*{margin:0;padding:0;box-sizing:border-box}:root{--pink-50: #fdf2f8;--pink-100: #fce7f3;--pink-200: #fbcfe8;--pink-300: #f9a8d4;--pink-400: #f472b6;--pink-500: #ec4899;--pink-600: #db2777;--purple-100: #f3e8ff;--purple-200: #e9d5ff;--purple-400: #c084fc;--purple-500: #a855f7}body{font-family:PingFang SC,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--pink-50);min-height:100vh}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:linear-gradient(180deg,var(--pink-400) 0%,var(--purple-400) 100%);padding:24px 16px;display:flex;flex-direction:column;box-shadow:4px 0 20px #ec489926}.sidebar-header{display:flex;align-items:center;gap:12px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.2);margin-bottom:24px}.sidebar-header .logo{font-size:2rem}.sidebar-header h1{color:#fff;font-size:1.3rem;font-weight:600}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:8px}.nav-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border:none;background:#ffffff1a;border-radius:12px;cursor:pointer;transition:all .3s ease;text-align:left}.nav-item:hover:not(.disabled){background:#ffffff40;transform:translate(4px)}.nav-item.disabled{opacity:.5;cursor:not-allowed}.nav-icon{font-size:1.3rem}.nav-text{color:#fff;font-size:.95rem;font-weight:500}.sidebar-footer{padding-top:20px;border-top:1px solid rgba(255,255,255,.2)}.sidebar-footer p{color:#fffc;font-size:.85rem;text-align:center}.main-content{flex:1;padding:40px;overflow-y:auto}.welcome-section{text-align:center;margin-bottom:48px}.welcome-title{font-size:2rem;color:var(--pink-600);margin-bottom:12px;display:flex;align-items:center;justify-content:center;gap:12px}.welcome-desc{color:var(--pink-400);font-size:1.1rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px;max-width:1200px;margin:0 auto}.feature-card{background:#fff;border-radius:24px;padding:28px 24px;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden;border:2px solid var(--pink-100);box-shadow:0 4px 20px #ec489914}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--pink-400),var(--purple-400));opacity:0;transition:opacity .3s}.feature-card:hover:not(.disabled){transform:translateY(-8px);border-color:var(--pink-300);box-shadow:0 12px 40px #ec489926}.feature-card:hover:not(.disabled):before{opacity:1}.feature-card.disabled{opacity:.6;cursor:not-allowed}.card-decoration{position:absolute;top:16px;right:16px;font-size:1.5rem;opacity:.6}.card-icon{font-size:3rem;margin-bottom:16px}.card-title{font-size:1.2rem;color:var(--pink-600);margin-bottom:8px;font-weight:600}.card-desc{color:#888;font-size:.9rem;line-height:1.5}.card-arrow{position:absolute;bottom:20px;right:20px;color:var(--pink-400);font-size:1.2rem;transition:transform .3s}.feature-card:hover:not(.disabled) .card-arrow{transform:translate(4px)}.feature-page{min-height:100vh;background:var(--pink-50);display:flex}.feature-sidebar{width:280px;background:#fff;padding:24px;border-right:1px solid var(--pink-100);display:flex;flex-direction:column;gap:20px}.feature-main{flex:1;padding:32px;display:flex;flex-direction:column;align-items:center}.back-btn{display:inline-flex;align-items:center;gap:8px;background:#fff;border:2px solid var(--pink-200);padding:10px 20px;border-radius:20px;cursor:pointer;font-size:.95rem;color:var(--pink-500);font-weight:500;transition:all .2s;margin-bottom:20px}.back-btn:hover{background:var(--pink-50);border-color:var(--pink-300);transform:translate(-4px)}.feature-title-main{font-size:1.8rem;color:var(--pink-600);margin-bottom:8px;text-align:center}.feature-subtitle{color:var(--pink-400);margin-bottom:24px;text-align:center}.settings-card{background:#fff;border-radius:16px;padding:20px;border:1px solid var(--pink-100)}.settings-card h3{font-size:1rem;color:var(--pink-600);margin-bottom:16px;display:flex;align-items:center;gap:8px}.setting-item{margin-bottom:20px}.setting-item:last-child{margin-bottom:0}.setting-item label{display:block;font-size:.85rem;color:#666;margin-bottom:8px}.setting-item input[type=range]{width:100%;height:6px;border-radius:3px;background:var(--pink-100);outline:none;-webkit-appearance:none}.setting-item input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--pink-400),var(--purple-400));cursor:pointer;box-shadow:0 2px 8px #ec48994d}.btn-group{display:flex;flex-wrap:wrap;gap:8px}.btn{padding:10px 18px;font-size:.9rem;font-weight:500;border:none;border-radius:20px;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:6px}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--pink-400),var(--purple-400));box-shadow:0 4px 15px #ec48994d}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #ec489966}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{color:var(--pink-500);background:var(--pink-50);border:1px solid var(--pink-200)}.btn-secondary:hover{background:var(--pink-100)}.btn-icon{padding:10px;min-width:40px}.matrix-container{padding:32px;border-radius:20px;overflow-x:auto;box-shadow:0 8px 32px #0000001a}.matrix{display:inline-block;font-weight:700;letter-spacing:1px}.matrix-row{display:flex;justify-content:center}.matrix-cell{display:flex;align-items:center;justify-content:center}.hint{color:var(--pink-400);font-size:.9rem;margin:20px 0;text-align:center}.words-list{margin-top:20px;padding:20px;background:#fff;border-radius:16px;border:1px solid var(--pink-100);width:100%;max-width:500px}.words-list h3{color:var(--pink-600);margin-bottom:16px;font-size:.95rem}.words-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:10px}.word-item{display:flex;flex-direction:column;padding:10px;background:var(--pink-50);border-radius:12px;text-align:center}.word-en{font-weight:600;color:var(--pink-500);font-size:.85rem}.word-cn{color:#888;font-size:.75rem;margin-top:2px}@media (max-width: 900px){.app-layout{flex-direction:column}.sidebar{width:100%;padding:16px;flex-direction:row;align-items:center;justify-content:space-between}.sidebar-nav{flex-direction:row;flex-wrap:wrap;justify-content:center}.sidebar-footer{display:none}.feature-page{flex-direction:column}.feature-sidebar{width:100%;border-right:none;border-bottom:1px solid var(--pink-100)}}@media (max-width: 640px){.main-content{padding:24px 16px}.welcome-title{font-size:1.5rem}.features-grid{grid-template-columns:1fr}.sidebar-header h1,.nav-text{display:none}.nav-item{padding:12px}}.book-generate-card{background:#fff;border-radius:24px;padding:48px;text-align:center;border:2px solid var(--pink-100);box-shadow:0 8px 32px #ec48991a;max-width:500px}.book-icon{font-size:4rem;margin-bottom:16px}.book-generate-card h2{color:var(--pink-600);margin-bottom:8px}.text-input{width:100%;padding:12px 16px;border:2px solid var(--pink-200);border-radius:12px;font-size:1rem;outline:none;transition:border-color .2s}.text-input:focus{border-color:var(--pink-400)}.btn-large{padding:16px 32px;font-size:1.1rem}.subliminal-page{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1a1a;overflow:hidden}.subliminal-background{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden}.subliminal-star{position:absolute;color:#fff6;font-size:.75rem;white-space:nowrap;filter:blur(.8px);animation:starTwinkle 3s ease-in-out infinite;transform-origin:center}@keyframes starTwinkle{0%,to{opacity:0;transform:scale(.8)}20%{opacity:.6;transform:scale(1)}50%{opacity:.3;transform:scale(1.05)}80%{opacity:.5;transform:scale(.95)}}.subliminal-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at center,transparent 0%,rgba(0,0,0,.3) 100%)}.subliminal-center{text-align:center;color:#fff}.focus-point{font-size:2rem;color:var(--pink-400);animation:pulse 2s ease-in-out infinite;margin-bottom:24px}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.7}}.subliminal-center h2{font-size:1.5rem;margin-bottom:12px;font-weight:400}.subliminal-center p{color:#fff9;margin-bottom:8px}.countdown-circle{width:80px;height:80px;border:3px solid var(--pink-400);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:32px auto 16px;font-size:2rem;color:var(--pink-400)}.think-page{min-height:100vh;background:linear-gradient(135deg,#1a1a2e,#16213e);display:flex;align-items:center;justify-content:center}.think-content{text-align:center;color:#fff;padding:48px}.think-icon{font-size:4rem;margin-bottom:24px}.think-content h2{font-size:2rem;margin-bottom:16px;font-weight:400}.think-content p{color:#ffffffb3;font-size:1.1rem;margin-bottom:8px}.think-hint{color:var(--pink-300)!important;font-size:1.2rem!important;margin:24px 0 32px!important}.number-input{width:150px;padding:16px;font-size:2rem;text-align:center;border:3px solid var(--pink-400);border-radius:16px;background:#ffffff1a;color:#fff;outline:none;margin-bottom:24px}.number-input::placeholder{color:#ffffff4d}.number-input:focus{border-color:var(--pink-300);background:#ffffff26}.reveal-card{background:#fff;border-radius:32px;padding:64px 48px;text-align:center;box-shadow:0 20px 60px #ec489926;max-width:500px;animation:revealIn .6s ease-out}@keyframes revealIn{0%{opacity:0;transform:scale(.9) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.reveal-number{font-size:1.5rem;color:var(--pink-400);margin-bottom:16px}.reveal-answer{font-size:2.5rem;color:var(--pink-600);font-weight:600;margin-bottom:24px;line-height:1.4}.reveal-hint{color:#888;font-size:1rem}.number-input::-webkit-outer-spin-button,.number-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.number-input[type=number]{-moz-appearance:textfield}:root{--primary: #5B8A72;--primary-light: #7BA896;--primary-dark: #3D6B5A;--accent: #E8C87E;--accent-light: #F5E6C3;--success: #7BA896;--warning: #D4A853;--danger: #C17B6E;--info: #6B9DAD;--bg-primary: #F7F9F5;--bg-secondary: #EEF3EA;--bg-card: #FFFFFF;--text-primary: #3A4A42;--text-secondary: #5C6E64;--text-muted: #8A9B91;--border: #D8E2DA;--shadow: rgba(91, 138, 114, .1)}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.5;color:var(--text-primary);background-color:var(--bg-primary)}#root{min-height:100vh}