/* ==========================================================
   英语模块 v33 · 语法 / 阅读 / 复习 / 进度（陶土主题）
   ========================================================== */
.fw-body{margin-top:16px}

/* --- 顶部 Tab --- */
.fw-tabs{display:flex;gap:6px;padding:8px;overflow-x:auto;scrollbar-width:none}
.fw-tabs::-webkit-scrollbar{display:none}
.fw-tab{flex:1;min-width:76px;display:flex;flex-direction:column;align-items:center;gap:4px;padding:9px 6px;
  border-radius:12px;font-size:12px;font-weight:600;color:var(--muted);background:var(--bg);transition:.16s var(--ease)}
.fw-tab svg{width:19px;height:19px}
.fw-tab:hover{background:var(--clay-soft);color:var(--clay-ink)}
.fw-tab.on{background:var(--clay);color:#fff;box-shadow:var(--shadow-sm)}
[data-theme="dark"] .fw-tab{background:rgba(255,255,255,.05)}
[data-theme="dark"] .fw-tab.on{background:var(--clay)}

/* --- 分级筛选 --- */
.lv-filter{display:flex;gap:6px;margin-bottom:14px;flex-wrap:wrap}
.lv-b{padding:5px 14px;border-radius:99px;border:1px solid var(--line);background:var(--card);
  font-size:12px;font-weight:600;color:var(--muted);transition:.15s var(--ease)}
.lv-b:hover{border-color:var(--clay);color:var(--clay-deep)}
.lv-b.on{background:var(--clay);border-color:var(--clay);color:#fff}

/* --- 状态 / 分级 徽标 --- */
.pill{display:inline-flex;align-items:center;gap:4px;font-size:10px;font-weight:700;padding:2px 8px;border-radius:8px;
  background:var(--clay-soft);color:var(--clay-ink);white-space:nowrap}
.pill.lv-A2{background:var(--sage-soft);color:var(--sage-deep)}
.pill.lv-B1{background:var(--oat-soft);color:var(--oat-deep)}
.pill.lv-B2{background:var(--mist-soft);color:var(--mist-deep)}
.pill.st-new{background:var(--bg);color:var(--muted);border:1px solid var(--line)}
.pill.st-due{background:var(--warn-bg);color:var(--warn-ink)}
.pill.st-ok{background:var(--ok-bg);color:var(--ok-ink)}

/* --- 列表项（语法 / 阅读 / 推荐） --- */
.fw-list{display:flex;flex-direction:column;gap:9px}
.list-item{display:flex;align-items:center;gap:11px;width:100%;text-align:left;padding:12px 14px;border-radius:13px;
  border:1px solid var(--line);background:var(--card);cursor:pointer;font-family:inherit;transition:.16s var(--ease)}
.list-item:hover{border-color:var(--clay);background:var(--clay-soft);transform:translateY(-1px)}
.list-item .li-ic{width:34px;height:34px;flex:0 0 auto;border-radius:10px;background:var(--clay-soft);
  color:var(--clay-deep);display:flex;align-items:center;justify-content:center;font-size:0}
.list-item .li-ic svg{width:17px;height:17px}
.list-item .li-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.list-item .li-t{font-size:14px;font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.list-item .li-s{font-size:11.5px;color:var(--muted)}
.rec-hint{font-size:12.5px;color:var(--muted);margin-bottom:10px}

/* --- 单词闪卡 --- */
.fc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
@media(max-width:560px){.fc-grid{grid-template-columns:1fr}}
.flashcard{perspective:1000px;height:176px;cursor:pointer}
.flashcard .fc-in{position:relative;width:100%;height:100%;transition:transform .5s var(--ease);transform-style:preserve-3d}
.flashcard.flip .fc-in{transform:rotateY(180deg)}
.flashcard .fc-front,.flashcard .fc-back{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  border:1px solid var(--line);border-radius:14px;padding:14px 15px;background:var(--card);display:flex;flex-direction:column;overflow:hidden}
.flashcard .fc-front{background:linear-gradient(150deg,var(--cream),var(--clay-soft))}
.flashcard.got .fc-front{border-color:var(--sage);background:linear-gradient(150deg,#fff,var(--sage-tint))}
.flashcard .fc-w{font-size:21px;font-weight:700;color:var(--clay-deep);letter-spacing:.2px}
.flashcard .fc-ph{font-size:12.5px;color:var(--muted);margin-top:2px}
.flashcard .fc-zh{font-size:14px;font-weight:600;color:var(--ink);margin-top:8px}
.flashcard .fc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
.flashcard .fc-flip{font-size:11px;color:var(--muted)}
.flashcard .fc-back{transform:rotateY(180deg);background:var(--card);gap:8px}
.flashcard .fc-back .fc-ex{font-size:13.5px;line-height:1.65;color:var(--ink)}
.flashcard .fc-back .fc-ex .spk{display:inline-flex;margin-right:5px;color:var(--clay-deep);font-size:0}
.flashcard .fc-back .fc-ex .spk svg{width:13px;height:13px}
.flashcard .fc-back .fc-exzh{font-size:12px;color:var(--muted);line-height:1.6}
.flashcard .fc-back .fc-native{font-size:12px;color:var(--clay-ink);line-height:1.7;background:var(--clay-soft);
  border-radius:10px;padding:8px 10px;overflow:auto;flex:1}
.flashcard .fc-back .fc-native b{color:var(--clay-deep)}

/* --- 课程内容 --- */
.fw-back{display:flex;align-items:center;gap:8px;margin-bottom:14px}
.fw-back .spacer{flex:1}
.lesson-title{font-size:17px;font-weight:700;color:var(--clay-ink);line-height:1.45;margin-bottom:12px}
.lesson-explain{font-size:13.5px;line-height:1.95;color:var(--ink);background:var(--clay-soft);
  border-radius:12px;padding:13px 15px}
.lesson-explain b{color:var(--clay-deep)}
.section-title{display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--muted);
  margin:18px 0 10px}
.section-title svg{width:14px;height:14px;stroke:var(--clay-deep)}
.lesson-ex-list{display:flex;flex-direction:column;gap:9px}
.lesson-ex{display:flex;align-items:flex-start;gap:10px;width:100%;text-align:left;padding:11px 13px;border-radius:12px;
  border:1px solid var(--line-soft);background:var(--oat-tint);cursor:pointer;font-family:inherit;transition:.15s var(--ease)}
.lesson-ex:hover{border-color:var(--clay);background:var(--clay-soft)}
.lesson-ex .spk{flex:0 0 auto;color:var(--clay-deep);font-size:0;margin-top:2px}
.lesson-ex .spk svg{width:14px;height:14px}
.lesson-ex .le-main{display:flex;flex-direction:column;gap:3px;min-width:0}
.lesson-ex .le-en{font-size:14px;color:var(--ink);line-height:1.65}
.lesson-ex .le-zh{font-size:12px;color:var(--muted)}

/* --- 阅读正文 --- */
.reading-meta{font-size:11.5px;color:var(--muted);margin-bottom:10px}
.reading-meta b{color:var(--clay-deep);font-weight:600}
.reading-passage{position:relative;display:block;width:100%;text-align:left;padding:16px 18px 16px 44px;border-radius:14px;
  border:1px solid var(--line-soft);background:var(--cream);font-size:15px;line-height:2;color:var(--ink);
  cursor:pointer;font-family:inherit;transition:.15s var(--ease)}
.reading-passage:hover{border-color:var(--clay);background:var(--clay-soft)}
.reading-passage .rp-spk{position:absolute;left:14px;top:16px;color:var(--clay-deep);font-size:0}
.reading-passage .rp-spk svg{width:17px;height:17px}
[data-theme="dark"] .reading-passage,[data-theme="dark"] .lesson-ex{background:rgba(255,255,255,.04)}

/* --- 母语者视角 --- */
.native-line{display:flex;gap:9px;align-items:flex-start;margin-top:12px;padding:11px 13px;border-radius:12px;
  background:linear-gradient(135deg,var(--clay-soft),transparent);border:1px dashed var(--clay)}
.native-line.big{margin-top:18px}
.native-line .nl-tag{flex:0 0 auto;font-size:10.5px;font-weight:700;color:#fff;background:var(--clay-deep);
  border-radius:7px;padding:2px 8px;line-height:1.6;white-space:nowrap}
.native-line .nl-tx{flex:1;font-size:12.5px;line-height:1.85;color:var(--ink)}
.native-card{padding:16px 18px;margin-top:16px}
.native-card .nc-title{font-size:16px;font-weight:700;color:var(--clay-ink);margin:2px 0 10px;line-height:1.5}
.native-card .nc-body{font-size:13.5px;line-height:1.95;color:var(--ink)}

/* --- 测验器 --- */
.quiz-wrap{display:flex;flex-direction:column;gap:11px}
.quiz-prog{display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:var(--muted);font-weight:600}
.quiz-prog .qscore{color:var(--clay-deep)}
.quiz-q{font-size:15px;font-weight:600;color:var(--ink);line-height:1.7}
.quiz-opts{display:flex;flex-direction:column;gap:8px}
.quiz-opt{display:flex;align-items:flex-start;gap:10px;width:100%;text-align:left;padding:11px 13px;border-radius:12px;
  border:1px solid var(--line);background:var(--card);font-family:inherit;font-size:13.5px;color:var(--ink);
  line-height:1.6;transition:.15s var(--ease)}
.quiz-opt:hover{border-color:var(--clay);background:var(--clay-soft)}
.quiz-opt .qk{flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--clay-soft);color:var(--clay-deep);
  font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}
.quiz-opt .qt{flex:1}
.quiz-opt.correct{border-color:var(--sage);background:var(--sage-tint)}
.quiz-opt.correct .qk{background:var(--sage);color:#fff}
.quiz-opt.wrong{border-color:#E0A29B;background:var(--mist-tint)}
.quiz-opt.wrong .qk{background:#C0392B;color:#fff}
.quiz-feedback{font-size:13px;font-weight:700;display:none}
.quiz-feedback.ok,.quiz-feedback.no{display:block}
.quiz-feedback.ok{color:var(--ok-ink)}
.quiz-feedback.no{color:var(--pr1-ink)}
.quiz-explain{display:none;font-size:12.5px;line-height:1.85;color:var(--muted);background:var(--bg);
  border-left:3px solid var(--clay);border-radius:0 10px 10px 0;padding:10px 13px}
.quiz-explain.on{display:block}
.quiz-next{margin-top:2px}
.quiz-done{text-align:center;padding:16px 12px}
.quiz-done .qd-n{font-size:19px;font-weight:800;color:var(--clay-deep)}
.quiz-done .qd-bar{height:8px;border-radius:99px;background:var(--clay-soft);overflow:hidden;margin:12px 0}
.quiz-done .qd-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--clay),var(--clay-deep));transition:width .5s var(--ease)}
.quiz-done .qd-t{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:14px}

/* --- 进度页 --- */
.pg-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
@media(max-width:560px){.pg-stats{grid-template-columns:repeat(2,1fr)}}
.pg-s{background:var(--clay-soft);border-radius:12px;padding:12px 10px;text-align:center}
.pg-s .pg-n{font-size:20px;font-weight:800;color:var(--clay-deep);font-variant-numeric:tabular-nums}
.pg-s .pg-l{font-size:11px;color:var(--muted);margin-top:2px}
.bar-row{margin-bottom:14px}
.bar-hd{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px;flex-wrap:wrap}
.bar-hd .bar-t{font-size:13px;font-weight:700;color:var(--clay-ink)}
.bar-hd .bar-v{font-size:11.5px;color:var(--muted)}
.bar{height:9px;border-radius:99px;background:var(--clay-soft);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--clay),var(--clay-deep));
  transition:width .5s var(--ease)}
.cov-item{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line-soft);flex-wrap:wrap}
.cov-item:last-of-type{border-bottom:none}
.cov-item .cov-t{font-size:12.5px;color:var(--ink);flex:1;min-width:120px}
.cov-item .cov-n{font-size:11.5px;color:var(--muted)}

/* ==========================================================
   核心画面 · 语块思维（v34）
   ========================================================== */
.fw-tab{min-width:64px;padding:9px 4px;font-size:11.5px}

/* --- 列表 --- */
.ch-intro{font-size:12.5px;color:var(--muted);line-height:1.85;margin-bottom:14px;
  padding:10px 13px;border-radius:12px;background:var(--clay-soft);border-left:3px solid var(--clay)}
.ch-intro b{color:var(--clay-ink)}
.list-item .li-ic .ch-key-mini{font-size:11.5px;font-weight:800;color:var(--clay-deep);letter-spacing:.2px}

/* --- 详情：主视觉 --- */
.ch-hero{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.ch-key{font-size:26px;font-weight:800;color:var(--clay-deep);letter-spacing:.5px;font-family:Georgia,'Times New Roman',serif}
.ch-kind{font-size:11px;font-weight:700;color:#fff;background:var(--clay);padding:3px 10px;border-radius:99px}
.ch-core{margin:14px 0;padding:14px 16px;border-radius:14px;border:1px dashed var(--clay);
  background:linear-gradient(150deg,var(--cream),var(--clay-soft))}
.ch-core-tag{display:inline-block;font-size:10.5px;font-weight:700;color:#fff;background:var(--clay-deep);
  padding:2px 9px;border-radius:7px;margin-bottom:8px}
.ch-core-tx{font-size:14px;font-weight:600;color:var(--ink);line-height:1.85}
.ch-tip{font-size:12.5px;color:var(--muted);line-height:1.8;padding:9px 12px;border-radius:10px;
  background:var(--bg);margin-bottom:6px}

/* --- 用法族 --- */
.ch-uses{display:flex;flex-direction:column;gap:10px}
.ch-use{border:1px solid var(--line);border-radius:12px;padding:11px 13px;background:var(--card);transition:.16s var(--ease)}
.ch-use:hover{border-color:var(--clay)}
.cu-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.cu-p{display:inline-flex;align-items:center;gap:6px;padding:4px 11px 4px 8px;border-radius:9px;
  border:1px solid var(--clay-soft);background:var(--clay-soft);font-family:inherit;font-size:15px;
  font-weight:700;color:var(--clay-deep);cursor:pointer;transition:.15s var(--ease)}
.cu-p:hover{background:var(--clay);border-color:var(--clay);color:#fff}
.cu-p .spk{font-size:0}
.cu-p .spk svg{width:13px;height:13px}
.cu-zh{font-size:12.5px;font-weight:600;color:var(--ink)}
.cu-ex{display:flex;align-items:flex-start;gap:7px;width:100%;text-align:left;margin-top:8px;padding:7px 9px;
  border-radius:9px;background:var(--bg);font-family:inherit;cursor:pointer;border:none;transition:.15s var(--ease)}
.cu-ex:hover{background:var(--clay-soft)}
.cu-ex .spk{flex:0 0 auto;font-size:0;color:var(--clay-deep);margin-top:2px}
.cu-ex .spk svg{width:13px;height:13px}
.cu-ex .cue-en{flex:1;font-size:13px;color:var(--ink);line-height:1.7}
.cue-zh{font-size:12px;color:var(--muted);margin-top:4px;padding-left:9px}

/* --- 首页「今日核心画面」 --- */
.chunk-card{background:linear-gradient(150deg,var(--cream),var(--clay-soft))}
.cc-top{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.cc-key{font-size:22px;font-weight:800;color:var(--clay-deep);font-family:Georgia,'Times New Roman',serif}
.cc-title{font-size:14px;font-weight:700;color:var(--ink)}
.cc-core{font-size:13px;color:var(--ink);line-height:1.85;margin-bottom:12px}
.cc-core .ch-core-tag{margin-right:7px;margin-bottom:0}
.cc-uses{display:flex;flex-wrap:wrap;gap:7px}
.cc-use{display:inline-flex;align-items:center;gap:5px;padding:5px 11px 5px 8px;border-radius:99px;
  border:1px solid var(--line);background:var(--card);cursor:pointer;font-family:inherit;transition:.15s var(--ease)}
.cc-use:hover{border-color:var(--clay);background:var(--card)}
.cc-use .spk{font-size:0;color:var(--clay-deep)}
.cc-use .spk svg{width:12px;height:12px}
.cc-use b{font-family:Georgia,'Times New Roman',serif;font-size:13px;color:var(--clay-deep)}
.cc-use i{font-style:normal;font-size:11.5px;color:var(--muted)}
.cc-tip{font-size:12px;color:var(--muted);line-height:1.8;margin-top:12px;padding-top:10px;border-top:1px solid var(--line-soft)}

/* --- 单词卡：正面单词可朗读 --- */
.fc-hint{font-size:11.5px;color:var(--muted);margin-bottom:12px}
.flashcard .fc-w{display:flex;align-items:center;gap:7px;align-self:flex-start;padding:0;border:none;
  background:none;font-size:21px;font-weight:700;color:var(--clay-deep);letter-spacing:.2px;
  cursor:pointer;font-family:inherit;text-align:left}
.flashcard .fc-w .spk{font-size:0;color:var(--clay)}
.flashcard .fc-w .spk svg{width:15px;height:15px}
.flashcard .fc-w:hover .spk{color:var(--clay-deep)}

/* --- 复习题：题干朗读 --- */
.qq-spk{display:inline-flex;vertical-align:-2px;margin-right:7px;padding:3px;border-radius:7px;
  background:var(--clay-soft);color:var(--clay-deep);font-size:0;cursor:pointer;border:none}
.qq-spk svg{width:14px;height:14px}
.qq-spk:hover{background:var(--clay);color:#fff}

/* ==========================================================
   v35 · 词 ↔ 画面 双向链接（一个画面在词库里长出了哪些词）
   ========================================================== */

/* --- 单词卡背面：「这个单词长在哪张画上」 --- */
.fc-img{margin:9px 0;padding:9px 12px;border-radius:10px;background:var(--clay-soft);
  font-size:12px;line-height:1.7;color:var(--ink)}
.fc-img .fci-tag{display:inline-block;font-size:9.5px;font-weight:700;color:#fff;
  background:var(--clay-deep);padding:2px 8px;border-radius:6px;margin-right:8px;
  text-transform:uppercase;letter-spacing:.4px;vertical-align:1px}
.fc-img b{color:var(--clay-deep)}

/* --- 画面详情：长在这一族画面上的词 --- */
.ch-echo{display:flex;flex-wrap:wrap;gap:8px}
.che-item{display:flex;align-items:center;gap:8px;padding:8px 13px 8px 10px;
  border:1px solid var(--line);border-radius:11px;background:var(--card);
  font-family:inherit;font-size:12.5px;cursor:pointer;transition:.15s var(--ease);
  text-align:left;color:var(--ink)}
.che-item:hover{border-color:var(--clay);background:var(--clay-soft)}
.che-item .spk{font-size:0;color:var(--clay-deep);display:inline-flex;
  width:22px;height:22px;align-items:center;justify-content:center;flex:0 0 auto;
  border-radius:50%;background:var(--clay-soft)}
.che-item .spk svg{width:12px;height:12px}
.che-item:hover .spk{background:var(--clay);color:#fff}
.che-main{display:flex;flex-direction:column;gap:1px}
.che-main b{font-size:14px;font-weight:700;color:var(--clay-deep);letter-spacing:.2px}
.che-main i{font-style:normal;font-size:11px;color:var(--ink);font-weight:600}
.che-main em{font-style:normal;font-size:10.5px;color:var(--muted);line-height:1.4;
  max-width:230px;display:block;margin-top:1px}