.header{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;padding:12px 16px;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px #0000001a}.header-content{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.header-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}.logo-icon{font-size:1.8rem}.header-title{font-size:1.25rem;font-weight:600;margin:0}@media (max-width: 480px){.header-title{font-size:1.1rem}.logo-icon{font-size:1.5rem}}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fff;display:flex;justify-content:space-around;padding:8px 0;box-shadow:0 -2px 10px #0000001a;z-index:100;padding-bottom:max(8px,env(safe-area-inset-bottom))}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:var(--text-light);padding:4px 12px;border-radius:var(--radius-sm);transition:var(--transition);min-width:60px}.nav-item.active{color:var(--primary-color);background:#8b451314}.nav-icon{font-size:1.4rem}.nav-label{font-size:.75rem;font-weight:500}@media (min-width: 768px){.bottom-nav{position:static;box-shadow:none;border-top:1px solid var(--border-color);padding:12px 0}.nav-item{flex-direction:row;gap:8px;padding:8px 16px}.nav-label{font-size:.9rem}}.home{padding-bottom:80px}.hero{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;padding:48px 20px;text-align:center}.hero-title{font-size:2rem;font-weight:700;margin-bottom:12px}.hero-subtitle{font-size:1.1rem;opacity:.9;margin-bottom:24px}.hero-cta{font-size:1.1rem;padding:14px 32px}.stats-section{padding:24px 0}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat-card{background:#fff;border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow)}.stat-value{font-size:2rem;font-weight:700;color:var(--primary-color);margin-bottom:4px}.features-section{padding:24px 0}.section-title{font-size:1.4rem;font-weight:600;margin-bottom:20px;color:var(--text-primary)}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.feature-card{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;text-decoration:none;color:var(--text-primary);box-shadow:var(--shadow);transition:var(--transition)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.feature-icon{font-size:2.5rem;display:block;margin-bottom:12px}.feature-title{font-size:1.1rem;font-weight:600;margin-bottom:8px}.feature-desc{font-size:.9rem;color:var(--text-secondary)}.tips-section{padding:24px 0}.tips-list{display:flex;flex-direction:column;gap:12px}.tip-item{display:flex;align-items:flex-start;gap:12px;background:#fff;border-radius:var(--radius-sm);padding:16px;box-shadow:var(--shadow)}.tip-item p{margin:0;color:var(--text-secondary)}@media (max-width: 480px){.hero{padding:32px 16px}.hero-title{font-size:1.6rem}.stats-grid,.features-grid{grid-template-columns:1fr}}.course-list{padding:20px 0 80px}.stage-filter{display:flex;gap:8px;overflow-x:auto;padding-bottom:16px;margin-bottom:20px;-webkit-overflow-scrolling:touch}.stage-btn{padding:8px 16px;border:2px solid var(--border-color);border-radius:20px;background:#fff;color:var(--text-secondary);font-size:.9rem;font-weight:500;cursor:pointer;white-space:nowrap;transition:var(--transition)}.stage-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:#fff}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.course-card{background:#fff;border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--text-primary);box-shadow:var(--shadow);transition:var(--transition);display:flex;flex-direction:column}.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.course-card .course-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.course-card .course-duration{font-size:.85rem;color:var(--text-light)}.course-card .course-title{font-size:1.2rem;font-weight:600;margin-bottom:8px}.course-card .course-desc{font-size:.9rem;color:var(--text-secondary);margin-bottom:16px;flex:1}.course-tags{display:flex;flex-wrap:wrap;gap:6px}.course-tag{font-size:.8rem;padding:4px 10px;background:#8b451314;color:var(--primary-color);border-radius:12px}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;color:var(--text-secondary)}.loading-spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:16px}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 640px){.courses-grid{grid-template-columns:1fr}}.diagram-container{background:#fff;border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}.diagram-svg{width:100%;height:auto;max-width:100%}.diagram-svg .highlight{filter:drop-shadow(0 0 8px rgba(139,69,19,.5))}.diagram-svg .highlight ellipse{fill:gold}.diagram-legend{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;margin-top:10px;font-size:.8rem;color:var(--text-secondary, #666)}.diagram-legend span{display:inline-flex;align-items:center;gap:6px}.diagram-legend .dl-dot{display:inline-block;width:13px;height:13px;border-radius:50%}.diagram-legend .dl-root{background:#8b4513;border:2px solid #FFD700}.diagram-legend .dl-scale{background:#d2691e}.diagram-legend .dl-strings{color:#999}@media (max-width: 480px){.diagram-container{padding:12px}.diagram-title{font-size:1rem}}.sb-block{background:#fdfbf7;border:1px solid #f0ebe4;border-radius:10px;padding:12px 14px;margin:10px 0 6px}.sb-toolbar{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}.sb-play-btn{background:#8b4513;color:#fff;border:none;border-radius:8px;padding:9px 18px;font-size:.9rem;font-weight:600;cursor:pointer;transition:.2s}.sb-play-btn:hover{background:#6b3410}.sb-play-btn.playing{background:#b0413e}.sb-meta{font-size:.78rem;color:#999}.sb-tip{font-size:.86rem;color:#6b5d4d;line-height:1.6;margin:6px 0 8px}.sb-score{width:100%;min-height:60px;overflow-x:auto}.sb-score svg{max-width:100%}.sb-abc-fallback{font-size:.72rem;color:#999;background:#f7f3ec;padding:8px;border-radius:6px;overflow-x:auto}.sb-chips{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}.sb-chip{font-size:.72rem;padding:2px 7px;border-radius:8px;background:#f0ebe4;color:#8a7e6e;font-family:monospace;transition:all .12s}.sb-chip.active{background:#b0413e;color:#fff;transform:scale(1.18);box-shadow:0 2px 6px #b0413e66}.sb-chip.past{background:#8b45132e;color:#8b4513}.course-detail{padding:20px 0 80px}.diagrams-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}.diagram-item{min-width:0}.course-header{margin-bottom:24px}.course-meta{display:flex;gap:8px;align-items:center;margin-bottom:12px;flex-wrap:wrap}.course-duration{font-size:.9rem;color:var(--text-light)}.course-title{font-size:1.8rem;font-weight:700;margin-bottom:12px}.course-desc{font-size:1.1rem;color:var(--text-secondary)}.course-section{background:#fff;border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}.section-title{font-size:1.2rem;font-weight:600;margin-bottom:16px;color:var(--text-primary)}.tech-tags,.theory-tags{display:flex;flex-wrap:wrap;gap:8px}.tech-tag,.theory-tag{padding:6px 14px;border-radius:16px;font-size:.9rem;font-weight:500}.tech-tag{background:#8b45131a;color:var(--primary-color)}.theory-tag{background:#228b221a;color:var(--success-color)}.kp-list{display:flex;flex-direction:column;gap:12px}.kp-card{border:1px solid rgba(0,0,0,.06);border-radius:var(--radius-sm, 8px);padding:14px 16px;background:#fdfdfb}.kp-card.kp-theory{background:#228b2208}.kp-card.kp-tech{background:#8b451308}.kp-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:8px}.kp-summary{font-size:.95rem;font-weight:600;color:var(--text-primary);line-height:1.5}.kp-detail{margin:0;font-size:.92rem;line-height:1.8;color:var(--text-secondary);white-space:pre-line}.course-content{line-height:1.8;color:var(--text-secondary)}.course-content h3{color:var(--text-primary);margin:16px 0 8px;font-size:1.1rem}.course-content p{margin-bottom:12px}.course-content ol,.course-content ul{margin-left:20px;margin-bottom:12px}.course-content li{margin-bottom:6px}.practice-box{background:#8b45130d;border-left:4px solid var(--primary-color);padding:16px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.practice-box p{margin:0;color:var(--text-secondary)}.ex-list{display:flex;flex-direction:column;gap:14px}.ex-card{background:#fff;border:1px solid var(--border-color, #f0ebe4);border-radius:var(--radius-sm, 10px);padding:14px 16px}.ex-head{display:flex;align-items:center;gap:10px;margin-bottom:4px}.ex-index{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:#8b45131a;color:#8b4513;font-size:.8rem;font-weight:700;flex-shrink:0}.ex-title{font-weight:600;color:var(--text-primary, #333)}.tips-list{list-style:none;padding:0}.tips-list li{padding:8px 0 8px 24px;position:relative;color:var(--text-secondary)}.tips-list li:before{content:"•";position:absolute;left:8px;color:var(--primary-color);font-weight:700}.course-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.completed-badge{display:inline-flex;align-items:center;padding:12px 24px;background:#228b221a;color:var(--success-color);border-radius:var(--radius-sm);font-weight:500}.error-state{text-align:center;padding:60px 20px}.error-state p{font-size:1.2rem;color:var(--text-secondary);margin-bottom:20px}@media (max-width: 480px){.course-title{font-size:1.4rem}.course-actions{flex-direction:column}.course-actions .btn{width:100%}}.kp-scores{margin-top:12px;display:flex;flex-direction:column;gap:10px}.kp-score-title{font-size:.88rem;font-weight:700;color:#8b4513;margin-bottom:6px}.ex-fretboard{margin-top:12px}.ex-fretboard .diagram-container{max-width:420px;margin:0 auto;border:1px solid rgba(139,69,19,.14)}.practice{padding:20px 0 80px}.page-title{font-size:1.8rem;font-weight:700;margin-bottom:8px}.page-desc{color:var(--text-secondary);margin-bottom:24px}.recorder-section{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);text-align:center;margin-bottom:24px}.recorder-visual{margin-bottom:24px}.waveform{display:flex;justify-content:center;align-items:center;gap:4px;height:60px;margin-bottom:16px}.waveform span{display:block;width:4px;background:var(--primary-color);border-radius:2px;animation:wave .5s ease-in-out infinite}.waveform span:nth-child(1){animation-delay:0s}.waveform span:nth-child(2){animation-delay:.1s}.waveform span:nth-child(3){animation-delay:.2s}.waveform span:nth-child(4){animation-delay:.3s}.waveform span:nth-child(5){animation-delay:.4s}.waveform span:nth-child(6){animation-delay:.5s}.waveform span:nth-child(7){animation-delay:.6s}@keyframes wave{0%,to{height:20px}50%{height:50px}}.recording-time{font-size:2.5rem;font-weight:700;color:var(--primary-color);font-variant-numeric:tabular-nums}.recorder-controls{margin-bottom:24px}.record-btn,.stop-btn{display:inline-flex;align-items:center;gap:12px;padding:16px 40px;border:none;border-radius:50px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:var(--transition)}.record-btn{background:var(--primary-color);color:#fff}.record-btn:hover{background:var(--primary-dark);transform:scale(1.05)}.stop-btn{background:var(--error-color);color:#fff;animation:pulse 1.5s ease-in-out infinite}.stop-btn:hover{background:#8b0000}.record-icon,.stop-icon{font-size:1.5rem}.playback-section{border-top:1px solid var(--border-color);padding-top:24px}.playback-section h3{font-size:1.1rem;margin-bottom:16px;color:var(--text-secondary)}.audio-player{width:100%;margin-bottom:20px}.playback-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.error-message{background:#b222221a;color:var(--error-color);padding:12px 16px;border-radius:var(--radius-sm);margin-bottom:20px}.practice-tips{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.practice-tips h3{font-size:1.1rem;margin-bottom:16px}.practice-tips ul{list-style:none;padding:0}.practice-tips li{padding:8px 0 8px 24px;position:relative;color:var(--text-secondary)}.practice-tips li:before{content:"✓";position:absolute;left:0;color:var(--success-color);font-weight:700}@media (max-width: 480px){.recorder-section{padding:20px}.recording-time{font-size:2rem}.record-btn,.stop-btn{padding:14px 32px;font-size:1rem}}.analysis-result{padding:20px 0 80px}.score-card{background:#fff;border-radius:var(--radius);padding:32px;text-align:center;box-shadow:var(--shadow);margin-bottom:24px}.score-card.excellent{border-top:4px solid var(--success-color)}.score-card.good{border-top:4px solid var(--primary-color)}.score-card.fair{border-top:4px solid var(--warning-color)}.score-card.poor{border-top:4px solid var(--error-color)}.score-value{font-size:4rem;font-weight:700;line-height:1;margin-bottom:8px}.score-card.excellent .score-value{color:var(--success-color)}.score-card.good .score-value{color:var(--primary-color)}.score-card.fair .score-value{color:var(--warning-color)}.score-card.poor .score-value{color:var(--error-color)}.score-label{font-size:1.1rem;color:var(--text-secondary);margin-bottom:4px}.score-text{font-size:1.3rem;font-weight:600}.analysis-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-bottom:24px}.analysis-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.analysis-card h3{font-size:1.1rem;margin-bottom:16px}.analysis-score{display:flex;align-items:center;gap:12px;margin-bottom:16px}.score-bar{flex:1;height:8px;background:var(--border-color);border-radius:4px;overflow:hidden}.score-fill{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:4px;transition:width .5s ease}.score-number{font-weight:600;color:var(--primary-color);min-width:45px;text-align:right}.issues-list{display:flex;flex-direction:column;gap:8px}.issue-item{font-size:.9rem;color:var(--text-secondary);padding:8px 12px;background:#b222220d;border-radius:var(--radius-sm)}.suggestions-section{margin-bottom:24px}.suggestions-list{display:flex;flex-direction:column;gap:16px}.suggestion-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.suggestion-header{display:flex;gap:8px;align-items:center;margin-bottom:12px}.priority-tag{padding:4px 10px;border-radius:12px;font-size:.8rem;font-weight:500}.priority-高{background:#b222221a;color:var(--error-color)}.priority-中{background:#daa5201a;color:var(--warning-color)}.priority-低{background:#228b221a;color:var(--success-color)}.suggestion-area{font-size:.85rem;color:var(--text-light)}.suggestion-title{font-size:1.1rem;margin-bottom:8px}.suggestion-desc{color:var(--text-secondary);margin-bottom:12px}.exercises-list{background:#8b451308;padding:12px;border-radius:var(--radius-sm)}.exercises-list strong{display:block;margin-bottom:8px;color:var(--text-primary)}.exercises-list ul{margin-left:20px;color:var(--text-secondary)}.exercises-list li{margin-bottom:4px}.result-actions{display:flex;gap:12px;flex-wrap:wrap}@media (max-width: 480px){.score-value{font-size:3rem}.result-actions{flex-direction:column}.result-actions .btn{width:100%}}.progress-page{padding:20px 0 80px}.stats-overview{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}.stat-item{background:#fff;border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow)}.stat-number{font-size:2rem;font-weight:700;color:var(--primary-color);margin-bottom:4px}.stat-label{font-size:.9rem;color:var(--text-secondary)}.overall-progress{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:24px}.progress-header{display:flex;justify-content:space-between;margin-bottom:12px;font-weight:500}.stages-progress{margin-bottom:24px}.stage-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:12px}.stage-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.stage-title{font-size:1.1rem;font-weight:600;margin-bottom:4px}.stage-desc{font-size:.9rem;color:var(--text-secondary)}.stage-percentage{font-size:1.3rem;font-weight:700;color:var(--primary-color)}.stage-stats{margin-top:8px;font-size:.85rem;color:var(--text-light)}.completed-section{margin-bottom:24px}.completed-list{display:flex;flex-direction:column;gap:8px}.completed-item{display:flex;align-items:center;gap:12px;background:#fff;border-radius:var(--radius-sm);padding:12px 16px;text-decoration:none;color:var(--text-primary);box-shadow:var(--shadow);transition:var(--transition)}.completed-item:hover{transform:translate(4px)}.completed-icon{width:24px;height:24px;background:var(--success-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;flex-shrink:0}.completed-title{flex:1;font-weight:500}.completed-stage{font-size:.85rem;color:var(--text-light)}.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.tip-card{display:flex;align-items:center;gap:12px;background:#fff;border-radius:var(--radius-sm);padding:16px;box-shadow:var(--shadow)}.tip-icon{font-size:1.5rem;flex-shrink:0}.tip-card p{margin:0;font-size:.9rem;color:var(--text-secondary)}@media (max-width: 640px){.stats-overview,.tips-grid{grid-template-columns:1fr}}.audio-demo{margin-top:12px}.audio-play-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border:2px solid var(--primary-color);border-radius:25px;background:#fff;color:var(--primary-color);font-size:.95rem;font-weight:600;cursor:pointer;transition:var(--transition)}.audio-play-btn:hover{background:var(--primary-color);color:#fff}.audio-play-btn.playing{background:var(--error-color);border-color:var(--error-color);color:#fff;animation:pulse 1s ease-in-out infinite}.audio-desc{margin-top:8px;font-size:.85rem;color:var(--text-light)}.chord-diagram{display:inline-flex;flex-direction:column;align-items:center;margin:8px}.chord-name{font-size:1.2rem;font-weight:700;color:var(--primary-color);margin-bottom:4px}.chord-svg{width:120px;height:auto}@media (max-width: 480px){.chord-svg{width:100px}.chord-name{font-size:1rem}}.staff-diagram-container{background:#fff;border-radius:var(--radius);padding:20px;margin-bottom:20px;box-shadow:var(--shadow)}.diagram-title{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:16px;text-align:center}.staff-svg{width:100%;height:auto;max-width:100%}.staff-notes-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:16px}@media (max-width: 640px){.staff-notes-list{grid-template-columns:1fr}}.theory-page{padding:20px 0 80px}.theory-nav{display:flex;gap:8px;overflow-x:auto;padding-bottom:16px;margin-bottom:20px;-webkit-overflow-scrolling:touch}.theory-nav-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:12px 16px;border:2px solid var(--border-color);border-radius:var(--radius);background:#fff;cursor:pointer;transition:var(--transition);min-width:80px}.theory-nav-btn.active{border-color:var(--primary-color);background:#8b45130d}.nav-icon{font-size:1.5rem}.nav-text{font-size:.85rem;font-weight:500;color:var(--text-secondary)}.theory-nav-btn.active .nav-text{color:var(--primary-color)}.theory-content h2{font-size:1.5rem;margin-bottom:20px}.theory-card{background:#fff;border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}.theory-card h3{font-size:1.2rem;margin-bottom:12px;color:var(--primary-color)}.theory-card p{color:var(--text-secondary);margin-bottom:12px}.theory-card ul{margin-left:20px;color:var(--text-secondary)}.theory-card li{margin-bottom:8px}.note-list{display:grid;grid-template-columns:repeat(7,1fr);gap:8px;margin-top:12px}.note-item{text-align:center;padding:12px 8px;background:#8b45130d;border-radius:var(--radius-sm);display:flex;flex-direction:column;align-items:center;gap:4px}.note-name{display:block;font-size:1.3rem;font-weight:700;color:var(--primary-color)}.note-solfa{display:block;font-size:.9rem;color:var(--text-secondary)}.audio-examples{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border-color)}.audio-examples .audio-demo{margin-top:0}.tuning-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.tuning-item{display:flex;align-items:center;gap:16px;padding:10px 12px;background:#8b451308;border-radius:var(--radius-sm)}.string-num{font-weight:600;min-width:40px}.string-note{font-size:1.2rem;font-weight:700;color:var(--primary-color);min-width:50px}.string-freq{color:var(--text-light);font-size:.9rem}.formula{background:#8b45130d;padding:12px 16px;border-radius:var(--radius-sm);font-family:monospace;font-size:1rem;color:var(--primary-color);margin:12px 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.page-title{font-size:1.8rem;font-weight:700;margin-bottom:8px}.plugins-page .page-desc{color:var(--text-secondary);margin-bottom:24px}.plugins-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-bottom:24px}.plugin-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:var(--transition)}.plugin-card:hover{box-shadow:var(--shadow-lg)}.plugin-card.disabled,.plugin-card.locked{opacity:.85}.plugin-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}.plugin-icon{font-size:2rem}.plugin-title{flex:1}.plugin-title h3{font-size:1.1rem;font-weight:600}.plugin-version{font-size:.8rem;color:var(--text-light)}.plugin-badge{padding:4px 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rgba(34,139,34,.3)}.plugin-message.error{background:#c8323214;color:#c83232;border:1px solid rgba(200,50,50,.3)}.plugin-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.plugin-btn{padding:9px 16px;border-radius:8px;border:none;font-size:.9rem;font-weight:600;cursor:pointer;transition:var(--transition)}.plugin-btn:disabled{opacity:.6;cursor:not-allowed}.plugin-btn.primary{background:var(--primary-color, #8B4513);color:#fff}.plugin-btn.primary:hover:not(:disabled){background:#6b3410}.plugin-btn.buy{background:linear-gradient(135deg,#b0413e,#8b4513);color:#fff;flex:1}.plugin-btn.buy:hover:not(:disabled){filter:brightness(1.1)}.plugin-btn.ghost{background:transparent;border:1px solid var(--border-color, #e0d8cc);color:var(--text-secondary, #666)}.plugin-btn.ghost:hover{background:#00000008}.plugin-back-btn{background:#fff;border:1px solid var(--border-color, #e0d8cc);border-radius:8px;padding:8px 16px;font-size:.9rem;cursor:pointer;margin-bottom:16px;color:var(--text-secondary, 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