/* Folio v2 数字字体随项目分发，离线打开也能保持一致。 */
@font-face{
 font-family:"DM Mono";src:url("fonts/dm-mono/DMMono-Regular.ttf") format("truetype");
 font-style:normal;font-weight:400;font-display:swap;font-feature-settings:"lnum" 1,"tnum" 1;
}
@font-face{
 font-family:"DM Mono";src:url("fonts/dm-mono/DMMono-Medium.ttf") format("truetype");
 font-style:normal;font-weight:500;font-display:swap;font-feature-settings:"lnum" 1,"tnum" 1;
}
/* 只接管数字，让正文、标题和输入框中的数字使用同一套字形。 */
@font-face{
 font-family:"Folio Numerals";src:url("fonts/dm-mono/DMMono-Regular.ttf") format("truetype");
 font-style:normal;font-weight:400;font-display:swap;unicode-range:U+0030-0039;
 font-feature-settings:"lnum" 1,"tnum" 1;
}
@font-face{
 font-family:"Folio Numerals";src:url("fonts/dm-mono/DMMono-Medium.ttf") format("truetype");
 font-style:normal;font-weight:500;font-display:swap;unicode-range:U+0030-0039;
 font-feature-settings:"lnum" 1,"tnum" 1;
}
/* Folio — 暖纸质感。所有组件颜色都由这组语义令牌控制。 */
:root{
 --hue:40;--nh:85;--nc:.008;
 --bg:oklch(.965 var(--nc) var(--nh));--surface:oklch(.985 var(--nc) var(--nh));--surface-alt:oklch(.94 var(--nc) var(--nh));
 --ink:oklch(.28 var(--nc) var(--nh));--text:oklch(.40 var(--nc) var(--nh));--muted:oklch(.49 var(--nc) var(--nh));
 --line:oklch(.83 var(--nc) var(--nh));--line-soft:oklch(.90 var(--nc) var(--nh));
 --accent:oklch(.49 .125 var(--hue));--accent-hover:oklch(.43 .12 var(--hue));--accent-soft:oklch(.94 .027 var(--hue));--on-accent:oklch(.985 var(--nc) var(--nh));
 --c2:oklch(.78 .045 calc(var(--hue) + 180));--c2-soft:oklch(.92 .018 calc(var(--hue) + 180));--c3:oklch(.86 .065 calc(var(--hue) + 45));--c3-soft:oklch(.94 .03 calc(var(--hue) + 45));
 --danger:oklch(.45 .14 25);--danger-soft:oklch(.95 .023 25);--warning:oklch(.43 .06 65);--warning-soft:oklch(.95 .027 85);
 --scrim:oklch(.25 var(--nc) var(--nh) / .48);--hover-shadow:0 12px 28px oklch(.28 var(--nc) var(--nh) / .07);
 --sans:"Folio Numerals","Hanken Grotesk","Noto Sans SC","Microsoft YaHei","PingFang SC",sans-serif;
 --serif:"Folio Numerals","Noto Serif SC","Source Han Serif SC",Georgia,"Songti SC",SimSun,serif;
 --mono:"DM Mono",Consolas,"Noto Sans SC",monospace;
 --s-1:4px;--s-2:8px;--s-3:12px;--s-4:16px;--s-5:24px;--s-6:32px;--s-7:48px;--s-8:64px;--s-9:96px;
 --control-line:oklch(.62 var(--nc) var(--nh));--control-radius:8px;--container-radius:14px;--pill-radius:999px;--fast:160ms;--normal:240ms;--slow:320ms;--sidebar-width:224px;color-scheme:light;
}
@media(prefers-color-scheme:dark){
 :root:not([data-theme="light"]){
  --bg:oklch(.22 var(--nc) var(--nh));--surface:oklch(.26 var(--nc) var(--nh));--surface-alt:oklch(.30 var(--nc) var(--nh));
  --ink:oklch(.92 var(--nc) var(--nh));--text:oklch(.83 var(--nc) var(--nh));--muted:oklch(.74 var(--nc) var(--nh));
  --line:oklch(.46 var(--nc) var(--nh));--line-soft:oklch(.36 var(--nc) var(--nh));--accent:oklch(.76 .10 var(--hue));--accent-hover:oklch(.82 .085 var(--hue));--accent-soft:oklch(.32 .032 var(--hue));--on-accent:oklch(.23 var(--nc) var(--nh));
  --c2:oklch(.53 .04 calc(var(--hue) + 180));--c2-soft:oklch(.31 .022 calc(var(--hue) + 180));--c3:oklch(.61 .065 calc(var(--hue) + 45));--c3-soft:oklch(.33 .025 calc(var(--hue) + 45));
  --danger:oklch(.78 .10 25);--danger-soft:oklch(.31 .035 25);--warning:oklch(.82 .06 85);--warning-soft:oklch(.32 .026 85);--scrim:oklch(.12 .01 65 / .70);--control-line:oklch(.60 var(--nc) var(--nh));color-scheme:dark;
 }
}
:root[data-theme="dark"]{
 --bg:oklch(.22 var(--nc) var(--nh));--surface:oklch(.26 var(--nc) var(--nh));--surface-alt:oklch(.30 var(--nc) var(--nh));
 --ink:oklch(.92 var(--nc) var(--nh));--text:oklch(.83 var(--nc) var(--nh));--muted:oklch(.74 var(--nc) var(--nh));
 --line:oklch(.46 var(--nc) var(--nh));--line-soft:oklch(.36 var(--nc) var(--nh));--accent:oklch(.76 .10 var(--hue));--accent-hover:oklch(.82 .085 var(--hue));--accent-soft:oklch(.32 .032 var(--hue));--on-accent:oklch(.23 var(--nc) var(--nh));
 --c2:oklch(.53 .04 calc(var(--hue) + 180));--c2-soft:oklch(.31 .022 calc(var(--hue) + 180));--c3:oklch(.61 .065 calc(var(--hue) + 45));--c3-soft:oklch(.33 .025 calc(var(--hue) + 45));
 --danger:oklch(.78 .10 25);--danger-soft:oklch(.31 .035 25);--warning:oklch(.82 .06 85);--warning-soft:oklch(.32 .026 85);--scrim:oklch(.12 .01 65 / .70);--control-line:oklch(.60 var(--nc) var(--nh));color-scheme:dark;
}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);font-variant-numeric:lining-nums tabular-nums;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit;color:inherit}button,a{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button{border:0;background:none;cursor:pointer}a{color:inherit;text-decoration:none}
button,a,input,select,summary{transition:background-color var(--fast),color var(--fast),border-color var(--fast),box-shadow var(--slow),transform var(--slow)}
button:disabled{cursor:default;color:var(--muted);background:var(--surface-alt);border-color:var(--line-soft)}button:active:not(:disabled){transform:translateY(1px)}
:focus-visible{outline:2px solid var(--accent);outline-offset:4px}input,select{accent-color:var(--accent)}input::placeholder{color:var(--muted);opacity:1}input:focus-visible,select:focus-visible{border-color:var(--accent)}
h1,h2,h3{font-family:var(--sans);font-weight:500;text-wrap:balance}h2,h3,p{margin-top:0}p{font-family:var(--serif)}
svg.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}
.skip-link{position:fixed;top:-80px;left:20px;padding:12px 20px;background:var(--accent);color:var(--on-accent);z-index:50;border-radius:var(--control-radius)}.skip-link:focus{top:12px}
/* 学习空间的安静边栏 */
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-width);padding:40px 20px 24px;background:var(--surface);border-right:1px solid var(--line-soft);display:flex;flex-direction:column;overflow-y:auto;overscroll-behavior:contain;z-index:10}
.brand{display:flex;align-items:center;gap:12px;padding:0 12px;line-height:1.2;font-size:28px;font-weight:500;letter-spacing:2px}.brand-mark{display:flex;width:40px;height:48px;color:var(--accent);flex-shrink:0}
.brand-mark svg{width:100%;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.brand-sub{display:block;font-family:var(--serif);font-weight:400;font-size:12px;color:var(--muted);letter-spacing:.03em;margin-top:9px}
.nav-caption{font:12px/1.5 var(--mono);color:var(--muted);letter-spacing:.04em;margin:56px 16px 16px}
nav{display:flex;flex-direction:column;gap:8px}nav a{display:flex;gap:12px;align-items:center;min-height:52px;padding:0 16px;border-radius:var(--control-radius);font-size:15px;color:var(--text)}
nav a:hover{background:var(--surface-alt)}nav a.active{color:var(--accent);background:var(--accent-soft);font-weight:500}nav a>span:first-child{display:flex}
.nav-dot{display:none;width:5px;height:5px;margin-left:auto;background:var(--accent);border-radius:var(--pill-radius)}nav a.active .nav-dot{display:block}
.nav-count{margin-left:auto;padding:0 6px;border:1px solid var(--line);border-radius:4px;font:12px/1.5 var(--mono);color:var(--muted)}
.sidebar-bottom{margin-top:auto;padding-top:48px}.sidebar-note{margin:0 12px 28px;padding-top:24px;border-top:1px solid var(--line-soft)}
.note-sprout{color:var(--text)}.note-sprout svg.icon{width:28px;height:28px}.sidebar-note strong{display:block;margin:12px 0 8px;font:500 16px/1.6 var(--serif)}
.sidebar-note p{margin:0;color:var(--muted);font-size:13px;line-height:1.9}.note-line{display:none}
.settings-link{display:flex;gap:12px;align-items:center;width:100%;min-height:48px;padding:0 16px;color:var(--muted);font-size:14px;border-radius:var(--control-radius)}.settings-link:hover{background:var(--surface-alt);color:var(--accent)}
.profile{display:flex;align-items:center;gap:12px;padding:24px 10px 0;margin-top:20px;border-top:1px solid var(--line-soft)}
.avatar{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);border-radius:var(--pill-radius);background:var(--surface-alt);font:18px var(--serif);flex-shrink:0}
.profile strong{font-size:14px;font-weight:500}.profile small{display:block;margin-top:4px;color:var(--muted);font-size:12px}.local-dot{width:5px;height:5px;margin-left:auto;background:var(--text);border-radius:var(--pill-radius)}
.workspace{margin-left:var(--sidebar-width)}.topbar{display:flex;justify-content:space-between;align-items:center;gap:24px;height:88px;padding:0 48px;border-bottom:1px solid var(--line-soft)}
.breadcrumb{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:12px;white-space:nowrap}.breadcrumb strong{color:var(--ink);font-weight:500}.breadcrumb span{color:var(--muted)}
.topbar-actions{display:flex;align-items:center;gap:24px}.search-box{display:flex;align-items:center;gap:10px;color:var(--muted)}.search-box .icon{width:18px;height:18px}
.search-box input{border:0;background:none;width:152px;padding:10px 0;min-height:44px;font-size:13px}.search-box kbd{padding:0 6px;font:12px/1.6 var(--mono);border:1px solid var(--line);border-radius:4px}
.header-divider{height:18px;width:1px;background:var(--line)}.header-date{font:12px/1.5 var(--mono);color:var(--muted)}.mobile-settings{display:none!important}
main{width:100%;max-width:1456px;min-height:calc(100dvh - 172px);margin:auto;padding:48px 48px 0}
.page-heading{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:48px}.eyebrow{display:flex;align-items:center;gap:8px;margin-bottom:14px;font:12px/1.5 var(--mono);color:var(--muted);letter-spacing:.04em}.eyebrow .icon{width:16px;height:16px}
h1{font-size:clamp(28px,2.6vw,38px);line-height:1.35;letter-spacing:-.025em;margin:0}.page-heading p{font:400 16px/1.75 var(--serif);color:var(--muted);margin:14px 0 0}
.streak-pill{display:flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line);border-radius:var(--pill-radius);color:var(--text);font:12px/1.5 var(--mono);white-space:nowrap}.streak-pill .icon{width:17px;height:17px}.streak-pill strong{font-size:16px;font-weight:500}
/* 主行动：同屏只给一个实心按钮 */
.primary,.secondary{min-height:48px;padding:10px 20px;display:inline-flex;align-items:center;justify-content:center;gap:12px;border:1px solid var(--accent);border-radius:var(--control-radius);font:500 14px/1.5 var(--sans)}
.primary{color:var(--on-accent);background:var(--accent)}.primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}
.secondary{background:transparent;color:var(--text);border-color:var(--line)}.secondary:hover:not(:disabled){color:var(--accent);background:var(--accent-soft);border-color:var(--accent)}
.primary:disabled,.secondary:disabled{color:var(--muted);border-color:var(--line);background:var(--surface-alt)}
.primary .icon,.secondary .icon{width:18px;height:18px}
.text-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;color:var(--muted);font:400 12px/1.5 var(--mono)}.text-button:hover{color:var(--accent)}.text-button .icon{width:15px;height:15px}
.icon-button{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;padding:0;color:var(--text);border-radius:var(--pill-radius);flex-shrink:0}.icon-button:hover{background:var(--accent-soft);color:var(--accent)}.icon-button .icon{width:20px;height:20px}
/* 首页 */
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}.hero{position:relative;overflow:hidden;display:flex;align-items:center;padding:40px;min-height:360px;background:var(--surface);border:1px solid var(--line);border-radius:var(--container-radius)}
.hero-content{position:relative;z-index:1;max-width:calc(100% - 200px)}.hero-tag{display:flex;align-items:center;gap:8px;margin-bottom:24px;color:var(--muted);font:12px/1.5 var(--mono);letter-spacing:.04em}
.hero-tag>span{width:5px;height:5px;background:var(--accent);border-radius:var(--pill-radius)}.hero h2{font-size:clamp(32px,3vw,56px);line-height:1.35;letter-spacing:-.025em;margin:0 0 20px}
.hero p{margin:0 0 28px;font-size:16px;color:var(--text);line-height:1.8;max-width:26em}.hero-action{display:flex;align-items:center;flex-wrap:wrap;gap:16px}.hero-action small{font:12px/1.5 var(--mono);color:var(--muted)}
.hero-art{position:absolute;width:252px;height:276px;right:16px;bottom:28px;pointer-events:none}.daily-word{padding:24px;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface)}
.hero-learning-note { display: flex; flex-wrap: wrap; gap: 4px 16px; margin-top: 12px; color: var(--muted); font: 12px/1.6 var(--mono); }
.hero .hero-action { flex-direction: row; align-items: center; gap: 10px; }
.hero .hero-action .primary, .hero .hero-action .secondary { padding-inline: 16px; }
@media(max-width:600px) {
 .hero:has(.hero-learning-note) .hero-art { display: none; }
 .hero:has(.hero-learning-note) .hero-action { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); width: 100%; }
 .hero:has(.hero-learning-note) .hero-action .primary { grid-column: 1 / -1; }
}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.mini-label{display:flex;align-items:center;gap:8px;color:var(--muted);font:12px/1.5 var(--mono)}.mini-label .icon{width:16px;height:16px}
.tag{display:inline-flex;align-items:center;min-height:25px;padding:2px 8px;border:1px solid var(--line);border-radius:4px;color:var(--muted);font:12px/1.5 var(--mono)}
.daily-word .word-heading{margin:36px 0 8px;font:400 36px/1.25 var(--serif);letter-spacing:-.045em;overflow-wrap:anywhere}
.phonetic-row{display:flex;align-items:center;gap:8px;font:13px/1.5 var(--mono);color:var(--muted)}.daily-meaning{font-size:16px;line-height:1.8;color:var(--text);margin:12px 0 24px}
.daily-quote{font:400 17px/1.65 var(--serif);color:var(--text);border-top:1px solid var(--line-soft);padding-top:20px;margin:0}.daily-quote small{display:block;font:12px/1.8 var(--serif);color:var(--muted);margin-top:8px}
.stats-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:48px 0 96px}
.stat-item{display:flex;align-items:center;gap:16px;min-width:0;padding:0 24px;border-right:1px solid var(--line)}.stat-item:first-child{padding-left:0}.stat-item:last-child{border-right:0;padding-right:0}
.stat-icon{display:grid;place-items:center;width:40px;height:40px;flex-shrink:0;border:1px solid var(--line);border-radius:var(--pill-radius);color:var(--muted)}
.stat-label{color:var(--muted);font:12px/1.5 var(--mono);white-space:nowrap}.stat-value{margin-top:8px;font:500 32px/1.2 var(--mono);letter-spacing:-.04em;font-variant-numeric:tabular-nums}.stat-value small{margin-left:6px;color:var(--muted);font:400 12px/1.5 var(--mono);letter-spacing:0}
.bottom-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}.section-title{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0 0 24px;font:500 24px/1.35 var(--sans)}
.panel{padding:24px;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface)}.book-panel{display:flex;align-items:center;gap:24px;min-height:200px}
.book-cover{display:flex;flex-direction:column;align-items:flex-start;position:relative;overflow:hidden;width:100px;min-width:100px;height:140px;padding:16px 12px;border:1px solid var(--ink);border-left-width:3px;border-radius:2px 6px 6px 2px;color:var(--ink);background:var(--surface-alt)}
.book-cover.blue{background:var(--c2-soft)}.book-cover.clay{background:var(--c3-soft)}.book-cover:after{content:"";position:absolute;width:90px;height:90px;right:-21px;bottom:-49px;border:2px solid var(--ink);border-radius:var(--pill-radius);transform:rotate(-12deg)}
.book-cover small{font:9px/1.5 var(--mono);letter-spacing:.04em}.book-cover strong{margin-top:20px;font:500 22px/1.2 var(--mono);letter-spacing:-.07em;white-space:nowrap}.book-cover>span{font:12px/1.5 var(--serif);margin-top:6px}
.book-info{min-width:0;flex:1}.book-info h3{font-size:20px;margin:0 0 10px;overflow-wrap:anywhere}.book-info>p{color:var(--muted);font:14px/1.7 var(--serif);margin-bottom:20px}
.progress-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font:12px/1.5 var(--mono)}.progress-meta strong{color:var(--text);font-weight:500}
.progress-track{overflow:hidden;height:4px;background:var(--line-soft);margin:10px 0 16px;border-radius:2px}.progress-track>span{display:block;height:100%;background:var(--text);transition:width var(--normal)}
.book-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;color:var(--muted);font:12px/1.5 var(--mono)}.book-bottom .text-button{color:var(--accent)}
.book-review-actions{display:flex;flex-wrap:wrap;gap:0 8px}
.week-panel{min-height:200px}.week-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;font:12px/1.5 var(--mono);color:var(--muted)}.week-summary strong{margin-right:8px;color:var(--ink);font-size:24px;font-weight:500}
.chart-legend{display:flex;align-items:center;gap:6px;font-size:12px}.chart-legend:before{content:"";width:7px;height:7px;border:1px solid var(--text);background:var(--c2);border-radius:2px}
.week-chart{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px;height:124px;padding-top:12px;border-bottom:1px solid var(--line-soft)}
.day-bar{display:flex;align-items:center;justify-content:flex-end;flex-direction:column;gap:10px}.bar-space{position:relative;display:flex;align-items:flex-end;justify-content:center;flex:1;width:24px}
.bar{width:22px;min-height:3px;max-height:83px;border-radius:3px 3px 0 0;background:var(--c2)}.day-bar.today .bar{background:var(--text)}
.day-bar>span{color:var(--muted);font:12px/1.5 var(--mono)}.day-bar.today>span{color:var(--ink)}.bar-value{position:absolute;bottom:calc(var(--height) + 4px);color:var(--text);font:12px/1.5 var(--mono)}
.gentle-tip{display:flex;align-items:center;justify-content:center;gap:8px;margin:48px 0 0;color:var(--muted);font:14px/1.75 var(--serif)}.gentle-tip .icon{width:16px;height:16px;flex-shrink:0}
.footer{display:flex;justify-content:space-between;gap:16px;max-width:1456px;margin:0 auto;padding:48px;color:var(--muted);font:12px/1.5 var(--mono)}
/* 词书和词汇 */
.import-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin:0 0 48px}
.import-banner h2{font-size:24px;margin:0 0 12px}.import-banner p{font-size:16px;color:var(--text);margin:0}.import-banner .primary{flex-shrink:0}
.books-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.library-card{display:flex;flex-direction:column;align-items:flex-start;min-width:0;padding:24px;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface);transition:transform var(--slow),box-shadow var(--slow)}
@media(hover:hover){.library-card:hover{transform:translateY(-3px);box-shadow:var(--hover-shadow)}}
.library-card .book-cover{width:120px;height:160px;margin:8px auto 28px}.library-card .book-cover strong{font-size:28px}
.library-card h2{font-size:20px;line-height:1.5;margin:0 0 12px;overflow-wrap:anywhere}.library-card p{color:var(--muted);font:15px/1.8 var(--serif);min-height:54px;margin-bottom:24px}
.library-card .progress-meta{width:100%;margin-top:auto}.library-card .progress-track{width:100%;margin-bottom:24px}
.library-actions{display:flex;gap:8px;width:100%}.library-actions button{flex:1;min-width:0;padding:10px 12px;font-size:13px}
.info-note{color:var(--muted);font:14px/1.8 var(--serif);margin-top:24px}
.list-toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;margin-bottom:24px}.filter-tabs{display:flex;flex-wrap:wrap;gap:8px}
.filter-tabs button{min-height:44px;padding:10px 16px;border:1px solid transparent;border-radius:var(--control-radius);color:var(--muted);font:12px/1.5 var(--mono)}.filter-tabs button:hover{color:var(--accent)}.filter-tabs button.active{background:var(--accent-soft);border-color:var(--line);color:var(--accent)}
.list-search{display:flex;align-items:center;gap:10px;min-height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--control-radius);background:var(--surface)}
.list-search .icon{width:18px;height:18px;color:var(--muted)}.list-search input{border:0;background:none;min-width:0;width:200px;min-height:44px;padding:8px 0;font-size:15px}
.word-list{overflow:hidden;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface)}
.word-row{display:grid;grid-template-columns:minmax(100px,1fr) minmax(120px,1.3fr) 76px 96px;align-items:center;gap:20px;padding:20px 24px;border-bottom:1px solid var(--line-soft)}
.word-row:last-child{border-bottom:0}.word-row>div{min-width:0}.word-row strong{font:400 25px/1.4 var(--serif);overflow-wrap:anywhere}.word-row small{display:block;color:var(--muted);font:12px/1.8 var(--mono);overflow-wrap:anywhere}
.definition{color:var(--text);font:16px/1.8 var(--serif);overflow-wrap:anywhere}.word-status{color:var(--muted);font:12px/1.5 var(--mono)}
.row-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px}.is-favorite{color:var(--accent)}.is-favorite .icon{fill:var(--accent-soft)}
.word-pagination{display:flex;align-items:center;justify-content:center;gap:24px;margin:32px 0;color:var(--muted);font:12px/1.5 var(--mono)}
.empty{padding:64px 24px;text-align:center;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface)}
.empty>.icon{width:44px;height:44px;color:var(--muted);margin-bottom:24px}.empty h2{font-size:24px;margin-bottom:16px}.empty p{font:17px/1.75 var(--serif);color:var(--muted);margin-bottom:32px}
.stat-detail{display:grid;grid-template-columns:1.1fr 1fr;gap:32px}.stat-detail h2{font-size:24px;margin-bottom:28px}.stat-detail .week-chart{height:200px}
.progress-row{padding:20px 0;border-bottom:1px solid var(--line-soft)}.progress-row:last-of-type{border:0}
.review-explainer{font:17px/1.8 var(--serif);color:var(--text);margin-top:48px;max-width:70em}.review-explainer strong{font:500 20px/1.5 var(--sans);color:var(--ink)}
/* 设置和导入弹窗 */
dialog{padding:0;max-height:90dvh;border:1px solid var(--line);border-radius:var(--container-radius);background:var(--surface);color:var(--ink)}dialog::backdrop{background:var(--scrim)}
.dialog-top{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 32px;border-bottom:1px solid var(--line-soft);background:var(--surface)}
.dialog-top h2{font-size:18px;line-height:1.5;margin:0}.dialog-top small{display:block;color:var(--muted);font:12px/1.65 var(--serif);margin-top:5px}
/* 单词练习在主内容区展开 */
.workspace:has(.study-page) {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  min-height: 360px;
}
.workspace:has(.study-page) > .topbar { flex: none; height: 56px; }
.workspace:has(.study-page) > .footer { display: none; }
.workspace:has(.study-page) > main {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 0;
  padding-block: clamp(12px, 3dvh, 32px);
}
.study-page {
  display: flex;
  flex: 1;
  flex-direction: column;
  width: 100%;
  max-width: 860px;
  min-height: 0;
  max-height: 640px;
  margin-inline: auto;
}
.study-header { display: flex; align-items: end; justify-content: space-between; gap: 16px; }
.list-study-page { max-width: 1000px; max-height: none; }
.workspace:has(.list-study-page) > main { padding-block: 8px; }
.list-study-page .study-header h1 { font-size: 26px; line-height: 1.2; }
.list-study-page .study-book { line-height: 1.4; }
.list-study-help { flex: none; margin: 8px 0 4px; color: var(--muted); font: 13px/1.5 var(--sans); }
.list-study-count { flex: none; margin-bottom: 6px; color: var(--muted); font: 12px/1.5 var(--mono); }
.list-study-scroll { min-height: 0; overflow-y: auto; overscroll-behavior: contain; border-block: 1px solid var(--line); }
.list-study-table { width: 100%; table-layout: fixed; border-collapse: collapse; text-align: left; }
.list-study-table th { position: sticky; top: 0; z-index: 1; background: var(--bg); padding: 4px 12px; color: var(--muted); font: 400 12px/1.5 var(--mono); }
.list-study-table th:nth-child(1) { width: 27%; }
.list-study-table th:nth-child(2) { width: 25%; }
.list-study-table th:last-child { width: 68px; }
.list-study-table td { padding: 0 12px; border-top: 1px solid var(--line-soft); vertical-align: top; }
.list-study-table button { display: block; width: 100%; min-height: 44px; padding: 8px 0; text-align: left; overflow-wrap: anywhere; border-radius: 4px; }
.list-study-table button:hover { color: var(--accent); }
.list-study-table .remove-word { text-align: center; font: 13px/1.5 var(--sans); }
.remove-word { color: var(--accent); }
.study-phonetic .remove-word { min-height: 44px; }
.restore-word { min-height: 44px; padding-inline: 12px; }
.list-study-word { font: 400 22px/1.25 var(--serif); }
.list-study-phonetic { color: var(--muted); font: 13px/1.6 var(--mono); }
.list-study-meaning { color: var(--text); font: 15px/1.7 var(--serif); }
.list-meaning-hint { color: var(--muted); font: 13px/1.7 var(--sans); }
.list-study-pagination { display: flex; flex: none; justify-content: space-between; align-items: center; gap: 12px; padding-top: 12px; margin-top: auto; }
.list-study-pagination > span { color: var(--muted); font: 12px/1.5 var(--mono); }
@media(max-width:600px) {
 .list-study-table th, .list-study-table td { padding-inline: 6px; }
 .list-study-table th:nth-child(1) { width: 27%; }
 .list-study-table th:nth-child(2) { width: 26%; }
 .list-study-table th:last-child { width: 56px; }
 .list-study-word { font-size: 18px; }
 .list-study-phonetic { font-size: 12px; }
 .list-study-meaning { font-size: 14px; }
 .list-study-pagination .secondary { padding-inline: 12px; }
}
.study-header, .study-progress-heading { flex: none; }
.study-header h1 { font-size: clamp(22px, 4dvh, 34px); }
.study-header > div { min-width: 0; }
.study-book { margin: 0 0 4px; overflow: hidden; color: var(--muted); font: 13px/1.6 var(--mono); text-overflow: ellipsis; white-space: nowrap; }
.study-back { flex-shrink: 0; min-height: 44px; padding-inline: 4px; color: var(--accent); }
.study-back .icon { transform: rotate(180deg); }
.study-progress-heading { display: flex; justify-content: space-between; gap: 12px; margin: clamp(8px, 2dvh, 20px) 0 6px; color: var(--muted); font: 13px/1.5 var(--mono); }
.study-progress { display: block; flex: none; width: 100%; height: 4px; appearance: none; overflow: hidden; border: 0; border-radius: 4px; background: var(--line-soft); color: var(--accent); }
.study-progress::-webkit-progress-bar { background: var(--line-soft); }
.study-progress::-webkit-progress-value { background: var(--accent); }
.study-progress::-moz-progress-bar { background: var(--accent); }
.study-reading, .study-actions { width: 100%; max-width: 660px; margin-inline: auto; text-align: center; }
.study-reading {
  flex: 1;
  min-height: 72px;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-gutter: stable both-edges;
  scroll-padding-block: 8px;
  padding: clamp(12px, 4dvh, 40px) 8px 12px;
}
.study-actions { padding: 12px 8px 0; border-top: 1px solid var(--line-soft); }
.complete-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.complete-actions .shortcut { flex-basis: 100%; margin-top: 0; }
/* 自动聚焦的标题供朗读定位，交互控件继续使用全局焦点样式。 */
.study-page :is(h2[data-study-focus], h3#study-meaning):focus-visible { outline: none; }
.study-word { width: fit-content; max-width: 100%; margin: 0 auto 8px; font: 400 clamp(2.1rem, min(6vw, 9dvh), 4.75rem)/1.15 var(--serif); letter-spacing: -.04em; overflow-wrap: anywhere; }
.study-phonetic { justify-content: center; flex-wrap: wrap; font-size: 15px; }
.study-phonetic span { overflow-wrap: anywhere; }
.recall-prompt{color:var(--muted);font:17px/1.6 var(--serif);margin:16px 0 0}.reveal-btn{min-width:min(220px,100%)}
.shortcut{display:block;font:12px/1.6 var(--mono);color:var(--muted);margin-top:8px}
.answer{padding-top:12px}
.answer h3{width:fit-content;max-width:100%;margin:0 auto 12px;font:500 22px/1.4 var(--sans);overflow-wrap:anywhere}
.example{padding:16px;text-align:left;border-left:2px solid var(--line);background:var(--surface-alt);border-radius:0 var(--control-radius) var(--control-radius) 0}
.example p{font:400 18px/1.55 var(--serif);margin:0;overflow-wrap:anywhere}.example small{display:block;margin-top:6px;font:15px/1.6 var(--serif);color:var(--text);overflow-wrap:anywhere}
.no-example{color:var(--muted);font:16px/1.6 var(--serif);margin:0;padding:16px;background:var(--surface-alt);border-radius:var(--control-radius)}
.ratings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.rating{min-height:60px;padding:8px;border:1px solid var(--accent);border-radius:var(--control-radius);background:var(--accent);color:var(--on-accent);font:500 15px/1.5 var(--sans)}.rating small{display:block;font:12px/1.5 var(--mono);margin-top:4px}
.rating-label { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 2px 4px; }
.rating-label kbd { min-width: 16px; padding: 1px 3px; border: 1px solid currentColor; border-radius: 4px; font: 12px/1.15 var(--mono); }
.rating.again{background:transparent;border-color:var(--line);color:var(--danger)}.rating.hard{background:transparent;border-color:var(--line);color:var(--text)}
.rating:hover{background:var(--accent-hover)}.rating.again:hover{background:var(--danger-soft)}.rating.hard:hover{background:var(--surface-alt)}
.complete-icon{display:grid;place-items:center;width:56px;height:56px;margin:0 auto 16px;border:1px solid var(--line);border-radius:var(--pill-radius);color:var(--accent)}.complete-icon .icon{width:28px;height:28px}
.session-complete h2{font-size:30px;line-height:1.5;margin-bottom:16px}
.complete-stats{display:flex;justify-content:center;flex-wrap:wrap;gap:clamp(12px,5vw,48px);margin:20px 0}.complete-stats strong{display:block;font:500 36px/1.3 var(--mono)}.complete-stats small{font:12px/1.5 var(--mono);color:var(--muted)}
.settings-dialog{width:min(480px,calc(100% - 32px))}.settings-body{padding:28px 32px 32px}.settings-body label{display:block;margin-bottom:12px;font-size:16px}
.settings-body select,.settings-body input[type="number"]{display:block;width:100%;min-height:48px;padding:10px 12px;background:var(--surface);border:1px solid var(--control-line);border-radius:var(--control-radius);font-size:16px}
.custom-goal-field { margin-top: 12px; }
.settings-body .custom-goal-field label { margin-bottom: 6px; font-size: 14px; }
.settings-body p{margin:20px 0 28px;color:var(--muted);font:15px/1.85 var(--serif)}.settings-body .primary{width:100%}
.settings-book { display: grid; gap: 3px; margin-bottom: 16px; color: var(--muted); font-size: 13px; }
.settings-book strong { color: var(--ink); font-size: 17px; font-weight: 500; overflow-wrap: anywhere; }
.settings-body .goal-estimate { margin: 10px 0 20px; color: var(--text); font: 13px/1.65 var(--sans); }
.settings-body .auto-pronounce-setting { display: flex; align-items: center; gap: 12px; min-height: 44px; margin-bottom: 0; cursor: pointer; }
.auto-pronounce-setting input { width: 18px; height: 18px; flex-shrink: 0; }
.settings-body .auto-pronounce-help { margin: 4px 0 24px; color: var(--muted); font: 13px/1.65 var(--sans); }
.rating-key-settings { min-width: 0; margin: 0 0 16px; padding: 8px 0 0; border: 0; border-top: 1px solid var(--line); }
.rating-key-settings legend { padding: 0 8px 0 0; font-weight: 500; }
.settings-body #rating-key-help { margin: 0 0 12px; font-size: 14px; }
.rating-key-field { display: grid; grid-template-columns: minmax(0, 1fr) minmax(80px, 104px); gap: 12px; align-items: center; margin: 0 0 8px; }
.rating-key-field > span { font-size: 14px; }
.rating-key-capture { min-height: 44px; padding: 6px 8px; }
.rating-key-value { font: 13px/1.5 var(--mono); }
.rating-key-capture[aria-pressed="true"] { color: var(--accent); background: var(--accent-soft); border-color: var(--accent); }
.settings-body .rating-key-error { margin: 8px 0; color: var(--danger); font-size: 14px; }
.rating-key-settings .text-button { min-height: 44px; padding-inline: 0; color: var(--accent); }
.settings-body .settings-note { margin: 12px 0 0; font-size: 13px; }
.cloud-body p { margin: 0 0 12px; overflow-wrap: anywhere; }
.cloud-body input:not([type="file"]) { width: 100%; min-height: 44px; margin-bottom: 12px; padding: 8px 12px; background: var(--surface); border: 1px solid var(--control-line); border-radius: var(--control-radius); }
.cloud-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.cloud-backup { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line-soft); }
#cloud-migration { margin-top: 16px; }
#cloud-backup-file { display: block; max-width: 100%; margin-bottom: 12px; }
.import-dialog{width:min(760px,calc(100% - 32px))}.import-body{padding:28px 32px 32px}
.field-label{display:block;margin:24px 0 12px;font-size:16px;font-weight:500}.field-label:first-of-type{margin-top:0}
.file-input{display:block;width:100%;min-height:76px;padding:16px;border:1px dashed var(--muted);border-radius:var(--control-radius);background:var(--surface-alt);color:var(--text);font-size:14px}
.file-input::file-selector-button{border:1px solid var(--line);border-radius:var(--control-radius);background:var(--surface);color:var(--text);font:500 14px/1.5 var(--sans);min-height:44px;padding:8px 12px;margin-right:12px;cursor:pointer}
.field-help{font:14px/1.8 var(--serif);color:var(--muted);margin:12px 0 20px}
.template-links{display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px;margin:20px 0;font:12px/1.5 var(--mono)}.template-links>span{color:var(--muted)}.template-links a{display:inline-flex;align-items:center;min-height:40px;color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.format-guide{padding-bottom:24px;border-bottom:1px solid var(--line-soft);margin-bottom:24px;color:var(--text);font:15px/1.8 var(--serif)}.format-guide summary{display:list-item;min-height:44px;cursor:pointer;color:var(--text);font:14px/1.8 var(--sans)}.format-guide p{margin:12px 0 0}
.import-name{display:block;width:100%;min-height:48px;padding:10px 14px;border:1px solid var(--line);border-radius:var(--control-radius);background:var(--surface);color:var(--ink);font-size:16px}
.import-preview{margin:24px 0 16px;min-height:96px;overflow:hidden;border:1px solid var(--line);border-radius:var(--control-radius)}.preview-placeholder{text-align:center;color:var(--muted);padding:32px 20px;margin:0;font:15px/1.8 var(--serif)}
.preview-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;background:var(--surface-alt)}.preview-summary strong{font-size:15px;font-weight:500}.preview-summary span{color:var(--muted);font:12px/1.5 var(--mono)}
.preview-table-wrap{overflow-x:auto}.preview-table{width:100%;table-layout:fixed;border-collapse:collapse;text-align:left;font:15px/1.8 var(--serif)}.preview-table caption{padding:16px 20px;text-align:left;color:var(--muted);font:12px/1.5 var(--mono)}
.preview-table th{color:var(--muted);background:var(--surface-alt);font:400 12px/1.5 var(--mono)}.preview-table th,.preview-table td{padding:12px 16px;border-top:1px solid var(--line-soft);vertical-align:top;white-space:pre-wrap;overflow-wrap:anywhere}
.preview-table th:first-child{width:27%}.preview-table th:last-child{width:29%}.preview-table td:first-child{font-size:19px}
.import-issues{padding:16px 20px;color:var(--warning);background:var(--warning-soft);font:14px/1.8 var(--serif)}.import-issues p{margin:0 0 8px}.import-issues ul{margin:0;padding-left:20px;overflow-wrap:anywhere}
.import-error{margin-bottom:24px;padding:16px 20px;border:1px solid var(--danger);border-radius:var(--control-radius);color:var(--danger);background:var(--danger-soft);font:15px/1.8 var(--serif);overflow-wrap:anywhere}.import-error[hidden]{display:none}
.switch-import{display:flex;align-items:center;gap:12px;min-height:48px;font-size:14px;color:var(--text)}.switch-import input{width:18px;height:18px;flex-shrink:0}
.import-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.import-privacy{text-align:right;font-size:12px;margin-bottom:0}
.storage-warning{padding:16px 20px;border:1px solid var(--line);border-radius:var(--control-radius);background:var(--warning-soft);color:var(--warning);font:15px/1.8 var(--serif);margin-bottom:24px}
.toast{position:fixed;left:calc(50% + var(--sidebar-width)/2);bottom:32px;z-index:50;max-width:min(600px,90vw);padding:14px 24px;background:var(--ink);color:var(--bg);border-radius:var(--control-radius);opacity:0;transform:translate(-50%,8px);transition:opacity var(--normal),transform var(--normal);pointer-events:none;font:14px/1.75 var(--sans)}.toast.visible{opacity:1;transform:translate(-50%,0)}
/* 留白随屏幕收拢，阅读与操作字号不缩成脚注。 */
@media(min-width:1600px){.hero{min-height:400px}.hero-art{width:290px;height:310px;right:24px}.hero-content{max-width:calc(100% - 230px)}}
@media(max-width:1350px){
 .hero-grid{grid-template-columns:minmax(0,1fr) 280px}.hero{padding:32px}.hero-content{max-width:calc(100% - 140px)}.hero-art{width:200px;height:230px;right:4px}.hero h2{font-size:36px}.hero-action{gap:12px}.stat-icon{display:none}.books-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1180px){
 .topbar{padding:0 32px}main{padding:40px 32px 0}.footer{padding:40px 32px}.hero-grid{grid-template-columns:1fr}.hero{min-height:332px}.hero-content{max-width:calc(100% - 210px)}.hero-art{width:260px;height:270px;right:24px;bottom:20px}.hero h2{font-size:40px}
 .daily-word{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 24px;padding:24px}.daily-word .card-top{grid-column:1/-1}.daily-word .word-heading{margin:8px 0 0;font-size:32px}.daily-word .phonetic-row{justify-content:flex-end}.daily-meaning{margin:0;grid-column:1/-1;font-size:15px}.daily-quote{display:none}
 .bottom-grid,.stat-detail{grid-template-columns:1fr;gap:48px}.header-date,.header-divider{display:none}.word-row{grid-template-columns:minmax(110px,1fr) minmax(130px,1.2fr) 96px}.word-status{display:none}.book-panel{min-height:206px}
}
@media(max-width:1024px){
 :root{--sidebar-width:80px}.sidebar{padding:28px 12px}.brand{padding:0;justify-content:center}.brand>span:last-child,.nav-caption,.sidebar-bottom,nav a>span:not(:first-child){display:none}.sidebar nav{margin-top:48px;gap:16px}nav a{padding:0;justify-content:center;min-height:52px}.mobile-settings{display:inline-flex!important}.topbar-actions{gap:16px}.page-heading{gap:16px}.streak-pill{font-size:12px}
}
@media(max-width:760px){
 .topbar{padding:0 24px;gap:16px;height:76px}.topbar-actions{gap:8px}.search-box input{width:120px}.search-box kbd{display:none}main{padding:32px 24px 0}.footer{padding:32px 24px}h1{font-size:28px}
 .page-heading{align-items:flex-start;margin-bottom:32px}.page-heading p{font-size:15px}.streak-pill{margin-top:28px;padding:8px 10px}.streak-label{display:none}
 .hero{padding:28px;min-height:344px}.hero-content{max-width:calc(100% - 140px)}.hero-art{width:195px;height:230px;right:4px;bottom:12px}.hero h2{font-size:32px}.hero p{font-size:15px}.hero-action{align-items:flex-start;flex-direction:column}
 .stats-strip{margin:40px 0 64px}.stat-item{padding:0 16px}.stat-value{font-size:28px}.stat-value small{font-size:12px;margin-left:4px}.stat-label{font-size:12px}.section-title{font-size:22px;margin-bottom:20px}
 .books-grid{grid-template-columns:1fr}.library-card{display:grid;grid-template-columns:100px minmax(0,1fr);gap:0 24px}.library-card .book-cover{grid-column:1;grid-row:1/5;margin:0;width:100px;height:140px}.library-card .book-cover strong{font-size:22px}
 .library-card h2,.library-card p,.library-card .progress-meta,.library-card .progress-track{grid-column:2}.library-card p{min-height:0;font-size:14px;margin-bottom:16px}.library-card .progress-track{margin-bottom:0}.library-actions{grid-column:1/-1;margin-top:24px}.library-actions button{font-size:14px}
 .import-banner{align-items:flex-start}.import-banner h2{font-size:22px}.import-banner p{font-size:15px}.footer>span:last-child{display:none}
 .word-row{gap:16px;padding:20px;grid-template-columns:minmax(90px,1fr) minmax(100px,1.1fr) 96px}.list-search input{width:175px}.gentle-tip{font-size:13px;text-align:center}
}
@media(max-width:600px){
 :root{--sidebar-width:0px}.sidebar{inset:auto 0 0;width:100%;height:calc(72px + env(safe-area-inset-bottom));padding:0 8px env(safe-area-inset-bottom);border-right:0;border-top:1px solid var(--line);overflow:visible}
 .sidebar .brand{display:none}.sidebar nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;width:100%;height:71px;margin:0}
 .sidebar nav a{flex-direction:column;gap:5px;min-height:64px;padding:8px 2px;border-radius:0;font:12px/1.5 var(--sans)}.sidebar nav a>span:nth-child(2){display:block}.sidebar nav a.active{background:none;color:var(--accent)}.sidebar nav .icon{width:21px;height:21px}
 .workspace{margin:0;padding-bottom:calc(72px + env(safe-area-inset-bottom))}.topbar{height:72px;padding:0 20px;gap:12px}.breadcrumb{gap:8px;font-size:12px}.search-box{gap:0}.search-box .icon{display:none}.search-box input{width:84px;font-size:16px}.search-box input::placeholder{font-size:12px}.topbar-actions{gap:4px}
 main{padding:32px 20px 0;min-height:calc(100dvh - 224px)}h1{font-size:27px}.eyebrow{font-size:12px;margin-bottom:12px;letter-spacing:0}.page-heading{gap:10px}.page-heading p{font-size:14px;margin-top:12px}.streak-pill{gap:5px;margin-top:30px;padding:6px 8px}.streak-pill .icon{display:none}.streak-pill strong{font-size:14px}
 .hero-grid{gap:20px}.hero{min-height:356px;padding:24px;align-items:flex-start}.hero-content{max-width:100%}.hero-tag{margin-bottom:24px;font-size:12px}.hero h2{font-size:32px;line-height:1.4;margin-bottom:20px}.hero p{font-size:15px;max-width:17em;margin-bottom:24px}.hero-art{width:136px;height:164px;right:0;bottom:12px}
 .hero-action{gap:12px}.hero-action .primary{padding:10px 16px;gap:12px}.hero-action small{font-size:12px}.daily-word{display:none}
 .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:0;margin:32px 0 64px}.stat-item{padding:24px 16px;gap:12px;border-right:1px solid var(--line)}.stat-item:first-child{padding-left:16px}.stat-item:nth-child(2){border-right:0}.stat-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.stat-item:last-child{padding-right:16px}.stat-label{font-size:12px}.stat-value{font-size:30px}.stat-value small{font-size:12px}
 .bottom-grid,.stat-detail{gap:40px}.section-title{font-size:21px;gap:8px}.section-title .text-button{font-size:12px}.panel{padding:24px}
 .book-panel{gap:20px;padding:24px 20px}.book-panel .book-cover{width:76px;min-width:76px;height:120px;padding:12px 8px}.book-panel .book-cover strong{font-size:18px}.book-cover small{font-size:8px}.book-cover>span{font-size:10px}
 .book-info h3{font-size:18px}.book-info>p{font-size:12px;margin-bottom:18px}.book-info .progress-meta,.book-bottom{font-size:12px}.book-bottom{gap:0}.book-bottom .text-button{min-height:36px;font-size:12px}
 .chart-legend{font-size:12px}.week-chart{gap:8px;height:128px}.day-bar>span{font-size:12px}.bar{width:18px}.week-summary{font-size:12px}.week-summary strong{font-size:22px}
 .gentle-tip{margin-top:32px;align-items:flex-start}.gentle-tip .icon{margin-top:4px}.footer{font-size:12px;padding:32px 20px}
 .import-banner{flex-direction:column;gap:24px;margin-bottom:32px;padding:24px 0}.import-banner h2{font-size:22px}.import-banner p{font-size:15px}
 .library-card{padding:24px 20px;grid-template-columns:76px minmax(0,1fr);gap:0 20px}.library-card .book-cover{width:76px;min-width:76px;height:120px;padding:12px 8px}.library-card .book-cover strong{font-size:18px}.library-card h2{font-size:18px;margin-bottom:8px}.library-card p{font-size:13px;margin-bottom:16px}.library-card .progress-meta{font-size:12px}.library-actions{margin-top:24px}.library-actions button{padding:10px 12px;font-size:13px}
 .list-toolbar{gap:16px}.filter-tabs{gap:4px}.filter-tabs button{padding:10px 14px}.list-search{width:100%}.list-search input{width:100%;font-size:16px}
 .word-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr) 88px;gap:10px;padding:18px 14px}.word-row strong{font-size:21px}.word-row small{font-size:12px}.definition{font-size:14px;line-height:1.75}.row-actions{gap:0}
 .word-pagination{gap:12px;font-size:12px}.word-pagination .secondary{padding:10px 14px;font-size:13px}.info-note{font-size:13px}.empty{padding:48px 24px}.empty h2{font-size:22px}.empty p{font-size:15px}
 .stat-detail h2{font-size:22px}.review-explainer{font-size:15px;padding:24px;margin-top:40px}.review-explainer strong{font-size:18px}
 dialog{max-height:92dvh}.dialog-top{padding:20px;gap:8px}.dialog-top h2{font-size:17px}
 .study-phonetic{font-size:13px}.study-header{gap:8px}.study-reading{scrollbar-gutter:auto}
 .recall-prompt{font-size:16px}.answer h3{font-size:19px}.example{padding:12px}.example p{font-size:17px}
 .ratings{gap:8px}.rating{font-size:14px;padding:8px 4px}.session-complete h2{font-size:24px}.complete-stats strong{font-size:30px}
 .settings-body,.import-body{padding:24px 20px}.settings-body p{font-size:14px}.file-input{font-size:12px;padding:12px}.file-input::file-selector-button{font-size:13px;margin-right:8px}.field-label{font-size:15px}.field-help{font-size:13px}.import-name{font-size:16px}.import-name::placeholder{font-size:13px}
 .template-links{gap:4px 16px;font-size:12px}.format-guide{font-size:14px}.preview-summary{flex-wrap:wrap;gap:6px;padding:16px}.preview-summary strong{font-size:14px}.preview-summary span{font-size:12px}.preview-table{font-size:13px}.preview-table caption{padding:14px 12px;font-size:12px}.preview-table th,.preview-table td{padding:12px 8px}.preview-table th{font-size:12px}.preview-table td:first-child{font-size:17px}
 .import-issues,.import-error{font-size:13px;padding:16px}.switch-import{font-size:13px;gap:10px}.import-actions .primary{flex:1}.import-actions .secondary{min-width:76px}.import-privacy{font-size:12px}.toast{left:50%;bottom:calc(96px + env(safe-area-inset-bottom));font-size:13px;width:max-content}
}
@media (max-height: 520px) {
  .study-actions .shortcut, .session-complete .complete-icon { display: none; }
  .study-reading { padding-block: 8px; }
}
@media(max-width:360px){h1{font-size:25px}.streak-pill{padding:6px}.hero h2{font-size:29px}.hero-art{width:116px;right:-2px}.hero .primary{font-size:13px;padding:10px 12px}.book-panel{gap:14px;padding:20px 16px}.book-info h3{font-size:16px}.stat-item{padding:20px 12px}.stat-item:first-child{padding-left:12px}.stat-item:last-child{padding-right:12px}.breadcrumb{gap:6px;font-size:12px}.search-box input{width:75px}.topbar{padding:0 16px;gap:6px}.topbar-actions{gap:0}}
@media(min-width:601px) and (max-height:700px){.sidebar-note,.profile{display:none}.sidebar-bottom{padding-top:24px}.nav-caption{margin-top:32px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.library-card:hover{transform:none}}

/* 交互边界比装饰分隔线更清楚。 */
.secondary,.list-search,.settings-body select,.import-name,.file-input::file-selector-button{border-color:var(--control-line)}
.bar{border:1px solid var(--text);border-bottom:0}

@media(max-width:760px){.streak-label{display:block;position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}}