@import"https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=Noto+Serif+SC:wght@500&display=swap";:root{--primary-red: #D8483E;--primary-red-hover: #C53830;--primary-red-light: #FFE3E0;--jade-green: #2F9D8A;--jade-green-hover: #258372;--jade-green-light: #E3F5F2;--gold-accent: #F0B762;--gold-hover: #E0952C;--text-primary: #1F2233;--text-secondary: #5E6075;--text-tertiary: #8A8C9F;--text-inverse: #FFFFFF;--app-bg: linear-gradient(135deg, #fffdf8 0%, #fdeee1 100%);--sidebar-bg: linear-gradient(180deg, rgba(255, 255, 255, .95), rgba(254, 243, 234, .85));--panel-bg: rgba(255, 255, 255, .9);--panel-border: rgba(222, 192, 173, .45);--bg-primary: rgba(255, 255, 255, .92);--bg-secondary: rgba(255, 250, 244, .65);--bg-tertiary: rgba(255, 255, 255, .6);--bg-accent: rgba(248, 229, 215, .6);--border-light: rgba(234, 210, 196, .7);--border-medium: rgba(210, 184, 170, .9);--border-dark: rgba(134, 99, 83, .8);--shadow-sm: 0 8px 20px rgba(216, 72, 62, .08);--shadow-md: 0 15px 30px rgba(31, 34, 51, .12);--shadow-lg: 0 25px 45px rgba(31, 34, 51, .16);--shadow-xl: 0 40px 60px rgba(31, 34, 51, .2);--spacing-xxs: .125rem;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-xl: 28px;--radius-full: 9999px;--sidebar-width: 240px;--content-max-width: 960px;--body-bg: var(--app-bg);--lesson-card-max-width: 720px;--lesson-card-padding: var(--spacing-xl);--font-sans: "Plus Jakarta Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-serif: "Noto Serif SC", "Playfair Display", serif;--transition-fast: .15s ease;--transition-base: .22s ease;--transition-slow: .35s ease}.dark-mode,body.dark-theme{--text-primary: #F8F9FA;--text-secondary: #DEE2E6;--text-tertiary: #ADB5BD;--text-inverse: #FDFEFE;--app-bg: linear-gradient(145deg, #10121a 0%, #1c1f2c 100%);--sidebar-bg: linear-gradient(180deg, rgba(22, 24, 32, .95), rgba(17, 20, 28, .92));--panel-bg: rgba(25, 28, 36, .9);--panel-border: rgba(255, 255, 255, .06);--bg-primary: #202331;--bg-secondary: #2a2f3f;--bg-tertiary: #343a4a;--bg-accent: rgba(45, 33, 33, .9);--border-light: rgba(255, 255, 255, .08);--border-medium: rgba(255, 255, 255, .12);--border-dark: rgba(255, 255, 255, .2);--shadow-sm: 0 8px 20px rgba(0, 0, 0, .35);--shadow-md: 0 15px 30px rgba(0, 0, 0, .4);--shadow-lg: 0 25px 45px rgba(0, 0, 0, .45);--shadow-xl: 0 40px 60px rgba(0, 0, 0, .55);--body-bg: var(--app-bg)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--text-primary);background:var(--body-bg, var(--app-bg));line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app-container{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:100vh;background:var(--body-bg, var(--app-bg));position:relative}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid var(--panel-border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto;box-shadow:var(--shadow-sm);z-index:2}.sidebar:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(rgba(216,72,62,.25) 1px,transparent 1px),radial-gradient(rgba(240,183,98,.3) 1px,transparent 1px);background-size:64px 64px,96px 96px;opacity:.15;pointer-events:none;mix-blend-mode:multiply}.sidebar-header{padding:var(--spacing-sm) var(--spacing-lg);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;position:relative}.sidebar-header:after{content:"";position:absolute;inset:auto 20px -2px;height:3px;border-radius:var(--radius-full);background:linear-gradient(90deg,var(--primary-red),var(--gold-accent));opacity:.8}.app-logo{display:flex;align-items:center;justify-content:center;height:80px;padding:0;border:none;background:transparent;cursor:pointer;width:100%}.app-logo-image{height:100%;width:auto;display:block;clip-path:inset(0 0 0 0)}.logo-icon{font-size:2rem;line-height:1}.header-controls{display:flex;align-items:center;gap:var(--spacing-sm)}.language-switcher{display:flex;gap:2px;background:var(--bg-secondary);padding:2px;border-radius:var(--radius-md);border:1px solid var(--border-light)}.language-switcher button{padding:4px 8px;border:none;background:transparent;color:var(--text-secondary);font-size:.75rem;font-weight:600;border-radius:6px;cursor:pointer;transition:all var(--transition-fast);text-transform:uppercase;letter-spacing:.05em}.language-switcher button:hover{background:var(--bg-primary);color:var(--text-primary)}.language-switcher button.active{background:var(--primary-red);color:var(--text-inverse);box-shadow:var(--shadow-sm)}.theme-toggle{width:40px;height:40px;border-radius:var(--radius-md);border:1px solid var(--border-medium);background:var(--bg-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.25rem;transition:all var(--transition-base)}.theme-toggle:hover{background:var(--bg-tertiary);border-color:var(--border-dark);transform:scale(1.05)}.user-profile{margin:var(--spacing-md) var(--spacing-md);cursor:pointer;transition:all var(--transition-base)}.user-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));color:var(--text-inverse);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}.user-info{flex:1}.user-name{font-weight:600;color:var(--text-primary);font-size:.9rem;margin-bottom:.05rem}.user-level{font-size:.75rem;color:var(--text-secondary)}.sidebar-nav{flex:1;padding:var(--spacing-md);overflow-y:auto;display:flex;flex-direction:column;gap:var(--spacing-sm)}.sidebar-cpop-panel{margin:0 var(--spacing-md) var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-light)}.sidebar-cpop-btn{width:100%;border:none;border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-sm);background:linear-gradient(130deg,var(--primary-red),var(--gold-accent));color:var(--text-inverse);display:flex;align-items:center;gap:var(--spacing-sm);cursor:pointer;box-shadow:var(--shadow-sm);transition:all var(--transition-base)}.sidebar-cpop-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.sidebar-cpop-icon{width:32px;height:32px;border-radius:var(--radius-md);background:#ffffff29;display:inline-flex;align-items:center;justify-content:center;font-size:1.15rem}.sidebar-cpop-label{font-size:.8rem;font-weight:600;text-align:left}.sidebar-nav-section{border-top:1px solid var(--border-light)}.sidebar-nav-section:first-of-type{border-top:none;flex:1;display:flex;flex-direction:column}.sidebar-footer{padding:var(--spacing-md);border-top:1px solid var(--border-light);background:transparent}.sidebar-footer .nav-item{background:var(--bg-secondary);margin:var(--spacing-sm) 0}.sidebar-footer .nav-item:hover{transform:translate(4px)}.sidebar-section-header{display:flex;align-items:center;justify-content:space-between;color:var(--text-tertiary);letter-spacing:.08em;font-size:.72rem;font-weight:700;padding:var(--spacing-sm) var(--spacing-lg) var(--spacing-xs)}.sidebar-section-chevron{font-size:.9rem;line-height:1;color:var(--text-tertiary)}.nav-item{width:100%;padding:var(--spacing-xs) var(--spacing-md);border:none;background:none;display:flex;align-items:center;justify-content:flex-start;gap:var(--spacing-sm);cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-base);color:var(--text-secondary);font-size:.85rem;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid transparent}.nav-item:hover{background:var(--bg-primary);color:var(--text-primary);transform:translate(6px);box-shadow:var(--shadow-sm)}.nav-item.active{background:var(--primary-red-light);color:var(--primary-red);font-weight:600;box-shadow:var(--shadow-sm);border-color:#d8483e66}.nav-icon{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center}.nav-icon img{width:16px;height:16px;object-fit:contain;display:block}.nav-label{flex:1;text-align:left}.main-content{padding:var(--spacing-2xl) clamp(1.5rem,3vw,3.5rem);max-width:1080px;margin:0 auto;width:100%;position:relative;z-index:1;isolation:isolate}.review-page,.theme-page-modern,.dictionary-page,.ai-assistant-page,.mini-games-page,.settings-page{width:100%;max-width:var(--content-max-width);margin-left:auto;margin-right:auto}.welcome-section{background:var(--welcome-gradient, linear-gradient(135deg, rgba(216, 72, 62, .92), rgba(240, 183, 98, .7)));color:var(--text-inverse);padding:1.75rem 2rem;border-radius:26px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}.welcome-section:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;mix-blend-mode:screen;opacity:.8;background-image:radial-gradient(circle at 25% 20%,rgba(255,255,255,.35),transparent 45%),radial-gradient(circle at 80% 0%,rgba(255,255,255,.25),transparent 45%)}.welcome-ornament{position:absolute;right:40px;bottom:20px;font-size:3.25rem;font-family:var(--font-serif);opacity:.25;color:#fff}.welcome-title{font-weight:600;font-size:1.3rem;letter-spacing:-.03em;position:relative;z-index:1;margin-bottom:.35rem}.welcome-section .user-name{font-size:1em;font-weight:inherit}.level-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:calc(var(--spacing-xs) * .8) var(--spacing-sm);border-radius:var(--radius-full);font-size:.75rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--primary-red);background:#d8483e1f;border:1px solid rgba(216,72,62,.25)}.dark-mode .level-badge{color:#ffd6ce;background:#d8483e52;border-color:#fff3}.level-badge.on-dark{background:#ffffff2e;color:var(--text-inverse);border-color:#ffffff59}.welcome-section .level-badge{margin-top:var(--spacing-xs)}.main-cta{border:none;border-radius:var(--radius-lg);padding:1rem 1.5rem;font-size:1rem;font-weight:600;color:var(--text-inverse);background:linear-gradient(120deg,var(--primary-red),var(--gold-accent));box-shadow:var(--shadow-md);cursor:pointer;transition:transform var(--transition-base),box-shadow var(--transition-base);display:flex;align-items:center;justify-content:center;gap:.75rem;width:100%;margin-top:.75rem}.main-cta .arrow{display:inline-flex;font-size:1.25rem;transition:transform var(--transition-base)}.main-cta:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.main-cta:hover .arrow{transform:translate(6px)}.page-title{font-size:1.3rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-xs);letter-spacing:-.03em}.page-subtitle{font-size:.85rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.section-title{font-size:2rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-md);letter-spacing:-.02em}.card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-sm);border:1px solid var(--border-light);transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-md);border-color:var(--border-medium)}.btn-primary{padding:var(--spacing-sm) var(--spacing-lg);background:var(--primary-red);color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--primary-red-hover);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--transition-base)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--border-dark)}.btn-secondary:disabled{opacity:.5;cursor:not-allowed}.btn-danger{padding:var(--spacing-sm) var(--spacing-lg);background:#dc2626;color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;cursor:pointer;transition:all var(--transition-base)}.btn-danger:hover:not(:disabled){background:#b91c1c;box-shadow:0 4px 12px #dc26264d;transform:translateY(-1px)}.btn-danger:disabled{opacity:.5;cursor:not-allowed}input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{width:100%;padding:var(--spacing-md) var(--spacing-lg);border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:1rem;font-family:var(--font-sans);color:var(--text-primary);background:var(--bg-primary);transition:all var(--transition-base)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--primary-red);box-shadow:0 0 0 3px var(--primary-red-light)}.lesson-flashcard{background:var(--bg-primary);border-radius:var(--radius-xl);padding:var(--lesson-card-padding);box-shadow:var(--shadow-lg);border:1px solid var(--border-light);text-align:center;width:100%;max-width:var(--lesson-card-max-width);margin:0 auto}.card-hanzi{font-size:4rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg);font-family:var(--font-serif)}.card-pinyin{font-size:1.5rem;color:var(--text-secondary);margin-bottom:var(--spacing-md)}.card-audio-stack{display:flex;flex-direction:column;gap:.5rem;width:100%;align-items:center}.card-audio-stack .audio-button{width:50%;min-width:220px}.card-examples{margin-top:var(--spacing-lg);width:100%;padding:var(--spacing-md);border-radius:var(--radius-lg);border:1px solid var(--panel-border);background:var(--bg-secondary);text-align:left;display:flex;flex-direction:column;gap:var(--spacing-sm)}.card-examples h4{margin:0;font-size:.95rem;letter-spacing:.08em;color:var(--text-secondary);text-transform:uppercase}.card-examples .example-item{display:flex;flex-direction:column;gap:var(--spacing-xs);color:var(--text-primary)}.card-examples .example-pinyin,.card-examples .example-translation{color:var(--text-secondary);font-size:.95rem}.card-examples .audio-button{align-self:flex-start;min-width:auto;width:auto}.card-translation{font-size:1.25rem;color:var(--text-primary);font-weight:500;margin-top:var(--spacing-lg)}.progress-bar-bg{height:8px;background:var(--bg-tertiary);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fg{height:100%;background:linear-gradient(90deg,var(--primary-red),var(--gold-accent));border-radius:var(--radius-full);transition:width var(--transition-slow)}.badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-md);background:var(--bg-tertiary);color:var(--text-primary);border-radius:var(--radius-full);font-size:.875rem;font-weight:500}.badge-primary{background:var(--primary-red-light);color:var(--primary-red)}.badge-success{background:var(--jade-green-light);color:var(--jade-green)}.next-lesson-section,.continue-section,.progress-section{background:transparent;border-radius:var(--radius-lg);padding:0;border:none;box-shadow:none}.section-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);text-transform:uppercase;font-size:.75rem;letter-spacing:.1em;font-weight:600;background:#d8483e1f;color:var(--primary-red)}.next-lesson-card{margin-top:var(--spacing-sm);display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);border-radius:var(--radius-lg);border:1px solid var(--panel-border);cursor:pointer;transition:transform var(--transition-base),box-shadow var(--transition-base);background:var(--panel-bg)}.next-lesson-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}.play-button{width:48px;height:48px;border-radius:var(--radius-full);background:var(--primary-red-light);color:var(--primary-red);display:flex;align-items:center;justify-content:center;font-size:1.5rem}.continue-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--spacing-md);margin-top:var(--spacing-md)}.continue-card{border-radius:var(--radius-lg);padding:1rem;border:1px solid var(--panel-border);background:var(--panel-bg);display:flex;flex-direction:column;gap:var(--spacing-xs);align-items:flex-start;box-shadow:var(--shadow-sm)}.continue-icon{width:40px;height:40px;border-radius:var(--radius-full);background:var(--jade-green-light);color:var(--jade-green);display:flex;align-items:center;justify-content:center;font-size:1.1rem}.continue-icon img{width:20px;height:20px;object-fit:contain;display:block}.continue-badge{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.continue-title{font-size:.95rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.continue-subtitle{font-size:.8rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.continue-btn{border:none;background:var(--primary-red-light);color:var(--primary-red);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);font-weight:600;cursor:pointer;transition:background var(--transition-base),transform var(--transition-base)}.continue-btn:hover:not(.disabled){background:#d8483e26;transform:translate(4px)}.continue-btn.disabled,.continue-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.progress-summary{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--spacing-lg);margin-top:var(--spacing-lg)}.total-words{display:flex;flex-direction:column}.total-number{font-size:1.8rem;font-weight:700;color:var(--primary-red)}.total-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.1em;font-size:.85rem}.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.stat-card{background:var(--panel-bg);padding:.85rem 1rem;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--panel-border);position:relative;overflow:hidden;display:flex;flex-direction:column;gap:var(--spacing-xs);min-height:90px}.stat-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.08em;font-weight:600;margin-bottom:.2rem}.stat-value{font-size:1.5rem;font-weight:600;color:var(--primary-red);line-height:1}.stat-icon{width:26px;height:26px;border-radius:var(--radius-full);background:var(--primary-red-light);color:var(--primary-red);display:flex;align-items:center;justify-content:center;font-size:1rem;margin-bottom:.2rem}.stat-icon img{width:18px;height:18px;object-fit:contain;display:block}.lessons-page{display:flex;flex-direction:column;gap:var(--spacing-xl)}.lessons-header{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.lessons-paths-list{display:flex;flex-direction:column;gap:var(--spacing-lg)}.lesson-path-section{padding:var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--panel-border);background:var(--panel-bg);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.lesson-path-section:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 85% 15%,rgba(240,183,98,.18),transparent 55%);pointer-events:none}.path-header-bar{display:flex;align-items:center;gap:var(--spacing-lg);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-light)}.path-icon-badge{width:44px;height:44px;border-radius:var(--radius-md);background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:1.3rem}.path-name{flex:1;font-size:1.25rem;font-weight:700;color:var(--text-primary)}.path-progress-badge{font-size:.85rem;color:var(--text-secondary);background:#ffffff14;padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);font-weight:600}.path-description-text{font-size:.85rem;color:var(--text-secondary);margin-bottom:var(--spacing-md);max-width:100%}.path-lessons-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--spacing-lg)}.lesson-path-card{position:relative;border-radius:var(--radius-lg);border:1px solid transparent;padding:var(--spacing-md);background:linear-gradient(180deg,#ffffff0f,#ffffff05);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base);cursor:pointer;min-height:150px;display:flex;flex-direction:column;gap:var(--spacing-sm)}.lesson-path-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;padding:1px;background:linear-gradient(120deg,#d8483e59,#f0b76259);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity var(--transition-base);pointer-events:none}.lesson-path-card:not(.locked):hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.lesson-path-card:not(.locked):hover:before{opacity:1}.lesson-path-card.locked{opacity:.5;cursor:not-allowed}.lesson-path-card.completed{border-color:#2f9d8a80;background:linear-gradient(180deg,#2f9d8a2e,#2f9d8a0d)}.lesson-card-header{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary)}.lesson-index{font-weight:700}.lesson-status-icon{font-size:1.2rem}.lesson-card-title{font-size:1.05rem;color:var(--text-primary);font-weight:600;line-height:1.4}.lesson-card-footer{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-secondary)}.lesson-duration{display:inline-flex;align-items:center;gap:var(--spacing-xs)}.lesson-start-arrow{color:var(--primary-red);font-size:1.1rem;font-weight:700}.lp-page{max-width:var(--content-max-width);margin:0 auto;display:flex;flex-direction:column;gap:18px;padding-bottom:40px}.lp-header{display:flex;flex-direction:column;gap:4px}.lp-title{margin:0;font-size:1.75rem;font-weight:700;letter-spacing:-.02em;color:var(--text-primary)}.lp-subtitle{margin:0;font-size:.92rem;color:var(--text-secondary)}.lp-search-wrap{display:flex;align-items:center;gap:8px;border:1px solid var(--panel-border);border-radius:8px;background:color-mix(in srgb,var(--panel-bg) 90%,transparent);padding:6px 12px}.lp-search-icon{font-size:.9rem;color:var(--text-secondary);flex-shrink:0}.lp-search{flex:1 1 0%;min-width:0;border:none!important;background:transparent!important;padding:0!important;margin:0!important;height:18px!important;line-height:18px;font-size:.84rem;color:var(--text-primary);outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;box-sizing:border-box}.lp-search::placeholder{color:var(--text-secondary)}.lp-global{border:1px solid var(--panel-border);border-radius:14px;background:color-mix(in srgb,var(--panel-bg) 92%,transparent);padding:16px;display:flex;flex-direction:column;gap:10px}.lp-global-top{display:flex;justify-content:space-between;align-items:center}.lp-global-label{font-size:.9rem;font-weight:700;color:var(--text-primary)}.lp-global-pct{font-size:.9rem;font-weight:700;color:var(--primary-red)}.lp-global-bar{height:8px;border-radius:var(--radius-full);background:color-mix(in srgb,var(--bg-tertiary) 85%,transparent);overflow:hidden}.lp-global-bar>div{height:100%;border-radius:var(--radius-full);background:linear-gradient(90deg,var(--primary-red),var(--gold-accent));transition:width .4s ease}.lp-global-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding-top:6px;border-top:1px solid color-mix(in srgb,var(--panel-border) 60%,transparent)}.lp-gstat{display:flex;align-items:center;gap:8px}.lp-gstat-icon{font-size:1.1rem}.lp-gstat div{display:flex;flex-direction:column}.lp-gstat-label{font-size:.68rem;font-weight:700;letter-spacing:.06em;color:var(--text-secondary);text-transform:uppercase}.lp-gstat-value{font-size:.85rem;font-weight:700;color:var(--text-primary)}.lp-continue{display:flex;flex-direction:column;gap:8px}.lp-continue-label{font-size:.76rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:color-mix(in srgb,var(--primary-red) 70%,var(--text-secondary))}.lp-continue-card{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-radius:14px;background:linear-gradient(132deg,color-mix(in srgb,var(--primary-red) 92%,#fff),color-mix(in srgb,var(--gold-accent) 45%,var(--primary-red)));border:1px solid color-mix(in srgb,var(--primary-red) 45%,transparent);cursor:pointer;transition:transform .15s,box-shadow .15s;position:relative;overflow:hidden}.lp-continue-card:before{content:"";position:absolute;width:200px;height:200px;right:-100px;top:-110px;background:radial-gradient(circle,rgba(255,255,255,.25),transparent 70%)}.lp-continue-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.lp-continue-left{display:flex;flex-direction:column;gap:6px;position:relative;z-index:1}.lp-continue-badges{display:flex;align-items:center;gap:8px}.lp-continue-cat{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:#ffffffeb;color:var(--primary-red);padding:3px 10px;border-radius:var(--radius-full)}.lp-continue-status{font-size:.72rem;font-weight:700;background:#fff3;color:#fffffff2;padding:3px 10px;border-radius:var(--radius-full)}.lp-continue-title{font-size:.95rem;font-weight:700;color:#fff;line-height:1.35}.lp-continue-arrow{width:40px;height:40px;border-radius:var(--radius-full);border:none;background:#ffffffeb;color:var(--primary-red);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;z-index:1;transition:background .15s}.lp-continue-arrow:hover{background:#fff}.lp-tabs-container{display:flex;align-items:center;gap:6px}.lp-tabs-arrow{width:32px;height:32px;border-radius:50%;border:1px solid var(--panel-border);background:color-mix(in srgb,var(--panel-bg) 92%,transparent);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:border-color .15s,color .15s}.lp-tabs-arrow:hover{border-color:var(--primary-red);color:var(--primary-red)}.lp-level-tabs{display:flex;gap:6px;overflow-x:auto;padding:2px 0;scrollbar-width:none;flex:1;min-width:0}.lp-level-tabs::-webkit-scrollbar{display:none}.lp-level-tab{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 16px;border:1px solid var(--panel-border);border-radius:10px;background:color-mix(in srgb,var(--panel-bg) 90%,transparent);color:var(--text-primary);cursor:pointer;transition:border-color .15s,background .15s;min-width:90px}.lp-level-tab:hover{border-color:color-mix(in srgb,var(--primary-red) 30%,var(--panel-border))}.lp-level-tab.active{border-color:var(--primary-red);background:color-mix(in srgb,var(--primary-red) 8%,var(--panel-bg))}.lp-level-tab.locked{opacity:.5}.lp-tab-name{font-size:.82rem;font-weight:700}.lp-tab-meta{font-size:.72rem;color:var(--text-secondary)}.lp-level-tab.active .lp-tab-meta{color:var(--primary-red)}.lp-level-detail{border:1px solid var(--panel-border);border-radius:14px;background:color-mix(in srgb,var(--panel-bg) 92%,transparent);padding:16px;display:flex;flex-direction:column;gap:10px}.lp-level-detail-header{display:flex;justify-content:space-between;align-items:flex-start}.lp-level-detail-left{display:flex;align-items:center;gap:12px}.lp-level-num{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));color:#fff;font-weight:800;font-size:1rem;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.lp-level-name{margin:0;font-size:1rem;font-weight:700;color:var(--text-primary)}.lp-level-focus{margin:2px 0 0;font-size:.82rem;color:var(--text-secondary)}.lp-level-detail-right{display:flex;flex-direction:column;align-items:flex-end;gap:2px}.lp-level-pct{font-size:1rem;font-weight:700;color:var(--primary-red)}.lp-level-count{font-size:.78rem;color:var(--text-secondary)}.lp-level-bar{height:6px;border-radius:var(--radius-full);background:color-mix(in srgb,var(--bg-tertiary) 85%,transparent);overflow:hidden}.lp-level-bar>div{height:100%;border-radius:var(--radius-full);background:linear-gradient(90deg,var(--primary-red),var(--gold-accent));transition:width .4s ease}.lp-paths{display:flex;flex-direction:column;gap:8px}.lp-path{border:1px solid var(--panel-border);border-radius:12px;background:color-mix(in srgb,var(--panel-bg) 90%,transparent);overflow:hidden;transition:border-color .15s}.lp-path.expanded{border-color:color-mix(in srgb,var(--primary-red) 25%,var(--panel-border))}.lp-path-header{width:100%;display:flex;align-items:center;gap:10px;padding:12px 14px;border:none;background:transparent;color:inherit;text-align:left;cursor:pointer;transition:background .15s}.lp-path-header:hover{background:color-mix(in srgb,var(--bg-secondary) 50%,transparent)}.lp-path-icon{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid color-mix(in srgb,var(--primary-red) 25%,var(--panel-border));background:color-mix(in srgb,var(--bg-secondary) 50%,transparent);font-size:1rem;flex-shrink:0}.lp-path-info{flex:1;min-width:0}.lp-path-name{margin:0;font-size:.95rem;font-weight:700;color:var(--text-primary)}.lp-path-sub{font-size:.8rem;color:var(--text-secondary)}.lp-path-pct{font-size:.88rem;font-weight:700;color:var(--primary-red);flex-shrink:0}.lp-path-chevron{display:inline-flex;color:var(--text-secondary);transition:transform .2s ease;flex-shrink:0}.lp-path-chevron.open{transform:rotate(180deg)}.lp-path-lessons{display:flex;flex-direction:column;gap:2px;padding:8px 14px 10px;border-top:1px solid color-mix(in srgb,var(--panel-border) 60%,transparent)}.lp-lesson{width:100%;display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid transparent;border-radius:10px;background:transparent;color:inherit;text-align:left;cursor:pointer;transition:background .15s,border-color .15s}.lp-lesson:not(.locked):hover{background:color-mix(in srgb,var(--bg-secondary) 60%,transparent)}.lp-lesson.active{border-color:color-mix(in srgb,var(--primary-red) 50%,var(--panel-border));background:color-mix(in srgb,var(--primary-red) 8%,var(--bg-secondary))}.lp-lesson.locked{opacity:.4;cursor:not-allowed}.lp-lesson.completed{opacity:.65}.lp-lesson-num{width:28px;height:28px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.lp-lesson-num svg{display:block;flex-shrink:0}.lp-lesson-idx{width:28px;height:28px;border-radius:50%;border:2px solid color-mix(in srgb,var(--text-secondary) 50%,transparent);display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;color:var(--text-secondary);box-sizing:border-box}.lp-lesson-idx.locked{border-color:color-mix(in srgb,var(--text-tertiary, #ccc) 40%,transparent);color:var(--text-tertiary, #ccc)}.lp-lesson-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}.lp-lesson-title{font-size:.9rem;font-weight:600;color:var(--text-primary);line-height:1.3}.lp-lesson.locked .lp-lesson-title{color:var(--text-secondary)}.lp-lesson-meta{font-size:.76rem;color:var(--text-secondary)}@media (max-width: 768px){.lp-page{max-width:100%}.lp-title{font-size:1.35rem}.lp-global-stats{grid-template-columns:repeat(2,1fr)}.lp-level-tabs{gap:6px}.lp-level-tab{min-width:80px;padding:8px 12px}}.lesson-page{width:100%;max-width:var(--lesson-card-max-width);margin:0 auto;padding:var(--spacing-xl);border-radius:var(--radius-xl);border:1px solid var(--panel-border);background:var(--panel-bg);box-shadow:var(--shadow-md);text-align:center}.lesson-hanzi-main{font-size:3.2rem;font-family:var(--font-serif);margin:var(--spacing-sm) 0;color:var(--text-primary)}.lesson-pinyin{font-size:1.2rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.lesson-translation-main{font-size:1.2rem;color:var(--text-primary);font-weight:600;margin-bottom:var(--spacing-sm)}.lesson-nav{display:flex;justify-content:space-between;margin:var(--spacing-lg) 0}.lesson-nav button{border:none;background:var(--bg-secondary);color:var(--text-primary);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-full);font-weight:600;cursor:pointer;transition:all var(--transition-base)}.lesson-nav button:hover{background:var(--primary-red-light);color:var(--primary-red)}.lesson-examples{margin-top:var(--spacing-xl);text-align:left;display:flex;flex-direction:column;gap:var(--spacing-sm)}.example-card{padding:var(--spacing-sm);border-radius:var(--radius-md);border:1px solid var(--panel-border);background:var(--bg-secondary)}.structured-lesson{width:100%;max-width:var(--lesson-card-max-width);margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-xl)}.lesson-header,.lesson-intro-container,.lesson-empty-state,.lesson-flashcard,.quiz-container,.completion-container,.review-session-card,.review-flashcard,.grammar-explanation-card{width:100%;max-width:var(--lesson-card-max-width);margin-left:auto;margin-right:auto}.lesson-card,.lesson-header,.lesson-intro-container,.lesson-empty-state,.lesson-flashcard,.quiz-container,.completion-container,.review-session-card,.review-flashcard{width:min(100%,var(--lesson-card-max-width));margin-left:auto;margin-right:auto}.lesson-empty-state{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);text-align:center;color:var(--text-secondary)}.lesson-intro-container{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md)}.back-btn{border:none;background:var(--bg-secondary);color:var(--text-primary);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);cursor:pointer;font-weight:600}.back-btn:hover{background:var(--primary-red-light);color:var(--primary-red)}.intro-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg)}.structured-lesson .lesson-badge{background:var(--primary-red-light);color:var(--primary-red);padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);font-weight:600}.intro-content{display:flex;flex-direction:column;gap:var(--spacing-lg)}.objectives-section ul{list-style:none;padding-left:0;display:flex;flex-direction:column;gap:var(--spacing-xs)}.lesson-stats{display:flex;gap:var(--spacing-lg);flex-wrap:wrap}.lesson-stats .stat{background:var(--bg-secondary);border-radius:var(--radius-md);padding:var(--spacing-xs) var(--spacing-sm);display:inline-flex;align-items:center;gap:var(--spacing-xs)}.start-lesson-btn{border:none;border-radius:var(--radius-full);padding:var(--spacing-xs) var(--spacing-lg);font-size:.95rem;font-weight:600;color:var(--text-inverse);background:linear-gradient(120deg,var(--primary-red),var(--gold-accent));cursor:pointer;align-self:flex-start}.start-lesson-btn:hover{opacity:.9}.lesson-header{display:flex;justify-content:space-between;align-items:center;background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-lg);padding:var(--spacing-md);box-shadow:var(--shadow-sm)}.progress-indicator{display:flex;flex-direction:column;gap:var(--spacing-xs);min-width:180px}.lesson-flashcard-container{margin-top:var(--spacing-lg)}.lesson-flashcard-actions{margin-top:var(--spacing-lg);display:flex;justify-content:space-between}.quiz-container,.completion-container{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.completion-warning{margin-top:var(--spacing-sm);color:var(--primary-red);font-weight:600}.quiz-word{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.quiz-word-header{width:100%;display:flex;justify-content:flex-end}.quiz-hanzi-row{display:flex;align-items:center;gap:var(--spacing-md)}.quiz-question{text-align:center;margin-bottom:var(--spacing-md);font-size:1.1rem}.quiz-hanzi{font-size:2.5rem;font-family:var(--font-serif)}.quiz-pinyin{color:var(--text-secondary)}.quiz-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--spacing-md)}.quiz-option{border-radius:var(--radius-md);border:1px solid var(--panel-border);padding:var(--spacing-sm);background:var(--bg-secondary);cursor:pointer;font-weight:600}.quiz-option.correct{border-color:var(--jade-green);background:var(--jade-green-light)}.quiz-option.incorrect{border-color:var(--primary-red);background:var(--primary-red-light)}@media (max-width: 640px){.quiz-options{grid-template-columns:1fr}}.quiz-feedback-text{min-height:1.5rem;color:var(--text-secondary)}.quiz-footer{margin-top:var(--spacing-md);display:flex;justify-content:space-between;align-items:center}.quiz-progress-text{color:var(--text-secondary)}.quiz-next-btn{display:inline-flex;align-items:center;gap:var(--spacing-xs)}.completion-container{text-align:center}.completion-icon{font-size:2rem;margin-bottom:var(--spacing-sm)}.completion-title{font-size:1.5rem;margin-bottom:var(--spacing-sm)}.completion-score{margin-bottom:var(--spacing-xl)}.completion-actions{display:flex;justify-content:center;gap:var(--spacing-lg);flex-wrap:wrap}.structured-lesson .score-circle{width:140px;height:140px;margin:0 auto var(--spacing-sm)}.dictation-game{max-width:100%;margin:0}.game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl);padding:var(--spacing-md);background:var(--bg-primary);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}.game-progress{flex:1;margin-right:var(--spacing-xl)}.progress-text{font-size:.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.game-score{font-size:1rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:var(--spacing-xs)}.dictation-level{display:flex;align-items:center;gap:var(--spacing-sm);margin-top:var(--spacing-sm)}.game-content{background:var(--bg-primary);padding:var(--spacing-xl);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);text-align:center}.audio-play-btn{width:100px;height:100px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));color:var(--text-inverse);border:none;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--spacing-sm);margin:0 auto var(--spacing-xl);transition:all var(--transition-base);box-shadow:var(--shadow-lg)}.audio-play-btn:hover:not(:disabled){transform:scale(1.05);box-shadow:var(--shadow-xl)}.audio-play-btn:disabled{opacity:.7;cursor:not-allowed}.play-hint{font-size:.875rem;font-weight:600}.dictation-input{font-size:1.5rem;text-align:center;padding:var(--spacing-lg);margin-bottom:var(--spacing-lg)}.input-actions{display:flex;gap:var(--spacing-md);justify-content:center}.answer-reveal{margin-top:var(--spacing-xl)}.reveal-card{padding:var(--spacing-xl);border-radius:var(--radius-lg);border:2px solid}.reveal-header{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md)}.reveal-card.correct{background:var(--jade-green-light);border-color:var(--jade-green)}.reveal-card.incorrect{background:#ffe5e7;border-color:var(--primary-red)}.reveal-hanzi{font-size:2.5rem;font-weight:700;font-family:var(--font-serif);margin-bottom:var(--spacing-sm)}.reveal-pinyin{font-size:1.1rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.reveal-translation{font-size:1rem;color:var(--text-primary);margin-bottom:var(--spacing-sm)}.your-answer{font-size:.9375rem;color:var(--text-secondary);padding-top:var(--spacing-md);border-top:1px solid var(--border-light)}.reveal-actions{margin-top:var(--spacing-lg);display:flex;justify-content:center;gap:var(--spacing-md);flex-wrap:wrap}.game-results{text-align:center;padding:var(--spacing-2xl)}.results-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-xl)}.results-score{margin-bottom:var(--spacing-2xl)}.score-circle{width:160px;height:160px;border-radius:var(--radius-full);background:linear-gradient(135deg,var(--primary-red-light),var(--jade-green-light));display:flex;align-items:center;justify-content:center;margin:0 auto var(--spacing-md);border:3px solid var(--primary-red)}.dictionary-page{display:flex;flex-direction:column;gap:var(--spacing-xl)}.dictionary-header{background:var(--panel-bg);padding:var(--spacing-lg);border-radius:var(--radius-lg);border:1px solid var(--panel-border);box-shadow:var(--shadow-sm)}.dictionary-subtitle{color:var(--text-secondary);margin-top:var(--spacing-xs)}.dictionary-search,.dictionary-search-box{position:relative}.dictionary-search-input{width:100%;padding:var(--spacing-md);border-radius:var(--radius-lg);border:1px solid var(--border-light);background:var(--bg-primary);font-size:.95rem;box-shadow:var(--shadow-sm)}.dictionary-clear-btn{position:absolute;right:var(--spacing-md);top:50%;transform:translateY(-50%);border:none;background:var(--primary-red-light);color:var(--primary-red);width:36px;height:36px;border-radius:var(--radius-full);cursor:pointer}.search-history-dropdown{position:absolute;top:calc(100% + var(--spacing-xs));left:0;right:0;background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:100;max-height:300px;overflow-y:auto}.search-history-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-sm) var(--spacing-md);border-bottom:1px solid var(--border-light);font-size:.85rem;font-weight:600;color:var(--text-secondary)}.search-history-clear{background:none;border:none;color:var(--primary-red);font-size:.8rem;cursor:pointer;padding:var(--spacing-xs);border-radius:var(--radius-sm);transition:all .2s ease}.search-history-clear:hover{background:var(--primary-red-light)}.search-history-item{width:100%;display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border:none;background:none;text-align:left;cursor:pointer;font-size:.9rem;color:var(--text-primary);transition:all .2s ease}.search-history-item:hover{background:var(--bg-secondary)}.search-history-item span:first-child{opacity:.5;font-size:.85rem}.dictionary-filter-group{margin-top:var(--spacing-md)}.filter-label{display:block;font-size:.85rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.dictionary-search-type-filters{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.search-type-chip{padding:var(--spacing-xs) var(--spacing-md);border-radius:var(--radius-full);border:1px solid var(--border-light);background:var(--bg-primary);color:var(--text-primary);font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s 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var(--spacing-lg);border-radius:var(--radius-full);border:1px solid var(--border-light);background:var(--bg-secondary);color:var(--text-primary);font-weight:600;cursor:pointer;transition:all var(--transition-base)}.audio-button:hover:not(:disabled){border-color:var(--primary-red);background:var(--primary-red-light);color:var(--primary-red);box-shadow:var(--shadow-sm)}.audio-button.playing{border-color:var(--jade-green);background:var(--jade-green-light);color:var(--jade-green)}.audio-button.error{border-color:var(--primary-red);color:var(--primary-red);cursor:not-allowed}.audio-icon{font-size:1.2rem}.audio-pulse{width:6px;height:6px;border-radius:50%;background:currentColor;animation:audio-pulse .8s infinite ease-in-out alternate}@keyframes 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var(--panel-border);background:var(--bg-primary)}.theme-actions{display:flex;justify-content:center}@media (max-width: 1100px){.theme-body{grid-template-columns:1fr}.theme-filter-panel{position:static}}@media (max-width: 768px){.theme-hero-panel{grid-template-columns:1fr}.word-header-controls{flex-direction:column;align-items:stretch}}.review-status-section{background:var(--panel-bg);border-radius:var(--radius-xl);border:1px solid var(--panel-border);padding:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg)}.rating-nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:var(--spacing-md)}.rating-chip{border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:var(--spacing-sm) var(--spacing-md);display:flex;justify-content:space-between;align-items:center;background:var(--bg-secondary);font-weight:600;cursor:pointer;transition:all 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var(--spacing-md);font-size:.9rem}.list-picker-panel .btn-primary{background:var(--primary-red);color:var(--text-inverse);border-radius:var(--radius-md)}.list-picker-panel .btn-secondary{border-radius:var(--radius-md)}.settings-page{padding:0 0 var(--spacing-2xl);max-width:var(--content-max-width);margin:0 auto var(--spacing-2xl);display:flex;flex-direction:column;gap:var(--spacing-2xl)}.settings-header .page-title{font-size:2.2rem;margin-bottom:var(--spacing-xs)}.settings-hero{background:var(--panel-bg);border-radius:var(--radius-xl);border:1px solid var(--panel-border);padding:var(--spacing-xl);display:grid;grid-template-columns:minmax(0,2fr) 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var(--spacing-xs);font-size:1rem;font-weight:600}.settings-card-header p{margin:0;color:var(--text-secondary);font-size:.9rem}.settings-toggle{display:flex;align-items:center;justify-content:space-between;border:none;background:var(--bg-primary);border-radius:var(--radius-full);padding:var(--spacing-sm) var(--spacing-md);cursor:pointer;font-weight:600;color:var(--text-secondary);border:1px solid transparent}.settings-toggle.on{color:var(--primary-red);border-color:#d8483e66;background:var(--primary-red-light)}.toggle-pill{width:42px;height:22px;border-radius:var(--radius-full);background:var(--bg-tertiary);position:relative;transition:background var(--transition-base)}.toggle-pill span{position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:var(--text-primary);transition:transform var(--transition-base)}.settings-toggle.on .toggle-pill{background:var(--primary-red)}.settings-toggle.on .toggle-pill 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var(--transition-base);box-shadow:var(--shadow-sm)}.change-photo-btn:hover:not(:disabled){background:var(--primary-red-hover);transform:scale(1.1)}.change-photo-btn:disabled{opacity:.6;cursor:not-allowed}.change-photo-text{display:none}.user-name-large{font-size:1.2rem;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-xs)}.user-email-text{font-size:.875rem;color:var(--text-tertiary);margin-bottom:var(--spacing-xs)}.user-level-text{font-size:.95rem;color:var(--text-secondary)}.theme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--spacing-lg)}.theme-card{background:var(--bg-secondary);border:2px solid var(--border-light);border-radius:var(--radius-lg);padding:var(--spacing-md);cursor:pointer;transition:all var(--transition-base);display:flex;flex-direction:column;gap:var(--spacing-sm)}.theme-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--border-medium)}.theme-card.active{border-color:var(--primary-red);background:var(--primary-red-light);box-shadow:var(--shadow-md)}.theme-preview{display:flex;gap:var(--spacing-sm);height:60px}.theme-color{flex:1;border-radius:var(--radius-md);border:1px solid var(--border-light)}.theme-info{display:flex;flex-direction:column;gap:var(--spacing-xs)}.theme-name{font-weight:600;font-size:1rem;color:var(--text-primary)}.theme-active-badge{display:inline-flex;align-items:center;gap:var(--spacing-xs);font-size:.85rem;color:var(--primary-red);font-weight:600}@media (max-width: 768px){.settings-layout{grid-template-columns:1fr;gap:var(--spacing-lg)}.settings-sidebar{position:static;display:flex;overflow-x:auto;padding:var(--spacing-sm)}.settings-nav-item{white-space:nowrap}.theme-grid{grid-template-columns:1fr}}[data-theme=asian-red]{--primary-red: #D8483E;--primary-red-hover: #C53830;--primary-red-light: #FFE3E0;--jade-green: #2F9D8A;--gold-accent: #F0B762;--welcome-gradient: linear-gradient(135deg, rgba(216, 72, 62, .92), rgba(240, 183, 98, .7));--body-bg: linear-gradient(135deg, #fffdf8 0%, #fdeee1 100%);--sidebar-bg: linear-gradient(180deg, rgba(255, 244, 240, .95), rgba(254, 228, 210, .9))}[data-theme=jade-green]{--primary-red: #2F9D8A;--primary-red-hover: #258372;--primary-red-light: #E3F5F2;--jade-green: #D8483E;--gold-accent: #F4A261;--welcome-gradient: linear-gradient(135deg, rgba(47, 157, 138, .95), rgba(244, 162, 97, .75));--body-bg: linear-gradient(135deg, #f0fff5 0%, #daf5eb 100%);--sidebar-bg: linear-gradient(180deg, rgba(227, 245, 242, .95), rgba(210, 235, 226, .9))}[data-theme=royal-purple]{--primary-red: #8B5CF6;--primary-red-hover: #7C3AED;--primary-red-light: #EDE9FE;--jade-green: #EC4899;--gold-accent: #F59E0B;--welcome-gradient: linear-gradient(135deg, rgba(139, 92, 246, .95), rgba(236, 72, 153, .7));--body-bg: linear-gradient(135deg, #f7f4ff 0%, #fce7f3 100%);--sidebar-bg: linear-gradient(180deg, rgba(245, 240, 255, .95), rgba(250, 235, 248, .9))}[data-theme=ocean-blue]{--primary-red: #3B82F6;--primary-red-hover: #2563EB;--primary-red-light: #DBEAFE;--jade-green: #06B6D4;--gold-accent: #10B981;--welcome-gradient: linear-gradient(135deg, rgba(59, 130, 246, .9), rgba(14, 165, 233, .7));--body-bg: linear-gradient(135deg, #e0f2fe 0%, #d1fae5 100%);--sidebar-bg: linear-gradient(180deg, rgba(222, 239, 254, .95), rgba(209, 250, 229, .9))}[data-theme=sunset-orange]{--primary-red: #F97316;--primary-red-hover: #EA580C;--primary-red-light: #FFEDD5;--jade-green: #EF4444;--gold-accent: #FBBF24;--welcome-gradient: linear-gradient(135deg, rgba(249, 115, 22, .95), rgba(251, 191, 36, .7));--body-bg: linear-gradient(135deg, #fff7ed 0%, #fff0da 100%);--sidebar-bg: linear-gradient(180deg, rgba(255, 240, 221, .95), rgba(255, 228, 203, .9))}[data-theme=sakura-pink]{--primary-red: #EC4899;--primary-red-hover: #DB2777;--primary-red-light: #FCE7F3;--jade-green: #F472B6;--gold-accent: #FDE047;--welcome-gradient: linear-gradient(135deg, rgba(236, 72, 153, .95), rgba(253, 224, 71, .55));--body-bg: linear-gradient(135deg, #fff0f6 0%, #fdeff5 100%);--sidebar-bg: linear-gradient(180deg, rgba(255, 235, 245, .95), rgba(252, 226, 242, .9))}.handwriting-practice{max-width:600px;margin:0 auto;padding:var(--spacing-2xl)}.handwriting-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xl)}.handwriting-title{font-size:2rem;font-weight:700;color:var(--text-primary)}.handwriting-progress{font-size:1.1rem;font-weight:600;color:var(--text-secondary);background:var(--bg-secondary);padding:var(--spacing-sm) var(--spacing-lg);border-radius:var(--radius-full)}.handwriting-character-info{display:flex;align-items:center;gap:var(--spacing-xl);background:var(--bg-primary);padding:var(--spacing-xl);border-radius:var(--radius-lg);margin-bottom:var(--spacing-xl);border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.handwriting-character-display{font-size:6rem;font-weight:700;color:var(--primary-red);font-family:var(--font-serif);line-height:1}.handwriting-character-details{flex:1}.handwriting-pinyin{font-size:1.5rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.handwriting-translation{font-size:1.2rem;color:var(--text-primary);font-weight:500}.handwriting-canvas-container{position:relative;background:var(--bg-primary);border:2px solid var(--border-medium);border-radius:var(--radius-lg);margin-bottom:var(--spacing-xl);overflow:hidden;box-shadow:var(--shadow-md)}.handwriting-canvas{display:block;width:100%;height:400px;cursor:crosshair;touch-action:none}.handwriting-guide{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:.08}.handwriting-guide-character{font-size:18rem;font-weight:700;color:var(--primary-red);font-family:var(--font-serif);line-height:1}.handwriting-controls{display:flex;gap:var(--spacing-lg);align-items:center}.handwriting-controls .btn-secondary{padding:var(--spacing-md) var(--spacing-xl);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base)}.handwriting-controls .btn-secondary:hover:not(:disabled){background:var(--bg-tertiary);border-color:var(--border-medium);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.handwriting-controls .btn-secondary:disabled{opacity:.4;cursor:not-allowed}.handwriting-controls .btn-primary{padding:var(--spacing-md) var(--spacing-xl);background:var(--primary-red);color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-base)}.handwriting-controls .btn-primary:hover{background:var(--primary-red-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.handwriting-nav{flex:1;display:flex;gap:var(--spacing-md);justify-content:flex-end}.handwriting-empty{padding:var(--spacing-2xl);text-align:center;color:var(--text-secondary);font-size:1.2rem}.handwriting-grid{display:flex;gap:var(--spacing-md);justify-content:center;flex-wrap:wrap;margin-bottom:var(--spacing-xl)}.handwriting-box{width:180px;height:180px;border:2px solid var(--border-medium);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;background:var(--bg-primary);cursor:pointer;transition:all var(--transition-base);position:relative}.handwriting-box:hover:not(.active){border-color:var(--primary-red);background:var(--bg-secondary)}.handwriting-box.active{border-color:var(--primary-red);border-width:3px;box-shadow:var(--shadow-lg)}.handwriting-box.completed{background:var(--accent-green-light, #e8f5e9);border-color:var(--accent-green, #4caf50)}.handwriting-box.completed:after{content:"✓";position:absolute;top:8px;right:8px;font-size:1.2rem;color:var(--accent-green, #4caf50)}.handwriting-box-character{font-size:5rem;font-weight:700;color:var(--text-tertiary);font-family:var(--font-serif);opacity:.3}.handwriting-box.completed .handwriting-box-character{opacity:.5;color:var(--accent-green, #4caf50)}.handwriting-box .handwriting-canvas-container{width:100%;height:100%;margin-bottom:0;border:none;border-radius:var(--radius-md)}.handwriting-box .handwriting-canvas{height:100%}.handwriting-box .handwriting-guide-character{font-size:8rem}@media (max-width: 768px){.handwriting-practice{padding:var(--spacing-lg)}.handwriting-character-info{flex-direction:column;text-align:center;gap:var(--spacing-md)}.handwriting-character-display{font-size:4rem}.handwriting-canvas{height:300px}.handwriting-guide-character{font-size:12rem}.handwriting-controls{flex-direction:column;gap:var(--spacing-md)}.handwriting-nav{width:100%;justify-content:space-between}.handwriting-box{width:140px;height:140px}.handwriting-box-character{font-size:4rem}.handwriting-box .handwriting-guide-character{font-size:6rem}}.mini-games-page{padding:0;max-width:var(--content-max-width);margin:0 auto var(--spacing-2xl);width:100%}.mini-games-header{margin-bottom:var(--spacing-2xl)}.mini-games-empty{text-align:center;padding:var(--spacing-2xl);background:var(--bg-secondary);border-radius:var(--radius-lg);margin:var(--spacing-2xl) 0}.empty-message{font-size:1.1rem;color:var(--text-secondary)}.mini-games-stats{margin-bottom:var(--spacing-2xl)}.mini-games-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);margin-top:var(--spacing-lg)}.mini-game-stat-card{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-lg);background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.mini-game-stat-icon{font-size:2.5rem}.mini-game-stat-name{font-size:.95rem;color:var(--text-secondary);text-align:center}.mini-game-stat-score{font-size:1.8rem;font-weight:700;color:var(--primary-red)}.mini-games-selection{margin-bottom:var(--spacing-2xl)}.mini-games-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md);margin-top:var(--spacing-md)}.mini-game-card{background:var(--bg-primary);border:2px solid var(--border-light);border-radius:var(--radius-lg);padding:var(--spacing-2md);cursor:pointer;transition:all var(--transition-base);text-align:center;display:flex;flex-direction:column;gap:var(--spacing-md)}.mini-game-card:hover:not(.disabled){transform:translateY(-4px);border-color:var(--primary-red);box-shadow:var(--shadow-md)}.mini-game-card.disabled{opacity:.5;cursor:not-allowed}.mini-game-icon{font-size:4rem;margin-bottom:var(--spacing-sm)}.mini-game-name{font-size:1rem;font-weight:600;color:var(--text-primary)}.mini-game-description{font-size:1rem;color:var(--text-secondary);padding-bottom:10%}.mini-game-locked{font-size:.9rem;color:var(--primary-red);font-weight:600;margin-top:var(--spacing-sm)}.game-container{position:relative;background:var(--bg-primary);border-radius:var(--radius-lg);padding:var(--spacing-2xl);box-shadow:var(--shadow-md)}.game-back-btn{position:absolute;top:var(--spacing-lg);left:var(--spacing-lg);padding:var(--spacing-sm) var(--spacing-lg);background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);color:var(--text-primary);font-weight:600;cursor:pointer;transition:all var(--transition-base)}.game-back-btn:hover{background:var(--bg-tertiary);transform:translate(-2px)}.memory-game{max-width:600px;margin:0 auto;padding-top:var(--spacing-xl)}.memory-game-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-2xl);flex-wrap:wrap;gap:var(--spacing-lg)}.memory-game-title{font-size:1.8rem;font-weight:700;color:var(--text-primary)}.memory-game-stats{display:flex;gap:var(--spacing-xl)}.memory-stat{font-size:1.1rem;color:var(--text-secondary)}.memory-stat strong{color:var(--primary-red);font-size:1.3rem}.memory-cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-lg);margin-bottom:var(--spacing-2xl)}.memory-card{aspect-ratio:1;background:transparent;border:none;perspective:1000px;cursor:pointer}.memory-card-inner{position:relative;width:100%;height:100%;transition:transform .6s;transform-style:preserve-3d}.memory-card.flipped .memory-card-inner{transform:rotateY(180deg)}.memory-card-front,.memory-card-back{position:absolute;width:100%;height:100%;backface-visibility:hidden;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);font-size:1.5rem;font-weight:700;box-shadow:var(--shadow-sm)}.memory-card-front{background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));color:var(--text-inverse);font-size:3rem}.memory-card-back{background:var(--bg-secondary);color:var(--text-primary);transform:rotateY(180deg);border:2px solid var(--border-medium)}.memory-card.matched .memory-card-back{background:var(--primary-red-light);border-color:var(--primary-red)}.hanzi-card .memory-card-back{font-family:var(--font-serif);font-size:2.5rem}.translation-card .memory-card-back{font-size:1.2rem;padding:var(--spacing-sm);text-align:center}.memory-reset-btn{display:block;margin:0 auto;padding:var(--spacing-md) var(--spacing-2xl)}.speed-quiz-start,.falling-game-start{display:flex;align-items:center;justify-content:center;min-height:400px;padding:var(--spacing-2xl)}.speed-quiz-intro,.falling-game-intro{text-align:center;max-width:100%;background:var(--bg-secondary);padding:var(--spacing-2xl);border-radius:var(--radius-lg);border:1px solid var(--border-light)}.speed-quiz-title,.falling-game-title{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg)}.speed-quiz-description,.falling-game-description{font-size:1.1rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.speed-quiz-start-btn,.falling-game-start-btn{padding:var(--spacing-lg) var(--spacing-2xl);font-size:1.2rem}.speed-quiz-game{max-width:600px;margin:0 auto;padding-top:var(--spacing-xl)}.speed-quiz-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg);background:var(--bg-secondary);border-radius:var(--radius-lg);margin-bottom:var(--spacing-2xl)}.speed-quiz-timer{font-size:1.5rem;font-weight:700;color:var(--primary-red)}.speed-quiz-score{font-size:1.3rem;font-weight:600;color:var(--text-primary)}.speed-quiz-question{text-align:center}.speed-quiz-character{font-size:5rem;font-weight:700;color:var(--primary-red);font-family:var(--font-serif);margin-bottom:var(--spacing-sm)}.speed-quiz-pinyin{font-size:1.5rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl)}.speed-quiz-prompt{font-size:1.2rem;color:var(--text-primary);margin-bottom:var(--spacing-lg);font-weight:600}.speed-quiz-options{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--spacing-lg)}.speed-quiz-option{padding:var(--spacing-lg);background:var(--bg-secondary);border:2px solid var(--border-light);border-radius:var(--radius-md);font-size:1.1rem;font-weight:600;color:var(--text-primary);cursor:pointer;transition:all var(--transition-base)}.speed-quiz-option:hover:not(:disabled){border-color:var(--primary-red);transform:scale(1.05)}.speed-quiz-option.correct{background:#d4edda;border-color:#28a745;color:#155724}.speed-quiz-option.show-correct{background:#fff3cd;border-color:#ffc107}.falling-game{max-width:600px;margin:0 auto;padding-top:var(--spacing-xl)}.falling-game-header{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-lg);background:var(--bg-secondary);border-radius:var(--radius-lg);margin-bottom:var(--spacing-lg)}.falling-game-target{display:flex;align-items:center;gap:var(--spacing-md)}.falling-target-label{font-size:1rem;color:var(--text-secondary);font-weight:600}.falling-target-text{font-size:1.5rem;font-weight:700;color:var(--primary-red)}.falling-game-stats{display:flex;gap:var(--spacing-lg);font-size:1.2rem;font-weight:600}.falling-stat{color:var(--text-primary)}.falling-game-area{position:relative;width:100%;height:500px;background:var(--bg-primary);border:2px solid var(--border-medium);border-radius:var(--radius-lg);overflow:hidden}.falling-character{position:absolute;padding:var(--spacing-md);background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));color:var(--text-inverse);border:none;border-radius:var(--radius-md);font-size:2rem;font-weight:700;font-family:var(--font-serif);cursor:pointer;transition:transform .1s;box-shadow:var(--shadow-sm);min-width:60px;min-height:60px;display:flex;align-items:center;justify-content:center}.falling-character:hover{transform:scale(1.1)}.sentence-builder-game{max-width:720px;margin:0 auto;padding-top:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg)}.sentence-builder-header{display:flex;justify-content:space-between;color:var(--text-secondary);font-weight:600}.sentence-builder-card{background:var(--bg-primary);border-radius:var(--radius-xl);border:1px solid var(--border-light);padding:var(--spacing-xl);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:var(--spacing-lg)}.sentence-builder-translation{font-size:1rem;color:var(--text-secondary);display:flex;flex-direction:column;gap:var(--spacing-xs)}.sentence-builder-translation span{font-size:1.1rem;color:var(--text-primary)}.sentence-builder-hanzi{font-size:1.6rem;font-family:var(--font-serif);color:var(--text-primary)}.sentence-builder-selected{min-height:64px;background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-sm);display:flex;flex-wrap:wrap;gap:var(--spacing-sm);border:1px dashed var(--border-light)}.sentence-builder-placeholder{color:var(--text-secondary);font-size:.9rem}.sentence-builder-selected-token{background:var(--primary-red-light);border:none;border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md);font-weight:600;cursor:pointer}.sentence-builder-options{display:flex;flex-wrap:wrap;gap:var(--spacing-sm)}.sentence-token{border-radius:var(--radius-md);border:1px solid var(--border-light);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-secondary);cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast);font-weight:600}.sentence-token:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-sm)}.sentence-token.selected,.sentence-token:disabled{opacity:.5;cursor:default}.sentence-builder-actions{display:flex;justify-content:space-between;gap:var(--spacing-md)}.sentence-builder-feedback{text-align:center;font-weight:600}.sentence-builder-feedback.success{color:var(--jade-green)}.sentence-builder-feedback.error{color:var(--primary-red)}.sentence-builder-empty,.pinyin-typing-empty{min-height:260px;display:flex;align-items:center;justify-content:center;text-align:center;background:var(--bg-secondary);border-radius:var(--radius-lg);padding:var(--spacing-lg);color:var(--text-secondary)}.pinyin-typing-game{max-width:560px;margin:0 auto;padding-top:var(--spacing-xl);display:flex;flex-direction:column;gap:var(--spacing-lg)}.pinyin-typing-header{display:flex;justify-content:space-between;color:var(--text-secondary);font-weight:600}.pinyin-typing-card{background:var(--bg-primary);border-radius:var(--radius-xl);border:1px solid var(--border-light);padding:var(--spacing-xl);box-shadow:var(--shadow-sm)}.pinyin-typing-character{font-size:3rem;text-align:center;margin-bottom:var(--spacing-md)}.pinyin-typing-translation{text-align:center;color:var(--text-secondary);display:flex;flex-direction:column;gap:var(--spacing-xxs);margin-bottom:var(--spacing-lg)}.pinyin-typing-translation span{color:var(--text-primary);font-size:1.1rem}.pinyin-typing-form{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm)}.pinyin-typing-input{flex:1;border-radius:var(--radius-lg);border:2px solid var(--border-light);padding:var(--spacing-sm) var(--spacing-md);font-size:1.1rem}.pinyin-typing-feedback{text-align:center;font-weight:600;margin-top:var(--spacing-sm)}.pinyin-typing-feedback.error{color:var(--primary-red)}.pinyin-typing-feedback.success{color:var(--jade-green)}.pinyin-typing-actions{display:flex;justify-content:space-between;gap:var(--spacing-md)}.game-results{display:flex;align-items:center;justify-content:center;min-height:400px;padding:var(--spacing-2xl)}.game-results-card{text-align:center;max-width:100%;background:var(--bg-secondary);padding:var(--spacing-2xl);border-radius:var(--radius-lg);border:2px solid var(--primary-red);box-shadow:var(--shadow-lg)}.game-results-title{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-xl)}.game-results-score{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl)}.game-results-label{font-size:1.2rem;color:var(--text-secondary);font-weight:600}.game-results-value{font-size:4rem;font-weight:700;color:var(--primary-red)}.game-results-game{font-size:1.3rem;color:var(--text-secondary);margin-bottom:var(--spacing-2xl)}.game-results-actions{display:flex;gap:var(--spacing-lg);justify-content:center}.game-results-actions .btn-primary,.game-results-actions .btn-secondary{padding:var(--spacing-md) var(--spacing-xl);font-size:1.1rem}@media (max-width: 768px){.mini-games-page{padding:var(--spacing-lg)}.mini-games-grid{grid-template-columns:1fr}.memory-cards-grid{grid-template-columns:repeat(3,1fr);gap:var(--spacing-sm)}.speed-quiz-options{grid-template-columns:1fr}.falling-game-area{height:400px}.falling-character{min-width:50px;min-height:50px;font-size:1.5rem}}.learning-progress-chart-section{margin:var(--spacing-xl) 0;padding:var(--spacing-xl);background:var(--bg-primary);border-radius:var(--radius-lg);border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.learning-progress-chart-section .section-title{font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-tertiary);margin:0 0 var(--spacing-lg) 0}.chart-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.chart-stat{display:flex;flex-direction:column;align-items:center;padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border-light)}.chart-stat-value{font-size:2.5rem;font-weight:700;color:var(--primary-red);line-height:1.2;margin-bottom:var(--spacing-xs)}.chart-stat-label{font-size:.875rem;color:var(--text-secondary);text-align:center;line-height:1.4}.chart-container{margin:var(--spacing-lg) 0;padding:var(--spacing-md);background:var(--bg-secondary);border-radius:var(--radius-md);border:1px solid var(--border-light)}.chart-description{margin-top:var(--spacing-lg);padding:var(--spacing-md);font-size:.875rem;line-height:1.6;color:var(--text-secondary);background:var(--bg-accent);border-radius:var(--radius-sm);border-left:3px solid var(--primary-red)}@media (max-width: 768px){.learning-progress-chart-section{padding:var(--spacing-lg)}.chart-summary{grid-template-columns:1fr;gap:var(--spacing-md)}.chart-stat-value{font-size:2rem}.chart-container{padding:var(--spacing-sm)}.chart-description{font-size:.8125rem}}.btn-signin{padding:var(--spacing-sm) var(--spacing-lg);background:var(--primary-red);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition-base);font-size:.9rem}.btn-signin:hover{background:var(--primary-red-hover);transform:translateY(-1px)}.user-profile{margin:var(--spacing-md) var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-light)}.user-profile-button{width:100%;display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-sm);background:var(--bg-secondary);border:1px solid 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0 var(--spacing-md);font-size:1.5rem;font-weight:700;color:var(--text-primary)}.modal-description{margin:0 0 var(--spacing-xl);color:var(--text-secondary);line-height:1.6}.modal-actions{display:flex;gap:var(--spacing-md);justify-content:flex-end}.modal-actions button{min-width:120px}.modal-close{position:absolute;top:var(--spacing-md);right:var(--spacing-md);background:none;border:none;font-size:2rem;line-height:1;cursor:pointer;color:var(--text-secondary);transition:var(--transition-fast);padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center}.modal-close:hover{color:var(--text-primary)}.auth-modal{padding:var(--spacing-2xl)}.auth-title{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0 0 var(--spacing-sm) 0;text-align:center}.auth-subtitle{color:var(--text-secondary);text-align:center;margin:0 0 var(--spacing-xl) 0;font-size:.9375rem}.auth-error{padding:var(--spacing-md);background:#dc26261a;border:1px solid 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768px){.auth-modal{padding:var(--spacing-xl)}.modal-overlay{padding:var(--spacing-md)}}.login-page-wrapper{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;background:var(--app-bg);padding:var(--spacing-xl);overflow-y:auto;z-index:9999}.login-page-content{width:100%;max-width:480px;display:flex;flex-direction:column;gap:var(--spacing-2xl);margin:auto}.login-header{text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--spacing-lg)}.login-logo{width:180px;height:180px;object-fit:contain;filter:drop-shadow(0 4px 12px rgba(216,72,62,.15))}.logo-icon-large{font-size:6rem;display:block}.login-title{font-size:2.5rem;font-weight:700;color:var(--text-primary);margin:0;background:linear-gradient(135deg,var(--primary-red),var(--gold-accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{font-size:1.125rem;color:var(--text-secondary);margin:0}.login-language-switcher{display:flex;justify-content:center}.login-page-wrapper .modal-overlay{position:static;background:none;padding:0}.login-page-wrapper .modal-content{max-width:none;width:100%}.login-page-wrapper .modal-close{display:none}@media (max-width: 768px){.login-page-wrapper{padding:var(--spacing-md)}.login-logo{width:140px;height:140px}.login-title{font-size:2rem}.login-subtitle{font-size:1rem}}.subscription-gate{grid-column:1 / -1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:72px 24px;background:radial-gradient(circle at top,rgba(216,72,62,.15),transparent 55%),radial-gradient(circle at 30% 20%,rgba(47,157,138,.18),transparent 45%)}.subscription-pricing{width:min(1100px,100%);background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-xl);padding:clamp(28px,4vw,44px);box-shadow:var(--shadow-lg);display:grid;gap:32px;position:relative;overflow:hidden}.subscription-pricing:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(rgba(216,72,62,.18) 1px,transparent 1px),radial-gradient(rgba(47,157,138,.2) 1px,transparent 1px);background-size:90px 90px,140px 140px;opacity:.2;pointer-events:none}.subscription-header{text-align:center;max-width:720px;margin:0 auto;position:relative;z-index:1}.subscription-badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 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h2{margin-bottom:16px;font-size:1.25rem}.subscription-benefits-list{list-style:none;display:grid;gap:12px;margin:0;padding:0}.subscription-benefit{display:flex;gap:10px;align-items:flex-start;color:var(--text-primary);font-weight:500}.subscription-check{width:20px;height:20px;border-radius:var(--radius-full);display:inline-flex;align-items:center;justify-content:center;background:var(--jade-green-light);color:var(--jade-green);font-size:.75rem;flex-shrink:0;margin-top:2px}.subscription-cards{display:grid;gap:16px}.subscription-plan-card{background:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm);display:grid;gap:16px;position:relative}.subscription-plan-card.is-featured{border-color:var(--primary-red);box-shadow:var(--shadow-md)}.plan-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.plan-header h3{margin-bottom:4px}.plan-description{color:var(--text-secondary);font-size:.95rem}.plan-badge{padding:4px 10px;border-radius:var(--radius-full);background:var(--primary-red-light);color:var(--primary-red);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}.plan-price-row{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.plan-price{font-size:2rem;font-weight:700;color:var(--text-primary)}.plan-price-note{color:var(--text-secondary);font-size:.9rem}.plan-features{list-style:none;display:grid;gap:10px;margin:0;padding:0}.plan-feature{display:flex;gap:10px;align-items:flex-start;color:var(--text-primary);font-weight:500}.plan-cta{width:100%;padding:12px 18px;border-radius:var(--radius-full);border:1px solid var(--primary-red);background:transparent;color:var(--primary-red);font-weight:700;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.plan-cta.primary{background:var(--primary-red);border-color:var(--primary-red);color:var(--text-inverse)}.plan-cta:disabled{opacity:.6;cursor:not-allowed}.plan-cta:not(:disabled):hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.subscription-footer{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;position:relative;z-index:1}.subscription-disclaimer{color:var(--text-tertiary);font-size:.9rem}.subscription-login{padding:12px 20px;border-radius:var(--radius-full);border:none;background:var(--text-primary);color:var(--text-inverse);font-weight:600;cursor:pointer}@media (max-width: 980px){.subscription-body{grid-template-columns:1fr}}@media (max-width: 720px){.subscription-pricing{padding:28px 20px}.plan-price{font-size:1.6rem}}.subscription-card-panel{display:flex;flex-direction:column;gap:12px}.subscription-status-row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}.subscription-actions{display:flex;align-items:center}.subscription-lifetime{font-weight:600;color:var(--jade-green);background:var(--jade-green-light);padding:8px 12px;border-radius:var(--radius-full)}.subscription-plan-buttons{display:flex;gap:12px;flex-wrap:wrap}.status-active{color:#16a34a;font-weight:600}.status-inactive{color:#dc2626;font-weight:600}.subscription-renewal{margin-top:4px;color:#6b7280}.subscription-loading{min-height:50vh;display:flex;align-items:center;justify-content:center;font-weight:600;color:#6b7280}.subscription-comparison-table{width:100%;overflow-x:auto}.subscription-comparison-table table{width:100%;border-collapse:collapse;margin-top:12px}.subscription-comparison-table th,.subscription-comparison-table td{border:1px solid var(--border-primary);padding:10px 12px;text-align:left}.subscription-comparison-table thead th{background:var(--bg-tertiary);font-weight:700}.settings-subscription-section{width:100%;position:relative;overflow:hidden;background:radial-gradient(circle at 20% 0%,color-mix(in srgb,var(--primary-red) 14%,transparent),transparent 42%),radial-gradient(circle at 80% 20%,color-mix(in srgb,var(--gold-accent) 14%,transparent),transparent 48%),var(--panel-bg)}.settings-subscription-header{text-align:center;display:flex;flex-direction:column;gap:var(--spacing-xs)}.settings-subscription-kicker{margin:0;color:var(--text-tertiary);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700}.settings-subscription-title{margin:0;font-size:clamp(1.9rem,4vw,2.8rem);letter-spacing:-.02em;line-height:1.08}.settings-subscription-title span{color:color-mix(in srgb,var(--gold-accent) 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38%,transparent)}.settings-subscription-status-actions{display:flex;gap:var(--spacing-sm);align-items:center;flex-wrap:wrap}.settings-subscription-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--spacing-lg)}.settings-subscription-card{border-radius:var(--radius-xl);border:1px solid var(--panel-border);background:color-mix(in srgb,var(--bg-primary) 92%,transparent);padding:var(--spacing-xl);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:var(--spacing-md);position:relative}.settings-subscription-card.is-featured{border-color:color-mix(in srgb,var(--primary-red) 55%,var(--panel-border));box-shadow:var(--shadow-md)}.settings-subscription-top-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);border-radius:var(--radius-full);padding:.3rem .85rem;background:color-mix(in srgb,var(--gold-accent) 75%,#f8d674);color:#3b2a00;font-size:.75rem;font-weight:700}.settings-subscription-card-head h3{margin:0;font-size:1.52rem}.settings-subscription-card-head p{margin:.25rem 0 0;color:var(--text-secondary)}.settings-subscription-price-row{display:flex;align-items:baseline;gap:.42rem;flex-wrap:wrap}.settings-subscription-price{font-size:2.75rem;line-height:1;font-weight:800;color:var(--text-primary)}.settings-subscription-price-period{font-size:1.28rem;font-weight:600;color:var(--text-secondary)}.settings-subscription-price-note{margin:-.35rem 0 0;color:var(--text-secondary)}.settings-subscription-highlight-pill{display:inline-flex;align-items:center;gap:.5rem;align-self:flex-start;padding:.45rem .85rem;border-radius:var(--radius-full);border:1px solid color-mix(in srgb,var(--jade-green) 38%,transparent);color:color-mix(in srgb,var(--jade-green) 82%,var(--text-primary));background:color-mix(in srgb,var(--jade-green-light) 74%,transparent);font-weight:700;font-size:.88rem}.settings-subscription-feature-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.62rem}.settings-subscription-feature-item{display:flex;align-items:center;gap:.55rem;color:var(--text-primary);font-weight:500;flex-wrap:wrap}.settings-subscription-check{color:color-mix(in srgb,var(--gold-accent) 78%,var(--primary-red));font-weight:800}.settings-subscription-feature-badge{border-radius:999px;padding:.16rem .5rem;background:color-mix(in srgb,var(--gold-accent) 30%,var(--bg-secondary));color:color-mix(in srgb,var(--gold-accent) 80%,var(--text-primary));font-size:.72rem;font-weight:700}.settings-subscription-bonus-list{display:flex;flex-direction:column;gap:.55rem}.settings-subscription-bonus-item{margin:0;border-radius:var(--radius-md);border:1px solid color-mix(in srgb,var(--gold-accent) 30%,var(--panel-border));background:color-mix(in srgb,var(--bg-secondary) 72%,var(--gold-accent) 9%);padding:.58rem .74rem;color:var(--text-secondary);font-size:.9rem}.settings-subscription-cta{margin-top:auto;width:100%}.settings-subscription-disclaimer{text-align:center;margin:0;color:var(--text-tertiary);font-size:.9rem}.settings-subscription-proof{display:inline-flex;align-self:center;flex-wrap:wrap;justify-content:center;gap:var(--spacing-sm);padding:.4rem .8rem;border-radius:var(--radius-full);border:1px solid var(--border-light);background:color-mix(in srgb,var(--bg-secondary) 94%,transparent);font-weight:600}@media (max-width: 960px){.settings-subscription-grid{grid-template-columns:1fr}}@media (max-width: 640px){.settings-subscription-section,.settings-subscription-card{padding:var(--spacing-lg)}.settings-subscription-price{font-size:2.15rem}.settings-subscription-status-bar{padding:var(--spacing-sm) var(--spacing-md)}}.home-s-dashboard{display:grid;grid-template-columns:1fr 300px;gap:24px;max-width:var(--content-max-width);margin:0 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var(--panel-border);border-radius:14px;background:color-mix(in srgb,var(--panel-bg) 92%,transparent);padding:16px}.home-s-objectives-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.home-s-objectives-header h2{margin:0;font-size:1rem;font-weight:700;color:var(--text-primary)}.home-s-objectives-badge{background:color-mix(in srgb,var(--primary-red) 12%,var(--panel-bg));color:var(--primary-red);font-weight:700;font-size:.82rem;padding:3px 10px;border-radius:var(--radius-full);border:1px solid color-mix(in srgb,var(--primary-red) 20%,transparent)}.home-s-objectives-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.home-s-objective{display:flex;align-items:center;gap:10px;padding:6px 0;border-bottom:1px solid color-mix(in srgb,var(--panel-border) 60%,transparent)}.home-s-objective:last-child{border-bottom:none}.home-s-objective.done 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var(--lvb-border);background:#fff;color:var(--lvb-text);width:40px;height:40px;border-radius:12px;font-size:18px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.lvb-back:hover{background:var(--lvb-border)}.lvb-head-main{display:flex;flex-direction:column;gap:2px}.lvb-head-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--lvb-primary);font-weight:700}.lvb-head-title{margin:0;font-size:22px;font-weight:700;display:inline-flex;align-items:center;gap:8px}.lvb-head-emoji{font-size:24px}.lvb-card{background:var(--lvb-card-bg);border:1px solid var(--lvb-border);border-radius:var(--lvb-radius);padding:24px;box-shadow:0 2px 10px #c6302c0a}.lvb-card--hero{background:linear-gradient(180deg,#fff8ec,#fff 60%)}.lvb-card-lead{margin:0 0 20px;font-size:15px;line-height:1.55;color:var(--lvb-text)}.lvb-stakes{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:12px}.lvb-stakes li{display:flex;gap:14px;align-items:center;padding:12px 14px;border:1px solid var(--lvb-border);border-radius:var(--lvb-radius-sm);background:#fff}.lvb-stake-icon{font-size:22px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--lvb-gold-soft)}.lvb-stakes strong{display:block;font-size:15px;font-weight:700}.lvb-stakes span{font-size:13px;color:var(--lvb-text-muted)}.lvb-banner{display:flex;gap:12px;padding:12px 14px;border-radius:var(--lvb-radius-sm);margin-bottom:16px;align-items:center}.lvb-banner--passed{background:var(--lvb-jade-soft);border:1px solid var(--lvb-jade)}.lvb-banner--legacy{background:var(--lvb-amber-soft);border:1px solid var(--lvb-gold)}.lvb-banner--retry{background:var(--lvb-coral-soft);border:1px solid #e8baa5}.lvb-banner-icon{font-size:22px;width:36px;text-align:center}.lvb-banner strong{display:block;font-size:14px;font-weight:700}.lvb-banner span{font-size:13px;color:var(--lvb-text-muted)}.lvb-btn{border:none;border-radius:var(--lvb-radius-sm);padding:10px 18px;font-size:14px;font-weight:700;cursor:pointer;transition:background .12s ease,transform .12s ease}.lvb-btn:disabled{opacity:.55;cursor:not-allowed}.lvb-btn--primary{background:var(--lvb-primary);color:#fff}.lvb-btn--primary:hover:not(:disabled){background:var(--lvb-primary-dark)}.lvb-btn--ghost{background:transparent;color:var(--lvb-text);border:1px solid var(--lvb-border)}.lvb-btn--ghost:hover{background:var(--lvb-border)}.lvb-btn--lg{padding:13px 22px;font-size:15px}.lvb-actions{display:flex;gap:10px;flex-wrap:wrap}.lvb-progress{flex:1;display:flex;flex-direction:column;gap:6px}.lvb-progress-text{display:flex;justify-content:space-between;font-size:12px;color:var(--lvb-text-muted);font-variant-numeric:tabular-nums}.lvb-progress-bar{height:6px;border-radius:6px;background:var(--lvb-border);overflow:hidden}.lvb-progress-bar>div{height:100%;background:linear-gradient(90deg,var(--lvb-primary) 0%,var(--lvb-gold) 100%);transition:width .2s ease}.lvb-card--quiz{display:flex;flex-direction:column;gap:14px}.lvb-tag{align-self:flex-start;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;background:var(--lvb-gold-soft);color:#8a6200}.lvb-tag--grammar{background:#e0e7ff;color:#3730a3}.lvb-tag--dialogue{background:#e0f2fe;color:#075985}.lvb-tag--culture{background:#fce7f3;color:#831843}.lvb-tag--characters{background:#fff1f2;color:#9f1239}.lvb-tag--tones{background:#d8efe4;color:#065f46}.lvb-q-prompt{margin:6px 0 4px;font-size:18px;line-height:1.4;font-weight:700}.lvb-q-context{margin:0 0 8px;padding:10px 12px;background:var(--lvb-amber-soft);border-left:3px solid var(--lvb-gold);border-radius:8px;font-size:14px;color:#5a4a1f;font-family:"Noto Serif SC",serif}.lvb-choices{list-style:none;padding:0;margin:0;display:grid;gap:10px}.lvb-choice{display:flex;width:100%;align-items:center;gap:12px;padding:12px 14px;border:2px solid var(--lvb-border);border-radius:var(--lvb-radius-sm);background:#fff;text-align:left;cursor:pointer;font-size:15px;transition:border-color .12s ease,background .12s ease}.lvb-choice:hover:not(:disabled){border-color:var(--lvb-primary);background:#fff6f5}.lvb-choice--selected{border-color:var(--lvb-primary);background:#fff6f5}.lvb-choice--correct{border-color:var(--lvb-jade);background:var(--lvb-jade-soft);color:#0b4d38}.lvb-choice--wrong{border-color:#c62828;background:#fde7e6;color:#7a1a1a}.lvb-choice--muted{opacity:.6}.lvb-choice:disabled{cursor:default}.lvb-choice-letter{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;background:var(--lvb-border);border-radius:999px;font-weight:700;font-size:13px;color:var(--lvb-text);flex-shrink:0}.lvb-choice--correct .lvb-choice-letter{background:var(--lvb-jade);color:#fff}.lvb-choice--wrong .lvb-choice-letter{background:#c62828;color:#fff}.lvb-choice-text{flex:1}.lvb-choice-icon{font-size:18px;font-weight:700}.lvb-expl{margin-top:4px;padding:12px 14px;border-radius:var(--lvb-radius-sm);font-size:14px;line-height:1.5}.lvb-expl strong{display:block;margin-bottom:4px;font-weight:700}.lvb-expl--ok{background:var(--lvb-jade-soft);border:1px solid var(--lvb-jade);color:#0b4d38}.lvb-expl--ko{background:#fde7e6;border:1px solid #e8baa5;color:#7a1a1a}.lvb-card--result{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center}.lvb-card--won{background:linear-gradient(180deg,var(--lvb-jade-soft) 0%,#ffffff 70%)}.lvb-card--lost{background:linear-gradient(180deg,var(--lvb-coral-soft) 0%,#ffffff 70%)}.lvb-score-ring{position:relative;width:140px;height:140px}.lvb-score-ring svg{width:100%;height:100%;transform:rotate(-90deg)}.lvb-ring-bg{fill:none;stroke:var(--lvb-border);stroke-width:10}.lvb-ring-fg{fill:none;stroke:var(--lvb-primary);stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset .4s ease}.lvb-card--won .lvb-ring-fg{stroke:var(--lvb-jade)}.lvb-score-center{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.lvb-score-center strong{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}.lvb-score-center span{font-size:13px;color:var(--lvb-text-muted)}.lvb-result-title{margin:0;font-size:22px;font-weight:700}.lvb-result-sub{margin:0;color:var(--lvb-text-muted);font-size:14px;line-height:1.5}.lvb-result-stats{display:flex;gap:20px;margin:8px 0;flex-wrap:wrap;justify-content:center}.lvb-stat{display:flex;flex-direction:column;gap:2px;align-items:center}.lvb-stat-label{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--lvb-text-muted)}.lvb-stat-value{font-size:18px;font-weight:700}.lvb-card--mistakes h3{margin:0 0 12px;font-size:16px}.lvb-mistake-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}.lvb-mistake{padding:12px 14px;border:1px solid var(--lvb-border);border-radius:var(--lvb-radius-sm);background:#fffdf9;display:flex;flex-direction:column;gap:6px}.lvb-mistake-prompt{font-weight:700;font-size:14px}.lvb-mistake-compare{display:flex;flex-direction:column;gap:3px;font-size:13px}.lvb-mistake-wrong{color:#9a1818}.lvb-mistake-wrong em{font-style:normal;text-decoration:line-through}.lvb-mistake-right{color:var(--lvb-jade)}.lvb-mistake-expl{margin:4px 0 0;font-size:13px;color:var(--lvb-text-muted);line-height:1.45}.lvb-banner-strip{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:14px 18px;border-radius:var(--lvb-radius);border:1px solid var(--lvb-border);margin:16px 0;flex-wrap:wrap}.lvb-banner-strip--available{background:linear-gradient(90deg,#fff4dd,#ffe5dd);border-color:var(--lvb-gold)}.lvb-banner-strip--passed{background:var(--lvb-jade-soft);border-color:var(--lvb-jade)}.lvb-banner-strip--legacy{background:var(--lvb-amber-soft);border-color:var(--lvb-gold)}.lvb-banner-strip--locked{background:#fff;border-color:var(--lvb-border);opacity:.86}.lvb-banner-strip-main{display:flex;gap:14px;align-items:center;flex:1;min-width:200px}.lvb-banner-strip-emoji{font-size:32px;width:52px;height:52px;display:inline-flex;align-items:center;justify-content:center;background:#fff;border-radius:14px;border:1px solid var(--lvb-border)}.lvb-banner-strip-text{display:flex;flex-direction:column;gap:2px}.lvb-banner-strip-eyebrow{font-size:11px;text-transform:uppercase;letter-spacing:.7px;font-weight:700;color:var(--lvb-primary)}.lvb-banner-strip--passed .lvb-banner-strip-eyebrow{color:#0b4d38}.lvb-banner-strip-sub{font-size:14px;font-weight:600;color:var(--lvb-text)}.lvb-banner-strip-meta{font-size:12px;color:var(--lvb-text-muted);margin-top:2px}.lvb-banner-strip-cta{border:none;background:var(--lvb-primary);color:#fff;border-radius:12px;padding:10px 18px;font-weight:700;cursor:pointer;font-size:14px;transition:background .12s ease}.lvb-banner-strip-cta:hover{background:var(--lvb-primary-dark)}.lvb-banner-strip--passed .lvb-banner-strip-cta{background:var(--lvb-jade)}.lvb-banner-strip--passed .lvb-banner-strip-cta:hover{background:#256a52}.lvb-banner-strip-progress{flex-basis:100%;height:6px;border-radius:6px;background:var(--lvb-border);overflow:hidden}.lvb-banner-strip-progress>div{height:100%;background:linear-gradient(90deg,var(--lvb-primary) 0%,var(--lvb-gold) 100%);transition:width .2s ease}@media (max-width: 560px){.lvb-banner-strip{flex-direction:column;align-items:stretch}.lvb-banner-strip-cta{align-self:stretch}}.settings-srs-preset{display:flex;flex-direction:column;gap:6px;text-align:left;padding:14px 16px;border:1px solid #e5e7eb;border-radius:12px;background:#fff;cursor:pointer;transition:border-color .12s ease-in-out,box-shadow .12s ease-in-out,transform .12s ease-in-out;position:relative}.settings-srs-preset:hover{border-color:#94a3b8;transform:translateY(-1px)}.settings-srs-preset--active{border-color:#16a34a;box-shadow:0 0 0 3px #16a34a26;background:#f0fdf4}.settings-srs-count{font-size:.82rem;font-weight:500;color:#16a34a;margin-left:4px}.settings-srs-indicator{position:absolute;top:10px;right:14px;font-size:18px;color:#16a34a;line-height:1}.settings-srs-custom{display:flex;justify-content:space-between;align-items:center;gap:16px}.settings-srs-custom-controls{display:inline-flex;align-items:center;gap:8px}.settings-srs-input{width:76px;padding:6px 10px;font-size:.95rem;font-weight:600;border:1px solid #d1d5db;border-radius:8px;text-align:center;background:#fff;color:#111827}.settings-srs-input:focus{outline:none;border-color:#16a34a;box-shadow:0 0 0 3px #16a34a26}.settings-srs-unit{font-size:.82rem;color:#6b7280}@media (max-width: 640px){.settings-srs-custom{flex-direction:column;align-items:flex-start}}.culture-page{max-width:1200px;margin:0 auto;padding:var(--spacing-xl, 2rem);animation:fadeIn .3s ease}.culture-hero{text-align:center;padding:var(--spacing-2xl, 3rem) 0;margin-bottom:var(--spacing-xl, 2rem);background:var(--welcome-gradient, linear-gradient(135deg, rgba(216, 72, 62, .92), rgba(240, 183, 98, .7)));border-radius:var(--radius-lg, 18px);color:#fff}.hero-kicker{display:block;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;opacity:.9;margin-bottom:var(--spacing-sm, .5rem)}.culture-hero h1{font-size:2.5rem;font-weight:700;margin:var(--spacing-sm, .5rem) 0;color:#fff}.hero-subtitle{font-size:1.125rem;opacity:.95;max-width:600px;margin:var(--spacing-md, 1rem) auto 0}.category-filter{display:flex;gap:var(--spacing-sm, .5rem);flex-wrap:wrap;justify-content:center;margin-bottom:var(--spacing-xl, 2rem);padding:0 var(--spacing-md, 1rem)}.category-btn{padding:var(--spacing-sm, .5rem) var(--spacing-lg, 1.5rem);border:2px solid var(--border-medium, #e0e0e0);border-radius:var(--radius-full, 999px);background:var(--bg-primary, white);color:var(--text-primary, #1F2233);font-size:.9375rem;font-weight:600;cursor:pointer;transition:all .2s ease;white-space:nowrap}.category-btn:hover{border-color:var(--primary-red, #D8483E);color:var(--primary-red, #D8483E);transform:translateY(-2px)}.category-btn.active{background:var(--primary-red, #D8483E);color:#fff;border-color:var(--primary-red, #D8483E)}.culture-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--spacing-lg, 1.5rem);margin-top:var(--spacing-xl, 2rem)}.culture-topic-card{background:var(--bg-primary, white);border:1px solid var(--border-light, #f0f0f0);border-radius:var(--radius-md, 12px);padding:var(--spacing-lg, 1.5rem);cursor:pointer;transition:all .25s ease;box-shadow:0 2px 8px #0000000a}.culture-topic-card:hover{transform:translateY(-6px);box-shadow:0 8px 24px #0000001f;border-color:var(--primary-red, #D8483E)}.card-icon{font-size:3rem;margin-bottom:var(--spacing-md, 1rem);line-height:1}.card-header{display:flex;gap:var(--spacing-sm, .5rem);margin-bottom:var(--spacing-md, 1rem)}.card-category,.card-difficulty{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:.25rem .5rem;border-radius:var(--radius-sm, 6px)}.card-category{background:var(--primary-red-light, #fdeee1);color:var(--primary-red, #D8483E)}.card-difficulty{background:var(--bg-secondary, #f5f5f5);color:var(--text-secondary, #5E6075)}.card-title{font-size:1.25rem;font-weight:700;margin:var(--spacing-sm, .5rem) 0;color:var(--text-primary, #1F2233);line-height:1.3}.card-intro{font-size:.9375rem;color:var(--text-secondary, #5E6075);line-height:1.6;margin:var(--spacing-md, 1rem) 0}.card-footer{display:flex;justify-content:space-between;align-items:center;margin-top:var(--spacing-lg, 1.5rem);padding-top:var(--spacing-md, 1rem);border-top:1px solid var(--border-light, #f0f0f0)}.card-read-time{font-size:.875rem;color:var(--text-secondary, #5E6075)}.card-cta{font-size:.875rem;font-weight:600;color:var(--primary-red, #D8483E)}.no-topics{text-align:center;padding:var(--spacing-2xl, 3rem);color:var(--text-secondary, #5E6075)}.culture-topic-detail{max-width:800px;margin:0 auto;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.back-btn{background:var(--bg-secondary, #f5f5f5);border:none;border-radius:var(--radius-md, 12px);padding:var(--spacing-sm, .5rem) var(--spacing-lg, 1.5rem);font-size:.9375rem;font-weight:600;color:var(--text-primary, #1F2233);cursor:pointer;transition:all .2s ease;margin-bottom:var(--spacing-xl, 2rem)}.back-btn:hover{background:var(--primary-red, #D8483E);color:#fff;transform:translate(-4px)}.detail-header{margin-bottom:var(--spacing-2xl, 3rem)}.detail-title-row{display:flex;align-items:center;gap:var(--spacing-lg, 1.5rem);margin-bottom:var(--spacing-lg, 1.5rem)}.detail-icon{font-size:3.5rem;line-height:1;flex-shrink:0}.detail-title{font-size:2.25rem;font-weight:700;color:var(--text-primary, #1F2233);line-height:1.2;margin:0}.detail-meta{display:flex;gap:var(--spacing-sm, .5rem);flex-wrap:wrap}.detail-category,.detail-difficulty,.detail-read-time{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:.375rem .75rem;border-radius:var(--radius-full, 999px)}.detail-category{background:var(--primary-red-light, #fdeee1);color:var(--primary-red, #D8483E)}.detail-difficulty{background:var(--bg-secondary, #f5f5f5);color:var(--text-secondary, #5E6075)}.detail-read-time{background:var(--jade-green-light, #e6f7f4);color:var(--jade-green, #2F9D8A)}.detail-introduction{font-size:1.125rem;line-height:1.8;color:var(--text-primary, #1F2233);padding:var(--spacing-lg, 1.5rem);background:var(--bg-secondary, #f5f5f5);border-left:4px solid var(--primary-red, #D8483E);border-radius:var(--radius-sm, 6px);margin-bottom:var(--spacing-2xl, 3rem)}.detail-sections,.detail-section{margin-bottom:var(--spacing-2xl, 3rem)}.detail-section h2{font-size:1.75rem;font-weight:700;color:var(--text-primary, #1F2233);margin-bottom:var(--spacing-lg, 1.5rem)}.detail-section p{font-size:1rem;line-height:1.8;color:var(--text-secondary, #5E6075);margin-bottom:var(--spacing-lg, 1.5rem)}.section-examples{display:grid;gap:var(--spacing-md, 1rem);margin-top:var(--spacing-lg, 1.5rem)}.example-item{background:var(--bg-primary, white);border:2px solid var(--border-light, #f0f0f0);border-radius:var(--radius-md, 12px);padding:var(--spacing-lg, 1.5rem);transition:all .2s ease}.example-item:hover{border-color:var(--primary-red, #D8483E);transform:translate(4px)}.example-hanzi{font-size:1.5rem;font-weight:700;color:var(--text-primary, #1F2233);margin-bottom:var(--spacing-sm, .5rem)}.example-pinyin{font-size:1rem;color:var(--primary-red, #D8483E);font-style:italic;margin-bottom:var(--spacing-sm, .5rem)}.example-translation{font-size:.9375rem;color:var(--text-secondary, #5E6075)}.detail-cultural-notes{margin-bottom:var(--spacing-2xl, 3rem)}.detail-cultural-notes h2{font-size:1.75rem;font-weight:700;color:var(--text-primary, #1F2233);margin-bottom:var(--spacing-lg, 1.5rem)}.cultural-notes-grid{display:grid;gap:var(--spacing-lg, 1.5rem)}.cultural-note-box{border-radius:var(--radius-md, 12px);padding:var(--spacing-lg, 1.5rem);border-left:4px solid}.cultural-note-box.note-tip{background:#fff8e1;border-color:#fbc02d}.cultural-note-box.note-warning{background:#fff3e0;border-color:#f57c00}.cultural-note-box.note-history{background:#e3f2fd;border-color:#1976d2}.cultural-note-box.note-fun-fact{background:#f3e5f5;border-color:#7b1fa2}.note-header{display:flex;align-items:center;gap:var(--spacing-sm, .5rem);margin-bottom:var(--spacing-md, 1rem)}.note-icon{font-size:1.5rem;line-height:1}.note-label{font-size:.875rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.note-content{font-size:.9375rem;line-height:1.7;color:var(--text-primary, #1F2233)}.detail-vocabulary{margin-bottom:var(--spacing-2xl, 3rem)}.detail-vocabulary h2{font-size:1.75rem;font-weight:700;color:var(--text-primary, #1F2233);margin-bottom:var(--spacing-lg, 1.5rem)}.vocabulary-grid{display:flex;flex-wrap:wrap;gap:var(--spacing-sm, .5rem);margin-bottom:var(--spacing-md, 1rem)}.vocabulary-item{background:var(--bg-primary, white);border:2px solid 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