),rgba(79,70,229,0.92) 50%,rgba(8,145,178,0.88)),var(--primary-color);box-shadow:var(--hero-shadow)}.header::before{background-image:linear-gradient(120deg,rgba(255,255,255,0.18) 1px,transparent 1px),radial-gradient(circle at 14% 28%,rgba(34,197,94,0.38),transparent 12rem);background-size:46px 46px,auto;opacity:0.9}.header::after{content:'';position:absolute;inset:auto 8% -30% auto;width:min(360px,42vw);aspect-ratio:1;border:1px solid rgba(255,255,255,0.18);transform:rotate(14deg);border-radius:28px;background:rgba(255,255,255,0.08);pointer-events:none;z-index:-1}.header-content{max-width:920px;gap:1rem}.header-brand{align-self:center;padding:0.38rem 0.7rem;border:1px solid rgba(255,255,255,0.22);border-radius:999px;background:rgba(255,255,255,0.12);font-size:0.74rem;letter-spacing:0.16em}.header-title{margin:0;color:#fff;font-family:var(--font-display);font-size:clamp(2rem,6.2vw,4.45rem);font-weight:700;line-height:0.95;text-align:center;text-wrap:balance}.search-container{max-width:860px;position:relative;z-index:5}.search-box{min-height:66px;padding:0.55rem;border:1px solid rgba(255,255,255,0.48);border-radius:8px;background:rgba(255,255,255,0.96);box-shadow:0 20px 40px rgba(15,23,42,0.16);backdrop-filter:blur(18px)}.search-box:focus-within{border-color:rgba(255,255,255,0.92);box-shadow:0 24px 52px rgba(15,23,42,0.2),0 0 0 5px rgba(255,255,255,0.18);transform:translateY(-1px)}.search-icon{color:var(--primary-color)}#searchInput{color:var(--ink-strong);font-size:clamp(1rem,1.8vw,1.18rem);font-weight:600}#searchInput::placeholder{color:#8a93a6;font-weight:500}.search-btn,.load-more-btn,.sense-detail-btn,.generate-ai-video-btn{border-radius:7px;background:linear-gradient(135deg,var(--accent-color),#16a34a);color:#052e16;font-weight:800;box-shadow:0 12px 24px rgba(34,197,94,0.24)}.search-btn:hover,.load-more-btn:hover:not(:disabled),.sense-detail-btn:hover,.generate-ai-video-btn:hover{background:linear-gradient(135deg,#4ade80,var(--accent-color));box-shadow:0 16px 32px rgba(34,197,94,0.3)}.search-hint{margin-top:0.95rem;color:rgba(255,255,255,0.76)}.search-hint-chip{min-height:34px;border-radius:999px;background:rgba(255,255,255,0.14);border-color:rgba(255,255,255,0.26);color:#fff}.search-hint-chip:hover{background:rgba(255,255,255,0.24)}.main-content{position:relative}.results-container,.empty-state,.loading-container{width:min(100%,1160px);margin-inline:auto}.results-container{overflow:visible;border:1px solid var(--line-strong);border-radius:12px;background:var(--surface-1);box-shadow:var(--panel-shadow);backdrop-filter:blur(18px)}.word-header{padding:clamp(1.25rem,3vw,2rem);border-bottom:1px solid var(--line-soft);background:linear-gradient(135deg,color-mix(in srgb,var(--primary-color) 12%,#fff),#fff 58%),var(--card-bg)}.word-headword{font-family:var(--font-display);font-size:clamp(2.2rem,6vw,4.8rem);color:var(--ink-strong);letter-spacing:0}.word-pos-badge,.sense-pos,.part-of-speech,.register-badge,.domain-badge,.tone-badge,.word-frequency,.video-resource-badge,.wcd-type-pill,.wcd-diff-pill{border-radius:999px;border:1px solid color-mix(in srgb,currentColor 18%,transparent);background:color-mix(in srgb,var(--primary-color) 10%,#fff);color:var(--primary-dark)}.word-frequency{color:#be123c;background:#fff1f2}.audio-play-btn{background:var(--primary-color);border-radius:999px;box-shadow:0 10px 22px color-mix(in srgb,var(--primary-color) 24%,transparent)}.sticky-tabs{top:0;z-index:180;justify-content:center;margin:0;padding:0.8rem clamp(0.8rem,2vw,1.3rem);border-bottom:1px solid var(--line-soft);background:rgba(255,255,255,0.86);box-shadow:0 10px 28px rgba(15,23,42,0.06)}.tab-list{width:100%;gap:0.45rem}.tab-link{border-radius:999px;background:transparent;border:1px solid transparent;color:var(--ink-muted);font-size:0.84rem;font-weight:800}.tab-link:hover,.tab-link.active{background:var(--primary-color);border-color:var(--primary-color);box-shadow:0 8px 18px color-mix(in srgb,var(--primary-color) 22%,transparent);color:#fff}.content-single-column{gap:0;padding:clamp(0.75rem,2vw,1.1rem)}.accordion-section{margin:0 0 0.9rem;border:1px solid var(--line-soft);border-radius:10px;background:linear-gradient(135deg,rgba(255,255,255,0.92),color-mix(in srgb,var(--section-bg) 40%,rgba(255,255,255,0.88))),rgba(255,255,255,0.88);box-shadow:none}.accordion-section:last-child{margin-bottom:0}.accordion-section[open]{border-color:color-mix(in srgb,var(--primary-color) 20%,var(--border-color));box-shadow:0 16px 36px rgba(15,23,42,0.08)}.accordion-header{min-height:68px;padding:1rem clamp(1rem,2vw,1.45rem);background:linear-gradient(135deg,#fff,color-mix(in srgb,var(--section-bg) 56%,#fff))}.accordion-header h3{font-size:clamp(1rem,1.5vw,1.15rem);font-weight:800;min-width:0}.accordion-header h3 i{width:34px;height:34px;flex:0 0 34px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:color-mix(in srgb,var(--primary-color) 11%,#fff);color:var(--primary-color)}.accordion-content{padding:clamp(1rem,2vw,1.45rem);border-top-color:var(--line-soft)}.sense-item-container,.video-resource-group,.regional-section,.confusion-section,.cultural-section,.synonym-group,.usage-notes,.modern-relevance-feature,.wcd-word-card,.wcd-b-card,.wcd-b-quick-rule,.wcd-b-key-diff{border-radius:8px;border:1px solid var(--line-soft);box-shadow:0 10px 28px rgba(15,23,42,0.06)}.regional-section{background:linear-gradient(135deg,rgba(255,255,255,0.96),color-mix(in srgb,var(--secondary-color) 5%,#fff)),#fff}.region-card{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--secondary-color) 6%,#fff)),#fff}.regional-item{background:linear-gradient(135deg,rgba(255,255,255,0.97),color-mix(in srgb,var(--secondary-color) 4%,#fff)),#fff}.confusion-section{background:linear-gradient(135deg,rgba(255,255,255,0.96),color-mix(in srgb,#f59e0b 5%,#fff)),#fffef5}.confusion-item{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,#f59e0b 4%,#fff)),#fff}.usage-notes{background:linear-gradient(135deg,rgba(255,255,255,0.96),color-mix(in srgb,var(--primary-color) 5%,#fff)),#f5f5f5}.example-item,.sense-examples .example-item{background:linear-gradient(135deg,rgba(255,255,255,0.97),color-mix(in srgb,var(--accent-color) 4%,#fff)),#fafbfc}.video-resource-group{background:linear-gradient(135deg,rgba(255,255,255,0.96),color-mix(in srgb,var(--primary-color) 4%,#fff)),#fff}.empty-state-feature{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 4%,#fff)),#fff}.bilibili-video-card{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,#fb7299 4%,#fff)),#fff}.phrase-chip{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 4%,#fff)),#fff}.phrase-chip-wrapper{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 4%,#fff)),#fff}.back-to-phrases-btn{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 4%,#fff)),#fff}.ai-video-status{background:linear-gradient(135deg,rgba(255,255,255,0.96),color-mix(in srgb,#6366f1 4%,#fff)),#f8fafc}.conversation-scenario{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 3%,#fff)),#fff}.conversation-dialogue{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--secondary-color) 4%,#fff)),#fff}.entry-tab{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 3%,#fff)),#fff}.entry-dropdown{background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 3%,#fff)),#fff}.sense-item-container{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff,var(--surface-3));padding:clamp(1.1rem,2vw,1.45rem)}.sense-item-container::before{content:'';position:absolute;inset:0 auto 0 0;width:4px;background:linear-gradient(var(--primary-color),var(--secondary-color))}.sense-definition{color:var(--ink-strong);font-size:clamp(1.02rem,1.5vw,1.16rem);font-weight:700}.sense-examples .example-item,.example-item{border:1px solid var(--line-soft);border-left:4px solid var(--accent-color);border-radius:8px}.example-arrow{color:var(--accent-color)}.synonym-tags,.antonym-tags,.collocation-tags,.phrase-chips-list,.word-family-tags,.confusion-chips{gap:0.55rem}.synonym-tag,.antonym-tag,.collocation-tag,.word-tag,.phrase-chip,.confusion-chip{min-height:36px;border-radius:999px;border:1px solid var(--line-soft);background:#fff;color:var(--text-color);font-weight:700;box-shadow:0 5px 14px rgba(15,23,42,0.04)}.synonym-tag:hover,.word-tag:hover,.collocation-tag:hover,.phrase-chip:hover,.confusion-chip:hover{background:var(--primary-color);border-color:var(--primary-color);color:#fff;box-shadow:0 10px 22px color-mix(in srgb,var(--primary-color) 20%,transparent)}.antonym-tag:hover{background:#be123c;border-color:#be123c;color:#fff}.modern-relevance-feature{background:linear-gradient(135deg,rgba(79,70,229,0.96),rgba(8,145,178,0.9)),var(--primary-color);color:#fff}.feature-icon{color:#bbf7d0}.regional-cards,.bilibili-videos-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}.region-card,.bilibili-video-card,.empty-state-feature,.history-item{border-radius:8px;border:1px solid var(--line-soft);box-shadow:0 8px 22px rgba(15,23,42,0.05)}.suggestions-dropdown,.dropdown-menu,.theme-picker-panel,.history-panel{border:1px solid var(--line-soft);border-radius:10px;background:rgba(255,255,255,0.96);box-shadow:var(--panel-shadow);backdrop-filter:blur(18px)}.suggestions-dropdown{max-height:var(--suggestions-max-height,clamp(300px,52vh,440px))}.suggestion-item:hover,.suggestion-item.selected,.dropdown-option:hover,.dropdown-option.selected{background:var(--section-bg);color:var(--primary-dark);padding-left:1rem}.entry-dropdown-custom{border-radius:999px;border:1px solid var(--line-soft);background:#fff;box-shadow:0 6px 16px rgba(15,23,42,0.05)}.etymology-text,.root-analysis{position:relative;overflow:hidden;border:1px solid var(--line-soft);border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,0.96),rgba(238,242,255,0.76)),#fff;box-shadow:0 12px 30px rgba(15,23,42,0.06)}.etymology-text{padding:1.15rem 1.2rem 1.15rem 3.2rem;margin-bottom:1rem}.etymology-text::before{content:'';position:absolute;left:1.25rem;top:1.2rem;bottom:1.2rem;width:3px;border-radius:999px;background:linear-gradient(var(--primary-color),var(--accent-color))}.etymology-text::after{content:'';position:absolute;left:0.86rem;top:1.1rem;width:15px;height:15px;border-radius:50%;background:var(--accent-color);box-shadow:0 0 0 6px color-mix(in srgb,var(--accent-color) 18%,transparent)}.etymology-lang-term{display:inline-flex;align-items:center;min-height:1.6em;padding:0 0.38em;border:1px solid color-mix(in srgb,var(--secondary-color) 24%,transparent);border-radius:999px;background:color-mix(in srgb,var(--secondary-color) 10%,#fff);text-decoration:none}.root-analysis{padding:1rem 1.1rem;border-left:0;background:linear-gradient(135deg,color-mix(in srgb,var(--accent-color) 11%,#fff),#fff 56%),#fff}.etymology-label{display:inline-flex;align-items:center;gap:0.45rem;margin-bottom:0.65rem;color:var(--primary-dark)}.etymology-label::before{content:'';width:9px;height:9px;border-radius:3px;background:var(--accent-color);transform:rotate(45deg)}.synonyms-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.synonym-group{position:relative;overflow:hidden;padding:1rem;border-radius:12px;background:linear-gradient(145deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--primary-color) 7%,#fff)),#fff}.synonym-group::before{content:'';position:absolute;inset:0 auto 0 0;width:5px;background:linear-gradient(var(--primary-color),var(--secondary-color))}.synonym-group:has(.antonym-header)::before{background:linear-gradient(#fb7185,#f97316)}.synonym-group-header{position:relative;border-bottom:0;padding:0 0 0.25rem;color:var(--primary-dark);font-size:0.82rem}.synonym-group-header::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,currentColor,transparent);opacity:0.22}.synonym-group-header.antonym-header{color:#be123c;border-bottom:0}.synonyms-list,.antonyms-list{gap:0.55rem;margin-top:0.75rem}.synonym-tag,.antonym-tag{position:relative;padding:0.52rem 0.8rem;border-radius:999px;border:1px solid color-mix(in srgb,var(--primary-color) 14%,var(--line-soft));background:rgba(255,255,255,0.82)}.synonym-tag{color:var(--primary-dark)}.antonym-tag{color:#be123c;border-color:rgba(190,18,60,0.16);background:#fff7f7}.word-family-tags{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:0.65rem;padding:0.2rem;overflow:visible}.word-tag{min-height:44px;justify-content:center;border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,0.94),color-mix(in srgb,var(--accent-color) 10%,#fff)),#fff}.word-tag::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--accent-color);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent-color) 16%,transparent)}.cultural-notes-structured{display:grid;gap:0.9rem}.cultural-notes-structured > .cultural-section,.cultural-section{border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,0.98),color-mix(in srgb,var(--secondary-color) 6%,#fff)),#fff}.cultural-section-header{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:0.65rem;margin-bottom:0.75rem;padding-bottom:0.7rem;border-bottom:1px solid var(--line-soft);color:var(--ink-strong)}.cultural-section-header i{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;background:color-mix(in srgb,var(--secondary-color) 12%,#fff);color:var(--secondary-color)}.cultural-section-content{padding-left:0}.empty-state{position:relative;padding:clamp(2.4rem,6vw,4.4rem) 1rem;border:1px solid var(--line-strong);border-radius:16px;background:linear-gradient(135deg,rgba(255,255,255,0.96),rgba(238,242,255,0.78)),var(--card-bg);box-shadow:var(--panel-shadow);overflow:hidden}.empty-state::before{content:'';position:absolute;inset:0;background-image:linear-gradient(120deg,rgba(79,70,229,0.06) 1px,transparent 1px),linear-gradient(30deg,rgba(34,197,94,0.06) 1px,transparent 1px);background-size:38px 38px;pointer-events:none}.empty-state-content{position:relative;max-width:860px}.empty-state-icon-wrap{width:82px;height:82px;border-radius:18px;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border:0;box-shadow:0 18px 36px color-mix(in srgb,var(--primary-color) 24%,transparent);color:#fff;transform:rotate(-4deg)}.empty-state h3{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,3.2rem);color:var(--ink-strong)}.empty-feature-pill{display:inline-flex;align-items:center;justify-content:center;gap:0.45rem;border-radius:999px;border:1px solid var(--line-soft);color:var(--ink-muted);text-align:center;min-height:58px;padding:0.85rem 1rem;white-space:normal}.empty-state-features{display:grid;grid-template-columns:repeat(2,minmax(170px,220px));justify-content:center;gap:0.75rem;width:min(100%,500px);margin:1.35rem auto 0}.loading-container{padding:clamp(3rem,8vw,5.5rem);border-radius:16px;background:rgba(255,255,255,0.76);box-shadow:var(--panel-shadow-soft);backdrop-filter:blur(12px)}.spinner,.section-loading .spinner,.spinner-small{border-top-color:var(--accent-color)}.speed-dial{right:clamp(1rem,2vw,1.5rem);bottom:clamp(1rem,2vw,1.5rem)}.speed-dial-main-btn,.speed-dial-child-btn{background:var(--ink-strong);box-shadow:0 16px 34px rgba(15,23,42,0.24)}.speed-dial-child-btn:hover,.speed-dial-main-btn:hover{background:var(--primary-color)}.speed-dial-label{border-radius:999px;background:rgba(17,24,39,0.88)}.history-panel-header{background:linear-gradient(135deg,var(--primary-dark),var(--primary-color))}.theme-swatches{grid-template-columns:repeat(7,1fr)}.theme-swatch{border-radius:8px}.theme-swatch.active::after{border-radius:6px}.footer{width:min(100%,1160px);margin-inline:auto;border-top-color:var(--line-soft)}@media (min-width:940px){.header{padding:clamp(28px,4.2vw,56px) 0}.header-content{display:grid;grid-template-columns:minmax(280px,0.85fr) minmax(440px,1.15fr);grid-template-areas:"brand search" "title search";align-items:center;column-gap:clamp(2rem,5vw,5.5rem);row-gap:1rem;max-width:1120px;padding-inline:clamp(1.2rem,4vw,3rem)}.header-brand{grid-area:brand;justify-self:start;align-self:end}.header-title{grid-area:title;text-align:left;max-width:520px;font-size:clamp(3rem,6vw,5.45rem)}.search-container{grid-area:search;position:relative;max-width:none;padding:1rem;border:1px solid rgba(255,255,255,0.22);border-radius:16px;background:linear-gradient(135deg,rgba(255,255,255,0.18),rgba(255,255,255,0.08)),rgba(17,24,39,0.12);box-shadow:inset 0 1px 0 rgba(255,255,255,0.18),0 24px 55px rgba(15,23,42,0.2);backdrop-filter:blur(18px)}.search-container::before,.search-container::after{content:'';position:absolute;pointer-events:none;border:1px solid rgba(255,255,255,0.24)}.search-container::before{inset:-12px auto auto -12px;width:64px;height:64px;border-right:0;border-bottom:0;border-radius:14px 0 0}.search-container::after{inset:auto -12px -12px auto;width:64px;height:64px;border-left:0;border-top:0;border-radius:0 0 14px}.search-hint{justify-content:flex-start;padding-inline:0.25rem}.results-container{display:grid;grid-template-columns:minmax(280px,340px) minmax(0,1fr);grid-template-rows:auto 1fr;align-items:start;overflow:visible;border-radius:16px;background:rgba(255,255,255,0.72)}.word-header{grid-column:1;grid-row:1 / span 2;position:sticky;top:16px;min-height:calc(100vh - 32px);border-right:1px solid var(--line-soft);border-bottom:0;border-radius:16px 0 0 16px;overflow:hidden}.word-header::after{content:'';position:absolute;right:-80px;bottom:-80px;width:190px;aspect-ratio:1;border-radius:28px;border:1px solid color-mix(in srgb,var(--primary-color) 18%,transparent);background:color-mix(in srgb,var(--primary-color) 6%,transparent);transform:rotate(18deg);pointer-events:none}.word-header-main{position:relative;z-index:1;min-height:0;justify-content:flex-start;gap:1.35rem}.word-title-row{align-items:flex-start;flex-direction:column}.word-headword{width:100%;font-size:clamp(2rem,3.2vw,2.85rem);line-height:1.02;overflow-wrap:anywhere;word-break:normal;hyphens:none}.word-meta-inline,.word-meta-group,.word-pronunciation{width:100%}.word-meta-inline{align-items:flex-start;flex-direction:column}.entry-tabs-container{max-width:100%}.sticky-tabs{grid-column:2;grid-row:1;top:0;border-radius:0 16px 0 0}.content-single-column{grid-column:2;grid-row:2;padding:clamp(1rem,2vw,1.4rem)}.empty-state{text-align:left;padding:clamp(2.2rem,4vw,3.6rem)}.empty-state-content{display:grid;grid-template-columns:210px minmax(0,1fr);grid-template-areas:"icon title" "icon copy" "features features";gap:1.1rem 2rem;align-items:center}.empty-state-icon-wrap{grid-area:icon;width:160px;height:160px;justify-self:center;margin:0;font-size:3.3rem}.empty-state h3{grid-area:title;margin:0}.empty-state p{grid-area:copy;max-width:560px;margin:0}.empty-state-features{grid-area:features;display:grid;grid-template-columns:repeat(4,minmax(128px,1fr));justify-content:center;gap:0.75rem;width:min(100%,680px);max-width:680px;margin:1.1rem auto 0;justify-self:center}.empty-feature-pill{min-height:68px;border-radius:10px;justify-content:center;padding:0.9rem 0.8rem;white-space:normal;line-height:1.25}}@media (max-width:939px){.results-container{overflow:visible}.sticky-tabs{position:sticky;top:0;z-index:220;border-radius:12px 12px 0 0}.empty-state{text-align:center}.empty-state-content{max-width:760px;margin-inline:auto}.empty-state-icon-wrap{margin-inline:auto}.empty-state-features{grid-template-columns:repeat(2,minmax(170px,220px));justify-content:center;justify-items:stretch;width:min(100%,500px);margin-inline:auto}.empty-feature-pill{width:auto}}@media (min-width:980px){.tab-list{justify-content:center}.word-header-main{gap:1.15rem}}@media (max-width:760px){.container{padding-inline:10px}.header{border-radius:16px}.search-box{min-height:62px;gap:0.25rem}.search-icon{padding-inline:0.6rem}.search-btn{padding:0.78rem 0.9rem}.search-btn i{display:none}.sticky-tabs{justify-content:flex-start}.accordion-header h3{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:0.75rem}.accordion-header h3 i{margin:0}.synonyms-grid{grid-template-columns:1fr}.etymology-text{padding:1rem 1rem 1rem 2.75rem}.etymology-text::before{left:1rem}.etymology-text::after{left:0.61rem}.word-family-tags{grid-template-columns:repeat(auto-fit,minmax(104px,1fr))}.accordion-content{padding:1rem}.empty-state-features{grid-template-columns:repeat(2,minmax(145px,1fr));width:min(100%,460px)}.empty-feature-pill{width:auto;white-space:normal}.history-panel{width:min(100vw,390px)}}@media (max-width:460px){.header-title{font-size:clamp(2rem,13vw,3.15rem)}.search-box{flex-wrap:wrap}#searchInput{min-width:calc(100% - 58px)}.search-btn{width:100%;justify-content:center}.word-title-row{align-items:flex-start}.word-headword{width:100%}.empty-state-features{grid-template-columns:minmax(0,min(390px,100%));width:100%}.empty-feature-pill{width:auto}.theme-picker-panel{right:0.75rem;width:calc(100vw - 1.5rem)}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;scroll-behavior:auto !important;transition-duration:0.01ms !important}}.skip-link{position:fixed;top:14px;left:14px;z-index:3000;transform:translateY(-160%);padding:0.75rem 1rem;border:2px solid var(--border-color);border-radius:12px;background:var(--card-bg);color:var(--text-color);box-shadow:0 12px 28px rgba(15,23,42,0.16);font-weight:800;text-decoration:none;transition:transform 0.18s ease}.skip-link:focus{transform:translateY(0)}.launcher-topline{display:flex;align-items:center;justify-content:space-between;gap:0.75rem}.style-mode-toggle{min-height:38px;display:inline-flex;align-items:center;gap:0.45rem;padding:0.45rem 0.75rem;border:1px solid color-mix(in srgb,var(--primary-color) 24%,var(--border-color));border-radius:999px;background:color-mix(in srgb,var(--primary-color) 7%,var(--card-bg));color:var(--text-color);cursor:pointer;font:inherit;font-size:0.78rem;font-weight:800;line-height:1;box-shadow:0 8px 18px color-mix(in srgb,var(--primary-color) 10%,transparent);transition:transform 0.18s ease,box-shadow 0.18s ease,background 0.18s ease}.style-mode-toggle:hover,.style-mode-toggle:focus-visible{transform:translateY(-1px);box-shadow:0 12px 24px color-mix(in srgb,var(--primary-color) 14%,transparent)}.style-mode-toggle::after{content:'';width:9px;height:9px;flex:0 0 auto;border-radius:999px;background:#22c55e;box-shadow:0 0 0 2px color-mix(in srgb,currentColor 22%,transparent)}[data-style-mode="professional"] .style-mode-toggle::after{background:#3b82f6}.scroll-top-btn{position:fixed;right:clamp(1rem,2vw,1.5rem);bottom:calc(clamp(1rem,2vw,1.5rem) + 72px);z-index:998;width:48px;height:48px;display:inline-flex;align-items:center;justify-content:center;border:1px solid color-mix(in srgb,var(--primary-color) 24%,var(--border-color));border-radius:999px;background:color-mix(in srgb,var(--card-bg) 88%,transparent);color:var(--primary-dark);box-shadow:0 14px 30px rgba(15,23,42,0.16);cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px) scale(0.92);transition:opacity 0.18s ease,transform 0.18s ease,background 0.18s ease,box-shadow 0.18s ease}.scroll-top-btn.visible{opacity:1;pointer-events:auto;transform:translateY(0) scale(1)}.scroll-top-btn:hover,.scroll-top-btn:focus-visible{background:var(--primary-color);color:#fff;transform:translateY(-2px) scale(1);box-shadow:0 18px 36px color-mix(in srgb,var(--primary-color) 22%,transparent)}[data-style-mode="professional"] .launcher-orbit,[data-style-mode="professional"] .launcher-badges,[data-style-mode="professional"] .map-ribbon{display:none}[data-style-mode="professional"] .word-adventure-shell{display:block;width:min(100%,1320px);padding:0 clamp(14px,3vw,30px)}[data-style-mode="professional"] .word-launcher{position:relative;top:auto;min-height:0}[data-style-mode="professional"] .word-map{display:block}@media (max-width:560px){.launcher-topline{align-items:flex-start;flex-direction:column}.scroll-top-btn{right:1rem;bottom:5.25rem;width:44px;height:44px}}@media (prefers-reduced-motion:reduce){.scroll-top-btn{transition-duration:0.01ms}}