:root{--bg: #faf9f6;--bg-card: #ffffff;--bg-elevated: #ffffff;--text: #1c1c1e;--text-secondary: #8e8e93;--text-tertiary: #aeaeb2;--accent: #f59e0b;--accent-hover: #d97706;--accent-soft: rgba(245, 158, 11, .1);--green: #10b981;--green-soft: rgba(16, 185, 129, .12);--orange: #ff9500;--orange-soft: rgba(255, 149, 0, .12);--red: #ff3b30;--red-soft: rgba(255, 59, 48, .12);--blue: #007aff;--purple: #af52de;--purple-soft: rgba(175, 82, 222, .12);--border: rgba(60, 60, 67, .12);--border-strong: rgba(60, 60, 67, .2);--separator: rgba(60, 60, 67, .08);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow: 0 2px 8px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08), 0 2px 6px rgba(0, 0, 0, .04);--shadow-modal: 0 20px 60px rgba(0, 0, 0, .15);--radius-sm: 12px;--radius: 16px;--radius-lg: 20px;--max-width: 560px;--nav-height: 72px;--sidebar-width: 220px;--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;--speaker-a: #f59e0b;--speaker-a-bg: #fef3c7;--speaker-a-text: #92400e;--speaker-b: #6366f1;--speaker-b-bg: #eef2ff;--speaker-b-text: #4338ca;--flashcard-gradient: linear-gradient(145deg, #fffbeb, #fef3c7)}[data-theme=dark]{--bg: #1a1917;--bg-card: #2a2826;--bg-elevated: #2c2c2e;--text: #fafaf9;--text-secondary: #8e8e93;--text-tertiary: #636366;--border: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .16);--separator: rgba(255, 255, 255, .06);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 2px 8px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-modal: 0 20px 60px rgba(0, 0, 0, .7);--accent-soft: rgba(245, 158, 11, .15);--green-soft: rgba(16, 185, 129, .15);--orange-soft: rgba(255, 159, 10, .15);--red-soft: rgba(255, 69, 58, .15);--purple-soft: rgba(191, 90, 242, .15);--speaker-a: #fbbf24;--speaker-a-bg: #2a1f00;--speaker-a-text: #fbbf24;--speaker-b: #818cf8;--speaker-b-bg: #1e1b3a;--speaker-b-text: #a5b4fc;--flashcard-gradient: linear-gradient(145deg, #2a2419, #1f1b14)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased}::-webkit-scrollbar{width:0}.hidden{display:none!important}.fade-in{animation:fadeIn .25s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}.header{display:flex;align-items:center;justify-content:space-between;padding:20px 0 24px}.header h1{font-size:34px;font-weight:700;letter-spacing:-.5px;line-height:1.2}.header-actions{display:flex;gap:8px}.icon-btn{width:40px;height:40px;border-radius:50%;border:none;background:var(--bg-card);color:var(--text);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .1s,background .15s}.icon-btn:active{transform:scale(.9);background:var(--separator)}.action-buttons{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:16px 24px;border:none;border-radius:var(--radius);font-size:17px;font-weight:600;cursor:pointer;transition:transform .1s,opacity .15s;font-family:var(--font)}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.35;pointer-events:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:var(--bg-card);color:var(--text)}.btn-count{background:#fff3;padding:2px 10px;border-radius:12px;font-size:14px;font-weight:500}.btn-secondary .btn-count{background:var(--accent-soft);color:var(--accent)}.btn-danger{background:var(--red);color:#fff}.toggle-btn{width:50px;height:30px;border-radius:15px;border:none;background:var(--separator);cursor:pointer;position:relative;transition:background .25s;padding:0}.toggle-btn.active{background:var(--green)}.toggle-knob{display:block;width:24px;height:24px;border-radius:50%;background:#fff;position:absolute;top:3px;left:3px;transition:transform .25s;box-shadow:0 1px 3px #00000026}.toggle-btn.active .toggle-knob{transform:translate(20px)}#app{max-width:var(--max-width);margin:0 auto;padding:0 20px;padding-bottom:calc(var(--nav-height) + 16px)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--bg-card);backdrop-filter:blur(20px) saturate(1.8);-webkit-backdrop-filter:blur(20px) saturate(1.8);border-top:.5px solid var(--border);display:flex;justify-content:center;padding:8px 0;padding-bottom:max(8px,env(safe-area-inset-bottom));z-index:100}[data-theme=dark] .bottom-nav{background:#1c1c1ed9}.bottom-nav-inner{display:flex;max-width:var(--max-width);width:100%;justify-content:space-around}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 20px;border:none;background:none;color:var(--text-tertiary);font-size:10px;cursor:pointer;font-family:var(--font);font-weight:500;transition:color .15s,transform .1s}.nav-item:active{transform:scale(.9)}.nav-item .nav-icon{font-size:22px;line-height:1;display:flex;align-items:center;justify-content:center;height:28px}.nav-item .nav-icon svg{width:24px;height:24px}.nav-item.active{color:var(--accent)}.tooltip-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;background:#0000004d;display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .15s ease}.tooltip-sheet{width:100%;max-width:500px;max-height:70vh;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 0 env(safe-area-inset-bottom,0);animation:tooltipSlideUp .25s ease}.tooltip-sheet .reading-tooltip{margin-top:0;border-radius:var(--radius-lg) var(--radius-lg) 0 0;box-shadow:0 -4px 20px #00000026}@keyframes tooltipSlideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.side-nav{display:none}@media(min-width:768px){.bottom-nav{display:none!important}.side-nav{display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-width);background:var(--bg-card);border-right:1px solid var(--border);padding:24px 0;z-index:100}.side-nav-brand{padding:0 24px 24px;font-size:18px;font-weight:700;color:var(--text);border-bottom:1px solid var(--border);margin-bottom:8px}.side-nav a{display:flex;align-items:center;gap:12px;padding:12px 24px;color:var(--text-secondary);text-decoration:none;font-size:15px;font-weight:500;transition:background .15s,color .15s}.side-nav a:hover{background:var(--bg-elevated)}.side-nav a.router-link-active{color:var(--accent);background:var(--bg-elevated)}.side-nav a .nav-icon{font-size:20px;width:24px;text-align:center}.side-nav-auth{margin-top:auto;padding:16px 24px;border-top:1px solid var(--border)}.app-main{max-width:calc(1100px + var(--sidebar-width));margin:0 auto;padding:40px 48px 40px calc(var(--sidebar-width) + 48px)}#app{max-width:none}.stats-grid{grid-template-columns:repeat(4,1fr)}.passage-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}.card-screen{max-width:650px;margin:0 auto}.passage-screen{max-width:750px;margin:0 auto}.passage-player{bottom:0;left:calc(var(--sidebar-width, 220px) + 48px);right:48px;max-width:750px;margin:0 auto;border-radius:16px 16px 0 0}.tooltip-overlay{align-items:center}.tooltip-sheet .reading-tooltip{border-radius:var(--radius-lg)}.settings-view-inner{max-width:600px;margin:0 auto}.word-item{flex-direction:row;align-items:center;gap:16px}.wordlist-filters-row{display:flex;gap:12px;align-items:center}.wordlist-filters-row .search-box{flex:1}.wordlist-filters-row .topic-select{width:auto;min-width:160px}.modal-overlay .modal{max-width:540px;margin:auto;border-radius:16px}.filter-tabs{justify-content:flex-start;flex-wrap:wrap;overflow-x:visible}.rating-buttons{max-width:500px;margin:0 auto}.btn-primary.start-btn,.start-study-btn{max-width:300px}}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}.stats-grid[data-columns="2"]{grid-template-columns:repeat(2,1fr)}.stat-card{background:var(--bg-card);border-radius:var(--radius);padding:20px 16px;text-align:center}.stat-value{font-size:32px;font-weight:800;line-height:1.1;letter-spacing:-.5px}.stat-label{font-size:12px;color:var(--text-secondary);margin-top:6px;font-weight:500}.stat-value.blue{color:var(--blue)}.stat-value.orange{color:var(--orange)}.stat-value.green{color:var(--green)}.stat-value.red{color:var(--red)}.progress-section{background:var(--bg-card);border-radius:var(--radius);padding:20px;margin-bottom:24px}.progress-header{display:flex;justify-content:space-between;margin-bottom:12px;font-size:14px;font-weight:500}.progress-bar{height:8px;background:var(--separator);border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:4px;transition:width .5s ease}.progress-bar-multi{height:8px;background:var(--separator);border-radius:4px;overflow:hidden;display:flex}.progress-segment{height:100%;transition:width .5s ease;min-width:0}.progress-segment.mastered{background:var(--purple)}.progress-segment.young{background:var(--green)}.progress-segment.learning{background:var(--orange)}.progress-legend{display:flex;flex-wrap:wrap;gap:16px;margin-top:12px;font-size:12px;color:var(--text-secondary)}.legend-item{display:flex;align-items:center;gap:6px}.legend-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.legend-dot.mastered{background:var(--purple)}.legend-dot.young{background:var(--green)}.legend-dot.learning{background:var(--orange)}.legend-dot.unseen{background:var(--separator)}.card-screen{display:flex;flex-direction:column;min-height:calc(100vh - 120px)}.card-header{display:flex;align-items:center;justify-content:space-between;padding:12px 0 20px}.back-btn{background:none;border:none;font-size:16px;color:var(--accent);cursor:pointer;font-family:var(--font);font-weight:500;padding:4px 0}.card-progress{font-size:14px;color:var(--text-secondary);font-weight:500}.card-progress-bar{height:2px;background:var(--separator);border-radius:1px;margin-bottom:24px;overflow:hidden}.card-progress-fill{height:100%;background:var(--accent);transition:width .3s ease}.flashcard{background:var(--flashcard-gradient);border-radius:var(--radius-lg);box-shadow:0 8px 32px #f59e0b26;padding:36px 28px;flex:1;display:flex;flex-direction:column;cursor:pointer;-webkit-user-select:none;user-select:none;min-height:300px;transition:box-shadow .2s;position:relative;overflow:hidden}.flashcard:active{box-shadow:var(--shadow)}.card-front{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;text-align:center}.card-word{font-size:38px;font-weight:800;letter-spacing:-.5px;margin-bottom:10px}.card-phonetic{font-size:17px;color:#92400e;margin-bottom:4px}[data-theme=dark] .card-phonetic{color:var(--text-secondary)}.card-pos{font-size:14px;color:#92400e;font-style:italic;margin-bottom:20px;opacity:.7}[data-theme=dark] .card-pos{color:var(--text-tertiary);opacity:1}.audio-controls{display:flex;gap:10px;align-items:center}.audio-btn{width:48px;height:48px;border-radius:50%;border:1.5px solid var(--border-strong);background:transparent;color:var(--text);font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.audio-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.audio-btn:active{transform:scale(.9)}.audio-btn-slow{width:36px;height:36px;font-size:12px;opacity:.6}.audio-btn-slow:hover{opacity:1}.tap-hint{color:var(--text-tertiary);font-size:13px;margin-top:auto;padding-top:20px}.card-back{margin-top:24px;padding-top:24px;border-top:1px solid var(--separator)}.card-zh{font-size:24px;font-weight:600;margin-bottom:12px}.card-en{font-size:16px;line-height:1.6;color:var(--text-secondary);margin-bottom:20px}.card-examples{list-style:none;padding:0}.card-examples li{font-size:15px;line-height:1.7;color:var(--text-secondary);padding:8px 0 8px 16px;position:relative;display:flex;align-items:flex-start;gap:8px;border-left:2px solid var(--separator);margin-bottom:4px}.example-text{flex:1}.example-play-btn{width:28px;height:28px;min-width:28px;border-radius:50%;border:1.5px solid var(--border-strong);background:transparent;color:var(--text-secondary);font-size:11px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.example-play-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.example-play-btn:active{transform:scale(.85)}.card-extra{margin-top:20px;padding-top:20px;border-top:1px solid var(--separator)}.card-extra-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}.card-extra-def{font-size:14px;line-height:1.6;margin-bottom:6px}.card-extra-example{font-size:13px;color:var(--text-tertiary);font-style:italic;margin-bottom:10px}.rating-buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}.rate-btn{padding:16px 4px;border:none;border-radius:14px;font-size:15px;font-weight:600;cursor:pointer;transition:transform .1s;font-family:var(--font);display:flex;flex-direction:column;align-items:center;gap:4px;box-shadow:0 2px 8px #00000014}.rate-btn:active{transform:scale(.93)}.rate-btn .rate-interval{font-size:11px;font-weight:400;opacity:.75}.rate-btn.again{background:#fff;color:var(--red)}.rate-btn.hard{background:#fff;color:var(--orange)}.rate-btn.good{background:var(--green);color:#fff}.rate-btn.easy{background:#fff;color:var(--blue)}[data-theme=dark] .rate-btn.again,[data-theme=dark] .rate-btn.hard,[data-theme=dark] .rate-btn.easy{background:var(--bg-elevated)}.wordlist-header{display:flex;align-items:center;padding:20px 0 16px}.wordlist-header h2{font-size:34px;font-weight:700;letter-spacing:-.5px;flex:1}.search-box{width:100%;padding:12px 16px;border:none;border-radius:var(--radius);font-size:16px;background:var(--bg-card);color:var(--text);font-family:var(--font);margin-bottom:12px}.search-box:focus{outline:none;box-shadow:0 0 0 2px var(--accent)}.topic-select{width:100%;padding:12px 40px 12px 16px;border:none;border-radius:var(--radius);font-size:15px;background:var(--bg-card);color:var(--text);font-family:var(--font);margin-bottom:12px;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238e8e93' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}.topic-select:focus{outline:none;box-shadow:0 0 0 2px var(--accent)}.filter-tabs{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:2px}.filter-tab{padding:8px 16px;border-radius:20px;border:none;background:var(--bg-card);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;font-family:var(--font);transition:all .15s}.filter-tab.active{background:var(--accent);color:#fff}.filter-section{display:flex;flex-direction:column;gap:0;margin-bottom:20px}.filter-section .filter-tabs{margin-bottom:8px}.filter-section .filter-tabs:last-child{margin-bottom:0}.word-list{display:flex;flex-direction:column;gap:6px}.word-item{display:flex;align-items:center;padding:14px 16px;background:var(--bg-card);border-radius:var(--radius);cursor:pointer;transition:transform .1s}.word-item:active{transform:scale(.98)}.word-item-text{flex:1}.word-item-word{font-size:16px;font-weight:600}.word-item-zh{font-size:13px;color:var(--text-secondary);margin-top:2px}.word-item-badge{padding:4px 10px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase}.badge-unseen{background:var(--separator);color:var(--text-tertiary)}.badge-learning{background:var(--orange-soft);color:var(--orange)}.badge-relearning{background:var(--red-soft);color:var(--red)}.badge-review{background:var(--green-soft);color:var(--green)}.badge-mastered{background:var(--purple-soft);color:var(--purple)}.badge-known{background:var(--color-warning, #f59e0b);color:#fff}[data-theme=dark] .badge-unseen{background:#ffffff0f}.word-list-empty{text-align:center;padding:48px 20px;color:var(--text-secondary)}.load-more-btn{display:block;width:100%;padding:14px;margin-top:8px;border:none;border-radius:var(--radius);background:var(--bg-card);color:var(--text-secondary);font-size:14px;cursor:pointer;font-family:var(--font);transition:background .15s}.load-more-btn:hover{background:var(--separator)}.session-complete{text-align:center;padding:48px 20px}.session-complete-icon{font-size:64px;margin-bottom:20px}.session-complete h2{font-size:28px;font-weight:700;letter-spacing:-.3px;margin-bottom:8px}.session-complete p{color:var(--text-secondary);font-size:16px;margin-bottom:32px}.settings-section{background:var(--bg-card);border-radius:var(--radius);margin-bottom:20px;overflow:hidden}.settings-item{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:.5px solid var(--separator)}.settings-item:last-child{border-bottom:none}.settings-label{font-size:16px}.settings-value{display:flex;align-items:center;gap:8px}.settings-section-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.8px;padding:14px 20px 6px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:200;display:flex;align-items:flex-end;justify-content:center}[data-theme=dark] .modal-overlay{background:#0009}.modal{background:var(--bg-card);border-radius:24px 24px 0 0;max-width:var(--max-width);width:100%;max-height:85vh;overflow-y:auto;padding:28px;animation:slideUp .3s cubic-bezier(.32,.72,0,1)}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-handle{width:28px;height:3px;background:var(--text-tertiary);border-radius:2px;margin:0 auto 24px;opacity:.4}.heatmap-section{background:var(--bg-card);border-radius:var(--radius);padding:20px;margin-bottom:24px}.heatmap-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:16px}.heatmap-grid{display:flex;flex-direction:column;gap:6px}.heatmap-day{display:flex;align-items:center;gap:10px}.heatmap-day.today .heatmap-label{font-weight:700;color:var(--accent)}.heatmap-label{width:32px;font-size:12px;color:var(--text-secondary);flex-shrink:0;font-weight:500}.heatmap-bar-track{flex:1;height:12px;background:var(--separator);border-radius:6px;overflow:hidden}.heatmap-bar{height:100%;border-radius:6px;transition:width .4s ease}.heatmap-bar.level-0{background:transparent}.heatmap-bar.level-1{background:#fef3c7}.heatmap-bar.level-2{background:#fde68a}.heatmap-bar.level-3{background:#f59e0b}.heatmap-bar.level-4{background:#10b981}.heatmap-count{width:28px;font-size:12px;color:var(--text-tertiary);text-align:right;flex-shrink:0}.reading-empty{text-align:center;padding:64px 24px}.reading-empty-icon{font-size:56px;margin-bottom:20px}.reading-empty h3{font-size:22px;font-weight:700;margin-bottom:8px}.reading-empty p{color:var(--text-secondary);font-size:15px;line-height:1.6}.reading-section-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.8px;margin-bottom:12px}.passage-list{display:flex;flex-direction:column;gap:14px}.passage-item{display:flex;align-items:center;padding:18px 20px;background:var(--bg-card);border-radius:var(--radius);cursor:pointer;transition:transform .1s;gap:12px}.passage-item:active{transform:scale(.98)}.passage-item.completed{opacity:.5}.passage-item-info{flex:1;min-width:0}.passage-item-title{font-size:16px;font-weight:600;margin-bottom:6px;line-height:1.3}.passage-speakers{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:4px}.passage-item-meta{display:flex;gap:8px;font-size:13px;color:var(--text-secondary);flex-wrap:wrap}.passage-topic{text-transform:capitalize}.level-badge{display:inline-block;font-size:11px;font-weight:600;padding:1px 6px;border-radius:4px;vertical-align:middle;color:#fff}.level-a1{background:#4caf50}.level-a2{background:#8bc34a}.level-b1{background:#2196f3}.level-b2{background:#1565c0}.level-c1{background:#9c27b0}.level-c2{background:#6a1b9a}.level-user{background:var(--text-tertiary)}.passage-words{color:var(--text-tertiary)}.passage-done-badge{font-size:13px;font-weight:600;color:var(--green);flex-shrink:0}.passage-screen{display:flex;flex-direction:column;min-height:calc(100vh - 32px)}.passage-content{flex:1;background:var(--bg-card);border-radius:var(--radius-lg);padding:28px 24px 140px;margin-bottom:16px;position:relative}.passage-title{font-size:22px;font-weight:700;margin-bottom:20px;line-height:1.3;letter-spacing:-.2px}.passage-text{font-size:17px;line-height:1.85;color:var(--text)}.sentence{border-radius:4px;transition:background .3s ease;scroll-margin-top:120px}.sentence-active{background:var(--accent-soft)}.highlight-word{color:var(--accent);font-weight:500;cursor:pointer;text-decoration:underline;text-decoration-color:var(--accent-soft);text-underline-offset:3px;border-radius:2px;transition:background .15s}.highlight-word:hover{background:var(--accent-soft)}.highlight-word-target{color:var(--accent);font-weight:500;cursor:pointer;text-decoration:underline;text-decoration-color:var(--accent-soft);text-underline-offset:3px}.highlight-word-vocab{cursor:pointer;border-bottom:1px dotted var(--text-tertiary)}.reading-tooltip{background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:20px;margin-top:16px;position:relative;animation:fadeIn .2s ease}.reading-tooltip-close{position:absolute;top:12px;right:12px;font-size:16px;color:var(--text-tertiary);cursor:pointer;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .15s}.reading-tooltip-close:hover{background:var(--separator)}.reading-tooltip-word{font-size:22px;font-weight:700;margin-bottom:4px}.reading-tooltip-pos{font-size:14px;font-weight:400;font-style:italic;color:var(--text-secondary)}.reading-tooltip-phonetic{font-size:14px;color:var(--text-secondary);margin-bottom:12px;display:flex;align-items:center;gap:8px}.reading-tooltip-zh{font-size:18px;font-weight:600;margin-bottom:6px}.reading-tooltip-en{font-size:15px;line-height:1.5;color:var(--text-secondary)}.reading-tooltip-state{font-size:11px;font-weight:600;padding:3px 10px;border-radius:10px;margin-left:8px;text-transform:uppercase;vertical-align:middle;letter-spacing:.3px}.reading-tooltip-state.state-unseen{background:var(--separator);color:var(--text-tertiary)}.reading-tooltip-state.state-learning{background:var(--orange-soft);color:var(--orange)}.reading-tooltip-state.state-relearning{background:var(--red-soft);color:var(--red)}.reading-tooltip-state.state-review{background:var(--green-soft);color:var(--green)}.reading-tooltip-state.state-mastered{background:var(--purple-soft);color:var(--purple)}.reading-tooltip-state.state-known{color:var(--color-warning, #f59e0b)}.reading-tooltip-add{width:100%;margin-top:16px;padding:12px 16px;font-size:15px}.passage-player{background:var(--bg-card);padding:8px 20px;padding-bottom:max(8px,env(safe-area-inset-bottom));position:fixed;bottom:0;left:0;right:0;z-index:101;box-shadow:0 -2px 12px #00000014;border-top:.5px solid var(--border)}.player-progress-row{display:flex;align-items:center;gap:8px;margin-bottom:6px}.player-controls{display:flex;align-items:center;justify-content:center;gap:16px}.player-btn{width:36px;height:36px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform .1s,opacity .15s;flex-shrink:0;font-family:var(--font)}.player-btn:active{transform:scale(.9)}.player-btn-play{background:var(--accent);color:#fff;width:40px;height:40px;font-size:16px}.player-btn-stop{background:var(--separator);color:var(--text-secondary);font-size:12px}.player-btn-stop:hover{background:var(--border)}.player-progress-wrapper{flex:1;cursor:pointer;padding:8px 0}.player-progress-wrapper.disabled{cursor:default;opacity:.5}.player-progress-track{height:4px;background:var(--separator);border-radius:2px;overflow:hidden}.player-progress-fill{height:100%;background:var(--accent);border-radius:2px;transition:width .1s linear}.player-time{font-size:12px;color:var(--text-secondary);font-variant-numeric:tabular-nums;white-space:nowrap;min-width:72px;text-align:center;flex-shrink:0}.speed-pill{padding:4px 10px;border-radius:10px;border:1px solid var(--border);background:var(--separator);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;font-family:var(--font);transition:all .15s}.speed-picker{position:relative}.speed-pill:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}.speed-menu{position:absolute;bottom:calc(100% + 8px);right:0;background:var(--bg-card);border-radius:12px;box-shadow:0 4px 20px #0000001f;border:1px solid var(--border);padding:4px;display:flex;flex-direction:column;min-width:64px;z-index:60}.speed-menu-item{padding:8px 14px;border:none;background:transparent;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;font-family:var(--font);text-align:center;transition:all .1s}.speed-menu-item:hover{background:var(--separator)}.speed-menu-item.active{color:var(--accent);font-weight:700;background:var(--accent-soft)}.player-fallback-notice{font-size:12px;color:var(--text-tertiary);text-align:center;margin-top:10px}.dialogue-turn{padding:.5rem .75rem;margin-bottom:.25rem;border-radius:.5rem;transition:background-color .2s}.dialogue-turn.turn-active{background-color:var(--accent-soft)}.speaker-name{font-weight:600;margin-right:.5rem;font-size:.875rem}.speaker-0{color:var(--speaker-a-text)}.speaker-1{color:var(--speaker-b-text)}.turn-text{line-height:1.6}.passage-actions{display:flex;gap:12px;padding-bottom:16px}.passage-action-btn{flex:1;padding:14px 16px;font-size:15px}.passage-already-read{flex:1;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;color:var(--green)}.word-known-btn{background:none;border:none;cursor:pointer;font-size:18px;padding:4px 8px;color:var(--text-secondary);transition:color .15s}.word-known-btn.is-known{color:var(--color-warning, #f59e0b)}.card-know-wrapper{margin-top:16px}.card-know-btn{background:none;border:1px solid var(--border);border-radius:8px;padding:6px 16px;font-size:13px;color:var(--text-secondary);cursor:pointer;transition:all .15s;font-family:var(--font)}.card-know-btn:hover{border-color:var(--color-warning, #f59e0b);color:var(--color-warning, #f59e0b)}.plain-word{cursor:pointer;border-radius:2px;transition:background .12s}.plain-word:hover,.plain-word:active{background:var(--separator)}.free-tooltip-loading{display:flex;align-items:center;gap:10px;font-size:15px;color:var(--text-secondary);padding:4px 0}.free-tooltip-spinner{display:inline-block;width:16px;height:16px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}.free-tooltip-notfound{padding:4px 0}.free-tooltip-notfound-msg{font-size:14px;color:var(--text-secondary);margin:8px 0 12px}.free-tooltip-def{margin-bottom:8px;line-height:1.55}.free-tooltip-example{font-size:13px;color:var(--text-secondary);font-style:italic;margin-top:4px}.free-tooltip-search{display:inline-block;margin-top:14px;font-size:14px;font-weight:500;color:var(--accent);text-decoration:none}.free-tooltip-search:hover{text-decoration:underline}.greeting-card{position:relative;background:linear-gradient(135deg,#fffbeb,#fef3c7);border-radius:var(--radius);padding:24px;margin-bottom:24px;overflow:hidden}[data-theme=dark] .greeting-card{background:linear-gradient(135deg,#2a2419,#1f1b14)}.greeting-circle{position:absolute;top:-24px;right:-24px;width:96px;height:96px;border-radius:50%;background:#fbbf2426;pointer-events:none}.greeting-text{font-size:16px;font-weight:600;color:var(--text);margin-bottom:4px}.greeting-streak{font-size:22px;font-weight:700;color:var(--text)}.greeting-streak-num{color:var(--accent);font-size:28px;font-weight:800}.progress-pct{color:var(--accent);font-weight:700;margin-left:6px}.settings-card{background:var(--bg-card);border-radius:14px;box-shadow:0 1px 4px #0000000a;margin-bottom:16px;overflow:hidden}.settings-card-title{color:var(--speaker-a-text);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;padding:14px 20px 6px}.theme-pills{display:flex;gap:6px}.theme-pill{padding:6px 18px;border-radius:20px;border:1.5px solid var(--border);background:var(--bg-card);color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.theme-pill.active{background:var(--speaker-a-bg);border-color:var(--accent);color:var(--speaker-a-text)}.locale-item{cursor:pointer}.circle-check{width:26px;height:26px;border-radius:50%;border:2px solid var(--border-strong);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:all .2s;flex-shrink:0}.circle-check.checked{background:var(--green);border-color:var(--green)}.settings-stat-value{color:var(--accent);font-weight:700;font-size:16px}.cl-rootBox,.cl-modalContent,.cl-card{--accent: #007aff;--accent-hover: #0066d6;--accent-soft: rgba(0, 122, 255, .1)}