/* ==========================================================================
   墨韵文苑 · 全局样式
   古风浅色调 / 书香气息 / 毛笔标题字体 / 响应式适配
   ========================================================================== */

:root {
  /* 宣纸底与纸张 */
  --paper: #f6efe2;
  --paper-deep: #efe6d2;
  --card: #fdfaf3;
  --card-soft: #faf5ea;

  /* 墨色文字 */
  --ink: #342c1f;
  --ink-2: #55493a;
  --ink-3: #7a6c58;
  --ink-4: #9c8f78;

  /* 朱砂 / 印章红 */
  --cinnabar: #a83a2a;
  --cinnabar-deep: #8d2f22;
  --cinnabar-soft: rgba(168, 58, 42, 0.08);

  /* 竹青与金褐 */
  --bamboo: #5e7a5f;
  --bamboo-soft: rgba(94, 122, 95, 0.10);
  --gold: #c19a5b;
  --gold-soft: rgba(193, 154, 91, 0.16);

  /* 边框 */
  --line: #e2d6bd;
  --line-deep: #cdbc98;

  /* 字体 */
  --font-brush: "Ma Shan Zheng", "STXingkai", "华文行楷", "Xingkai SC", "KaiTi", "楷体", cursive;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", "宋体", serif;

  /* 间距与圆角 */
  --radius: 6px;
  --radius-lg: 10px;
  --shadow: 0 10px 30px rgba(90, 70, 40, 0.08), 0 2px 8px rgba(90, 70, 40, 0.05);
  --shadow-float: 0 18px 50px rgba(60, 45, 25, 0.18), 0 4px 14px rgba(60, 45, 25, 0.10);

  --max-w: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-serif);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 50% -80px, #fbf6ea 0%, rgba(251, 246, 234, 0) 60%),
    linear-gradient(180deg, var(--paper) 0%, #f2e9d8 100%);
  background-attachment: fixed;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 卷轴竖向暗纹，营造古籍氛围 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(120, 95, 60, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(120, 95, 60, 0.028) 1px, transparent 1px);
  background-size: 34px 34px;
  mix-blend-mode: multiply;
  z-index: 0;
}

.page {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ==========================================================================
   页头
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 245, 234, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 14px; }

/* 印章 */
.seal {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #b5452f, #8d2f22);
  color: #fdf6ec;
  font-family: var(--font-brush);
  font-size: 30px;
  line-height: 1;
  border-radius: 6px;
  box-shadow: inset 0 0 0 3px rgba(253, 246, 236, 0.35), 0 3px 8px rgba(141, 47, 34, 0.35);
  transform: rotate(-2deg);
}

.brand-title {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: 2px;
  color: var(--ink);
  line-height: 1.1;
}

.brand-sub {
  margin: 2px 0 0;
  font-size: 12.5px;
  letter-spacing: 4px;
  color: var(--ink-3);
}

/* 标签导航 */
.tabs {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.tab {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 8px 14px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--ink-2);
  background: transparent;
  border-radius: 6px;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.tab:hover { color: var(--ink); background: rgba(193, 154, 91, 0.12); }

.tab.is-active {
  background: var(--ink);
  color: #f6eedd;
  box-shadow: 0 3px 10px rgba(52, 44, 31, 0.28);
}

.tab-glyph {
  font-family: var(--font-brush);
  font-size: 16px;
  line-height: 1;
  transform: translateY(1px);
}

/* 页头右侧：标签 + AI 状态入口 */
.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.ai-status {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card-soft);
  border: 1px solid var(--line-deep);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink-2);
  letter-spacing: 0.5px;
  transition: all 0.18s ease;
  white-space: nowrap;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-status:hover { border-color: var(--gold); background: var(--gold-soft); color: var(--ink); }

.ai-dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
}

body.ai-connected .ai-dot {
  background: var(--bamboo);
  box-shadow: 0 0 0 3px var(--bamboo-soft);
}

/* ==========================================================================
   主区
   ========================================================================== */
.site-main {
  flex: 1;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px 24px 48px;
}

.tab-panel.is-hidden { display: none; }

/* 面板通用 */
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 26px 28px;
}

.panel + .panel { margin-top: 22px; }

.panel-heading { margin-bottom: 16px; }

.panel-title {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 23px;
  letter-spacing: 1.5px;
  color: var(--ink);
}

.panel-hint {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}

/* ==========================================================================
   输入控件
   ========================================================================== */
.text-input {
  width: 100%;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--ink);
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  line-height: 1.9;
  resize: vertical;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.text-input::placeholder { color: var(--ink-4); }

.text-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
  background: #fffdf7;
}

.text-input-sm { font-size: 15px; padding: 9px 12px; line-height: 1.6; }

.search-input { min-width: 180px; }

/* 按钮 */
.btn {
  appearance: none;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-serif);
  font-size: 15px;
  padding: 10px 20px;
  line-height: 1.4;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(160deg, #b5452f, #8d2f22);
  color: #fdf6ec;
  box-shadow: 0 4px 12px rgba(141, 47, 34, 0.28);
}
.btn-primary:hover { filter: brightness(1.06); }

.btn-ink {
  background: var(--ink);
  color: #f6eedd;
  box-shadow: 0 4px 12px rgba(52, 44, 31, 0.25);
}
.btn-ink:hover { filter: brightness(1.12); }

.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border-color: var(--line-deep);
}
.btn-ghost:hover { background: var(--gold-soft); border-color: var(--gold); color: var(--ink); }
.btn-ghost.is-active {
  background: var(--ink);
  color: #f6eedd;
  border-color: var(--ink);
}

.btn-mini { font-size: 13px; padding: 6px 13px; }

/* 背诵按钮：深墨色，与其余浅色按钮区分；选题态转为朱砂色 */
.btn-recite {
  background: var(--ink);
  color: #f6eedd;
  border-color: var(--ink);
  box-shadow: 0 3px 10px rgba(52, 44, 31, 0.22);
}
.btn-recite:hover { filter: brightness(1.15); }
.btn-recite.is-active {
  background: var(--cinnabar);
  border-color: var(--cinnabar-deep);
  box-shadow: 0 3px 10px rgba(168, 58, 42, 0.28);
}
.btn-recite.is-active:hover { filter: brightness(1.08); }

.btn-block { display: block; width: 100%; text-align: center; }

.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* ==========================================================================
   导入面板
   ========================================================================== */
.import-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.import-actions-left { display: flex; gap: 10px; flex-wrap: wrap; }

.import-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  color: var(--ink-4);
  border-left: 3px solid var(--gold);
  padding-left: 10px;
}

/* ==========================================================================
   阅读面板
   ========================================================================== */
.is-hidden { display: none !important; }

.article-head { margin-bottom: 6px; }

.article-title-row { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }

.article-title {
  margin: 0;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 34px;
  letter-spacing: 2px;
  color: var(--ink);
}

.article-author {
  font-size: 14px;
  color: var(--ink-3);
  letter-spacing: 1px;
}

.article-meta { margin: 6px 0 0; font-size: 13px; color: var(--ink-3); }

.article-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

/* 段落 */
.para {
  position: relative;
  padding: 18px 6px;
  border-bottom: 1px dashed var(--line);
}
.para:last-of-type { border-bottom: 0; }

.para-head { display: flex; align-items: center; gap: 10px; }

.para-index {
  flex: 0 0 auto;
  font-family: var(--font-brush);
  font-size: 16px;
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
  border: 1px solid rgba(168, 58, 42, 0.2);
  border-radius: 4px;
  padding: 0 9px;
  line-height: 1.6;
}

.para-text {
  font-size: 20px;
  line-height: 2.15;
  letter-spacing: 1.5px;
  color: var(--ink);
  margin: 0;
}

.para-text .char { cursor: pointer; padding: 1px 1px; border-radius: 3px; transition: background 0.12s ease; }
.para-text .char:hover { background: var(--gold-soft); }
.para-text .char.active { background: var(--gold-soft); outline: 1px solid var(--gold); }

.para-actions { margin-top: 8px; display: flex; align-items: center; gap: 10px; }

.btn-translate {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--cinnabar);
  background: transparent;
  border: 1px solid rgba(168, 58, 42, 0.35);
  border-radius: 4px;
  padding: 3px 11px;
  transition: all 0.15s ease;
}
.btn-translate:hover { background: var(--cinnabar-soft); }

.para-translation {
  margin: 10px 0 0 0;
  padding: 10px 14px;
  background: var(--card-soft);
  border-left: 3px solid var(--bamboo);
  border-radius: 0 6px 6px 0;
  font-size: 15.5px;
  color: var(--ink-2);
  line-height: 1.85;
}

.para-translation .tl-label {
  font-size: 12px;
  color: var(--bamboo);
  margin-right: 6px;
  letter-spacing: 1px;
}

/* 古诗排版 */
#article-body.is-poetry {
  max-width: 780px;
  margin: 0 auto;
}
#article-body.is-poetry .para.is-poem-line {
  border-bottom: 0;
  padding: 6px 4px;
}
#article-body.is-poetry .para.is-poem-line.has-stanza-break {
  padding-bottom: 22px;
  margin-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}
#article-body.is-poetry .para.is-poem-line.has-stanza-break:last-child {
  border-bottom: 0;
  margin-bottom: 0;
}
#article-body.is-poetry .para-text {
  text-align: center;
  font-size: 22px;
  line-height: 2.45;
  letter-spacing: 3px;
  text-indent: 0;
  padding: 4px 0;
}
#article-body.is-poetry .para-actions {
  justify-content: center;
  margin-top: 2px;
  opacity: 0;
  transition: opacity 0.18s ease;
}
#article-body.is-poetry .para:hover .para-actions { opacity: 1; }

/* 挖空 */
.cloze-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 16px 0 6px;
  padding: 12px 16px;
  background: var(--gold-soft);
  border: 1px solid rgba(193, 154, 91, 0.45);
  border-radius: var(--radius);
  font-size: 13.5px;
  color: var(--ink-2);
  flex-wrap: wrap;
}
.cloze-banner p { margin: 0; }

.blank-mark {
  font-weight: 700;
  color: var(--cinnabar);
  border-bottom: 2px solid var(--cinnabar);
  padding: 0 1px;
}

.blank-input {
  display: inline-block;
  width: auto;
  min-width: 2em;
  border: none;
  border-bottom: 2px dashed var(--cinnabar);
  background: var(--cinnabar-soft);
  padding: 1px 4px;
  font-size: 15px;
  font-family: var(--font-brush);
  color: var(--ink);
  text-align: center;
  border-radius: 3px;
  outline: none;
  vertical-align: middle;
  margin-left: 2px;
  transition: width 0.15s ease;
}
.blank-input:focus {
  border-bottom-color: var(--cinnabar-deep);
  background: #fff;
  box-shadow: 0 1px 0 var(--cinnabar-deep);
}

/* 隐藏测量 span：与 blank-input 字体一致，用于精确计算文本宽度 */
.blank-measure {
  position: absolute;
  visibility: hidden;
  white-space: pre;
  font-size: 15px;
  font-family: var(--font-brush);
  pointer-events: none;
}

.cloze-banner-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.cloze-check-results {
  margin-top: 22px;
  padding: 20px 22px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.check-summary {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 14px;
}

.check-correct .ans-word { color: #2e7d32; }
.check-wrong .ans-word { color: var(--cinnabar-deep); }
.check-correct { border-left-color: #2e7d32 !important; }
.check-wrong { border-left-color: var(--cinnabar-deep) !important; }

/* 全文赏析 */
.appreciation-box {
  margin-top: 22px;
  padding: 20px 22px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--radius);
}

.appreciation-title {
  margin: 0 0 12px;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 1.5px;
  color: var(--ink);
}

.appreciation-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
  text-align: justify;
  white-space: pre-wrap;
}

.cloze-answers {
  margin-top: 22px;
  padding: 20px 22px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.cloze-answers-title {
  margin: 0 0 12px;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 1.5px;
  color: var(--ink);
}

.cloze-answers-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px 22px;
}

.cloze-answers-list li {
  font-size: 15px;
  color: var(--ink-2);
  padding-left: 6px;
  border-left: 2px solid var(--bamboo);
}

.cloze-answers-list .ans-word {
  font-weight: 700;
  color: var(--cinnabar);
  margin-right: 8px;
}

/* ==========================================================================
   单字查询弹层
   ========================================================================== */
.char-popover-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(40, 30, 15, 0.18);
  z-index: 90;
}

.char-popover {
  position: fixed;
  z-index: 100;
  width: 300px;
  max-width: calc(100vw - 24px);
  background: var(--card);
  border: 1px solid var(--line-deep);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  padding: 18px 20px 16px;
}

.char-popover-close {
  position: absolute;
  top: 8px;
  right: 10px;
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  color: var(--ink-4);
  padding: 2px 6px;
}
.char-popover-close:hover { color: var(--cinnabar); }

.char-popover-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}

.char-glyph {
  font-family: var(--font-brush);
  font-size: 44px;
  line-height: 1;
  color: var(--ink);
}

.char-pinyin { font-size: 15px; color: var(--ink-3); letter-spacing: 1px; }

.char-pos {
  display: inline-block;
  margin-left: 8px;
  font-size: 12px;
  color: var(--cinnabar-deep);
  background: var(--cinnabar-soft);
  border-radius: 3px;
  padding: 1px 7px;
  letter-spacing: 0.5px;
  vertical-align: middle;
}

.char-section { margin-bottom: 12px; }
.char-section:last-child { margin-bottom: 14px; }

.char-section-title {
  margin: 0 0 5px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--bamboo);
  letter-spacing: 2px;
}

.char-here {
  margin: 0;
  font-size: 16px;
  color: var(--cinnabar-deep);
  font-weight: 600;
}

.char-analysis {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--paper-deep);
  border-left: 3px solid var(--bamboo);
  padding: 6px 9px;
  border-radius: 0 4px 4px 0;
}

.char-meanings { margin: 0; padding-left: 18px; }

.char-meanings li {
  font-size: 14.5px;
  color: var(--ink-2);
  padding: 2px 0;
}

/* 弹层在移动端变为底部抽屉 */
@media (max-width: 640px) {
  .char-popover {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 12px;
    top: auto;
    width: auto;
    max-height: 60vh;
    overflow-y: auto;
  }
}

/* 查询中加载态 */
.char-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 4px 14px;
  min-height: 110px;
  color: var(--ink-3);
  font-size: 14px;
}

.char-loading-text { letter-spacing: 2px; }

.spinner {
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--line-deep);
  border-top-color: var(--cinnabar);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   背诵面板
   ========================================================================== */
.recite-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 22px;
  align-items: start;
}

.add-panel { position: sticky; top: 96px; }

.field { display: block; margin-bottom: 14px; }

.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
.field-pinyin { max-width: 160px; }

.field-label {
  display: block;
  font-size: 13.5px;
  color: var(--ink-2);
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.meaning-inputs { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }

.meaning-row { display: flex; align-items: center; gap: 8px; }

.meaning-row .text-input { flex: 1; }

.meaning-index {
  flex: 0 0 auto;
  font-family: var(--font-brush);
  color: var(--cinnabar);
  font-size: 16px;
  width: 22px;
  text-align: center;
}

.btn-remove-meaning {
  flex: 0 0 auto;
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink-4);
  font-size: 18px;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 4px;
}
.btn-remove-meaning:hover { color: var(--cinnabar); background: var(--cinnabar-soft); }

.btn-add-meaning { margin-bottom: 16px; font-size: 13.5px; padding: 7px 14px; }

.form-feedback {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--bamboo);
  min-height: 20px;
}
.form-feedback.is-error { color: var(--cinnabar); }

/* 列表 */
.list-panel { min-height: 360px; }

.list-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.list-tools { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.vocab-list { display: flex; flex-direction: column; gap: 14px; }

.vocab-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-soft);
  padding: 16px 18px;
  position: relative;
}

.vocab-card-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }

.vocab-word {
  font-family: var(--font-brush);
  font-size: 30px;
  line-height: 1;
  color: var(--ink);
}

.vocab-pinyin { font-size: 14px; color: var(--ink-3); letter-spacing: 1px; }

.vocab-delete {
  position: absolute;
  top: 12px;
  right: 14px;
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  color: var(--ink-4);
  padding: 2px 6px;
  border-radius: 4px;
}
.vocab-delete:hover { color: var(--cinnabar); background: var(--cinnabar-soft); }
.vocab-delete.is-confirm {
  color: #fff;
  background: var(--cinnabar);
  border-radius: 4px;
}
.vocab-delete.is-confirm:hover { color: #fff; background: var(--cinnabar-deep); }

.meaning-item { padding: 6px 0; border-top: 1px dashed rgba(205, 188, 152, 0.5); }
.meaning-item:first-of-type { border-top: 0; }

.meaning-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.meaning-no {
  font-family: var(--font-brush);
  color: var(--cinnabar);
  font-size: 15px;
  width: 20px;
  flex: 0 0 auto;
}

.meaning-text { font-size: 16px; color: var(--ink); font-weight: 500; }

.btn-example {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-serif);
  font-size: 12.5px;
  color: var(--bamboo);
  background: transparent;
  border: 1px solid rgba(94, 122, 95, 0.4);
  border-radius: 4px;
  padding: 2px 10px;
  transition: all 0.15s ease;
}
.btn-example:hover { background: var(--bamboo-soft); }
.btn-example.is-loading { opacity: 0.6; cursor: progress; }
.btn-example:disabled { opacity: 0.6; cursor: progress; }

.example-box {
  margin-top: 8px;
  padding: 9px 13px;
  background: #fffdf7;
  border-left: 3px solid var(--bamboo);
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  color: var(--ink-2);
}

.example-sentence { margin: 0; line-height: 1.8; }

.example-source {
  margin: 4px 0 0;
  font-size: 12.5px;
  color: var(--ink-4);
  text-align: right;
}

/* 空状态 */
.empty-state { text-align: center; padding: 48px 20px; color: var(--ink-3); }
.empty-glyph {
  font-family: var(--font-brush);
  font-size: 46px;
  color: var(--line-deep);
  margin-bottom: 8px;
}

/* ==========================================================================
   已存文章
   ========================================================================== */
.saved-articles {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.saved-title {
  margin: 0 0 10px;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 1.5px;
  color: var(--ink);
}

.saved-articles-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.saved-articles-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 9px 12px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.sa-title {
  font-size: 15.5px;
  color: var(--ink);
  font-weight: 500;
}

.sa-meta { font-size: 12.5px; color: var(--ink-4); margin-right: auto; }

.sa-actions { display: flex; gap: 6px; }

/* ==========================================================================
   背诵选题与背诵会话
   ========================================================================== */
.recite-select-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 14px;
  padding: 10px 14px;
  background: var(--gold-soft);
  border: 1px solid rgba(193, 154, 91, 0.45);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-2);
}

.recite-select-actions { display: flex; gap: 8px; }

.vocab-card.is-selectable { cursor: pointer; }
.vocab-card.is-selectable:hover { border-color: var(--gold); }
.vocab-card.is-selected {
  border-color: var(--cinnabar);
  background: var(--cinnabar-soft);
}

.vocab-check {
  position: absolute;
  top: 14px;
  left: 16px;
  width: 18px;
  height: 18px;
  accent-color: var(--cinnabar);
  cursor: pointer;
}

.vocab-card.is-selectable .vocab-card-head { padding-left: 26px; }

.recite-modal { max-width: 640px; }

.rs-progress {
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.rs-word-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }

.rs-word {
  font-family: var(--font-brush);
  font-size: 40px;
  line-height: 1;
  color: var(--cinnabar);
}

.rs-hint { font-size: 13.5px; color: var(--ink-3); }

.rs-example {
  margin: 0 0 16px;
  padding: 14px 16px;
  background: var(--card-soft);
  border-left: 3px solid var(--bamboo);
  border-radius: 0 6px 6px 0;
  font-size: 18px;
  line-height: 1.9;
  color: var(--ink);
  letter-spacing: 1px;
}

.rs-feedback {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffdf7;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.8;
}

.rs-verdict {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 4px;
}
.rs-verdict.is-right { color: var(--bamboo); }
.rs-verdict.is-wrong { color: var(--cinnabar); }

.rs-feedback p { margin: 2px 0; }

.rs-answer { color: var(--ink); }
.rs-answer strong { color: var(--cinnabar-deep); }

.rs-source { color: var(--ink-4); font-size: 13px; }

#rs-next { margin-top: 14px; }

.rs-summary { text-align: center; padding: 8px 0 4px; }

.rs-summary-title {
  margin: 0 0 14px;
  font-family: var(--font-brush);
  font-weight: 400;
  font-size: 24px;
  letter-spacing: 1.5px;
  color: var(--ink);
}

.rs-summary-list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 40vh;
  overflow-y: auto;
}

.rs-summary-list li {
  padding: 9px 13px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14.5px;
  color: var(--ink-2);
}

.rs-summary-list .rs-badge {
  display: inline-block;
  margin-right: 8px;
  font-size: 12.5px;
  padding: 0 8px;
  border-radius: 999px;
}
.rs-badge.is-right { background: var(--bamboo-soft); color: var(--bamboo); border: 1px solid rgba(94, 122, 95, 0.4); }
.rs-badge.is-wrong { background: var(--cinnabar-soft); color: var(--cinnabar); border: 1px solid rgba(168, 58, 42, 0.4); }

/* ==========================================================================
   设置弹窗（AI 接口配置）
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(45, 34, 18, 0.42);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
}

.modal {
  width: 100%;
  max-width: 560px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--line-deep);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-float);
  padding: 26px 28px;
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.modal-close {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
  color: var(--ink-4);
  padding: 2px 8px;
  border-radius: 4px;
}
.modal-close:hover { color: var(--cinnabar); background: var(--cinnabar-soft); }

.settings-form select.text-input {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-3) 50%),
    linear-gradient(135deg, var(--ink-3) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 12px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  cursor: pointer;
}

.key-row { display: flex; gap: 8px; align-items: center; }
.key-row .text-input { flex: 1; }

.field-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--ink-2);
  cursor: pointer;
}
.field-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--cinnabar);
  cursor: pointer;
  flex: 0 0 auto;
}

.settings-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.settings-note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  color: var(--ink-4);
  line-height: 1.9;
}
.settings-note strong { color: var(--ink-3); }

/* ==========================================================================
   Toast 提示
   ========================================================================== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink);
  color: #f6eedd;
  font-size: 14px;
  padding: 11px 22px;
  border-radius: 6px;
  box-shadow: var(--shadow-float);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 200;
  max-width: calc(100vw - 40px);
}
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  text-align: center;
  padding: 20px 16px 32px;
  color: var(--ink-4);
  font-size: 13px;
  letter-spacing: 3px;
  border-top: 1px solid var(--line);
}

/* ==========================================================================
   诗词背诵面板
   ========================================================================== */
.recitation-config {
  display: flex;
  gap: 20px;
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  flex-wrap: wrap;
  align-items: flex-start;
}

.recitation-config-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.recitation-config-label {
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 1px;
}

.recitation-mode-options {
  display: flex;
  gap: 6px;
}

.recitation-mode-btn,
.recitation-diff-btn {
  padding: 6px 14px;
  font-size: 13px;
}

.recitation-mode-btn.is-active,
.recitation-diff-btn.is-active {
  background: var(--ink);
  color: #f6eedd;
  border-color: var(--ink);
}

.recitation-exercise-panel {
  margin-top: 16px;
}

.recitation-exercise-body {
  margin-top: 6px;
}

/* 填空背诵 - 行 */
.recite-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1px;
  padding: 12px 6px;
  border-bottom: 1px dashed var(--line);
  font-size: 19px;
  line-height: 2.0;
  letter-spacing: 1px;
  color: var(--ink);
}

.recite-line:last-child { border-bottom: 0; }

.recite-line .char {
  font-family: var(--font-serif);
}

.recite-line .blank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.8em;
  max-width: 2.0em;
  padding: 0 1px;
  margin: 0 1px;
  border-bottom: 2px dashed var(--cinnabar);
  background: var(--cinnabar-soft);
  border-radius: 3px;
  transition: all 0.15s ease;
}

.recite-line .blank-input {
  width: 100%;
  min-width: 1.2em;
  border: none;
  background: transparent;
  font-family: var(--font-brush);
  font-size: 19px;
  color: var(--ink);
  text-align: center;
  outline: none;
  padding: 1px 0;
  line-height: 1.4;
}

.recite-line .blank-input:focus {
  color: var(--cinnabar-deep);
}

.recite-line .blank.correct {
  border-bottom-color: #2e7d32;
  background: rgba(46, 125, 50, 0.08);
}

.recite-line .blank.wrong {
  border-bottom-color: var(--cinnabar-deep);
  background: var(--cinnabar-soft);
}

.recite-line .blank.revealed {
  border-bottom-color: var(--bamboo);
  background: transparent;
  color: var(--bamboo);
  font-weight: 600;
}

/* 翻译背诵 - 行 */
.recite-trans-line {
  padding: 14px 8px;
  border-bottom: 1px dashed var(--line);
}

.recite-trans-line:last-child { border-bottom: 0; }

.recite-trans-index {
  display: inline-block;
  font-family: var(--font-brush);
  font-size: 13px;
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
  border: 1px solid rgba(168, 58, 42, 0.2);
  border-radius: 4px;
  padding: 2px 10px;
  margin-bottom: 6px;
  line-height: 1.6;
}

.recite-trans-input {
  width: 100%;
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink);
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 12px;
  line-height: 1.8;
  letter-spacing: 0.5px;
  resize: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
  margin-bottom: 8px;
  box-sizing: border-box;
}

.recite-trans-input::placeholder {
  color: var(--ink-4);
  letter-spacing: 0.5px;
}

.recite-trans-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
  background: #fffdf7;
}

.recite-trans-input.correct {
  border-color: #2e7d32;
  background: rgba(46, 125, 50, 0.05);
}

.recite-trans-input.wrong {
  border-color: var(--cinnabar-deep);
  background: var(--cinnabar-soft);
}

.recite-trans-hint {
  padding: 8px 12px;
  background: var(--card-soft);
  border-left: 3px solid var(--bamboo);
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.75;
  margin: 0;
}

.recite-trans-hint .tl-label {
  font-size: 12px;
  color: var(--bamboo);
  margin-right: 6px;
  letter-spacing: 1px;
}

.recite-trans-answer {
  margin-top: 6px;
  padding: 8px 14px;
  font-size: 16px;
  color: var(--cinnabar-deep);
  font-weight: 500;
}

.recite-trans-answer .ans-label {
  font-size: 12px;
  color: var(--ink-3);
  margin-right: 6px;
}

/* 核查结果 */
.recitation-check-results {
  margin-top: 18px;
  padding: 16px 18px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.recitation-check-results .check-summary {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 12px;
}

.recitation-check-results .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.recitation-check-results .check-list li {
  padding: 6px 10px;
  font-size: 13.5px;
  color: var(--ink-2);
  border-left: 3px solid var(--line);
  border-radius: 0 4px 4px 0;
  background: #fffdf7;
}

.recitation-check-results .check-list li.correct {
  border-left-color: #2e7d32;
}

.recitation-check-results .check-list li.wrong {
  border-left-color: var(--cinnabar-deep);
}

.recitation-check-results .check-badge {
  display: inline-block;
  margin-right: 6px;
  font-size: 11px;
  padding: 0 6px;
  border-radius: 999px;
  font-weight: 600;
}

.recitation-check-results .check-badge.correct {
  background: rgba(46, 125, 50, 0.12);
  color: #2e7d32;
}

.recitation-check-results .check-badge.wrong {
  background: var(--cinnabar-soft);
  color: var(--cinnabar);
}

/* 翻译背诵核查 */
.recite-trans-input.show-answer {
  border-color: var(--bamboo);
  background: var(--bamboo-soft);
  color: var(--bamboo);
}

/* 响应式 */
@media (max-width: 720px) {
  .recite-line { font-size: 17px; letter-spacing: 0.5px; }
  .recite-line .blank-input { font-size: 17px; }
  .recite-trans-input { font-size: 15px; }
  .recitation-config { flex-direction: column; gap: 12px; }
}

/* ==========================================================================
   登录 / 注册
   ========================================================================== */

.btn-user {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--card-soft);
  border: 1px solid var(--line-deep);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink-2);
  letter-spacing: 0.5px;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.btn-user:hover { border-color: var(--gold); background: var(--gold-soft); color: var(--ink); }

.btn-user.is-logged-in {
  background: var(--gold-soft);
  border-color: var(--gold);
  color: var(--ink);
}

.user-icon {
  font-family: var(--font-brush);
  font-size: 16px;
  line-height: 1;
  transform: translateY(1px);
}

/* 云同步按钮 */
.btn-sync {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--card-soft);
  border: 1px solid var(--line-deep);
  border-radius: 999px;
  padding: 7px 14px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink-2);
  letter-spacing: 0.5px;
  transition: all 0.18s ease;
  white-space: nowrap;
}

/* ==========================================================================
   用户菜单（下拉）
   ========================================================================== */

.user-menu-wrapper {
  position: relative;
}

.user-arrow {
  font-size: 10px;
  margin-left: 2px;
  transition: transform 0.18s ease;
  opacity: 0.5;
}

.btn-user.is-logged-in .user-arrow {
  opacity: 0.8;
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  background: var(--card);
  border: 1px solid var(--line-deep);
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.06);
  padding: 6px;
  z-index: 200;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.user-dropdown.is-hidden {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.user-dropdown-item {
  appearance: none;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border-radius: 7px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink);
  letter-spacing: 0.5px;
  transition: background 0.14s ease;
  white-space: nowrap;
}

.user-dropdown-item:hover {
  background: var(--gold-soft);
}

.user-dropdown-item--danger {
  color: var(--cinnabar);
}

.user-dropdown-item--danger:hover {
  background: rgba(var(--cinnabar-rgb, 196, 46, 26), 0.06);
}

.dropdown-item-icon {
  font-size: 14px;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
}

.dropdown-divider {
  border: 0;
  height: 1px;
  background: var(--line);
  margin: 4px 8px;
}

/* 登录弹窗 */
.auth-modal { max-width: 420px; }

.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.auth-tab {
  appearance: none;
  border: 0;
  cursor: pointer;
  flex: 1;
  padding: 10px 0;
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink-3);
  background: transparent;
  border-bottom: 2px solid transparent;
  transition: all 0.18s ease;
}

.auth-tab:hover { color: var(--ink); }

.auth-tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--cinnabar);
  font-weight: 600;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-form .field { margin: 0; }

.auth-form .form-feedback {
  font-size: 13px;
  margin: 0;
  padding: 8px 12px;
  border-radius: var(--radius);
  line-height: 1.5;
}

.auth-form .form-feedback:empty { display: none; }

.auth-form .form-feedback.success {
  background: rgba(46, 125, 50, 0.08);
  color: #2e7d32;
  border: 1px solid rgba(46, 125, 50, 0.2);
}

.auth-form .form-feedback.error {
  background: var(--cinnabar-soft);
  color: var(--cinnabar-deep);
  border: 1px solid rgba(168, 58, 42, 0.2);
}

/* 登录方式切换（用户名 / 手机号） */
.auth-login-method {
  display: flex;
  gap: 0;
  margin-bottom: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.auth-method-btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  flex: 1;
  padding: 8px 0;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink-3);
  background: transparent;
  transition: all 0.15s ease;
}

.auth-method-btn:hover { color: var(--ink); background: var(--card-soft); }

.auth-method-btn.is-active {
  color: #fff;
  background: var(--cinnabar);
  font-weight: 600;
}

/* 发送验证码按钮 */
#btn-send-code {
  white-space: nowrap;
  min-width: 90px;
  text-align: center;
  padding: 6px 10px;
  font-size: 12px;
}

#btn-send-code.is-counting {
  opacity: 0.6;
  cursor: not-allowed;
  border-color: var(--line);
  color: var(--ink-3);
}

/* ==========================================================================
   资源库面板
   ========================================================================== */
/* 资源库面板 */
#panel-library {
  /* 资源库面板使用普通文档流，顶部功能栏正常显示 */
}

.library-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0;
}

/* 搜索框 */
.library-search {
  max-width: var(--max-w);
  margin: 0 auto 16px;
}

.library-search-input {
  width: 100%;
  padding: 10px 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.library-search-input::placeholder {
  color: var(--ink-4);
}

.library-search-input:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(180, 150, 90, 0.12);
}

/* 搜索结果分组标题 */
.library-search-group {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--cinnabar);
  margin: 18px 0 8px;
  padding-left: 4px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.library-search-group:first-child {
  margin-top: 0;
}

/* 子标签栏 —— 资源库内容区顶部 */
.library-subtabs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  padding: 6px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.library-subtab {
  padding: 8px 20px;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--ink-3);
  background: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
}

.library-subtab:hover {
  color: var(--ink);
  background: var(--bamboo-soft);
}

.library-subtab.is-active {
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
  font-weight: 600;
}

/* 分类子标签 —— 各分区内部的分类切换 */
.library-category-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 14px;
  padding: 4px;
  background: var(--card-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.library-cat-tab {
  padding: 5px 12px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--ink-3);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.library-cat-tab:hover {
  color: var(--ink);
  background: var(--bamboo-soft);
}

.library-cat-tab.is-active {
  color: var(--bamboo);
  background: var(--bamboo-soft);
  font-weight: 600;
}

/* 分区头部 */
.library-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.library-section-title {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--ink);
  margin: 0;
  font-weight: 600;
}

/* 资源列表 */
.library-list {
  display: grid;
  gap: 12px;
}

.library-empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--ink-4);
  font-size: 14px;
}

/* 资源库登录提示 */
.library-login-prompt {
  text-align: center;
  padding: 64px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.library-login-icon {
  font-size: 48px;
  line-height: 1;
}

.library-login-text {
  color: var(--ink-3);
  font-size: 15px;
  margin: 0;
}

.library-login-btn {
  margin-top: 4px;
}

/* 资源卡片 */
.lib-card {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all 0.2s;
  gap: 14px;
}

.lib-card:hover {
  border-color: var(--gold);
  box-shadow: 0 2px 12px rgba(90, 70, 40, 0.06);
}

.lib-card-info {
  flex: 1;
  min-width: 0;
}

.lib-card-title {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--ink);
  font-weight: 600;
  margin: 0 0 4px;
}

.lib-card-title .lib-card-dynasty {
  font-weight: 400;
  font-size: 13px;
  color: var(--ink-4);
  margin-left: 8px;
}

.lib-card-meta {
  font-size: 13px;
  color: var(--ink-3);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lib-card-author {
  color: var(--cinnabar);
  font-weight: 500;
}

.lib-card-word {
  font-family: var(--font-brush);
  font-size: 28px;
  color: var(--ink);
  min-width: 48px;
  text-align: center;
}

.lib-card-word .lib-card-pinyin {
  display: block;
  font-family: var(--font-serif);
  font-size: 12px;
  color: var(--ink-4);
  font-weight: 400;
  margin-top: 2px;
}

.lib-card-meanings {
  font-size: 13px;
  color: var(--ink-2);
  margin: 0;
  line-height: 1.6;
}

.lib-card-actions {
  flex-shrink: 0;
  display: flex;
  gap: 6px;
}

.lib-card-actions .btn {
  font-size: 12px;
  padding: 6px 14px;
}

/* 资源库添加按钮 */
.lib-add-btn {
  flex-shrink: 0;
  font-size: 12px;
  padding: 5px 14px;
  border: 1px solid var(--gold);
  background: transparent;
  color: var(--ink);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.lib-add-btn:hover {
  background: var(--gold);
  color: #fff;
}

.lib-add-btn.is-added {
  border-color: var(--ink-4);
  color: var(--ink-4);
  background: transparent;
  cursor: default;
  opacity: 0.6;
}

.lib-add-btn-poetry {
  margin-top: 0;
  align-self: flex-start;
}

/* 响应式 */
@media (max-width: 720px) {
  .lib-card {
    flex-wrap: wrap;
    padding: 14px 16px;
  }
  .lib-card-actions {
    width: 100%;
    justify-content: flex-end;
  }
}

/* ==========================================================================
   响应式适配
   ========================================================================== */
@media (max-width: 960px) {
  .recite-layout { grid-template-columns: 1fr; }
  .add-panel { position: static; }
}

@media (max-width: 820px) {
  .header-inner { padding: 12px 16px; gap: 12px; flex-wrap: wrap; }
  .header-right { width: 100%; gap: 8px; }
  .tabs { flex: 1; min-width: 0; }
  .tab { padding: 7px 12px; font-size: 13px; }
  .tab-glyph { font-size: 15px; }
}

@media (max-width: 720px) {
  .header-inner { padding: 12px 16px; gap: 14px; }
  .brand-title { font-size: 24px; }
  .seal { width: 40px; height: 40px; font-size: 26px; }
  .header-right { width: 100%; gap: 10px; }
  .tabs { flex: 1; min-width: 0; }
  .tab { flex: 1; justify-content: center; padding: 9px 10px; }
  .ai-status { flex: 0 0 auto; max-width: 180px; }
  .btn-user { flex: 0 0 auto; padding: 7px 12px; font-size: 12px; }
  .user-menu-wrapper { flex: 0 0 auto; }

  .site-main { padding: 20px 14px 40px; }
  .panel { padding: 20px 18px; }

  .modal-backdrop { padding: 14px; }
  .modal { padding: 22px 18px; }

  .article-title { font-size: 28px; }
  .para-text { font-size: 18px; letter-spacing: 1px; }

  .import-actions { flex-direction: column; align-items: stretch; }
  .import-actions-left { justify-content: center; }
  .import-actions .btn-primary { width: 100%; }

  .field-row { flex-direction: column; gap: 0; }
  .field-pinyin { max-width: none; }

  .cloze-answers-list { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 440px) {
  .cloze-answers-list { grid-template-columns: 1fr; }
  .list-tools { width: 100%; }
  .search-input { flex: 1; min-width: 0; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}