/* ============================================================
   JLPT GO  样式  —— 墨 / 和纸 / 朱印红
   设计令牌：语义变量统一管理，深浅模式各定义一次。
   旧变量名(--ink/--shu/--line…)保留为别名，向后兼容。
   ============================================================ */
:root {
  /* 品牌 */
  --primary:        #b5432a;   /* 朱印红：主操作、选中、品牌 */
  --primary-strong: #93341f;   /* 朱·深：读音等强调文字 */
  --primary-soft:   #f7eae5;   /* 朱·底：选中态/错误项浅底 */
  --secondary:      #33586e;   /* 藍：次级信息、语法/読解系 */
  --secondary-soft: #e9eff2;
  --accent:         #a87b16;   /* 金：XP/成就/宝箱（全站唯一金） */
  --accent-soft:    #f6eed7;

  /* 中性层次：背景 < 下沉区 < 卡片，拉开层次 */
  --bg:        #f4f1e8;        /* 和纸 页面背景 */
  --surface:   #fffdf8;        /* 卡片/弹窗 */
  --surface-2: #f2ede0;        /* 下沉区：听力块/解释/文章 */
  --hover:     #ece5d4;        /* 行/标签 hover */
  --border:        #e0d9c7;
  --border-strong: #c8bfa9;
  --text-1: #26241f;           /* 主文字（墨） */
  --text-2: #57534a;           /* 次级文字 */
  --text-3: #8b8577;           /* 弱提示/占位 */

  /* 状态色（自适应深浅，可作文字/边框） */
  --success:      #3d7a52;  --success-soft: #e4f0e6;  --success-text: #275c3c;
  --warning:      #a06e14;  --warning-soft: #f7eed6;  --warning-text: #7a530e;
  --error:        #b3372b;  --error-soft:   #f9e9e6;  --error-text:   #93291e;
  /* 状态实底（白字场景专用，深浅模式不翻转：Toast 等浮层） */
  --success-solid: #3d7a52; --warning-solid: #a06e14; --error-solid: #b3372b;

  --focus: rgba(181, 67, 42, .35);   /* 键盘/表单聚焦环 */

  /* 热图梯度（朱系） */
  --hm-1: #f5d8cd;  --hm-2: #e79c82;

  /* 分类徽章（soft 底 + text 字） */
  --tag-n1-bg: #ece5f9;  --tag-n1-fg: #5b3aa8;
  --tag-n2-bg: #e2ecf9;  --tag-n2-fg: #2456b8;
  --tag-n3-bg: #dff1ed;  --tag-n3-fg: #176858;
  --tag-n4-bg: #e8f1df;  --tag-n4-fg: #476c22;
  --tag-n5-bg: #f6ecd6;  --tag-n5-fg: #79540e;
  --tag-rd-bg: #dff0f8;  --tag-rd-fg: #0d6a91;
  --tag-ls-bg: #f9e4ee;  --tag-ls-fg: #a02b64;

  --shadow: 0 1px 2px rgba(32,32,29,.06), 0 8px 24px rgba(32,32,29,.07);
  --r: 14px;

  /* Game UI tokens */
  --game-primary: var(--primary);
  --game-secondary: var(--secondary);
  --game-success: var(--success);
  --game-error: var(--error);
  --game-warning: var(--warning);
  --game-coin: #c89422;
  --game-rare: #6c5ce7;
  --game-radius: 14px;
  --game-radius-sm: 10px;
  --game-shadow: 0 2px 7px rgba(32,32,29,.06), 0 16px 42px rgba(32,32,29,.09);
  --game-shadow-soft: 0 1px 4px rgba(32,32,29,.05), 0 8px 24px rgba(32,32,29,.06);
  --game-speed-fast: 150ms;
  --game-speed: 240ms;
  --game-speed-slow: 340ms;
}

/* 旧名别名（全站既有引用走这里）。
   注意：var() 在定义处解析固化，别名必须同时挂在 body.dark 上，
   深色时才会在 body 层重新解析、取到翻转后的 token。 */
:root, body.dark {
  --ink:    var(--text-1);
  --ink-2:  var(--text-2);
  --paper:  var(--bg);
  --card:   var(--surface);
  --line:   var(--border);
  --shu:    var(--primary);
  --shu-d:  var(--primary-strong);
  --ai:     var(--secondary);
  --green:  var(--success);
  --amber:  var(--warning);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html [hidden] { display: none !important; }

body {
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", "PingFang SC",
               "Microsoft YaHei", system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.serif {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif JP",
               "Songti SC", serif;
}

/* ---------- 顶栏 ---------- */
header.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .mark {
  font-weight: 800; font-size: 1.35rem; letter-spacing: .02em;
  color: var(--ink);
}
.brand .seal {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 6px;
  background: var(--shu); color: #fff; font-weight: 800;
  font-size: .95rem; transform: rotate(-4deg);
  box-shadow: var(--shadow);
}
.brand .tag { color: var(--ink-2); font-size: .82rem; }

nav.tabs { display: flex; gap: 4px; }
nav.tabs button {
  border: 0; background: transparent; cursor: pointer;
  font: inherit; font-size: .92rem; color: var(--ink-2);
  padding: 8px 14px; border-radius: 9px;
}
nav.tabs button.active { background: var(--ink); color: var(--paper); }
nav.tabs button:hover:not(.active) { background: var(--hover); }

.userbox { display: flex; align-items: center; gap: 12px; font-size: .9rem; }
.userbox .who { color: var(--ink-2); }
.user-title {
  font-size: .78rem; font-weight: 700; color: var(--shu);
  background: var(--primary-soft); border: 1px solid var(--shu);
  border-radius: 999px; padding: 3px 10px;
}

/* 五级切换：桌面保持紧凑，手机端独占一行并满足触控尺寸 */
.level-switch {
  display: grid; grid-template-columns: repeat(5, minmax(42px, 1fr));
  border: 1px solid var(--line); border-radius: 9px; overflow: hidden;
}
.level-switch button {
  border: 0; background: var(--card); cursor: pointer; font: inherit; font-weight: 700;
  min-width: 42px; min-height: 38px; padding: 6px 9px;
  font-size: .82rem; color: var(--ink-2); letter-spacing: 0; touch-action: manipulation;
}
.level-switch button + button { border-left: 1px solid var(--line); }
.level-switch button.on { background: var(--shu); color: #fff; }
.level-switch button:not(.on):hover { background: var(--hover); }

.level-choice-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap: 8px; max-width: 460px; margin: 0 auto;
}
.level-choice-btn { min-width: 0; padding-inline: 8px; border: 1px solid currentColor; }
.level-choice-btn.n1 { background: var(--tag-n1-bg); color: var(--tag-n1-fg); }
.level-choice-btn.n2 { background: var(--tag-n2-bg); color: var(--tag-n2-fg); }
.level-choice-btn.n3 { background: var(--tag-n3-bg); color: var(--tag-n3-fg); }
.level-choice-btn.n4 { background: var(--tag-n4-bg); color: var(--tag-n4-fg); }
.level-choice-btn.n5 { background: var(--tag-n5-bg); color: var(--tag-n5-fg); }

/* ---------- 布局 ---------- */
main { max-width: 920px; margin: 0 auto; padding: 26px 20px 80px; }
.view { display: none; }
.view.active {
  display: block;
  animation: pageIn var(--game-speed) cubic-bezier(.2,.7,.2,1) both;
}
.view.view-back {
  animation-name: pageInBack;
}
body.is-navigating main {
  pointer-events: none;
}
@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
}
@keyframes pageInBack {
  from { opacity: 0; transform: translateY(-6px); }
}
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }

h2.title {
  font-size: 1.5rem; margin-bottom: 4px; letter-spacing: .01em;
}
.sub { color: var(--ink-2); margin-bottom: 22px; font-size: .92rem; }

/* ---------- 卡片通用 ---------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--shadow);
}

/* ---------- 仪表盘 ---------- */
.grid { display: grid; gap: 14px; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 18px; position: relative; overflow: hidden;
}
.stat::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--shu);
}
.stat .n { font-size: 2rem; font-weight: 800; line-height: 1.1; }
.stat .l { color: var(--ink-2); font-size: .85rem; margin-top: 2px; }
.stat.ai::before { background: var(--ai); }
.stat.green::before { background: var(--green); }
.stat.amber::before { background: var(--amber); }
.stat.shu2::before { background: var(--shu-d); }

/* 听力区块 */
.q-audio { background: var(--surface-2); border-radius: 10px; padding: 12px 14px; margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.cat-badge { font-size: .72rem; padding: 3px 10px; border-radius: 99px; font-weight: 700; }
.cat-badge.listen { background: var(--ai); color: var(--paper); }
.audio-script { flex-basis: 100%; margin-top: 8px; padding-top: 10px;
  border-top: 1px dashed var(--line); color: var(--ink-2); font-size: .92rem; line-height: 1.8; }
.resolved-tag { margin-top: 10px; color: var(--green); font-size: .85rem; font-weight: 600; }

.panel { padding: 20px; margin-top: 18px; }
.panel h3 { font-size: 1.05rem; margin-bottom: 12px; }

.row { display: flex; gap: 14px; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 200px; }

/* ── 学习/练习游戏界面增强 ───────────────────────────────── */
.game-polish {
  position: relative;
}
.game-polish > .title {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.game-polish > .title::before {
  content: "";
  width: 10px; height: 28px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--shu), var(--ai));
  box-shadow: 0 0 0 4px var(--primary-soft);
}
.game-polish > .sub {
  max-width: 720px;
  padding-left: 20px;
  border-left: 2px solid var(--line);
}
.game-polish .card {
  position: relative;
  overflow: hidden;
}
.game-polish .card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--shu), var(--ai), var(--green), var(--amber));
  opacity: .9;
  pointer-events: none;
}
.game-home,
.game-stage,
.quiz-card,
.study-card,
.study-challenge-card {
  animation: cardRise .24s ease both;
}
@keyframes cardRise {
  from { opacity: 0; transform: translateY(8px); }
}
.game-hud {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 9px 12px;
  box-shadow: 0 4px 16px rgba(32,32,29,.05);
}
.game-stage,
.quiz-card {
  border-color: var(--border-strong);
  box-shadow: 0 2px 6px rgba(32,32,29,.06), 0 14px 34px rgba(32,32,29,.08);
}
.game-opts .opt,
.quiz-opts .opt {
  position: relative;
  overflow: hidden;
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease, background .12s ease;
}
.game-opts .opt:hover:not(:disabled),
.quiz-opts .opt:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--shu);
  box-shadow: 0 8px 18px rgba(181,67,42,.12);
}
.game-opts .opt::before,
.quiz-opts .opt::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--ai);
  opacity: 0;
  transition: opacity .12s;
}
.game-opts .opt:hover::before,
.quiz-opts .opt:hover::before,
.game-opts .opt.picked::before,
.quiz-opts .opt.picked::before { opacity: 1; }
.opt.correct {
  box-shadow: 0 0 0 2px rgba(61,122,82,.16), 0 8px 20px rgba(61,122,82,.12);
}
.opt.wrong {
  box-shadow: 0 0 0 2px rgba(179,55,43,.14), 0 8px 20px rgba(179,55,43,.1);
}
.progress {
  height: 9px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(32,32,29,.08);
}
.progress i {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--shu), var(--amber));
  border-radius: inherit;
  transition: width .35s ease;
}

/* ---------- 按钮 ---------- */
.btn {
  border: 0; cursor: pointer; font: inherit; font-weight: 600;
  min-height: 44px;
  padding: 11px 18px; border-radius: var(--game-radius-sm); background: var(--ink); color: var(--paper);
  transition: transform var(--game-speed-fast), opacity var(--game-speed-fast), box-shadow var(--game-speed-fast), border-color var(--game-speed-fast), background var(--game-speed-fast);
  touch-action: manipulation;
}
.btn:active:not(:disabled) { transform: translateY(1px) scale(.985); }
.btn:hover:not(:disabled) { opacity: .94; box-shadow: var(--game-shadow-soft); }
.btn.shu { background: var(--shu); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.sm { padding: 7px 13px; font-size: .85rem; min-height: 36px; }
.btn:disabled { opacity: .5; cursor: default; box-shadow: none; transform: none; }
.btn.loading,
.btn[aria-busy="true"] {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}
.btn.loading::after,
.btn[aria-busy="true"]::after {
  content: "";
  position: absolute; inset: 0; margin: auto;
  width: 16px; height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: #fff;
  animation: btnSpin .75s linear infinite;
}
.btn.ghost.loading::after,
.btn.ghost[aria-busy="true"]::after {
  color: var(--ink);
}
.btn.success { background: var(--success); color: #fff; }
.btn.fail { background: var(--error); color: #fff; }
@keyframes btnSpin { to { transform: rotate(360deg); } }

/* 键盘导航焦点环（鼠标点击不出现） */
.btn:focus-visible, .opt:focus-visible, .grade:focus-visible,
nav.tabs button:focus-visible, .mobile-tabs button:focus-visible,
.pager-btn:focus-visible, .n-btn:focus-visible, .quest-row:focus-visible,
.level-switch button:focus-visible, .stat[role="button"]:focus-visible,
.modal-close:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 2px;
}

/* ---------- 学习卡（主角）---------- */
.flash-wrap { display: grid; place-items: center; min-height: 60vh; min-height: 60dvh; }
.flash {
  width: 100%; max-width: 560px; min-height: 320px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow);
  padding: 40px 34px; position: relative;
  display: flex; flex-direction: column; justify-content: center;
}
.flash::before {
  content: ""; position: absolute; left: 22px; top: 22px; bottom: 22px;
  width: 5px; border-radius: 3px; background: var(--shu);
}
.flash .mode-pill {
  position: absolute; top: 18px; right: 18px;
  font-size: .72rem; padding: 3px 10px; border-radius: 99px;
  background: var(--hover); color: var(--ink-2);
}
.flash .mode-pill.new { background: var(--shu); color: #fff; }
.flash .kanji {
  font-size: 3rem; font-weight: 700; text-align: center; padding-left: 14px;
}
.flash .kana {
  text-align: center; color: var(--shu-d); font-size: 1.15rem;
  margin-top: 8px; padding-left: 14px;
}
.flash .back { margin-top: 20px; padding-left: 14px; display: none; }
.flash.revealed .back { display: block; animation: fade .2s; }
.flash .kana-reveal {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.25rem; color: var(--shu-d); font-weight: 600; margin-bottom: 10px;
}
.flash .meaning { font-size: 1.25rem; font-weight: 600; }
.flash .pos { color: var(--ink-2); font-size: .85rem; margin: 2px 0 14px; }
.flash .ex { color: var(--ink-2); font-size: .95rem; border-top: 1px dashed var(--line); padding-top: 10px; margin-top: 10px; }
.flash .ex .jp { color: var(--ink); }
.flash .ex-row { display: flex; align-items: flex-start; gap: 6px; }
.flash .ex-row .jp { flex: 1; }
.flash .ex-cn { margin-top: 4px; font-size: .88rem; }
.ex-play {
  background: none; border: 1px solid var(--line); border-radius: 6px;
  cursor: pointer; font-size: .85rem; padding: 2px 7px; line-height: 1.6;
  color: var(--ink-2); flex-shrink: 0; transition: color .15s, border-color .15s;
}
.ex-play:hover { color: var(--shu); border-color: var(--shu); }
ruby { ruby-align: center; }
rt { font-size: max(.58em, 10px); color: var(--ink-2); }   /* 注音不低于 10px，手机可辨 */

.flash-actions { margin-top: 22px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.grade { flex: 1; min-width: 90px; max-width: 130px; padding: 12px 8px; border-radius: 11px;
  border: 1px solid var(--line); background: var(--card); cursor: pointer; font: inherit;
  display: flex; flex-direction: column; align-items: center; gap: 2px; }
.grade b { font-size: .95rem; }
.grade small { font-size: .72rem; color: var(--ink-2); }
.grade:hover { border-color: var(--ink); }
.grade.again b { color: var(--shu); }
.grade.good  b { color: var(--green); }
.grade.easy  b { color: var(--ai); }

.progress { height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; margin-bottom: 18px; }
.progress > i { display: block; height: 100%; background: var(--shu); width: 0; transition: width .3s; }

/* ---------- 列表浏览 ---------- */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-2); font-weight: 600; font-size: .82rem; }
tr:hover td { background: var(--hover); }
td .k { font-weight: 600; }
td .r { color: var(--shu-d); font-size: .85rem; }

/* 移动端：词库表格 → 卡片，长文本(例句/语法接续)独占整行横排，避免被挤成竖排 */
@media (max-width: 768px) {
  #browseTable table,
  #browseTable tbody { display: block; width: 100%; }
  #browseTable thead { display: none; }
  #browseTable tr {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "word  state"
      "read  act"
      "mean  mean"
      "ex    ex";
    align-items: center;
    gap: 4px 10px;
    padding: 12px 14px;
    margin-bottom: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--card);
    box-shadow: var(--shadow);
  }
  #browseTable td { display: block; border: none; padding: 0; }
  #browseTable tr:hover td { background: transparent; }
  #browseTable .c-word  { grid-area: word; align-self: end; }
  #browseTable .c-word .k { font-size: 1.4rem; line-height: 1.25; }
  #browseTable .c-read  { grid-area: read; align-self: start; font-size: .9rem; }
  #browseTable .c-read:empty { display: none; }
  #browseTable .c-mean  { grid-area: mean; color: var(--ink); font-size: .9rem; margin-top: 2px; }
  #browseTable .c-ex    { grid-area: ex; font-size: .95rem; line-height: 1.7; margin-top: 2px; }
  #browseTable .c-ex:empty { display: none; }
  #browseTable .c-state { grid-area: state; justify-self: end; align-self: center; }
  #browseTable .c-act   { grid-area: act; justify-self: end; align-self: center; }
}

/* 词库工具栏 */
.browse-topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px; flex-wrap: wrap;
}
.browse-search {
  flex: 1; min-width: 180px; max-width: 300px;
  padding: 7px 12px; border: 1px solid var(--line); border-radius: 9px;
  font: inherit; font-size: 16px; background: var(--card); color: var(--ink);
  outline: none;   /* 16px：低于 16px iOS 聚焦会自动放大页面 */
}
.browse-search:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--focus); }

/* SRS 状态 pill */
.srs-pill {
  display: inline-block; font-size: .7rem; font-weight: 700;
  padding: 2px 8px; border-radius: 99px; white-space: nowrap;
}
.srs-new      { background: var(--surface-2); color: var(--ink-2); }
.srs-learning { background: var(--warning-soft); color: var(--warning-text); }
.srs-mastered { background: var(--success-soft); color: var(--success-text); }

/* 分页 */
.browse-pager {
  display: flex; justify-content: center; gap: 4px; margin-top: 14px; flex-wrap: wrap;
}
.pager-btn {
  border: 1px solid var(--line); background: var(--card); cursor: pointer;
  font: inherit; font-size: .85rem; padding: 5px 11px; border-radius: 8px; color: var(--ink);
  min-height: 44px; min-width: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.pager-btn:hover:not(:disabled) { border-color: var(--ink); }
.pager-btn.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pager-btn:disabled { opacity: .35; cursor: default; }
.pager-ellipsis { padding: 5px 4px; color: var(--ink-2); font-size: .85rem; }

/* ---------- 练习 / 考试 ---------- */
.q-passage { background: var(--surface-2); border-left: 3px solid var(--ai); padding: 14px 16px;
  border-radius: 8px; margin-bottom: 14px; font-size: .95rem; }
.q-stem { font-size: 1.1rem; font-weight: 600; margin-bottom: 14px; }
.opt { position: relative; display: block; width: 100%; min-height: 44px; text-align: left; padding: 13px 44px 13px 16px; margin-bottom: 9px;
  border: 1px solid var(--line); border-radius: 11px; background: var(--card);
  cursor: pointer; font: inherit; transition: transform .12s, border-color .12s, background .12s, box-shadow .12s; }
.opt:hover:not(:disabled) { border-color: var(--ink); }
.opt:active:not(:disabled) { transform: scale(.99); }
.opt.correct { border-color: var(--green); background: var(--success-soft); }
.opt.wrong   { border-color: var(--error);  background: var(--error-soft); }
.opt:disabled { cursor: default; }
.opt.correct::after,
.opt.wrong::after {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 900; font-size: .8rem;
}
.opt.correct::after {
  content: "OK";
  color: var(--success-text);
  background: rgba(61,122,82,.13);
}
.opt.wrong::after {
  content: "X";
  color: var(--error-text);
  background: rgba(179,55,43,.12);
}
/* 考试模式：已选中但未判分的选项，明显标出 */
.opt.picked {
  border-color: var(--shu);
  background: var(--primary-soft);
  font-weight: 600;
  box-shadow: inset 0 0 0 1px var(--shu);
}
.opt.anim-correct { animation: optPop .4s ease; }
.opt.anim-wrong   { animation: optShake .4s ease; }
@keyframes optPop { 0% { transform: scale(1); } 40% { transform: scale(1.035); } 100% { transform: scale(1); } }
@keyframes optShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); } 40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); } 80% { transform: translateX(4px); }
}

/* ---------- 连击提示 ---------- */
.combo-pop {
  position: fixed; top: 16%; left: 50%;
  font-size: 1.5rem; font-weight: 800; color: var(--shu);
  background: var(--card); border: 2px solid var(--shu); border-radius: 999px;
  padding: 8px 24px; box-shadow: var(--shadow);
  z-index: 999; pointer-events: none; white-space: nowrap;
  animation: comboIn .25s ease forwards, comboOut .25s ease .65s forwards;
}
@keyframes comboIn {
  from { opacity: 0; transform: translate(-50%, -40%) scale(.6); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
@keyframes comboOut {
  to { opacity: 0; transform: translate(-50%, -62%) scale(.9); }
}

/* 评分后「下次复习」浮层（复用 combo 的进出场动画） */
.srs-next-pop {
  position: fixed; top: 24%; left: 50%;
  font-size: .92rem; font-weight: 700; color: var(--ink);
  background: var(--card); border: 1.5px solid var(--line); border-radius: 999px;
  padding: 7px 18px; box-shadow: var(--shadow);
  z-index: 999; pointer-events: none; white-space: nowrap;
  animation: comboIn .22s ease forwards, comboOut .3s ease 1.1s forwards;
}
.srs-next-pop.redo { color: var(--shu); border-color: var(--shu); }

/* 学完总结页 */
.sess-circle {
  width: 128px; height: 128px; margin: 4px auto 16px; border-radius: 50%;
  border: 6px solid var(--shu); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2px;
}
.sess-circle b { font-size: 2rem; line-height: 1; }
.sess-circle span { font-size: .78rem; color: var(--ink-2); }
.sess-stats { display: flex; gap: 10px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.sess-stat {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 18px; min-width: 96px;
}
.sess-stat span { font-size: 1.1rem; }
.sess-stat b { display: block; font-size: 1.02rem; margin: 2px 0; }
.sess-stat small { color: var(--ink-2); font-size: .75rem; }
.explain { margin-top: 6px; padding: 13px 16px; background: var(--surface-2); border-radius: 10px;
  font-size: .9rem; color: var(--ink-2); display: none; }
.explain.show { display: block; animation: fade .2s; }

/* ---------- 登录 ---------- */
.auth-wrap { min-height: 80vh; min-height: 80dvh; display: grid; place-items: center; }
.auth { width: 100%; max-width: 380px; padding: 32px; }
.auth h2 { text-align: center; margin-bottom: 4px; }
.auth .sub { text-align: center; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .85rem; color: var(--ink-2); margin-bottom: 5px; }
.field input { width: 100%; padding: 11px 13px; border: 1px solid var(--line);
  border-radius: 10px; font: inherit; background: var(--card); }
.field input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--focus); }
.auth .btn { width: 100%; margin-top: 4px; }
.switch { text-align: center; margin-top: 14px; font-size: .88rem; color: var(--ink-2); }
.switch a { color: var(--shu); cursor: pointer; font-weight: 600; }

.empty { text-align: center; padding: 50px 20px; color: var(--ink-2); }
.empty .big { font-size: 2.4rem; margin-bottom: 8px; }
.msg { color: var(--error); font-size: .85rem; min-height: 20px; margin-top: 6px; text-align: center; }

/* 新增/编辑时的实时查重提示 */
.dup-hint:empty { display: none; }
.dup-warn { margin-top: 6px; padding: 8px 11px; border-radius: 8px;
  font-size: .82rem; line-height: 1.7; color: var(--amber);
  background: var(--accent-soft); border: 1px solid var(--amber); }

.result-banner { padding: 22px; text-align: center; margin-bottom: 18px; }
.result-banner .score { font-size: 2.6rem; font-weight: 800; }
.result-banner .verdict { color: var(--ink-2); }

@media (max-width: 680px) {
  .grid { grid-template-columns: 1fr 1fr; }
  nav.tabs { display: none; }
  .bar-yobi { display: none; }  /* 考试历史窄柱下放不下（曜），回退纯日期；完整信息仍在 title */
  header.topbar { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
  header.topbar .brand { order: 1; flex: 1 1 auto; min-width: 0; }
  header.topbar #langBtn { order: 2; margin-left: 0 !important; }
  header.topbar .level-switch {
    order: 3; flex: 1 0 100%; width: 100%;
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  header.topbar .level-switch button { min-width: 0; min-height: 44px; padding: 7px 4px; }
  header.topbar .userbox {
    order: 4;
    flex: 1 0 100%; min-width: 0; max-width: 100%;
    justify-content: flex-end; gap: 6px;
  }
  header.topbar .userbox .who {
    min-width: 0; max-width: min(28vw, 96px);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  header.topbar .user-title { display: none; }
  .brand .tag { display: none; }                      /* 窄屏隐副标题，省首屏高度 */
  .ex-play { padding: 9px 12px; font-size: 1rem; }    /* 🔊 高频钮抬到 ~40px 触控区 */
  .btn.sm { padding: 9px 14px; }                      /* 音效/朗读/振仮名等开关触控区抬高 */
  /* 底部标签条已退役（入口收进右上角 ☰）；Toast 贴底但让出 iPhone Home 条 */
  #toastWrap { bottom: calc(24px + env(safe-area-inset-bottom)); }
}
/* 底部标签条(.mobile-tabs)已退役：手机入口统一走顶栏右上角「☰」按钮 + 底部抽屉 */

/* ── 顶栏右上角「☰ 菜单」按钮：只在手机出现（桌面有整排 tabs）────── */
.nav-menu-btn {
  display: none; border: 1px solid var(--line); background: var(--card); color: var(--ink);
  width: 44px; height: 44px; border-radius: 10px; font: inherit; font-size: 1.15rem;
  cursor: pointer; touch-action: manipulation; padding: 0;
}
@media (max-width: 1680px) {
  nav.tabs { display: none; }
  header.topbar { gap: 10px; }
  header.topbar .brand { min-width: 0; }
  header.topbar .brand .tag { white-space: nowrap; }
  header.topbar .level-switch,
  header.topbar .userbox { flex: 0 0 auto; }
  .nav-menu-btn { display: inline-grid; place-items: center; }
}
@media (min-width: 681px) and (max-width: 900px) {
  header.topbar .brand .tag,
  header.topbar .userbox .who,
  header.topbar .user-title { display: none; }
}
@media (max-width: 680px) { .nav-menu-btn { display: inline-grid; place-items: center; } }
.nav-sheet-overlay {
  position: fixed; inset: 0; z-index: 1200;
  background: rgba(0,0,0,.45);
  display: flex; align-items: flex-end;
}
.nav-sheet {
  width: 100%; background: var(--card);
  border-radius: 20px 20px 0 0;
  padding: 16px 16px calc(16px + env(safe-area-inset-bottom));
  max-height: 75vh; max-height: 75dvh; overflow-y: auto;
  box-shadow: 0 -12px 40px rgba(0,0,0,.28);
  animation: navSheetUp .22s ease;
}
@keyframes navSheetUp { from { transform: translateY(28px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .nav-sheet { animation: none; } }
.nav-sheet-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.nav-sheet-grid button {
  min-height: 52px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--card); font: inherit; font-size: .95rem; color: var(--ink);
  cursor: pointer; touch-action: manipulation;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.nav-sheet-grid .nav-ico { font-size: 1.2rem; line-height: 1; }
.nav-sheet-grid button.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.nav-menu-btn svg { display: block; }
@media (min-width: 681px) and (max-width: 1680px) {
  .nav-sheet { max-width: 760px; margin: 0 auto; }
  .nav-sheet-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ============================================================
   UX 增强 v2
   ============================================================ */

/* ── 深色模式：只翻转设计令牌，组件规则自动跟随 ──────────── */
body.dark {
  --primary:        #d15a3f;
  --primary-strong: #de8168;
  --primary-soft:   #3a241e;
  --secondary:      #7fa4ba;
  --secondary-soft: #253540;
  --accent:         #d9b04a;
  --accent-soft:    #362e18;

  --bg:        #161519;
  --surface:   #1f1e22;
  --surface-2: #27252b;
  --hover:     #2d2b32;
  --border:        #36333b;
  --border-strong: #4e4a54;
  --text-1: #e7e2d5;
  --text-2: #a29c8e;
  --text-3: #757064;

  --success:      #4f8d66;  --success-soft: #203228;  --success-text: #90cfa7;
  --warning:      #c9a23c;  --warning-soft: #352d15;  --warning-text: #dcbb60;
  --error:        #dd6c57;  --error-soft:   #3a201b;  --error-text:   #e58a77;

  --focus: rgba(209, 90, 63, .5);
  --hm-1: #45231c;  --hm-2: #8a3d29;

  --tag-n1-bg: #2d2547;  --tag-n1-fg: #c3b2f2;
  --tag-n2-bg: #1f2c45;  --tag-n2-fg: #9dc0f7;
  --tag-n3-bg: #173730;  --tag-n3-fg: #82cdbb;
  --tag-n4-bg: #26351e;  --tag-n4-fg: #afd18f;
  --tag-n5-bg: #3a2f1b;  --tag-n5-fg: #e7c273;
  --tag-rd-bg: #17303b;  --tag-rd-fg: #84c8e8;
  --tag-ls-bg: #38202c;  --tag-ls-fg: #ea9cc4;

  --shadow: 0 1px 3px rgba(0,0,0,.5), 0 8px 24px rgba(0,0,0,.6);
}
body.dark .field input,
body.dark .field textarea,
body.dark .field select,
body.dark .filter-select { background: var(--surface-2); color: var(--ink); }

/* ── 加载进度条 ───────────────────────────────────────────── */
#loadBar {
  position: fixed; top: 0; left: 0; right: 0; height: 3px;
  background: var(--shu); z-index: 2000; width: 0; opacity: 0;
  transition: width .3s ease, opacity .3s ease;
  pointer-events: none;
}

/* ── Toast 通知 ───────────────────────────────────────────── */
#toastWrap {
  position: fixed; bottom: 24px; right: 24px; z-index: 1500;
  display: flex; flex-direction: column; gap: 8px;
  align-items: flex-end; pointer-events: none;
}
.toast {
  padding: 12px 20px; border-radius: 10px; font-size: .88rem;
  font-weight: 500; color: var(--paper); background: var(--ink);
  box-shadow: 0 4px 20px rgba(0,0,0,.25);
  animation: toastIn .2s ease;
  pointer-events: auto; max-width: 300px; cursor: pointer;
}
.toast.success { background: var(--success-solid); }
.toast.error   { background: var(--error-solid); }
.toast.warn    { background: var(--warning-solid); }
.toast.success, .toast.error, .toast.warn { color: #fff; }
@keyframes toastIn  { from { opacity:0; transform:translateY(8px); } }
@keyframes toastOut { to   { opacity:0; transform:translateY(8px); } }

/* ── 模态框 ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 1000; display: grid; place-items: center; padding: 20px;
}
.modal-overlay[hidden] { display: none; }
.modal-box {
  background: var(--card); border-radius: var(--r);
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
  width: 100%; max-width: 620px;
  max-height: 90vh; max-height: 90dvh; overflow-y: auto;
  position: relative; padding: 28px;
}
.modal-close {
  position: absolute; top: 8px; right: 10px;
  border: 0; background: none; font-size: 1.4rem; line-height: 1;
  cursor: pointer; color: var(--ink-2);
  width: 44px; height: 44px; border-radius: 8px;
  display: grid; place-items: center;
}
.modal-close:hover { background: var(--line); }
.modal-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 18px; }

/* ── 表单通用扩展 ─────────────────────────────────────────── */
.form-grid { display: grid; gap: 14px; }
.form-row  { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.field textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; font: inherit; font-size: .9rem;
  background: var(--card); color: var(--ink);
  resize: vertical; min-height: 80px;
}
.field select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 10px; font: inherit; background: var(--card); color: var(--ink);
}
.field textarea:focus,
.field select:focus,
.field input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--focus); }

.opts-grid { display: grid; gap: 8px; }
.opt-row { display: grid; grid-template-columns: 24px 1fr; align-items: center; gap: 8px; }
.opt-row label { font-weight: 700; font-size: .88rem; color: var(--ink-2); }

.filter-select {
  padding: 7px 12px; border-radius: 8px; border: 1px solid var(--line);
  font: inherit; font-size: .85rem; background: var(--card); color: var(--ink);
  cursor: pointer; min-height: 44px;
}
.filter-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--focus); }

/* ── 仪表盘进度条 ─────────────────────────────────────────── */
.prog-row {
  display: flex; align-items: center; gap: 12px; margin-top: 14px;
}
.prog-label { font-size: .85rem; color: var(--ink-2); min-width: 2.6em; }
.prog-bar-wrap {
  flex: 1; height: 8px; background: var(--line); border-radius: 99px; overflow: hidden;
}
.prog-fill {
  height: 100%; background: var(--shu); border-radius: 99px;
  transition: width .6s cubic-bezier(.4,0,.2,1);
}
.prog-num { font-size: .85rem; white-space: nowrap; font-variant-numeric: tabular-nums; }
.prog-num .pct { color: var(--ink-2); }

/* ── 合格概率仪表盘 ───────────────────────────────────────── */
.pass-gauge { position: relative; width: 200px; max-width: 100%; margin: 8px auto 2px; }
.pass-arc { display: block; width: 100%; height: auto; }
.pass-arc path:last-child { transition: stroke-dasharray .7s cubic-bezier(.4,0,.2,1); }
.pass-num {
  position: absolute; left: 0; right: 0; bottom: 2px; text-align: center;
  font-size: 2.1rem; font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums;
}
.pass-num .pass-pct { font-size: 1rem; font-weight: 700; margin-left: 1px; }
.pass-sub { text-align: center; font-size: .82rem; color: var(--ink-2); margin-top: 4px; }
.pass-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 8px;
  margin-top: 8px; font-size: .84rem; color: var(--ink);
}
.pass-meta .pass-dot { color: var(--ink-2); }
.pass-skew {
  margin-top: 12px; padding: 8px 12px; border-radius: 12px;
  background: var(--amber-soft, rgba(245,158,11,.12)); color: var(--amber);
  font-size: .82rem; text-align: center;
}
.pass-pro {
  display: block; width: 100%; margin-top: 12px; padding: 10px 12px;
  border: 1px dashed var(--shu); border-radius: 12px; background: transparent;
  color: var(--shu); font-size: .86rem; font-weight: 600; cursor: pointer;
  transition: background .15s;
}
.pass-pro:hover { background: var(--shu-soft, rgba(217,70,58,.08)); }
.pass-note { margin-top: 10px; text-align: center; font-size: .74rem; color: var(--ink-2); opacity: .8; }

/* ── 挑战链接（同题对战）─────────────────────────────────────── */
.btn.shu2 { background: var(--shu-d, #b23a2e); color: #fff; }
.chal-intro, .chal-result { text-align: center; max-width: 520px; margin: 0 auto; }
.chal-badge { font-size: 2.6rem; line-height: 1; }
.chal-h { font-size: 1.3rem; font-weight: 800; margin: 6px 0 2px; }
.chal-from { color: var(--ink-2); font-size: .9rem; margin-bottom: 12px; }
.chal-score-big { font-size: 2.4rem; font-weight: 800; color: var(--shu); font-variant-numeric: tabular-nums; }
.chal-score-big span { font-size: 1.2rem; color: var(--ink-2); font-weight: 700; }
.chal-score-big small { font-size: 1rem; color: var(--ink-2); font-weight: 600; }
.chal-meta { color: var(--ink-2); font-size: .84rem; margin: 8px 0 18px; }
.chal-skip { color: var(--ink-2); font-size: .85rem; cursor: pointer; text-decoration: underline; }
.chal-verdict { font-size: 1.6rem; font-weight: 800; margin-bottom: 16px; }
.chal-verdict.win { color: var(--green); }
.chal-verdict.tie { color: var(--amber); }
.chal-verdict.lose { color: var(--shu); }
.chal-vs { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 14px; }
.chal-vs-side { flex: 1; max-width: 160px; padding: 14px 10px; border: 1px solid var(--line); border-radius: 16px; }
.chal-vs-side.me { border-color: var(--shu); background: var(--shu-soft, rgba(217,70,58,.06)); }
.chal-vs-label { font-size: .82rem; color: var(--ink-2); margin-bottom: 4px; word-break: break-word; }
.chal-vs-score { font-size: 1.7rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.chal-vs-pct { font-size: .82rem; color: var(--ink-2); }
.chal-vs-mid { font-size: 1rem; font-weight: 800; color: var(--ink-2); }
.chal-result .btn { margin-top: 8px; }
.chal-result .btn.listen-big { display: block; width: 100%; }

/* ── 到期复习提醒（in-app）───────────────────────────────────── */
.due-remind {
  border-left: 4px solid var(--amber);
  background: var(--amber-soft, rgba(245,158,11,.10));
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
}
.due-remind-row { display: flex; align-items: center; gap: 12px; flex: 1; min-width: 220px; }
.due-remind-ico { font-size: 1.6rem; line-height: 1; }
.due-remind-txt { display: flex; flex-direction: column; gap: 2px; }
.due-remind-txt b { font-size: 1rem; }
.due-remind-txt span { font-size: .84rem; color: var(--ink-2); }
.due-remind-actions { display: flex; align-items: center; gap: 8px; }

/* ── 错题闪卡 ─────────────────────────────────────────────── */
.mistake-flash {
  width: 100%; max-width: 560px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow);
  padding: 30px 28px; position: relative;
}
.mistake-flash::before {
  content: ""; position: absolute; left: 22px; top: 22px; bottom: 22px;
  width: 5px; border-radius: 3px; background: var(--shu);
}
.mistake-flash .opts { display: flex; flex-direction: column; gap: 8px; }

/* ── 模拟考板块 ─────────────────────────────────────────────── */
.exam-sec-hdr {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0 8px;
  border-bottom: 2px solid var(--ink);
  margin: 28px 0 16px;
  font-weight: 700; font-size: 1rem; letter-spacing: .02em;
}
.exam-sec-hdr:first-child { margin-top: 0; }
.sec-count { font-size: .8rem; color: var(--ink-2); font-weight: 400; }

.sec-breakdown {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin-top: 14px;
}
.sec-score {
  font-size: .82rem; font-weight: 600; padding: 4px 12px;
  border-radius: 99px;
}
.sec-score.ok { background: var(--success-soft); color: var(--success-text); }
.sec-score.ng { background: var(--error-soft); color: var(--error-text); }

/* ── 管理后台 ─────────────────────────────────────────────── */
.admin-subnav { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }
.admin-subnav button {
  border: 0; padding: 8px 18px; border-radius: 8px; cursor: pointer;
  min-height: 44px; font: inherit; font-size: .88rem;
  background: var(--line); color: var(--ink-2); font-weight: 600;
}
.admin-subnav button.active { background: var(--ink); color: var(--paper); }
.admin-subnav button:hover:not(.active) { opacity: .8; }

.admin-stats-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px; margin-bottom: 20px;
}
.admin-stat-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 16px 18px;
}
.admin-stat-card .label { font-size: .8rem; color: var(--ink-2); margin-bottom: 4px; }
.admin-stat-card .value { font-size: 1.9rem; font-weight: 800; }
.admin-stat-card.hot { border-color: var(--shu); }
.admin-stat-card.hot .value { color: var(--shu); }
.admin-stat-card .sub-v { font-size: 1rem; font-weight: 600; color: var(--ink-2); }

/* 后台：14 天迷你趋势柱状图 */
.mini-trend { display: flex; align-items: flex-end; gap: 4px; height: 96px; }
.mt-col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 2px; min-width: 0; }
.mt-bar { width: 100%; max-width: 22px; background: var(--shu); border-radius: 3px 3px 0 0; }
.mt-n { font-size: .62rem; color: var(--ink-2); line-height: 1; }
.mt-d { font-size: .6rem; color: var(--ink-2); }

.admin-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.admin-table th,
.admin-table td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.admin-table th { font-size: .78rem; color: var(--ink-2); font-weight: 600; }
.admin-table tr:hover td { background: var(--hover); }

.badge {
  display: inline-block; padding: 2px 8px; border-radius: 99px;
  font-size: .74rem; font-weight: 700; white-space: nowrap;
}
.badge.n1        { background: var(--tag-n1-bg); color: var(--tag-n1-fg); }
.badge.n2        { background: var(--tag-n2-bg); color: var(--tag-n2-fg); }
.badge.n3        { background: var(--tag-n3-bg); color: var(--tag-n3-fg); }
.badge.n4        { background: var(--tag-n4-bg); color: var(--tag-n4-fg); }
.badge.n5        { background: var(--tag-n5-bg); color: var(--tag-n5-fg); }
.badge.vocab     { background: var(--warning-soft); color: var(--warning-text); }
.badge.grammar   { background: var(--success-soft); color: var(--success-text); }
.badge.reading   { background: var(--tag-rd-bg); color: var(--tag-rd-fg); }
.badge.listening { background: var(--tag-ls-bg); color: var(--tag-ls-fg); }

.level-content-card .label { display: flex; align-items: center; gap: 7px; }
.level-content-card .level-grammar-count { margin-top: 2px; color: var(--ink-2); font-size: .78rem; }

.shu-txt { color: var(--shu) !important; }

/* ── 模拟考步进器 ─────────────────────────────────────────── */
.exam-topbar {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 10px; margin-bottom: 18px;
}
.exam-topbar .exam-stepper { margin-bottom: 0; flex: 1; }
#examExitBtn { flex: 0 0 auto; white-space: nowrap; }
.exam-stepper {
  display: flex; align-items: center; gap: 4px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.exam-step {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 99px;
  font-size: .82rem; font-weight: 600; color: var(--ink-2);
  background: var(--line); transition: background .2s, color .2s;
}
.exam-step.active { background: var(--ink); color: var(--paper); }
.exam-step.done   { background: var(--success-soft); color: var(--success-text); }
.step-num {
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(255,255,255,.25); display: inline-flex;
  align-items: center; justify-content: center; font-size: .75rem;
}
.exam-step.active .step-num { background: rgba(255,255,255,.3); }
.step-lbl { max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.step-arrow { color: var(--ink-2); font-size: 1.1rem; }

/* ── 练习视图工具栏 ─────────────────────────────────────────── */
.quiz-toolbar {
  display: flex; flex-wrap: wrap; gap: 10px;
  align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.quiz-cats { display: flex; flex-wrap: wrap; gap: 6px; }
.quiz-n-row { display: flex; align-items: center; gap: 4px; }
.n-btn {
  border: 1px solid var(--line); background: var(--card);
  border-radius: 8px; padding: 4px 12px; cursor: pointer;
  font: inherit; font-size: .82rem; color: var(--ink-2);
  min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
}
.n-btn.active { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.n-btn:hover:not(.active) { border-color: var(--ink-2); }

.exam-sec-bar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 18px; flex-wrap: wrap;
}

/* ── 考试计时器（倒计时）────────────────────────────────── */
.exam-timer {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 16px; background: var(--card);
  border: 1px solid var(--line); border-radius: 99px;
  font-weight: 700; font-size: .92rem; color: var(--ink-2);
  transition: color .3s, border-color .3s, background .3s;
  font-variant-numeric: tabular-nums;
}
.exam-timer.warn   { color: var(--warning); border-color: var(--warning); }
.exam-timer.danger { color: var(--error); border-color: var(--error); background: var(--error-soft);
                     animation: pulse .8s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity:1 } 50% { opacity:.6 } }

/* ── 模拟考成绩横幅增强 ───────────────────────────────────── */
.result-banner.pass { background: linear-gradient(135deg, var(--success-soft), var(--surface)); }
.pct-bar {
  height: 8px; background: var(--line); border-radius: 99px;
  overflow: hidden; margin: 12px 0;
}
.pct-bar > div { height: 100%; border-radius: 99px; transition: width .6s ease; }

.sec-results { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; text-align: left; }
.sec-result-row {
  display: flex; align-items: center; gap: 10px; font-size: .88rem;
}
.sec-result-label { min-width: 130px; font-weight: 500; }
.sec-result-bar {
  flex: 1; height: 6px; background: var(--line); border-radius: 99px; overflow: hidden;
}
.sec-result-bar > div { height: 100%; border-radius: 99px; transition: width .5s ease; }

/* ── 仪表盘热图 ────────────────────────────────────────────── */
.heatmap {
  display: flex; flex-wrap: wrap; gap: 4px; margin: 12px 0 8px;
}
.hm-cell {
  width: 18px; height: 18px; border-radius: 4px;
  background: var(--line); transition: transform .1s;
}
.hm-cell:hover { transform: scale(1.3); cursor: default; }
.hm-cell.lv1 { background: var(--hm-1); }
.hm-cell.lv2 { background: var(--hm-2); }
.hm-cell.lv3 { background: var(--shu); }
.hm-cell.hm-today { outline: 2px solid var(--ink); outline-offset: 1px; }
.hm-legend {
  display: flex; align-items: center; gap: 4px; margin-top: 4px;
}
.hm-legend .hm-cell { width: 14px; height: 14px; }

/* ── 学习卡键盘提示 ───────────────────────────────────────── */
.study-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px; font-size: .83rem; color: var(--ink-2);
}
.kbd-hint { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
kbd.kbd {
  display: inline-block; padding: 1px 5px;
  border: 1px solid var(--line); border-radius: 4px;
  font-family: monospace; font-size: .75rem; background: var(--paper);
  color: var(--ink-2); line-height: 1.4;
}

/* ── 学习卡背面动画 ───────────────────────────────────────── */
.flash .back { animation: revealBack .22s ease; }
@keyframes revealBack { from { opacity:0; transform:translateY(6px); } }

/* ── 视图切换动画（覆盖原来的 fade）─────────────────────── */
@keyframes fade { from { opacity:0; transform:translateY(5px); } }

/* ── 交卷按钮区域 sticky ──────────────────────────────────── */
.submit-sticky {
  position: sticky; bottom: 0; padding: 14px 0 6px;
  background: var(--paper); text-align: center;
}

/* ── 打卡 streak + 进度环 ─────────────────────────────────── */
.streak-layout {
  display: flex; align-items: center; gap: 20px;
}
.streak-ring-wrap {
  position: relative; width: 80px; height: 80px; flex-shrink: 0;
}
.streak-ring {
  width: 80px; height: 80px;
}
.streak-ring circle:last-child {
  transition: stroke-dasharray .5s ease;
}
.streak-ring-label {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  line-height: 1.1;
}
.streak-ring-n  { font-size: 1.4rem; font-weight: 700; color: var(--shu); }
.streak-ring-sub { font-size: .65rem; color: var(--ink-2); }
.streak-info    { display: flex; flex-direction: column; gap: 4px; }
.streak-flame   { font-size: 1.05rem; }
.streak-sub     { font-size: .82rem; color: var(--ink-2); }
.streak-done    { font-size: .82rem; color: var(--green); font-weight: 600; }

/* ── 薄弱项分析 ───────────────────────────────────────────── */
.weak-row {
  display: grid;
  grid-template-columns: 6rem 1fr 7rem;
  align-items: center; gap: 10px;
  padding: 6px 0; border-bottom: 1px solid var(--line);
}
.weak-row:last-child { border-bottom: none; }
.weak-cat  { font-size: .85rem; color: var(--ink-2); }
.weak-bar-wrap { height: 8px; background: var(--line); border-radius: 4px; overflow: hidden; }
.weak-bar  { height: 100%; border-radius: 4px; transition: width .4s ease; }
.weak-num  { font-size: .8rem; color: var(--ink-2); text-align: right; }

/* ── 成就徽章 ─────────────────────────────────────────────── */
.ach-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}
.ach-badge {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 4px; padding: 14px 8px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--paper);
}
.ach-badge.earned { border-color: var(--amber); background: var(--accent-soft); }
.ach-badge.locked { opacity: .5; filter: grayscale(1); }
.ach-icon { font-size: 1.8rem; line-height: 1; }
.ach-name { font-size: .82rem; font-weight: 600; }
.ach-date { font-size: .72rem; color: var(--ink-2); }
.yobi-red { color: var(--shu); }  /* 日曜・祝日の朱色（日期后缀用） */
body.dark .yobi-red { color: var(--shu-d); }  /* 深色下提亮，保 AA 对比度 */

/* ── 考试倒计时 ───────────────────────────────────────────── */
.countdown-wrap {
  display: flex; align-items: baseline; gap: 12px;
  flex-wrap: wrap; margin-bottom: 14px;
}
.countdown-days { line-height: 1; }
.countdown-n    { font-size: 2.4rem; font-weight: 700; color: var(--shu); }
.countdown-unit { font-size: 1rem; color: var(--ink-2); }
.countdown-sub  { font-size: .85rem; color: var(--ink-2); flex-basis: 100%; }
.countdown-target { font-size: .85rem; color: var(--ink-2); flex-basis: 100%; margin-top: -8px; }
.countdown-set  { padding-top: 12px; border-top: 1px solid var(--line); }
.exam-date-input {
  padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; background: var(--card);
  color: var(--ink); flex: 1;
}
.exam-date-input:focus { outline: none; border-color: var(--shu); }

/* ── 响应式补丁 ───────────────────────────────────────────── */
@media (max-width: 520px) {
  .form-row { grid-template-columns: 1fr; }
  .modal-box { padding: 20px 16px; }
  .study-meta .kbd-hint { display: none; }
  .streak-layout { gap: 14px; }
  .weak-row { grid-template-columns: 5rem 1fr 6rem; }
}

/* ── 例句填空 ─────────────────────────────────────────────── */
.cloze-sent { font-size: 1.18rem; line-height: 2; margin: 4px 0 16px; }
.cloze-blank {
  display: inline-block; min-width: 3.2em; text-align: center;
  border-bottom: 2px solid var(--shu); color: var(--shu); font-weight: 700;
}
.cloze-blank.ok { color: var(--green); border-bottom-color: var(--green); }
.cloze-blank.ng { color: var(--shu); }
.cloze-answer { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); }
.cloze-answer .jp { margin-top: 6px; }
.cloze-why {
  text-align: left; font-size: .92rem; border-radius: 10px;
  padding: 10px 12px; margin-bottom: 12px; background: rgba(200, 71, 43, .06);
  border: 1px solid rgba(200, 71, 43, .25);
}
.cloze-why .why-row { margin: 2px 0; }
.cloze-why .why-row.bad  { color: var(--shu); }
.cloze-why .why-row.good { color: var(--green); }
.cloze-why .why-tip { color: var(--ink-2); font-size: .82rem; margin-top: 4px; }
.cloze-wrap-list { text-align: left; font-size: .9rem; margin-top: 4px; }
.cloze-wrong-row {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: baseline;
  padding: 6px 0; border-bottom: 1px dashed var(--line);
}

/* ── 听写猜词 ─────────────────────────────────────────────── */
.listen-play { display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; }
.listen-big { font-size: 1.15rem; padding: 16px 32px; }
.listen-big:active { transform: scale(.97); }

/* ── 指定视图细节增强：学习 / 词库 / 练习 / 填空 / 听写 ───── */
#view-study .progress {
  height: 9px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 2px rgba(32,32,29,.08);
}
#view-study .progress > i {
  background: linear-gradient(90deg, var(--shu), var(--amber));
  box-shadow: 0 0 12px rgba(181,67,42,.28);
}
.study-card {
  border-color: var(--border-strong);
  background:
    linear-gradient(180deg, rgba(255,255,255,.38), transparent 32%),
    var(--card);
  box-shadow: 0 2px 6px rgba(32,32,29,.06), 0 18px 42px rgba(32,32,29,.1);
}
.study-card::after {
  content: "";
  position: absolute; inset: 18px;
  border: 1px solid rgba(181,67,42,.08);
  border-radius: 16px;
  pointer-events: none;
}
.study-card.revealed {
  border-color: var(--shu);
}
.study-card.revealed .kanji {
  color: var(--shu);
  text-shadow: 0 6px 22px rgba(181,67,42,.16);
}
.study-front-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.study-front-line .kanji {
  margin: 0;
}
.study-front-play {
  min-width: 44px;
  min-height: 44px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: var(--game-shadow-soft);
}
.ex-play.is-playing {
  color: var(--shu);
  border-color: var(--shu);
  background: var(--primary-soft);
}
.study-challenge-card {
  box-shadow: 0 2px 6px rgba(32,32,29,.06), 0 16px 38px rgba(32,32,29,.09);
}
.study-empty,
.study-complete {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: var(--shadow);
}
.study-complete .sess-circle {
  background: var(--primary-soft);
  box-shadow: 0 0 0 8px rgba(181,67,42,.08);
}
.browse-topbar,
.quiz-toolbar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 4px 16px rgba(32,32,29,.05);
}
.browse-table-card {
  border-color: var(--border-strong);
}
.browse-table-card table thead {
  background: var(--surface-2);
}
#browseTable tr {
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
#browseTable tr:hover {
  transform: translateY(-1px);
}
#browseTable tr:hover td {
  background: rgba(181,67,42,.045);
}
#browseTable td .k {
  color: var(--ink);
}
#browseTable .pin-btn {
  transition: transform .12s ease, border-color .12s ease;
}
#browseTable .pin-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: var(--shu);
}
.quiz-card .q-stem {
  position: relative;
  padding-left: 14px;
}
.quiz-card .q-stem::before {
  content: "";
  position: absolute; left: 0; top: .2em; bottom: .2em; width: 4px;
  border-radius: 999px;
  background: var(--ai);
}
.quiz-card .q-audio,
.quiz-card .q-passage {
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.25);
}
.quiz-card .explain.show,
.cloze-answer {
  border: 1px solid var(--line);
  border-left: 4px solid var(--ai);
  background: var(--surface-2);
  border-radius: 12px;
  padding: 12px 14px;
}
.cloze-stage .cloze-sent {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
  margin-bottom: 18px;
}
.cloze-blank {
  background: var(--primary-soft);
  border-radius: 8px 8px 2px 2px;
  padding: 0 8px;
  animation: blankPulse 1.8s ease-in-out infinite;
}
.cloze-blank.ok,
.cloze-blank.ng {
  animation: none;
}
@keyframes blankPulse {
  50% { box-shadow: 0 0 0 5px rgba(181,67,42,.08); }
}
.listen-stage {
  min-height: 360px;
}
.listen-stage .listen-play:first-child {
  margin: 8px 0 4px;
}
.listen-stage .listen-big {
  min-width: 210px;
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(181,67,42,.2);
  animation: listenGlow 2.4s ease-in-out infinite;
}
@keyframes listenGlow {
  50% { box-shadow: 0 12px 30px rgba(181,67,42,.3), 0 0 0 6px rgba(181,67,42,.08); }
}
.listen-stage .game-opts {
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.ex-play {
  background: var(--card);
}
.ex-play:hover {
  transform: translateY(-1px);
}
@media (prefers-reduced-motion: reduce) {
  .game-home, .game-stage, .quiz-card, .study-card, .study-challenge-card,
  .cloze-blank, .listen-stage .listen-big {
    animation: none;
  }
}

/* ── 限时冲刺 ─────────────────────────────────────────────── */
/* Game UI reusable components */
.game-layered > * {
  animation: layerIn var(--game-speed) ease both;
  animation-delay: calc(var(--layer, 0) * 45ms);
}
@keyframes layerIn {
  from { opacity: 0; transform: translateY(8px); }
}
.game-home {
  border-radius: var(--game-radius);
  box-shadow: var(--game-shadow);
}
.game-hud {
  gap: 8px;
  flex-wrap: wrap;
}
.game-hud .mode-pill,
.study-meta .mode-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 9px;
}
.study-combo-pill,
.combo-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 26px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--warning-text);
  border: 1px solid rgba(160,110,20,.22);
  font-size: .78rem;
  font-weight: 800;
}
.study-energy {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  min-width: 58px;
}
.study-energy i {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--line);
}
.study-energy i.on {
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(168,123,22,.1);
}
.study-card .kanji,
.study-card .kana,
.study-card .back {
  animation: layerIn var(--game-speed) ease both;
}
.study-card .kana { animation-delay: 50ms; }
.study-card .back { animation-delay: 80ms; }
.study-card.revealed {
  transform: translateY(-1px);
}
.study-card.revealed .back {
  display: block;
  animation: answerReveal var(--game-speed-slow) ease both;
}
@keyframes answerReveal {
  from { opacity: 0; transform: translateY(10px); max-height: 0; }
  to { opacity: 1; transform: translateY(0); max-height: 620px; }
}
.grade {
  min-height: 58px;
  transition: transform var(--game-speed-fast), border-color var(--game-speed-fast), box-shadow var(--game-speed-fast), background var(--game-speed-fast);
}
.grade:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--game-shadow-soft);
}
.grade:active:not(:disabled) {
  transform: scale(.985);
}
.grade.again { background: var(--error-soft); }
.grade.fuzzy { background: var(--warning-soft); }
.grade.good { background: var(--secondary-soft); }
.grade.easy { background: var(--success-soft); }
.score-burst {
  position: fixed;
  z-index: 1200;
  pointer-events: none;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--accent);
  font-weight: 900;
  box-shadow: var(--game-shadow-soft);
  animation: scoreBurst .7s ease forwards;
}
@keyframes scoreBurst {
  from { opacity: 0; transform: translate(-50%, 4px) scale(.92); }
  35% { opacity: 1; }
  to { opacity: 0; transform: translate(-50%, -26px) scale(1); }
}
.browse-summary {
  display: grid;
  grid-template-columns: minmax(210px, 1.35fr) repeat(4, minmax(86px, .7fr));
  gap: 10px;
  margin: -2px 0 14px;
}
.browse-summary-card {
  border: 1px solid var(--line);
  border-radius: var(--game-radius);
  background: var(--card);
  padding: 13px 14px;
  box-shadow: var(--game-shadow-soft);
}
.browse-summary-card.primary {
  border-color: rgba(181,67,42,.25);
  background: linear-gradient(180deg, rgba(247,234,229,.72), var(--card));
}
.browse-summary-card .label {
  color: var(--ink-2);
  font-size: .76rem;
  font-weight: 700;
}
.browse-summary-card .value {
  margin-top: 2px;
  font-size: 1.15rem;
  font-weight: 900;
}
.browse-summary-card .mini {
  color: var(--ink-2);
  font-size: .76rem;
}
.game-meter {
  height: 8px;
  margin-top: 9px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.game-meter > i {
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--shu), var(--accent));
  transition: width .45s ease;
}
.browse-skeleton {
  display: grid;
  gap: 10px;
  padding: 14px;
}
.skeleton-row {
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--surface-2), var(--card), var(--surface-2));
  background-size: 220% 100%;
  animation: skeletonSweep 1.1s ease-in-out infinite;
}
@keyframes skeletonSweep {
  to { background-position: -220% 0; }
}
.quiz-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--ink-2);
  font-size: .85rem;
}
.quiz-progress .game-meter {
  flex: 1;
  margin-top: 0;
}
.quiz-card {
  animation-delay: calc(var(--q-index, 0) * 35ms);
}
.quiz-card .opt {
  animation: optionIn var(--game-speed) ease both;
  animation-delay: calc(var(--opt-index, 0) * 35ms);
}
@keyframes optionIn {
  from { opacity: 0; transform: translateY(5px); }
}
.cloze-stage .cloze-answer,
.listen-stage .cloze-answer,
.quiz-card .explain.show {
  animation: layerIn var(--game-speed) ease both;
}
.listen-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.listen-wave {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  width: 28px;
  height: 18px;
}
.listen-wave i {
  width: 3px;
  height: 7px;
  border-radius: 999px;
  background: currentColor;
  opacity: .75;
  transform-origin: 50% 100%;
}
.is-playing .listen-wave i {
  animation: waveBar .62s ease-in-out infinite;
}
.is-playing .listen-wave i:nth-child(2) { animation-delay: .1s; }
.is-playing .listen-wave i:nth-child(3) { animation-delay: .2s; }
@keyframes waveBar {
  50% { transform: scaleY(2.2); opacity: 1; }
}
.result-panel {
  text-align: center;
  padding: 24px 22px;
}
.result-head {
  display: grid;
  place-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.result-ring {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at center, var(--card) 58%, transparent 60%),
    conic-gradient(var(--success) calc(var(--pct, 0) * 1%), var(--line) 0);
  box-shadow: 0 0 0 8px rgba(61,122,82,.08);
}
.result-panel.fail .result-ring {
  background:
    radial-gradient(circle at center, var(--card) 58%, transparent 60%),
    conic-gradient(var(--error) calc(var(--pct, 0) * 1%), var(--line) 0);
  box-shadow: 0 0 0 8px rgba(179,61,47,.08);
}
.result-ring b {
  font-size: 1.75rem;
  line-height: 1;
}
.result-ring span {
  display: block;
  color: var(--ink-2);
  font-size: .72rem;
  font-weight: 700;
}
.result-title {
  font-weight: 900;
  font-size: 1.16rem;
}
.result-sub {
  color: var(--ink-2);
  font-size: .9rem;
}
.result-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 14px 0;
}
.result-metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 8px;
  background: var(--surface);
}
.result-metric b {
  display: block;
  font-size: 1.05rem;
}
.result-metric span {
  color: var(--ink-2);
  font-size: .72rem;
}
.reward-strip {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0 4px;
}
.reward-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 32px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--ink);
  font-size: .8rem;
  font-weight: 800;
}
.reward-chip.xp { color: var(--warning-text); background: var(--accent-soft); border-color: rgba(168,123,22,.28); }
.reward-chip.record { color: var(--success-text); background: var(--success-soft); border-color: rgba(61,122,82,.24); }
.result-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 16px;
}
body.page-hidden * {
  animation-duration: .01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: .01ms !important;
}
body.low-motion .view.active,
body.low-motion .game-layered > *,
body.low-motion .quiz-card .opt,
body.low-motion .score-burst,
body.low-motion .skeleton-row,
body.low-motion .is-playing .listen-wave i {
  animation: none !important;
}
@media (max-width: 720px) {
  .browse-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .browse-summary-card.primary {
    grid-column: 1 / -1;
  }
  .result-metrics {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 520px) {
  .btn.sm { min-height: 44px; }
  .ex-play { min-width: 44px; min-height: 44px; }
  .browse-summary {
    grid-template-columns: 1fr;
  }
  .result-panel {
    padding: 20px 14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .view.active,
  .game-layered > *,
  .quiz-card .opt,
  .score-burst,
  .skeleton-row,
  .is-playing .listen-wave i {
    animation: none !important;
  }
}

.spr-hud {
  display: flex; align-items: center; gap: 14px; margin-bottom: 6px;
  font-size: 1rem;
}
.spr-time  { font-weight: 700; font-variant-numeric: tabular-nums; min-width: 3ch; }
.spr-score { color: var(--shu); }
.spr-score b { font-size: 1.2rem; }
.spr-combo { margin-left: auto; color: var(--accent); font-weight: 700; min-height: 1.2em; }
.spr-timerbar {
  height: 8px; background: var(--line); border-radius: 5px;
  overflow: hidden; margin-bottom: 14px;
}
.spr-timerbar i { display: block; height: 100%; transition: width .1s linear, background .3s; }
.spr-word { font-size: 2.6rem; font-weight: 700; line-height: 1.2; }
.spr-kana { color: var(--ink-2); margin-top: 2px; }

/* ── 游客模式 ─────────────────────────────────────────────── */
.guest-entry { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--line); }
.guest-cta {
  margin: 14px auto 0; padding: 14px 16px; max-width: 440px;
  border: 1.5px dashed var(--shu); border-radius: 12px;
  background: rgba(200, 71, 43, .05); font-size: .92rem; line-height: 1.7;
}

/* ── 站点页脚 ─────────────────────────────────────────────── */
.site-footer {
  max-width: 1080px; margin: 40px auto 0; padding: 20px 20px 28px;
  border-top: 1px solid var(--line);
  text-align: center; font-size: .8rem; color: var(--ink-2); line-height: 2;
}
.site-footer a { color: var(--ink-2); text-decoration: underline; text-underline-offset: 3px; }
.site-footer a:hover { color: var(--shu); }
.footer-links { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.footer-attr, .footer-note { font-size: .75rem; opacity: .85; }

/* furigana 开关：隐藏 <rt> 即可 */
body.no-furigana ruby rt { display: none; }

/* ── 游戏化：XP / 段位 / 今日修行 / 宝箱 ─────────────────── */
.xp-float {
  position: fixed; top: 30%; left: 50%;
  font-size: 1.05rem; font-weight: 800; color: var(--accent);
  background: var(--card); border: 1.5px solid var(--accent); border-radius: 999px;
  padding: 5px 18px; box-shadow: var(--shadow);
  z-index: 999; pointer-events: none; white-space: nowrap;
  animation: comboIn .2s ease forwards, comboOut .25s ease .7s forwards;
}

/* 段位提升——朱印落款 */
.rank-seal {
  display: inline-block; padding: 18px 22px;
  font-family: serif; font-size: 1.9rem; font-weight: 800; color: #fff;
  background: var(--primary); border-radius: 12px;
  box-shadow: 0 4px 14px var(--focus);
  animation: sealStamp .3s cubic-bezier(.2, 1.6, .4, 1) forwards;
  writing-mode: vertical-rl;
}
@keyframes sealStamp {
  from { opacity: 0; transform: scale(2.2) rotate(-8deg); }
  to   { opacity: 1; transform: scale(1) rotate(-3deg); }
}

/* 今日修行 */
.quest-list { display: flex; flex-direction: column; gap: 6px; margin: 10px 0 12px; }
.quest-row {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px;
  cursor: pointer; transition: background .15s;
}
.quest-row:hover { background: var(--bg); }
.quest-row.done { cursor: default; opacity: .75; border-color: transparent; background: var(--bg); }
.quest-check { font-weight: 800; width: 1.2em; text-align: center; }
.quest-row.done .quest-check { color: var(--success); }
.quest-label { flex: 1; }
.quest-label small { color: var(--ink-2); margin-left: 6px; }
.quest-prog { color: var(--ink-2); font-size: .85rem; font-variant-numeric: tabular-nums; }
.quest-chest { text-align: center; color: var(--ink-2); font-size: .88rem; padding: 6px 0 2px; }
.quest-chest.opened { color: var(--ink); }
.quest-chest-btn { width: 100%; }

/* 今日の一問 */
.panel.daily { border-left: 4px solid var(--shu); }
.daily-badge {
  font-size: .72rem; font-weight: 700; color: #fff; background: var(--shu);
  border-radius: 6px; padding: 2px 7px; vertical-align: middle; margin-left: 4px;
}
.daily-stem { margin: 10px 0 12px; font-size: 1.02rem; line-height: 1.6; }
.daily-opts { display: flex; flex-direction: column; gap: 8px; }
.daily-opts .daily-opt { text-align: left; }
.daily-opts.done .daily-opt {
  padding: 9px 12px; border: 1px solid var(--line); border-radius: 10px; font-weight: 600;
}
.daily-opt.right { background: var(--success-soft); border-color: var(--success); color: var(--success-text); }
.daily-opt.wrong { background: var(--error-soft); border-color: var(--error); color: var(--error-text); }
.daily-verdict { margin: 12px 0 4px; font-weight: 800; }
.daily-verdict.ok { color: var(--success-text); }
.daily-verdict.ng { color: var(--error-text); }
.daily-exp { color: var(--ink-2); font-size: .9rem; line-height: 1.6; margin: 4px 0 8px; }
.daily-foot { color: var(--ink-2); font-size: .82rem; margin-top: 8px; }

/* 宝箱开启 */
.chest-pop { font-size: 3.2rem; animation: chestPop .3s cubic-bezier(.2, 1.6, .4, 1) forwards; }
.chest-pop.epic { filter: drop-shadow(0 0 12px var(--accent)); }
@keyframes chestPop {
  from { opacity: 0; transform: scale(.4) translateY(16px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.chest-amount { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin-top: 6px; }

/* 结算页「击败本周 N%」 */
.pct-beat {
  display: inline-block; margin-bottom: 10px;
  padding: 5px 16px; border-radius: 999px;
  background: var(--bg); border: 1px solid var(--line);
  font-size: .88rem; font-weight: 700;
}

/* 修行之路 */
.growth-rank { text-align: center; padding: 6px 0 2px; }
.growth-rank-name { font-size: 1.5rem; font-weight: 800; }
.growth-xp { color: var(--ink-2); font-size: .85rem; margin-top: 4px; }

@media (prefers-reduced-motion: reduce) {
  .xp-float, .rank-seal, .chest-pop { animation-duration: .01s; }
}

/* ── 文法斩 ─────────────────────────────────────────────────── */
.slash-home { text-align: center; }
.slash-lv-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 14px; }
.slash-lv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(88px, 1fr)); gap: 10px; }
.slash-lv-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 14px 8px; border: 1px solid var(--line); border-radius: 12px;
  background: var(--card); color: var(--ink); cursor: pointer; transition: transform .1s, border-color .2s;
}
.slash-lv-btn:hover { border-color: var(--shu); transform: translateY(-2px); }
.slash-lv-btn b { font-size: 1.35rem; color: var(--shu); }
.slash-lv-btn span { font-size: .72rem; color: var(--ink-2); }

.slash-battle { max-width: 560px; margin: 0 auto; }
.slash-topline { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: .9rem; }
.slash-hearts { letter-spacing: 2px; }
.slash-combo { color: var(--shu); font-weight: 700; }
.slash-count { color: var(--ink-2); }
.slash-enemy { text-align: center; margin-bottom: 12px; }
.slash-face { font-size: 3rem; line-height: 1; transition: transform .15s; }
.slash-enemy.revenge .slash-face { filter: hue-rotate(-25deg) saturate(1.4); }
.slash-enemy-name { font-size: .82rem; color: var(--ink-2); margin: 4px 0 8px; }
.slash-hp { height: 10px; background: var(--line); border-radius: 6px; overflow: hidden; max-width: 320px; margin: 0 auto; }
.slash-hp-fill { display: block; height: 100%; background: linear-gradient(90deg, #c0392b, #e74c3c); transition: width .3s ease; }
.slash-enemy.slash-hit .slash-face { transform: scale(1.25) rotate(-8deg); }
.slash-timerwrap i { background: var(--shu); }
.slash-qcard { text-align: center; }
.slash-mode { display: inline-block; font-size: .68rem; color: var(--ink-2); border: 1px solid var(--line); border-radius: 20px; padding: 2px 10px; margin-bottom: 10px; }
.slash-stem { font-size: 1.25rem; line-height: 1.7; margin-bottom: 16px; }
.slash-cards { display: grid; gap: 10px; }
.slash-card {
  padding: 13px 14px; border: 1.5px solid var(--line); border-radius: 12px;
  background: var(--card); color: var(--ink); font-size: 1.02rem; cursor: pointer;
  transition: transform .08s, border-color .15s, background .15s;
}
.slash-card:hover:not(:disabled) { border-color: var(--shu); }
.slash-card:active:not(:disabled) { transform: scale(.98); }
.slash-card.correct { border-color: var(--green); background: color-mix(in srgb, var(--green) 14%, var(--card)); }
.slash-card.wrong { border-color: #c0392b; background: color-mix(in srgb, #c0392b 12%, var(--card)); }

.slash-hook {
  position: fixed; left: 50%; bottom: 22%; transform: translateX(-50%);
  background: rgba(20,20,24,.94); color: #fff; padding: 14px 20px; border-radius: 14px;
  text-align: center; z-index: 9999; max-width: 86vw; box-shadow: 0 8px 30px rgba(0,0,0,.3);
  transition: opacity .3s; animation: slashHookIn .25s ease;
}
@keyframes slashHookIn { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }
.slash-hook-tag { font-size: .68rem; color: #ffd36b; letter-spacing: 2px; margin-bottom: 4px; }
.slash-hook-line { font-size: 1.05rem; font-weight: 600; }
body.slash-shake { animation: slashShake .4s; }
@keyframes slashShake { 0%,100%{transform:translateX(0)} 20%{transform:translateX(-7px)} 40%{transform:translateX(6px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(3px)} }

.slash-result { text-align: center; max-width: 420px; margin: 0 auto; }
.slash-result-head { font-size: 1.15rem; font-weight: 700; margin-bottom: 6px; }
.slash-score { font-size: 3rem; font-weight: 800; color: var(--shu); line-height: 1.05; }
.slash-score span { font-size: 1rem; font-weight: 500; color: var(--ink-2); margin-left: 4px; }
.slash-stats { color: var(--ink-2); font-size: .9rem; margin: 6px 0; }
.slash-title-badge { display: inline-block; margin: 8px 0; padding: 5px 16px; border-radius: 20px; background: color-mix(in srgb, var(--shu) 12%, var(--card)); color: var(--shu); font-weight: 700; }
.slash-verdict { font-size: .95rem; margin: 8px 0; }
.slash-best { font-size: .82rem; color: var(--ink-2); }
.slash-wrong-list { text-align: left; margin: 16px 0 6px; border-top: 1px dashed var(--line); padding-top: 12px; }
.slash-wrong-title { font-weight: 600; font-size: .85rem; margin-bottom: 8px; }
.slash-wrong-row { padding: 8px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; gap: 2px; }
.slash-wrong-ans { font-size: .8rem; color: var(--green); }
.slash-wrong-hook { font-size: .78rem; color: var(--ink-2); }
.slash-brand { font-size: .72rem; color: var(--ink-2); margin-top: 14px; letter-spacing: 1px; }

/* ── 配对消除 ─────────────────────────────────────────────── */
.match-hud, .match-progress, .match-board { max-width: 640px; margin-left: auto; margin-right: auto; }
.match-hud { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; flex-wrap: wrap; }
.match-wavetag { font-size: .78rem; font-weight: 700; color: var(--ink-2); letter-spacing: .08em; }
.match-combo { font-weight: 800; color: var(--shu); min-width: 58px; font-size: .95rem; }
.match-combo i { display: block; height: 3px; width: 100%; background: var(--shu); border-radius: 2px; transition: width .12s linear; }
.match-progress { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-bottom: 14px; }
.match-progress i { display: block; height: 100%; width: 0; background: var(--green); border-radius: 3px; transition: width .3s ease; }

.match-board { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: start; }
.match-board.boss { padding: 8px; border-radius: 14px; background: color-mix(in srgb, var(--shu) 6%, transparent); }
.match-board.boss .mcard { border-color: color-mix(in srgb, var(--shu) 35%, var(--line)); }
.match-col { display: flex; flex-direction: column; gap: 10px; }
.mcard {
  position: relative; width: 100%; min-height: 58px; padding: 10px 12px;
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--card); color: var(--ink);
  cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  font-size: 1rem; transition: transform .12s, border-color .12s, box-shadow .12s;
}
.mcard:active { transform: scale(.97); }
.mcard.jp .mk { font-size: 1.15rem; font-weight: 600; }
.mcard .kana { font-size: .72rem; color: var(--ink-2); }
.mcard.cn { font-size: .88rem; line-height: 1.45; text-align: center; }
.mcard.cn { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.mcard.sel { border-color: var(--shu); box-shadow: 0 0 0 2px color-mix(in srgb, var(--shu) 28%, transparent); transform: scale(1.03); }
.mcard.matched { animation: mcardPop .34s ease forwards; pointer-events: none; }
@keyframes mcardPop {
  30%  { transform: scale(1.12); border-color: var(--green); box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 30%, transparent); }
  100% { transform: scale(0); opacity: 0; }
}
.mcard.gone { visibility: hidden; pointer-events: none; }
.mcard.drop { animation: mcardDrop .3s ease; }
@keyframes mcardDrop { from { transform: translateY(-14px) scale(.9); opacity: 0; } }
.mcard.miss { animation: mcardShake .5s ease; border-color: var(--shu); background: color-mix(in srgb, var(--shu) 9%, var(--card)); }
@keyframes mcardShake { 20%,60% { transform: translateX(-6px); } 40%,80% { transform: translateX(6px); } }
.mcard.hint { animation: mcardHint 1.4s ease; }
@keyframes mcardHint { 30%,70% { box-shadow: 0 0 0 3px var(--amber); border-color: var(--amber); } }
.mcard.rev::after { content: '💢'; position: absolute; top: -8px; right: -6px; font-size: .95rem; }

/* 得分/答案飘字 */
.m-float {
  position: fixed; z-index: 950; pointer-events: none; white-space: nowrap;
  font-weight: 800; font-size: 1rem; color: var(--green);
  animation: mFloatUp 1.2s ease-out forwards;
}
.m-float.rev { color: var(--shu); font-size: 1.12rem; }
.m-float.due { color: var(--green); font-size: .78rem; font-weight: 600; }
.m-float.why {
  color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 4px 10px; font-weight: 600; font-size: .85rem; max-width: 78vw; white-space: normal;
  box-shadow: 0 4px 14px rgba(0,0,0,.16); animation: mWhy 1.85s ease forwards;
}
@keyframes mFloatUp {
  0%   { opacity: 0; transform: translate(-50%, 6px); }
  15%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -56px); }
}
@keyframes mWhy {
  0%      { opacity: 0; transform: translate(-50%, 0); }
  12%,80% { opacity: 1; transform: translate(-50%, -48px); }
  100%    { opacity: 0; transform: translate(-50%, -54px); }
}

/* 结仇横幅（底部滑入） */
.match-grudge {
  position: fixed; left: 50%; bottom: 88px; transform: translateX(-50%); z-index: 960;
  background: rgba(20,20,24,.94); color: #fff; padding: 10px 18px; border-radius: 12px;
  font-size: .9rem; font-weight: 600; max-width: 88vw; box-shadow: 0 6px 20px rgba(0,0,0,.25);
  animation: grudgeIn .3s ease;
}
.match-grudge.out { opacity: 0; transition: opacity .35s; }
@keyframes grudgeIn { from { transform: translate(-50%, 20px); opacity: 0; } }

/* 波次横幅 */
.match-waveb {
  position: fixed; left: 0; right: 0; top: 36%; z-index: 940; pointer-events: none;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  animation: wavebIn 1.15s ease forwards;
}
.match-waveb b { font-size: 2rem; font-weight: 800; color: var(--shu); letter-spacing: .12em; text-shadow: 0 2px 14px rgba(0,0,0,.18); }
.match-waveb span { font-size: .9rem; color: var(--ink); background: var(--card); border: 1px solid var(--line); padding: 4px 14px; border-radius: 999px; box-shadow: 0 4px 14px rgba(0,0,0,.1); }
.match-waveb.boss b { font-size: 2.2rem; }
@keyframes wavebIn {
  0%      { opacity: 0; transform: translateY(14px); }
  12%,78% { opacity: 1; transform: none; }
  100%    { opacity: 0; }
}

@media (max-width: 640px) {
  .match-board, .match-col { gap: 8px; }
  .mcard { min-height: 52px; padding: 8px; }
  .mcard.jp .mk { font-size: 1.02rem; }
  .mcard.cn { font-size: .8rem; }
  .match-waveb b { font-size: 1.6rem; }
}

/* ── 单词拼图 ─────────────────────────────────────────────── */
.pz-word { font-size: 1.7rem; font-weight: 700; letter-spacing: .04em; }
.pz-meaning { color: var(--ink-2); margin: 4px 0 14px; }
.pz-boss-hint { font-size: .8rem; color: var(--shu); font-weight: 600; margin: -8px 0 12px; }
.pz-rev-tag { font-size: .76rem; font-weight: 700; color: var(--shu); }
.pz-slots { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.pz-slot {
  min-width: 46px; height: 50px; padding: 0 6px; border-radius: 10px;
  border: 2px dashed var(--border-strong); background: var(--surface-2);
  font-size: 1.25rem; font-weight: 600; color: var(--ink); cursor: pointer;
}
.pz-slot.filled { border-style: solid; border-color: var(--shu); background: var(--card); animation: mcardDrop .2s ease; }
.pz-slots.ok .pz-slot { border-color: var(--green); background: var(--success-soft); color: var(--success-text); }
.pz-slots.ng .pz-slot { border-color: var(--error); background: var(--error-soft); animation: mcardShake .5s ease; }
.pz-tiles { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.pz-tile {
  min-width: 52px; height: 54px; padding: 0 8px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink);
  font-size: 1.3rem; font-weight: 600; cursor: pointer;
  transition: transform .12s, border-color .12s, opacity .12s;
  box-shadow: 0 2px 0 var(--border-strong);
}
.pz-tile:active { transform: translateY(2px); box-shadow: none; }
.pz-tile.used { opacity: .25; box-shadow: none; }
.pz-ok-line { margin-top: 14px; font-size: 1.02rem; }
@media (max-width: 640px) {
  .pz-word { font-size: 1.45rem; }
  .pz-slot { min-width: 40px; height: 46px; font-size: 1.1rem; }
  .pz-tile { min-width: 46px; height: 50px; font-size: 1.15rem; }
}

/* ── 拼句游戏 ─────────────────────────────────────────────── */
.sentence-card { max-width: 760px; margin-left: auto; margin-right: auto; text-align: center; }
.sent-point-row {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-bottom: 4px; flex-wrap: wrap;
}
.sent-point { font-size: 1.35rem; font-weight: 800; color: var(--shu); }
.sent-point-play { flex: 0 0 auto; }
.sent-grammar-meaning,
.sent-translation {
  display: flex; justify-content: center; align-items: baseline; gap: 7px;
  font-size: .96rem; font-weight: 600; line-height: 1.5;
}
.sent-grammar-meaning span,
.sent-translation span {
  flex: 0 0 auto; color: var(--ink-2); font-size: .76rem; font-weight: 600;
}
.sent-grammar-meaning { color: var(--shu); margin-bottom: 3px; }
.sent-translation { color: var(--ink); margin-bottom: 7px; }
.sent-structure { color: var(--ink-2); font-size: .86rem; margin-bottom: 16px; }
.sent-slots {
  display: flex; justify-content: center; align-items: stretch; gap: 8px; flex-wrap: wrap;
  min-height: 58px; margin-bottom: 18px;
}
.sent-slot {
  min-width: 72px; min-height: 48px; padding: 8px 12px; border-radius: 10px;
  border: 2px dashed var(--border-strong); background: var(--surface-2);
  color: var(--ink); font-size: 1rem; font-weight: 700; cursor: pointer;
}
.sent-slot.filled { border-style: solid; border-color: var(--shu); background: var(--card); animation: mcardDrop .2s ease; }
.sent-slots.ok .sent-slot { border-color: var(--green); background: var(--success-soft); color: var(--success-text); }
.sent-slots.ng .sent-slot { border-color: var(--error); background: var(--error-soft); animation: mcardShake .5s ease; }
.sent-tiles { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }
.sent-tile {
  min-height: 48px; padding: 8px 14px; border-radius: 12px;
  border: 1.5px solid var(--line); background: var(--card); color: var(--ink);
  font-size: 1rem; font-weight: 700; cursor: pointer;
  transition: transform .12s, border-color .12s, opacity .12s;
  box-shadow: 0 2px 0 var(--border-strong);
}
.sent-tile:active { transform: translateY(2px); box-shadow: none; }
.sent-tile.is-reading {
  border-color: var(--shu); background: var(--shu-soft);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--shu) 18%, transparent);
}
.sent-tile.used { opacity: .25; box-shadow: none; }
.sent-praise {
  margin-top: 14px; color: var(--shu); font-size: .88rem; font-weight: 900;
  animation: sentPraiseIn .35s cubic-bezier(.2,.9,.25,1.25) both;
}
.sent-ok-line {
  position: relative; margin-top: 6px; padding-bottom: 6px;
  display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap;
}
.sent-ok-line .jp { font-size: 1.1rem; font-weight: 700; }
.sent-slot.sent-win-lock {
  animation: sentSlotLock .42s cubic-bezier(.2,.9,.25,1.25) both;
  animation-delay: calc(var(--sent-slot-i) * 55ms);
}
.sent-ok-line.sent-read-sweep::after {
  content: ''; position: absolute; left: 0; bottom: 0; width: 22%; height: 3px;
  border-radius: 3px; background: var(--accent);
  transform: translateX(-110%);
  animation: sentReadSweep var(--sent-read-ms, 1200ms) linear both;
}
.sent-score-fly {
  position: fixed; z-index: 1200; pointer-events: none;
  color: var(--accent); background: var(--card); border: 1px solid var(--accent);
  border-radius: 999px; padding: 3px 9px; font-size: .82rem; font-weight: 900;
  animation: sentScoreFly .9s cubic-bezier(.2,.7,.25,1) forwards;
}
.sent-sparks { position: fixed; z-index: 1190; width: 1px; height: 1px; pointer-events: none; }
.sent-sparks i {
  position: absolute; color: var(--accent); font-size: .86rem; font-style: normal;
  animation: sentSpark .72s ease-out var(--sent-spark-delay) both;
}
.sent-combo-hit { animation: sentComboHit .55s cubic-bezier(.2,.9,.25,1.25); }
@keyframes sentSlotLock {
  0% { transform: translateY(5px) scale(.96); }
  55% { transform: translateY(-3px) scale(1.04); }
  100% { transform: translateY(0) scale(1); }
}
@keyframes sentPraiseIn {
  from { opacity: 0; transform: translateY(7px) scale(.94); }
}
@keyframes sentReadSweep { to { transform: translateX(455%); } }
@keyframes sentScoreFly {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(.82); }
  18% { opacity: 1; transform: translate(-50%, -58%) scale(1.06); }
  100% { opacity: 0; transform: translate(calc(-50% + var(--sent-fly-x)), calc(-50% + var(--sent-fly-y))) scale(.72); }
}
@keyframes sentSpark {
  from { opacity: 1; transform: translate(-50%, -50%) scale(.65); }
  to { opacity: 0; transform: translate(calc(-50% + var(--sent-spark-x)), calc(-50% + var(--sent-spark-y))) scale(1.05); }
}
@keyframes sentComboHit {
  45% { transform: scale(1.18); color: var(--accent); }
}
@media (max-width: 640px) {
  .sent-point { font-size: 1.15rem; }
  .sent-point-row { gap: 6px; }
  .sent-slot { min-width: 58px; min-height: 44px; padding: 7px 9px; font-size: .92rem; }
  .sent-tile { min-height: 44px; padding: 7px 10px; font-size: .92rem; }
}
@media (prefers-reduced-motion: reduce) {
  .sent-praise, .sent-slot.sent-win-lock, .sent-ok-line.sent-read-sweep::after,
  .sent-score-fly, .sent-sparks i, .sent-combo-hit { animation: none !important; }
  .sent-score-fly, .sent-sparks { display: none !important; }
}
.low-motion .sent-praise,
.low-motion .sent-slot.sent-win-lock,
.low-motion .sent-ok-line.sent-read-sweep::after,
.low-motion .sent-combo-hit { animation: none !important; }
.low-motion .sent-score-fly,
.low-motion .sent-sparks { display: none !important; }

/* ── 单词打地鼠 ───────────────────────────────────────────── */
.mole-prompt {
  max-width: 640px; margin: 0 auto 12px; padding: 12px 16px; text-align: center;
  font-size: 1.05rem; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
}
.mole-prompt b { color: var(--shu); }
.mole-pace {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 54px; padding: 2px 8px; border-radius: 999px;
  font-size: .76rem; font-weight: 800; color: var(--ink-2);
  background: var(--surface-2); border: 1px solid var(--line);
}
.mole-pace.hot { color: var(--shu); border-color: var(--shu); background: var(--shu-soft); }
.mole-pace.ease { color: var(--green); border-color: var(--success); background: var(--success-soft); }
.mole-pace.revenge { color: #7a3b00; border-color: #d28a18; background: #fff2cf; }
.mole-timer { position: absolute; left: 0; bottom: 0; right: 0; height: 4px; background: var(--line); display: block; }
.mole-timer i { display: block; height: 100%; width: 100%; background: var(--amber); transition-property: width; transition-timing-function: linear; }
.mole-grid {
  max-width: 640px; margin: 0 auto; display: grid;
  grid-template-columns: repeat(3, 1fr); gap: 12px; touch-action: manipulation;
}
.mole-cell {
  position: relative; height: 96px; border-radius: 14px; overflow: hidden;
  background: var(--surface-2); border: 1.5px solid var(--line); cursor: pointer;
  transition: border-color .14s, transform .14s, background .14s;
}
.mole-cell.tap-empty { transform: scale(.97); border-color: var(--border-strong); background: var(--hover); }
.mole-cell::after {   /* 洞口 */
  content: ''; position: absolute; left: 14%; right: 14%; bottom: 8px; height: 12px;
  border-radius: 50%; background: var(--border-strong); opacity: .55;
}
.mole {
  position: absolute; inset: 4px 4px 10px; z-index: 1; border: none; cursor: pointer;
  border-radius: 12px; background: var(--card); box-shadow: 0 2px 8px rgba(0,0,0,.12);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  color: var(--ink); transform: translateY(110%); transition: transform .16s ease-out;
}
.mole.up { transform: translateY(0); }
.mole.hint { box-shadow: 0 0 0 2px var(--focus), 0 8px 18px rgba(181,67,42,.18); }
.mole-face { font-size: 1.15rem; line-height: 1; }
.mole-word {
  font-size: .98rem; font-weight: 600; max-width: 100%; overflow: hidden;
  padding: 0 4px; line-height: 1.18; white-space: normal; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.mole-word.long { font-size: .88rem; }
.mole-word.xlong { font-size: .78rem; letter-spacing: 0; }
.mole.bonk { animation: moleBonk .45s ease forwards; }
@keyframes moleBonk {
  25% { transform: translateY(10%) scaleY(.6); }
  60% { transform: translateY(0) scaleY(1.05); background: var(--success-soft); }
  100% { transform: translateY(0); background: var(--success-soft); border: 2px solid var(--green); }
}
.mole.oops { animation: mcardShake .4s ease; background: var(--error-soft); }
@media (max-width: 640px) {
  .mole-prompt { font-size: .96rem; padding: 11px 12px; }
  .mole-cell { height: 84px; }
  .mole-word { font-size: .86rem; }
  .mole-word.long { font-size: .78rem; }
  .mole-word.xlong { font-size: .7rem; }
  .mole-face { font-size: 1rem; }
}

/* 答对后的醒目单词卡（消消乐/打地鼠共用） */
.word-stamp {
  position: fixed; left: 50%; top: 30%; transform: translate(-50%, 0); z-index: 970;
  min-width: 220px; max-width: 86vw; padding: 14px 26px; text-align: center;
  background: var(--card); border: 2px solid var(--shu); border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0,0,0,.22); pointer-events: none;
  animation: wsIn .22s cubic-bezier(.2,1.4,.4,1);
}
.word-stamp.out { opacity: 0; transition: opacity .3s; }
.ws-kana { font-size: .95rem; color: var(--shu); font-weight: 700; letter-spacing: .1em; }
.ws-kanji { font-size: 2.1rem; font-weight: 700; line-height: 1.25; }
.ws-mean { font-size: .9rem; color: var(--ink-2); margin-top: 2px; }
@keyframes wsIn { from { opacity: 0; transform: translate(-50%, 14px) scale(.85); } }

/* ── 单词跑酷 ─────────────────────────────────────────────── */
.run-prompt {
  max-width: 640px; margin: 0 auto 10px; padding: 12px 16px; text-align: center; font-size: 1.05rem;
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
}
.run-prompt b { color: var(--shu); }
.run-pace {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 54px; padding: 2px 8px; border-radius: 999px;
  font-size: .76rem; font-weight: 800; color: var(--ink-2);
  background: var(--surface-2); border: 1px solid var(--line);
}
.run-pace.hot { color: var(--shu); border-color: var(--shu); background: var(--shu-soft); }
.run-pace.ease { color: var(--green); border-color: var(--success); background: var(--success-soft); }
.run-pace.revenge { color: #7a3b00; border-color: #d28a18; background: #fff2cf; }
.run-countbar {
  max-width: 640px; height: 5px; margin: 0 auto 10px; overflow: hidden;
  border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line);
}
.run-countbar i {
  display: block; width: 100%; height: 100%; border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--shu));
  transition-property: width; transition-timing-function: linear;
}
.run-track {
  max-width: 640px; margin: 0 auto; display: grid; gap: 12px;
  height: 220px; position: relative; isolation: isolate;
  --run-distance: 226px;
}
.run-lane {
  position: relative; border-radius: 14px; overflow: hidden;
  background: var(--surface-2); border: 1.5px solid var(--line); cursor: pointer;
  transition: border-color .16s, box-shadow .16s, background .16s, transform .16s;
}
.run-lane.active {
  border-color: var(--shu);
  background: var(--primary-soft);
  box-shadow: inset 0 0 0 2px var(--focus), 0 6px 18px rgba(181,67,42,.12);
}
.run-lane.active::after {
  content: ""; position: absolute; left: 18%; right: 18%; bottom: 0; height: 4px;
  border-radius: 999px 999px 0 0; background: var(--shu); opacity: .85;
}
.run-hit-line {
  position: absolute; left: 8px; right: 8px; bottom: 45px; height: 2px;
  z-index: 5; pointer-events: none;
  background: repeating-linear-gradient(90deg, var(--shu) 0 14px, transparent 14px 22px);
  filter: drop-shadow(0 0 5px rgba(181,67,42,.38));
}
.run-obstacle {
  position: absolute; left: 8%; right: 8%; top: -60px; padding: 10px 6px;
  border-radius: 10px; background: var(--card); border: 1.5px solid var(--border-strong);
  text-align: center; font-weight: 700; font-size: 1.02rem; box-shadow: 0 2px 8px rgba(0,0,0,.1);
  transform: translateY(0);
  transition-property: transform; transition-timing-function: linear; z-index: 3;
  will-change: transform;
}
.run-obstacle.approach { transform: translateY(var(--run-distance)); }
.run-obstacle.hit { border-color: var(--error); background: var(--error-soft); }
.run-obstacle.safe { border-color: var(--green); background: var(--success-soft); }
.run-runner {
  position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%) scale(.9);
  font-size: 1.6rem; opacity: .35; transition: opacity .15s, transform .15s; z-index: 6;
}
.run-runner.here { opacity: 1; transform: translateX(-50%) scale(1.15); }
/* 选中车道的小人原地奔跑（上下颠+左右摆）；置于 dodge/crash 之前，让躲闪/撞车动画按源码序覆盖它 */
.run-runner.running { animation: runStep .46s ease-in-out infinite; }
@keyframes runStep {
  0%, 100% { transform: translateX(-50%) scale(1.15) translateY(0)    rotate(-5deg); }
  50%      { transform: translateX(-50%) scale(1.15) translateY(-5px) rotate(5deg); }
}
.run-runner.dodge { animation: runDodge .5s ease; }
@keyframes runDodge { 30% { transform: translateX(-50%) translateY(-14px) scale(1.2); } }
.run-runner.crash { animation: mcardShake .45s ease; }
@media (prefers-reduced-motion: reduce) {
  .run-runner.running { animation: none; }
}
@media (max-width: 640px) {
  .run-prompt { font-size: .96rem; padding: 11px 12px; }
  .run-track { height: 190px; --run-distance: 196px; }
  .run-obstacle { font-size: .92rem; padding: 8px 4px; }
  .run-runner { font-size: 1.35rem; }
}

/* ── 添加到主屏幕提醒条 ───────────────────────────────────── */
.a2hs-banner {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 980;
  max-width: 480px; margin: 0 auto;
  display: flex; align-items: flex-start; gap: 10px;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 14px 12px 14px 14px; box-shadow: 0 10px 34px rgba(0,0,0,.18);
  transform: translateY(140%); transition: transform .32s cubic-bezier(.2,.8,.3,1);
  padding-bottom: calc(14px + env(safe-area-inset-bottom, 0px));
}
.a2hs-banner.show { transform: translateY(0); }
.a2hs-icon { font-size: 1.5rem; line-height: 1.3; flex: 0 0 auto; }
.a2hs-text { flex: 1; font-size: .86rem; line-height: 1.5; color: var(--ink); }
.a2hs-text b { color: var(--ink); }
.a2hs-mute { margin-top: 6px; }
.a2hs-mute a { font-size: .76rem; color: var(--ink-2); text-decoration: underline; cursor: pointer; }
.a2hs-banner .btn { flex: 0 0 auto; align-self: center; }
.a2hs-close {
  position: absolute; top: 4px; right: 6px; border: none; background: none;
  color: var(--ink-2); font-size: 1.1rem; line-height: 1; cursor: pointer;
  width: 44px; height: 44px; display: grid; place-items: center; padding: 0;
}
@media (max-width: 480px) {
  .a2hs-banner { flex-wrap: wrap; }
  .a2hs-banner .btn { margin-left: 34px; }
}

/* ═══════════ 手机端 UI 重设计：底部导航 + 游戏中心 + 首页重排 ═══════════ */

/* 底部 5 栏导航（默认隐藏，≤768px 且已进入应用时显示） */
.tabbar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: var(--card); border-top: 1px solid var(--line);
  padding: 10px 8px calc(10px + env(safe-area-inset-bottom));
}
.tabbar button {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: none; border: 0; padding: 0; font: inherit;
  font-size: 10px; font-weight: 800; color: var(--ink-2); cursor: pointer;
}
.tabbar button.active { color: var(--shu); }
.tabbar svg { display: block; }

/* 汉字图标块（游戏中心 / 首页游戏格共用） */
.gk { display: flex; align-items: center; justify-content: center; border-radius: 14px; font-weight: 700; flex: 0 0 auto; }
.gk.gk-shu-solid { background: var(--shu); color: #fff; }
.gk.gk-shu   { background: var(--primary-soft);   color: var(--shu); }
.gk.gk-ai    { background: var(--secondary-soft); color: var(--secondary); }
.gk.gk-gold  { background: var(--accent-soft);    color: var(--accent); }
.gk.gk-green { background: var(--success-soft);   color: var(--success); }
.gk.gk-rd    { background: var(--tag-rd-bg);      color: var(--tag-rd-fg); }
.gk.gk-ls    { background: var(--tag-ls-bg);      color: var(--tag-ls-fg); }
.gk.gk-err   { background: var(--error-soft);     color: var(--error); }

/* 游戏中心列表 */
.gc-card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.gc-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-bottom: 1px solid var(--line); cursor: pointer; }
.gc-row:last-child { border-bottom: 0; }
.gc-new { display: inline-block; margin-left: 6px; padding: 0 7px; border-radius: 999px; font-size: .68rem; font-weight: 800; line-height: 1.6; vertical-align: 2px; color: #fff; background: var(--shu); }
#tabs button.v2::after { content: attr(data-badge); margin-left: 3px; padding: 0 5px; border-radius: 999px; font-size: .62rem; font-weight: 800; color: #fff; background: var(--shu); vertical-align: 1px; }
.gc-row:hover { background: var(--hover); }
.gc-row .gk { width: 52px; height: 52px; font-size: 26px; }
.gc-row .gc-txt { flex: 1; min-width: 0; }
.gc-row .gc-name { font-size: 15px; font-weight: 800; }
.gc-row .gc-sub { font-size: 11px; color: var(--ink-2); margin-top: 2px; }
.gc-row .gc-go {
  height: 32px; padding: 0 14px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--primary-soft); color: var(--shu); font: inherit; font-size: 12px; font-weight: 800;
}

/* 首页（手机端）重排块 */
.mdash { display: none; flex-direction: column; gap: 14px; margin-bottom: 14px; }
.mdash-head { display: flex; align-items: center; gap: 10px; }
.mdash-head .seal { width: 36px; height: 36px; font-size: 19px; border-radius: 9px; display: flex; align-items: center; justify-content: center; background: var(--shu); color: #fff; box-shadow: var(--shadow); }
.mdash-head .mh-sub { font-size: 11px; color: var(--ink-2); }
.mdash-head .mh-name { font-size: 16px; font-weight: 800; display: flex; align-items: center; gap: 6px; }
.mh-rank { background: var(--accent-soft); color: var(--accent); font-size: 10px; font-weight: 800; padding: 2px 7px; border-radius: 999px; }

.mdash-sec { display: flex; align-items: baseline; justify-content: space-between; }
.mdash-sec b { font-size: 16px; font-weight: 800; }
.mdash-sec a { font-size: 12px; color: var(--ai); cursor: pointer; font-weight: 700; }

.mdash-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.mdash-grid3 .mg-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
  padding: 12px; display: flex; flex-direction: column; gap: 8px; cursor: pointer;
}
.mdash-grid3 .gk { width: 40px; height: 40px; font-size: 20px; border-radius: 11px; }
.mdash-grid3 .mg-name { font-size: 13px; font-weight: 800; }
.mdash-grid3 .mg-sub { font-size: 10px; color: var(--ink-2); }

.mdash-list { background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.mdash-list .ml-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-bottom: 1px solid var(--line); cursor: pointer; }
.mdash-list .ml-row:last-child { border-bottom: 0; }
.mdash-list .ml-row:hover { background: var(--hover); }
.mdash-list .gk { width: 36px; height: 36px; font-size: 17px; border-radius: 10px; }
.mdash-list .ml-t { font-size: 14px; font-weight: 800; }
.mdash-list .ml-s { font-size: 11px; color: var(--ink-2); margin-top: 1px; }
.mdash-list .ml-arrow { margin-left: auto; color: var(--text-3); font-size: 18px; }

/* 我的 */
.me-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.me-head .gk { width: 52px; height: 52px; font-size: 24px; }
.me-head .me-name { font-size: 17px; font-weight: 800; }
.me-head .me-sub { font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.me-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }

/* 01 登录页 */
.auth-brand { text-align: center; margin: 26px 0 18px; }
.auth-brand .ab-seal {
  display: inline-flex; width: 68px; height: 68px; align-items: center; justify-content: center;
  background: var(--shu); color: #fff; font-size: 38px; border-radius: 16px; box-shadow: var(--shadow);
}
.auth-brand .ab-name { font-size: 26px; font-weight: 800; letter-spacing: .04em; margin-top: 10px; }
.auth-brand .ab-sub { font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.auth-seg { display: flex; background: var(--surface-2); border-radius: 10px; padding: 3px; margin-bottom: 14px; }
.auth-seg button {
  flex: 1; height: 38px; border: 0; border-radius: 8px; background: none;
  font: inherit; font-size: 14px; font-weight: 800; color: var(--ink-2); cursor: pointer;
}
.auth-seg button.on { background: var(--card); color: var(--ink); box-shadow: var(--shadow); }
.card.auth .field label { font-size: 11px; font-weight: 800; color: var(--ink-2); }
.card.auth .field input { height: 46px; border-color: var(--border-strong); border-radius: 10px; }
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 56px; width: 100%; }
.pw-wrap .pw-toggle {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: none; border: 0; font: inherit; font-size: 12px; font-weight: 700;
  color: var(--ai); cursor: pointer; padding: 4px;
}

/* 05 词库：状态筛选胶囊 */
.browse-filters { display: flex; gap: 8px; margin: -4px 0 14px; flex-wrap: wrap; }
.browse-filters button {
  border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  padding: 6px 14px; font: inherit; font-size: 12px; font-weight: 800; color: var(--ink-2); cursor: pointer;
}
.browse-filters button.on { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* 03 练习：题卡标签行 + 错题回流提示条 */
.q-tags { display: flex; align-items: center; gap: 6px; margin-bottom: 10px; }
.q-tag { font-size: 10px; font-weight: 800; padding: 2px 8px; border-radius: 6px; white-space: nowrap; }
.q-tag.lv1 { background: var(--tag-n1-bg); color: var(--tag-n1-fg); }
.q-tag.lv2, .q-tag.lv3, .q-tag.lv4, .q-tag.lv5 { background: var(--tag-n2-bg); color: var(--tag-n2-fg); }
.q-tag.vocab     { background: var(--primary-soft);   color: var(--shu-d); }
.q-tag.grammar   { background: var(--secondary-soft); color: var(--secondary); }
.q-tag.reading   { background: var(--tag-rd-bg);      color: var(--tag-rd-fg); }
.q-tag.listening { background: var(--tag-ls-bg);      color: var(--tag-ls-fg); }
/* 04 学习卡：手机端大卡 + 评分 4 栅格 */
.grade.fuzzy b { color: var(--warning); }
.grade.good  b { color: var(--secondary); }
.grade.easy  b { color: var(--success); }
.grade.easy { border: 1px solid var(--success); }

/* 08 错题本：卡片列表 */
.mist-filters { margin-top: 2px; }
.mist-card .mist-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.mist-card .mist-times { font-size: 11px; font-weight: 800; color: var(--error-text); }
.mist-card .mist-stem { font-size: 15px; line-height: 2; margin-bottom: 6px; }
.mist-card .mist-ans { font-size: 13px; color: var(--success-text); margin-bottom: 10px; }
.mist-card .mist-act { display: flex; gap: 8px; }

/* 触感反馈 */
.tabbar button:active, .gc-row:active, .mg-card:active, .ml-row:active,
.gc-go:active { transform: scale(.98); }

@media (max-width: 768px) {
  body.has-tabbar .tabbar:not([hidden]) { display: flex; }
  body.has-tabbar main { padding-bottom: 88px; }
  body.has-tabbar .site-footer { padding-bottom: 96px; }
  body.has-tabbar .mobile-tabs { display: none !important; }
  body.has-tabbar nav.tabs { display: none !important; }
  /* 顶栏收纳：用户信息/语言/深色/退出 收进「我的」与抽屉，仅留 等级 + ☰ */
  body.has-tabbar .userbox .who, body.has-tabbar .userbox .user-title,
  body.has-tabbar #darkBtn, body.has-tabbar #logoutBtn, body.has-tabbar #langBtn { display: none !important; }
  body.has-tabbar .userbox { margin-left: auto; gap: 6px; }
  body.has-tabbar .level-switch button { padding: 4px 8px; font-size: 11px; }
  /* 首页重排：隐藏旧标题/统计格/开始卡，显示 mdash */
  body.has-tabbar #view-dash > .title, body.has-tabbar #view-dash > .sub,
  body.has-tabbar #statGrid, body.has-tabbar #startCard { display: none; }
  body.has-tabbar .mdash { display: flex; }
  /* 04 学习卡 */
  .flash { border-radius: 18px; padding: 24px 22px; }
  .flash .kanji { font-size: 2.9rem; }
  .flash-actions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
  .flash-actions .grade { min-height: 64px; border-radius: 12px; padding: 8px 4px; }
  .flash-actions .btn { grid-column: 1 / -1; }
  .opt { min-height: 54px; border-radius: 12px; font-size: 1.02rem; }
  /* 05 词库搜索 */
  .browse-search { max-width: none; height: 44px; }
}

/* ── 重设计 v3：复习优先首页 / 分组游戏中心 / 去间隔去连击 / 错题小胶囊 / 掌握度竖条 ── */
body.dark { --shadow: none; }                              /* 深色不用阴影，靠 1px 边框分层 */
rt { font-size: max(.58em, 11px); color: var(--text-1); }  /* 振仮名 ≥11px、主文字色 */

.mdash-main {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 14px;
}
.mdash-main .mm-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.mdash-main .mm-l { font-size: 12px; font-weight: 800; color: var(--ink-2); }
.mdash-main .mm-n { font-size: 48px; font-weight: 800; line-height: 1; color: var(--shu); margin-top: 4px; }
.mdash-main .mm-n span { font-size: 14px; font-weight: 700; color: var(--ink-2); margin-left: 6px; }
.mdash-main .mm-streak { text-align: right; }
.mdash-main .mm-streak .mm-l { font-size: 11px; }
.mdash-main .mm-sn { font-size: 22px; font-weight: 800; line-height: 1.2; }
.mdash-main .mm-sn small { font-size: 12px; color: var(--ink-2); font-weight: 700; }
.mdash-main .mm-tags { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.mdash-main .mm-tag { font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 6px; background: var(--surface-2); color: var(--ink-2); }
.mdash-main .mm-tag.err { background: var(--error-soft); color: var(--error-text); }
.mdash-main .mm-tag.right { margin-left: auto; background: none; padding: 0; }
.mdash-main .md-start {
  height: 48px; border: 0; border-radius: 10px; cursor: pointer;
  background: var(--shu); color: #fff; font: inherit; font-size: 15px; font-weight: 800;
}
.mdash-sec .sub-cnt { font-size: 12px; color: var(--ink-2); font-weight: 600; margin-left: 6px; }

.mdash-task {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px; cursor: pointer;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
}
.mdash-task .gk { width: 48px; height: 48px; font-size: 24px; border-radius: 12px; }
.mdash-task .mtk-txt { flex: 1; min-width: 0; }
.mdash-task .mtk-t { font-size: 14px; font-weight: 800; }
.mdash-task .mtk-s { font-size: 11px; color: var(--ink-2); margin-top: 2px; }

.gc-group-title { font-size: 11px; font-weight: 800; color: var(--text-3); letter-spacing: .06em; margin: 14px 0 8px 4px; }
.gc-group-title:first-child { margin-top: 0; }
.gc-row { padding: 10px 14px; }
.gc-row .gk { width: 44px; height: 44px; font-size: 22px; border-radius: 12px; }
.gc-row .gc-name { font-size: 14px; }

.mist-pill {
  display: inline-block; font-size: 10px; font-weight: 800; padding: 2px 8px; border-radius: 6px;
  background: var(--warning-soft); color: var(--warning-text); border: 1px solid var(--warning);
  margin-bottom: 6px; animation: fade .15s;
}

.grade-hint { flex: 1 0 100%; grid-column: 1 / -1; text-align: center; font-size: 10px; color: var(--text-3); margin-top: 2px; }
.study-eta { font-size: .75rem; color: var(--ink-2); font-weight: 500; }
.bf-legend { margin-left: auto; align-self: center; font-size: 10px; color: var(--text-3); }

@media (max-width: 768px) {
  .flash-actions .grade { min-height: 56px; }
  .flash-actions .grade small { display: none; }               /* 不显示下次间隔，凭第一反应打分 */
  body.has-tabbar .quiz-progress span:has(#quizCombo) { display: none; }   /* 单项练习无连对计数 */
  /* 词库：左侧 4px 掌握度竖条，右侧状态 pill 隐去 */
  body.has-tabbar #browseTable tr[data-srs] { border-left: 4px solid transparent; border-radius: 0 12px 12px 0; }
  body.has-tabbar #browseTable tr[data-srs="learning"] { border-left-color: var(--primary-soft); }
  body.has-tabbar #browseTable tr[data-srs="mastered"] { border-left-color: var(--primary); }
  body.has-tabbar #browseTable .c-state { display: none; }
}
/* v3 修正：开始胶囊在任务横卡等处也着色；手机端 ☰ 与品牌同行，等级切换单独一行 */
.gc-go {
  height: 32px; padding: 0 14px; border-radius: 999px; border: 0; cursor: pointer;
  background: var(--primary-soft); color: var(--shu); font: inherit; font-size: 12px; font-weight: 800; flex: 0 0 auto;
}
@media (max-width: 680px) {
  body.has-tabbar header.topbar .userbox { order: 2; flex: 0 0 auto; margin-left: auto; }
}


/* ── 审核修复：底栏层级契约 + 触控尺寸 + 首页三态 + 长名截断 ── */
.mdash-notice {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: var(--shadow); padding: 18px 16px;
}
.mdash-notice.err { border-left: 4px solid var(--warning); }
.mdash-notice .mn-title { font-size: 16px; font-weight: 800; }
.mdash-notice .mn-sub { font-size: 12.5px; color: var(--ink-2); margin-top: 6px; line-height: 1.6; }
.mdash-notice .mn-acts { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.mdash-notice .mn-acts .btn { min-height: 44px; }
.mdash-skel .skeleton-row { margin-bottom: 10px; }

/* 长用户名/问候语不撑破布局（后端允许 50 字符）*/
.mdash-head > div, .me-head > div { min-width: 0; }
.mdash-head .mh-name, .me-head .me-name {
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

@media (max-width: 768px) {
  /* 固定底栏与既有浮层的层级契约：谁都不许压住导航，导航也不许压住页面内容 */
  body.has-tabbar main { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  body.has-tabbar .site-footer { padding-bottom: calc(84px + env(safe-area-inset-bottom)); }
  body.has-tabbar #toastWrap { bottom: calc(84px + env(safe-area-inset-bottom)); }
  body.has-tabbar .a2hs-banner { bottom: calc(76px + env(safe-area-inset-bottom)); }
  body.has-tabbar .submit-sticky { bottom: calc(64px + env(safe-area-inset-bottom)); }
  /* 首页已有「开始复习」主卡，到期提醒卡在手机端是重复 CTA */
  body.has-tabbar #dueReminderPanel { display: none; }
  /* 触控目标 ≥44px（导航是全站点击频次最高的元素）*/
  .tabbar { padding: 4px 8px calc(4px + env(safe-area-inset-bottom)); }
  .tabbar button { min-height: 48px; justify-content: center; }
  .browse-filters button { min-height: 40px; display: inline-flex; align-items: center; }
  .gc-row .gc-go { min-height: 36px; }
  .pw-wrap .pw-toggle { padding: 12px 8px; }
}

/* 底部导航激活态：颜色之外再加一条指示条（色觉障碍/强光下也能分辨）*/
.tabbar button { position: relative; }
.tabbar button.active::before {
  content: ''; position: absolute; top: -4px; left: 50%; transform: translateX(-50%);
  width: 22px; height: 3px; border-radius: 0 0 3px 3px; background: var(--shu);
}

/* 「竖条 = 掌握度」图例只在手机端成立：桌面列表用的是状态胶囊 */
@media (min-width: 769px) { .bf-legend { display: none; } }

/* 首页「用游戏复习」（T19）：主按钮下方的次按钮 */
.mdash-main .md-game { height: 44px; border-radius: 10px; cursor: pointer; background: transparent; color: var(--shu); border: 1.5px solid var(--shu); font: inherit; font-size: 14px; font-weight: 800; }