:root {
  /* 墨階（濃淡乾濕清五色） */
  --ink-jiao:#1a1613; --ink-nong:#2b2420; --ink-zhong:#4a4038;
  --ink-dan:#6b5f52; --ink-qing:#b8ab9c; --ink-xi:#d9cfc0; /* ink-dan 已加深至對宣紙 ~5.5:1，供小字達 WCAG AA */

  /* 宣紙 */
  --paper:#f7f2e7; --paper-warm:#efe6d3; --paper-aged:#e6d9bf;

  /* 點綴色 */
  --zhu:#9e3b2c; --zhu-light:#c85a45;
  --yan:#8a3d4a;
  --qing-shi:#3a5a6e; --qing-shi-light:#5c7f94;
  --dai:#3b5d4f;

  --accent: var(--zhu);
  --accent2: var(--dai);
  --ink: var(--ink-nong);
  --line: var(--ink-xi);

  --font-brush:"Ma Shan Zheng","LXGW WenKai TC",cursive;
  --font-read:"Noto Serif TC","LXGW WenKai TC",serif;
  --font-ui:"Noto Sans TC",system-ui,sans-serif;

  --shadow-paper:0 6px 18px rgba(26,22,19,.10);
  --shadow-lift:0 10px 30px rgba(26,22,19,.16);
}

* { box-sizing: border-box; }
.sr-only{ position:absolute!important; width:1px!important; height:1px!important; padding:0!important; margin:-1px!important; overflow:hidden!important; clip:rect(0,0,0,0)!important; white-space:nowrap!important; border:0!important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font-ui);
  background:
    radial-gradient(ellipse 60% 40% at 8% 6%, rgba(74,64,56,.05), transparent 60%),
    radial-gradient(ellipse 50% 35% at 95% 100%, rgba(74,64,56,.04), transparent 60%),
    var(--paper);
  color: var(--ink);
  min-height: 100vh;
}

/* 宣紙底噪紋理，全站僅此一層 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .05;
  mix-blend-mode: multiply;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="128" height="128"><filter id="n"><feTurbulence type="fractalNoise" baseFrequency="0.9" numOctaves="2" stitchTiles="stitch"/><feColorMatrix type="saturate" values="0"/></filter><rect width="100%25" height="100%25" filter="url(%23n)"/></svg>');
}

header, nav.tabs, main, footer { position: relative; z-index: 1; }

/* 首頁 hero：水墨橫幅主視覺（右側遠山書卷）＋左向宣紙漸層讓標題清晰 */
header.hero {
  position: relative;
  padding: 0;
  min-height: 216px;
  display: flex;
  align-items: flex-start;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(100deg, var(--paper) 0%, rgba(247,242,231,.94) 24%, rgba(247,242,231,.55) 44%, rgba(247,242,231,.12) 60%, transparent 74%),
    url('../assets/hero/wy-hero.jpg') right center / cover no-repeat,
    var(--paper);
}
header.hero .header-row {
  width: 100%;
  padding: 22px 16px;
  align-items: flex-start;
}
.hero-title { max-width: 62%; }
header.hero h1 {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 2.6rem;
  line-height: 1.04;
  letter-spacing: .1em;
  color: var(--ink-jiao);
  text-shadow: 0 1px 0 rgba(247,242,231,.8);
}
.hero-tag {
  margin: 12px 0 0;
  font-family: var(--font-brush);
  font-size: 1.2rem;
  letter-spacing: .14em;
  color: var(--zhu);
}
.hero-sub {
  margin: 7px 0 0;
  color: var(--ink-dan);
  font-size: .8rem;
  letter-spacing: .04em;
}
/* HUD／新手鈕疊在水墨上，給實心宣紙底確保可讀 */
header.hero .ink-hud { background: var(--paper); box-shadow: 0 1px 5px rgba(26,22,19,.14); }
header.hero .guide-reopen { box-shadow: 0 1px 5px rgba(26,22,19,.12); }

nav.tabs {
  display: flex;
  overflow-x: auto;
  gap: 2px;
  padding: 6px 4px 0;
  background: var(--paper-warm);
  border-bottom: 1px solid var(--line);
}

nav.tabs button {
  flex: 1;
  min-width: 68px;
  padding: 10px 6px 12px;
  border: none;
  border-radius: 8px 8px 0 0;
  background: transparent;
  font-family: var(--font-ui);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  color: var(--ink-dan);
  border-bottom: 3px solid transparent;
  transition: color .15s, background-color .15s;
}

nav.tabs button:hover { color: var(--ink-zhong); background: rgba(74,64,56,.05); }

nav.tabs button.active {
  color: var(--zhu);
  font-weight: 700;
  background: var(--paper);
  border-bottom-color: var(--zhu);
}

/* 印章式 active 標記，不只靠顏色區分 */
nav.tabs button.active::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  margin-left: 4px;
  border-radius: 1px;
  background: var(--zhu);
  vertical-align: middle;
}

main { padding: 16px; max-width: 720px; margin: 0 auto; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 18px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-paper);
  position: relative;
}

/* 卡片四角淡墨飛白 */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 4px;
  pointer-events: none;
  background:
    radial-gradient(ellipse 40% 30% at 0% 0%, rgba(74,64,56,.10), transparent 70%),
    radial-gradient(ellipse 40% 30% at 100% 100%, rgba(74,64,56,.08), transparent 70%);
}

.card h2, .card h3 {
  font-family: var(--font-brush);
  font-weight: 400;
  letter-spacing: .05em;
  color: var(--ink-jiao);
  margin-top: 0;
}

.text-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: box-shadow .15s, transform .15s;
}

.text-list-item:hover { box-shadow: var(--shadow-lift); transform: translateY(-1px); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 3px;
  font-size: .75rem;
  background: var(--qing-shi);
  color: #fff;
  letter-spacing: .03em;
}

.passage {
  font-family: var(--font-read);
  font-size: 1.15rem;
  line-height: 2.05;
  letter-spacing: .04em;
  white-space: pre-wrap;
  color: var(--ink-jiao);
}

.options button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  margin: 6px 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: .95rem;
  color: var(--ink);
  transition: border-color .15s, background-color .15s;
}

.options button:hover:not(:disabled) { border-color: var(--ink-qing); background: var(--paper-warm); }
.options button:disabled { cursor: default; }

.options button.correct {
  background: rgba(59,93,79,.10);
  border-color: var(--dai);
  border-width: 2px;
  font-weight: 700;
}
.options button.correct::before { content: "✓ "; color: var(--dai); }

.options button.wrong {
  background: rgba(138,61,74,.08);
  border-color: var(--yan);
  border-width: 2px;
}
.options button.wrong::before { content: "✗ "; color: var(--yan); }

.hp-bar {
  height: 14px;
  border-radius: 3px;
  background: var(--paper-aged);
  border: 1px solid var(--line);
  overflow: hidden;
  margin: 4px 0 10px;
}
.hp-fill { height: 100%; background: var(--dai); transition: width .35s ease-out; }
.hp-fill.enemy { background: var(--zhu); }

button.primary {
  background: var(--zhu);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: .95rem;
  letter-spacing: .02em;
  transition: background-color .15s, transform .1s;
}
button.primary:hover { background: var(--zhu-light); }
button.primary:active { transform: scale(.97); }

/* 閃卡翻面 */
.flashcard {
  perspective: 1200px;
  cursor: pointer;
  min-height: 180px;
  margin: 10px 0;
}
.flashcard-inner {
  position: relative;
  width: 100%;
  min-height: 180px;
  display: grid;                 /* 兩面同格堆疊：容器高度自動取較高的一面，長解析不再溢出 */
  transition: transform .5s cubic-bezier(.4,.2,.2,1);
  transform-style: preserve-3d;
}
.flashcard.flipped .flashcard-inner { transform: rotateY(180deg); }
.flashcard-face {
  grid-area: 1 / 1;              /* 兩面重疊在同一格 */
  min-width: 0;                  /* 允許長內文換行，不被 grid 撐爆 */
  backface-visibility: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px;
  overflow-wrap: break-word;     /* 超長不斷詞的內容仍能斷行 */
}
.flashcard-front {
  background: var(--paper);
}
.flashcard-back {
  transform: rotateY(180deg);
  background:
    radial-gradient(ellipse 60% 50% at 20% 15%, rgba(74,64,56,.16), transparent 65%),
    radial-gradient(ellipse 55% 45% at 85% 85%, rgba(158,59,44,.10), transparent 65%),
    var(--paper-warm);
}
.flashcard-back .hint-label {
  font-family: var(--font-brush);
  color: var(--zhu);
  margin: 0 0 8px;
  font-size: 1.1rem;
}
.flip-hint {
  display: block;
  margin-top: 10px;
  font-size: .75rem;
  color: var(--ink-dan);
}

/* 對戰對手選單 */
.opponent-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
  margin: 10px 0;
}
.opponent-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: .85rem;
  color: var(--ink);
}
.opponent-card img {
  width: 72px; height: 72px;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  border: 2px solid var(--zhu);
  background: var(--paper-warm);
}
.opponent-card.locked { opacity: .45; cursor: not-allowed; }
.opponent-card.locked img { border-color: var(--ink-qing); filter: grayscale(.6); }

.battle-vs {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.battle-portrait {
  width: 64px; height: 64px;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  border: 2px solid var(--zhu);
  flex-shrink: 0;
}

.wenhao-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.wenhao-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 10px;
  text-align: center;
  background: var(--paper);
  box-shadow: var(--shadow-paper);
}
.wenhao-no {
  position: absolute;
  top: 6px; left: 8px;
  font-size: .75rem;
  color: var(--ink-dan);
  letter-spacing: .05em;
}
.wenhao-card strong { font-family: var(--font-brush); font-weight: 400; letter-spacing: .04em; }
.wenhao-card.locked { opacity: 0.42; filter: grayscale(.3); }
.wenhao-portrait {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: top center;
  border-radius: 4px;
  margin-bottom: 8px;
  border: 1px solid var(--line);
}

/* 選文詳情頁：逐段原文 + 語譯/注釋/賞析三分頁 */
.link-back {
  background: none;
  border: none;
  color: var(--qing-shi);
  font-family: var(--font-ui);
  font-size: .85rem;
  cursor: pointer;
  padding: 0 0 8px;
  display: block;
}
.link-back:hover { color: var(--zhu); }

.segment-block { padding-bottom: 14px; }
.segment-original { margin-bottom: 10px; }

.seg-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 10px;
}
.seg-tab-btn {
  flex: 1 1 0;
  min-width: 0;
  border: none;
  background: transparent;
  padding: 10px 12px;
  min-height: 44px;
  font-family: var(--font-ui);
  font-size: .82rem;
  color: var(--ink-dan);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.seg-tab-btn:hover { color: var(--ink-zhong); }
.seg-tab-btn.active {
  color: var(--zhu);
  font-weight: 700;
  border-bottom-color: var(--zhu);
}

.seg-translation, .seg-note {
  font-family: var(--font-read);
  font-size: .98rem;
  line-height: 1.9;
  color: var(--ink-zhong);
}

.seg-attempt {
  padding: 12px 14px;
  border-left: 3px solid var(--zhu);
  border-radius: 6px;
  background: rgba(158,59,44,.05);
  color: var(--ink-zhong);
}

.seg-attempt p {
  margin: 6px 0 0;
  line-height: 1.75;
}

.seg-understanding-choices,
.seg-choice-grid,
.seg-piece-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.seg-understanding-choices button,
.seg-micro-judgment button,
.seg-paraphrase-choices button,
.seg-return-flow {
  min-height: 44px;
  padding: 9px 13px;
  border: 1px solid var(--ink-qing);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink-nong);
  cursor: pointer;
  font: inherit;
}

.seg-understanding-choices button {
  flex: 1 1 160px;
  font-weight: 700;
}

.seg-understanding-choices button[aria-pressed="true"],
.seg-micro-judgment button[aria-pressed="true"],
.seg-paraphrase-choices button[aria-pressed="true"] {
  border-color: var(--dai);
  background: var(--dai);
  color: #fff;
}

.seg-micro-judgment,
.seg-paraphrase-choices {
  min-width: 0;
  margin: 14px 0 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.seg-micro-judgment legend,
.seg-paraphrase-choices legend {
  padding: 0 5px;
  color: var(--dai);
  font-weight: 700;
}

.seg-micro-judgment button {
  flex: 1 1 210px;
  text-align: left;
}

.seg-micro-judgment button span {
  display: block;
  margin-top: 3px;
  font-size: .78rem;
  line-height: 1.5;
}

.seg-paraphrase-choices button { flex: 1 1 76px; }
.seg-flow-status { min-height: 1.7em; color: var(--dai); }
.seg-flow-ready { padding: 8px 10px; border-left: 3px solid var(--dai); background: var(--paper-warm); }
.seg-piece-hint { color: var(--dai); }
.optional-paraphrase { margin-top: 12px; }
.optional-paraphrase summary { min-height: 44px; padding: 10px 0; cursor: pointer; color: var(--qing-shi); font-weight: 700; }
.seg-translation-reminder { padding: 10px 12px; border-left: 3px solid var(--qing-shi); background: var(--paper-warm); }
.seg-return-flow { margin-top: 8px; color: var(--dai); font-weight: 700; }

.glossary-list {
  margin: 0;
  padding-left: 1.1em;
  font-size: .92rem;
  line-height: 1.9;
  color: var(--ink-zhong);
}
.glossary-list strong { color: var(--zhu); font-family: var(--font-read); }

/* 連續學習天數徽章 */
.streak-banner {
  text-align: center;
  font-family: var(--font-brush);
  font-size: 1.05rem;
  color: var(--zhu);
  padding: 10px 18px;
}

/* 自測題型分頁 */
.quiz-type-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.quiz-type-btn {
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 6px;
  padding: 8px 12px;
  min-height: 40px;
  font-size: .82rem;
  color: var(--ink-dan);
  cursor: pointer;
}
.quiz-type-btn:hover { border-color: var(--ink-qing); }
.quiz-type-btn.active {
  background: var(--zhu);
  border-color: var(--zhu);
  color: #fff;
  font-weight: 700;
}

/* 對戰打擊回饋：傷害飄字、震動、combo橫幅 */
.battle-vs { position: relative; }
.dmg-float {
  position: absolute;
  top: 0; left: 30px;
  font-family: var(--font-brush);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--zhu);
  pointer-events: none;
  animation: dmgFloat .9s ease-out forwards;
}
.dmg-float.dmg-hurt { color: var(--yan); left: auto; right: 30px; }
@keyframes dmgFloat {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-36px); }
}

.battle-card.shake { animation: battleShake .3s; }
@keyframes battleShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
}

.combo-banner {
  position: fixed;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-brush);
  font-size: 2rem;
  color: var(--zhu);
  text-shadow: 0 0 12px rgba(158,59,44,.4);
  pointer-events: none;
  z-index: 10;
  animation: comboPop .9s ease-out forwards;
}
@keyframes comboPop {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(.6); }
  20% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  35% { transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1); }
}

/* ── 改版新增：墨錠 HUD／飄字／引導卡／儀表板／硯靈行商 ── */
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ink-hud {
  position: relative;
  font-family: var(--font-brush);
  font-size: 1.15rem;
  color: var(--zhu);
  background: rgba(158,59,44,.08);
  border: 1px solid var(--ink-xi);
  border-radius: 999px;
  padding: 4px 14px;
  white-space: nowrap;
}
.ink-float {
  position: absolute;
  top: -4px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-brush);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--zhu);
  pointer-events: none;
  z-index: 5;
  animation: dmgFloat .95s ease-out forwards;
}
.options button { position: relative; }
.ink-cap-note { color: var(--ink-dan); font-size: .82rem; }

.tab-sep { display: inline-block; width: 1px; align-self: center; height: 18px; background: var(--ink-xi); margin: 0 2px; }

.guide-card { border-left: 4px solid var(--zhu); position: relative; }
.guide-card h3 { margin: 0 0 6px; color: var(--ink-jiao); }
.guide-steps { margin: 0; padding-left: 20px; line-height: 1.9; }
.guide-more { margin: 8px 0 0; font-size: .85rem; color: var(--ink-dan); }
.guide-close {
  position: absolute; top: 8px; right: 10px;
  border: none; background: none; font-size: 1.3rem; line-height: 1;
  color: var(--ink-dan); cursor: pointer;
}

.dash-card summary { cursor: pointer; font-weight: 500; color: var(--ink-zhong); }
.dash-card summary small { color: var(--ink-dan); font-weight: 400; }
.dash-body { margin-top: 10px; }
.dash-row { display: flex; align-items: center; gap: 8px; margin: 5px 0; }
.dash-type { flex: 0 0 4.5em; font-size: .9rem; color: var(--ink-zhong); }
.dash-track { flex: 1; height: 10px; background: var(--ink-xi); border-radius: 6px; overflow: hidden; }
.dash-fill { display: block; height: 100%; border-radius: 6px; }
.dash-fill.dash-good { background: #4a7c59; }
.dash-fill.dash-mid  { background: #c89b3c; }
.dash-fill.dash-low  { background: var(--zhu); }
.dash-fill.dash-na   { background: var(--ink-qing); }
.dash-num { flex: 0 0 auto; font-size: .82rem; color: var(--ink-zhong); min-width: 5.5em; text-align: right; }
.dash-num small { color: var(--ink-dan); }
.dash-advice { margin: 10px 0 4px; font-size: .88rem; color: var(--ink-zhong); }
.dash-parent { margin-top: 8px; }
.dash-parent summary { cursor: pointer; font-size: .85rem; color: var(--zhu); }
.dash-parent p { font-size: .85rem; line-height: 1.75; color: var(--ink-zhong); margin: 8px 0 0; }

.mkt-yanling-head .mkt-sub { margin: 0; }

.detail-cta { border-top: 2px solid var(--zhu); text-align: center; }
.detail-cta-hint { margin: 0 0 10px; color: var(--ink-zhong); font-size: .9rem; }
.detail-cta-btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.detail-cta-btns button { flex: 1 1 40%; min-width: 130px; }
.quiz-focus { font-size: 1rem; color: var(--ink-jiao); margin: 0 0 8px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.quiz-focus .link-back { font-size: .8rem; }
.quiz-note { border-left: 4px solid var(--zhu); color: var(--ink-zhong); font-size: .9rem; }

/* ── 全域鍵盤焦點指示（a11y：div/button 皆可見）── */
:focus-visible { outline: 2px solid var(--zhu); outline-offset: 2px; border-radius: 3px; }
.text-list-item:focus-visible, .flashcard:focus-visible { box-shadow: var(--shadow-lift); }

/* header 工具區：新手教學「?」＋墨錠 HUD */
.header-tools { display: flex; align-items: center; gap: 8px; }
.guide-reopen {
  width: 30px; height: 30px; flex-shrink: 0;
  border: 1px solid var(--ink-xi); border-radius: 50%;
  background: var(--paper); color: var(--ink-dan);
  font-family: var(--font-brush); font-size: 1.05rem; line-height: 1;
  cursor: pointer;
}
.guide-reopen:hover { color: var(--zhu); border-color: var(--zhu); }
.teacher-launch {
  min-height: 44px; padding: 8px 12px; border: 1px solid var(--dai); border-radius: 8px;
  background: var(--paper); color: var(--dai); font-family: var(--font-ui); font-weight: 700;
  cursor: pointer; white-space: nowrap; box-shadow: 0 1px 5px rgba(26,22,19,.12);
}
.teacher-launch:hover { background: var(--paper-warm); border-color: var(--zhu); color: var(--zhu); }
.ink-today { display: block; font-family: var(--font-ui); font-size: .75rem; font-weight: 500; color: var(--ink-dan); letter-spacing: .02em; margin-top: 1px; }
.ink-today-full { color: var(--zhu); }

/* 次級導覽（江湖：草堂/擂台/合契/市集），視覺弱化以突顯主線 */
nav.tabs.tabs-sub { padding-top: 2px; padding-bottom: 2px; align-items: center; }
nav.tabs.tabs-sub button { flex: 1; font-size: .82rem; padding: 7px 6px 8px; min-height:44px; color: var(--ink-dan); }
nav.tabs.tabs-sub button.active { color: var(--zhu); background: var(--paper); }
.tabs-sub-label {
  flex: 0 0 auto; font-family: var(--font-brush); font-size: .8rem;
  color: var(--ink-dan); padding: 0 6px 0 2px; letter-spacing: .1em;
}

/* 拆分學段／精通率徽章 */
.badge-group { display: inline-flex; align-items: center; gap: 4px; flex-shrink: 0; }
.badge-level {
  display: inline-block; padding: 2px 8px; border-radius: 3px;
  font-size: .72rem; border: 1px solid var(--qing-shi); color: var(--qing-shi);
  background: rgba(58,90,110,.06); letter-spacing: .03em;
}
.badge-pct {
  display: inline-block; padding: 2px 8px; border-radius: 3px;
  font-size: .72rem; background: var(--paper-warm); color: var(--ink-zhong);
  border: 1px solid var(--line);
}

/* 合契坊新手導流 */
.fusion-onboard {
  margin: 8px 0 0; padding: 8px 10px; font-size: .85rem; line-height: 1.7;
  color: var(--ink-zhong); background: rgba(158,59,44,.05);
  border-left: 3px solid var(--zhu); border-radius: 3px;
}
.fusion-onboard .fusion-mini-btn { margin-left: 4px; }

/* 自測「對照原文」面板（B8：作答時把原文帶回現場） */
.quiz-source > summary { cursor: pointer; font-size: .9rem; color: var(--zhu); font-weight: 500; list-style: none; }
.quiz-source > summary::-webkit-details-marker { display: none; }
.quiz-source > summary::before { content: '▸ '; }
.quiz-source[open] > summary::before { content: '▾ '; }
.quiz-source .passage { margin-top: 8px; }

/* 填空生成題（B1 generation effect） */
.cloze-hint { color: var(--ink-dan); font-size: .9rem; margin: 6px 0 0; }
.cloze-prompt { font-size: 1.15rem; line-height: 1.9; margin: 10px 0; }
.cloze-input-row { display: flex; gap: 8px; margin-top: 10px; }
.cloze-input { flex: 1; padding: 10px 12px; font-size: 1.05rem; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink-jiao); font-family: inherit; min-height: 40px; }
.cloze-input:focus { outline: 2px solid var(--zhu); outline-offset: 1px; }
.cloze-input.correct { border-color: #3c7a4e; background: rgba(60,122,78,.08); }
.cloze-input.wrong { border-color: var(--zhu); background: rgba(158,59,44,.08); }

@media (max-width: 480px) {
  main { padding: 10px; }
  header.hero { min-height: 150px; }
  header.hero .header-row { gap: 6px; }
  header.hero h1 { font-size: 2rem; }
  .hero-tag { font-size: 1.02rem; letter-spacing: .1em; }
  .hero-sub { font-size: .74rem; }
  .hero-title { max-width: 50%; }
  .header-tools { flex: 0 0 46%; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
  .ink-hud { font-size: 1rem; padding: 3px 11px; }
  .teacher-launch { flex: 1 0 100%; padding: 7px 9px; font-size: .82rem; }
}


/* ============ 遊戲化改版（十專家綜合 14 項）新元件 ============ */

/* 首屏：新手起手卡 */
.start-card{ text-align:center; padding:24px 18px; background:linear-gradient(180deg,var(--paper-warm),var(--paper)); cursor:pointer; }
.start-card:hover{ box-shadow:var(--shadow-lift); }
.start-kicker{ display:block; font-size:.82rem; color:var(--zhu); margin-bottom:.4em; }
.start-card strong{ font-family:var(--font-brush); font-size:1.35rem; }
.start-sub{ color:var(--ink-dan); margin:.5em 0 0; font-size:.9rem; }
.list-heading{ margin:14px 4px 6px; color:var(--ink-dan); font-size:.86rem; }

/* 學習連續里程碑 */
@keyframes milestone-in{ 0%{ transform:scale(.6); opacity:0; } 40%{ transform:scale(1.04); opacity:1; } 100%{ transform:scale(1); opacity:1; } }
.streak-milestone{ text-align:center; font-family:var(--font-brush); font-size:1.15rem; color:#fff; background:linear-gradient(90deg,var(--yan),var(--zhu)); animation:milestone-in .5s ease-out; }

/* 回訪狀態卡：續玩／待複習／錯題本 */
.home-status-wrap{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:12px; }
.home-status{ flex:1 1 30%; min-width:150px; display:flex; align-items:center; gap:10px; text-align:left; padding:13px 14px; border:1px solid var(--line); border-radius:14px; background:var(--paper); cursor:pointer; transition:transform .1s,box-shadow .15s; font:inherit; color:inherit; }
.home-status:hover{ transform:translateY(-2px); box-shadow:var(--shadow-paper); }
.home-status .hs-icon{ font-size:1.25rem; }
.home-status .hs-text{ display:flex; flex-direction:column; }
.home-status .hs-text b{ color:var(--ink-nong); font-size:.95rem; }
.home-status .hs-text small{ color:var(--ink-dan); font-size:.74rem; margin-top:2px; }
.home-continue{ border-left:4px solid var(--qing-shi); }
.home-due{ border-left:4px solid var(--dai); }
.home-wrong{ border-left:4px solid var(--zhu); }

/* 文名／道行段位條 */
.renown-bar{ padding:13px 15px; }
.renown-top{ display:flex; justify-content:space-between; align-items:baseline; gap:8px; }
.renown-name{ font-family:var(--font-brush); font-size:1.1rem; color:var(--zhu); }
.renown-name small{ font-family:var(--font-ui); color:var(--ink-dan); font-size:.78rem; }
.renown-tier{ font-size:.78rem; color:var(--ink-dan); white-space:nowrap; }
.renown-track{ display:block; height:10px; border-radius:999px; background:var(--paper-aged); overflow:hidden; margin:8px 0 6px; }
.renown-fill{ display:block; height:100%; background:linear-gradient(90deg,var(--dai),var(--zhu)); }
.renown-foot{ font-size:.78rem; color:var(--ink-dan); }

/* 心情選文 */
.mood-picker{ padding:13px 15px; }
.mood-title{ font-size:.9rem; color:var(--ink-zhong); margin:0 0 8px; font-family:var(--font-brush); }
.mood-chips{ display:flex; flex-wrap:wrap; gap:6px; }
.mood-chip{ padding:.35em .85em; min-height:44px; display:inline-flex; align-items:center; border:1px solid var(--ink-qing); border-radius:999px; background:var(--paper); color:var(--ink-zhong); font-size:.85rem; cursor:pointer; transition:background .15s; }
.mood-chip:hover{ background:var(--paper-aged); }
.mood-chip.active{ background:var(--yan); color:#fff; border-color:var(--yan); }
.mood-hint{ margin:8px 0 0; font-size:.82rem; color:var(--ink-dan); }
.mood-clear{ border:none; background:none; color:var(--zhu); cursor:pointer; text-decoration:underline; font-size:.82rem; }

/* 選文清單「就差 N 題」nudge */
.badge-nudge{ display:inline-block; padding:.15em .55em; border-radius:6px; font-size:.72rem; background:var(--zhu); color:#fff; }

/* 班級文氣進度條 */
.class-goal{ padding:13px 15px; }
.cg-title{ font-family:var(--font-brush); font-size:1rem; color:var(--ink-zhong); margin:0 0 8px; }
.cg-title small{ font-family:var(--font-ui); color:var(--ink-dan); font-size:.76rem; }
.cg-track{ display:block; height:12px; border-radius:999px; background:var(--paper-aged); overflow:hidden; }
.cg-fill{ display:block; height:100%; background:linear-gradient(90deg,var(--qing-shi),var(--dai)); }
.cg-foot{ font-size:.8rem; color:var(--ink-zhong); margin:6px 0 0; }

/* 備份／還原 */
.dash-backup-note{ font-size:.82rem; color:var(--ink-dan); }
.dash-backup-btns{ display:flex; gap:8px; flex-wrap:wrap; }
.dash-backup-btns button{ font-size:.82rem; padding:.45em .9em; }
.dash-backup-box{ width:100%; min-height:64px; margin-top:8px; font-size:.75rem; border:1px solid var(--line); border-radius:8px; padding:6px; box-sizing:border-box; }

/* 此篇之憂 */
.worry-card{ background:linear-gradient(180deg,var(--paper-warm),var(--paper)); border-left:4px solid var(--yan); }
.worry-label{ font-size:.76rem; color:var(--yan); letter-spacing:.1em; margin:0 0 .3em; }
.worry-ancient{ font-family:var(--font-read); font-size:1.02rem; color:var(--ink-nong); margin:.1em 0 .4em; line-height:1.6; }
.worry-echo{ color:var(--ink-dan); font-size:.9rem; margin:0; }

/* 「怎麼讀這一篇」閱讀理解策略卡 */
.strategy-card{ background:linear-gradient(180deg,var(--paper-warm),var(--paper)); border-left:4px solid var(--dai); padding:0; overflow:hidden; }
.strategy-summary{ cursor:pointer; list-style:none; padding:14px 16px; font-family:var(--font-brush); font-size:1.05rem; color:var(--dai); font-weight:700; display:flex; align-items:baseline; flex-wrap:wrap; gap:.5em; }
.strategy-summary::-webkit-details-marker{ display:none; }
.strategy-summary::after{ content:'▸'; margin-left:auto; transition:transform .2s; color:var(--ink-dan); }
.strategy-card[open] .strategy-summary::after{ transform:rotate(90deg); }
.strategy-hint{ font-family:var(--font-body,inherit); font-size:.74rem; font-weight:400; color:var(--ink-dan); letter-spacing:.04em; }
.strategy-body{ padding:2px 16px 16px; }
.strategy-sub{ font-size:.8rem; color:var(--zhu); letter-spacing:.06em; margin:.8em 0 .35em; font-weight:700; }
.strategy-tools{ display:flex; flex-wrap:wrap; gap:8px; }
.strategy-tool{ min-height:44px; padding:.5em .9em; border:1px solid var(--ink-qing); border-radius:999px; background:var(--paper); color:var(--ink-nong); cursor:pointer; font-size:.84rem; }
.strategy-tool:hover,.strategy-tool:focus-visible{ background:var(--paper-aged); border-color:var(--dai); }
.strategy-tool-hint,.seg-issue-hint{ min-height:1.5em; margin:.65em 0 0; color:var(--dai); line-height:1.6; }
.paraphrase-label{ display:block; color:var(--ink-zhong); font-size:.86rem; }
.paraphrase-input{ display:block; width:100%; box-sizing:border-box; margin:.45em 0 .65em; padding:.7em; border:1px solid var(--ink-qing); border-radius:10px; background:var(--paper); color:var(--ink-nong); font:inherit; line-height:1.55; resize:vertical; }
.seg-issue-tools{ display:flex; flex-wrap:wrap; gap:7px; }
.seg-issue-tools button{ min-height:44px; padding:.45em .75em; border:1px solid var(--ink-qing); border-radius:999px; background:var(--paper); color:var(--ink-zhong); cursor:pointer; font-size:.8rem; }
.seg-issue-tools button[aria-pressed="true"]{ background:var(--dai); border-color:var(--dai); color:#fff; }
.semantic-note{ margin:.1em 0 .55em; color:var(--ink-zhong); line-height:1.65; }
.student-paraphrase{ margin:.35em 0 .65em; padding:.6em .75em; border-left:3px solid var(--qing-shi); background:var(--paper-warm); color:var(--ink-nong); line-height:1.65; }
.semantic-checklist{ display:flex; flex-wrap:wrap; gap:6px; list-style:none; margin:.2em 0 .7em; padding:0; }
.semantic-checklist li{ padding:.25em .65em; border-radius:999px; background:var(--paper-aged); color:var(--ink-zhong); font-size:.8rem; }
.translation-reference summary{ cursor:pointer; color:var(--dai); font-weight:700; }
.translation-reference p{ line-height:1.75; }

@media (max-width: 480px) {
  .seg-tabs { gap: 0; }
  .seg-tab-btn { padding: 9px 4px; font-size: .76rem; }
  .seg-understanding-choices,
  .seg-choice-grid,
  .seg-piece-buttons { flex-direction: column; }
  .seg-understanding-choices button,
  .seg-micro-judgment button,
  .seg-paraphrase-choices button { flex-basis: auto; width: 100%; }
  .seg-micro-judgment,
  .seg-paraphrase-choices { padding: 10px; }
}
.fc-semantic-note{ margin:.15em 0 .35em; color:var(--ink-dan); font-size:.78rem; }
.flashcard-back .semantic-checklist{ justify-content:center; margin-bottom:.45em; }
.context-hint-btn{ min-height:44px; padding:.5em .9em; border:1px solid var(--dai); border-radius:999px; background:var(--paper); color:var(--dai); cursor:pointer; font-weight:700; }
.context-hint-btn:disabled{ opacity:.7; cursor:default; }
.context-hint-output{ min-height:1.4em; margin:.45em 0 .65em; color:var(--dai); font-size:.86rem; line-height:1.6; }
.answer-diagnosis{ margin:.55em 0; padding:.6em .75em; border-left:3px solid var(--dai); background:var(--paper-warm); color:var(--ink-zhong); line-height:1.6; }
.diagnosis-misconception{ border-left-color:var(--zhu); }
.diagnosis-verify,.diagnosis-transfer{ border-left-color:var(--qing-shi); }
.cloze-purpose{ margin:.55em 0; color:var(--ink-dan); font-size:.82rem; }
.strategy-focus{ margin:.2em 0; padding-left:1.2em; list-style:'✦　'; }
.strategy-focus li{ margin:.35em 0; line-height:1.65; color:var(--ink-nong); font-family:var(--font-read); }
.strategy-summary:focus-visible{ outline:2px solid var(--dai); outline-offset:-2px; }

/* ① 短回合結算卡 */
@keyframes settle-in{ from{ transform:translateY(14px) scale(.96); opacity:0 } to{ transform:none; opacity:1 } }
.settle-card{ text-align:center; padding:22px 18px; animation:settle-in .35s ease-out; }
.settle-card h3{ margin:.1em 0 .5em; font-family:var(--font-brush); }
.settle-stats{ display:flex; justify-content:center; gap:22px; margin:.3em 0; }
.settle-stat{ display:flex; flex-direction:column; }
.settle-stat b{ font-size:1.6rem; color:var(--zhu); font-family:var(--font-brush); line-height:1.1; }
.settle-stat small{ font-size:.74rem; color:var(--ink-dan); }
.settle-mastery{ color:var(--ink-zhong); font-size:.9rem; margin:.5em 0; }
.settle-perfect{ background:linear-gradient(180deg,#fff8e8,var(--paper)); box-shadow:0 0 0 2px var(--zhu-light) inset, var(--shadow-lift); }
.settle-perfect-badge{ display:inline-block; margin:.2em 0 .5em; padding:.2em .9em; border-radius:999px; background:var(--zhu); color:#fff; font-size:.85rem; }
.settle-btns{ display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin-top:14px; }
.settle-btns button{ flex:1 1 40%; }

/* ⑨ 答錯自我歸因 */
.self-explain{ margin-top:10px; padding:12px; border:1px dashed var(--ink-qing); border-radius:12px; background:var(--paper-warm); }
.self-explain .se-q{ font-size:.9rem; color:var(--ink-zhong); margin:0 0 8px; }
.se-opts{ display:flex; flex-wrap:wrap; gap:6px; }
.se-btn{ padding:.5em .9em; min-height:44px; border:1px solid var(--ink-qing); border-radius:10px; background:var(--paper); color:var(--ink-nong); cursor:pointer; font-size:.86rem; transition:transform .08s,background .15s; }
.se-btn:hover{ background:var(--paper-aged); transform:translateY(-1px); }
.confidence-picker{ display:flex; flex-wrap:wrap; align-items:center; gap:6px; margin:10px 0; color:var(--ink-dan); font-size:.8rem; }
.confidence-picker button{ min-height:44px; padding:.45em .8em; border:1px solid var(--ink-qing); border-radius:999px; background:var(--paper); color:var(--ink-zhong); cursor:pointer; }
.confidence-picker button[aria-pressed="true"]{ background:var(--dai); border-color:var(--dai); color:#fff; font-weight:700; }
.home-next{ border-left:4px solid var(--dai); }
.home-next .hs-text small:first-child{ color:var(--zhu); font-weight:700; }
.home-rest{ cursor:default; background:linear-gradient(90deg,rgba(64,104,91,.08),var(--paper)); }

/* ⑧ 能力標籤專練 */
.quiz-tag-row{ display:flex; flex-wrap:wrap; align-items:center; gap:6px; margin-top:8px; }
.quiz-tag-label{ font-size:.8rem; color:var(--ink-dan); }
.quiz-tag-btn{ padding:.3em .7em; min-height:44px; display:inline-flex; align-items:center; border:1px solid var(--ink-qing); border-radius:999px; background:var(--paper); color:var(--ink-dan); font-size:.8rem; cursor:pointer; }
.quiz-tag-btn.active{ background:var(--dai); color:#fff; border-color:var(--dai); }

/* ⑤ 連對慶祝分級（combo-banner 基底已存在，這裡加分級樣式） */
.combo-banner.combo-t0{ color:var(--qing-shi); font-size:1.5rem; }
.combo-banner.combo-t1{ color:var(--dai); font-size:1.9rem; }
.combo-banner.combo-t2{ color:var(--zhu); font-size:2.4rem; }
.combo-banner.combo-t3{ color:var(--zhu-light); font-size:3rem; text-shadow:0 2px 10px rgba(158,59,44,.35); }

/* 答對放大微反應 */
@keyframes pop-in{ 0%{ transform:scale(.94); } 50%{ transform:scale(1.05); } 100%{ transform:scale(1); } }
.options button.pop{ animation:pop-in .22s ease-out; }
.quiz-question-card{ position:relative; animation:settle-in .16s ease-out; }
.yanling-companion{ position:absolute; right:10px; top:8px; display:flex; flex-direction:column; align-items:center; font-size:1.25rem; }
.yanling-companion .yanling-art{ width:48px; height:48px; object-fit:contain; filter:drop-shadow(0 1px 2px rgba(0,0,0,.18)); }
.yanling-companion small{ font-size:.7rem; color:var(--ink-dan); }
.yanling-companion.cheer{ animation:pop-in .45s ease-out; }
@keyframes yanling-gold{ 0%,100%{ filter:drop-shadow(0 0 4px rgba(181,132,40,.55)); } 50%{ filter:drop-shadow(0 0 12px rgba(181,132,40,.95)); } }
.yanling-companion.yanling-golden .yanling-art{ animation:yanling-gold 2.4s ease-in-out infinite; }
.yanling-companion.yanling-golden small{ color:#725012; font-weight:700; background:rgba(247,242,231,.9); padding:1px 5px; border-radius:999px; }
.combo-chip{ position:absolute; right:12px; top:52px; z-index:4; padding:3px 9px; border-radius:999px; background:var(--paper-aged); color:var(--zhu); font-size:.78rem; animation:pop-in .4s ease-out; }
.class-join-card .hs-text{ flex:1 1 auto; min-width:0; }
.class-join-card input{ flex:0 1 130px; min-width:90px; max-width:130px; padding:8px; box-sizing:border-box; }
.settle-mood,.settle-companion{ color:var(--ink-dan); font-size:.86rem; }
.mastery-reveal .drop-inner{ max-width:min(88vw,520px); pointer-events:none; }
.opponent-card small{ display:block; font-size:.72rem; margin-top:3px; }
.battle-source{ margin:10px 0; font-size:.86rem; }
/* 對戰低血量脈動 */
@keyframes hp-pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.5; } }
.hp-fill.low{ background:var(--zhu); animation:hp-pulse .9s ease-in-out infinite; }

/* ④ 掉寶開盒揭曉 */
@keyframes drop-rise{ 0%{ transform:translate(-50%,-30%) scale(.7); opacity:0; } 25%{ transform:translate(-50%,-50%) scale(1.1); opacity:1; } 80%{ opacity:1; } 100%{ transform:translate(-50%,-58%) scale(1); opacity:0; } }
.drop-reveal{ position:fixed; left:50%; top:44%; z-index:60; pointer-events:none; text-align:center; animation:drop-rise 1.9s ease-out forwards; }
.drop-inner{ padding:14px 22px; border-radius:16px; background:rgba(247,242,231,.96); box-shadow:var(--shadow-lift); border:1px solid var(--ink-qing); }
.drop-spark{ font-size:1.6rem; }
.drop-got{ margin:.2em 0 .1em; font-size:.82rem; color:var(--ink-dan); }
.drop-name{ margin:0; font-weight:800; font-family:var(--font-brush); font-size:1.3rem; }
.drop-tier-1 .drop-inner{ box-shadow:0 0 0 2px var(--qing-shi-light) inset, var(--shadow-lift); }
.drop-tier-2 .drop-inner{ box-shadow:0 0 0 2px var(--zhu) inset, var(--shadow-lift); }

/* 對戰結束畫面 */
.battle-end{ text-align:center; padding:22px 18px; }
.battle-end h3{ font-family:var(--font-brush); margin:.1em 0 .3em; }
.battle-end.win h3{ color:var(--zhu); }
.battle-drop{ color:var(--zhu); font-weight:600; }
.battle-end-btns{ display:flex; flex-wrap:wrap; gap:8px; justify-content:center; margin-top:14px; }
.battle-end-btns button{ flex:1 1 40%; }

/* ⑨ 閃卡自譯／朗讀／SRS 自評 */
.fc-tts{ margin-top:10px; padding:.35em .8em; border:1px solid var(--ink-qing); border-radius:10px; background:var(--paper); cursor:pointer; font-size:.85rem; }
.fc-translation{ font-family:var(--font-read); }
.fc-srs{ margin-top:12px; text-align:center; display:none; }
.fc-srs.show{ display:block; }
.fc-srs-q{ font-size:.88rem; color:var(--ink-dan); margin:0 0 6px; }
.fc-srs-btns{ display:flex; gap:8px; justify-content:center; }
.fc-srs-btns .se-btn{ flex:1 1 30%; }

/* 老師戰情室：逐題冷熱 */
.rt-hotspots{ margin-top:12px; }
.rt-hot-title{ font-size:.85rem; color:var(--ink-zhong); margin:0 0 6px; }
.rt-hot-title small{ color:var(--ink-dan); font-size:.76rem; }
.rt-hot-grid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(50px,1fr)); gap:6px; }
.rt-hot-cell{ text-align:center; padding:6px 2px; border-radius:8px; font-size:.7rem; background:var(--paper-aged); color:var(--ink-zhong); }
.rt-hot-cell b{ display:block; font-size:.78rem; }
.rt-hot-cell.cold{ background:var(--zhu); color:#fff; }
.rt-hot-cell.hot-good{ background:var(--dai); color:#fff; }

/* 解憂簿（文豪錄）強化 */
.wenhao-header h3,.wenhao-finale h3{ margin:.1em 0 .3em; font-family:var(--font-brush); }
.wenhao-progress{ height:10px; border-radius:999px; background:var(--paper-aged); overflow:hidden; margin-top:6px; }
.wenhao-progress-fill{ height:100%; background:linear-gradient(90deg,var(--yan),var(--zhu)); }
.wenhao-finale{ background:linear-gradient(180deg,#fff8e8,var(--paper)); box-shadow:0 0 0 2px var(--zhu-light) inset, var(--shadow-paper); }
.wenhao-finale p{ line-height:1.7; }
.wenhao-reunion{ margin-top:8px; padding:8px 10px; border-top:1px dashed var(--ink-qing); font-size:.82rem; color:var(--yan); font-family:var(--font-read); line-height:1.5; }

/* 第二批：週卷、難度排序、頁尾統計 */
.weekly-card{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:12px; text-align:left; color:var(--ink-nong); cursor:pointer; font:inherit; border-left:4px solid var(--yan); }
.weekly-card span{ display:flex; flex-direction:column; gap:3px; }
.weekly-card small,.weekly-note{ color:var(--ink-dan); font-size:.78rem; }
.weekly-card > strong{ color:var(--zhu); white-space:nowrap; }
.list-tools{ display:flex; justify-content:flex-end; align-items:center; gap:8px; margin:8px 2px; color:var(--ink-dan); font-size:.82rem; }
.list-tools select{ min-height:44px; padding:6px 28px 6px 10px; color:var(--ink-nong); background:var(--paper); border:1px solid var(--ink-dan); border-radius:8px; font:inherit; }
.exam-archive-entry{ width:100%; display:grid; grid-template-columns:1fr auto; align-items:center; gap:5px 14px; text-align:left; color:var(--ink-nong); cursor:pointer; border-left:4px solid var(--zhu); }
.exam-archive-entry span{ display:flex; flex-direction:column; gap:4px; }
.exam-archive-entry strong{ color:var(--zhu); font-size:1.2rem; }
.exam-archive-entry > small{ grid-column:1/-1; color:var(--ink-dan); }
.exam-archive-entry small{ font-size:.78rem; }
.exam-archive-header h2,.exam-detail-header h2{ margin:.2em 0; font-family:var(--font-brush); color:var(--zhu); }
.exam-kicker{ margin:8px 0 0; color:var(--yan); font-size:.78rem; font-weight:700; letter-spacing:.12em; }
.exam-tools{ display:grid; grid-template-columns:minmax(120px,.35fr) minmax(180px,1fr); gap:10px; margin-top:14px; }
.exam-tools label{ display:flex; flex-direction:column; gap:5px; color:var(--ink-dan); font-size:.78rem; }
.exam-tools select,.exam-tools input{ box-sizing:border-box; width:100%; min-height:44px; border:1px solid var(--ink-dan); border-radius:8px; padding:8px 10px; background:#fffdf8; color:var(--ink-nong); font:inherit; }
.exam-result-count{ margin:10px 0 0; color:var(--ink-dan); font-size:.8rem; }
.exam-archive-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:10px; }
.exam-archive-card{ display:flex; flex-direction:column; align-items:flex-start; gap:8px; width:100%; text-align:left; color:var(--ink-nong); cursor:pointer; }
.exam-archive-card strong{ font-family:var(--font-read); font-size:1rem; line-height:1.5; }
.exam-archive-card small{ color:var(--ink-dan); }
.exam-badges{ display:flex; flex-wrap:wrap; gap:5px; }
.exam-badges span{ display:inline-flex; align-items:center; min-height:25px; border-radius:999px; padding:2px 9px; background:rgba(158,59,44,.1); color:var(--zhu); font-size:.72rem; font-weight:700; }
.exam-empty{ grid-column:1/-1; text-align:center; color:var(--ink-dan); }
.exam-detail-header > p{ color:var(--ink-dan); line-height:1.6; }
.exam-study h3{ margin-top:0; color:var(--yan); font-family:var(--font-brush); }
.exam-passage{ font-family:var(--font-read); font-size:1rem; line-height:1.95; }
.exam-passage p{ margin:.7em 0; }
.exam-passage img,.exam-question img{ display:block; max-width:100%; height:auto; margin:14px auto; border-radius:8px; }
.exam-note{ border-top:1px dashed var(--line); padding-top:10px; color:var(--ink-dan); font-size:.84rem; }
.exam-study-tabs{ margin-top:14px; }
.exam-study-content{ min-height:118px; }
.exam-study-empty,.exam-study-reference{ padding:12px 14px; border-left:3px solid var(--zhu); border-radius:6px; background:var(--paper-aged); color:var(--ink-zhong); line-height:1.75; }
.exam-study-empty p,.exam-study-reference p{ margin:.45em 0 0; }
.exam-study-reference h4,.exam-study-analysis h4{ margin:0 0 6px; color:var(--zhu); }
.exam-study-label{ margin:0 0 10px !important; color:var(--yan); font-family:var(--font-ui); font-size:.75rem; font-weight:700; letter-spacing:.08em; }
.exam-glossary{ margin:0; }
.exam-glossary div{ display:grid; grid-template-columns:minmax(72px,.28fr) 1fr; gap:10px; padding:9px 0; border-top:1px dashed var(--line); }
.exam-glossary div:first-child{ border-top:0; }
.exam-glossary dt{ color:var(--zhu); font-weight:700; }
.exam-glossary dd{ margin:0; }
.exam-translation p:not(.exam-study-label){ padding-bottom:8px; border-bottom:1px dashed var(--line); font-family:var(--font-read); }
.exam-translation p:last-child{ padding-bottom:0; border-bottom:0; }
.exam-study-analysis{ color:var(--ink-zhong); font-family:var(--font-read); line-height:1.8; }
.exam-study-analysis section{ padding:12px 0; border-top:1px dashed var(--line); }
.exam-study-analysis section:first-of-type{ border-top:0; padding-top:4px; }
.exam-study-analysis p{ margin:.45em 0; }
.exam-questions{ display:grid; gap:10px; }
.exam-question-no{ margin:0; color:var(--zhu); font-weight:700; font-size:.82rem; }
.exam-question-passage{ margin:10px 0; padding:10px 12px; border-left:3px solid var(--yan); background:var(--paper-aged); font-family:var(--font-read); line-height:1.75; }
.exam-stem{ font-weight:700; line-height:1.7; }
.exam-options{ margin:.6em 0; padding-left:2.2em; }
.exam-options li{ margin:.45em 0; padding-left:.25em; line-height:1.55; }
.exam-answer{ margin-top:12px; border-top:1px dashed var(--line); padding-top:10px; }
.exam-answer summary{ min-height:44px; display:flex; align-items:center; color:var(--zhu); font-weight:700; cursor:pointer; }
.exam-answer p{ line-height:1.7; }
.exam-source-card{ display:flex; flex-wrap:wrap; gap:10px; }
.exam-source-card a{ color:var(--zhu); }
.site-footer{ max-width:720px; margin:4px auto 20px; padding:8px 16px; text-align:center; color:var(--ink-dan); font-size:.75rem; display:flex; align-items:center; justify-content:center; flex-wrap:wrap; gap:8px 14px; }
.site-footer>div{ display:flex; align-items:center; justify-content:center; }
.report-open{ border:0; border-bottom:1px solid currentColor; background:transparent; color:var(--ink-dan); padding:4px 2px; font:inherit; cursor:pointer; }
.report-open:hover,.report-open:focus-visible{ color:var(--zhu); }
.report-dialog{ width:min(520px,calc(100vw - 32px)); max-height:calc(100vh - 32px); border:1px solid var(--line); border-radius:14px; padding:22px; background:var(--paper); color:var(--ink-jiao); box-shadow:var(--shadow-lift); }
.report-dialog::backdrop{ background:rgba(26,22,19,.58); }
.announcement-dialog{ box-sizing:border-box; width:min(580px,calc(100vw - 28px)); max-height:calc(100vh - 28px); overflow:auto; border:1px solid var(--line); border-radius:16px; padding:24px; background:var(--paper); color:var(--ink-jiao); box-shadow:var(--shadow-lift); }
.announcement-dialog::backdrop{ background:rgba(26,22,19,.62); }
.announcement-heading{ display:flex; align-items:flex-start; justify-content:space-between; gap:16px; }
.announcement-heading h2{ margin:2px 0 12px; color:var(--zhu); font-family:var(--font-brush); font-size:1.8rem; }
.announcement-kicker{ margin:0; color:var(--ink-dan); font-size:.78rem; font-weight:700; letter-spacing:.08em; }
.announcement-body{ line-height:1.75; }
.announcement-body h3{ margin-bottom:4px; color:var(--yan); }
.announcement-body ol{ margin-top:4px; padding-left:1.5em; }
.mastery-rule-box{ display:grid; gap:5px; margin:14px 0; padding:14px 16px; border-left:4px solid var(--zhu); border-radius:8px; background:var(--paper-warm); }
.mastery-rule-box strong{ color:var(--zhu); font-size:1.08rem; }
.announcement-confirm{ display:block; min-width:140px; margin:18px auto 0; }
.mastery-entry{ border-color:rgba(158,59,44,.38); background:linear-gradient(135deg,var(--paper),var(--paper-warm)); }
.mastery-entry h3{ margin:0 0 6px; color:var(--zhu); }
.mastery-rule-inline{ margin:.35em 0 .8em; color:var(--ink-dan); font-size:.86rem; line-height:1.65; }
.mastery-stamps{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; margin:12px 0; }
.mastery-stamp{ padding:9px 5px; border:1px solid var(--line); border-radius:8px; background:#fffdf8; text-align:center; font-size:.8rem; }
.mastery-stamp.pass{ border-color:#7ea287; background:#edf6ef; color:#376944; font-weight:700; }
.mastery-stamp.fail{ border-color:#c59b90; background:#fff3ef; color:var(--zhu); font-weight:700; }
@media (max-width:480px){ .mastery-stamps{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
.report-heading{ display:flex; align-items:flex-start; justify-content:space-between; gap:16px; margin-bottom:16px; }
.report-heading h2{ margin:0 0 4px; color:var(--zhu); font-family:var(--font-brush); font-size:1.65rem; }
.report-heading p{ margin:0; color:var(--ink-dan); font-size:.88rem; line-height:1.6; }
.report-close{ flex:0 0 44px; width:44px; height:44px; border:0; border-radius:50%; background:transparent; color:var(--ink-dan); font-size:1.8rem; line-height:1; cursor:pointer; }
.report-close:hover,.report-close:focus-visible{ background:var(--paper-warm); color:var(--zhu); }
.report-dialog label{ display:block; margin:12px 0 6px; color:var(--ink-zhong); font-weight:700; font-size:.9rem; }
.report-dialog label span{ color:var(--ink-dan); font-weight:400; }
.report-dialog select,.report-dialog textarea,.report-dialog input{ box-sizing:border-box; width:100%; border:1px solid var(--line); border-radius:8px; padding:10px 12px; background:#fffdf8; color:var(--ink-jiao); font:inherit; }
.report-dialog textarea{ resize:vertical; min-height:132px; line-height:1.6; }
.report-dialog select:focus,.report-dialog textarea:focus,.report-dialog input:focus{ outline:2px solid var(--zhu); outline-offset:1px; border-color:var(--zhu); }
.report-hp{ position:absolute; left:-10000px; width:1px; height:1px; overflow:hidden; }
.report-status{ min-height:1.5em; margin:12px 0 0; font-size:.88rem; }
.report-status[data-state="success"]{ color:#376944; }
.report-status[data-state="error"]{ color:var(--zhu); }
.report-actions{ display:flex; justify-content:flex-end; margin-top:10px; }
.report-actions .primary{ min-height:44px; min-width:112px; }
.context-report{ display:block; min-height:44px; margin:10px 0 0 auto; border:0; border-bottom:1px solid currentColor; background:transparent; color:var(--ink-dan); padding:8px 4px; font:inherit; font-size:.84rem; cursor:pointer; }
.context-report:hover,.context-report:focus-visible{ color:var(--zhu); }
.report-context-label{ margin:0 0 12px; padding:9px 12px; border-radius:8px; background:var(--paper-warm); color:var(--ink-zhong); font-size:.88rem; }
.report-reasons{ margin:0; padding:0; border:0; }
.report-reasons legend{ margin:0 0 7px; color:var(--ink-zhong); font-weight:700; font-size:.9rem; }
.report-reasons button{ min-height:44px; margin:0 5px 7px 0; border:1px solid var(--line); border-radius:999px; padding:8px 13px; background:#fffdf8; color:var(--ink-zhong); font:inherit; cursor:pointer; }
.report-reasons button[aria-pressed="true"]{ border-color:var(--zhu); background:rgba(158,59,44,.1); color:var(--zhu); font-weight:700; }
.visitor-badge{ min-width:80px; min-height:20px; vertical-align:middle; }
.ct-decor.is-keyboard-moving{ outline:3px solid var(--zhu); outline-offset:3px; }

/* 手機只把五個核心分頁移到底部；江湖次導覽仍留在原本內容上方。 */
@media (max-width: 480px) {
  body{ padding-bottom:72px; }
  .class-join-card{ display:grid; flex:1 1 100%; grid-template-columns:auto minmax(0,1fr) auto; }
  .class-join-card .hs-icon{ grid-column:1; grid-row:1; }
  .class-join-card .hs-text{ grid-column:2 / -1; grid-row:1; }
  .class-join-card input{ grid-column:1 / 3; grid-row:2; width:100%; min-width:0; max-width:none; }
  .class-join-card #homeClassJoin{ grid-column:3; grid-row:2; }
  nav.tabs:not(.tabs-sub){ position:fixed; left:0; right:0; bottom:0; z-index:80; padding:4px 2px max(4px,env(safe-area-inset-bottom)); border-top:1px solid var(--line); border-bottom:0; box-shadow:0 -4px 16px rgba(26,22,19,.12); }
  nav.tabs:not(.tabs-sub) button{ min-width:0; min-height:52px; padding:7px 2px 8px; border-radius:8px; border-bottom-width:2px; font-size:.82rem; }
  .exam-tools{ grid-template-columns:1fr; }
  nav.tabs.tabs-sub{ position:relative; bottom:auto; }
  .weekly-card{ align-items:flex-start; }
  .weekly-card > strong{ white-space:normal; text-align:right; }
  .site-footer{ margin-bottom:8px; }
}