/**
 * 海灵菇 AI 写作工具 - 移动端深度适配
 * 所有样式仅在 <=768px 生效，桌面端零影响
 */

/* ==================== 底部Tab导航栏 ==================== */
.mobile-bottom-tab {
  display: none;
}

@media (max-width: 768px) {
  .mobile-bottom-tab {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-primary, #fff);
    border-top: 1px solid var(--border-color, #E5E6EB);
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.08);
    z-index: 1001;
    align-items: center;
    justify-content: space-around;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  .mobile-bottom-tab .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    flex: 1;
    height: 100%;
    text-decoration: none;
    color: var(--text-secondary, #86909C);
    font-size: 10px;
    font-weight: 500;
    transition: color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    cursor: pointer;
    position: relative;
  }

  .mobile-bottom-tab .tab-item .tab-icon {
    font-size: 20px;
    line-height: 1;
  }

  .mobile-bottom-tab .tab-item .tab-label {
    font-size: 10px;
    line-height: 1;
  }

  .mobile-bottom-tab .tab-item.active {
    color: var(--primary-color, #5b9a6f);
  }

  .mobile-bottom-tab .tab-item.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 2px;
    background: var(--primary-color, #5b9a6f);
    border-radius: 0 0 2px 2px;
  }

  .mobile-bottom-tab.tab-hidden {
    transform: translateY(100%);
    transition: transform 0.25s ease;
  }
}

/* ==================== 顶部栏移动端适配 ==================== */
@media (max-width: 768px) {
  .creation-topbar {
    padding: 0 12px !important;
    height: 48px !important;
    min-height: 48px !important;
    flex-wrap: nowrap !important;
    gap: 0 !important;
  }

  /* 让topbar-left占满整行，内部space-between把书名生成按钮推到最右 */
  .topbar-left {
    flex: 1 !important;
    min-width: 0 !important;
    justify-content: space-between !important;
    gap: 6px !important;
  }

  .topbar-arrow {
    display: none !important;
  }

  .topbar-bookname {
    flex: 1 !important;
    min-width: 0 !important;
    font-size: 14px !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    white-space: nowrap !important;
  }

  .topbar-btn-bookname {
    padding: 5px 10px !important;
    font-size: 12px !important;
    white-space: nowrap !important;
    flex-shrink: 0 !important;
  }

  .topbar-steps {
    display: none !important;
  }

  .topbar-right {
    display: none !important;
  }

  /* 隐藏浮动主题按钮（防止竞态条件产生） */
  .theme-floating-btn {
    display: none !important;
  }

  /* 已保存指示器改为浮动Toast样式（不抢夺顶部栏位置） */
  #save-status-indicator {
    position: fixed !important;
    top: 85px !important;
    right: 12px !important;
    z-index: 3000 !important;
    font-size: 12px !important;
    padding: 6px 12px !important;
    border-radius: 20px !important;
    background: var(--bg-primary, #fff) !important;
    box-shadow: 0 2px 12px rgba(0,0,0,0.15) !important;
    pointer-events: none !important;
    opacity: 0 !important;
    transition: opacity 0.3s ease !important;
    margin-right: 0 !important;
    display: inline-flex !important;
    align-items: center !important;
  }

  #save-status-indicator.saving,
  #save-status-indicator.success,
  #save-status-indicator.error {
    opacity: 1 !important;
  }

  #save-status-indicator.success {
    color: var(--success-color, #5b9a6f) !important;
  }

  #save-status-indicator.error {
    color: var(--danger-color, #F56C6C) !important;
  }
}

/* ==================== 额度信息栏移动端适配 ==================== */
@media (max-width: 768px) {
  #quotaInfoBar {
    top: 48px !important;
    height: 32px !important;
    min-height: 32px !important;
    font-size: 12px !important;
    padding: 0 12px !important;
    gap: 0 !important;
    flex-wrap: nowrap !important;
  }

  #quotaInfoBar .quota-item-expand {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
  }

  #quotaInfoBar .quota-expand-arrow {
    font-size: 10px;
    transition: transform 0.2s ease;
    color: var(--text-secondary, #86909C);
  }

  #quotaInfoBar .quota-expand-arrow.expanded {
    transform: rotate(90deg);
  }

  #quotaInfoBar .quota-item-detail {
    display: none;
  }

  #quotaInfoBar.quota-expanded .quota-item-detail {
    display: flex;
  }

  #quotaInfoBar.quota-expanded {
    height: auto !important;
    min-height: 32px !important;
    flex-wrap: wrap !important;
    padding-bottom: 6px !important;
  }

  #quotaInfoBar .quota-detail-row {
    display: none;
    width: 100%;
    padding-top: 4px;
    border-top: 1px solid var(--border-light, #F0F0F0);
    margin-top: 4px;
    gap: 12px;
  }

  #quotaInfoBar.quota-expanded .quota-detail-row {
    display: flex;
  }

  #quotaInfoBar .quota-item-level,
  #quotaInfoBar .quota-item-expire {
    display: none;
  }

  #quotaInfoBar.quota-expanded .quota-item-level,
  #quotaInfoBar.quota-expanded .quota-item-expire {
    display: flex;
  }
}

/* ==================== 主内容区移动端适配 ==================== */
@media (max-width: 768px) {
  /* 防止任何页面横向溢出 */
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }

  .creation-main {
    padding: calc(48px + 32px + 12px) 12px 72px !important;
    max-width: 100vw !important;
    overflow-x: hidden !important;
  }

  .creation-content {
    padding: 16px 12px !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
  }

  .creation-module {
    padding: 14px 12px !important;
    margin-bottom: 16px !important;
    max-width: 100% !important;
    overflow: hidden !important;
  }

  .content-header {
    flex-wrap: wrap !important;
    gap: 8px !important;
    margin-bottom: 16px !important;
  }

  .content-title {
    font-size: 18px !important;
  }
}

/* ==================== 按钮移动端优化 ==================== */
@media (max-width: 768px) {
  .btn {
    min-height: 44px !important;
    font-size: 14px !important;
    padding: 10px 16px !important;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .btn-sm {
    min-height: 38px !important;
    padding: 8px 12px !important;
    font-size: 13px !important;
  }

  .btn-lg {
    min-height: 48px !important;
    padding: 12px 20px !important;
    font-size: 15px !important;
  }

  .btn-block-mobile {
    width: 100% !important;
  }

  .btn-grid-2x2 {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
  }

  .btn-grid-2x2 .btn {
    width: 100% !important;
    white-space: nowrap !important;
  }
}

/* ==================== 灵感页移动端适配 ==================== */
@media (max-width: 768px) {
  .creation-two-column {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .creation-sidebar {
    position: static !important;
    max-height: none !important;
    order: 2;
    padding: 12px !important;
  }

  .creation-two-column > .creation-content {
    order: 1;
  }

  .tag-category-header {
    padding: 10px 12px !important;
  }

  .tag-category-body {
    padding: 12px !important;
  }

  .tag-item {
    min-height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    padding: 8px 14px !important;
    font-size: 14px !important;
  }

  .tag-list {
    gap: 6px !important;
  }

  .tag-custom-input-group {
    gap: 6px !important;
  }

  .tag-custom-input {
    min-height: 44px !important;
    font-size: 16px !important;
  }

  .tag-custom-add {
    min-height: 44px !important;
    min-width: 44px !important;
  }

  .form-textarea {
    min-height: 150px !important;
    font-size: 16px !important;
    line-height: 1.7 !important;
  }

  .form-textarea-large {
    min-height: 250px !important;
  }

  .tip-bar {
    padding: 10px 12px !important;
    font-size: 13px !important;
    margin: 10px 0 !important;
  }
}

/* ==================== 总纲页移动端适配 ==================== */
@media (max-width: 768px) {
  .three-column {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .two-column {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .card-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }

  .card {
    padding: 14px !important;
  }

  .card-add {
    min-height: 80px !important;
  }

  .module-header {
    margin-bottom: 12px !important;
  }

  .module-title {
    font-size: 16px !important;
  }

  .module-number {
    width: 28px !important;
    height: 28px !important;
    font-size: 12px !important;
  }

  .form-label {
    font-size: 13px !important;
    margin-bottom: 6px !important;
  }

  .form-input {
    min-height: 44px !important;
    font-size: 16px !important;
  }

  .form-select {
    min-height: 44px !important;
    font-size: 16px !important;
  }
}

/* ==================== 章纲页移动端适配 ==================== */
@media (max-width: 768px) {
  /* 隐藏桌面端侧边栏和收起按钮（用底部弹出面板替代） */
  #chapter-sidebar,
  #chapter-sidebar-toggle {
    display: none !important;
  }

  #chapter-two-column {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  .function-bar-row {
    gap: 6px !important;
  }

  .function-bar-row-wrap {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 6px !important;
  }

  .function-bar-row-wrap .btn {
    width: 100% !important;
    white-space: nowrap !important;
    font-size: 13px !important;
  }

  .context-memory {
    padding: 12px !important;
    margin-top: 12px !important;
    font-size: 12px !important;
  }

  .context-memory-title {
    font-size: 13px !important;
  }
}

/* ==================== 章纲/写作页底部弹出面板 ==================== */
.chapter-bottom-panel {
  display: none;
}

@media (max-width: 768px) {
  .chapter-bottom-panel {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary, #fff);
    border-radius: 16px 16px 0 0;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
    z-index: 2000;
    max-height: 65vh;
    transform: translateY(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding-bottom: calc(56px + env(safe-area-inset-bottom, 0px));
  }

  .chapter-bottom-panel.show {
    transform: translateY(0);
  }

  .chapter-bottom-panel .panel-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .chapter-bottom-panel.show .panel-overlay {
    opacity: 1;
    visibility: visible;
  }

  .chapter-bottom-panel .panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color, #E5E6EB);
    position: sticky;
    top: 0;
    background: var(--bg-primary, #fff);
    border-radius: 16px 16px 0 0;
    z-index: 1;
  }

  .chapter-bottom-panel .panel-drag-bar {
    width: 36px;
    height: 4px;
    background: var(--border-color, #E5E6EB);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
  }

  .chapter-bottom-panel .panel-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary, #1D2129);
  }

  .chapter-bottom-panel .panel-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary, #F5F7FA);
    border: none;
    border-radius: 50%;
    font-size: 16px;
    color: var(--text-secondary, #86909C);
    cursor: pointer;
  }

  .chapter-bottom-panel .panel-body {
    overflow-y: auto;
    max-height: calc(65vh - 50px);
    padding: 8px 0;
  }

  .chapter-bottom-panel .panel-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light, #F0F0F0);
    cursor: pointer;
    transition: background 0.15s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .chapter-bottom-panel .panel-item:active {
    background: var(--bg-secondary, #F5F7FA);
  }

  .chapter-bottom-panel .panel-item.active {
    border-left: 3px solid var(--primary-color, #5b9a6f);
    background: var(--primary-light, #e8f5e9);
  }

  .chapter-bottom-panel .panel-item-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary, #1D2129);
    margin-bottom: 2px;
  }

  .chapter-bottom-panel .panel-item-summary {
    font-size: 12px;
    color: var(--text-secondary, #86909C);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .chapter-bottom-panel-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-secondary, #F5F7FA);
    border: 1px solid var(--border-color, #E5E6EB);
    border-radius: var(--radius-md, 8px);
    font-size: 13px;
    color: var(--text-primary, #1D2129);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    min-height: 40px;
    width: 100%;
    justify-content: space-between;
  }

  .chapter-bottom-panel-trigger .trigger-text {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    text-align: left;
  }

  .chapter-bottom-panel-trigger .trigger-arrow {
    font-size: 12px;
    color: var(--text-secondary, #86909C);
    flex-shrink: 0;
  }
}

/* ==================== 写作页移动端适配 ==================== */
@media (max-width: 768px) {
  /* 隐藏桌面端侧边栏和收起按钮 */
  #writing-sidebar,
  #writing-sidebar-toggle {
    display: none !important;
  }

  #writing-two-column {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  /* 移动端下拉框显示 */
  #chapter-select-mobile {
    display: block !important;
    width: 100% !important;
    margin-bottom: 12px;
    min-height: 44px !important;
    font-size: 16px !important;
    padding: 10px 12px !important;
    border-radius: var(--radius-md, 8px) !important;
    appearance: none;
    -webkit-appearance: none;
    background: var(--bg-primary, #fff) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%2386909C' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 12px center;
    padding-right: 32px !important;
  }

  .font-size-select {
    min-height: 36px !important;
    padding: 6px 8px !important;
    font-size: 13px !important;
  }

  /* 写作页按钮工具栏横向滚动 - 使用属性选择器匹配inline style */
  .creation-content > div[style*="overflow-x"] {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    flex-wrap: nowrap !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .creation-content > div[style*="overflow-x"]::-webkit-scrollbar {
    display: none !important;
  }

  .creation-content > div[style*="overflow-x"] .btn {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
  }

  /* 正文字号在手机端默认16px防缩放 */
  #content-textarea {
    font-size: 16px !important;
    min-height: 300px !important;
    line-height: 1.8 !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .creation-content textarea,
  .creation-content input[type="text"],
  .creation-content input[type="number"],
  .creation-content select {
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
}

/* 桌面端隐藏移动端下拉框 */
@media (min-width: 769px) {
  #chapter-select-mobile {
    display: none !important;
  }
}

/* ==================== 弹窗移动端底部Sheet式（仅创作页） ==================== */
@media (max-width: 768px) {
  /* 创作页弹窗：.modal-overlay > .modal */
  .modal-overlay {
    align-items: flex-end !important;
  }

  .modal-overlay .modal {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 90vh !important;
    border-radius: 16px 16px 0 0 !important;
    transform: translateY(100%) !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
  }

  .modal-overlay.show .modal {
    transform: translateY(0) !important;
  }

  .modal-overlay .modal .modal-body {
    flex: 1 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-height: calc(90vh - 120px) !important;
  }

  .modal-overlay .modal .modal-footer {
    flex-shrink: 0 !important;
    position: sticky !important;
    bottom: 0 !important;
    background: var(--bg-primary, #fff) !important;
    z-index: 10 !important;
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)) !important;
  }

  /* 确认弹窗特殊处理：居中显示 */
  .modal-overlay .modal[style*="max-width: 450px"] {
    align-self: center !important;
    border-radius: 16px !important;
    max-width: 90% !important;
    margin-bottom: auto !important;
    transform: scale(0.9) !important;
    transition: transform 0.3s ease !important;
  }

  .modal-overlay.show .modal[style*="max-width: 450px"] {
    transform: scale(1) !important;
  }

  /* 创作页弹窗header */
  .modal-overlay .modal-header {
    padding: 16px !important;
  }

  .modal-overlay .modal-header::before {
    content: '';
    display: block;
    width: 36px;
    height: 4px;
    background: var(--border-color, #E5E6EB);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
  }

  .modal-overlay .modal-title {
    font-size: 16px !important;
    padding-top: 8px;
  }

  .modal-overlay .modal-body {
    padding: 16px !important;
  }

  .modal-overlay .modal-footer {
    padding: 12px 16px !important;
  }

  .modal-overlay .modal-footer .btn {
    flex: 1 !important;
  }
}

/* ==================== 写作风格选择网格 ==================== */
@media (max-width: 768px) {
  #writing-style-list {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 6px !important;
  }

  #writing-style-list .tag-item {
    min-height: 44px !important;
    font-size: 13px !important;
    padding: 8px 6px !important;
    text-align: center !important;
  }

  /* 书名生成弹窗：确保完整展示 */
  #bookname-modal .modal-body {
    max-height: calc(90vh - 130px) !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  #bookname-modal .modal-footer {
    flex-shrink: 0 !important;
    position: sticky !important;
    bottom: 0 !important;
    background: var(--bg-primary, #fff) !important;
    z-index: 10 !important;
  }

  /* 书名弹窗内的标签区域可折叠 */
  #bookname-modal .tag-category-body {
    max-height: 200px !important;
    overflow-y: auto !important;
  }
}

/* ==================== 章节目录选择器美化（写作页） ==================== */
@media (max-width: 768px) {
  #chapter-select-mobile {
    display: block !important;
    width: 100% !important;
    appearance: none;
    -webkit-appearance: none;
    background: var(--bg-primary, #fff) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' fill='none' stroke='%2386909C' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 12px center;
    padding-right: 32px !important;
  }
}

/* ==================== 移动端隐藏元素 ==================== */
@media (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .mobile-only {
    display: none !important;
  }
}

/* ==================== 输入框防iOS缩放 ==================== */
@media (max-width: 768px) {
  input[type="text"],
  input[type="number"],
  input[type="search"],
  select,
  textarea {
    font-size: max(16px, inherit) !important;
  }

  .form-input,
  .form-textarea,
  .form-select,
  .card-field-input {
    font-size: 16px !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
}

/* ==================== 首页/仪表盘移动端适配 ==================== */
@media (max-width: 768px) {
  /* 防止横向溢出 */
  html, body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }

  /* 大横幅隐藏 */
  .green-banner {
    display: none !important;
  }

  /* 主内容区顶部间距调整（横幅隐藏后不需要预留空间） */
  .main-container {
    padding-top: 80px !important;
    overflow-x: hidden !important;
  }

  /* 侧边栏精简 */
  .sidebar {
    padding: 0.75rem !important;
  }

  .user-info-card {
    padding: 0.75rem !important;
    margin: 0 0 0.75rem !important;
  }

  .user-action-buttons {
    flex-direction: row !important;
    gap: 0.5rem !important;
  }

  .btn-action {
    flex: 1 !important;
    padding: 0.5rem !important;
    font-size: 0.75rem !important;
  }

  /* 书架区域 */
  .content-area {
    padding: 0.75rem !important;
    overflow-x: hidden !important;
  }

  .bookshelf-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.75rem !important;
    margin-bottom: 1rem !important;
  }

  .bookshelf-title-row {
    width: 100% !important;
    flex-wrap: nowrap !important;
  }

  .bookshelf-title {
    font-size: 1.1rem !important;
    white-space: nowrap !important;
  }

  .bookshelf-count {
    white-space: nowrap !important;
  }

  .bookshelf-search {
    width: 100% !important;
    margin-left: 0 !important;
  }

  .search-input {
    width: 100% !important;
    box-sizing: border-box !important;
    font-size: 16px !important;
  }

  /* 书籍卡片一行两个 */
  .books-container {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.75rem !important;
  }

  .book-3d-wrapper {
    height: 240px !important;
  }

  .book-body {
    min-height: 180px !important;
    padding: 0.75rem !important;
  }

  .book-name {
    font-size: 0.8rem !important;
  }

  /* 分页栏 */
  .bookshelf-pagination {
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 4px !important;
  }

  .pagination-btn {
    padding: 6px 10px !important;
    font-size: 12px !important;
  }
}

/* ==================== 弹窗确认框手机端修复 ==================== */
@media (max-width: 768px) {
  /* 确保所有弹窗（包括动态创建的确认框）在手机端始终在可视区域内 */
  .modal-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    align-items: flex-end !important;
    justify-content: center !important;
  }

  .modal-overlay .modal {
    margin-bottom: 0 !important;
    border-radius: 16px 16px 0 0 !important;
    max-height: 90vh !important;
    height: auto !important;
    width: 100% !important;
    max-width: 100% !important;
    display: flex !important;
    flex-direction: column !important;
  }

  .modal-overlay .modal .modal-body {
    flex: 1 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    max-height: calc(90vh - 120px) !important;
  }

  .modal-overlay .modal .modal-footer {
    flex-shrink: 0 !important;
    position: sticky !important;
    bottom: 0 !important;
    background: var(--bg-primary, #fff) !important;
    z-index: 10 !important;
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)) !important;
  }

  /* 确认弹窗特殊处理：居中显示而非底部弹出 */
  .modal-overlay .modal[style*="max-width: 450px"] {
    align-self: center !important;
    border-radius: 16px !important;
    max-width: 90% !important;
    margin-bottom: auto !important;
  }
}

/* ==================== 写作页核心按钮行修复 ==================== */
@media (max-width: 768px) {
  /* 生成章节/批量生成/智能续写/智能校对按钮行 */
  .creation-content > div[style*="overflow-x"] {
    flex-wrap: wrap !important;
    overflow-x: visible !important;
    gap: 6px !important;
  }

  .creation-content > div[style*="overflow-x"] .btn {
    flex: 1 1 auto !important;
    min-width: 0 !important;
    white-space: nowrap !important;
    font-size: 13px !important;
    padding: 8px 6px !important;
  }

  /* 工具栏内的字号选择、排版、风格、去AI按钮 - 通过JS添加的class控制 */
  .writing-toolbar-mobile {
    flex-direction: row !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 6px !important;
  }

  .writing-toolbar-mobile .btn,
  .writing-toolbar-mobile select,
  .writing-toolbar-mobile > div {
    flex-shrink: 0 !important;
    width: auto !important;
    max-width: none !important;
    white-space: nowrap !important;
    font-size: 12px !important;
  }

  .writing-toolbar-mobile .btn {
    padding: 6px 8px !important;
    display: inline-flex !important;
  }

  /* 写作工具栏两行布局（JS重构后的样式） */
  #font-size-select {
    display: none !important;
  }

  .writing-toolbar-row1 {
    display: flex !important;
    gap: 6px !important;
    flex-wrap: wrap !important;
    align-items: center !important;
  }

  .writing-toolbar-row1 .btn {
    white-space: nowrap !important;
    font-size: 13px !important;
    padding: 8px 12px !important;
    flex-shrink: 0 !important;
  }

  .writing-toolbar-row2 {
    display: flex !important;
    gap: 6px !important;
    align-items: center !important;
  }

  .writing-toolbar-row2 .font-size-select,
  .writing-toolbar-row2 select {
    min-height: 36px !important;
    padding: 6px 8px !important;
    font-size: 13px !important;
  }

  .writing-toolbar-row2 span {
    font-size: 13px !important;
    white-space: nowrap !important;
  }
}

/* ==================== 移动端文本编辑框全屏功能 ==================== */
@media (max-width: 768px) {
  /* textarea包裹容器 */
  .mobile-textarea-fs-wrap {
    position: relative;
    display: block;
    width: 100%;
  }

  /* 全屏切换按钮 - 固定在textarea内部右上角 */
  .mobile-textarea-fs-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    background: var(--bg-secondary, #F5F7FA);
    border: 1px solid var(--border-color, #E5E6EB);
    border-radius: 6px;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary, #86909C);
    transition: background 0.2s ease, color 0.2s ease;
    -webkit-tap-highlight-color: transparent;
    padding: 0;
    pointer-events: auto;
  }

  .mobile-textarea-fs-btn:active {
    background: var(--primary-color, #5b9a6f);
    color: #fff;
  }

  /* 包裹容器内的textarea确保占满宽度 */
  .mobile-textarea-fs-wrap textarea.form-textarea {
    width: 100%;
    display: block;
  }

  /* 全屏态下的退出按钮 */
  .mobile-fs-btn-active {
    position: fixed !important;
    top: 8px !important;
    right: 8px !important;
    z-index: 10000 !important;
    background: var(--bg-primary, #fff) !important;
    color: var(--text-primary, #1D2129) !important;
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1)) !important;
    border-color: var(--border-color, #E5E6EB) !important;
  }

  /* textarea全屏激活态 */
  textarea.form-textarea.mobile-fs-active {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    height: 100dvh !important;
    min-height: 100vh !important;
    min-height: 100dvh !important;
    z-index: 9999 !important;
    border-radius: 0 !important;
    border: none !important;
    padding: 52px 16px 24px !important;
    background: var(--bg-primary, #fff) !important;
    color: var(--text-primary, #1D2129) !important;
    font-size: 16px !important;
    line-height: 1.9 !important;
    box-shadow: none !important;
    resize: none !important;
  }
}

/* ==================== 首页弹窗手机端适配 ==================== */
@media (max-width: 768px) {
  /* 首页弹窗结构：.modal-container > .modal > .modal-content */
  .modal-container {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    z-index: 9999 !important;
  }

  .modal-container .modal {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    display: flex !important;
    align-items: flex-end !important;
    justify-content: center !important;
    background: rgba(0,0,0,0.5) !important;
    margin: 0 !important;
    padding: 0 !important;
    border-radius: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .modal-container .modal .modal-content {
    width: 100% !important;
    max-width: 100% !important;
    max-height: 90vh !important;
    border-radius: 16px 16px 0 0 !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    background: #fff !important;
    box-shadow: 0 -4px 24px rgba(0,0,0,0.15) !important;
  }

  .modal-container .modal .modal-content .modal-body {
    max-height: calc(90vh - 130px) !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .modal-container .modal .modal-content .modal-actions {
    position: sticky !important;
    bottom: 0 !important;
    background: #fff !important;
    padding: 12px 16px !important;
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)) !important;
    border-top: 1px solid #eee !important;
    z-index: 10 !important;
    display: flex !important;
    gap: 8px !important;
    justify-content: flex-end !important;
  }

  .modal-container .modal .modal-content .modal-actions .btn {
    flex: 1 !important;
  }
}

/* ==================== 社区页手机端适配 ==================== */
@media (max-width: 768px) {
  .community-page,
  .community-page body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }

  .community-header {
    padding: 1rem !important;
    flex-direction: column !important;
    gap: 0.5rem !important;
  }

  .community-header .platform-name {
    font-size: 1rem !important;
  }
}