/* ============ DailyGerman · 日常德语，一站就够了 ============ */
:root{
  --paper:#F5F0E4; --panel:#FDFBF4; --panel2:#EDE6D3; --ink:#221D14; --ink2:#453D2E;
  --muted:#847A66; --line:#DCD2BA; --line2:#CBBFA2;
  --red:#C2481F; --red-soft:#E8D5C9; --blue:#2B5AA5; --blue-soft:#D3DCEA;
  --yellow:#D99C1E; --yellow-soft:#EFE3C2; --green:#4A7C59; --green-soft:#D5E0D5;
  --font-ui:'Hanken Grotesk','Segoe UI','Microsoft YaHei',system-ui,sans-serif;
  --font-de:'Fraunces',Georgia,'Times New Roman',serif;
  --shadow:0 2px 10px rgba(60,48,20,.08), 0 12px 34px rgba(60,48,20,.07);
  --r:14px;
}
:root{--line2:#CBBFA2;}
*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px}
body{
  font-family:var(--font-ui); color:var(--ink); background:var(--paper);
  -webkit-font-smoothing:antialiased; line-height:1.6;
}
/* paper grain */
body::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:999; opacity:.35;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.035 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
#app{display:flex; min-height:100vh}

/* ============ Sidebar ============ */
#sidebar{
  width:236px; flex:0 0 236px; background:var(--ink); color:#EFE9DB;
  display:flex; flex-direction:column; position:sticky; top:0; height:100vh; padding:26px 0 18px;
}
.logo{display:flex; align-items:center; gap:12px; padding:0 22px 22px; text-decoration:none; color:inherit; border-bottom:1px solid rgba(239,233,219,.14); }
.logo-mark{position:relative; width:38px; height:38px; flex:0 0 38px}
.lm-c{position:absolute; inset:2px; border-radius:50%; background:var(--red)}
.logo-text{font-family:var(--font-de); font-weight:600; font-size:1.45rem; line-height:1.1; letter-spacing:.01em}
.logo-text span{display:block; font-family:var(--font-ui); font-size:.68rem; font-weight:500; letter-spacing:.28em; color:#B4AA93; margin-top:4px}
#nav{display:flex; flex-direction:column; padding:18px 12px; gap:2px; flex:1}
#nav a{
  display:flex; align-items:center; gap:11px; padding:10px 12px; border-radius:9px;
  color:#D8D0BC; text-decoration:none; font-size:.94rem; font-weight:600; position:relative;
  transition:background .15s,color .15s;
}
#nav a em{font-style:normal; font-family:var(--font-de); font-weight:400; font-size:.78rem; color:#8C8371; margin-left:auto}
#nav a:hover{background:rgba(239,233,219,.08); color:#fff}
#nav a.active{background:var(--red); color:#FFF6EC}
#nav a.active em{color:#F3CBB6}
.nb{width:11px; height:11px; flex:0 0 11px; display:inline-block; position:relative}
.nb-circle{border-radius:50%; background:currentColor}
.nb-square{background:currentColor}
.nb-tri{width:0;height:0;background:none;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:11px solid currentColor}
.nb-half{border-radius:11px 11px 0 0; background:currentColor; height:6px; margin-top:4px}
.nb-lines{background:linear-gradient(to bottom,currentColor 0 2px,transparent 2px 4.5px,currentColor 4.5px 6.5px,transparent 6.5px 9px,currentColor 9px 11px)}
.nb-dot{border-radius:50%; border:2.5px solid currentColor; background:none; width:8px;height:8px}
.nb-ring{border-radius:50%; border:2.5px solid currentColor; background:none}
.nb-wave{background:linear-gradient(to right,currentColor 0 2px,transparent 2px 5px,currentColor 5px 7px,transparent 7px 10px,currentColor 10px 11px)}
.nb-page{background:currentColor; clip-path:polygon(0 0, 62% 0, 100% 38%, 100% 100%, 0 100%)}
.nb-star{background:currentColor; clip-path:polygon(50% 0,61% 34%,98% 34%,68% 55%,79% 91%,50% 69%,21% 91%,32% 55%,2% 34%,39% 34%)}
.due-badge{margin-left:6px; background:var(--yellow); color:#221D14; font-size:.68rem; font-weight:800; border-radius:999px; padding:1px 7px; font-style:normal}
.side-foot{padding:14px 22px 0; border-top:1px solid rgba(239,233,219,.14)}
.github-link{display:flex; align-items:center; gap:9px; margin-bottom:12px; padding:9px 10px; border:1px solid rgba(239,233,219,.18); border-radius:9px; color:#D8D0BC; text-decoration:none; font-size:.73rem; line-height:1.35; transition:background .15s,color .15s,border-color .15s}
.github-link:hover,.github-link:focus-visible{background:rgba(239,233,219,.08); border-color:rgba(239,233,219,.36); color:#fff}
.github-link:focus-visible{outline:2px solid var(--yellow); outline-offset:2px}
.github-link b{display:block; color:var(--yellow); font-size:.76rem}
.github-icon{width:19px; height:19px; flex:0 0 19px}
.settings-link{color:#B4AA93; text-decoration:none; font-size:.85rem; font-weight:600}
.settings-link:hover{color:#fff}
.gender-legend{display:flex; gap:10px; margin-top:12px; font-size:.68rem; color:#8C8371}
.gender-legend b{display:inline-block; width:8px; height:8px; border-radius:2px; margin-right:4px}
.g-der{background:var(--blue)} .g-die{background:var(--red)} .g-das{background:var(--green)}

/* ============ 手机端底部导航 + “更多”面板（桌面端隐藏） ============ */
#tabbar,#more-sheet{display:none}

/* ============ Main ============ */
#main{flex:1; min-width:0; padding:44px 52px 90px; max-width:940px; margin:0 auto}
.view{animation:fadeUp .4s ease both}
@keyframes fadeUp{from{opacity:0; transform:translateY(10px)} to{opacity:1; transform:none}}
.stagger>*{animation:fadeUp .45s ease both}
.stagger>*:nth-child(2){animation-delay:.05s}.stagger>*:nth-child(3){animation-delay:.1s}
.stagger>*:nth-child(4){animation-delay:.15s}.stagger>*:nth-child(5){animation-delay:.2s}
.stagger>*:nth-child(6){animation-delay:.25s}.stagger>*:nth-child(7){animation-delay:.3s}

.kicker{font-size:.72rem; font-weight:800; letter-spacing:.3em; text-transform:uppercase; color:var(--red); margin-bottom:10px}
h1.page{font-family:var(--font-de); font-weight:600; font-size:2.5rem; line-height:1.12; margin-bottom:6px}
h1.page .de{font-style:italic; color:var(--red)}
.page-sub{color:var(--muted); font-size:.97rem; max-width:60ch; margin-bottom:34px}

/* ---- 收藏星标（课程页标题 / 语法手风琴头） ---- */
.fav-btn{font-family:var(--font-ui); font-size:1.4rem; line-height:1; border:none; background:none; color:var(--line2); cursor:pointer; vertical-align:middle; margin-left:12px; padding:0 2px; transition:color .15s, transform .15s; display:inline-block}
.fav-btn:hover{color:var(--yellow); transform:scale(1.15)}
.fav-btn.active{color:var(--yellow)}
.fav-btn:focus-visible{outline:2px solid var(--blue); outline-offset:2px}
.acc-head .fav-btn{font-size:1.15rem; margin-left:0}

/* ---- 收藏 chip（课程总览页里的语法收藏） ---- */
.fav-chip-row{display:flex; flex-wrap:wrap; gap:10px}
.fav-chip{display:inline-block; text-decoration:none; font-family:var(--font-ui); border:1.5px solid var(--line2); background:var(--panel); color:var(--ink); border-radius:999px; padding:7px 16px; font-size:.85rem; font-weight:600; transition:all .15s}
.fav-chip:hover{border-color:var(--yellow); background:var(--yellow-soft)}
.favorites-empty{padding:30px}
.favorites-empty p{color:var(--muted); margin:8px 0 18px}
.favorites-actions{display:flex; flex-wrap:wrap; gap:10px}
.favorites-list{overflow:hidden; margin-bottom:28px}
.favorite-entry{display:flex; align-items:center; gap:12px; border-bottom:1px solid var(--line)}
.favorite-entry:last-child{border-bottom:none}
.favorite-main{display:flex; align-items:center; gap:14px; flex:1; min-width:0; padding:17px 20px; color:inherit; text-decoration:none}
.favorite-main:hover{background:var(--panel2)}
.favorite-main small{display:block; margin-top:3px; color:var(--muted); font-family:var(--font-de); font-style:italic}
.favorite-star{color:var(--yellow); font-size:1.2rem}
.favorite-remove{margin-right:16px; border:none; background:none; color:var(--muted); cursor:pointer; white-space:nowrap; font:600 .78rem var(--font-ui)}
.favorite-remove:hover,.favorite-remove:focus-visible{color:var(--red); text-decoration:underline}

.card{background:var(--panel); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow)}

/* ---- home ---- */
.hero-row{display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:34px}
.start-card{padding:30px 32px 32px; position:relative; overflow:hidden; margin-bottom:18px; border-top:4px solid var(--red)}
.start-card .shape{position:absolute; right:-50px; top:-50px; width:200px; height:200px; border-radius:50%; opacity:.14}
.start-card h2{font-family:var(--font-de); font-size:2.1rem; font-weight:600; line-height:1.12; margin:8px 0 6px; position:relative}
.start-card .kicker{position:relative}
.start-card .where{color:var(--muted); font-size:.95rem; margin-bottom:22px; position:relative}
.start-actions{display:flex; align-items:center; gap:12px; flex-wrap:wrap; position:relative}
.btn.big{padding:15px 32px; font-size:1.05rem}
.wort-card{padding:22px 24px; background:var(--ink); color:#EFE9DB; border:none}
.wort-card .kicker{color:var(--yellow)}
.wort-card .w{font-family:var(--font-de); font-size:1.85rem; font-weight:550; line-height:1.15; margin:2px 0 2px}
.wort-card .m{color:#B4AA93; font-size:.9rem}
.wort-card .ex{font-family:var(--font-de); font-style:italic; font-size:.95rem; margin-top:10px; color:#D8D0BC}
.wort-card .exzh{font-size:.8rem; color:#8C8371}

h2.sec{font-family:var(--font-de); font-size:1.5rem; font-weight:600; margin:8px 0 16px; display:flex; align-items:baseline; gap:12px}
h2.sec small{font-family:var(--font-ui); font-size:.8rem; color:var(--muted); font-weight:500}

.unit-grid{display:grid; grid-template-columns:1fr 1fr; gap:16px}
.unit-card{padding:22px 24px; text-decoration:none; color:inherit; display:block; position:relative; overflow:hidden; transition:transform .18s ease, box-shadow .18s ease}
.unit-card:hover{transform:translateY(-3px); box-shadow:0 6px 16px rgba(60,48,20,.12), 0 18px 44px rgba(60,48,20,.1)}
.unit-num{position:absolute; right:14px; top:2px; font-family:var(--font-de); font-size:4.6rem; font-weight:300; color:transparent; -webkit-text-stroke:1.3px var(--line2); line-height:1}
.unit-shape{width:30px; height:30px; margin-bottom:12px; position:relative}
.unit-shape.circle{border-radius:50%}
.unit-shape.tri{width:0; height:0; background:none!important; border-left:16px solid transparent; border-right:16px solid transparent; border-bottom:28px solid currentColor}
.unit-shape.half{height:15px; border-radius:30px 30px 0 0; margin-top:15px}
.unit-card h3{font-family:var(--font-de); font-size:1.32rem; font-weight:600; line-height:1.2}
.unit-card .zh{font-size:.95rem; font-weight:700; margin:2px 0 6px}
.unit-card p{color:var(--muted); font-size:.85rem; line-height:1.5; max-width:38ch}
.unit-meta{margin-top:14px; display:flex; align-items:center; gap:10px; font-size:.78rem; color:var(--muted)}
.progress-pill{flex:1; max-width:130px; height:5px; border-radius:3px; background:var(--panel2); overflow:hidden}
.progress-pill i{display:block; height:100%; border-radius:3px; transition:width .5s ease}

/* ---- home: 随便看看 ---- */
.explore-grid{display:flex; flex-wrap:wrap; gap:10px}
.explore-chip{display:inline-flex; align-items:center; gap:10px; text-decoration:none; color:var(--ink); background:var(--panel); border:1.5px solid var(--line2); border-radius:999px; padding:11px 18px 11px 16px; font-size:.92rem; font-weight:700; min-height:44px; transition:border-color .15s, background .15s, transform .15s}
.explore-chip .nb{color:var(--red)}
.explore-chip em{font-style:italic; font-family:var(--font-de); font-weight:400; color:var(--muted); font-size:.88rem}
.explore-chip:hover{border-color:var(--ink); background:var(--panel2); transform:translateY(-1px)}

/* unit accent colors */
.uc-blue{color:var(--blue)} .uc-red{color:var(--red)} .uc-yellow{color:var(--yellow)} .uc-green{color:var(--green)}
.bgc-blue{background:var(--blue)} .bgc-red{background:var(--red)} .bgc-yellow{background:var(--yellow)} .bgc-green{background:var(--green)}

/* ---- home: 课程地图总览卡 ---- */
.map-card{display:block; padding:26px 28px; text-decoration:none; color:inherit; margin-bottom:34px; transition:transform .18s ease, box-shadow .18s ease}
.map-card:hover{transform:translateY(-3px); box-shadow:0 6px 16px rgba(60,48,20,.12), 0 18px 44px rgba(60,48,20,.1)}
.hero-row .map-card{margin-bottom:0; padding:22px 24px}
.map-phase{font-family:var(--font-de); font-size:1.5rem; font-weight:600; line-height:1.2; margin-top:2px}
.map-level{display:inline-block; font-size:.72rem; font-weight:800; letter-spacing:.05em; color:var(--ink2); background:var(--panel2); border:1px solid var(--line2); padding:2px 10px; border-radius:999px; margin:8px 0 14px}
.map-card .progress-pill{max-width:none; height:8px; margin-bottom:14px}
.map-cta{font-size:.85rem; font-weight:700; color:var(--red)}

/* ---- units: 阶段折叠区块 ---- */
.phase-block{background:var(--panel); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow); margin-bottom:16px; overflow:hidden}
.phase-head{width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:18px 24px; border:none; background:var(--panel); color:var(--ink); font-family:var(--font-ui); cursor:pointer; flex-wrap:wrap; transition:background .15s}
.phase-head:hover{background:var(--panel2)}
.phase-head-main{display:flex; align-items:center; gap:12px; flex-wrap:wrap}
.phase-num{font-family:var(--font-de); font-weight:600; font-size:1.15rem; color:var(--red)}
.phase-zh{font-family:var(--font-de); font-weight:600; font-size:1.15rem}
.phase-level{font-size:.72rem; font-weight:800; letter-spacing:.05em; color:var(--ink2); background:var(--panel2); border:1px solid var(--line2); padding:2px 10px; border-radius:999px}
.phase-head-meta{display:flex; align-items:center; gap:12px}
.phase-bar{flex:0 0 110px; max-width:110px; height:5px}
.phase-count{font-size:.8rem; color:var(--muted); white-space:nowrap}
.phase-arrow{display:inline-block; color:var(--muted); transition:transform .25s}
.phase-block.open .phase-arrow{transform:rotate(180deg)}
.phase-body{display:none; padding:22px 24px 26px; border-top:1px solid var(--line)}
.phase-block.open .phase-body{display:block}

/* ---- unit detail / lesson list ---- */
.lesson-row{display:flex; align-items:center; gap:16px; padding:18px 22px; text-decoration:none; color:inherit; border-bottom:1px solid var(--line); transition:background .15s}
.lesson-row:last-child{border-bottom:none}
.lesson-row:hover{background:var(--panel2)}
.lesson-row .idx{font-family:var(--font-de); font-size:1.15rem; font-weight:600; width:34px; height:34px; border-radius:50%; display:flex; align-items:center; justify-content:center; flex:0 0 34px; border:1.5px solid var(--line2)}
.lesson-row.done .idx{background:var(--green); border-color:var(--green); color:#fff}
.lesson-row h4{font-size:1rem; font-weight:700}
.lesson-row .de{font-family:var(--font-de); font-style:italic; color:var(--muted); font-weight:400; font-size:.9rem}
.lesson-row .score{margin-left:auto; font-size:.78rem; color:var(--muted); white-space:nowrap}

/* ---- unit detail: Kann ich das? 自评卡 ---- */
.kann-card{margin-top:18px; padding:24px 28px}
.kann-head{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:14px}
.kann-head h3{font-family:var(--font-de); font-size:1.2rem; font-weight:600; display:flex; align-items:baseline; gap:10px}
.kann-head h3 .zh{font-family:var(--font-ui); font-size:.8rem; font-weight:600; color:var(--muted)}
.kann-done-badge{display:none; flex:0 0 auto; font-size:.76rem; font-weight:800; color:#fff; background:var(--green); padding:4px 12px; border-radius:999px; white-space:nowrap}
.kann-done-badge.show{display:inline-block}
.kann-list{list-style:none}
.kann-item{border-top:1px solid var(--line); padding:12px 0}
.kann-item:first-child{border-top:none; padding-top:0}
.kann-item label{display:flex; align-items:flex-start; gap:12px; cursor:pointer}
.kann-item input[type="checkbox"]{margin-top:4px; width:18px; height:18px; flex:0 0 18px; accent-color:var(--green); cursor:pointer}
.kann-text{display:flex; flex-direction:column; gap:2px; min-width:0; overflow-wrap:anywhere}
.kann-text .de{font-family:var(--font-de); font-size:1rem; font-weight:550}
.kann-text .zh{font-size:.82rem; color:var(--muted)}

/* ---- lesson view ---- */
.crumb{display:flex; align-items:center; flex-wrap:wrap; gap:0 5px; font-size:.82rem; color:var(--muted); margin-bottom:18px}
.crumb .fav-btn{margin-left:auto; font-size:1.35rem}
.crumb a{color:var(--muted)}
.lesson-sec{margin-bottom:34px}
.lesson-sec h3{font-family:var(--font-de); font-size:1.35rem; font-weight:600; margin-bottom:4px; display:flex; align-items:center; gap:10px}
.lesson-sec h3::before{content:""; width:10px; height:10px; background:var(--red); flex:0 0 10px}
.lesson-sec .sec-sub{color:var(--muted); font-size:.85rem; margin-bottom:14px}
.intro{font-size:.97rem; color:var(--ink2); background:var(--yellow-soft); border-left:4px solid var(--yellow); padding:14px 18px; border-radius:0 10px 10px 0; margin-bottom:30px}

.vocab-table{width:100%; border-collapse:collapse; background:var(--panel); border:1px solid var(--line); border-radius:var(--r); overflow:hidden; box-shadow:var(--shadow); display:block}
.vocab-table table{width:100%; border-collapse:collapse}
.vocab-table tr{border-bottom:1px solid var(--line)}
.vocab-table tr:last-child{border-bottom:none}
.vocab-table td{padding:11px 14px; vertical-align:top}
.vocab-table td.w{font-family:var(--font-de); font-size:1.08rem; font-weight:550; white-space:nowrap}
.vocab-table td.m{font-size:.9rem}
.vocab-table td.m .en{color:var(--muted); font-size:.8rem; margin-left:6px}
.vocab-table td.m .note{display:block; color:var(--muted); font-size:.78rem; margin-top:2px}
.vocab-table td.ex{font-family:var(--font-de); font-style:italic; font-size:.9rem; color:var(--ink2)}
.vocab-table td.ex .zh{display:block; font-family:var(--font-ui); font-style:normal; font-size:.76rem; color:var(--muted)}
.vocab-table td.a{white-space:nowrap; text-align:right}
.art{font-weight:700; padding:1px 7px; border-radius:6px; font-size:.85rem; margin-right:6px}
.art-der{color:var(--blue); background:var(--blue-soft)}
.art-die{color:var(--red); background:var(--red-soft)}
.art-das{color:var(--green); background:var(--green-soft)}
.pl{color:var(--muted); font-weight:400; font-size:.8rem; margin-left:5px}

.tts-btn{border:1.5px solid var(--line2); background:var(--panel); color:var(--ink2); width:30px; height:30px; border-radius:50%; cursor:pointer; font-size:.8rem; line-height:1; transition:all .15s; vertical-align:middle}
.tts-btn:hover{background:var(--ink); color:#fff; border-color:var(--ink)}
.tts-btn.slow{font-size:.75rem}
.tts-btn:active{transform:scale(.9)}

.dialogue{padding:6px 0}
.dialogue .scene{font-size:.85rem; color:var(--muted); padding:12px 22px; border-bottom:1px dashed var(--line)}
.dline{display:flex; gap:14px; padding:13px 22px; align-items:flex-start}
.dline:nth-child(even){background:rgba(237,230,211,.5)}
.dline .who{font-weight:800; font-size:.72rem; letter-spacing:.04em; text-transform:uppercase; padding-top:6px; width:92px; flex:0 0 92px; overflow-wrap:anywhere; line-height:1.3}
.dline.a .who{color:var(--blue)} .dline.b .who{color:var(--red)}
.dline .txt .de{font-family:var(--font-de); font-size:1.1rem; font-weight:500}
.dline .txt .zh{font-size:.82rem; color:var(--muted)}
.dline .tts-btn{margin-left:auto; flex:0 0 30px}

.grammar-box{padding:22px 26px; font-size:.95rem}
.grammar-box h4{font-size:1.02rem; margin:14px 0 8px}
.grammar-box h4:first-child{margin-top:0}
.grammar-box p{margin-bottom:10px; color:var(--ink2)}
.grammar-box .de{font-family:var(--font-de); font-weight:550}
.grammar-box table{border-collapse:collapse; margin:10px 0 14px; font-size:.9rem; width:100%; max-width:560px}
/* 语法表格外套一层横向滚动容器（js/ui.js wrapTables），窄屏上表格再宽也不会把整页撑开 */
.table-scroll{overflow-x:auto; margin:10px 0 14px; -webkit-overflow-scrolling:touch}
.table-scroll>table{margin:0}
.grammar-box th{background:var(--ink); color:#EFE9DB; font-weight:600; text-align:left; padding:7px 12px; font-size:.82rem}
.grammar-box td{border:1px solid var(--line); padding:7px 12px; background:var(--panel)}
.grammar-box td.hl{font-family:var(--font-de); font-weight:600}
.grammar-box ul{padding-left:20px; margin-bottom:10px; color:var(--ink2)}
.grammar-box li{margin-bottom:4px}
mark{background:var(--yellow-soft); color:inherit; padding:0 3px; border-radius:3px}

.tip-box{background:var(--blue-soft); border-left:4px solid var(--blue); padding:14px 18px; border-radius:0 10px 10px 0; font-size:.9rem; color:var(--ink2)}
.tip-box b.t{color:var(--blue)}

.task-box{background:var(--ink); color:#EFE9DB; border-radius:var(--r); padding:22px 26px; margin-top:8px}
.task-box .kicker{color:var(--yellow)}
.task-box h4{font-family:var(--font-de); font-size:1.2rem; margin-bottom:6px}
.task-box p{font-size:.92rem; color:#D8D0BC}

/* ---- exercises ---- */
.ex-launch{display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:14px; padding:22px 26px}
.btn{display:inline-block; border:none; cursor:pointer; font-family:var(--font-ui); font-weight:700; font-size:.95rem; padding:12px 26px; border-radius:999px; background:var(--red); color:#FFF6EC; transition:transform .15s, box-shadow .15s; text-decoration:none}
.btn:hover{transform:translateY(-1px); box-shadow:0 6px 16px rgba(194,72,31,.35)}
.btn:active{transform:none}
.btn.ghost{background:transparent; color:var(--ink); border:1.5px solid var(--line2)}
.btn.ghost:hover{box-shadow:none; background:var(--panel2)}
.btn.small{padding:8px 18px; font-size:.85rem}
.btn:disabled{opacity:.45; cursor:not-allowed; transform:none; box-shadow:none}

.ex-wrap{padding:28px 30px}
.ex-progress{display:flex; gap:6px; margin-bottom:26px}
.ex-progress i{flex:1; height:5px; border-radius:3px; background:var(--panel2)}
.ex-progress i.done{background:var(--green)} .ex-progress i.wrong{background:var(--red)}
.ex-progress i.cur{background:var(--yellow)}
.ex-q{font-size:1.05rem; font-weight:600; margin-bottom:6px}
.ex-de{font-family:var(--font-de); font-size:1.5rem; font-weight:550; margin:10px 0}
.ex-zh-hint{color:var(--muted); font-size:.88rem; margin-bottom:10px}
.ex-opts{display:flex; flex-direction:column; gap:10px; margin-top:18px}
.ex-opt{text-align:left; min-height:44px; padding:13px 18px; border-radius:11px; border:1.5px solid var(--line2); background:var(--panel); cursor:pointer; font-size:1rem; font-family:var(--font-ui); transition:all .12s}
.ex-opt .de-opt{font-family:var(--font-de); font-size:1.05rem}
.ex-opt:hover{border-color:var(--ink); background:var(--panel2)}
.ex-opt.sel{border-color:var(--blue); background:var(--blue-soft)}
.ex-opt.correct{border-color:var(--green); background:var(--green-soft)}
.ex-opt.wrong{border-color:var(--red); background:var(--red-soft); animation:shake .3s}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.cloze-line{font-family:var(--font-de); font-size:1.4rem; font-weight:500; margin:14px 0 4px}
.cloze-gap{display:inline-block; min-width:90px; border-bottom:2.5px solid var(--red); text-align:center; color:var(--red); font-weight:650; padding:0 6px}
.word-bank{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0}
.word-chip{font-family:var(--font-de); font-size:1.05rem; padding:8px 16px; border-radius:10px; border:1.5px solid var(--line2); background:var(--panel); cursor:pointer; transition:all .12s}
.word-chip:hover{border-color:var(--ink)}
.word-chip.used{opacity:.25; pointer-events:none}
.answer-line{min-height:52px; border:1.5px dashed var(--line2); border-radius:11px; padding:8px 12px; display:flex; flex-wrap:wrap; gap:8px; align-items:center; background:rgba(237,230,211,.4)}
.answer-line .word-chip{background:var(--ink); color:#EFE9DB; border-color:var(--ink)}
.match-grid{display:grid; grid-template-columns:1fr 1fr; gap:10px 22px; margin-top:16px}
.match-item{min-height:44px; padding:12px 16px; border-radius:11px; border:1.5px solid var(--line2); background:var(--panel); cursor:pointer; font-size:.98rem; transition:all .12s; text-align:left}
.match-item.de-side{font-family:var(--font-de); font-size:1.05rem}
.match-item.sel{border-color:var(--blue); background:var(--blue-soft)}
.match-item.matched{border-color:var(--green); background:var(--green-soft); opacity:.55; pointer-events:none}
.match-item.wrong{animation:shake .3s; border-color:var(--red)}
.ex-feedback{margin-top:20px; padding:15px 18px; border-radius:11px; font-size:.92rem; animation:fadeUp .3s}
.ex-feedback.ok{background:var(--green-soft); border-left:4px solid var(--green)}
.ex-feedback.no{background:var(--red-soft); border-left:4px solid var(--red)}
.ex-feedback b{display:block; margin-bottom:3px}
.ex-actions{margin-top:22px; display:flex; gap:12px; align-items:center}
.listen-big{width:74px; height:74px; border-radius:50%; border:none; background:var(--ink); color:#EFE9DB; font-size:1.7rem; cursor:pointer; display:block; margin:18px auto; transition:transform .15s}
.listen-big:hover{transform:scale(1.06)}
.speak-heard{font-family:var(--font-de); font-size:1.1rem; background:var(--panel2); border-radius:10px; padding:12px 16px; margin-top:14px; min-height:48px}
.ex-result{text-align:center; padding:30px 10px}
.ex-result .big{font-family:var(--font-de); font-size:4rem; font-weight:600; line-height:1.1}
.ex-result p{color:var(--muted); margin:8px 0 24px}

/* ---- flashcards ---- */
.fc-stage{perspective:1200px; margin:26px auto; max-width:520px}
.fc-card{position:relative; width:100%; height:320px; transform-style:preserve-3d; transition:transform .5s cubic-bezier(.2,.7,.3,1); cursor:pointer}
.fc-card.flipped{transform:rotateY(180deg)}
.fc-face{position:absolute; inset:0; backface-visibility:hidden; border-radius:18px; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:30px; text-align:center}
.fc-front{background:var(--panel); border:1px solid var(--line); box-shadow:var(--shadow)}
.fc-front .w{font-family:var(--font-de); font-size:2.6rem; font-weight:600; line-height:1.15; max-width:100%; overflow-wrap:anywhere}
.fc-tools{display:flex; gap:10px; margin-top:14px}
.fc-front .hint{position:absolute; bottom:18px; color:var(--muted); font-size:.78rem}
.fc-flip-trigger{position:absolute; bottom:16px; border:1px solid var(--line2); background:var(--panel2); color:var(--ink); border-radius:999px; padding:7px 16px; font-family:var(--font-ui); font-weight:700; cursor:pointer}
.fc-flip-trigger:hover,.fc-flip-trigger:focus-visible{border-color:var(--ink); outline:2px solid transparent}
.fc-back{background:var(--ink); color:#EFE9DB; transform:rotateY(180deg)}
.fc-back .m{font-size:1.5rem; font-weight:700}
.fc-back .en{color:#B4AA93; font-size:.9rem; margin-top:2px}
.fc-back .ex{font-family:var(--font-de); font-style:italic; margin-top:16px; font-size:1.02rem; color:#D8D0BC}
.fc-back .exzh{font-size:.8rem; color:#8C8371}
.fc-grade{display:flex; gap:12px; justify-content:center; margin-top:22px}
.fc-grade button{flex:0 1 150px; padding:13px 10px; border-radius:12px; border:none; cursor:pointer; font-weight:700; font-size:.92rem; font-family:var(--font-ui); transition:transform .12s}
.fc-grade button:hover{transform:translateY(-2px)}
.fg-again{background:var(--red-soft); color:var(--red)}
.fg-good{background:var(--blue-soft); color:var(--blue)}
.fg-easy{background:var(--green-soft); color:var(--green)}
.fc-grade button small{display:block; font-weight:500; font-size:.7rem; opacity:.75}
.fc-meta{text-align:center; color:var(--muted); font-size:.82rem; margin-top:14px}

/* ---- chat ---- */
.chat-shell{display:flex; flex-direction:column; height:calc(100vh - 210px); height:calc(100dvh - 210px); min-height:440px}
@media (max-width:900px){.chat-shell{height:calc(100dvh - 250px); min-height:380px}}
.scenario-row{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:16px}
.scenario-chip{border:1.5px solid var(--line2); background:var(--panel); border-radius:999px; padding:7px 16px; font-size:.85rem; font-weight:600; cursor:pointer; transition:all .15s; font-family:var(--font-ui)}
.scenario-chip:hover{border-color:var(--ink)}
.scenario-chip.active{background:var(--ink); color:#EFE9DB; border-color:var(--ink)}
.chat-log{flex:1; overflow-y:auto; padding:22px; display:flex; flex-direction:column; gap:14px}
.msg{max-width:76%; padding:12px 17px; border-radius:16px; font-size:.97rem; line-height:1.55; animation:fadeUp .25s}
.msg.user{align-self:flex-end; background:var(--blue); color:#fff; border-bottom-right-radius:5px}
.msg.assistant{align-self:flex-start; background:var(--panel2); border-bottom-left-radius:5px}
.msg.assistant .de-text{font-family:var(--font-de); font-size:1.05rem}
.msg .msg-tools{margin-top:8px; display:flex; gap:6px}
.msg.thinking{color:var(--muted); font-style:italic; background:transparent; padding:4px 17px}
.chat-input-row{display:flex; gap:10px; padding:14px; border-top:1px solid var(--line)}
.chat-input-row input{flex:1; border:1.5px solid var(--line2); border-radius:999px; padding:12px 20px; font-size:1rem; font-family:var(--font-ui); background:var(--panel); color:var(--ink); outline:none}
.chat-input-row input:focus{border-color:var(--blue)}
.chat-empty{text-align:center; color:var(--muted); margin:auto; font-size:.92rem; max-width:44ch}
.chat-empty .big-de{font-family:var(--font-de); font-size:2rem; color:var(--ink); font-style:italic; margin-bottom:8px}

/* ---- grammar / phrases ---- */
.acc{margin-bottom:12px; overflow:hidden}
.acc-head{width:100%; text-align:left; padding:17px 24px; background:var(--panel); border:none; cursor:pointer; display:flex; align-items:center; gap:14px; font-family:var(--font-ui)}
.acc-head:hover{background:var(--panel2)}
.acc-head .num{font-family:var(--font-de); font-size:1.25rem; font-weight:600; color:var(--red); width:30px}
.acc-head h3{font-size:1.02rem; font-weight:700}
.acc-head .de{font-family:var(--font-de); font-style:italic; font-weight:400; color:var(--muted); font-size:.88rem}
.acc-head .arrow{margin-left:auto; transition:transform .25s; color:var(--muted)}
.acc.open .arrow{transform:rotate(180deg)}
.acc-body{display:none; border-top:1px solid var(--line)}
.acc.open .acc-body{display:block}

.phrase-cat{margin-bottom:26px}
.phrase-row{display:flex; align-items:center; gap:14px; padding:12px 20px; border-bottom:1px solid var(--line)}
.phrase-row:last-child{border-bottom:none}
.phrase-row .de{font-family:var(--font-de); font-size:1.08rem; font-weight:550}
.phrase-row .zh{font-size:.82rem; color:var(--muted)}
.phrase-row .note{font-size:.75rem; color:var(--yellow); background:var(--yellow-soft); color:#8a6410; border-radius:6px; padding:1px 8px; margin-left:8px}
.phrase-row .tools{margin-left:auto; display:flex; gap:6px; flex:0 0 auto}
.search-box{width:100%; border:1.5px solid var(--line2); border-radius:999px; padding:12px 22px; font-size:1rem; background:var(--panel); margin-bottom:24px; font-family:var(--font-ui); outline:none; color:var(--ink)}
.search-box:focus{border-color:var(--blue)}

/* ---- 全局检索结果行 ---- */
.search-row{display:flex; align-items:center; gap:14px; padding:14px 20px; border-bottom:1px solid var(--line); text-decoration:none; color:inherit}
.search-row:last-child{border-bottom:none}
a.search-row:hover{background:var(--panel2)}
.sr-main{flex:1; min-width:0}
.sr-de{font-family:var(--font-de); font-size:1.05rem; font-weight:550}
.sr-num{font-weight:600; color:var(--red); margin-right:8px}
.sr-zh{font-size:.82rem; color:var(--muted); margin-top:2px}
.sr-side{margin-left:auto; flex:0 0 auto; font-size:.78rem; color:var(--muted); white-space:nowrap; display:flex; align-items:center; gap:6px}
.sr-more{color:var(--muted); font-size:.82rem; text-align:center; padding:10px 20px}

/* ---- settings ---- */
.set-group{padding:22px 26px; margin-bottom:16px}
.set-group h3{font-size:1.05rem; margin-bottom:4px}
.set-group .d{color:var(--muted); font-size:.85rem; margin-bottom:14px}
.set-group input[type=password],.set-group input[type=text],.set-group select{
  width:100%; max-width:480px; padding:11px 16px; border:1.5px solid var(--line2); border-radius:10px;
  font-size:.95rem; font-family:var(--font-ui); background:var(--panel); color:var(--ink); outline:none}
.set-group input:focus,.set-group select:focus{border-color:var(--blue)}
.set-group label.inline{display:flex; align-items:center; gap:10px; font-size:.9rem; margin-top:8px}
input[type=range]{max-width:300px; accent-color:var(--red)}
.ok-note{color:var(--green); font-size:.85rem; margin-top:8px; font-weight:600}

.pill-note{display:inline-block; font-size:.75rem; font-weight:700; border-radius:999px; padding:2px 10px; background:var(--yellow-soft); color:#8a6410}
.empty-note{color:var(--muted); text-align:center; padding:40px 0; font-size:.92rem}

/* ---- listening (Hören) ---- */
.lh-filters{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:22px}
.lh-chip{border:1.5px solid var(--line2); background:var(--panel); border-radius:999px; padding:7px 18px; font-size:.85rem; font-weight:700; cursor:pointer; transition:all .15s; font-family:var(--font-ui)}
.lh-chip:hover{border-color:var(--ink)}
.lh-chip.active{background:var(--ink); color:#EFE9DB; border-color:var(--ink)}
.lh-list{display:flex; flex-direction:column; gap:18px}
.lh-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow); padding:24px 26px}
.lh-head{display:flex; align-items:center; gap:10px; margin-bottom:8px; flex-wrap:wrap}
.lh-badge{font-size:.72rem; font-weight:800; letter-spacing:.03em; padding:2px 10px; border-radius:999px}
.lh-badge.lv-a1{color:var(--green); background:var(--green-soft)}
.lh-badge.lv-a2{color:#8a6410; background:var(--yellow-soft)}
.lh-badge.lv-b1{color:var(--red); background:var(--red-soft)}
.lh-type-tag{font-size:.76rem; color:var(--muted); border:1px solid var(--line2); border-radius:999px; padding:1px 10px}
.lh-done-badge{margin-left:auto; font-size:.76rem; font-weight:800; color:#fff; background:var(--green); padding:3px 12px; border-radius:999px}
.lh-title{font-family:var(--font-de); font-size:1.2rem; font-weight:600; margin-bottom:12px}
.lh-play-row{display:flex; gap:8px; margin-bottom:10px}
.lh-play-btn{border:1.5px solid var(--line2); background:var(--panel); color:var(--ink); font-family:var(--font-ui); font-weight:700; font-size:.85rem; padding:8px 16px; border-radius:999px; cursor:pointer; transition:all .15s}
.lh-play-btn:hover{background:var(--ink); color:#fff; border-color:var(--ink)}
.lh-play-btn.slow{font-size:.8rem}
.lh-transcript{margin:10px 0 4px; padding:14px 18px; background:var(--panel2); border-radius:10px; border-left:4px solid var(--yellow)}
.lh-transcript-text{font-family:var(--font-de); font-size:1.05rem; line-height:1.6}
.lh-dialog{display:flex; flex-direction:column; gap:6px}
.lh-dline{font-family:var(--font-de); font-size:1.02rem}
.lh-dline b{font-family:var(--font-ui); color:var(--blue)}
.lh-quiz{margin-top:16px; padding-top:16px; border-top:1px dashed var(--line)}
.lh-quiz-body{margin-top:14px; display:flex; flex-direction:column; gap:18px}
.lh-q-text{font-weight:700; margin-bottom:8px; font-size:.95rem}
.lh-q-opts{display:flex; flex-direction:column; gap:8px}
.lh-opt{text-align:left; min-height:44px; padding:10px 16px; border-radius:10px; border:1.5px solid var(--line2); background:var(--panel); cursor:pointer; font-size:.92rem; font-family:var(--font-ui); transition:all .12s}
.lh-opt:hover{border-color:var(--ink); background:var(--panel2)}
.lh-opt.correct{border-color:var(--green); background:var(--green-soft)}
.lh-opt.wrong{border-color:var(--red); background:var(--red-soft); animation:shake .3s}
.lh-q-feedback{margin-top:10px; padding:12px 16px; border-radius:10px; font-size:.88rem}
.lh-q-feedback.ok{background:var(--green-soft); border-left:4px solid var(--green)}
.lh-q-feedback.no{background:var(--red-soft); border-left:4px solid var(--red)}
.lh-q-feedback b{display:block; margin-bottom:3px}
.lh-dict{margin-top:16px; padding-top:16px; border-top:1px dashed var(--line)}
.lh-dict-title{font-size:1rem; margin-bottom:10px}
.lh-dict-input{width:100%; border:1.5px solid var(--line2); border-radius:10px; padding:12px 14px; font-family:var(--font-de); font-size:1.05rem; background:var(--panel); color:var(--ink); outline:none; resize:vertical; margin-bottom:10px}
.lh-dict-input:focus{border-color:var(--blue)}
.lh-char-row{display:flex; gap:8px; margin-bottom:12px}
.lh-char-btn{width:34px; height:34px; border-radius:50%; border:1.5px solid var(--line2); background:var(--panel); font-family:var(--font-de); font-size:1rem; cursor:pointer; transition:all .15s}
.lh-char-btn:hover{background:var(--ink); color:#fff; border-color:var(--ink)}
.lh-dict-result{margin-top:14px}
.lh-dict-diff{display:flex; flex-wrap:wrap; gap:6px; font-family:var(--font-de); font-size:1.05rem; margin-bottom:10px}
.lh-word{padding:2px 8px; border-radius:6px}
.lh-word.ok{background:var(--green-soft); color:var(--green)}
.lh-word.no{background:var(--red-soft); color:var(--red)}
.lh-dict-orig{font-size:.88rem; color:var(--muted); display:flex; align-items:center; gap:8px; flex-wrap:wrap}
.lh-dict-orig .de{font-family:var(--font-de); font-size:1rem; color:var(--ink)}

/* ============ 阅读 Lesen ============ */
.rd-body{position:relative}
.rd-list{display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:16px}
.rd-card{background:var(--panel); border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow); padding:20px 22px; cursor:pointer; transition:transform .15s, box-shadow .15s}
.rd-card:hover{transform:translateY(-2px); box-shadow:0 4px 16px rgba(60,48,20,.1), 0 16px 38px rgba(60,48,20,.09)}
.rd-card-head{display:flex; align-items:center; gap:8px; margin-bottom:10px; flex-wrap:wrap}
.rd-card-title{font-family:var(--font-de); font-size:1.08rem; font-weight:600; margin-bottom:4px; line-height:1.3}
.rd-card-de{font-family:var(--font-de); font-style:italic; color:var(--muted); font-size:.88rem; margin-bottom:10px}
.rd-card-meta{font-size:.78rem; color:var(--muted)}

.rd-back{margin-bottom:20px}
.rd-read-head{display:flex; align-items:center; gap:8px; margin-bottom:10px; flex-wrap:wrap}
.rd-read-title{font-family:var(--font-de); font-weight:600; font-size:1.7rem; line-height:1.25; margin-bottom:4px}
.rd-read-title .de{font-style:italic; color:var(--muted); font-size:1.05rem}
.rd-read-meta{font-size:.82rem; color:var(--muted); margin-bottom:22px}

.rd-text{max-width:62ch; font-family:var(--font-de); font-size:1.12rem; line-height:1.9; white-space:pre-line}
.rd-p{margin-bottom:18px}
.rd-dialog{display:flex; flex-direction:column; gap:10px; margin-bottom:18px}
.rd-dline{line-height:1.7}
.rd-dline b{font-family:var(--font-ui); color:var(--blue)}

.gl{border-bottom:2px dotted var(--red); cursor:pointer; transition:background .15s; border-radius:2px; padding:0 1px}
.gl:hover{background:var(--yellow-soft)}

.gl-bubble{position:fixed; z-index:1000; background:var(--ink); color:#EFE9DB; border-radius:10px; padding:12px 14px; box-shadow:0 8px 26px rgba(0,0,0,.28); max-width:min(280px,80vw); font-family:var(--font-ui); animation:fadeUp .12s ease both}
.gl-bubble-word{font-family:var(--font-de); font-weight:600; font-size:1.05rem; color:#FFF6EC; display:flex; align-items:center; gap:8px; margin-bottom:4px}
.gl-bubble-mean{font-size:.9rem; color:#D8D0BC}
.gl-bubble-play{border:1.5px solid rgba(239,233,219,.35); background:none; color:#EFE9DB; border-radius:999px; width:24px; height:24px; font-size:.72rem; cursor:pointer; flex:0 0 24px; transition:all .15s}
.gl-bubble-play:hover{background:var(--red); border-color:var(--red)}

.rd-quiz{margin-top:8px; padding-top:20px; border-top:1px dashed var(--line); max-width:62ch}
.rd-quiz .lh-dict-title{margin-bottom:16px}

/* ---- wortschatz packs (#/wortschatz + #/cards 入口) ---- */
.wp-entry-chip{display:inline-flex; align-items:center; gap:10px; text-decoration:none; font-family:var(--font-ui); border:1.5px solid var(--line2); background:var(--panel); color:var(--ink); border-radius:999px; padding:9px 18px; font-size:.88rem; font-weight:700; margin-bottom:22px; transition:all .15s}
.wp-entry-chip:hover{border-color:var(--yellow); background:var(--yellow-soft)}
.wp-entry-chip small{font-weight:600; color:var(--muted); font-size:.76rem}

.wp-summary{color:var(--muted); font-size:.9rem; margin-bottom:22px}

.wp-list{display:flex; flex-direction:column; gap:16px}
.wp-card{padding:22px 26px; transition:border-color .15s}
.wp-card.on{border-color:var(--green)}
.wp-card-head{display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap}
.wp-card-main h3{font-family:var(--font-de); font-size:1.2rem; font-weight:600; display:flex; align-items:baseline; gap:10px; flex-wrap:wrap}
.wp-card-main h3 .de{font-style:italic; font-weight:400; color:var(--muted); font-size:.9rem}
.wp-meta{display:flex; align-items:center; gap:10px; margin-top:6px}
.wp-count{font-size:.82rem; color:var(--muted)}

.wp-switch{display:flex; align-items:center; gap:8px; cursor:pointer; flex:0 0 auto}
.wp-switch input{position:absolute; opacity:0; width:0; height:0}
.wp-switch-track{width:38px; height:22px; border-radius:999px; background:var(--panel2); border:1.5px solid var(--line2); position:relative; transition:all .15s; flex:0 0 auto}
.wp-switch-track::after{content:""; position:absolute; top:2px; left:2px; width:16px; height:16px; border-radius:50%; background:var(--panel); box-shadow:0 1px 3px rgba(0,0,0,.2); transition:transform .15s}
.wp-switch input:checked + .wp-switch-track{background:var(--green); border-color:var(--green)}
.wp-switch input:checked + .wp-switch-track::after{transform:translateX(16px); background:#fff}
.wp-switch-text{font-size:.82rem; font-weight:700; color:var(--muted); min-width:52px}

.wp-expand-btn{margin-top:16px; border:1.5px solid var(--line2); background:var(--panel); color:var(--ink2); font-family:var(--font-ui); font-weight:700; font-size:.85rem; padding:8px 16px; border-radius:999px; cursor:pointer; transition:all .15s}
.wp-expand-btn:hover{border-color:var(--ink); background:var(--panel2)}
.wp-body{margin-top:16px}

/* ---- 课程列表状态 ---- */
.lesson-row.completed .idx{background:var(--yellow-soft); border-color:var(--yellow); color:#8a6410}
.task-box .btn{margin-top:14px; color:#EFE9DB; border-color:#8C8371}
.fc-start-area{padding:30px; text-align:center}
.fc-start-area h3{font-family:var(--font-de); font-size:1.3rem; margin-bottom:6px}
.fc-start-area p{color:var(--muted); margin-bottom:16px}
.fc-start-area .counts{font-size:.88rem}
.empty-note.compact{padding:6px 0 16px}
.lh-best-badge{font-size:.76rem; font-weight:700; color:var(--muted); background:var(--panel2); padding:3px 10px; border-radius:999px}
.lh-score-result{margin:10px 0; padding:10px 14px; border-radius:9px; font-size:.86rem; font-weight:700}
.lh-score-result:empty{display:none}
.lh-score-result.ok{color:var(--green); background:var(--green-soft)}
.lh-score-result.no{color:var(--red); background:var(--red-soft)}
.rd-quiz .btn{margin-top:14px}
@media (max-width:900px){
  #app{flex-direction:column}
  /* 纵向排列后 flex-basis 作用在高度上：必须清掉桌面端的 236px，否则侧栏被撑到 236px 高、导航项跟着被拉长 */
  #sidebar{width:100%; flex:0 0 auto; height:auto; position:relative; flex-direction:column; padding:14px 0 0}
  .logo{padding:0 78px 14px 18px}
  #nav,.side-foot{display:none}
  /* 顶部只剩 logo 一行，导航移到底部拇指区 */
  #sidebar{padding:12px 0 12px; padding-top:calc(12px + env(safe-area-inset-top))}
  .logo{padding:0 18px; border-bottom:none; gap:10px}
  .logo-mark{width:30px; height:30px; flex:0 0 30px}
  .logo-text{font-size:1.2rem}
  .logo-text span{font-size:.6rem; letter-spacing:.22em; margin-top:2px}
  #tabbar{
    display:flex; position:fixed; left:0; right:0; bottom:0; z-index:50;
    background:var(--ink); border-top:1px solid rgba(239,233,219,.12);
    padding:6px 8px calc(6px + env(safe-area-inset-bottom));
  }
  #tabbar a,#tabbar button{
    flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px;
    min-height:50px; padding:6px 4px; border-radius:12px; border:none; background:none; cursor:pointer;
    color:#B4AA93; font-family:var(--font-ui); font-size:.7rem; font-weight:700; text-decoration:none; position:relative;
    transition:color .15s, background .15s;
  }
  #tabbar .nb{transform:scale(1.35); transform-origin:center}
  #tabbar .nb-tri{transform:scale(1.35) translateY(-1px)}
  #tabbar .active,#tabbar .open{color:#FFF6EC; background:rgba(194,72,31,.28)}
  #tabbar .active .nb,#tabbar .open .nb{color:#F3A98A}
  #tabbar .due-badge{position:absolute; top:4px; left:calc(50% + 6px); margin:0}
  #more-sheet{display:block; position:fixed; inset:0; z-index:45}
  #more-sheet[hidden]{display:none}
  .sheet-backdrop{position:absolute; inset:0; background:rgba(34,29,20,.45); animation:fadeIn .2s ease both}
  .sheet{
    position:absolute; left:0; right:0; bottom:calc(62px + env(safe-area-inset-bottom));
    background:var(--panel); border-radius:20px 20px 0 0; padding:16px 14px 18px;
    display:grid; grid-template-columns:1fr 1fr; gap:8px; box-shadow:0 -12px 40px rgba(60,48,20,.18);
    animation:sheetUp .25s cubic-bezier(.2,.7,.3,1) both;
  }
  .sheet a{display:flex; align-items:center; gap:9px; min-height:52px; padding:10px 12px; border-radius:12px; background:var(--panel2); color:var(--ink); text-decoration:none; font-weight:700; font-size:.88rem; white-space:nowrap}
  .sheet a .nb{color:var(--red)}
  .sheet .github-sheet-link{grid-column:1 / -1; background:var(--ink); color:#EFE9DB}
  .sheet .github-sheet-link:hover,.sheet .github-sheet-link:focus-visible{background:var(--ink2)}
  .sheet .github-sheet-link .github-icon{color:var(--yellow)}
  .sheet .github-sheet-link em{color:#B4AA93}
  .sheet a em{font-style:italic; font-family:var(--font-de); font-weight:400; color:var(--muted); font-size:.76rem; margin-left:auto; overflow:hidden; text-overflow:ellipsis}
  .sheet a.active{background:var(--red-soft); outline:1.5px solid var(--red)}
  @keyframes sheetUp{from{transform:translateY(24px); opacity:0} to{transform:none; opacity:1}}
  @keyframes fadeIn{from{opacity:0} to{opacity:1}}
  body.sheet-open{overflow:hidden}
  .stagger>*{animation:none}
  /* 桌面端的 margin:0 auto 会让 #main 收缩到内容的最小宽度（长表格），整页被撑得比屏幕宽、导航栏却还是屏宽；
     手机端强制铺满屏幕，并裁掉残余的横向溢出 */
  #main{width:100%; max-width:none; margin:0; padding:22px 20px calc(90px + env(safe-area-inset-bottom)); overflow-x:clip}
  .hero-row,.unit-grid{grid-template-columns:1fr}
  .msg{max-width:88%}
  /* 阶段标题：固定两行（标题 / 进度），不让 flex-wrap 看标题长短决定换不换行，否则进度条被截断、各块高度不一 */
  .phase-head{display:grid; grid-template-columns:1fr; gap:10px; padding:16px 18px}
  .phase-head-meta{width:100%}
  .phase-head-meta .phase-bar{flex:1 1 auto; max-width:none}
  .phase-arrow{margin-left:auto}
  /* 词汇表：四列并排改成卡片式——第一行“词 + 播放键”，下面释义、例句各占一行 */
  .vocab-table table,.vocab-table tbody{display:block; width:100%}
  .vocab-table tr{display:grid; grid-template-columns:minmax(0,1fr) auto; grid-template-areas:"w a" "m a" "ex ex"; column-gap:10px; padding:12px 14px}
  .vocab-table td{display:block; padding:0}
  .vocab-table td.w{grid-area:w; white-space:normal}
  .vocab-table td.m{grid-area:m; margin-top:2px}
  .vocab-table td.ex{grid-area:ex; margin-top:8px}
  .vocab-table td.a{grid-area:a; display:flex; gap:6px; align-self:start; text-align:left}
  /* 对话：说话人标签放到句子上方，正文占满整行 */
  .dline{display:grid; grid-template-columns:minmax(0,1fr) 30px; gap:4px 12px; padding:12px 16px}
  .dline .who{grid-column:1 / -1; width:auto; flex:none; padding-top:0}
  .dline .txt{grid-column:1; min-width:0}
  .dline .tts-btn{grid-column:2; grid-row:2; margin-left:0; align-self:start}
}
@media (max-width:560px){
  #main{padding:18px 16px calc(90px + env(safe-area-inset-bottom))}
  .start-card{padding:24px 20px 26px}
  .start-card h2{font-size:1.8rem}
  .btn.big{padding:14px 26px}
  h1.page{font-size:2rem}
  .page-sub{margin-bottom:24px}
  /* 窄屏收窄卡片内边距，给正文多留些字宽 */
  .start-card,.wort-card,.map-card,.kann-card,.grammar-box,.ex-wrap,.set-group,.lh-card,.wp-card,.rd-card{padding-left:18px; padding-right:18px}
  .phase-head,.phase-body,.lesson-row,.acc-head,.favorite-main{padding-left:16px; padding-right:16px}
  .unit-card{padding:20px 18px}
  .unit-num{font-size:3.6rem}
  .match-grid{gap:8px 10px}
  .fc-card{height:290px}
  .fc-front .w{font-size:2.1rem}
  .fc-grade{gap:7px}
  .fc-grade button{padding:11px 6px}
  .ex-actions,.lh-play-row{flex-wrap:wrap}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important; animation-iteration-count:1!important; scroll-behavior:auto!important; transition-duration:.01ms!important}
}

/* ============ 长按/右键查发音弹窗 ============ */
.pron-pop{
  position:fixed; z-index:1200; background:var(--ink); color:#EFE9DB;
  border-radius:12px; padding:12px 14px 10px; box-shadow:0 10px 30px rgba(0,0,0,.32);
  max-width:min(320px,86vw); font-family:var(--font-ui);
  animation:fadeUp .12s ease both;
}
.pron-pop::after{
  content:""; position:absolute; left:50%; transform:translateX(-50%);
  border:7px solid transparent; pointer-events:none;
}
.pron-above::after{top:100%; border-top-color:var(--ink)}
.pron-below::after{bottom:100%; border-bottom-color:var(--ink)}

.pron-head{display:flex; align-items:center; gap:8px; margin-bottom:8px; flex-wrap:wrap}
.pron-head .art{font-size:.78rem; margin-right:0}
.pron-word{font-family:var(--font-de); font-weight:600; font-size:1.12rem; color:#FFF6EC}
.pron-play{
  border:1.5px solid rgba(239,233,219,.35); background:none; color:#EFE9DB;
  border-radius:999px; width:26px; height:26px; font-size:.72rem; cursor:pointer;
  flex:0 0 26px; transition:background .15s, border-color .15s; line-height:1;
}
.pron-play:hover:not(:disabled){background:var(--red); border-color:var(--red)}
.pron-play:disabled{opacity:.4; cursor:not-allowed}
.pron-play.slow{margin-left:-2px}

/* 音节：重音音节加粗高亮，上方一个重音符 */
.pron-syl{font-family:var(--font-de); font-size:1.05rem; letter-spacing:.02em; margin-bottom:6px}
.pron-dot{opacity:.4; margin:0 2px}
.pron-s{position:relative; color:#E4DCC8}
.pron-s.stressed{
  color:#FFD9A8; font-weight:700; text-transform:uppercase; letter-spacing:.05em;
}
.pron-s.stressed::before{
  content:"ˈ"; position:absolute; left:50%; top:-.72em; transform:translateX(-50%);
  font-size:.8em; color:#FFD9A8; opacity:.85;
}
.pron-ipa{font-size:.92rem; color:#CFE3D2; font-family:'Segoe UI',system-ui,sans-serif; margin-bottom:5px}
.pron-note{font-size:.74rem; color:#A99E88; line-height:1.4}

/* 长按期间不要冒出系统的文本选择/长按菜单 */
.fc-face .w,.wort-card .w,.vocab-table td.w{-webkit-touch-callout:none}

/* ============ 闪卡重音标注 ============ */
.fc-stress{font-family:var(--font-de)}
.fc-stress .s{position:relative}
.fc-stress .s.on{position:relative}
.fc-stress .s.on::before{
  content:"ˈ"; position:absolute; left:50%; top:-.55em; transform:translateX(-50%);
  font-size:.55em; color:var(--red); opacity:.9; font-weight:700;
}
.fc-syl-hint{
  font-size:.82rem; color:var(--muted); font-family:var(--font-ui);
  margin-top:4px; letter-spacing:.04em;
}
.fc-syl-hint b{color:var(--ink2); font-weight:700}
.fc-ipa{font-size:.85rem; color:var(--muted); margin-top:2px}