:root{--tang-paper: #F9F7F2;--tang-paper-dark: #E5E0D6;--bg-canvas: var(--tang-paper);--bg-surface: #FFFFFF;--card-bg: #FFFFFF;--card-bg-elevated: #FAFAF6;--tang-ink: #2B2B2B;--tang-red: #991B1B;--tang-red-light: #FEF2F2;--tang-jade: #065F46;--success-container: #dcfce7;--tang-gold: #FFD700;--ink: var(--tang-ink);--ink-light: #4B5563;--ink-faint: #9CA3AF;--ink-wash: rgba(43, 43, 43, .6);--lantern-bg: #1B1F3B;--lantern-text: #F2D0A4;--shadow-tang: 0 8px 16px -4px rgba(0, 0, 0, .1);--shadow-tang-lg: 0 12px 24px -10px rgba(0, 0, 0, .2);--shadow-tang-hover: 0 20px 40px -10px rgba(0, 0, 0, .25);--primary: var(--tang-red);--primary-glow: rgba(153, 27, 27, .3);--primary-container: #fee2e2;--accent: var(--tang-gold);--success: var(--tang-jade);--danger: #DC2626;--text-primary: var(--ink);--text-secondary: var(--ink-wash);--app-font: "KaiTi", "STKaiti", "楷体", "STKaiti", serif;--pinyin-font: "Ubuntu", sans-serif;--surface-variant: #f3f4f6;--outline-variant: #e5e7eb;--texture-paper: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E");--scholar-radius: 8px}html{height:100%;background-color:var(--bg-canvas)}body{font-family:var(--app-font);background-color:var(--bg-canvas);background-image:var(--texture-paper);color:var(--text-primary);margin:0;padding:0;width:100%;display:flex;flex-direction:column;align-items:center;height:100vh;height:100dvh;overflow:hidden;user-select:none;-webkit-user-select:none;touch-action:manipulation}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}@media(hover:hover)and (pointer:fine){::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent;margin:4px 0}::-webkit-scrollbar-thumb{background-color:#a93226;border-radius:10px;border:2px solid var(--tang-paper, #F9F7F2)}::-webkit-scrollbar-thumb:hover{background-color:#d4af37}*{scrollbar-width:thin;scrollbar-color:#A93226 transparent}}@media(hover:none)and (pointer:coarse){*::-webkit-scrollbar{display:none;width:0;height:0}*{scrollbar-width:none}*{-ms-overflow-style:none}button,a,input,select,textarea{touch-action:manipulation}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.starry-bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:hidden;background-color:transparent;background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23D4AF37' fill-opacity='0.06'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}#particle-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:10;pointer-events:none}.stars-1,.stars-2,.stars-3{display:none}#start-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-canvas);z-index:2000;display:flex;flex-direction:column;align-items:center;padding:20px;padding-bottom:calc(80px + env(safe-area-inset-bottom,0px));box-sizing:border-box;transition:opacity .3s ease;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch}.game-stage{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;width:100%;max-width:100%;margin:0 auto;position:relative;padding:10px 20px calc(100px + env(safe-area-inset-bottom,0px));gap:15px;overflow-y:auto;overflow-x:hidden;box-sizing:border-box;min-height:0;-webkit-overflow-scrolling:touch}.game-stage.hidden{display:none!important}#main-header{width:100%;max-width:600px;display:flex;grid-template-columns:1fr auto 1fr;align-items:center;padding:8px 20px;z-index:100}@media(max-width:600px){#main-header{padding:6px 15px}}.hidden{display:none!important}.dashboard-header{position:relative;width:100%;max-width:600px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:10px 20px;box-sizing:border-box;background:transparent;border-bottom:1px solid rgba(169,50,38,.15);z-index:2010;font-family:var(--app-font)}.header-left,.header-stats{flex:1;display:flex;align-items:center}.header-stats{justify-content:flex-end;gap:8px}.app-title{flex:2;font-size:clamp(1.4rem,6vw,2.2rem);color:var(--ink);margin:0;font-weight:900;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.header-left{display:flex;align-items:center;gap:16px;flex:1}.player-avatar{width:40px;height:40px;border-radius:50%;background:var(--tang-red-light);border:2px solid var(--tang-red);background-image:url(/avatars.webp);background-size:800% 800%;background-position:0 0;cursor:pointer;box-shadow:0 2px 8px #c4403233;transition:transform .2s cubic-bezier(.175,.885,.32,1.275)}.player-avatar:hover{transform:scale(1.1) rotate(5deg)}.header-back-btn{background:transparent;border:none;color:var(--ink-wash);font-size:1.4rem;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;opacity:0;pointer-events:none}.header-back-btn:hover{color:var(--ink);background:#0000000d}.header-back-btn:active{transform:scale(.95)}.stat-pill{display:flex;align-items:center;gap:4px;padding:4px 8px;background:transparent;border:none;font-size:1.1rem;font-weight:700;color:var(--ink);box-shadow:none}.stat-pill svg,.score-box svg{filter:drop-shadow(0 1px 1px rgba(0,0,0,.1))}@media(max-width:600px){.dashboard-header{padding:8px 15px}.player-avatar{width:36px;height:36px}.app-title{font-size:clamp(1.2rem,5vw,1.8rem)}.stat-pill{font-size:1rem;padding:4px 6px}}.tab-bar{position:fixed;bottom:0;left:0;right:0;width:100%;background:#fffefafa;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid rgba(169,50,38,.15);display:flex;justify-content:center;padding:8px 0 max(8px,env(safe-area-inset-bottom,8px));min-height:calc(60px + env(safe-area-inset-bottom,0px));z-index:2010;box-shadow:0 -2px 8px #0000000d;font-family:var(--app-font);box-sizing:border-box}.tab-bar-inner{display:flex;justify-content:space-between;align-items:center;width:100%;max-width:600px;padding:0 20px;box-sizing:border-box}.tab-item{background:none;border:none;display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--ink-light);cursor:pointer;flex:1;transition:all .2s ease;padding:8px;border-radius:var(--scholar-radius)}.tab-item.active{color:#a93226;background-color:#a9322614}.tab-icon{font-size:1.5rem;transition:transform .3s cubic-bezier(.175,.885,.32,1.275)}.tab-icon svg{width:24px;height:24px;display:block}.tab-item.active .tab-icon{transform:translateY(-4px) scale(1.1)}.tab-item.active svg{stroke:var(--tang-red);stroke-width:2.5px}.tab-label{font-size:.8rem;font-weight:500;letter-spacing:.5px}.version-tag-bottom{position:absolute;bottom:80px;width:100%;text-align:center;color:var(--ink-faint);font-size:.8rem;pointer-events:none}.lesson-card{position:relative;width:100%;max-width:500px;height:64px;padding:0 16px;margin:0 auto 8px;background-color:#fffefa;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.08'/%3E%3C/svg%3E");border:1px solid #E5E0D8;border-left:4px solid var(--tang-red);border-radius:var(--scholar-radius);box-shadow:0 4px 6px #a932260d;display:flex;align-items:center;gap:20px;cursor:pointer;transition:all .2s ease;overflow:hidden;box-sizing:border-box}.lesson-card:hover{box-shadow:0 6px 12px #a9322614;transform:translateY(-2px);background-color:#fdfcf7}.lesson-card.active,.lesson-card:active{background-color:#f9f7f0;box-shadow:inset 0 2px 4px #0000000d;transform:translateY(0)}.writing-card{background:var(--card-bg);border-radius:var(--scholar-radius);border:1px solid var(--tang-paper-dark);padding:20px;width:100%;max-width:360px;min-height:380px;box-shadow:0 8px 32px #0000004d;touch-action:auto}@media(max-width:600px){.writing-card{min-height:320px}}@media(max-width:360px){.writing-card{min-height:280px}}.summary-card{background:var(--card-bg);border-radius:var(--scholar-radius);padding:24px;text-align:center;box-shadow:var(--shadow-tang-lg);border:1px solid var(--tang-paper-dark);width:100%;max-width:400px;position:relative;overflow:hidden;margin-bottom:20px}.lesson-group{width:100%;max-width:500px;margin:0 auto 12px}.lesson-group-header{position:relative;width:100%;height:64px;padding:0 16px;background-color:#fffefa;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.08'/%3E%3C/svg%3E");border:1px solid #E5E0D8;border-left:4px solid var(--tang-red);border-radius:var(--scholar-radius);box-shadow:0 4px 6px #a932260d;display:flex;align-items:center;justify-content:space-between;cursor:pointer;transition:all .2s ease;box-sizing:border-box}.lesson-group-header:hover{box-shadow:0 6px 12px #a9322614;transform:translateY(-2px);background-color:#fdfcf7}.lesson-group-header.expanded{border-bottom-left-radius:0;border-bottom-right-radius:0}.lesson-group-title-section{display:flex;align-items:center;gap:12px;flex:1;min-width:0}.lesson-group-title{font-family:var(--app-font);font-size:1.1rem;font-weight:600;color:var(--tang-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lesson-group-count{font-size:.85rem;color:var(--tang-ink-light);white-space:nowrap}.lesson-group-chevron{width:20px;height:20px;color:var(--tang-red);transition:transform .3s cubic-bezier(.4,0,.2,1);flex-shrink:0}.lesson-group-header.expanded .lesson-group-chevron{transform:rotate(180deg)}.lesson-group-content{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1),padding .4s cubic-bezier(.4,0,.2,1);background:#f9f7f0;border:1px solid #E5E0D8;border-top:none;border-bottom-left-radius:var(--scholar-radius);border-bottom-right-radius:var(--scholar-radius);padding:0 8px}.lesson-group-content.expanded{max-height:1000px;padding:8px}.lesson-group-content .lesson-card{border-left-color:var(--tang-gold);border-left-width:3px;background-color:#fff}.lesson-group-content .lesson-card:hover{background-color:#fdfcf7}.action-btn-large{width:100%;padding:16px 24px;font-size:1.2rem;font-family:"KaiTi",var(--app-font),serif;background:linear-gradient(135deg,var(--tang-red),#8b2820);color:#fff;border:none;border-radius:var(--scholar-radius);cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);box-shadow:0 4px 16px #a932264d;font-weight:500}.action-btn-large:hover{transform:translateY(-2px);box-shadow:0 6px 24px #a9322666}.action-btn-large:active{transform:translateY(1px);box-shadow:0 2px 8px #a932264d}.action-btn-primary{display:inline-block;padding:12px 24px;background:var(--tang-red);color:#fff;border:none;border-radius:var(--scholar-radius);font-size:1rem;font-family:"KaiTi",var(--app-font),serif;cursor:pointer;transition:all .2s}.action-btn-primary:active{transform:scale(.95)}.action-btn-secondary{display:inline-block;padding:12px 24px;background:transparent;color:var(--ink);border:1px solid var(--tang-paper-dark);border-radius:var(--scholar-radius);font-size:1rem;font-family:"KaiTi",var(--app-font),serif;cursor:pointer;transition:all .2s}.tool-btn{background:transparent;border:none;font-size:1.5rem;padding:10px 14px;border-radius:var(--scholar-radius);cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);min-width:48px;min-height:48px;display:flex;align-items:center;justify-content:center}.tool-btn:hover{background:var(--surface-variant)}.tool-btn:active{transform:scale(.92)}.menu-btn{background:transparent;border:none;color:var(--ink-wash);font-size:1.2rem;width:48px;height:48px;border-radius:50%;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);flex-shrink:0;display:flex;align-items:center;justify-content:center}.menu-btn:hover{color:var(--ink);background:#0000000d;transform:scale(1.05)}.menu-btn:active{transform:scale(.95)}.mode-options{display:flex;flex-direction:column;gap:12px}.mode-btn{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-radius:var(--scholar-radius);font-family:"KaiTi",var(--app-font),serif;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);border:2px solid transparent;text-align:left}.mode-btn-content{display:flex;align-items:center;gap:12px}.mode-btn-icon{font-size:1.8rem;flex-shrink:0}.mode-btn-text{display:flex;flex-direction:column}.mode-btn-title{font-weight:600;font-size:1.1rem;margin-bottom:2px}.mode-btn-desc{font-size:.85rem;opacity:.7}.mode-btn-arrow{opacity:.4;font-size:1.2rem;transition:transform .2s}.mode-btn-primary{background:linear-gradient(135deg,var(--tang-red),#a83228);color:#fff;box-shadow:0 4px 12px #c4403240}.mode-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #c4403259}.mode-btn-primary:hover .mode-btn-arrow{transform:translate(4px)}.mode-btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px #c4403240}.mode-btn-secondary{background:#fff;color:var(--tang-ink);border:2px solid var(--tang-paper-dark)}.mode-btn-secondary:hover{background:var(--tang-paper);border-color:var(--tang-ink-light);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.mode-btn-secondary:hover .mode-btn-arrow{transform:translate(4px)}.mode-btn-secondary:active{transform:translateY(0);box-shadow:0 2px 6px #0000000f}.text-btn{background:transparent;border:none;color:var(--tang-ink-light);padding:12px 16px;font-family:"KaiTi",var(--app-font),serif;font-size:1rem;cursor:pointer;transition:all .2s;border-radius:var(--scholar-radius);min-height:48px}.text-btn:hover{color:var(--tang-ink);background:#0000000d}.text-btn:active{transform:scale(.97)}@media(max-width:600px){.action-btn-primary,.action-btn-secondary{min-height:48px;padding:14px 20px}.mode-btn{min-height:72px}.action-btn-large{min-height:52px;padding:16px 20px}}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;backdrop-filter:blur(4px);z-index:3000;display:flex;justify-content:center;align-items:center;opacity:0;pointer-events:none;transition:opacity .3s ease}.modal-overlay.show{opacity:1;pointer-events:auto}.modal-content{background:var(--bg-canvas);border:1px solid var(--tang-paper-dark);border-radius:var(--scholar-radius);padding:24px;width:90%;max-width:400px;box-shadow:var(--shadow-tang-lg);transform:translateY(20px);transition:transform .3s cubic-bezier(.175,.885,.32,1.275);display:flex;flex-direction:column;align-items:center;gap:15px;position:relative}.modal-overlay.show .modal-content{transform:translateY(0)}.modal-title{color:var(--tang-ink);font-family:var(--font-serif);font-size:1.3rem;font-weight:600;text-align:center;margin:0 0 20px;width:100%}.avatar-selector-card h2{color:var(--ink);margin:0 0 15px;font-size:1.5rem}.menu-card h2{color:var(--tang-red);margin-bottom:20px}.menu-actions{display:flex;flex-direction:column;gap:12px;width:100%}.menu-actions button{width:100%}.modal-actions{display:flex;justify-content:center;gap:15px;margin-top:25px}.modal-actions button{padding:10px 24px;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease}.modal-actions button:not(.text-btn):first-child{background:var(--tang-red);color:var(--tang-paper);border:none;box-shadow:0 4px 6px #c4403233}.modal-actions button:not(.text-btn):first-child:hover{background:var(--tang-red-dark);transform:translateY(-1px);box-shadow:0 6px 8px #c440324d}.modal-actions button:not(.text-btn):last-child,.modal-actions button.secondary-btn{background:transparent;color:var(--tang-ink-light);border:1px solid var(--tang-ink-light);box-shadow:none}.modal-actions button:not(.text-btn):last-child:hover,.modal-actions button.secondary-btn:hover{background:#0000000d;color:var(--tang-ink);border-color:var(--tang-ink)}.result-card .result-title{font-family:var(--font-serif);color:var(--tang-ink);margin-bottom:.5rem}.result-card .result-message{color:var(--tang-ink-light)}.modal-back-btn{position:absolute;top:16px;left:16px;background:transparent;border:none;color:var(--tang-ink-light);font-size:1.5rem;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease;z-index:1}.modal-back-btn:hover{color:var(--tang-ink);background:#0000000d}.modal-back-btn:active{transform:scale(.95)}.complete-card{background:var(--card-bg);border-radius:var(--scholar-radius);padding:24px;text-align:center;box-shadow:var(--shadow-tang-lg);border:1px solid var(--tang-paper-dark);width:100%;max-width:400px;position:relative;overflow:hidden;display:flex;flex-direction:column;gap:16px}.complete-card h2{font-size:2rem;color:var(--tang-gold);margin:0;font-family:var(--font-serif)}.complete-stats{display:flex;justify-content:center;gap:30px;flex-wrap:wrap;margin:16px 0}.complete-stats .stat-item{display:flex;flex-direction:column;align-items:center;gap:8px}.complete-stats .stat-value{font-size:2.5rem;font-weight:700;color:var(--tang-red);line-height:1}.complete-stats .stat-label{font-size:.9rem;color:var(--tang-ink-light);font-weight:500}.complete-time{font-size:1rem;color:var(--tang-ink-light);margin:8px 0}.complete-actions{display:flex;flex-direction:column;gap:12px;margin-top:16px;width:100%}.complete-actions button{width:100%}.result-score-large{font-size:3rem;font-weight:700;color:var(--tang-ink);line-height:1;margin:8px 0}.result-percentage{font-size:2rem;font-weight:600;color:var(--tang-red);margin-bottom:8px}@media(max-width:600px){.modal-content{width:95%;max-width:95%;padding:20px;max-height:90vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.complete-card{width:95%;max-width:95%;padding:20px 16px;max-height:85vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.complete-card h2{font-size:1.75rem}.complete-stats{gap:20px;margin:12px 0}.complete-stats .stat-value{font-size:2.2rem}.complete-stats .stat-label{font-size:.85rem}.result-score-large{font-size:2.5rem}.result-percentage{font-size:1.75rem}.complete-actions{gap:10px;margin-top:12px;padding-bottom:8px}.modal-actions{flex-wrap:wrap;margin-top:16px;gap:10px}.modal-actions button{min-width:120px;flex:1 1 auto}}@media(max-width:380px){.modal-content,.complete-card{padding:16px 12px;max-height:88vh}.complete-card h2{font-size:1.5rem}.complete-stats .stat-value{font-size:2rem}.result-score-large{font-size:2.2rem}.result-percentage{font-size:1.5rem}}.tabbed-nav-container{display:flex;flex-direction:column;height:100%;width:100%}.tabs-container{flex-shrink:0;background:var(--tang-paper);border-bottom:2px solid var(--tang-paper-dark);padding:0 16px}.tabs-wrapper{position:relative;display:flex;gap:0;max-width:600px;margin:0 auto}.tab-item{flex:1;padding:12px 20px;background:transparent;border:none;font-family:var(--app-font);font-size:1.1rem;font-weight:600;color:var(--ink-light);cursor:pointer;transition:all .2s ease;position:relative;white-space:nowrap;border-radius:var(--scholar-radius) var(--scholar-radius) 0 0;box-sizing:border-box}.tab-item+.tab-item{margin-left:8px}.tab-item:hover{color:var(--tang-ink);background:#a932260d}.tab-item.active{color:var(--tang-red);font-weight:700;background:#a9322614}.tab-indicator{position:absolute;bottom:0;left:0;height:3px;background:var(--tang-red);box-shadow:0 1px 4px #a9322666;border-radius:3px 3px 0 0;transition:transform .3s cubic-bezier(.4,0,.2,1),width .3s cubic-bezier(.4,0,.2,1)}.tab-content-container{flex:1;overflow-y:auto;overflow-x:hidden;position:relative;touch-action:pan-y}.tab-content-enter{animation:slideInFromRight .3s ease-out}.tab-content-exit{animation:slideOutToLeft .3s ease-out}@keyframes slideInFromRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes slideOutToLeft{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-20px)}}@media(max-width:480px){.tabs-container{padding:0 12px}.tab-item{padding:10px 14px;font-size:1rem}}.tab-item:active{transform:scale(.98)}.tab-item:focus{outline:2px solid var(--tang-red);outline-offset:-2px}.tab-item:focus:not(:focus-visible){outline:none}.tabbed-nav-container.hide-tabs .tabs-container,.tabs-container.hidden{display:none!important}.hud{width:100%;padding:12px 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12px;border-radius:var(--scholar-radius);font-weight:600;font-size:.9rem;transform:scale(0);transition:transform .4s;box-shadow:0 2px 6px #ff6b6b33}.streak-badge.active{transform:scale(1)}.character-container{display:flex;gap:15px;flex-wrap:wrap;justify-content:center;margin:20px 0;padding:10px;touch-action:auto}.char-box{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;flex-shrink:0;justify-content:center}.char-slot{width:min(240px,60vw);height:min(240px,60vw);max-width:280px;max-height:280px;background:var(--bg-canvas);background-image:var(--texture-paper);border:2px solid var(--tang-gold);border-radius:var(--scholar-radius);position:relative;box-shadow:0 4px 12px #0000001a;display:flex;justify-content:center;align-items:center;overflow:hidden;touch-action:none}.char-slot.loading{background:linear-gradient(90deg,var(--bg-canvas) 25%,#f0f0f0 50%,var(--bg-canvas) 75%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}.char-slot.grid-tian:before,.char-slot.grid-mi:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(180,83,9,.2) 1px,transparent 1px),linear-gradient(90deg,rgba(180,83,9,.2) 1px,transparent 1px);background-size:50% 50%;background-position:center;pointer-events:none;z-index:4}.char-slot.grid-tian:after{content:"";position:absolute;inset:0;pointer-events:none;z-index:5}.char-slot.grid-mi:after{content:"";position:absolute;inset:0;background:linear-gradient(45deg,transparent 49.5%,rgba(180,83,9,.1) 49.5%,rgba(180,83,9,.1) 50.5%,transparent 50.5%),linear-gradient(-45deg,transparent 49.5%,rgba(180,83,9,.1) 49.5%,rgba(180,83,9,.1) 50.5%,transparent 50.5%);pointer-events:none;z-index:5}.char-slot.grid-blank:before,.char-slot.grid-blank:after{display:none}.char-slot svg{background:transparent!important;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:1}.spelling-hidden{display:none!important}.spelling-active{display:flex!important}.char-slot.active{border-color:var(--tang-gold);box-shadow:0 0 0 3px #b4530926;animation:gentle-pulse 2s infinite}.char-slot.success{border-color:var(--success);box-shadow:0 0 0 3px #065f4626;animation:none}.char-slot.shake{border-color:var(--danger);animation:shake .4s both}.pinyin-display-large{font-size:2rem;color:var(--tang-red);margin-bottom:8px;font-weight:500;text-align:center;font-family:var(--pinyin-font);white-space:pre-wrap;word-wrap:break-word;overflow-wrap:break-word;max-width:100%;line-height:1.4}.definition-display{color:var(--ink-wash);font-size:1.1rem;text-align:center;margin-bottom:20px}.char-pinyin-label{font-size:clamp(1.2rem,3vw,1.6rem);color:var(--link-light);margin-top:8px;font-family:var(--pinyin-font)}.reveal-pinyin{font-family:var(--pinyin-font)}.footer-progress{position:fixed;bottom:0;left:0;width:100%;height:50px;background:#0f172af2;backdrop-filter:blur(10px);display:flex;justify-content:center;align-items:center;gap:8px;z-index:100;border-top:1px solid rgba(255,255,255,.1);padding:0 20px;overflow-x:auto}.progress-dot{width:12px;height:12px;border-radius:50%;background:#334155;border:2px solid rgba(255,255,255,.05);flex-shrink:0;transition:all .3s}.progress-dot.active{background:#f1f5f9;transform:scale(1.2)}.progress-dot.correct{background:#22c55e;border-color:#22c55e}.progress-dot.wrong{background:#ef4444;border-color:#ef4444}#feedback-overlay{position:absolute;top:40%;left:50%;transform:translate(-50%,-50%);font-size:3rem;font-weight:700;text-shadow:0 5px 15px rgba(0,0,0,.5);pointer-events:none;opacity:0;transition:opacity .3s;z-index:100;text-align:center;width:100%}.success-stamp{position:absolute;bottom:8px;right:8px;transform:scale(5);width:80px;height:80px;opacity:0;pointer-events:none;z-index:10}.success-stamp.show{opacity:1;transform:scale(1);animation:stamp-slam .4s forwards}.stamp-rect{fill:none;stroke:var(--tang-red);stroke-width:2}.stamp-text{fill:var(--tang-red);font-size:40px;font-weight:700;text-anchor:middle;dominant-baseline:middle}.session-complete{text-align:center;padding:20px;max-width:400px;margin:0 auto;width:100%;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow-y:auto;-webkit-overflow-scrolling:touch;box-sizing:border-box}.session-complete h2{font-size:2rem;color:var(--gold)}.session-stats{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-bottom:20px}.stat-value{font-size:1.8rem;color:var(--primary)}.bottom-action-area{display:flex;justify-content:center;align-items:center;width:100%;padding:16px 20px;box-sizing:border-box}#next-btn{min-height:48px;padding:12px 32px;font-size:1.1rem}.level-up-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0f172ae6;display:flex;align-items:center;justify-content:center;z-index:3000}.level-up-level{font-size:3rem;color:#fff;text-shadow:0 0 20px rgba(251,191,36,.5)}@media(max-width:600px){.session-complete{padding:16px;max-width:95%;min-height:100%;padding-bottom:calc(20px + env(safe-area-inset-bottom,0px))}.session-complete h2{font-size:1.75rem}.session-stats{gap:16px;margin-bottom:16px}.stat-value{font-size:1.6rem}.bottom-action-area{padding:12px 16px calc(20px + env(safe-area-inset-bottom,0px));position:sticky;bottom:0;background:linear-gradient(to bottom,transparent 0%,var(--bg-canvas) 20%);padding-top:32px}#next-btn{width:100%;max-width:400px;min-height:52px;font-size:1.15rem}}@media(max-height:700px){.modal-content{max-height:85vh;overflow-y:auto;-webkit-overflow-scrolling:touch}}@media(max-height:600px){.modal-content{max-height:90vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.complete-card{max-height:88vh;overflow-y:auto}}@keyframes shake{10%,90%{transform:translate3d(-1px,0,0)}20%,80%{transform:translate3d(2px,0,0)}30%,50%,70%{transform:translate3d(-4px,0,0)}40%,60%{transform:translate3d(4px,0,0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes slideOutLeft{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-20px)}}@keyframes slideOutRight{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(20px)}}.slide-in-left{animation:slideInLeft .2s cubic-bezier(.4,0,.2,1)}.slide-in-right{animation:slideInRight .2s cubic-bezier(.4,0,.2,1)}.slide-out-left{animation:slideOutLeft .2s cubic-bezier(.4,0,.2,1)}.slide-out-right{animation:slideOutRight .2s cubic-bezier(.4,0,.2,1)}@keyframes stamp-slam{0%{transform:translate(-50%,-50%) scale(5);opacity:0}70%{transform:translate(-50%,-50%) scale(.9);opacity:1}to{transform:translate(-50%,-50%) scale(1);opacity:.8}}@keyframes gentle-pulse{0%,to{box-shadow:0 0 0 3px #b4530926}50%{box-shadow:0 0 0 5px #b4530933}}@keyframes unfurl{0%{transform:scaleY(0)}to{transform:scaleY(1)}}@keyframes pulse-audio{0%,to{box-shadow:0 2px 4px #0000000d}50%{box-shadow:0 0 0 4px #a932264d}}@keyframes pulse-dot{0%,to{box-shadow:0 0 #a9322666}50%{box-shadow:0 0 0 4px #a9322600}}@keyframes pop-in{0%{transform:scale(0)}70%{transform:scale(1.3)}to{transform:scale(1)}}.card-toolbar{display:flex;flex-direction:row;justify-content:center;gap:20px;margin-top:15px;margin-bottom:20px;width:100%}.tool-btn{width:48px;height:48px;border-radius:50%;border:1px solid var(--outline-variant);background:var(--bg-surface, #fff);color:var(--on-surface, #333);display:flex;justify-content:center;align-items:center;cursor:pointer;transition:all .2s ease;padding:0;box-shadow:0 2px 4px #0000000d}.tool-btn:active{background:var(--primary-container);transform:scale(.95)}.tool-btn.audio-playing{background:var(--tang-red);color:#fff;animation:pulse-audio 1.5s ease-in-out infinite}.tool-btn svg{width:24px;height:24px}.dictation-container{display:flex!important;flex-direction:column!important;align-items:center!important;justify-content:flex-start!important;padding:0 10px calc(20px + env(safe-area-inset-bottom,0px))!important;min-height:auto;width:100%;height:auto;flex-shrink:0;overflow:visible;padding-bottom:20px!important;touch-action:auto}.dictation-container .writing-card{width:95%;max-width:min(400px,90vw);margin-top:4px;padding:15px}.game-stage{padding:0 10px 20px}.game-stage #completed-text{width:95%;max-width:600px;margin-bottom:10px!important;font-size:clamp(1.2rem,4vw,2.2rem)!important;min-height:2rem!important;line-height:1.4;color:var(--tang-jade)!important;font-family:var(--app-font);text-align:center;padding:0 10px;touch-action:pan-y}.game-stage #writing-card{width:95%;max-width:min(400px,90vw);margin-top:5px}.dictation-completed-phrases{width:95%;max-width:600px;margin-bottom:10px!important;font-size:clamp(1.2rem,4vw,2.2rem)!important;min-height:2rem!important;line-height:1.4;color:var(--tang-jade)!important;font-family:var(--app-font);text-align:center;padding:0 10px;opacity:.6;transition:opacity .3s ease}.spelling-carousel{display:flex;flex-direction:column;align-items:center;width:100%;gap:15px;padding:0 5px;overflow:hidden;position:relative}.spelling-chars-container{display:flex;flex-direction:row;width:100%;transition:transform .4s cubic-bezier(.25,1,.5,1);will-change:transform}.dictation-indicators{display:flex;justify-content:center;gap:10px;margin-top:12px;margin-bottom:15px;padding:0 10px}.indicator-dot{width:10px;height:10px;border-radius:50%;background:var(--outline-variant);transition:all .3s cubic-bezier(.175,.885,.32,1.275);border:1px solid rgba(0,0,0,.05)}.indicator-dot.active{background:var(--tang-red);transform:scale(1.4);animation:pulse-dot 1.5s ease-in-out infinite}.indicator-dot.correct{background:var(--tang-jade);border-color:var(--tang-jade);animation:pop-in .4s cubic-bezier(.175,.885,.32,1.275)}.indicator-dot.hint-used{background:#fbbf24;border-color:#f59e0b}.dictation-header-progress{width:95%;max-width:min(400px,90vw);margin:4px 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var(--tang-red);box-shadow:0 2px 8px #a9322633}.wordlist-item.completed{background:#34a85314;border-color:var(--tang-jade)}.wordlist-number{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:var(--outline-variant);border-radius:50%;font-size:.875rem;font-weight:600;color:var(--tang-ink)}.wordlist-item.current .wordlist-number{background:var(--tang-red);color:#fff}.wordlist-item.completed .wordlist-number{background:var(--tang-jade);color:#fff}.wordlist-term{font-size:1.5rem;font-weight:500;color:var(--tang-ink);font-family:var(--app-font)}.wordlist-pinyin{font-size:.95rem;color:var(--tang-ink-light);font-style:italic;white-space:nowrap}.next-chunk-container{width:100%;padding:16px 10px;display:flex;flex-direction:column;align-items:center;min-height:60px;background:transparent}#btn-next-chunk{width:100%;min-height:44px;padding:12px 24px;font-size:1rem;border-radius:8px;transition:opacity .2s ease,background-color .2s ease}#btn-next-chunk:disabled{opacity:.5;cursor:not-allowed}@media(max-width:600px){.dictation-container{padding:20px 8px calc(180px + env(safe-area-inset-bottom,0px))!important;touch-action:pan-y pinch-zoom;min-height:100dvh;display:flex!important;flex-direction:column!important;justify-content:flex-start!important}.dictation-container .writing-card{width:98%;padding:10px;margin:auto 0}.char-slot{width:min(220px,60vw);height:min(220px,60vw)}.dictation-completed-phrases{width:98%;margin-bottom:8px!important;padding:12px 8px;min-height:48px;touch-action:pan-y}.card-toolbar{gap:12px;margin:20px 0 50px;touch-action:auto}.tool-btn{width:48px;height:48px}.spelling-chars-container{margin:15px 0 25px}.dictation-header-progress{width:98%;margin:2px auto}.progress-bar-wrapper{height:4px}.progress-count{font-size:.7rem;top:8px}.pinyin-display-large{font-size:clamp(1.4rem,5vw,1.8rem);margin-bottom:4px}.game-stage .writing-card,.writing-card{height:auto!important;min-height:fit-content!important;flex-shrink:0;padding-bottom:25px;overflow:visible}.pinyin-display-large{margin-top:10px;margin-bottom:15px;padding:0 5px}}@media(max-width:380px){.char-slot{width:min(160px,48vw);height:min(160px,48vw)}.dictation-container{padding:0 5px calc(150px + env(safe-area-inset-bottom,0px))!important}.dictation-container .writing-card{padding:8px;margin-top:1px;margin-bottom:30px}.dictation-header-progress{margin:1px auto}.spelling-carousel{gap:10px}.card-toolbar{gap:8px;margin-bottom:40px}.tool-btn{width:48px;height:48px}.indicator-dot{width:10px;height:10px}.dictation-indicators{margin-top:8px;margin-bottom:20px}}@media(max-width:360px){.char-slot{width:min(140px,44vw);height:min(140px,44vw)}.writing-card{padding:12px 8px;margin:15px 4px}.tool-btn{width:42px;height:42px;font-size:.95rem}.card-toolbar{gap:6px;margin-bottom:35px}.indicator-dot{width:9px;height:9px}.dictation-indicators{margin-top:6px;margin-bottom:18px}.pinyin-display-large{font-size:1.1rem}#definition-display{font-size:.8rem}.game-stage{padding:0 4px calc(130px + env(safe-area-inset-bottom,0px))}}@media(max-width:500px){.wordlist-item{grid-template-columns:36px 1fr;gap:10px;padding:10px 12px}.wordlist-pinyin{grid-column:2;font-size:.85rem;margin-top:-4px}.wordlist-term{font-size:1.3rem}}@media(min-width:601px)and (max-width:1024px){.char-slot{width:min(220px,35vh);height:min(220px,35vh)}.writing-card{max-width:700px;padding:30px;height:auto;min-height:400px}.tool-btn{width:52px;height:52px}.card-toolbar{gap:20px}.dictation-container{max-width:800px;padding:4px 16px calc(100px + env(safe-area-inset-bottom,0px))}.dictation-container .writing-card{margin-top:6px}.dictation-header-progress{margin:3px auto 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.lesson-card:nth-child(3){animation-delay:.15s}.lesson-grid .lesson-card:nth-child(4){animation-delay:.2s}.lesson-grid .lesson-card:nth-child(5){animation-delay:.25s}.lesson-grid .lesson-card:nth-child(6){animation-delay:.3s}.lesson-grid .lesson-card:nth-child(7){animation-delay:.35s}.lesson-grid .lesson-card:nth-child(8){animation-delay:.4s}.lesson-grid .lesson-card:not(:last-child):after{content:"";position:absolute;right:-40px;top:50%;width:30px;height:2px;background:repeating-linear-gradient(to right,var(--tang-gold) 0,var(--tang-gold) 8px,transparent 8px,transparent 16px);opacity:.4}.lesson-select-actions{display:flex;gap:15px;margin-top:20px;justify-content:center;flex-wrap:wrap}.lesson-progress-ring{position:relative;width:40px;height:40px;flex-shrink:0}.lesson-progress-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.lesson-progress-ring .ring-bg{fill:none;stroke:#e2e8f0;stroke-width:3}.lesson-progress-ring .ring-fill{fill:none;stroke:var(--tang-red);stroke-width:3;stroke-linecap:round;transition:stroke-dasharray .5s ease}.lesson-number{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:.85rem;font-weight:600;color:var(--tang-ink);z-index:1;white-space:nowrap;line-height:1}.lesson-info{flex:1;text-align:left}.lesson-title{font-size:1.1rem;color:var(--tang-ink);margin-bottom:4px}.lesson-meta{font-size:.85rem;color:var(--ink-faint)}.category-filter{display:flex;gap:8px;margin:10px 0 20px;padding:5px 10px;width:100%;max-width:500px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;-webkit-overflow-scrolling:touch}.category-filter::-webkit-scrollbar{display:none}.category-chip{padding:6px 16px;border-radius:var(--scholar-radius);background:var(--paper-dark);color:var(--tang-ink);font-size:.9rem;white-space:nowrap;cursor:pointer;border:1px solid transparent;transition:all .3s 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#991b1b4d}.hero-overall-meta{color:var(--ink-light);font-size:.9rem;font-weight:600;text-align:right;line-height:1.4}.hero-main{display:flex;flex-direction:column;align-items:center;margin-bottom:20px}.hero-streak{display:flex;align-items:baseline;gap:10px;margin-bottom:8px}.hero-streak-num{font-size:3.5rem;font-weight:900;color:var(--tang-red);line-height:1}.hero-streak-text{font-size:1.2rem;color:var(--ink);font-weight:700}.hero-xp-info{color:var(--ink-wash);font-size:.95rem;font-weight:600;margin-top:6px}.hero-xp-bar-container{height:6px;background:var(--tang-paper-dark);border-radius:3px;margin-bottom:16px;overflow:hidden;border:1px solid rgba(43,43,43,.1)}.hero-xp-fill{height:100%;background:linear-gradient(90deg,var(--tang-jade),#10b981);border-radius:3px;transition:width .6s cubic-bezier(.34,1.56,.64,1);box-shadow:inset 0 1px 2px #ffffff4d}.hero-divider{height:1px;background:var(--tang-paper-dark);margin:16px 0}.hero-daily-footer{text-align:center;color:var(--ink);font-size:.95rem;font-weight:600;padding:8px 12px;background:#991b1b0d;border-radius:var(--scholar-radius)}.stat-emoji{opacity:.9}.activity-list{display:flex;flex-direction:column;gap:8px}.activity-item{display:flex;align-items:center;background:#fff;padding:14px 16px;border:1px solid var(--tang-paper-dark);border-radius:var(--scholar-radius);transition:all .2s ease}.activity-item:hover{box-shadow:var(--shadow-tang);border-color:var(--tang-red);transform:translate(4px)}.activity-icon{width:40px;height:40px;display:flex;justify-content:center;align-items:center;margin-right:14px;background:#991b1b14;border-radius:50%;font-size:1.3rem}.activity-info{flex:1;min-width:0}.activity-title{font-weight:600;color:var(--ink);font-size:1rem;margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.activity-time{font-size:.85rem;color:var(--ink-light);font-weight:500}.activity-score{font-weight:700;color:var(--ink-light);font-size:1.1rem;padding:4px 10px;background:var(--tang-paper-dark);border-radius:var(--scholar-radius)}.activity-score.good{color:#fff;background:var(--tang-jade)}.empty-state{text-align:center;color:var(--ink-light);padding:32px 20px;background:#fff;border-radius:var(--scholar-radius);border:2px dashed var(--tang-paper-dark);font-weight:600;font-size:1rem}.char-mastery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(75px,1fr));gap:12px;padding:0}.char-mastery-item{display:flex;flex-direction:column;align-items:center;gap:10px;padding:12px;background:#fff;border:2px solid var(--tang-paper-dark);border-radius:var(--scholar-radius);transition:all .2s ease}.char-mastery-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-tang);border-color:var(--tang-red)}.char-mastery-seal{width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:1.9rem;font-family:var(--app-font);color:var(--tang-red);border:2px solid var(--tang-red);background:#991b1b14;border-radius:6px;position:relative}.char-mastery-level{font-size:.8rem;color:var(--ink-light);font-weight:700}.char-mastery-item.level-0 .char-mastery-seal{opacity:.4;border-style:dashed;color:var(--ink-light)}.char-mastery-item.level-5 .char-mastery-seal{box-shadow:0 0 12px #991b1b66;border-width:3px;background:var(--tang-red);color:#fff}.char-mastery-item.level-5 .char-mastery-level{color:var(--tang-gold);font-weight:800}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes inkBleedIn{0%{opacity:0;filter:blur(4px)}to{opacity:1;filter:blur(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.animate-fade-in{animation:fadeIn .3s ease}.animate-slide-up{animation:slideInUp .3s ease}.animate-ink-bleed{animation:inkBleedIn .4s ease}.animate-scale{animation:scaleIn .2s ease}.animate-pulse{animation:pulse 2s infinite}.animate-shake{animation:shake .3s ease}.transition-fast{transition:all .15s ease}.transition-normal{transition:all .3s ease}.transition-slow{transition:all .5s ease}.hover-lift:hover{transform:translateY(-2px);box-shadow:var(--shadow-tang-hover)}.hover-scale:hover{transform:scale(1.05)}*:focus-visible{outline:2px solid var(--tang-red);outline-offset:2px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.splash-screen{position:fixed;inset:0;z-index:9999;background:var(--tang-paper);background-image:var(--texture-paper);display:flex;justify-content:center;align-items:center;transition:opacity .8s ease-out,visibility .8s step-end}.splash-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}.splash-content{text-align:center;animation:fadeUp 1s ease-out}.splash-title{font-family:var(--app-font);font-size:4rem;color:var(--tang-ink);margin-bottom:10px;font-weight:700;letter-spacing:.2rem;text-shadow:0 4px 12px rgba(0,0,0,.1)}.splash-subtitle{font-size:1.5rem;color:var(--tang-red);letter-spacing:.5rem;font-weight:500}@keyframes fadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.update-notification{position:fixed;top:80px;left:50%;transform:translate(-50%) translateY(-120%);z-index:9999;max-width:90%;width:420px;transition:transform .4s cubic-bezier(.4,0,.2,1);opacity:0}.update-notification.show{transform:translate(-50%) translateY(0);opacity:1}.update-content{background:linear-gradient(135deg,#fffefa,#fff8e7);border:2px solid var(--tang-gold);border-radius:var(--scholar-radius);padding:20px;box-shadow:0 8px 32px #a9322640;display:flex;flex-direction:column;gap:12px;position:relative}.update-header{display:flex;align-items:center;gap:12px}.update-icon{font-size:2rem;flex-shrink:0;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.update-text{flex:1;min-width:0}.update-text strong{display:block;font-size:1.1rem;color:var(--tang-red);margin-bottom:4px;font-weight:700}.update-text p{margin:0;font-size:.9rem;color:var(--tang-ink)}.update-version{font-size:.85rem!important;color:var(--tang-ink-light)!important;font-weight:500}.update-features{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}.update-features li{font-size:.9rem;color:var(--tang-ink);padding-left:0}.update-actions{display:flex;gap:10px;margin-top:4px}.update-btn{background:var(--tang-red);color:#fff;border:none;padding:10px 20px;border-radius:6px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap;font-family:var(--app-font);flex:1}.update-btn:hover{background:var(--tang-red-dark);transform:translateY(-1px);box-shadow:0 4px 12px #a932264d}.update-btn:active{transform:translateY(0)}.update-later{background:transparent;color:var(--tang-ink);border:2px solid var(--outline-variant);padding:10px 20px;border-radius:6px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap;font-family:var(--app-font);flex:1}.update-later:hover{background:#0000000d;border-color:var(--tang-ink-light)}.update-dismiss{position:absolute;top:8px;right:8px;background:transparent;border:none;color:var(--tang-ink-light);font-size:1.5rem;line-height:1;cursor:pointer;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.update-dismiss:hover{background:#0000000d;color:var(--tang-ink)}@media(max-width:600px){.update-notification{top:60px;width:calc(100% - 30px)}.update-content{padding:16px;gap:10px}.update-icon{font-size:1.5rem}.update-text strong{font-size:1rem}.update-text p,.update-features li{font-size:.85rem}.update-btn,.update-later{padding:8px 14px;font-size:.9rem}.update-actions{flex-direction:column;gap:8px}}