/* ============================================================
   Cyber Art Universe — 全局样式

   色彩语义（详见 src/api/index.ts 头部注释）：
   --accent #7c3aed (紫) = Read 侧  |  --cyan #06b6d4 (青) = Write 侧
   --success (绿) / --error (红) / --warn (黄) = 语义状态色
   ============================================================ */

/* — CSS Variables — */
:root {
  /* Backgrounds */
  --bg: #0a0a0f;
  --bg-rgb: 10, 10, 15;
  --bg-card: #12121a;
  --bg-hover: #1a1a26;
  --bg-editor-focus: #0d0d15;

  /* Text */
  --text: #e0e0e8;
  --text-dim: #888899;
  --text-muted: #555566;
  --text-on-accent: #fff;

  /* Accent — purple (primary: Read side, active states) */
  --accent: #7c3aed;
  --accent-rgb: 124, 58, 237;
  --accent-light: #a78bfa;

  /* Accent — cyan (secondary: Write side, info, links) */
  --cyan: #06b6d4;
  --cyan-rgb: 6, 182, 212;

  /* Semantic status */
  --success: #22c55e;
  --success-rgb: 34, 197, 94;
  --error: #ef4444;
  --warn: #f59e0b;

  /* UI chrome */
  --border: #1e1e30;
  --ui-knob: #666;
  --text-input-bg: #0d0d15;

  /* 卡片交互统一 */
  --card-bg: transparent;
  --card-bg-hover: var(--bg-hover);
  --card-bg-active: rgba(var(--accent-rgb), 0.1);
  --card-border: var(--border);
  --card-border-hover: var(--accent-light);
  --card-border-active: var(--accent);
  --card-shadow-hover: 0 4px 12px rgba(0,0,0,0.2);
  --card-shadow-active: 0 0 12px rgba(var(--accent-rgb), 0.18);
  --elf-input-height: 70px;  /* 头像 / 输入框 / 发送按钮统一高度 */

  /* Markdown 渲染统一变量 */
  --md-font-size: 0.82rem;
  --md-line-height: 1.6;
  --md-p-margin: 0.75rem 0;
  --md-heading-margin: 0.5rem 0 0.15rem;
  --md-list-margin: 0.2rem 0;
  --md-list-padding: 1.2rem;
  --md-code-bg: rgba(var(--accent-rgb), 0.1);
  --md-code-padding: 0.1rem 0.3rem;
  --md-code-radius: 3px;
  --md-code-font-size: 0.78rem;
  --md-pre-bg: rgba(0,0,0,0.2);
  --md-pre-padding: 0.75rem;
  --md-pre-radius: 4px;

  /* Dimensions */
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --w-main: 800px;
  --w-wide: 1100px;

  /* 告诉浏览器这是暗色主题，原生控件自动适配 */
  color-scheme: dark;
  accent-color: var(--accent);
}

/* — Reset — */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; scrollbar-gutter: stable; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Write / Read 页面: flex 列自适应，split-view 填充剩余空间。
   height:100vh 给 flex 容器确定高度让 flex:1 生效；
   不加 overflow:hidden，内容超出时自然出滚动条。 */
body[data-page="write"],
body[data-page="read"],
body[data-page="index"] {
  display: flex;
  flex-direction: column;
  height: 100vh;
}
body[data-page="write"] .footer,
body[data-page="read"] .footer,
body[data-page="index"] .footer {
  margin-top: 0;
}

/* — Read 侧阅读区（嵌入 split-mid 内的章节正文） — */
.split-mid .read-content {
  flex: 1;
  overflow-y: auto;
  padding: 2rem 2rem 1rem;
  font-size: var(--read-size, 16px);
  line-height: 1.85;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}
.split-mid .chapter-nav {
  display: flex;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}
.split-mid .chapter-info {
  padding: 0 2rem 1.5rem;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
  font-size: 0.82rem;
  color: var(--text-muted);
}
/* Read 侧目录/作品列表（嵌入 split-mid） */
.split-mid .category-bar {
  flex-shrink: 0;
}
.split-mid .work-list {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.5rem;
}
.split-mid .work-hero {
  padding: 1.5rem 2rem 0.5rem;
}
.split-mid .chapter-list {
  padding: 0.5rem 2rem;
}
.split-mid .section-header {
  padding: 0.5rem 2rem 0;
}
/* Read 侧面包屑头部（嵌入 split-view 上方或 split-mid 顶部） */
.read-brand-wrap {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
a { color: var(--accent-light); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--cyan); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

/* — Layout — */
.container { max-width: var(--w-wide); margin: 0 auto; padding: 0 1.5rem; }
.container-narrow { max-width: var(--w-main); margin: 0 auto; padding: 0 1.5rem; }

/* — Nav — */
.top-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(var(--bg-rgb), 0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}
.top-nav .container {
  display: flex; align-items: center;
}
.nav-brand {
  font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text); flex-shrink: 0;
}
.nav-brand span { color: var(--accent-light); }
/* — Nav Tabs — */
.nav-tabs { display: flex; margin-left: 1.5rem; }
.nav-tab {
  padding: 0.15rem 1.35rem; font-size: 0.82rem; font-weight: 600;
  background: transparent; color: var(--text-dim);
  border-bottom: 2px solid var(--border);
  transition: all 0.2s;
}
.nav-tab:hover { color: var(--text); border-bottom-color: var(--text-dim); }
.nav-tab.active {
  background: var(--accent); color: var(--text-on-accent);
  border-bottom-color: var(--accent);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.25);
}
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 0.5rem; }
.login-btn { padding: 0.35rem 0.85rem; border-radius: var(--radius); font-size: 0.8rem; border: 1px solid var(--border); background: transparent; color: var(--text-dim); transition: all 0.2s; }
.login-btn:hover { border-color: var(--accent-light); color: var(--text); }

/* — Category Bar — */
.category-bar {
  display: flex; gap: 0.4rem; padding: 1rem 1.5rem; flex-wrap: wrap;
  justify-content: center; border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.category-pill {
  padding: 0.35rem 0.85rem; border-radius: 20px; font-size: 0.82rem;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-dim); cursor: pointer; transition: all 0.15s;
  white-space: nowrap;
}
.category-pill:hover { border-color: var(--accent-light); color: var(--text); }
.category-pill.active {
  background: var(--accent); color: var(--text-on-accent); border-color: var(--accent);
  box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.2);
}
.category-pill-mine {
  border-color: var(--cyan); color: var(--cyan);
}
.category-pill-mine:hover { border-color: var(--cyan); color: var(--text-on-accent); background: rgba(var(--cyan-rgb), 0.1); }
.category-pill-mine.active {
  background: var(--cyan); color: #000; border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(var(--cyan-rgb), 0.3);
}
.category-sep {
  display: inline-block; width: 1px; height: 1.4rem;
  background: var(--border); margin: 0 0.3rem; align-self: center;
}

/* — My Works Sections — */
.my-works-section { margin-bottom: 2.5rem; }
.my-works-header {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.9rem; font-weight: 600; color: var(--text);
  padding-bottom: 0.75rem; margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.my-works-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}
.my-works-dot-published { background: var(--success); box-shadow: 0 0 6px rgba(var(--success-rgb), 0.4); }
.my-works-dot-draft { background: var(--accent-light); box-shadow: 0 0 6px rgba(var(--accent-rgb), 0.4); }
.my-works-dot-closed { background: var(--text-muted); }
.my-works-count {
  font-size: 0.72rem; color: var(--text-muted); font-weight: 400;
  margin-left: 0.25rem;
}

/* — My Works Onboarding — */
.my-works-onboard {
  text-align: center; padding: 4rem 2rem;
}
.my-works-onboard-title {
  font-size: 1.3rem; font-weight: 700; color: var(--text);
  margin-bottom: 0.5rem;
}
.my-works-onboard-sub {
  font-size: 0.9rem; color: var(--text-dim); max-width: 400px;
  margin: 0 auto; line-height: 1.6;
}

/* — Buttons — */
.btn {
  padding: 0.6rem 1.6rem; border-radius: var(--radius); font-size: 0.95rem;
  font-weight: 600; border: none; transition: all 0.2s;
}
.btn-primary { background: var(--accent); color: var(--text-on-accent); }
.btn-primary:hover { background: var(--accent-light); color: var(--text-on-accent); }
.btn-ghost { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--accent-light); color: var(--text); }

/* — Category Cards — */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.75rem; }
.cat-card {
  display: block; padding: 1.25rem 1rem; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  text-align: center; transition: all 0.2s;
}
.cat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.cat-card .icon { font-size: 1.6rem; margin-bottom: 0.4rem; }
.cat-card .label { font-weight: 600; font-size: 0.95rem; }

/* — Work Cards — */
.work-list { display: flex; flex-direction: column; gap: 0.75rem; }
.work-card {
  display: flex; gap: 1rem; padding: 1.25rem; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: all 0.2s; cursor: pointer;
}
.work-card:hover { border-color: var(--accent-light); background: var(--bg-hover); }
.work-card-left { flex-shrink: 0; }
.work-cover {
  width: 64px; height: 85px; border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; color: var(--text-on-accent); font-weight: 700;
}
.work-card-body { flex: 1; min-width: 0; }
.work-card-body h3 { font-size: 1.05rem; margin-bottom: 0.2rem; }
.work-card-body .meta { font-size: 0.82rem; color: var(--text-dim); margin-bottom: 0.35rem; }
.work-card-body .summary { font-size: 0.88rem; color: var(--text-dim); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.tag-list { display: flex; gap: 0.35rem; margin-top: 0.35rem; flex-wrap: wrap; }
.tag { font-size: 0.72rem; padding: 0.15rem 0.5rem; border-radius: 4px; background: rgba(var(--accent-rgb), 0.15); color: var(--accent-light); }

/* — Section Header — */
.section-header { padding: 2rem 0 1rem; }
.section-header h2 { font-size: 1.3rem; font-weight: 700; }
.section-header .subtitle { color: var(--text-dim); font-size: 0.85rem; margin-top: 0.25rem; }

/* — Work Detail — */
.work-hero { padding: 2rem 0 1.5rem; }
.work-hero h1 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.3rem; }
.work-hero .meta { color: var(--text-dim); font-size: 0.9rem; margin-bottom: 0.5rem; }
.work-hero .desc { color: var(--text-dim); line-height: 1.6; margin-bottom: 0.75rem; }

.chapter-list { display: flex; flex-direction: column; gap: 0.5rem; }
.chapter-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.85rem 1rem; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: all 0.15s; cursor: pointer;
}
.chapter-item:hover { border-color: var(--accent); background: var(--bg-hover); }
.chapter-item .ch-title { font-weight: 500; }
.chapter-item .ch-summary { font-size: 0.8rem; color: var(--text-dim); margin-top: 0.15rem; }
.chapter-item .ch-wordcount { font-size: 0.75rem; color: var(--text-muted); white-space: nowrap; }

/* — Reading View — */
.read-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(var(--bg-rgb), 0.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
  flex-shrink: 0;
}
.read-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.read-header .container-narrow {
  display: flex; align-items: center; justify-content: space-between;
}
.read-breadcrumb { font-size: 0.85rem; color: var(--text-dim); word-spacing: 0.35rem; }
.read-breadcrumb a { color: var(--text-dim); }
.read-breadcrumb span { color: var(--text); }
.font-controls { display: flex; gap: 0.3rem; }
.font-controls button {
  width: 28px; height: 28px; border-radius: 4px; border: 1px solid var(--border);
  background: transparent; color: var(--text-dim); font-size: 0.75rem;
  display: flex; align-items: center; justify-content: center; transition: all 0.15s;
}
.font-controls button:hover { border-color: var(--accent-light); color: var(--text); }
.font-controls button.active { background: var(--accent); border-color: var(--accent); color: var(--text-on-accent); }

.read-content {
  padding: 2.5rem 0 2rem; font-size: var(--read-size, 16px);
  line-height: 1.85; color: var(--text);
}
.read-content h1, .read-content h2, .read-content h3 { margin: 1.5em 0 0.6em; }
.read-content h1 { font-size: 1.6em; }
.read-content h2 { font-size: 1.3em; }
.read-content h3 { font-size: 1.1em; }
.read-content p { margin: 0 0 1em; }
.read-content blockquote {
  border-left: 3px solid var(--accent); padding: 0.3em 1em;
  margin: 1em 0; color: var(--text-dim); font-style: italic;
}
.read-content code {
  font-family: var(--mono); font-size: 0.9em;
  background: rgba(var(--accent-rgb), 0.1); padding: 0.1em 0.3em; border-radius: 3px;
}
.read-content pre {
  background: var(--bg-card); padding: 1rem; border-radius: var(--radius);
  overflow-x: auto; margin: 1em 0;
}
.read-content pre code { background: none; padding: 0; }
.read-content ul, .read-content ol { padding-left: 1.5em; margin: 0.5em 0; }
.read-content li { margin: 0.25em 0; }
.read-content hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }
.read-content strong { color: var(--text-on-accent); }
.read-content em { color: var(--accent-light); }

.chapter-nav { display: flex; justify-content: space-between; padding: 1rem 0 2rem; }
.chapter-nav .btn { flex: 0 1 auto; }

.chapter-info { padding: 1rem 0 3rem; color: var(--text-dim); font-size: 0.85rem; }
.chapter-info .info-row { margin: 0.25rem 0; }

/* — Browse Page — */
.filter-bar { display: flex; gap: 0.5rem; padding: 1rem 0; flex-wrap: wrap; }
.filter-bar select, .filter-bar input {
  padding: 0.5rem 0.75rem; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text); font-size: 0.85rem;
  outline: none;
}
.filter-bar select:focus, .filter-bar input:focus { border-color: var(--accent-light); }

/* — Page Header — */
.page-header { padding: 1.5rem 0 0.5rem; }
.page-header h2 { font-size: 1.4rem; }
.back-link { font-size: 0.85rem; color: var(--text-dim); margin-bottom: 0.75rem; display: inline-block; }

/* — Footer — */
.footer { border-top: 1px solid var(--border); padding: 1.5rem 0; margin-top: 3rem; color: var(--text-muted); font-size: 0.8rem; }
.footer .container { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.footer a { color: var(--text-muted); text-decoration: underline; }
.footer a:hover { color: var(--text-dim); }

/* — States — */
.loading { text-align: center; padding: 3rem; color: var(--text-muted); }
.error { text-align: center; padding: 3rem; color: var(--error); }
.empty { text-align: center; padding: 3rem; color: var(--text-dim); }

/* — Skeleton — */
.skeleton { background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-hover) 50%, var(--bg-card) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius); }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================================
   Story Forger — 写作桌 UI
   ============================================================ */

/* — Nav: language pill toggle — */
.lang-pill {
  position: relative;
  display: inline-flex; align-items: center;
  height: 28px; width: 82px;
  border-radius: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer; user-select: none;
  overflow: hidden;
}
.lang-knob {
  position: absolute; top: 1px; left: 1px;
  width: 38px; height: 24px;
  border-radius: 24px;
  background: var(--ui-knob);
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.lang-knob.right { transform: translateX(40px); }
.lang-opt {
  flex: 1; text-align: center;
  font-size: 0.68rem; font-weight: 600; font-family: var(--mono);
  color: var(--text-muted); z-index: 1;
  transition: color 0.2s;
}
.lang-opt.active { color: var(--text-on-accent); }
.lang-pill:hover { border-color: var(--ui-knob); }

/* — KB Drawer: Preview / Edit pill toggle（与 lang-pill 同款设计） — */
.kb-mode-pill {
  position: relative;
  display: inline-flex; align-items: center;
  height: 28px; width: 96px;
  border-radius: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer; user-select: none;
  overflow: hidden;
  flex-shrink: 0;
}
.kb-mode-knob {
  position: absolute; top: 1px; left: 1px;
  width: 46px; height: 24px;
  border-radius: 24px;
  background: var(--ui-knob);
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
.kb-mode-knob.right { transform: translateX(48px); }
.kb-mode-opt {
  flex: 1; text-align: center;
  font-size: 0.68rem; font-weight: 600; font-family: var(--font);
  color: var(--text-muted); z-index: 1;
  transition: color 0.2s;
}
.kb-mode-opt.active { color: var(--text-on-accent); }
.kb-mode-pill:hover { border-color: var(--ui-knob); }

/* KB Drawer 编辑模式：显示 textarea，隐藏 preview
   !important 覆盖 renderSlotItem() 设置的内联 style="display:none" */
.kb-content-drawer .slot-preview { display: block !important; }
.kb-content-drawer .slot-textarea { display: none !important; }
.kb-content-drawer.edit-mode .slot-preview { display: none !important; }
.kb-content-drawer.edit-mode .slot-textarea { display: block !important; }

/* KB Drawer header 操作区 */
.kb-drawer-header-actions {
  display: flex; align-items: center; gap: 0.5rem;
}

/* + 新增按钮（卡片列表 header） */
.kb-add-btn {
  padding: 0.25rem 0.65rem;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.72rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
}
.kb-add-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(var(--cyan-rgb), 0.06);
}

/* — Pipeline Bar（引导条 + 作品选择器） — */
.pipeline-bar {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
/* — 作品选择按钮（替代旧 ws-select 下拉框） — */
.ws-btn {
  padding: 0.35rem 0.85rem; border-radius: 20px;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-dim); font-size: 0.82rem; outline: none;
  cursor: pointer; flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  white-space: nowrap;
}
.ws-btn:hover { border-color: var(--accent-light); color: var(--text); }
.ws-btn.has-work { color: var(--text); border-color: var(--accent-light); }

/* — 作品集浮出层 — */
.ws-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  animation: ws-fade-in 0.2s ease;
}
@keyframes ws-fade-in { from { opacity: 0; } to { opacity: 1; } }

.ws-modal {
  position: fixed;
  left: 30%; right: 30%; top: 20%; bottom: 20%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  overflow: hidden;
  animation: ws-scale-in 0.2s ease;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
@keyframes ws-scale-in { from { opacity: 0; transform: scale(0.96); } to { opacity: 1; transform: scale(1); } }

.ws-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.ws-modal-title {
  font-size: 1.1rem; font-weight: 700; color: var(--text);
  margin: 0;
}

/* — 新增作品按钮 — */
.ws-add-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px dashed var(--border); background: transparent;
  color: var(--text-muted); font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s; line-height: 1;
}
.ws-add-btn:hover {
  border-color: var(--cyan); color: var(--cyan);
  background: rgba(var(--cyan-rgb), 0.06);
}

/* — 新增作品输入行 — */
.ws-new-work-row {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(var(--accent-rgb), 0.04);
}
.ws-new-work-input {
  flex: 1; padding: 0.4rem 0.6rem;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 0.82rem; font-family: var(--font);
  outline: none; transition: border-color 0.15s;
}
.ws-new-work-input:focus { border-color: var(--accent-light); }
.ws-new-work-input::placeholder { color: var(--text-muted); }
.ws-new-work-confirm {
  padding: 0.4rem 0.85rem; border-radius: 6px;
  border: none; background: var(--accent);
  color: var(--text-on-accent); font-size: 0.78rem; font-weight: 600;
  cursor: pointer; transition: background 0.15s; white-space: nowrap;
}
.ws-new-work-confirm:hover { background: var(--accent-light); }
.ws-new-work-cancel {
  padding: 0.4rem 0.85rem; border-radius: 6px;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-dim); font-size: 0.78rem;
  cursor: pointer; transition: all 0.15s; white-space: nowrap;
}
.ws-new-work-cancel:hover { border-color: var(--text-muted); color: var(--text); }

/* — 作品卡片网格 — */
.ws-card-grid {
  flex: 1; overflow-y: auto;
  padding: 1rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
  align-content: start;
}

/* — 单张作品卡片 — */
.ws-card {
  padding: 1rem; border-radius: 8px;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s, transform 0.15s;
  display: flex; flex-direction: column; gap: 0.35rem;
  min-height: 90px;
}
.ws-card:hover {
  border-color: var(--card-border-hover); background: var(--card-bg-hover);
  transform: translateY(-1px); box-shadow: var(--card-shadow-hover);
}
.ws-card.active {
  background: var(--card-bg-active); border-color: var(--card-border-active);
  box-shadow: var(--card-shadow-active);
}

.ws-card-title {
  font-size: 0.88rem; font-weight: 600; color: var(--text);
  line-height: 1.3; overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.ws-card.active .ws-card-title { color: var(--accent-light); }

.ws-card-meta {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.7rem; color: var(--text-muted);
  margin-top: auto;
}
.ws-card-status {
  padding: 0.1rem 0.45rem; border-radius: 10px;
  font-size: 0.65rem; font-weight: 600;
  background: rgba(var(--cyan-rgb), 0.12); color: var(--cyan);
}
.ws-card-status.published { background: rgba(var(--success-rgb), 0.12); color: var(--success); }
.ws-card-status.closed { background: rgba(239,68,68,0.1); color: var(--error); }

.ws-card-empty {
  grid-column: 1 / -1;
  text-align: center; padding: 2rem 1rem;
  color: var(--text-muted); font-size: 0.85rem;
}

/* — 作品卡片三点菜单按钮 — */
.ws-card {
  position: relative;
}
.ws-card-menu-btn {
  position: absolute; top: 6px; right: 6px;
  width: 22px; height: 22px; border-radius: 50%;
  border: none; background: transparent;
  color: var(--text-muted); font-size: 0.9rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s; line-height: 1; opacity: 0;
}
.ws-card:hover .ws-card-menu-btn { opacity: 1; }
.ws-card-menu-btn:hover { background: var(--bg-hover); color: var(--text); }

/* — 弹出菜单 — */
.ws-card-menu {
  position: absolute; z-index: 210;
  min-width: 160px; max-width: 220px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  padding: 0.35rem 0;
  overflow: hidden;
}
.ws-card-menu-item {
  display: block; width: 100%; padding: 0.45rem 0.85rem;
  border: none; background: transparent;
  color: var(--text-dim); font-size: 0.78rem; font-family: var(--font);
  text-align: left; cursor: pointer;
  transition: all 0.12s; white-space: nowrap;
}
.ws-card-menu-item:hover { background: var(--bg-hover); color: var(--text); }
.ws-card-menu-divider {
  height: 1px; background: var(--border); margin: 0.25rem 0;
}
.ws-card-menu-item.ws-card-menu-item-danger {
  color: var(--error);
}
.ws-card-menu-item.ws-card-menu-item-danger:hover {
  background: rgba(239,68,68,0.1); color: var(--error);
}

/* — 编辑标题输入 — */
.ws-card-menu-edit { padding: 0.4rem 0.6rem; }
.ws-card-menu-edit-input {
  width: 100%; padding: 0.35rem 0.5rem;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 5px;
  font-size: 0.78rem; font-family: var(--font);
  outline: none; margin-bottom: 0.4rem; box-sizing: border-box;
}
.ws-card-menu-edit-input:focus { border-color: var(--accent-light); }
.ws-card-menu-edit-actions {
  display: flex; gap: 0.35rem; justify-content: flex-end;
}
.ws-card-menu-btn-confirm,
.ws-card-menu-btn-cancel {
  padding: 0.2rem 0.65rem; border-radius: 4px;
  font-size: 0.7rem; font-family: var(--font); cursor: pointer;
  transition: all 0.12s;
}
.ws-card-menu-btn-confirm {
  border: none; background: var(--accent);
  color: var(--text-on-accent);
}
.ws-card-menu-btn-confirm:hover { background: var(--accent-light); }
.ws-card-menu-btn-cancel {
  border: 1px solid var(--border); background: transparent;
  color: var(--text-dim);
}
.ws-card-menu-btn-cancel:hover { border-color: var(--text-muted); color: var(--text); }

/* — Pipeline Guide — */
.pipeline-guide {
  flex: 1;
  overflow: hidden;
}
.pipeline-steps {
  display: flex; align-items: center; gap: 0;
  justify-content: center;
  overflow-x: auto; overflow-y: hidden; white-space: nowrap;
}
.pipeline-step {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.35rem 0.85rem; border-radius: 20px;
  cursor: pointer; font-size: 0.82rem;
  border: 1px solid var(--border);
  background: transparent; color: var(--text-dim);
  transition: border-color 0.15s, color 0.15s, background-color 0.15s, box-shadow 0.15s;
  user-select: none; flex-shrink: 0; white-space: nowrap;
}
.pipeline-step:hover {
  border-color: var(--accent-light); color: var(--text);
}
.pipeline-step.active {
  background: var(--accent); color: var(--text-on-accent);
  border-color: var(--accent);
}
/* 模板 Level 指示器（pipeline bar 右侧）— 已废弃，保留以防引用 */
.pipeline-step.active .pipeline-id { color: inherit; opacity: 0.7; }
.pipeline-step .pipeline-label { font-size: 0.75rem; }
.pipeline-step .pipeline-id {
  font-size: 0.6rem; color: inherit; opacity: 0.5;
  font-family: var(--mono);
}
.pipeline-arrow {
  color: var(--text-muted); font-size: 0.75rem;
  margin: 0 0.15rem; flex-shrink: 0;
}

/* — Split View（左右分栏写作区） — */
.split-view {
  display: grid;
  grid-template-columns: 1fr 8px 1fr 8px 1fr;
  flex: 1;
  min-height: 300px;
  overflow: hidden;
}
.split-left {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}
.split-mid  { overflow-y: auto; display: flex; flex-direction: column; background: var(--bg); }
.split-divider {
  position: relative; cursor: col-resize;
  margin: 120px 0;
}
.split-divider::after {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 1px;
  background: repeating-linear-gradient(to bottom, var(--border) 0, var(--border) 4px, transparent 4px, transparent 8px);
}
.split-divider:hover::after, .split-divider.active::after {
  background: repeating-linear-gradient(to bottom, var(--ui-knob) 0, var(--ui-knob) 4px, transparent 4px, transparent 8px);
}
.split-right { overflow-y: auto; display: flex; flex-direction: column; background: var(--bg); }
.left-panel-empty { text-align: center; padding: 3rem 1rem; color: var(--text-muted); font-size: 0.85rem; }

/* — 左栏垂直分割 — */
.left-upper {
  overflow-y: auto;
  padding: 1rem 1.5rem;
}
.left-lower {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.left-hdivider {
  height: 8px;
  cursor: row-resize;
  flex-shrink: 0;
  position: relative;
  margin: 60px 0;
}
.left-hdivider::after {
  content: ''; position: absolute; top: 50%; left: 10%; right: 10%;
  height: 1px;
  background: repeating-linear-gradient(to right, var(--border) 0, var(--border) 4px, transparent 4px, transparent 8px);
}
.left-hdivider:hover::after, .left-hdivider.active::after {
  background: repeating-linear-gradient(to right, var(--ui-knob) 0, var(--ui-knob) 4px, transparent 4px, transparent 8px);
}
.bible-rendered { font-size: 0.8rem; line-height: 1.6; color: var(--text-dim); }

/* — Card List — */
.card-list { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.card-item { display: flex; flex-direction: column; gap: 0.25rem; width: 155px; min-height: 78px; padding: 0.5rem 0.6rem; font-size: 0.78rem; cursor: pointer; transition: background 0.1s, border-color 0.1s, box-shadow 0.15s; border: 1px solid var(--card-border); border-radius: 8px; background: var(--card-bg); overflow: hidden; }
.card-item:hover { background: var(--card-bg-hover); border-color: var(--card-border-hover); transform: translateY(-1px); box-shadow: var(--card-shadow-hover); }
.card-item.active { background: var(--card-bg-active); border-color: var(--card-border-active); box-shadow: var(--card-shadow-active); }
.card-item-name { font-weight: 600; color: var(--text); line-height: 1.3; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-item-meta { font-size: 0.65rem; color: var(--text-muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-status { font-size: 0.62rem; color: var(--cyan); flex-shrink: 0; }
.card-item.dragging { opacity: 0.4; }
.card-item.drag-over { border-color: var(--cyan); border-style: dashed; background: rgba(var(--cyan-rgb), 0.05); }

.chapter-filters { display: flex; gap: 0.3rem; padding: 0.3rem 0; }
.chapter-filter-btn { padding: 0.15rem 0.45rem; border-radius: 10px; border: 1px solid var(--border); background: transparent; color: var(--text-dim); font-size: 0.65rem; cursor: pointer; transition: all 0.15s; }
.chapter-filter-btn:hover { border-color: var(--cyan); color: var(--text); }
.chapter-filter-btn.active { background: rgba(var(--cyan-rgb), 0.12); border-color: var(--cyan); color: var(--cyan); }

/* — Editor — */

/* — Slot Editor — */
.slot-editor {
  display: none;
}
.slot-groups { padding: 0.5rem 0; }

/* 多 group 卡片（仅 M4 伏笔条目等） */
.slot-group {
  margin: 0 1rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
}
.slot-group-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.4rem 0.75rem;
  background: rgba(var(--accent-rgb), 0.06);
  border-bottom: 1px solid var(--border);
}
.slot-group-title {
  font-size: 0.82rem; font-weight: 600; color: var(--cyan);
}
.slot-group-actions { display: flex; gap: 0.25rem; }
.slot-group-delete {
  width: 24px; height: 24px; border-radius: 50%;
  border: 1px solid var(--border); background: transparent;
  color: var(--text-muted); font-size: 0.9rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.slot-group-delete:hover { border-color: var(--error); color: var(--error); background: rgba(239,68,68,0.1); }
.slot-group-add {
  padding: 0.35rem 1rem; margin: 0 1rem 0.5rem;
  border: 1px dashed var(--border); border-radius: var(--radius);
  background: transparent; color: var(--text-muted);
  font-size: 0.75rem; cursor: pointer; transition: all 0.15s;
  display: block; width: calc(100% - 2rem); text-align: center;
}
.slot-group-add:hover {
  border-color: var(--cyan); color: var(--cyan);
  background: rgba(var(--cyan-rgb), 0.05);
}
.slot-group-body { padding: 0.5rem 0.75rem; }

/* 单 group 槽位（M1/M2/M3）— 无卡片包裹 */
.slot-item {
  margin: 0 1rem 0.6rem;
}
.slot-item:last-child { margin-bottom: 0; }
/* 模板 level 分级：section / slot 按 level 隐藏，父 section 隐藏 → 子自动不显示 */
/* 可折叠 section — 点击 h2 标题收起/展开 (仅一级目录) */
.slot-framework h2 {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--accent-light);
  transition: background 0.15s, color 0.15s;
}
.slot-framework h2:hover {
  background: var(--accent);
  color: var(--text-on-accent);
}
.slot-framework-collapse-icon {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
  min-width: 14px;
  text-align: center;
  opacity: 0.5;
  transition: opacity 0.15s;
}
.slot-framework h2:hover .slot-framework-collapse-icon { opacity: 1; }
.slot-section-collapsed .slot-item,
.slot-section-collapsed .slot-group-card { display: none; }

/* deprecated level toggle — kept for backward compat */
.slot-section.slot-hidden,
.slot-item.slot-hidden { display: none; }

/* Slot preview — Markdown 渲染显示，点击切编辑 */
.slot-preview {
  min-height: 2.5rem;
  padding: 0.4rem 0.6rem;
  font-size: var(--md-font-size); line-height: var(--md-line-height);
  border: 1px solid transparent; border-radius: 6px;
  transition: background 0.2s, border-color 0.2s;
  cursor: text;
}
.slot-preview:hover { border-color: var(--border); }
.slot-preview-empty { display: block; min-height: 2rem; }
.slot-preview h1, .slot-preview h2, .slot-preview h3 { margin: var(--md-heading-margin); }
.slot-preview p { margin: var(--md-p-margin); }
.slot-preview ul, .slot-preview ol { margin: var(--md-list-margin); padding-left: var(--md-list-padding); }
.slot-preview code { background: var(--md-code-bg); padding: var(--md-code-padding); border-radius: var(--md-code-radius); font-size: var(--md-code-font-size); }
.slot-preview pre { background: var(--md-pre-bg); padding: var(--md-pre-padding); border-radius: var(--md-pre-radius); overflow-x: auto; }
.slot-preview pre code { background: none; padding: 0; }

.slot-textarea {
  width: 100%; field-sizing: content;
  min-height: 2.5rem; resize: none;
  background: transparent; color: var(--text);
  border: 1px solid transparent; border-radius: 6px;
  padding: 0.4rem 0.6rem; font-size: 0.82rem; line-height: 1.6;
  font-family: var(--font); box-sizing: border-box;
  transition: background 0.2s, border-color 0.2s;
}
.slot-textarea:hover {
  border-color: var(--border);
}
.slot-textarea:focus {
  background: #050508; border-color: var(--accent-light); outline: none;
}
.slot-textarea::placeholder {
  color: var(--text-muted); font-style: italic; font-size: 0.78rem;
}

/* — Framework rendered blocks — */
.slot-framework {
  padding: 0 1rem;
  font-size: 0.8rem; line-height: 1.5; color: var(--text-dim);
}
.slot-framework h1 {
  font-size: 0.95rem; color: var(--text);
  margin: 0.5rem 0 0.3rem;
  padding: 0.35rem 0.75rem;
  background: rgba(var(--accent-rgb), 0.06);
  border-radius: 4px;
}
.slot-framework h2 {
  font-size: 0.85rem; color: var(--accent-light);
  margin: 0.4rem 0 0.2rem;
  padding: 0.2rem 0.75rem;
  background: rgba(var(--accent-rgb), 0.03);
  border-radius: 4px;
}
.slot-framework h3 {
  font-size: 0.8rem; color: var(--cyan);
  margin: 0.3rem 0 0.15rem;
}
.slot-framework blockquote {
  border-left: 2px solid var(--border); padding: 0.15rem 0.5rem;
  margin: 0.2rem 0; color: var(--text-muted); font-size: 0.75rem;
}
.slot-framework p { margin: 0.2rem 0; }
.slot-framework strong { color: var(--text); font-weight: 600; }
.slot-framework hr {
  border: none; border-top: 1px dashed var(--border);
  margin: 0.6rem 0;
}

/* — Free Zone（中栏独立面板） — */
.slot-free-zone {
  padding: 0.5rem 1rem;
  flex: 1; display: flex; flex-direction: column;
}
.slot-free-label {
  font-size: 0.82rem; font-weight: 600; color: var(--accent-light);
  margin-bottom: 0.3rem;
}
.slot-free-hint { font-weight: 400; font-size: 0.7rem; color: var(--text-muted); }
.slot-free-zone textarea {
  width: 100%; flex: 1; resize: none;
  min-height: 6rem;
  overflow-y: auto;
  background: transparent; color: var(--text);
  border: 1px solid transparent; border-radius: 6px;
  padding: 0.5rem 0.75rem; font-size: 0.82rem; line-height: 1.6;
  font-family: var(--font); box-sizing: border-box;
  scrollbar-width: thin; scrollbar-color: transparent transparent;
}
.slot-free-zone textarea:hover,
.slot-free-zone textarea:focus { scrollbar-color: var(--text-muted) transparent; }
.slot-free-zone textarea::-webkit-scrollbar { width: 4px; }
.slot-free-zone textarea::-webkit-scrollbar-thumb { background: transparent; border-radius: 2px; }
.slot-free-zone textarea:hover::-webkit-scrollbar-thumb,
.slot-free-zone textarea:focus::-webkit-scrollbar-thumb { background: var(--text-muted); }
.slot-free-zone textarea:hover { border-color: var(--border); }
.slot-free-zone textarea:focus {
  background: #050508; border-color: var(--cyan); outline: none;
}

/* — Writing Editor (M0 / M6 自由文本) — */
.writing-editor {
  width: 100%; display: none; background: var(--bg); color: var(--text);
  border: none; padding: 1.5rem; font-family: var(--font); font-size: 0.95rem;
  line-height: 1.9; resize: none; outline: none;
  box-sizing: border-box; min-height: 20rem;
  overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: transparent transparent;
}
.writing-editor:hover,
.writing-editor:focus { scrollbar-color: var(--text-muted) transparent; }
.writing-editor::-webkit-scrollbar { width: 4px; }
.writing-editor::-webkit-scrollbar-thumb { background: transparent; border-radius: 2px; }
.writing-editor:hover::-webkit-scrollbar-thumb,
.writing-editor:focus::-webkit-scrollbar-thumb { background: var(--text-muted); }

/* — Form Editor (M5) — */
.form-editor {
  flex: 1; overflow-y: auto; padding: 1rem;
}
.form-field { margin-bottom: 0.75rem; }
.form-field-label {
  font-size: 0.75rem; font-weight: 600; color: var(--text-dim);
  margin-bottom: 0.2rem;
}
.form-field-input, .form-field-textarea {
  width: 100%; padding: 0.4rem 0.6rem;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 0.82rem; font-family: var(--font);
  box-sizing: border-box; transition: border-color 0.15s;
}
.form-field-input:focus, .form-field-textarea:focus { border-color: var(--accent-light); outline: none; }
.form-field-textarea { field-sizing: content; min-height: 3rem; max-height: 9rem; overflow-y: auto; resize: none; line-height: 1.5; }
.form-field-hint {
  font-size: 0.65rem; color: var(--text-muted);
  margin-top: 0.15rem; font-style: italic;
}

/* — Bible Content Rendering — */
.bible-content { font-size: 0.78rem; line-height: 1.5; }
.bible-h1 {
  font-size: 1rem; color: var(--cyan); margin: 0.5rem 0 0.3rem;
  border-bottom: 1px solid var(--border); padding-bottom: 0.15rem;
}
.bible-h2 {
  font-size: 0.88rem; color: var(--text); margin: 0.4rem 0 0.2rem;
}
.bible-h3 {
  font-size: 0.8rem; color: var(--text-dim); margin: 0.25rem 0 0.15rem;
  padding-left: 0.5rem;
}
.bible-comment {
  display: block; font-size: 0.7rem; color: var(--text-muted);
  font-style: italic; padding: 0.15rem 0.5rem; margin: 0.1rem 0;
  border-left: 2px solid var(--border);
}
.bible-quote {
  font-size: 0.75rem; color: var(--text-dim);
  border-left: 3px solid var(--cyan); padding: 0.2rem 0.5rem;
  margin: 0.3rem 0;
}
.bible-checklist {
  font-size: 0.75rem; color: var(--text-dim);
  padding: 0.1rem 0.5rem;
}
.bible-checklist input { margin-right: 0.3rem; }
.template-notice {
  font-size: 0.72rem; color: var(--accent-light);
  background: rgba(var(--accent-rgb), 0.08);
  padding: 0.4rem 0.6rem; border-radius: 6px;
  margin-bottom: 0.5rem; border: 1px dashed rgba(var(--accent-rgb), 0.3);
}
/* ============================================================
   三层覆盖式布局（v3.3）
   Layer 0: 主编辑画布 — 全宽固定
   Layer 1: AI Chat 左 Drawer — 覆盖主画布
   Layer 2: 知识库右 Drawer — 覆盖 AI Chat
   ============================================================ */

/* — Layer 0: 主编辑画布 — */
/* 左右 padding 15vw → 内容区正好 70vw，与 Drawer 参照系一致 */
.main-canvas {
  position: relative;
  z-index: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  overflow: hidden;
  background: var(--bg);
  padding: 16px 10vw;
}

/* — Layer 1: AI Chat 左侧 Drawer — */
/* 面板滑入/滑出；头像 absolute 固定左下角始终可见 */
.ai-drawer {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 10;
  pointer-events: none;
}

.ai-drawer-panel {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: min(70vw, 800px);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(-100%);
  transition: transform 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.ai-drawer.open .ai-drawer-panel {
  transform: translateX(0);
  pointer-events: all;
}

/* 头像 — 绝对定位左下角，始终可见 */
.ai-drawer-toggle {
  position: absolute;
  bottom: 16px; left: 8px;
  width: var(--elf-input-height); height: var(--elf-input-height);
  border-radius: 12px;
  border: none;
  background: transparent;
  padding: 0;
  cursor: pointer;
  pointer-events: all;
  overflow: hidden;
  z-index: 11;
  transition: transform 0.2s, opacity 0.2s;
}
.ai-drawer-toggle:hover { transform: scale(1.08); }

.ai-drawer-toggle-img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transform: scaleX(-1);
}

/* 面板收起按钮 — 浮动在面板右上角，与 KB Drawer 关闭按钮同款
   仅面板展开时可见；面板滑出时跟随隐藏 */
.ai-drawer-close {
  position: absolute;
  top: 10px;
  left: calc(min(70vw, 800px) - 42px);  /* 面板右边缘 - 按钮宽 - 间距 */
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-dim); font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  z-index: 12;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, border-color 0.15s, color 0.15s;
}
.ai-drawer.open .ai-drawer-close {
  opacity: 1; pointer-events: all;
}
.ai-drawer-close:hover {
  border-color: var(--error); color: var(--error);
}

/* — Layer 2: 知识库标签栏（右边缘浮动标签） — */
.kb-tab-bar {
  position: fixed;
  right: 0; top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 5px;
  align-items: flex-end;
  pointer-events: none;
}

.kb-tab-badge {
  width: 76px;
  padding: 7px 9px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 8px 0 0 8px;
  font-size: 0.7rem;
  line-height: 1.35;
  color: var(--text-dim);
  cursor: pointer;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
  text-align: center;
  transition: all 0.15s;
  user-select: none;
  pointer-events: all;
}
.kb-tab-badge:hover {
  background: rgba(var(--accent-rgb), 0.12);
  border-color: var(--accent-light);
  color: var(--text);
}
.kb-tab-badge.active {
  background: rgba(var(--accent-rgb), 0.15);
  border-color: var(--accent);
  color: var(--accent-light);
}

/* — Layer 2: 二级标签栏（浮动在一级标签左侧） — */
.kb-l2-tab-bar {
  position: fixed;
  right: 0; top: 50%;
  transform: translateY(-50%);
  z-index: 20;
  display: none;
  flex-direction: column;
  gap: 5px;
  align-items: flex-end;
  pointer-events: none;
}

.kb-l2-tab-badge {
  width: 66px;
  padding: 5px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 6px 0 0 6px;
  font-size: 0.68rem;
  line-height: 1.35;
  color: var(--text-dim);
  cursor: pointer;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
  text-align: center;
  transition: all 0.15s;
  user-select: none;
  pointer-events: all;
}
.kb-l2-tab-badge:hover {
  background: rgba(var(--cyan-rgb), 0.12);
  border-color: var(--cyan);
  color: var(--text);
}
.kb-l2-tab-badge.active {
  background: rgba(var(--cyan-rgb), 0.15);
  border-color: var(--cyan);
  color: var(--cyan);
}

/* — Layer 2: 内容 Drawer（70% 宽，右侧滑出） — */
.kb-content-drawer {
  position: fixed;
  right: 0; top: 0; bottom: 0;
  width: min(70vw, 900px);
  z-index: 22;
  background: var(--bg);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 24px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.kb-content-drawer.open {
  transform: translateX(0);
}

.kb-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg-card);
}
.kb-drawer-title {
  font-size: 0.88rem; font-weight: 600; color: var(--text);
}
.kb-drawer-close {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-dim); font-size: 1.1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s; flex-shrink: 0;
}
.kb-drawer-close:hover {
  border-color: var(--error); color: var(--error);
}

.kb-drawer-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
}
.kb-drawer-content .slot-editor { display: block; }
.kb-drawer-content .slot-groups { padding: 0; }
.kb-drawer-content .slot-item { margin: 0; }
.kb-drawer-content .slot-framework { padding: 0; }

/* Drawer 内 preview: 无边框无圆角，融入背景 */
.kb-drawer-content .slot-preview {
  border: none;
  border-radius: 0;
  padding: 0;
  min-height: auto;
  cursor: default;
}
.kb-drawer-content .slot-preview:hover { border: none; }

/* Drawer 内 textarea: 无边框，微妙背景色区分 */
.kb-drawer-content .slot-textarea {
  border: none;
  border-radius: 0;
  padding: 0.5rem 0;
  background: transparent;
  min-height: 6rem;
}
.kb-drawer-content .slot-textarea:hover { border: none; }
.kb-drawer-content .slot-textarea:focus {
  border: none;
  outline: none;
  background: #0d0d15;
}

/* 卡片列表视图（Drawer 内） */
.kb-card-list-view {
  display: none;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.5rem 0;
}

/* 主编辑画布内的编辑器 — 填满父容器（宽度由 main-canvas padding 统一控制） */
.main-canvas .writing-editor {
  display: block;
  width: 100%;
  flex: 1;
  background: var(--text-input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  font-size: 0.95rem;
  line-height: 1.9;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
.main-canvas .writing-editor:hover {
  border-color: var(--text-muted);
}
.main-canvas .writing-editor:focus {
  border-color: var(--accent-light);
  outline: none;
}
.main-canvas .writing-editor::placeholder {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* 自由编辑区 */
.main-canvas .slot-free-zone {
  width: 100%;
  padding: 0;
  flex: 1; display: flex; flex-direction: column;
}
.main-canvas .slot-free-zone .slot-free-label {
  display: none;  /* 用 textarea placeholder 代替 */
}
.main-canvas .slot-free-zone textarea {
  flex: 1;
  background: var(--text-input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  font-size: 0.95rem;
  line-height: 1.9;
  box-sizing: border-box;
  transition: border-color 0.2s;
}
.main-canvas .slot-free-zone textarea:hover {
  border-color: var(--text-muted);
}
.main-canvas .slot-free-zone textarea:focus {
  border-color: var(--accent-light);
  outline: none;
}
.main-canvas .slot-free-zone textarea::placeholder {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* — Responsive — */
@media (max-width: 640px) {
  .hero h1 { font-size: 1.6rem; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .work-card { flex-direction: column; }
  .work-cover { width: 100%; height: 120px; border-radius: var(--radius); }
  .container, .container-narrow { padding: 0 1rem; }
  .top-nav .container { flex-direction: column; gap: 0.5rem; }
  .read-content { padding: 1.5rem 0 1rem; }
  .chapter-nav { flex-direction: column; gap: 0.5rem; }
  .chapter-nav .btn { width: 100%; text-align: center; }
}