*{box-sizing:border-box}:root{--safe-area-top-fallback: 0px;--safe-area-top: var(--safe-area-inset-top, env(safe-area-inset-top, 0px));--safe-area-bottom: var(--safe-area-inset-bottom, env(safe-area-inset-bottom, 0px));--safe-area-top-effective: max(var(--safe-area-top), var(--safe-area-top-fallback));--color-bg-primary: #f4f7fc;--color-bg-secondary: #edf2fa;--color-text-primary: #1d2f48;--color-text-secondary: #5f718d;--color-text-muted: #7a8ca2;--color-accent: #117f87;--color-accent-light: #e2f8f8;--color-danger: #ef5761;--color-success: #1d8960;--color-card-bg: rgba(255,255,255,.88);--color-card-solid: #ffffff;--color-border: #dae4f3;--color-border-light: #e2e9f6;--color-hero-start: rgba(255, 118, 64, .35);--color-hero-end: rgba(16, 133, 118, .28);--color-nav-bg: rgba(247, 251, 255, .95);--color-modal-overlay: rgba(9, 20, 35, .45);--color-modal-bg: #ffffff;--color-input-bg: #fff;--color-input-border: #cfdbea;--color-level-cet4: #22c55e;--color-level-cet6: #3b82f6;--color-level-ielts: #f59e0b;--color-level-toefl: #ef4444;color:var(--color-text-primary);font-family:Avenir Next,Trebuchet MS,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=dark]{--color-bg-primary: #0f1923;--color-bg-secondary: #162231;--color-text-primary: #e2e8f0;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-accent: #2dd4bf;--color-accent-light: #1a3a3a;--color-danger: #f87171;--color-success: #34d399;--color-card-bg: rgba(22, 34, 49, .88);--color-card-solid: #1e293b;--color-border: #334155;--color-border-light: #2d3d50;--color-hero-start: rgba(255, 118, 64, .2);--color-hero-end: rgba(16, 133, 118, .15);--color-nav-bg: rgba(15, 25, 35, .95);--color-modal-overlay: rgba(0, 0, 0, .6);--color-modal-bg: #1e293b;--color-input-bg: #1e293b;--color-input-border: #334155}body{margin:0;min-width:320px;background:var(--color-bg-primary);overscroll-behavior-y:none}[data-theme=dark] body{background:var(--color-bg-primary)}html,body,#root{height:100%;overflow:hidden}button{font:inherit;cursor:pointer}button:hover{transform:translateY(-1px)}button:active{transform:translateY(0)}#root{height:100%;display:grid;place-items:center;overflow:hidden;padding:0;font-family:Plus Jakarta Sans,Avenir Next,Segoe UI,PingFang SC,Hiragino Sans GB,sans-serif}:root{--safe-area-top: env(safe-area-inset-top, 0px);--safe-area-bottom: env(safe-area-inset-bottom, 0px);--safe-area-top-fallback: 0px;--safe-area-top-effective: var(--safe-area-top);--ui-bg-1: #f7fbff;--ui-bg-2: #edf4fb;--ui-surface: rgba(255, 255, 255, .88);--ui-surface-strong: #ffffff;--ui-border: rgba(18, 45, 76, .12);--ui-text: #0b1f33;--ui-text-soft: #455f7a;--ui-text-muted: #6c8198;--ui-primary: #0a8091;--ui-primary-soft: #dff4f7;--ui-secondary: #f08a24;--ui-danger: #d84b57;--ui-success: #1f9a67;--ui-shadow: 0 20px 44px rgba(18, 44, 78, .14);--ui-shadow-soft: 0 10px 20px rgba(18, 44, 78, .1);--ui-radius-lg: 22px;--ui-radius-md: 15px;--ui-radius-sm: 10px}[data-theme=dark]{--ui-bg-1: #0d1622;--ui-bg-2: #0f1b2c;--ui-surface: rgba(18, 29, 44, .88);--ui-surface-strong: #132235;--ui-border: rgba(152, 179, 211, .22);--ui-text: #e8f0fa;--ui-text-soft: #b8c6d9;--ui-text-muted: #8da2bf;--ui-primary: #41c6c0;--ui-primary-soft: rgba(65, 198, 192, .2);--ui-secondary: #ffae4b;--ui-danger: #f37480;--ui-success: #4cd48f;--ui-shadow: 0 16px 36px rgba(2, 8, 16, .5);--ui-shadow-soft: 0 8px 16px rgba(2, 8, 16, .38)}.mobile-app-shell{width:min(460px,100vw);height:var(--app-height, 100dvh);max-height:var(--app-height, 100dvh);display:grid;grid-template-rows:auto 1fr auto;background:radial-gradient(circle at 0% -20%,rgba(244,138,39,.35),transparent 38%),radial-gradient(circle at 100% -10%,rgba(15,125,133,.26),transparent 44%),linear-gradient(180deg,var(--ui-bg-1) 0%,var(--ui-bg-2) 100%);color:var(--ui-text);padding-top:var(--safe-area-top-effective);overflow:hidden}.auth-shell{grid-template-rows:1fr}.auth-content{display:grid;align-items:center;padding:18px 14px}.auth-panel{gap:10px;padding:16px 14px}.auth-hero{display:grid;gap:4px;text-align:left}.auth-kicker{margin:0;font-size:.72rem;letter-spacing:.12em;font-weight:800;color:var(--ui-text-muted)}.auth-hero h1{margin:0;font-size:1.25rem;line-height:1.2;letter-spacing:.01em;color:var(--ui-text)}.auth-subtitle{margin:0;font-size:.84rem;line-height:1.45;color:var(--ui-text-soft)}.auth-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.auth-switch button{border-radius:999px;border:1px solid var(--ui-border);min-height:38px;padding:0 12px;background:var(--ui-surface-strong);color:var(--ui-text-soft);font-size:.8rem;font-weight:750}.auth-switch button.active{background:linear-gradient(135deg,#0f7d85,#1f9a67 55%,#f48a27);border-color:transparent;color:#fff}.auth-error{margin:0;padding:8px 10px;border-radius:12px;border:1px solid color-mix(in srgb,var(--ui-danger) 45%,white);background:color-mix(in srgb,var(--ui-danger) 12%,white);color:color-mix(in srgb,var(--ui-danger) 85%,black);font-size:.82rem}.auth-submit{min-height:44px;border-radius:999px;font-size:.86rem}.auth-hint{margin:0;font-size:.75rem;color:var(--ui-text-muted)}.mobile-topbar{margin:8px 10px 6px;min-height:42px;border-radius:999px;padding:6px 14px;display:flex;align-items:center;justify-content:space-between;color:#fff9f1;background:linear-gradient(130deg,#0f7d85,#1f9a67 48%,#f48a27);box-shadow:var(--ui-shadow-soft);font-weight:650;letter-spacing:.02em}.topbar-date{font-size:.86rem}.mobile-content{min-height:0;padding:0 8px 8px}.mobile-content.reader-host{padding:0;overflow:hidden}.mobile-content.scroll-page,.mobile-content.fixed-page{overflow-y:auto}.safe-bottom-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;height:calc(68px + var(--safe-area-bottom));padding:7px 10px calc(7px + var(--safe-area-bottom));border-top:1px solid var(--ui-border);background:color-mix(in srgb,var(--ui-surface-strong) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);align-items:center}.safe-bottom-nav a{text-decoration:none;height:50px;min-height:0;border-radius:14px;border:1px solid transparent;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:3px;color:var(--ui-text-muted);background:transparent;box-shadow:none;font-size:.7rem;font-weight:750;transition:all .18s ease}.safe-bottom-nav a.active{color:#fff;border-color:transparent;background:linear-gradient(135deg,#0f7d85,#1f9a67 60%,#f48a27);box-shadow:var(--ui-shadow-soft)}.nav-icon{width:18px;height:18px}.panel{height:100%;border-radius:var(--ui-radius-lg);border:1px solid var(--ui-border);background:var(--ui-surface);box-shadow:var(--ui-shadow);padding:14px;display:flex;flex-direction:column;min-height:0}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}.panel-heading h2{margin:0;font-size:1.12rem;letter-spacing:.01em;color:var(--ui-text)}.panel-heading p{margin:0;color:var(--ui-text-muted);font-size:.76rem}.heading-actions{display:flex;gap:6px}.refresh-btn,.ghost-btn,.login-btn,.profile-cta-btn,.primary-link-btn,.theme-toggle-btn,.article-actions button,.article-actions a,.word-actions button,.checkin-card button,.word-complete button,.status-reset-btn{border-radius:12px;border:1px solid color-mix(in srgb,var(--ui-border) 90%,transparent);min-height:40px;padding:0 14px;background:var(--ui-surface-strong);color:var(--ui-text-soft);font-size:.8rem;font-weight:700;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 8px 16px #102b4814}.refresh-btn,.login-btn,.profile-cta-btn,.primary-link-btn,.status-reset-btn,.article-actions a,.reader-actions .reader-mark-btn{background:linear-gradient(135deg,#0a8091,#21a16d 58%,#f08a24);border-color:transparent;color:#fff}.primary-link-btn{text-decoration:none;min-width:94px}.profile-cta-btn{background:linear-gradient(135deg,#115fd4,#0f7d85 60%,#1f9a67);color:#fff}.fetch-btn{background:linear-gradient(135deg,#f48a27,#df6a35)}.warn{background:color-mix(in srgb,var(--ui-danger) 16%,white);color:#9f3041;border-color:color-mix(in srgb,var(--ui-danger) 38%,white)}.subpage-tabs,.learn-tabs,.category-tabs,.reader-tabs,.overview-switch{display:grid;gap:6px;margin-bottom:10px}.subpage-tabs{grid-template-columns:repeat(auto-fit,minmax(72px,1fr))}.learn-tabs,.reader-tabs{grid-template-columns:repeat(5,minmax(0,1fr))}.overview-switch{grid-template-columns:repeat(2,minmax(0,1fr))}.subpage-tab,.learn-tabs a,.reader-tabs button,.overview-switch button,.category-tab{border-radius:12px;border:1px solid var(--ui-border);background:var(--ui-surface-strong);color:var(--ui-text-soft);min-height:40px;padding:7px 8px;font-size:.78rem;font-weight:700;text-align:center;text-decoration:none}.subpage-tab.active,.learn-tabs a.active,.reader-tabs button.active,.overview-switch button.active,.category-tab.active,.theme-toggle-btn.active,.settings-buttons button.active{background:var(--ui-primary-soft);border-color:color-mix(in srgb,var(--ui-primary) 45%,white);color:var(--ui-primary)}.category-tabs{grid-template-columns:repeat(5,minmax(0,1fr))}.entry-grid,.stats-grid,.profile-summary,.dictionary-pack-grid,.reader-actions,.quick-actions,.mini-links{display:grid;gap:8px}.mini-links{grid-template-columns:repeat(2,minmax(0,1fr))}.mini-link-btn{width:100%;min-height:44px;border-radius:14px;font-size:.8rem}.dashboard-hint-link{margin:8px 0 0}.entry-grid,.badge-preview,.article-list,.favorites-list,.stat-bars,.dictionary-results{flex:1;min-height:0;overflow-y:auto;padding-right:2px}.reader-panel-v2{position:relative;padding-bottom:calc(84px + var(--safe-area-bottom))}.entry-grid{gap:10px}.entry-card,.article-card,.study-plan-card,.sound-settings-card,.theme-toggle-card,.learn-progress-card,.checkin-card,.recommendation-strip,.word-card,.vocab-box,.reader-analysis-card,.reader-structure-card,.reader-exercise-panel,.insight-card,.xp-bar,.dictionary-pack-card{border:1px solid var(--ui-border);border-radius:var(--ui-radius-md);background:var(--ui-surface-strong);padding:12px;box-shadow:var(--ui-shadow-soft)}.entry-word{background:radial-gradient(circle at 100% 0%,rgba(244,138,39,.22),transparent 48%),var(--ui-surface-strong)}.entry-article{background:radial-gradient(circle at 100% 0%,rgba(15,125,133,.22),transparent 48%),var(--ui-surface-strong)}.entry-tag,.feature-tag,.word-level,.flow-stage,.article-date,.learn-shortcuts,.sync-status,.empty-badge,.reader-pending-tip,.comprehension-progress,.quiz-progress{font-size:.75rem;color:var(--ui-text-muted);margin:0}.entry-card h3,.article-card h3,.recommendation-card h4,.reader-meta h3,.word-card h3{margin:6px 0;color:var(--ui-text);line-height:1.35}.entry-card p,.article-card p,.recommendation-card p,.reader-meta p,.profile-summary p,.word-english-meaning,.exercise-explain,.insight-card ul,.word-detail-window p,.favorite-word-example{color:var(--ui-text-soft);margin:0;font-size:.82rem;line-height:1.48}.favorite-word-example,.article-summary{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.entry-metrics,.profile-summary article,.stats-grid article,.xp-card{border:1px solid var(--ui-border);border-radius:10px;background:var(--ui-surface-strong);padding:8px}.entry-metrics strong,.profile-summary strong,.stats-grid strong,.entry-card strong{font-size:1.1rem;color:var(--ui-text)}.article-list{display:grid;gap:8px}.article-headline{display:flex;align-items:center;justify-content:space-between;gap:8px}.article-meta-badges,.favorite-actions-row,.profile-actions,.article-actions,.settings-buttons,.exercise-actions{display:flex;gap:8px}.article-actions,.profile-actions{flex-wrap:wrap}.profile-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.profile-actions>*{min-width:0}.profile-actions>:only-child,.profile-actions .warn{grid-column:1 / -1}.profile-bottom,.page-bottom{margin-top:auto;display:grid;gap:10px}.bottom-card-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.bottom-card-head h3{margin:0;font-size:.96rem;letter-spacing:.01em;color:var(--ui-text)}.page-bottom .mini-links{margin-top:10px}.bottom-note{text-align:center;color:var(--ui-text-muted);font-size:.82rem;margin:0}.profile-activity-card{border:1px solid var(--ui-border);border-radius:var(--ui-radius-md);background:var(--ui-surface-strong);padding:12px;box-shadow:var(--ui-shadow-soft)}.profile-activity-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.profile-activity-head h3{margin:0;font-size:.96rem;letter-spacing:.01em;color:var(--ui-text)}.profile-activity-list{list-style:none;padding:0;margin:0;display:grid;gap:8px}.profile-activity-item{width:100%;border:1px solid var(--ui-border);background:linear-gradient(135deg,color-mix(in srgb,var(--ui-primary) 10%,white),color-mix(in srgb,var(--ui-secondary) 10%,white));border-radius:16px;padding:10px;text-align:left;display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.profile-activity-text{display:grid;gap:3px;min-width:0}.profile-activity-text strong{color:var(--ui-text);font-size:.84rem;font-weight:800;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.profile-activity-text small{color:var(--ui-text-muted);font-size:.72rem}.profile-activity-arrow{color:var(--ui-text-muted);font-weight:900;line-height:1;padding-top:2px}.profile-bottom .mini-links{margin-top:10px}.article-category,.article-level,.level-tag,.badge-chip{border-radius:999px;padding:2px 8px;font-size:.7rem;font-weight:700}.article-category{background:#0f7d8524;color:#0b6a74}.article-level{background:#f48a272e;color:#b45f0f}.level-cet4{background:#1f9a672e;color:#138357}.level-cet6{background:#1280e02e;color:#1d63b4}.level-ielts{background:#f48a2733;color:#b35e17}.level-toefl{background:#d84b5733;color:#ab2e3e}.recommendation-strip{display:grid;gap:8px;flex:1;min-height:0;background:radial-gradient(circle at 0% 0%,rgba(244,138,39,.2),transparent 42%),radial-gradient(circle at 100% 0%,rgba(15,125,133,.2),transparent 48%),var(--ui-surface-strong)}.recommendation-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.recommendation-header h3{margin:0}.recommendation-card-pager{display:grid;gap:8px}.recommendation-pager-controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;align-items:center}.recommendation-pager-controls span{text-align:center;color:var(--ui-text-muted);font-size:.75rem}.word-card{display:grid;gap:8px;background:radial-gradient(circle at 100% 0%,rgba(244,138,39,.2),transparent 40%),var(--ui-surface-strong)}.word-head-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.word-phonetic-btn,.word-inline-btn{border:none;background:transparent;color:var(--ui-primary);font-weight:700;padding:0;text-align:left}.quiz-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.quiz-option,.exercise-option{border:1px solid var(--ui-border);border-radius:10px;background:var(--ui-surface-strong);padding:8px;color:var(--ui-text-soft);display:flex;align-items:flex-start;gap:8px;text-align:left;font-size:.8rem}.quiz-option.selected,.exercise-option.selected{border-color:color-mix(in srgb,var(--ui-primary) 42%,white);background:var(--ui-primary-soft)}.quiz-option.correct,.exercise-option.correct{border-color:color-mix(in srgb,var(--ui-success) 55%,white);background:color-mix(in srgb,var(--ui-success) 14%,white)}.exercise-option.wrong{border-color:color-mix(in srgb,var(--ui-danger) 60%,white);background:color-mix(in srgb,var(--ui-danger) 14%,white)}.quiz-result.ok{color:var(--ui-success)}.quiz-result.bad{color:var(--ui-danger)}.word-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.word-actions button:last-child{background:linear-gradient(135deg,#0f7d85,#1f9a67 55%,#f48a27);border-color:transparent;color:#fff}.spelling-input,.account-input input,.account-input select{width:100%;border:1px solid var(--ui-border);border-radius:10px;min-height:40px;padding:8px 10px;background:var(--ui-surface-strong);color:var(--ui-text)}.account-input{display:grid;gap:6px}.account-input span{color:var(--ui-text-soft);font-size:.78rem}.account-input small{color:var(--ui-text-muted);font-size:.72rem}.profile-summary,.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.sound-settings-head,.stat-title-row,.article-card footer,.reader-heading,.reader-meta{display:flex;align-items:center;justify-content:space-between;gap:8px}.sound-volume-row{display:grid;gap:6px}.sound-volume-row input[type=range]{width:100%}.dictionary-pack-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.dictionary-results{display:grid;gap:8px}.dictionary-search-card{flex:1;display:flex;flex-direction:column;min-height:0}.dictionary-search-card .dictionary-results{flex:1;max-height:none}.word-row-card{border:1px solid var(--ui-border);border-radius:var(--ui-radius-md);background:var(--ui-surface-strong);padding:10px 12px;box-shadow:var(--ui-shadow-soft);display:grid;gap:6px}.word-row-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.word-row-head .word-inline-btn{font-size:1rem}.word-row-meta{font-size:.75rem;color:var(--ui-text-muted);margin:0}.word-row-meaning{font-size:.84rem;color:var(--ui-text-soft);margin:0;line-height:1.35}.word-row-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:6px}.learn-progress-card,.stat-bars,.badge-preview,.insight-card,.vocab-box,.reader-analysis-panel,.reader-structure-panel,.reader-exercise-panel,.reader-settings,.favorites-list,.article-list,.profile-panel,.stats-panel,.dashboard-panel,.words-panel,.article-panel{min-height:0}.library-pagination{margin-top:8px;display:flex;align-items:center;justify-content:space-between;gap:8px}.library-pagination span{color:var(--ui-text-muted);font-size:.76rem}.checkin-card{display:grid;gap:8px;background:radial-gradient(circle at 0% 0%,rgba(15,125,133,.18),transparent 46%),radial-gradient(circle at 100% 0%,rgba(244,138,39,.18),transparent 44%),var(--ui-surface-strong)}.checkin-card p{margin:0;color:var(--ui-text-soft)}.checkin-card strong{font-size:1.2rem;color:var(--ui-text)}.reader-screen{height:100%;display:flex;flex-direction:column;background:var(--ui-surface-strong);border-radius:0}.reader-scroll{flex:1;min-height:0;overflow-y:auto;padding:16px 14px 18px}.reader-title{display:grid;gap:6px;margin-bottom:14px}.reader-title h2{margin:0;font-size:1.34rem;line-height:1.22;letter-spacing:.01em;color:var(--ui-text)}.reader-meta-line{margin:0;font-size:.78rem;color:var(--ui-text-muted)}.reader-body{display:grid;gap:12px;color:var(--ui-text-soft);line-height:1.88}.reader-paragraph-block{display:grid;gap:8px}.reader-word-token{border:none;background:transparent;padding:0;margin:0;font:inherit;line-height:inherit;color:inherit;cursor:pointer;border-radius:4px;display:inline;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.reader-word-token:hover{text-decoration:underline;text-decoration-style:dotted;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:color-mix(in srgb,var(--ui-primary) 60%,transparent)}.reader-word-token:active{text-decoration:none;background:color-mix(in srgb,var(--ui-primary) 16%,transparent)}.reader-word-token:focus-visible{outline:2px solid color-mix(in srgb,var(--ui-primary) 55%,transparent);outline-offset:2px}.reader-actionbar{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;align-items:center;padding:11px 12px calc(11px + var(--safe-area-bottom));border-top:1px solid var(--ui-border);background:color-mix(in srgb,var(--ui-surface-strong) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.reader-actionbar button{min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-tools-btn{border-radius:999px;min-width:64px}.reader-actionbar .reader-back-btn,.reader-actionbar .reader-mark-btn{min-height:48px;border-radius:999px;font-size:.84rem;font-weight:700}.reader-actionbar .reader-back-btn{border:1px solid var(--ui-border);background:var(--ui-surface-strong);color:var(--ui-text-soft)}.reader-actionbar .reader-mark-btn{background:linear-gradient(135deg,#0a8091,#21a16d 58%,#f08a24);border-color:transparent;color:#fff}.reader-tools{display:grid;gap:10px}.reader-tools-tabs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.reader-tools-tabs button{border-radius:999px;border:1px solid var(--ui-border);background:var(--ui-surface-strong);color:var(--ui-text-soft);min-height:36px;padding:0 10px;font-size:.74rem;font-weight:750}.reader-tools-tabs button.active{background:var(--ui-primary-soft);border-color:color-mix(in srgb,var(--ui-primary) 45%,white);color:var(--ui-primary)}.translation-toolbar,.reader-paragraph-block,.reader-analysis-card,.reader-structure-card,.exercise-card,.reader-actions,.exercise-actions{margin-top:8px}.translation-toggle{margin-top:6px;border:1px solid var(--ui-border);border-radius:8px;min-height:30px;padding:0 10px;background:var(--ui-surface-strong);color:var(--ui-text-soft);font-size:.75rem;font-weight:650}.article-translation{margin-top:6px;border-left:3px solid var(--ui-primary);padding:6px 8px;border-radius:8px;background:var(--ui-primary-soft)}.reader-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.reader-floating-actions{position:sticky;bottom:0;z-index:6;padding-top:10px;border-top:1px solid var(--ui-border);background:linear-gradient(180deg,color-mix(in srgb,var(--ui-surface-strong) 35%,transparent),color-mix(in srgb,var(--ui-surface-strong) 92%,transparent) 28%);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.reader-actions button{min-height:40px}.reader-back-btn{background:var(--ui-surface-strong)}.favorites-list{display:flex;flex-direction:column;gap:8px;align-content:start}.library-shelf{margin-top:auto}.favorites-list .article-card{padding:8px 10px;gap:6px}.favorites-list .article-card p{font-size:.78rem}.modal-overlay{position:fixed;inset:0;background:#09132285;display:flex;align-items:flex-end;justify-content:center;padding:12px;z-index:100;overscroll-behavior:none}.modal-panel{width:min(440px,100%);max-height:calc(100dvh - 24px - var(--safe-area-top-effective));display:grid;grid-template-rows:auto 1fr;border-radius:16px;border:1px solid var(--ui-border);background:var(--ui-surface-strong);box-shadow:var(--ui-shadow);overflow:hidden}.modal-header{padding:10px 12px;border-bottom:1px solid var(--ui-border)}.modal-header h3{margin:0;font-size:.98rem}.modal-header button{min-height:30px;border-radius:8px;border:1px solid var(--ui-border);background:var(--ui-surface);color:var(--ui-text-soft);font-size:.76rem}.modal-content{padding:12px;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:calc(12px + var(--safe-area-bottom));overscroll-behavior:contain;touch-action:pan-y}.learning-calendar{margin-top:6px}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.calendar-cell{aspect-ratio:1;border-radius:5px;background:color-mix(in srgb,var(--ui-primary) 10%,white)}.calendar-active{background:color-mix(in srgb,var(--ui-primary) 55%,white)}.calendar-today{outline:2px solid var(--ui-secondary);outline-offset:1px}.daily-progress{display:grid;justify-items:center;gap:5px}.daily-progress-label{font-weight:650}.badge-chip{border:1px solid var(--ui-border);background:var(--ui-surface-strong);color:var(--ui-text-soft)}.badge-locked{opacity:.42}.quiz-option,.exercise-option,.safe-bottom-nav a,.subpage-tab,.learn-tabs a,.reader-tabs button,.overview-switch button,.category-tab,.theme-toggle-btn,.refresh-btn,.ghost-btn,.login-btn,.profile-cta-btn,.primary-link-btn,.status-reset-btn,.word-actions button,.checkin-card button{transition:transform .16s ease,box-shadow .16s ease,background .2s ease,color .2s ease,border-color .2s ease}button:hover,a:hover{transform:translateY(-1px)}button:active,a:active{transform:translateY(0)}@media(min-width:760px){#root{padding:20px}.mobile-app-shell{height:min(930px,calc(100dvh - 40px));max-height:min(930px,calc(100dvh - 40px));border-radius:28px;border:1px solid var(--ui-border);box-shadow:0 26px 60px #09182c4d}}@media(max-width:390px){.panel{padding:9px}.mobile-topbar{min-height:34px;margin:5px 6px 3px;padding:4px 10px}.safe-bottom-nav{height:calc(72px + var(--safe-area-bottom));padding:7px 8px calc(7px + var(--safe-area-bottom));gap:5px}.safe-bottom-nav a{font-size:.67rem;height:52px}.learn-tabs,.reader-tabs,.subpage-tabs{gap:5px}.learn-tabs a,.subpage-tab,.reader-tabs button{font-size:.7rem}.word-actions,.dictionary-pack-grid{grid-template-columns:1fr}.full-article-content.immersive{max-height:min(62vh,620px);padding:12px 10px 16px}}