.header{background-color:var(--bg-secondary);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;padding:var(--spacing-md) 0}.header-container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg);display:flex;justify-content:space-between;align-items:center}.header-logo{display:flex;align-items:center;gap:var(--spacing-sm);font-family:var(--font-serif);font-size:1.5rem;font-weight:600;color:var(--text-primary);transition:color var(--transition-fast)}.header-logo:hover{color:var(--accent-primary)}.logo-icon{font-size:2rem}.header-nav{display:flex;gap:var(--spacing-lg)}.nav-link{font-size:1rem;font-weight:500;color:var(--text-secondary);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-sm);transition:all var(--transition-fast);position:relative}.nav-link:hover,.nav-link.active{color:var(--accent-primary);background-color:var(--bg-tertiary)}.nav-link.active:after{content:"";position:absolute;bottom:-4px;left:50%;transform:translate(-50%);width:4px;height:4px;border-radius:50%;background-color:var(--accent-primary)}@media (max-width: 640px){.header-logo{font-size:1.25rem}.logo-icon{font-size:1.5rem}.nav-link{font-size:.938rem;padding:var(--spacing-xs) var(--spacing-sm)}}.footer{background-color:var(--text-primary);color:var(--bg-primary);padding:var(--spacing-2xl) 0 var(--spacing-lg);margin-top:auto}.footer-container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.footer-content{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-xl);padding-bottom:var(--spacing-xl);border-bottom:1px solid rgba(255,255,255,.1)}.footer-section{display:flex;flex-direction:column;gap:var(--spacing-sm)}.footer-title{font-family:var(--font-serif);font-size:1.125rem;font-weight:600;margin-bottom:var(--spacing-xs)}.footer-text{font-size:.938rem;line-height:1.6;opacity:.8}.footer-links{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-xs)}.footer-links a{font-size:.938rem;opacity:.8;transition:all var(--transition-fast)}.footer-links a:hover{opacity:1;color:var(--accent-light)}.footer-bottom{padding-top:var(--spacing-lg);text-align:center}.copyright{font-size:.875rem;opacity:.6}@media (max-width: 768px){.footer-content{grid-template-columns:1fr;text-align:center}.footer-section{align-items:center}}.simple-card-container{position:relative;width:100%;height:100%;z-index:1}.simple-card-container.open{z-index:1000}.simple-card-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:999;animation:simpleFadeIn .2s ease-out}@keyframes simpleFadeIn{0%{opacity:0}to{opacity:1}}.simple-card-overlay-active{overflow:hidden!important}.simple-card{position:relative;width:100%;height:380px;background:linear-gradient(135deg,#faf8f5,#f5f1eb);border-radius:16px;box-shadow:0 8px 24px #0000001f;cursor:pointer;transition:all .3s ease;overflow:hidden}.simple-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px #00000026}.simple-card.open{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:80vw;max-width:1000px;height:80vh;z-index:1000;cursor:default;border-radius:20px;overflow-y:auto}.simple-card-cover{height:100%;padding:32px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-sizing:border-box}.simple-card.open .simple-card-cover{display:none}.simple-card-icon{width:96px;height:96px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:20px;transition:transform .3s ease}.simple-card:hover .simple-card-icon{transform:scale(1.08)}.simple-card-title{font-family:Georgia,Times New Roman,SimSun,serif;font-size:1.6rem;font-weight:700;color:#2c3e50;margin:0 0 12px;letter-spacing:1px}.simple-card-desc{font-size:.95rem;color:#5d6d7e;line-height:1.6;margin:0 0 24px;font-style:italic;max-width:320px}.simple-card-stats{display:inline-flex;flex-direction:column;align-items:center;padding:12px 28px;background:#fffc;border-radius:12px;box-shadow:0 4px 12px #00000014}.simple-card-stats .stats-number{font-family:Georgia,serif;font-size:2rem;font-weight:700;color:var(--book-color);line-height:1}.simple-card-stats .stats-label{font-size:.8rem;color:#7f8c8d;margin-top:6px;letter-spacing:1px}.simple-card-full-notice{margin-top:16px;padding:8px 16px;background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:#fff;border-radius:20px;font-size:.85rem;font-weight:600;box-shadow:0 4px 12px #ff6b6b4d}.simple-card-content{height:100%;padding:28px 24px;display:flex;flex-direction:column;box-sizing:border-box;overflow-y:auto}.simple-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:2px dashed rgba(139,69,19,.15)}.simple-card-header-left{display:flex;align-items:center;gap:14px}.simple-card-header-icon{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center}.simple-card-header-title{font-family:Georgia,Times New Roman,SimSun,serif;font-size:1.5rem;font-weight:700;color:#2c3e50;margin:0}.simple-card-header-subtitle{font-size:.9rem;color:#7f8c8d;margin:4px 0 0}.simple-card-close{width:40px;height:40px;border-radius:50%;border:none;background:#00000014;font-size:1.4rem;font-weight:500;color:#2c3e50;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.simple-card-close:hover{background:#00000026;transform:rotate(90deg)}.simple-card-clubs{flex:1;overflow-y:auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding-right:8px}.simple-card-clubs::-webkit-scrollbar{width:6px}.simple-card-clubs::-webkit-scrollbar-track{background:#0000000d;border-radius:3px}.simple-card-clubs::-webkit-scrollbar-thumb{background:var(--book-color);border-radius:3px}.simple-club-item{position:relative;background:#ffffffe6;border-radius:12px;padding:18px;border:2px solid transparent;transition:all .25s ease;cursor:pointer}.simple-club-item:hover{background:#fff;border-color:var(--club-color);transform:translateY(-3px);box-shadow:0 6px 16px #0000001a}.simple-club-item.full{background:#fff0f0e6;border-color:#ff6b6b}.simple-club-badge{position:absolute;top:12px;right:12px;padding:4px 10px;background:var(--club-color);color:#fff;font-size:.7rem;font-weight:600;border-radius:10px;display:flex;align-items:center;gap:4px}.simple-club-full-tag{background:#ff6b6b;padding:2px 8px;border-radius:8px;font-size:.65rem;margin-left:4px}.simple-club-name{font-size:1.1rem;font-weight:700;color:#2c3e50;margin:0 0 8px;padding-right:50px}.simple-club-desc{font-size:.85rem;color:#5d6d7e;line-height:1.6;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.simple-club-meta{display:flex;gap:12px;font-size:.75rem;color:#7f8c8d;font-weight:500}.simple-club-link{color:var(--club-color);font-size:.8rem;font-weight:600}.simple-card-link{display:inline-block;padding:12px 24px;background:var(--book-color);color:#fff;text-decoration:none;font-weight:600;font-size:.9rem;border-radius:10px;text-align:center;transition:all .3s ease;box-shadow:0 4px 12px #00000026;align-self:center;margin-top:20px}.simple-card-link:hover{transform:translateY(-2px);box-shadow:0 6px 16px #0003;filter:brightness(1.1)}@media (max-width: 1024px){.simple-card{height:360px}.simple-card-title{font-size:1.5rem}.simple-card-icon{width:88px;height:88px}.simple-card-clubs{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}}@media (max-width: 768px){.simple-card{height:340px}.simple-card-cover{padding:28px 20px}.simple-card-title{font-size:1.4rem}.simple-card-desc{font-size:.9rem}.simple-card-content{padding:24px 20px}.simple-card-header-title{font-size:1.4rem}.simple-card-clubs{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}}@media (max-width: 480px){.simple-card{height:320px}.simple-card-icon{width:80px;height:80px}.simple-card-title{font-size:1.3rem}.simple-card-stats .stats-number{font-size:1.75rem}.simple-card-clubs{grid-template-columns:1fr}.simple-card.open{width:90vw;height:85vh}}.home-page{padding-top:var(--spacing-xl);min-height:100vh}.home-header{text-align:center;margin-bottom:var(--spacing-2xl);animation:fadeInDown .6s ease-out}.book-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px 20px;margin-bottom:var(--spacing-2xl);width:100%}.book-grid>*{animation:bookCardEnter .5s ease-out backwards}.book-grid>*:nth-child(1){animation-delay:.05s}.book-grid>*:nth-child(2){animation-delay:.1s}.book-grid>*:nth-child(3){animation-delay:.15s}.book-grid>*:nth-child(4){animation-delay:.2s}.book-grid>*:nth-child(5){animation-delay:.25s}.book-grid>*:nth-child(6){animation-delay:.3s}.book-grid>*:nth-child(7){animation-delay:.35s}.book-grid>*:nth-child(8){animation-delay:.4s}.book-grid>*:nth-child(9){animation-delay:.45s}.book-grid>*:nth-child(10){animation-delay:.5s}.book-grid>*:nth-child(11){animation-delay:.55s}.book-grid>*:nth-child(12){animation-delay:.6s}@keyframes bookCardEnter{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 1024px){.book-grid{grid-template-columns:repeat(2,1fr);gap:20px 16px}}@media (max-width: 768px){.book-grid{grid-template-columns:repeat(2,1fr);gap:16px 12px}.page-title{font-size:2rem}}@media (max-width: 480px){.book-grid{grid-template-columns:1fr;gap:16px}.page-title{font-size:1.75rem}.page-subtitle{font-size:.95rem}}.club-card{display:block;background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;transition:all var(--transition-base);position:relative}.club-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}.club-card-header{height:8px;background-color:var(--club-color)}.club-card-badge{display:inline-block;padding:4px 12px;background-color:var(--club-color);color:#fff;font-size:.75rem;font-weight:500;border-radius:12px;position:absolute;top:var(--spacing-md);right:var(--spacing-md);display:flex;align-items:center;gap:4px}.badge-full-tag{background:#ffffff4d;padding:2px 6px;border-radius:4px;font-size:.65rem;font-weight:700}.club-card.club-full{background:linear-gradient(135deg,#fff5f5,#fff0f0);border:2px solid #ff6b6b}.club-card.club-full:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:#ff6b6b0d;pointer-events:none}.club-full-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:linear-gradient(135deg,#ff6b6bf2,#ee5a5af2);color:#fff;padding:12px 24px;border-radius:12px;font-size:1rem;font-weight:700;box-shadow:0 8px 24px #ff6b6b66;z-index:10;pointer-events:none;white-space:nowrap;animation:pulseOverlay 2s infinite}@keyframes pulseOverlay{0%,to{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.05)}}.club-card-content{padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-sm)}.club-card-title{font-family:var(--font-serif);font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.club-card-teachers{font-size:.875rem;color:var(--text-secondary);font-weight:500}.club-card-description{font-size:.938rem;color:var(--text-secondary);line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.club-card-footer{display:flex;justify-content:space-between;align-items:center;padding-top:var(--spacing-md);margin-top:var(--spacing-xs);border-top:1px solid var(--bg-tertiary)}.club-card-members{display:flex;align-items:center;gap:6px;font-size:.875rem;color:var(--text-secondary)}.club-card-members svg{color:var(--club-color)}.club-card-link{font-size:.875rem;font-weight:500;color:var(--club-color);transition:transform var(--transition-fast)}.club-card:hover .club-card-link{transform:translate(4px)}@media (max-width: 768px){.club-card-content{padding:var(--spacing-md)}.club-card-title{font-size:1.125rem}}.subject-clubs-page{padding-top:var(--spacing-xl)}.subject-header{text-align:center;margin-bottom:var(--spacing-2xl);padding:var(--spacing-xl);background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border-top:4px solid var(--subject-color);animation:fadeInDown .6s ease-out}.club-count{display:inline-block;padding:var(--spacing-xs) var(--spacing-md);background-color:var(--bg-tertiary);border-radius:var(--radius-md);font-size:.938rem;font-weight:500;color:var(--text-secondary);margin-top:var(--spacing-sm);display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:center}.full-notice-inline{display:inline-flex;align-items:center;gap:4px;padding:4px 12px;background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:#fff;border-radius:12px;font-size:.8rem;font-weight:600;box-shadow:0 2px 8px #ff6b6b4d;animation:pulseNoticeInline 2s infinite}@keyframes pulseNoticeInline{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.clubs-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl);animation:fadeInUp .6s ease-out .2s both}.error-state{text-align:center;padding:var(--spacing-2xl)}.error-title{font-family:var(--font-serif);font-size:2rem;color:var(--text-primary);margin-bottom:var(--spacing-md)}.error-text{font-size:1.125rem;color:var(--text-secondary);margin-bottom:var(--spacing-lg)}@media (max-width: 768px){.clubs-grid{grid-template-columns:1fr}.subject-header{padding:var(--spacing-lg)}.page-title{font-size:2rem}}.club-detail-page{padding-top:var(--spacing-xl)}.club-banner{background:linear-gradient(135deg,var(--club-color) 0%,rgba(139,69,19,.8) 100%);border-radius:var(--radius-xl);padding:var(--spacing-2xl);margin-bottom:var(--spacing-xl);box-shadow:var(--shadow-lg);animation:fadeInDown .6s ease-out}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.club-banner-content{text-align:center;color:#fff}.club-banner-icon{width:120px;height:120px;margin:0 auto var(--spacing-lg);background:#fff3;border-radius:50%;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.club-banner-title{font-family:var(--font-serif);font-size:2.5rem;font-weight:600;margin-bottom:var(--spacing-md)}.club-banner-tags{display:flex;justify-content:center;gap:var(--spacing-sm);flex-wrap:wrap}.tag{padding:6px 16px;background:#fff3;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.tag-full{background:linear-gradient(135deg,#ff6b6b,#ee5a5a);font-weight:600;box-shadow:0 2px 8px #ff6b6b66;animation:pulseTag 2s infinite}@keyframes pulseTag{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.full-badge{color:#ff6b6b;font-weight:600;font-size:.9rem}.club-info-card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl);box-shadow:var(--shadow-md);animation:fadeInUp .6s ease-out .2s both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-lg)}.info-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-md)}.info-icon{width:48px;height:48px;background:var(--club-color);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.info-content{display:flex;flex-direction:column;gap:4px}.info-label{font-size:.875rem;color:var(--text-secondary)}.info-value{font-size:1.125rem;font-weight:600;color:var(--text-primary)}.club-detail-content{display:flex;flex-direction:column;gap:var(--spacing-xl);margin-bottom:var(--spacing-xl);animation:fadeInUp .6s ease-out .3s both}.detail-section{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-xl);box-shadow:var(--shadow-md)}.section-title{font-family:var(--font-serif);font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:2px solid var(--bg-tertiary)}.section-text{font-size:1rem;line-height:1.8;color:var(--text-secondary)}.activity-list{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-sm)}.activity-item{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1rem;color:var(--text-secondary);padding:var(--spacing-sm) 0}.activity-bullet{width:8px;height:8px;background:var(--club-color);border-radius:50%;flex-shrink:0}.achievement-list{list-style:none;display:flex;flex-direction:column;gap:var(--spacing-sm)}.achievement-item{display:flex;align-items:center;gap:var(--spacing-sm);font-size:1rem;color:var(--text-secondary);padding:var(--spacing-sm) 0}.achievement-icon{color:#f39c12;flex-shrink:0}.club-action-bar{display:flex;justify-content:center;gap:var(--spacing-lg);padding:var(--spacing-xl);animation:fadeInUp .6s ease-out .4s both}.btn-back{background:var(--bg-tertiary);color:var(--text-primary);display:flex;align-items:center;gap:var(--spacing-xs);padding:12px 24px;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:all var(--transition-base);border:none}.btn-back:hover{background:var(--bg-secondary);box-shadow:var(--shadow-md);transform:translateY(-2px)}@media (max-width: 768px){.club-banner{padding:var(--spacing-lg)}.club-banner-icon{width:80px;height:80px}.club-banner-title{font-size:1.75rem}.info-grid{grid-template-columns:1fr}.club-action-bar{flex-direction:column;align-items:center}.btn-back,.btn-primary{width:100%;justify-content:center}}.voice-bubble{position:fixed;right:90px;bottom:90px;max-width:280px;min-width:200px;background:#fff;border-radius:20px;padding:16px 20px;box-shadow:0 8px 30px #00000026,0 0 0 1px #667eea1a;z-index:9997;cursor:pointer;animation:bubblePopIn .5s cubic-bezier(.68,-.55,.265,1.55);transition:all .3s ease}.voice-bubble:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 12px 40px #0003,0 0 0 1px #667eea33}.voice-bubble:after{content:"";position:absolute;bottom:-8px;right:20px;width:16px;height:16px;background:#fff;transform:rotate(45deg);box-shadow:-2px -2px 3px #0000000d}@keyframes bubblePopIn{0%{opacity:0;transform:scale(.3) translateY(20px)}70%{transform:scale(1.05) translateY(-3px)}to{opacity:1;transform:scale(1) translateY(0)}}.voice-bubble-content{display:flex;align-items:flex-start;gap:10px}.voice-bubble-icon{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px}.voice-bubble-text{flex:1;font-size:.9rem;color:#1e4663;line-height:1.5;text-align:left;word-break:break-word}.voice-bubble-hint{font-size:.7rem;color:#6a7f9a;margin-top:6px;text-align:right}.voice-float-btn{position:fixed;right:20px;bottom:20px;width:64px;height:64px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;box-shadow:0 8px 20px #667eea66;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s cubic-bezier(.68,-.55,.265,1.55);z-index:9998;border:none;outline:none}.voice-float-btn:hover{transform:scale(1.1) rotate(10deg);box-shadow:0 12px 28px #667eea80}.voice-float-btn:active{transform:scale(.95)}.voice-float-btn.open{background:linear-gradient(135deg,#f093fb,#f5576c);box-shadow:0 8px 20px #f5576c66}.float-icon{color:#fff;transition:all .3s}.voice-assistant-panel{position:fixed;right:20px;bottom:100px;width:360px;max-width:calc(100vw - 40px);max-height:calc(100vh - 120px);background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:20px;box-shadow:0 15px 50px #0000001f,0 0 0 1px #ffffff80;padding:16px;z-index:9999;animation:slideInRight .4s cubic-bezier(.68,-.55,.265,1.55);overflow:hidden;display:flex;flex-direction:column}@keyframes slideInRight{0%{opacity:0;transform:translate(100px) scale(.9)}to{opacity:1;transform:translate(0) scale(1)}}.voice-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid #eef2fc;position:relative}.voice-avatar-container{flex-shrink:0;width:50px;height:50px;border-radius:50%;overflow:hidden;box-shadow:0 3px 10px #667eea33;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center}.voice-avatar{width:100%;height:100%;object-fit:cover;animation:avatarFloat 3s ease-in-out infinite}@keyframes avatarFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.voice-title-area{flex:1;text-align:left}.voice-title{font-size:1rem;font-weight:700;color:#1e4663;margin-bottom:2px}.voice-subtitle{font-size:.7rem;color:#6a7f9a;line-height:1.3}.voice-close-btn{display:none}.voice-mic-container{display:flex;flex-direction:column;align-items:center;gap:8px;margin:10px 0}.voice-recommend-btn{padding:6px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:10px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 3px 10px #667eea4d}.voice-recommend-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 14px #667eea66}.voice-recommend-btn:active:not(:disabled){transform:translateY(0)}.voice-recommend-btn:disabled{background:#c0c8d0;cursor:not-allowed;opacity:.6}.voice-mic-btn{width:90px;height:90px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#fff,#eef2fc);border:none;box-shadow:0 10px 25px -8px #0003,0 0 0 5px #f0f5fd,0 0 0 8px #cbdbe0;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;outline:none}.voice-mic-btn:hover{transform:scale(1.05);box-shadow:0 18px 35px -8px #00000040,0 0 0 6px #f0f5fd,0 0 0 10px #cbdbe0}.voice-mic-btn:active{transform:scale(.98)}.voice-mic-btn.listening{background:radial-gradient(circle at 30% 30%,#ffd966,#ffb347);box-shadow:0 0 #ffb447b3;animation:pulseMic 1.3s infinite}.voice-mic-btn.listening .mic-icon{color:#2c3e2f;text-shadow:0 0 2px white}@keyframes pulseMic{0%{box-shadow:0 0 #ffb44799}70%{box-shadow:0 0 0 18px #ffb44700}to{box-shadow:0 0 #ffb44700}}.mic-icon{color:#1e4663;transition:all .2s}.voice-text-input-area{margin:10px 0}.voice-text-form{display:flex;gap:6px}.voice-text-input{flex:1;padding:8px 12px;border:2px solid #e0e8f0;border-radius:10px;font-size:.85rem;outline:none;transition:all .3s ease;background:#fff;color:#1e4663}.voice-text-input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.voice-text-input:disabled{background:#f5f7fa;cursor:not-allowed}.voice-submit-btn{padding:8px 16px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;white-space:nowrap}.voice-submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #667eea66}.voice-submit-btn:active:not(:disabled){transform:translateY(0)}.voice-submit-btn:disabled{background:#c0c8d0;cursor:not-allowed;opacity:.6}.voice-status-area{background:#eef3fc;border-radius:16px;padding:12px;margin:10px 0;min-height:60px;display:flex;flex-direction:column;justify-content:center}.voice-status-text{font-size:.85rem;font-weight:500;color:#1e4663;text-align:center;margin-bottom:8px;letter-spacing:.3px;line-height:1.4}.voice-feedback{display:flex;flex-direction:column;gap:6px}.voice-question{font-size:.8rem;background:#fff;border-radius:12px;padding:8px 12px;text-align:left;word-break:break-word;color:#2c4c6e;box-shadow:0 1px 3px #0000000d;border-left:4px solid #ffb347}.voice-answer{font-size:.8rem;background:#fefef5;border-radius:12px;padding:8px 12px;text-align:left;word-break:break-word;color:#2c4c6e;box-shadow:0 1px 3px #0000000d;border-left:4px solid #1e4663;position:relative}.voice-stop-btn{display:inline-block;margin-top:6px;padding:5px 10px;background:linear-gradient(135deg,#ff6b6b,#ee5a5a);color:#fff;border:none;border-radius:6px;font-size:.75rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #ff6b6b4d}.voice-stop-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #ff6b6b66}.voice-stop-btn:active{transform:translateY(0)}.voice-replay-btn{display:inline-block;margin-top:6px;padding:5px 10px;background:linear-gradient(135deg,#4caf50,#45a049);color:#fff;border:none;border-radius:6px;font-size:.75rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 8px #4caf504d;animation:pulseGlow 2s infinite}.voice-replay-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #4caf5066}.voice-replay-btn:active{transform:translateY(0)}@keyframes pulseGlow{0%,to{box-shadow:0 2px 8px #4caf504d}50%{box-shadow:0 4px 16px #4caf5080}}.voice-tips{font-size:.7rem;color:#6682a0;margin-top:10px;background:#eef3fc80;padding:8px 12px;border-radius:16px;text-align:center;line-height:1.5}.voice-tips span{font-weight:600;color:#1e4663}.voice-footer{margin-top:8px;font-size:.65rem;color:#6a89aa;text-align:center}@media (max-width: 480px){.voice-bubble{right:15px;bottom:90px;left:15px;max-width:none;min-width:auto}.voice-bubble:after{right:30px}.voice-float-btn{right:15px;bottom:15px;width:56px;height:56px}.voice-assistant-panel{right:15px;bottom:85px;width:calc(100vw - 30px);padding:14px}.voice-mic-btn{width:80px;height:80px}.voice-header{gap:10px;margin-bottom:10px;padding-bottom:8px}.voice-avatar-container{width:45px;height:45px}.voice-title{font-size:.95rem}.voice-subtitle{font-size:.65rem}}:root{--bg-primary: #F5F1EB;--bg-secondary: #FFFFFF;--bg-tertiary: #E8E4DE;--text-primary: #2C3E50;--text-secondary: #5D6D7E;--text-light: #AAB7B8;--accent-primary: #8B4513;--accent-hover: #A0522D;--accent-light: #D2691E;--subject-chinese: #C0392B;--subject-math: #2980B9;--subject-english: #27AE60;--subject-physics: #8E44AD;--subject-chemistry: #E67E22;--subject-biology: #16A085;--subject-history: #D35400;--subject-geography: #3498DB;--subject-politics: #9B59B6;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-hover: 0 12px 32px rgba(0, 0, 0, .15);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .2s ease;--transition-base: .3s ease;--transition-slow: .5s ease;--spacing-xs: 8px;--spacing-sm: 12px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--font-serif: "Georgia", "Times New Roman", "SimSun", serif;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.text-center{text-align:center}.text-serif{font-family:var(--font-serif)}a{text-decoration:none;color:inherit;transition:color var(--transition-fast)}a:hover{color:var(--accent-primary)}.btn{display:inline-block;padding:12px 24px;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:all var(--transition-base);border:none;outline:none}.btn-primary{background-color:var(--accent-primary);color:#fff}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.card{background:var(--bg-secondary);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden;transition:all var(--transition-base)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}@media (max-width: 768px){:root{--spacing-xl: 24px;--spacing-2xl: 32px}.container{padding:0 var(--spacing-md)}}.page-enter{opacity:0;transform:translateY(20px)}.page-enter-active{opacity:1;transform:translateY(0);transition:opacity var(--transition-slow),transform var(--transition-slow)}.page-exit{opacity:1}.page-exit-active{opacity:0;transition:opacity var(--transition-base)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-tertiary)}::-webkit-scrollbar-thumb{background:var(--accent-light);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-hover)}body{min-height:100vh}.page{flex:1;display:flex;flex-direction:column;padding:var(--spacing-2xl) 0;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.page-title{font-family:var(--font-serif);font-size:2.5rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-lg);text-align:center}.page-subtitle{font-size:1.125rem;color:var(--text-secondary);text-align:center;max-width:600px;margin:0 auto var(--spacing-2xl)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-xl)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-xl)}@media (max-width: 968px){.grid-3{grid-template-columns:repeat(2,1fr)}}@media (max-width: 640px){.grid-3,.grid-2{grid-template-columns:1fr}}.breadcrumb{display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl);font-size:.938rem;color:var(--text-secondary)}.breadcrumb a{color:var(--accent-primary);transition:color var(--transition-fast)}.breadcrumb a:hover{color:var(--accent-hover)}.breadcrumb-separator{color:var(--text-light)}.loading{display:flex;align-items:center;justify-content:center;min-height:400px;font-size:1.125rem;color:var(--text-secondary)}.empty-state{text-align:center;padding:var(--spacing-2xl);color:var(--text-secondary)}.empty-state-icon{font-size:4rem;margin-bottom:var(--spacing-md);opacity:.3}