/* ==========================================================================
   parchment-themes.css — 古缃残卷双主题
   加载顺序：theme.css → components.css → 本文件

   三套主题：
   [data-theme="dark"]           原水墨暗色（默认，已在 theme.css 定义）
   [data-theme="parchment"]     缃色残卷亮色 — 泛黄旧宣纸
   [data-theme="dark-parchment"] 暗缃夜读暗色 — 烛灯下旧古卷

   字体：思源宋体 Noto Serif SC，行高 1.8
   纹理：SVG 内联宣纸噪点，不引入外部图片
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Noto Serif SC 字体引入（Google Fonts）
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   1. [data-theme="dark"] — 原水墨暗色（显式声明，便于切换时覆盖）
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --bg-void:        #0d0d12;
  --bg-ink:         #15151e;
  --bg-ink-deep:     #0f0f16;
  --bg-panel:       rgba(21, 21, 30, 0.72);

  --jade:           #4a7c7e;
  --jade-light:     #5a9092;
  --jade-dim:       rgba(74, 124, 126, 0.14);
  --cinnabar:       #8b3a3a;
  --cinnabar-light: #a04545;
  --cinnabar-dim:   rgba(139, 58, 58, 0.14);
  --gold:           #8a7a4a;
  --gold-light:     #a3925a;
  --gold-dim:       rgba(138, 122, 74, 0.14);

  --text-primary:   #d5d0c8;
  --text-secondary: #8a8580;
  --text-muted:     #5a5550;
  --text-jade:      #6a9c9e;
  --text-gold:      #a3925a;
  --text-cinnabar:  #a04545;

  --border-ink:     rgba(255, 255, 255, 0.06);
  --border-jade:    rgba(74, 124, 126, 0.30);
  --border-gold:    rgba(138, 122, 74, 0.30);
  --border-cinnabar: rgba(139, 58, 58, 0.30);

  --shadow-panel:  0 6px 24px rgba(0, 0, 0, 0.45);
  --shadow-float:  0 4px 16px rgba(0, 0, 0, 0.35);
  --glow-jade:     0 0 10px rgba(74, 124, 126, 0.25);
  --glow-gold:     0 0 10px rgba(138, 122, 74, 0.25);
  --glow-cinnabar: 0 0 10px rgba(139, 58, 58, 0.25);

  /* 宣纸纹理参数 */
  --paper-noise-opacity: 0.03;
  --paper-noise-color:   "0.55 0.50 0.42";  /* R G B（0-1 范围，用于 feColorMatrix） */
  --paper-bg-gradient:   linear-gradient(165deg, #0d0d12 0%, #101019 40%, #0d0d12 100%);
  --paper-fog-colors:    radial-gradient(ellipse 70% 50% at 30% 15%, rgba(74, 124, 126, 0.04), transparent 65%),
                         radial-gradient(ellipse 50% 40% at 80% 75%, rgba(138, 122, 74, 0.035), transparent 65%),
                         radial-gradient(ellipse 90% 60% at 50% 50%, rgba(21, 21, 30, 0.3), transparent 75%);

  --ink-paper-opacity:   0.03;  /* zhimo-ink-paper 透明度 */
}

/* --------------------------------------------------------------------------
   2. [data-theme="parchment"] — 缃色残卷亮色主题
   泛黄旧宣纸残卷风格 · 仙风道骨 · 缃色 #F3EAD8 底色 · 深褐墨迹 · 朱砂印章
   -------------------------------------------------------------------------- */
[data-theme="parchment"] {
  /* 背景色系 — 缃色旧宣纸 */
  --bg-void:        #F3EAD8;   /* 缃色残卷底色 */
  --bg-ink:         #EDE2CC;   /* 略深宣纸色 */
  --bg-ink-deep:    #E5D9C0;   /* 更深泛黄 */
  --bg-panel:       rgba(255, 250, 238, 0.65);  /* 半透明旧纸面板 */

  /* 点缀色 — 适配亮底的高饱和度 */
  --jade:           #4a7c5e;   /* 墨竹青（亮底加深） */
  --jade-light:     #5a8c6e;
  --jade-dim:       rgba(74, 124, 94, 0.12);
  --cinnabar:       #9a2e2a;   /* 朱砂红（亮底加深） */
  --cinnabar-light: #b03830;
  --cinnabar-dim:   rgba(154, 46, 42, 0.10);
  --gold:           #7a6228;   /* 旧金墨色 */
  --gold-light:     #8a7238;
  --gold-dim:       rgba(122, 98, 40, 0.12);

  /* 文字色 — 深褐墨迹 */
  --text-primary:   #3d2b1f;   /* 深褐墨迹主文字 */
  --text-secondary: #6b5a45;   /* 次要文字 */
  --text-muted:     #9a8870;   /* 弱化文字 */
  --text-jade:      #3a6a4e;   /* 墨竹青文字 */
  --text-gold:      #6a5218;   /* 旧金文字 */
  --text-cinnabar:  #8a2820;   /* 朱砂文字 */

  /* 边框 — 旧纸焦边 */
  --border-ink:     rgba(122, 92, 50, 0.15);
  --border-jade:    rgba(74, 124, 94, 0.30);
  --border-gold:    rgba(122, 98, 40, 0.30);
  --border-cinnabar: rgba(154, 46, 42, 0.30);

  /* 字体 — 思源宋体 */
  --font-serif:    "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-kai:      "Noto Serif SC", "Kaiti SC", "STKaiti", "KaiTi", serif;
  --font-mono:     "JetBrains Mono", "Fira Code", "Consolas", monospace;

  /* 阴影 — 轻柔纸面浮起 */
  --shadow-panel:  0 4px 20px rgba(122, 92, 50, 0.12);
  --shadow-float:  0 3px 12px rgba(122, 92, 50, 0.08);
  --glow-jade:     0 0 8px rgba(74, 124, 94, 0.15);
  --glow-gold:     0 0 8px rgba(122, 98, 40, 0.15);
  --glow-cinnabar: 0 0 8px rgba(154, 46, 42, 0.15);

  /* 圆角 — 同原 */
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 宣纸纹理参数 */
  --paper-noise-opacity: 0.06;  /* 亮色底纹理更明显 */
  --paper-noise-color:   "0.75 0.65 0.50";  /* 暖褐噪点色 */
  --paper-bg-gradient:   linear-gradient(165deg, #F3EAD8 0%, #EFE3CD 40%, #F3EAD8 100%);
  --paper-fog-colors:    radial-gradient(ellipse 70% 50% at 30% 15%, rgba(122, 92, 50, 0.04), transparent 65%),
                         radial-gradient(ellipse 50% 40% at 80% 75%, rgba(154, 46, 42, 0.025), transparent 65%),
                         radial-gradient(ellipse 90% 60% at 50% 50%, rgba(237, 226, 204, 0.3), transparent 75%);

  --ink-paper-opacity:   0.015;  /* zhimo-ink-paper 极低透明度，不遮挡纸张纹理 */

  /* 行高 */
  --reading-line-height: 1.8;
}

/* --------------------------------------------------------------------------
   3. [data-theme="dark-parchment"] — 暗缃夜读暗色主题
   烛灯下旧古卷 · 深褐底色 · 泛黄字迹 · 朱砂印章
   -------------------------------------------------------------------------- */
[data-theme="dark-parchment"] {
  /* 背景色系 — 深褐古卷 */
  --bg-void:        #2a1f15;   /* 深褐底色 */
  --bg-ink:         #34281b;   /* 略亮褐色 */
  --bg-ink-deep:    #221a12;   /* 更深褐色 */
  --bg-panel:       rgba(45, 35, 24, 0.72);  /* 半透明古卷面板 */

  /* 点缀色 — 烛光灯下色彩 */
  --jade:           #5a8a6e;   /* 暗竹青 */
  --jade-light:     #6a9a7e;
  --jade-dim:       rgba(90, 138, 110, 0.14);
  --cinnabar:       #b04030;   /* 烛光朱砂 */
  --cinnabar-light: #c0503a;
  --cinnabar-dim:   rgba(176, 64, 48, 0.14);
  --gold:           #9a8030;   /* 烛光金 */
  --gold-light:     #b09038;
  --gold-dim:       rgba(154, 128, 48, 0.14);

  /* 文字色 — 泛黄字迹 */
  --text-primary:   #d4c4a8;   /* 泛黄主文字 */
  --text-secondary: #a89880;   /* 次要文字 */
  --text-muted:     #7a6a52;   /* 弱化文字 */
  --text-jade:      #6a9a7e;   /* 暗竹青文字 */
  --text-gold:      #b09038;   /* 烛光金文字 */
  --text-cinnabar:  #c0503a;   /* 朱砂文字 */

  /* 边框 */
  --border-ink:     rgba(180, 150, 100, 0.10);
  --border-jade:    rgba(90, 138, 110, 0.28);
  --border-gold:    rgba(154, 128, 48, 0.28);
  --border-cinnabar: rgba(176, 64, 48, 0.28);

  /* 字体 — 同 */
  --font-serif:    "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-kai:      "Noto Serif SC", "Kaiti SC", "STKaiti", "KaiTi", serif;
  --font-mono:     "JetBrains Mono", "Fira Code", "Consolas", monospace;

  /* 阴影 — 烛光投影 */
  --shadow-panel:  0 6px 24px rgba(0, 0, 0, 0.35);
  --shadow-float:  0 4px 16px rgba(0, 0, 0, 0.25);
  --glow-jade:     0 0 10px rgba(90, 138, 110, 0.20);
  --glow-gold:     0 0 10px rgba(154, 128, 48, 0.20);
  --glow-cinnabar: 0 0 10px rgba(176, 64, 48, 0.20);

  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* 宣纸纹理参数 */
  --paper-noise-opacity: 0.04;  /* 低透明度噪点 */
  --paper-noise-color:   "0.65 0.55 0.40";  /* 暖褐噪点色 */
  --paper-bg-gradient:   linear-gradient(165deg, #2a1f15 0%, #30241a 40%, #2a1f15 100%);
  --paper-fog-colors:    radial-gradient(ellipse 70% 50% at 30% 15%, rgba(176, 64, 48, 0.05), transparent 65%),
                         radial-gradient(ellipse 50% 40% at 80% 75%, rgba(154, 128, 48, 0.04), transparent 65%),
                         radial-gradient(ellipse 90% 60% at 50% 50%, rgba(45, 35, 24, 0.3), transparent 75%);

  --ink-paper-opacity:   0.02;  /* zhimo-ink-paper 低透明度 */

  /* 行高 */
  --reading-line-height: 1.8;
}

/* ==========================================================================
   主题背景渲染层
   ========================================================================== */

/* ---------- body 背景继承变量 ---------- */
body {
  background-color: var(--bg-void);
  color: var(--text-primary);
  line-height: var(--reading-line-height, 1.75);
  font-family: var(--font-serif);
}

/* ---------- 背景：云雾渐变 + 底层渐变 ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    var(--paper-fog-colors),
    var(--paper-bg-gradient);
}

/* ---------- 宣纸噪点纹理 — SVG noise（各主题独立参数） ---------- */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--paper-noise-opacity);
  /* SVG fractalNoise 宣纸纤维纹理 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='paper'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='5' stitchTiles='stitch' seed='3'/%3E%3CfeColorMatrix values='0 0 0 0 0.75 0 0 0 0 0.65 0 0 0 0 0.50 0 0 0 0.8 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");
}

/* ==========================================================================
   zhimo-ink-paper 墨染背景 — 降低透明度不遮挡纸张纹理
   ========================================================================== */
.zhimo-ink-paper {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--ink-paper-opacity, 0.03);
  background:
    radial-gradient(ellipse 40% 30% at 20% 30%, rgba(60, 40, 20, 0.15), transparent 70%),
    radial-gradient(ellipse 35% 25% at 75% 65%, rgba(60, 40, 20, 0.10), transparent 70%),
    radial-gradient(ellipse 50% 40% at 50% 80%, rgba(40, 25, 10, 0.08), transparent 70%);
}

/* ==========================================================================
   组件主题适配覆盖
   ========================================================================== */

/* ---------- 面板背景适配 ---------- */
[data-theme="parchment"] .panel,
[data-theme="parchment"] .fortune-card,
[data-theme="parchment"] .list-item,
[data-theme="parchment"] .bazi-pillar,
[data-theme="parchment"] .entry-card,
[data-theme="parchment"] .collapse {
  background: var(--bg-panel);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

[data-theme="parchment"] .fortune-card {
  background: linear-gradient(160deg, rgba(255, 250, 238, 0.85), rgba(245, 235, 220, 0.9));
  box-shadow: var(--shadow-panel), inset 0 0 24px rgba(122, 98, 40, 0.04);
}

[data-theme="parchment"] .input,
[data-theme="parchment"] .textarea,
[data-theme="parchment"] .select {
  background: rgba(255, 250, 238, 0.5);
  border-color: var(--border-ink);
}

[data-theme="parchment"] .tabs {
  background: var(--bg-ink-deep);
}

[data-theme="parchment"] .progress {
  background: var(--bg-ink-deep);
}

[data-theme="dark-parchment"] .panel,
[data-theme="dark-parchment"] .fortune-card,
[data-theme="dark-parchment"] .list-item,
[data-theme="dark-parchment"] .bazi-pillar,
[data-theme="dark-parchment"] .entry-card,
[data-theme="dark-parchment"] .collapse {
  background: var(--bg-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

[data-theme="dark-parchment"] .fortune-card {
  background: linear-gradient(160deg, rgba(45, 35, 24, 0.85), rgba(34, 26, 18, 0.9));
  box-shadow: var(--shadow-panel), inset 0 0 24px rgba(154, 128, 48, 0.03);
}

[data-theme="dark-parchment"] .input,
[data-theme="dark-parchment"] .textarea,
[data-theme="dark-parchment"] .select {
  background: rgba(34, 26, 18, 0.5);
  border-color: var(--border-ink);
}

[data-theme="dark-parchment"] .tabs {
  background: var(--bg-ink-deep);
}

[data-theme="dark-parchment"] .progress {
  background: var(--bg-ink-deep);
}

/* ---------- 按钮适配 ---------- */
[data-theme="parchment"] .btn--primary {
  background: linear-gradient(135deg, rgba(74,124,94,0.15), rgba(74,124,94,0.04));
}
[data-theme="parchment"] .btn--secondary {
  background: linear-gradient(135deg, rgba(122,98,40,0.15), rgba(122,98,40,0.04));
}
[data-theme="parchment"] .btn--danger {
  background: linear-gradient(135deg, rgba(154,46,42,0.15), rgba(154,46,42,0.04));
}

[data-theme="dark-parchment"] .btn--primary {
  background: linear-gradient(135deg, rgba(90,138,110,0.18), rgba(90,138,110,0.05));
}
[data-theme="dark-parchment"] .btn--secondary {
  background: linear-gradient(135deg, rgba(154,128,48,0.18), rgba(154,128,48,0.05));
}
[data-theme="dark-parchment"] .btn--danger {
  background: linear-gradient(135deg, rgba(176,64,48,0.18), rgba(176,64,48,0.05));
}

/* ---------- 印章标签适配 ---------- */
[data-theme="parchment"] .badge--jade {
  background: rgba(74, 124, 94, 0.10);
}
[data-theme="parchment"] .badge--cinnabar {
  background: rgba(154, 46, 42, 0.10);
}
[data-theme="parchment"] .badge--gold {
  background: rgba(122, 98, 40, 0.10);
}
[data-theme="parchment"] .badge--ghost {
  background: rgba(122, 92, 50, 0.05);
}

[data-theme="dark-parchment"] .badge--jade {
  background: rgba(90, 138, 110, 0.12);
}
[data-theme="dark-parchment"] .badge--cinnabar {
  background: rgba(176, 64, 48, 0.12);
}
[data-theme="dark-parchment"] .badge--gold {
  background: rgba(154, 128, 48, 0.12);
}

/* ---------- 兼容旧类名 ---------- */
[data-theme="parchment"] .badge--cyber { background: rgba(74, 124, 94, 0.10); }
[data-theme="parchment"] .badge--danger { background: rgba(154, 46, 42, 0.10); }
[data-theme="parchment"] .entry-card--cyber { background: linear-gradient(160deg, var(--jade-dim), rgba(255, 250, 238, 0.7)); }
[data-theme="dark-parchment"] .badge--cyber { background: rgba(90, 138, 110, 0.12); }
[data-theme="dark-parchment"] .badge--danger { background: rgba(176, 64, 48, 0.12); }
[data-theme="dark-parchment"] .entry-card--cyber { background: linear-gradient(160deg, var(--jade-dim), rgba(45, 35, 24, 0.7)); }

/* ---------- 签筒 / 铜钱 / 圣杯 / 祈福灯 — 金属色调微调 ---------- */
[data-theme="parchment"] .sign-tube__body {
  background: linear-gradient(180deg, #6a5238 0%, #8a7248 20%, #6a5238 60%, #4a3820 100%);
}
[data-theme="parchment"] .coin {
  background: radial-gradient(circle, var(--gold-light) 0%, var(--gold) 70%, #5a4a20 100%);
}
[data-theme="parchment"] .coin__hole {
  background: var(--bg-void);
}

[data-theme="dark-parchment"] .sign-tube__body {
  background: linear-gradient(180deg, #4a3820 0%, #6a5238 20%, #4a3820 60%, #2f2010 100%);
}
[data-theme="dark-parchment"] .coin {
  background: radial-gradient(circle, var(--gold-light) 0%, var(--gold) 70%, #5a4a20 100%);
}
[data-theme="dark-parchment"] .coin__hole {
  background: var(--bg-void);
}

/* ==========================================================================
   Heti 赫蹏古文排版增强
   仅用于签文、卦辞、干支、典籍等古文内容容器
   UI 组件标签禁止加 heti 类
   ========================================================================== */

/* ---------- Heti 基础排版 ---------- */
.heti {
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: var(--reading-line-height, 1.8);
  text-align: justify;
  text-justify: inter-ideograph;  /* 中英文混排间距 */
  word-break: normal;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}

/* 段落间距 */
.heti p {
  margin: 0 0 0.8em 0;
  text-indent: 2em;  /* 首行缩进两字 */
}
.heti p:last-child { margin-bottom: 0; }

/* 标题 */
.heti h1, .heti h2, .heti h3, .heti h4 {
  font-weight: 600;
  margin: 1.2em 0 0.6em;
  text-indent: 0;
}
.heti h1 { font-size: 1.5rem; text-align: center; letter-spacing: 4px; }
.heti h2 { font-size: 1.25rem; letter-spacing: 2px; }
.heti h3 { font-size: 1.1rem; letter-spacing: 1px; }

/* 引用 */
.heti blockquote {
  margin: 1em 0;
  padding: 0.5em 1em;
  border-left: 3px solid var(--border-gold);
  color: var(--text-secondary);
  font-style: normal;
  text-indent: 0;
}

/* 列表 */
.heti ul, .heti ol {
  margin: 0.5em 0;
  padding-left: 2em;
  text-indent: 0;
}

/* 着重号（中文下加点） */
.heti em {
  font-style: normal;
  text-emphasis: filled circle var(--cinnabar);
  -webkit-text-emphasis: filled circle var(--cinnabar);
  text-emphasis-position: under;
  -webkit-text-emphasis-position: under;
}

/* 注释文字 */
.heti small {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---------- Heti 古籍增强变体 ---------- */
.heti--ancient {
  /* 古籍竖排留空（横排时增大行距） */
  line-height: 1.9;
  letter-spacing: 0.5px;
}

/* 古籍标题装饰 — 鱼尾标记 */
.heti--ancient h2::before,
.heti--ancient h2::after {
  content: "❖";
  display: inline-block;
  margin: 0 0.5em;
  color: var(--text-gold);
  font-size: 0.7em;
  vertical-align: middle;
}

/* 古籍正文 — 楷体倾向 */
.heti--ancient .fortune-card__text,
.heti--ancient p {
  font-family: var(--font-kai);
  letter-spacing: 1px;
}

/* ---------- 移动端可读性增强 ---------- */
@media (max-width: 480px) {
  .heti {
    font-size: 0.95rem;
    line-height: 1.85;
  }
  .heti--ancient {
    line-height: 1.95;
  }
  /* 移动端增大文字对比度 */
  [data-theme="parchment"] .heti {
    color: #2d1f15;  /* 略加深主文字 */
  }
  [data-theme="dark-parchment"] .heti {
    color: #e0d0b0;  /* 略提亮泛黄文字 */
  }
}

/* ==========================================================================
   主题切换过渡动画
   ========================================================================== */
body,
.panel,
.fortune-card,
.list-item,
.bazi-pillar,
.entry-card,
.collapse,
.btn,
.badge,
.input,
.textarea,
.select,
.tabs,
.tab,
.progress {
  transition:
    background-color 0.4s var(--ease-ink),
    color 0.4s var(--ease-ink),
    border-color 0.4s var(--ease-ink),
    box-shadow 0.4s var(--ease-ink);
}

/* ==========================================================================
   主题切换器组件样式
   ========================================================================== */
.theme-switcher {
  display: inline-flex;
  gap: 4px;
  background: var(--bg-ink-deep);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-md);
  padding: 4px;
}
.theme-switcher__btn {
  flex: 1;
  min-width: max-content;
  padding: 8px 12px;
  text-align: center;
  font-size: 0.78rem;
  font-family: var(--font-kai);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.25s var(--ease-ink);
  letter-spacing: 1px;
  border: 1px solid transparent;
  background: transparent;
}
.theme-switcher__btn.is-active {
  background: var(--jade-dim);
  color: var(--text-jade);
  border-color: var(--border-jade);
}
.theme-switcher__btn:hover:not(.is-active) {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

/* ==========================================================================
   浮动主题切换器（右下角）
   ========================================================================== */
.theme-float {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px;
  background: var(--bg-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
}
.theme-float__btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-kai);
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s var(--ease-ink, ease);
  padding: 0;
  line-height: 1;
}
.theme-float__btn.is-active {
  background: var(--jade-dim);
  color: var(--text-jade);
  border-color: var(--border-jade);
}
.theme-float__btn:hover:not(.is-active) {
  color: var(--text-primary);
  background: var(--bg-ink-deep);
}

/* 移动端缩小 */
@media (max-width: 480px) {
  .theme-float {
    right: 10px;
    bottom: 10px;
    padding: 4px;
  }
  .theme-float__btn {
    width: 32px;
    height: 32px;
    font-size: 0.82rem;
  }
}

/* ==========================================================================
   顶栏 / 底部免责栏 / 底部 tabbar — 主题化背景
   避免硬编码深色，parchment 主题下融入纸张底色
   ========================================================================== */
[data-theme="parchment"] .nav-top,
[data-theme="dark-parchment"] .nav-top {
  background: var(--bg-panel);
  border-bottom-color: var(--border-ink);
}
[data-theme="parchment"] .disclaimer-bar,
[data-theme="dark-parchment"] .disclaimer-bar {
  background: var(--bg-panel);
  border-top-color: var(--border-ink);
}
[data-theme="parchment"] .tabbar,
[data-theme="dark-parchment"] .tabbar {
  background: var(--bg-panel);
  border-top-color: var(--border-ink);
}
[data-theme="parchment"] .modal,
[data-theme="dark-parchment"] .modal {
  background: var(--bg-ink);
}

/* fortune-card 硬编码深色背景覆盖 */
[data-theme="parchment"] .fortune-card,
[data-theme="dark-parchment"] .fortune-card {
  background: var(--bg-panel);
}

/* loader-overlay 主题化 */
[data-theme="parchment"] .loader-overlay,
[data-theme="dark-parchment"] .loader-overlay {
  background: rgba(0, 0, 0, 0.5);
}

/* toast-info 硬编码深色覆盖 */
[data-theme="parchment"] .toast--info,
[data-theme="dark-parchment"] .toast--info {
  background: var(--bg-panel);
}