.header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 0 16px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 18px;
  position: sticky;
  top: 0;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  z-index: 10;
}
.header .logo {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
  flex: 1;
}
.header .back {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text2);
  width: 34px; height: 34px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  flex-shrink: 0;
}
.header .back:hover { border-color: var(--accent); color: var(--text); }
.header .back:active { transform: scale(.9); transition: transform .08s ease; background: var(--card2); }
.header .icon-btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text2);
  width: 34px; height: 34px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  flex-shrink: 0;
}
.header .icon-btn:hover { border-color: var(--accent); color: var(--text); }
.header .icon-btn:active { transform: scale(.9); transition: transform .08s ease; background: var(--card2); }
.model-switch {
  display: flex;
  gap: 0;
  background: var(--card);
  border-radius: 20px;
  padding: 3px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.model-switch button {
  border: none;
  background: transparent;
  color: var(--text3);
  padding: 5px 14px;
  border-radius: 18px;
  font-size: 12px;
  cursor: pointer;
  transition: all .25s;
  font-weight: 600;
}
.model-switch button.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(240,124,60,.35);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 22px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  cursor: pointer;
  font-weight: 600;
  transition: all .2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}
.btn:active { transform: scale(.95); transition: transform .06s ease; }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #e06a30);
  color: #fff;
  width: 100%;
  box-shadow: 0 4px 16px rgba(240,130,74,.25);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(240,130,74,.35); }
.btn-primary:active { transform: scale(.96); transition: transform .06s ease; box-shadow: 0 2px 8px rgba(240,124,60,.2); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; animation: none; }
.btn-glow {
  animation: btnGlowPulse 2.5s ease infinite;
}
@keyframes btnGlowPulse {
  0%,100% { box-shadow: 0 4px 16px rgba(240,130,74,.25); }
  50% { box-shadow: 0 4px 24px rgba(240,124,60,.45), 0 0 0 4px rgba(240,124,60,.08); }
}
.btn-secondary {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); background: var(--card2); }
.btn-secondary:active { transform: scale(.96); transition: transform .06s ease; }
.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  padding: 4px 12px;
  font-size: 12px;
  border-radius: 6px;
}
.btn-sm { padding: 8px 16px; font-size: 13px; }
.card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 40px rgba(0,0,0,.5), 0 2px 8px rgba(0,0,0,.3); }
.card::after { content: ""; position: absolute; inset: 0; opacity: 0; transition: opacity .3s; background: linear-gradient(135deg, var(--accent-glow), transparent 60%); pointer-events: none; }
.card:hover::after { opacity: 1; }
.card:active { transform: scale(.97); transition: transform .08s ease; }
.card {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.card h3 { font-size: 17px; font-weight: 600; margin-bottom: 6px; }
.card .meta { font-size: 13px; color: var(--text2); line-height: 1.5; }
.card .tag {
  display: inline-block;
  background: rgba(240,124,60,.12);
  color: var(--accent);
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  margin-top: 8px;
}
.card .progress-bar {
  height: 4px;
  background: var(--bg2);
  border-radius: 2px;
  margin-top: 10px;
  overflow: hidden;
}
.card .progress-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  transition: width .6s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.card .progress-bar .fill::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 20px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.3));
  border-radius: 0 2px 2px 0;
}
.empty {
  text-align: center;
  padding: 70px 20px 40px;
  color: var(--text2);
}
.empty .icon {
  font-size: 56px;
  margin-bottom: 14px;
  opacity: .6;
  animation: floatIcon 3.5s ease-in-out infinite;
  display: inline-block;
}
.empty p { font-size: 14px; }
@keyframes floatIcon { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.chapter-item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.chapter-item .ch-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--text3);
  flex-shrink: 0;
}
.chapter-item .info { flex: 1; min-width: 0; }
.chapter-item .info .ch-title {
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chapter-item .info .ch-meta {
  font-size: 12px;
  color: var(--text3);
  margin-top: 2px;
}
.chapter-item .actions { display: flex; gap: 4px; flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end; }
.writing-container { flex: 1; display: flex; flex-direction: column; padding-bottom: 0; }
.paper {
  flex: 1;
  overflow-y: auto;
  position: relative;
}

.paper .chapter-content { word-wrap: break-word; animation: fadeSlideIn .35s ease; }
@keyframes fadeSlideIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.paper .chapter-content p { text-indent: 2em; margin-bottom: 0.8em; line-height: 2; }
.paper .chapter-content .empty-hint {
  color: var(--text3);
  text-align: center;
  padding: 40px 20px;
  font-size: 14px;
  line-height: 2;
}
.paper .chapter-content .empty-hint .big { font-size: 28px; display: block; margin-bottom: 10px; animation: floatIcon 3.5s ease-in-out infinite; }
.paper .loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 30px 0;
  color: var(--text2);
  font-size: 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.spinner, .paper .loading-overlay .spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  display: inline-block;
}
.input-section { flex-shrink: 0; padding-bottom: 12px; }
.input-section .input-row { display: flex; gap: 10px; }
.input-section .input-row textarea {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 12px 16px;
  font-size: 15px;
  resize: none;
  min-height: 48px;
  max-height: 200px;
  font-family: inherit;
  line-height: 1.6;
  transition: border-color .2s;
}
.input-section .input-row textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(240,130,74,.06); }
.input-section .input-row .send-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), #e06a30);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 3px 12px rgba(240,124,60,.3);
  transition: all .2s;
}
.input-section .input-row .send-btn:active { transform: scale(.88); transition: transform .06s ease; }
.input-section .input-row .send-btn:disabled { opacity: .4; cursor: not-allowed; }
.input-section .input-row .stop-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  border: 2px solid var(--danger);
  background: rgba(240,80,106,.15);
  color: var(--danger);
  font-size: 18px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  animation: pulseStop 1.5s ease infinite;
}
@keyframes pulseStop { 0%,100% { box-shadow: 0 0 0 0 rgba(240,80,106,.3); } 50% { box-shadow: 0 0 0 8px rgba(240,80,106,0); } }
.input-section .input-row .stop-btn:hover { background: rgba(240,80,106,.3); }
@keyframes blinkCursor { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.ai-cursor::after { content: '▍'; animation: blinkCursor .9s step-end infinite; color: inherit; }
.setting-group { border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 10px; overflow: hidden; }
.setting-group .group-header { display: flex; align-items: center; gap: 8px; padding: 10px 14px; cursor: pointer; font-size: 13px; font-weight: 600; color: var(--text); background: var(--bg2); transition: background .2s; user-select: none; }
.setting-group .group-header:hover { background: var(--card2); }
.setting-group .group-header .toggle-icon { font-size: 11px; color: var(--text3); transition: transform .2s; }
.setting-group .group-header.open .toggle-icon { transform: rotate(90deg); }
.setting-group .group-body { padding: 12px 14px 4px; display: none; }
.setting-group .group-body.open { display: block; }
.input-section .input-hint { font-size: 12px; color: var(--text3); text-align: right; padding: 6px 4px 0; }
.input-section .quick-actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.input-section .quick-actions .qa-btn {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 5px 12px;
  border-radius: 16px;
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
}
.input-section .quick-actions .qa-btn:hover { border-color: var(--accent); color: var(--text); }
.input-section .quick-actions .qa-btn:active { transform: scale(.93); transition: transform .06s ease; background: var(--card2); }
.qa-toggle-row { display: flex; align-items: center; gap: 4px; margin-top: 8px; }
.qa-toggle-row .qa-toggle-btn {
  background: transparent; border: 1px dashed var(--border); color: var(--text3);
  padding: 4px 12px; border-radius: 14px; font-size: 11px; cursor: pointer;
  transition: all .2s; display: flex; align-items: center; gap: 4px;
}
.qa-toggle-row .qa-toggle-btn:hover { border-color: var(--accent); color: var(--accent); }
.qa-toggle-row .qa-toggle-btn.open { border-style: solid; border-color: var(--accent); color: var(--accent); }
.quick-actions.expanded { display: flex !important; }
.paper-transition { transition: opacity .15s ease; }
.paper-loading { opacity: 0.5; }
.empty-prompts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; justify-content: center; }
.empty-prompts .ep-chip {
  background: var(--card); border: 1px solid var(--border); color: var(--text2);
  padding: 6px 14px; border-radius: 16px; font-size: 12px; cursor: pointer;
  transition: all .2s;
}
.empty-prompts .ep-chip:hover { border-color: var(--accent); color: var(--accent); }
.empty-prompts .ep-chip:active { transform: scale(.93); transition: transform .06s ease; }
/* 自动保存指示器 */
.auto-save-indicator {
  position: fixed; bottom: 80px; right: 16px; background: var(--card); color: var(--text3);
  padding: 6px 12px; border-radius: 16px; font-size: 11px; border: 1px solid var(--border);
  opacity: 0; transform: translateY(10px); transition: all .3s ease;
  pointer-events: none; z-index: 10;
}
.auto-save-indicator.show { opacity: 1; transform: translateY(0); }
.model-badge {
  display: inline-block;
  font-size: 10px;
  padding: 2px 10px;
  border-radius: 10px;
  font-weight: 700;
  margin-bottom: 4px;
}
.model-badge.flash { background: rgba(240,124,60,.15); color: var(--accent); }
.model-badge.pro { background: rgba(240,168,64,.15); color: var(--accent3); }
.wordcount-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 10px;
}
.wordcount-bar .bar-track {
  flex: 1;
  height: 3px;
  background: var(--bg2);
  border-radius: 2px;
  overflow: hidden;
}
.wordcount-bar .bar-track .bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 2px;
  transition: width .5s ease;
}
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
  animation: overlayIn .25s ease;
}
.modal-overlay.active { display: flex; }
.modal-overlay.closing { animation: overlayOut .2s ease forwards; }
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes overlayOut { from { opacity: 1; } to { opacity: 0; } }
.modal {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 28px 24px;
  width: 100%;
  max-width: 440px;
  max-height: 85vh;
  overflow-y: auto;
  animation: modalIn .3s cubic-bezier(.4,0,.2,1);
  box-shadow: var(--shadow);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
}
@keyframes modalIn { 0% { opacity: 0; transform: scale(.9) translateY(28px); } 55% { opacity: 1; transform: scale(1.02) translateY(-3px); } 100% { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes modalOut { 0% { opacity: 1; transform: scale(1) translateY(0); } 100% { opacity: 0; transform: scale(.92) translateY(16px); } }
.modal.closing { animation: modalOut .2s ease forwards; }
.modal h2 { font-size: 19px; font-weight: 700; margin-bottom: 18px; }
.modal label { display: block; font-size: 13px; color: var(--text2); margin-bottom: 6px; font-weight: 500; }
.modal input, .modal select, .modal textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  margin-bottom: 14px;
  font-family: inherit;
  transition: border-color .2s;
}
.modal input:focus, .modal select:focus, .modal textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.modal textarea { resize: vertical; min-height: 80px; }
.modal .btn-group { display: flex; gap: 10px; margin-top: 4px; }
.modal .btn-group .btn { flex: 1; }
.style-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.style-tags .tag-btn {
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--text2);
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
}
.style-tags .tag-btn.selected {
  border-color: var(--accent);
  background: rgba(240,124,60,.12);
  color: var(--accent);
  font-weight: 600;
}
.style-tags .tag-btn:active { transform: scale(.93); transition: transform .06s ease; }
/* 大纲聊天 */
#outlineChatHistory .spinner { width: 16px; height: 16px; border-width: 2px; flex-shrink: 0; }
#outlineChatInput { transition: height .1s ease; }
.chat-thread-bar { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.chat-thread-bar select { flex: 1; min-width: 0; background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; color: var(--text); padding: 6px 8px; font-size: 12px; font-family: inherit; }
.chat-thread-bar .btn-sm { padding: 5px 10px; font-size: 11px; flex-shrink: 0; }
.chat-msg-time { font-size: 10px; color: var(--text3); margin-left: 8px; }
.chat-thread-title { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; display: inline-block; vertical-align: bottom; }
.confirm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: overlayIn .25s ease;
}
.confirm-overlay.active { display: flex; }
.confirm-overlay.closing { animation: overlayOut .2s ease forwards; }
.confirm-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  width: 100%;
  max-width: 340px;
  text-align: center;
  animation: modalIn .35s cubic-bezier(.22,.61,.36,1);
}
.confirm-box p { margin-bottom: 20px; font-size: 15px; line-height: 1.6; }
.confirm-box .btn-group { display: flex; gap: 10px; }
.confirm-box .btn-group .btn { flex: 1; }
.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 10px 22px;
  font-size: 13px;
  font-weight: 500;
  z-index: 300;
  display: none;
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  white-space: nowrap;
  letter-spacing: 0.2px;
}
.toast-item { animation: toastBounce .4s cubic-bezier(.22,.61,.36,1); }@keyframes toastBounce { 0% { opacity: 0; transform: translateX(-50%) translateY(20px) scale(.9); } 60% { opacity: 1; transform: translateX(-50%) translateY(-4px) scale(1.02); } 100% { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); } }
@keyframes toastOut { from { opacity: 1; transform: translateX(-50%) translateY(0) scale(1); } to { opacity: 0; transform: translateX(-50%) translateY(-12px) scale(.9); } }
.prompt-editor { margin-bottom: 12px; }
.prompt-editor textarea {
  width: 100%;
  min-height: 200px;
  font-size: 13px;
  font-family: "SF Mono", "Fira Code", monospace;
  line-height: 1.6;
  padding: 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  resize: vertical;
}
.prompt-editor textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.prompt-editor .prompt-info { font-size: 12px; color: var(--text3); margin-bottom: 8px; line-height: 1.5; }
.prompt-editor .prompt-vars { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.prompt-editor .prompt-vars .var-tag {
  background: rgba(240,124,60,.1);
  color: var(--accent);
  padding: 2px 10px;
  border-radius: 8px;
  font-size: 11px;
  font-family: monospace;
}
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
@media (min-width: 768px) {
  .page { max-width: 900px; padding: 0 24px 24px; }
  .reader-content { padding: 40px 64px !important; }
  .reader-content p { font-size: 18px; }
  .reader-header, .reader-footer { padding: 16px 64px; }
  .reader-menu { max-width: 500px; left: 50%; transform: translateX(-50%); }
  .online-search-card:hover { transform: translateX(5px); }
  .modal { padding: 28px 24px; }
}
@media (min-width: 1200px) {
  .page { max-width: 1100px; }
  .reader-content { padding: 40px 120px !important; }
  .shelf-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}
@media (max-width: 480px) {
  .page { padding: 0 12px 12px; }
  .paper { padding: 18px 14px; font-size: 14px; }
  .modal { padding: 22px 18px; }
  .header { padding: 10px 0 14px; }
  .chapter-item .actions { flex: 0 0 100%; justify-content: flex-start; }
  .chapter-item .actions .btn-sm { padding: 4px 8px; font-size: 11px; }
}
/* ===== 底部导航栏 ===== */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border-top: 1px solid var(--glass-border);
  padding: 6px 0 env(safe-area-inset-bottom, 8px);
  z-index: 50;
  height: 60px;
}
.bottom-nav .nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  border: none;
  background: none;
  color: var(--text3);
  font-size: 10px;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 16px 8px;
  border-radius: 14px;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  font-family: inherit;
  min-width: 60px;
  position: relative;
}
.bottom-nav .nav-item::after {
  content: '';
  position: absolute;
  bottom: 0;
  width: 20px; height: 3px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .25s cubic-bezier(.4,0,.2,1);
}
.bottom-nav .nav-item .nav-icon { font-size: 22px; transition: transform .25s cubic-bezier(.4,0,.2,1); }
.bottom-nav .nav-item.active { color: var(--accent); font-weight: 700; }
.bottom-nav .nav-item.active .nav-icon { transform: scale(1.1) translateY(-2px); }
.bottom-nav .nav-item.active::after { transform: scaleX(1); }
.bottom-nav .nav-item:active { background: rgba(240,124,60,.1); }
/* ripple */
@keyframes ripple { to { transform: scale(4); opacity: 0; } }
.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(240,124,60,.2);
  width: 40px; height: 40px;
  animation: ripple .6s linear;
  pointer-events: none;
}
/* ===== 书架双Tab ===== */
.shelf-tabs {
  display: flex;
  gap: 0;
  background: var(--card);
  border-radius: 14px;
  padding: 4px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
}
.shelf-tabs button {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text2);
  padding: 10px 8px;
  border-radius: 11px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 600;
  transition: all .25s;
  font-family: inherit;
  letter-spacing: 0.3px;
}
.shelf-tabs button.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 2px 10px rgba(240,124,60,.3);
}
.shelf-tabs button:active { transform: scale(.94); transition: transform .06s ease; }
/* ===== 书架书籍卡片 ===== */
.shelf-card {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 16px;
}
.shelf-cover {
  width: 66px; height: 88px;
  border-radius: 8px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: rgba(255,255,255,.9);
  box-shadow: 0 4px 16px rgba(0,0,0,.35);
  position: relative;
  overflow: hidden;
  text-shadow: 0 1px 3px rgba(0,0,0,.3);
}
.shelf-cover::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(255,255,255,.15) 0%, transparent 40%, rgba(0,0,0,.2) 100%);
  pointer-events: none;
}
.shelf-cover .cover-label {
  font-size: 9px;
  font-weight: 500;
  opacity: .7;
  margin-top: 2px;
}
.shelf-info { flex:1; min-width:0; }
.shelf-info .shelf-title { font-size: 16px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; letter-spacing: 0.3px; }
.shelf-info .shelf-meta { font-size: 12px; color: var(--text3); margin-top: 3px; display: flex; align-items: center; gap: 6px; }
.shelf-info .shelf-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text3); }
.shelf-info .shelf-progress { font-size: 11px; color: var(--accent); margin-top: 4px; font-weight: 500; }
/* ===== 搜索栏 ===== */
.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px 12px;
  margin-bottom: 12px;
  transition: border-color .2s;
}
.search-bar:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.search-bar input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  padding: 8px 0;
  font-family: inherit;
  outline: none;
}
.search-bar .search-icon { color: var(--text3); font-size: 14px; }
.search-bar .search-clear { display:none; background:none; border:none; color:var(--text3); cursor:pointer; font-size:14px; }
/* ===== 更多菜单 ===== */
.more-menu {
  position: absolute;
  right: 14px;
  top: 44px;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 6px;
  z-index: 60;
  display: none;
  box-shadow: var(--shadow);
  min-width: 140px;
}
.more-menu.show { display: block; animation: menuIn .2s cubic-bezier(.22,.61,.36,1); }
@keyframes menuIn { from { opacity: 0; transform: translateY(-8px) scale(.95); } to { opacity: 1; transform: translateY(0) scale(1); } }
.more-menu button {
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background .15s;
}
.more-menu button:hover { background: var(--bg2); }
.more-menu button.danger { color: var(--danger); }
/* ===== 阅读器 ===== */
.reader-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  flex-direction: column;
}
.reader-overlay.active { display: flex; animation: readerIn .3s ease; }
@keyframes readerIn { from { opacity: 0; } to { opacity: 1; } }
.reader-overlay[data-skin="white"] { background: #f5f3ee; }
.reader-overlay[data-skin="white"] .reader-content { color: #2c2416; }
.reader-overlay[data-skin="cream"] { background: #faf3e0; }
.reader-overlay[data-skin="cream"] .reader-content { color: #3d3220; }
.reader-overlay[data-skin="green"] { background: #c8e6c9; }
.reader-overlay[data-skin="green"] .reader-content { color: #1b3b1b; }
.reader-overlay[data-skin="dark"] { background: #0d1117; }
.reader-overlay[data-skin="dark"] .reader-content { color: #c9d1d9; }
.reader-content {
  position: relative;
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  font-size: 17px;
  line-height: 2;
  -webkit-overflow-scrolling: touch;
  color: var(--text);
}
.reader-content p { text-indent: 2em; margin-bottom: 0.8em; letter-spacing: 0.02em; word-spacing: 0.05em; }
/* 点击翻页区域 */
.reader-tap-zone { position: absolute; top: 0; bottom: 0; z-index: 5; }
.reader-tap-zone.left { left: 0; width: 30%; }
.reader-tap-zone.center { left: 30%; width: 40%; }
.reader-tap-zone.right { left: 70%; width: 30%; }
.reader-content .section-break { text-indent: 0; text-align: center; color: var(--text3); letter-spacing: 0.5em; margin: 1.5em 0; font-size: 13px; }
/* 分页模式 */
.reader-content.paged {
  overflow: hidden;
  position: relative;
}
.reader-page {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  padding: 4px 0;
  transition: transform .3s ease;
}
.reader-page-indicator {
  position: fixed;
  bottom: 50px;
  right: 16px;
  font-size: 11px;
  color: inherit;
  opacity: 0.4;
  pointer-events: none;
  z-index: 10;
}
/* TOC 侧边栏 */
.toc-sidebar {
  position: fixed;
  top: 0; right: -85vw; bottom: 0;
  width: 85vw; max-width: 360px;
  background: var(--bg);
  z-index: 210;
  display: flex;
  flex-direction: column;
  transition: right .25s ease;
  box-shadow: -4px 0 20px rgba(0,0,0,.3);
}
.toc-sidebar.open { right: 0; }
.toc-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.toc-sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}
.toc-sidebar-item {
  padding: 10px 16px;
  font-size: 13px;
  cursor: pointer;
  border-left: 3px solid transparent;
  color: var(--text2);
}
.toc-sidebar-item.current {
  border-left-color: var(--accent2);
  color: var(--text);
  font-weight: 600;
  background: var(--bg2);
}
.toc-sidebar-item .toc-wordcount {
  font-size: 11px;
  color: var(--text3);
  margin-left: 8px;
}
/* 书内搜索 */
.inbook-search-bar {
  display: flex;
  gap: 8px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
}
.inbook-search-bar input {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 13px;
}
.inbook-search-results {
  padding: 8px 16px;
  font-size: 12px;
  color: var(--text2);
  border-bottom: 1px solid var(--border);
}
.inbook-search-hit {
  padding: 8px 12px;
  font-size: 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--glass-border);
  color: var(--text2);
}
.inbook-search-hit:hover { background: var(--bg2); }
.inbook-search-hit mark { background: rgba(240,168,64,.3); color: var(--text); }
.reader-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 13px;
  color: inherit;
  opacity: 0.6;
}
.reader-footer {
  text-align: center;
  padding: 8px;
  font-size: 12px;
  opacity: 0.5;
}
.reader-menu {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border-top: 1px solid var(--glass-border);
  border-radius: 20px 20px 0 0;
  padding: 20px 20px env(safe-area-inset-bottom, 16px);
  z-index: 210;
  display: none;
  animation: slideUp .25s ease;
}
.reader-menu.active { display: block; }
@keyframes slideUp { from { transform: translateY(100%); } to { transform: translateY(0); } }
.reader-menu .menu-row {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin-bottom: 16px;
}
.reader-menu .menu-row button {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}
.reader-menu .menu-row button:active { border-color: var(--accent); }
.reader-menu .skin-dots { display: flex; gap: 10px; }
.reader-menu .skin-dot {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .2s;
}
.reader-menu .skin-dot.active { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(240,124,60,.2); }
.reader-menu .menu-btn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 14px; }
.reader-menu .menu-labeled-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 4px; padding: 10px 6px 8px;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font-size: 12px; cursor: pointer; transition: all .15s;
}
.reader-menu .menu-labeled-btn:active { border-color: var(--accent); background: var(--bg2); }
.reader-menu .menu-labeled-btn .mlb-icon { font-size: 20px; line-height: 1; }
.reader-menu .menu-labeled-btn .mlb-text { font-size: 10px; color: var(--text2); }
.reader-menu .skin-dot.white { background: #f5f3ee; }
.reader-menu .skin-dot.cream { background: #faf3e0; }
.reader-menu .skin-dot.green { background: #d5e4cd; }
.reader-menu .skin-dot.dark { background: #1a1f2b; }
.reader-menu .slider-row { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text2); }
.reader-menu .slider-row input { flex: 1; accent-color: var(--accent); }
.reader-menu .toc-list { max-height: 50vh; overflow-y: auto; }
.reader-menu .toc-list .toc-item {
  padding: 12px 14px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 14px;
  cursor: pointer;
  transition: background .15s;
}
.reader-menu .toc-list .toc-item:hover { background: var(--bg2); }
.reader-menu .toc-list .toc-item.current { color: var(--accent); font-weight: 700; }
/* ===== 亮度遮罩 ===== */
.brightness-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0);
  pointer-events: none;
  z-index: 199;
  transition: background .3s;
}
/* ===== 横屏提示 ===== */
.landscape-hint {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: linear-gradient(135deg, var(--accent3), #e89020);
  color: #fff;
  text-align: center;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  z-index: 400;
  display: none;
  animation: slideDown .3s ease;
}
@keyframes slideDown { from { transform: translateY(-100%); } to { transform: translateY(0); } }
/* ===== 专注模式 ===== */
.focus-mode .header,
.focus-mode .input-section,
.focus-mode .wordcount-bar,
.focus-mode #outlineHint,
.focus-mode #summaryBar,
.focus-mode #emergencyStop,
.focus-mode .bottom-nav { display: none !important; }
.focus-mode #paperArea { max-height: 100vh !important; padding: 24px 20px !important; }
.focus-exit-btn {
  position: fixed;
  top: 12px; right: 16px;
  z-index: 350;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  border: 1px solid var(--glass-border);
  color: var(--text2);
  width: 36px; height: 36px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  display: none;
}
.focus-mode .focus-exit-btn { display: flex; align-items:center; justify-content:center; }
/* ===== 角色面板 ===== */
.char-panel { position:fixed;bottom:60px;right:12px;z-index:55;display:none;flex-direction:column;gap:6px; }
.char-panel.show { display: flex; }
.char-panel .char-card {
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 12px;
  max-width: 220px;
  box-shadow: var(--shadow);
  animation: fadeIn .2s ease;
}
.char-panel .char-card .char-name { font-weight:700;font-size:14px;margin-bottom:4px; }
.char-panel .char-card .char-detail { color:var(--text2);line-height:1.5; }
.char-panel .char-toggle {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(240,124,60,.35);
}
/* ===== 写作方向输入 ===== */
.direction-row {
  display: none;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}
.direction-row.show { display: flex; }
.direction-row input {
  flex:1;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 8px 14px;
  font-size: 13px;
  font-family: inherit;
  transition: border-color .2s;
}
.direction-row input:focus { outline:none; border-color: var(--accent2); box-shadow: 0 0 0 3px rgba(245,166,35,.1); }
/* ===== 海报模态 ===== */
.poster-canvas { display:block; margin:0 auto; border-radius:12px; max-width:100%; box-shadow:var(--shadow); }
/* ===== 统计面板 ===== */
.stat-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:14px; }
.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}
.stat-card .stat-val { font-size: 26px; font-weight: 800; color: var(--accent); }
.stat-card .stat-label { font-size: 11px; color: var(--text3); margin-top: 4px; }
.chart-bar-row { display: flex; align-items: flex-end; gap: 4px; height: 100px; padding: 0 4px; }
.chart-bar-row .bar-col { flex:1; display:flex; flex-direction:column; align-items:center; gap:4px; }
.chart-bar-row .bar-col .bar { width:100%; background:linear-gradient(180deg, var(--accent), var(--accent2)); border-radius:4px 4px 0 0; transition: height .5s ease; min-height:2px; }
.chart-bar-row .bar-col .bar-label { font-size:9px; color:var(--text3); }
/* ===== 骨架屏 ===== */
.skeleton {
  background: linear-gradient(90deg, var(--card) 25%, var(--card2) 50%, var(--card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: 8px;
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-line { height: 14px; margin-bottom: 8px; }
.skeleton-line:last-child { width: 60%; }
.skeleton-card {
  padding: 20px;
  margin-bottom: 10px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--glass-border);
}
.skeleton-cover {
  width: 66px; height: 88px;
  border-radius: 8px;
  flex-shrink: 0;
}
.skeleton-title { height: 18px; width: 55%; margin-bottom: 10px; }
.skeleton-meta { height: 12px; width: 35%; }
/* ===== 页面加载过渡 ===== */
.page-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  flex-direction: column;
  gap: 14px;
  color: var(--text3);
  font-size: 14px;
}
.page-loader .loader-dots { display: flex; gap: 6px; }
.page-loader .loader-dots span {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: dotBounce 1.2s ease infinite;
}
.page-loader .loader-dots span:nth-child(2) { animation-delay: .15s; }
.page-loader .loader-dots span:nth-child(3) { animation-delay: .3s; }
@keyframes dotBounce { 0%,80%,100% { transform: scale(.6); opacity: .4; } 40% { transform: scale(1); opacity: 1; } }
/* ===== 轻提示自动消失 ===== */
@keyframes fadeOutUp { from { opacity:1; transform:translateY(0); } to { opacity:0; transform:translateY(-20px); } }
/* ===== 阅读器书签 ===== */
.bookmark-indicator {
  position: absolute;
  right: 8px;
  top: 0;
  color: var(--accent3);
  font-size: 18px;
  z-index: 5;
  cursor: pointer;
}
/* ===== 自动滚屏 ===== */
.auto-scroll-indicator {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,.7);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  z-index: 220;
  display: none;
  pointer-events: none;
}
.auto-scroll-indicator.show { display: block; }

/* ===== 下拉刷新 ===== */
.pull-hint {
  position: fixed;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  z-index: 300;
  display: none;
  pointer-events: none;
  transition: all .3s;
}
.pull-hint.show { display: block; }
.pull-hint.refreshing { color: var(--accent); border-color: var(--accent); }

/* ===== 封面颜色选择器 ===== */
.cover-color-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.cover-color-picker .color-dot {
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .2s;
}
.cover-color-picker .color-dot.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(240,124,60,.2);
  transform: scale(1.15);
}
/* ===== 书架卡片操作按钮 ===== */
.shelf-card-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.shelf-card-actions .mini-btn {
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text2);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .2s;
}
.shelf-card-actions .mini-btn:active { border-color: var(--accent); color: var(--accent); }
/* ===== 最近阅读标记 ===== */
.recent-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  padding: 2px 10px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 700;
  margin-left: 6px;
  letter-spacing: 0.5px;
}
/* ===== 书架更多菜单 ===== */
.shelf-card { position: relative; }
.shelf-more-menu {
  position: absolute;
  right: 8px;
  top: 44px;
  background: var(--glass);
  backdrop-filter: var(--backdrop);
  -webkit-backdrop-filter: var(--backdrop);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 4px;
  z-index: 60;
  display: none;
  box-shadow: var(--shadow);
  min-width: 130px;
}
.shelf-more-menu.show { display: block; }
.shelf-more-menu button {
  display: block;
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  padding: 9px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
}
.shelf-more-menu button:active { background: var(--bg2); }
.shelf-more-menu button.danger { color: var(--danger); }

/* ===== 翻页动画 ===== */
.reader-content.anim-forward {
  animation: slideInRight .35s ease-out;
}
.reader-content.anim-back {
  animation: slideInLeft .35s ease-out;
}
@keyframes slideInRight {
  from { transform: translateX(30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideInLeft {
  from { transform: translateX(-30px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== TTS 按钮状态 ===== */
.reader-menu .menu-labeled-btn.tts-playing {
  border-color: var(--accent) !important;
  background: rgba(240,124,60,.15) !important;
  animation: pulse-tts 1.2s ease-in-out infinite;
}
@keyframes pulse-tts {
  0%, 100% { box-shadow: 0 0 0 0 rgba(240,124,60,.4); }
  50% { box-shadow: 0 0 0 8px rgba(240,124,60,0); }
}

/* ===== 阅读时间估算 ===== */
.reading-estimate {
  font-size: 11px;
  color: inherit;
  opacity: 0.5;
  text-align: center;
}

/* ===== 热力图 ===== */
.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13px, 1fr));
  gap: 3px;
}
.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--bg2);
  cursor: default;
  transition: transform .15s;
}
.heatmap-cell:hover { transform: scale(1.5); z-index: 1; }
.heatmap-cell[data-level="1"] { background: rgba(240,124,60,.25); }
.heatmap-cell[data-level="2"] { background: rgba(240,124,60,.45); }
.heatmap-cell[data-level="3"] { background: rgba(240,124,60,.65); }
.heatmap-cell[data-level="4"] { background: rgba(240,124,60,.9); }

/* ===== 每日目标环 ===== */
.goal-ring-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
}
.goal-ring {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: conic-gradient(var(--accent) var(--goal-pct, 0%), transparent 0);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.goal-ring::after {
  content: '';
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--card);
  position: absolute;
}
.goal-ring-text {
  position: relative;
  z-index: 1;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
}
.goal-info { flex: 1; }
.goal-info .goal-title { font-size: 13px; font-weight: 600; }
.goal-info .goal-detail { font-size: 11px; color: var(--text2); margin-top: 2px; }
.goal-set-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text2);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
}

/* ===== 标签 ===== */
.tag-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 14px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--glass-border);
  color: var(--text2);
  background: var(--card);
  transition: all .2s;
  font-family: inherit;
}
.tag-chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }
.tag-chip .tag-del { font-size: 14px; opacity: 0.5; }
.tag-chip .tag-del:hover { opacity: 1; }

/* ===== 排序栏 ===== */
.sort-bar {
  display: flex;
  gap: 6px;
  padding: 8px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.sort-bar button {
  white-space: nowrap;
  flex-shrink: 0;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 6px 12px;
  border-radius: 14px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  transition: all .2s;
}
.sort-bar button.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ===== 书籍详情页 ===== */
.book-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 180;
  background: var(--bg);
  display: none;
  flex-direction: column;
  overflow-y: auto;
}
.book-detail-overlay.active { display: flex; }
.book-detail-cover {
  height: 200px;
  display: flex;
  align-items: flex-end;
  padding: 20px;
  position: relative;
}
.book-detail-cover h2 {
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,.5);
  margin: 0;
}
.book-detail-body {
  flex: 1;
  background: var(--bg);
  border-radius: 16px 16px 0 0;
  margin-top: -16px;
  position: relative;
  padding: 20px;
}
.book-detail-body .detail-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--glass-border);
  font-size: 14px;
}
.book-detail-body .detail-label { color: var(--text2); }
.detail-back-btn {
  position: absolute;
  top: 16px; left: 16px;
  background: rgba(255,255,255,.2);
  border: none;
  color: #fff;
  width: 36px; height: 36px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  z-index: 1;
  backdrop-filter: blur(6px);
}

/* ===== 敏感词检测 ===== */
.word-freq-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 6px;
  background: var(--bg2);
}
.word-freq-item .wf-word { font-weight: 600; min-width: 60px; }
.word-freq-item .wf-bar-wrap {
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: var(--glass-border);
  overflow: hidden;
}
.word-freq-item .wf-bar {
  height: 100%;
  border-radius: 4px;
  background: var(--danger);
  transition: width .3s;
}

/* ===== 选择模式 ===== */
.select-mode-bar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--card);
  border-top: 1px solid var(--border);
  position: sticky;
  bottom: 0;
  z-index: 50;
}
.select-mode-bar.active { display: flex; }
.select-checkbox {
  width: 20px; height: 20px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ===== 在线书源搜索结果 ===== */
.os-search-box {
  display: flex;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.os-search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(240,168,64,0.15);
}
.os-search-box input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 15px;
  padding: 12px 16px;
  outline: none;
}
.os-search-box input::placeholder { color: var(--text3); }
.os-search-box .os-search-btn {
  flex-shrink: 0;
  padding: 12px 20px;
  background: var(--accent);
  color: #0a0a0a;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: filter .2s;
}
.os-search-box .os-search-btn:hover { filter: brightness(1.1); }
/* 章节选择 */
.ch-select-label { transition: background .1s; }
.ch-select-label:hover { background: var(--bg2); }
.ch-select-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.os-status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 4px;
  font-size: 12px;
  color: var(--text3);
  min-height: 20px;
}
.os-status-bar .os-status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.os-status-dot.searching { background: var(--accent); animation: pulse-dot 0.8s infinite; }
.os-status-dot.success { background: #4caf84; }
.os-status-dot.error { background: #e06060; }
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}
.os-results-container {
  max-height: 50vh;
  overflow-y: auto;
  border-radius: 8px;
}
.online-search-card {
  display: flex;
  gap: 14px;
  padding: 14px;
  margin: 4px;
  border-radius: 10px;
  cursor: pointer;
  transition: all .2s;
  border: 1px solid transparent;
}
.online-search-card:hover {
  background: var(--bg2);
  border-color: var(--glass-border);
  transform: translateX(3px);
}
.online-search-card .os-cover {
  width: 52px; height: 70px;
  flex-shrink: 0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 3px 10px rgba(0,0,0,0.3);
}
.online-search-card .os-info { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: center; }
.online-search-card .os-title { font-weight: 600; font-size: 15px; margin-bottom: 4px; line-height: 1.3; }
.online-search-card .os-author { font-size: 12px; color: var(--text2); }
.online-search-card .os-source-tag {
  display: inline-block;
  font-size: 10px;
  background: rgba(240,168,64,0.12);
  color: var(--accent);
  padding: 2px 7px;
  border-radius: 10px;
  margin-left: 6px;
  font-weight: 500;
  vertical-align: middle;
}
.online-search-card .os-index {
  font-size: 12px;
  color: var(--text3);
  min-width: 24px;
  text-align: center;
  flex-shrink: 0;
  align-self: center;
  font-weight: 600;
}
.os-empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text3);
}
.os-empty-state .os-empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.6; }
.os-empty-state p { margin: 4px 0; font-size: 13px; }
.os-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px;
  gap: 12px;
}

/* ===== 书源卡片 ===== */
.source-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px;
  background: var(--bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer; transition: all .15s;
  font-size: 12px;
}
.source-card:hover { border-color: var(--accent); background: var(--bg2); }
.source-card-active { border-color: var(--accent); background: rgba(99,102,241,0.1); }
.source-card-name { font-weight: 600; color: var(--text); font-size: 14px; }
.source-card-url { font-size: 10px; color: var(--text3); max-width: 50%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.source-card-desc { font-size: 11px; color: var(--text3); margin-top: 2px; }


/* ===== 在线章节列表项 ===== */
.online-chapter-item {
  padding: 10px 12px;
  border-bottom: 1px solid var(--glass-border);
  font-size: 13px;
  cursor: pointer;
  transition: background .15s;
}
.online-chapter-item:hover { background: var(--bg2); }
.online-chapter-item.loading { color: var(--text3); cursor: default; }

/* ===== 下载进度 ===== */
.download-progress {
  width: 100%;
  height: 4px;
  background: var(--bg2);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}
.download-progress .fill {
  height: 100%;
  background: var(--accent);
  transition: width .3s;
}