/* ============================================
   NovelCraft - 组件样式（完整版）
   ============================================ */

/* ========== 按钮 ========== */
.btn-icon {
    width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full); color: var(--text-secondary);
    transition: all var(--duration-fast) var(--ease-smooth); font-size: 20px; flex-shrink: 0;
}
.btn-icon:hover { background: var(--bg-grouped); color: var(--text-primary); }
.btn-icon:active { transform: scale(0.92); }
.btn-icon.active { color: var(--accent); background: var(--accent-light); }

.btn-icon-sm {
    width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-full); color: var(--text-tertiary); font-size: 16px;
    transition: color var(--duration-fast);
}
.btn-icon-sm:hover { color: var(--text-secondary); }

.btn-new-chat {
    display: flex; align-items: center; justify-content: center; gap: var(--space-sm);
    width: 100%; padding: 12px; background: var(--accent-gradient);
    color: white; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600;
    transition: all var(--duration-fast) var(--ease-smooth);
    box-shadow: 0 2px 8px rgba(0, 122, 255, 0.25);
}
.btn-new-chat:hover { box-shadow: 0 4px 16px rgba(0, 122, 255, 0.35); transform: translateY(-1px); }
.btn-new-chat:active { transform: translateY(0) scale(0.98); }

.btn-send {
    width: 44px; height: 44px; border-radius: 50%; background: var(--accent);
    color: white; display: flex; align-items: center; justify-content: center;
    font-size: 20px; transition: all var(--duration-fast) var(--ease-spring);
    box-shadow: 0 2px 8px rgba(0, 122, 255, 0.3); flex-shrink: 0;
}
.btn-send:hover:not(:disabled) { background: var(--accent-hover); box-shadow: 0 4px 16px rgba(0, 122, 255, 0.4); transform: scale(1.05); }
.btn-send:active:not(:disabled) { transform: scale(0.92); }
.btn-send:disabled { background: var(--text-tertiary); box-shadow: none; cursor: not-allowed; opacity: 0.5; }

.btn-stop {
    width: 44px; height: 44px; border-radius: 50%; background: var(--red);
    color: white; display: flex; align-items: center; justify-content: center;
    font-size: 18px; transition: all var(--duration-fast) var(--ease-spring);
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3); flex-shrink: 0;
    animation: pulseScale 1.5s ease-in-out infinite;
}
.btn-stop:hover { transform: scale(1.08); }
.btn-stop:active { transform: scale(0.92); }

.btn-text-danger {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 10px var(--space-sm); width: 100%; color: var(--red);
    font-size: 14px; font-weight: 500; border-radius: var(--radius-xs);
    transition: background var(--duration-fast);
}
.btn-text-danger:hover { background: var(--red-light); }

.btn-primary {
    flex: 1; padding: 12px; background: var(--accent); color: white;
    border-radius: var(--radius-sm); font-size: 16px; font-weight: 600;
    transition: all var(--duration-fast);
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:active { transform: scale(0.98); }

.btn-secondary {
    display: flex; align-items: center; justify-content: center; gap: var(--space-sm);
    flex: 1; padding: 12px; background: var(--bg-grouped); color: var(--text-primary);
    border-radius: var(--radius-sm); font-size: 16px; font-weight: 500;
    transition: all var(--duration-fast); width: 100%;
}
.btn-secondary:hover { background: var(--separator-opaque); }
.btn-secondary:active { transform: scale(0.98); }

.btn-primary-sm {
    padding: 8px 18px; background: var(--accent); color: white;
    border-radius: var(--radius-full); font-size: 14px; font-weight: 600;
    transition: all var(--duration-fast);
}
.btn-primary-sm:hover { background: var(--accent-hover); }
.btn-primary-sm:active { transform: scale(0.96); }

.btn-text-sm {
    font-size: 13px; color: var(--accent); font-weight: 500;
    padding: 4px 8px; border-radius: var(--radius-xs);
    transition: background var(--duration-fast);
}
.btn-text-sm:hover { background: var(--accent-light); }

.btn-sidebar-action {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 10px var(--space-sm); width: 100%;
    color: var(--text-secondary); font-size: 14px; font-weight: 500;
    border-radius: var(--radius-xs); transition: all var(--duration-fast);
}
.btn-sidebar-action:hover { background: var(--bg-grouped); color: var(--text-primary); }

/* ========== 自定义下拉选择器 ========== */
.custom-select { position: relative; flex-shrink: 0; }
.custom-select-trigger {
    display: flex; align-items: center; gap: 6px;
    background: var(--bg-grouped); border: 1px solid var(--separator);
    border-radius: var(--radius-xs); padding: 7px 12px;
    font-size: 14px; font-weight: 500; color: var(--text-primary);
    cursor: pointer; white-space: nowrap; height: 38px;
    min-width: 110px; max-width: 200px; outline: none;
    transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.custom-select-trigger:hover { border-color: var(--text-tertiary); }
.custom-select-trigger:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.12); }
.custom-select-arrow { font-size: 16px; color: var(--text-tertiary); transition: transform var(--duration-fast) var(--ease-smooth); flex-shrink: 0; }
.custom-select.open .custom-select-arrow { transform: rotate(180deg); }

.custom-select-dropdown {
    position: absolute; top: calc(100% + 6px); left: 0; z-index: 9999;
    min-width: 100%; max-height: 300px; overflow-y: auto; -webkit-overflow-scrolling: touch;
    background: var(--bg-secondary); border: 0.5px solid var(--separator);
    border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transform: translateY(-6px) scale(0.97);
    transform-origin: top left;
    transition: opacity var(--duration-fast) var(--ease-ios), transform var(--duration-fast) var(--ease-ios), visibility var(--duration-fast);
    pointer-events: none;
}
.custom-select.open .custom-select-dropdown { opacity: 1; visibility: visible; transform: translateY(0) scale(1); pointer-events: auto; }
.custom-select-option {
    padding: 10px 14px; font-size: 14px; cursor: pointer; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px; transition: background var(--duration-fast);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.custom-select-option:first-child { border-radius: var(--radius-sm) var(--radius-sm) 0 0; }
.custom-select-option:last-child { border-radius: 0 0 var(--radius-sm) var(--radius-sm); }
.custom-select-option:hover { background: var(--accent-light); }
.custom-select-option:active { background: var(--accent-soft); }
.custom-select-option.selected { color: var(--accent); font-weight: 600; background: var(--accent-soft); }
.custom-select-option.selected::after { content: '\eb7b'; font-family: 'remixicon'; margin-left: auto; font-size: 14px; flex-shrink: 0; }
.custom-select-empty { padding: 16px 14px; font-size: 13px; color: var(--text-tertiary); text-align: center; }

@media (max-width: 640px) {
    .custom-select-trigger { font-size: 13px; padding: 6px 10px; height: 34px; min-width: 90px; max-width: 140px; }
    .custom-select-dropdown { max-width: calc(100vw - 32px); }
}

/* ========== 历史记录 / 项目列表 ========== */
.history-item {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 10px 12px; border-radius: var(--radius-sm);
    cursor: pointer; transition: all var(--duration-fast);
    font-size: 14px; color: var(--text-secondary); position: relative; overflow: hidden;
}
.history-item:hover { background: var(--bg-grouped); color: var(--text-primary); }
.history-item.active { background: var(--accent-light); color: var(--accent); font-weight: 500; }
.history-item:active { transform: scale(0.98); }
.history-item i { font-size: 16px; flex-shrink: 0; }
.history-item-text { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-item-meta { font-size: 11px; color: var(--text-tertiary); flex-shrink: 0; }
.history-item-delete {
    opacity: 0; transition: opacity var(--duration-fast);
    color: var(--red); font-size: 14px; flex-shrink: 0; padding: 4px;
}
.history-item:hover .history-item-delete { opacity: 1; }

/* 章节列表项 */
.chapter-item {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 8px 12px; border-radius: var(--radius-xs);
    cursor: pointer; transition: all var(--duration-fast);
    font-size: 13px; color: var(--text-secondary);
}
.chapter-item:hover { background: var(--bg-grouped); color: var(--text-primary); }
.chapter-item.active { background: var(--accent-light); color: var(--accent); font-weight: 500; }
.chapter-item i { font-size: 14px; flex-shrink: 0; }
.chapter-item-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chapter-item-status { font-size: 10px; padding: 1px 6px; border-radius: var(--radius-full); flex-shrink: 0; }
.chapter-item-status.draft { background: var(--bg-grouped); color: var(--text-tertiary); }
.chapter-item-status.done { background: rgba(52,199,89,0.15); color: var(--green); }
.chapter-item-actions { display: flex; gap: 2px; opacity: 0.6; }
.chapter-item:hover .chapter-item-actions { opacity: 1; }

/* ========== 消息气泡 ========== */
.message { display: flex; gap: var(--space-sm); content-visibility: auto; contain-intrinsic-size: 80px; animation: messageIn .35s var(--ease-ios) both; will-change: transform, opacity; }
.message-user { flex-direction: row-reverse; }
.message-avatar {
    width: 32px; height: 32px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; flex-shrink: 0; align-self: flex-end;
}
.message-avatar-user {
    background: var(--accent-gradient); color: white; font-size: 14px; font-weight: 700;
}
.message-avatar-assistant { color: white; }
.message-content { max-width: 75%; min-width: 60px; }
.message-bubble {
    padding: 10px 16px; border-radius: var(--radius-lg);
    font-size: 15px; line-height: 1.55; word-break: break-word;
}
.message-user .message-bubble {
    background: var(--accent); color: white;
    border-bottom-right-radius: var(--radius-xs);
}
.message-assistant .message-bubble {
    background: var(--bg-secondary); color: var(--text-primary);
    border-bottom-left-radius: var(--radius-xs);
    border: 0.5px solid var(--separator); box-shadow: var(--shadow-sm);
}
.message-error .message-bubble {
    background: var(--red-light); color: var(--red);
    border-color: rgba(255, 59, 48, 0.2);
}

/* 思考过程 */
.reasoning-block {
    margin-bottom: var(--space-sm); border-radius: var(--radius-sm);
    overflow: hidden; background: var(--bg-grouped);
    border: 0.5px solid var(--separator);
}
.reasoning-toggle {
    display: flex; align-items: center; justify-content: space-between;
    padding: 8px 12px; font-size: 13px; font-weight: 600;
    color: var(--purple); cursor: pointer; user-select: none;
    transition: background var(--duration-fast);
}
.reasoning-toggle:hover { background: rgba(175, 82, 222, 0.06); }
.reasoning-toggle .toggle-icon { transition: transform var(--duration-fast); font-size: 16px; }
.reasoning-toggle.expanded .toggle-icon { transform: rotate(180deg); }
.reasoning-content {
    padding: 0 12px 10px; font-size: 13px; line-height: 1.6;
    color: var(--text-secondary); max-height: 200px; overflow-y: auto; display: none;
}
.reasoning-content.visible { display: block; animation: slideDown var(--duration-normal) var(--ease-ios); }

/* 打字指示器 */
.typing-indicator { display: flex; align-items: center; gap: 4px; padding: 4px 0; }
.typing-dot {
    width: 7px; height: 7px; border-radius: 50%; background: var(--text-tertiary);
    animation: typingBounce 1.4s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* 搜索指示器 */
.search-indicator {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: 12px; color: var(--accent); margin-bottom: 6px;
    padding: 3px 8px; background: var(--accent-light);
    border-radius: var(--radius-full);
}
.search-indicator i { font-size: 13px; animation: spin 1s linear infinite; }

/* ========== 欢迎界面 ========== */
.welcome-screen {
    display: flex; flex-direction: column; align-items: center;
    justify-content: center; text-align: center;
    padding: var(--space-xl); min-height: 60vh;
    animation: fadeInUp var(--duration-slow) var(--ease-ios);
}
.welcome-icon {
    width: 72px; height: 72px; border-radius: var(--radius-lg);
    background: var(--accent-gradient);
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 32px; margin-bottom: var(--space-lg);
    box-shadow: 0 8px 32px rgba(0, 122, 255, 0.3);
    animation: floatBounce 3s ease-in-out infinite;
}
.welcome-title { font-size: 26px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: var(--space-sm); }
.welcome-desc { font-size: 15px; color: var(--text-secondary); margin-bottom: var(--space-xl); max-width: 360px; }
.welcome-suggestions { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); width: 100%; max-width: 440px; }
.suggestion-chip {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 14px 16px; background: var(--bg-secondary);
    border: 0.5px solid var(--separator); border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500; transition: all var(--duration-fast); text-align: left;
}
.suggestion-chip i { font-size: 18px; color: var(--accent); flex-shrink: 0; }
.suggestion-chip:hover { background: var(--accent-soft); border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.suggestion-chip:active { transform: translateY(0) scale(0.98); }
@media (max-width: 480px) { .welcome-suggestions { grid-template-columns: 1fr; } .welcome-title { font-size: 22px; } }

/* ========== 模态框 ========== */
.modal-overlay {
    position: fixed; inset: 0; z-index: 200;
    display: flex; align-items: flex-end; justify-content: center;
    visibility: hidden; opacity: 0; pointer-events: none;
    transition: opacity var(--duration-normal), visibility var(--duration-normal);
}
.modal-overlay.visible { visibility: visible; opacity: 1; pointer-events: auto; }
.modal-backdrop {
    position: absolute; inset: 0; background: rgba(0, 0, 0, 0.35);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.modal-sheet {
    position: relative; z-index: 1; width: 100%; max-width: 480px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-md) var(--space-lg) calc(var(--space-lg) + var(--safe-bottom));
    max-height: 90vh; overflow-y: auto;
    transform: translateY(100%);
    transition: transform var(--duration-normal) var(--ease-ios);
}
.modal-overlay.visible .modal-sheet { transform: translateY(0); }

@media (min-width: 769px) {
    .modal-overlay { align-items: center; }
    .modal-sheet {
        border-radius: var(--radius-xl); max-height: 80vh;
        margin: var(--space-lg); box-shadow: var(--shadow-float);
        transform: translateY(40px) scale(0.95); opacity: 0;
    }
    .modal-overlay.visible .modal-sheet { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-handle { width: 36px; height: 4px; background: var(--separator-opaque); border-radius: 2px; margin: 0 auto var(--space-md); }
@media (min-width: 769px) { .modal-handle { display: none; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-lg); }
.modal-header-actions { display: flex; align-items: center; gap: var(--space-xs); }
.modal-title { font-size: 20px; font-weight: 700; letter-spacing: -0.3px; }
.modal-body { display: flex; flex-direction: column; gap: var(--space-md); }
.modal-footer { display: flex; gap: var(--space-sm); margin-top: var(--space-lg); }

/* 移动端弹窗底部按钮横置（不滚动） */
@media (max-width: 480px) {
    .modal-footer { flex-wrap: nowrap; gap: 4px; }
    .modal-footer button { white-space: nowrap; flex-shrink: 1; font-size: 12px; padding: 10px 8px !important; min-width: 0; }
    .modal-footer .btn-text-danger { font-size: 11px; padding: 10px 6px !important; }
}

/* ---- 章节编辑底部按钮 ---- */
.chapter-edit-footer { margin-top: var(--space-lg); display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.chapter-edit-footer-right { display: flex; gap: 10px; margin-left: auto; }

/* AI 续写 - 渐变紫 */
.btn-ai-continue {
    display: inline-flex; align-items: center; gap: 6px; padding: 11px 20px;
    border: 1px solid rgba(139, 92, 246, 0.35); border-radius: 10px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(99, 102, 241, 0.05));
    color: #8b5cf6; font-size: 14px; font-weight: 600; cursor: pointer;
    transition: all .25s; white-space: nowrap;
}
.btn-ai-continue:hover { background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(99, 102, 241, 0.12)); border-color: rgba(139, 92, 246, 0.6); box-shadow: 0 0 16px rgba(139, 92, 246, 0.15); transform: translateY(-1px); }
.btn-ai-continue:active { transform: scale(.97); }

/* 删除章节 - 淡红危险 */
.btn-delete-chapter {
    display: inline-flex; align-items: center; gap: 6px; padding: 11px 20px;
    border: 1px solid rgba(239, 68, 68, 0.25); border-radius: 10px;
    background: rgba(239, 68, 68, 0.04); color: #ef4444;
    font-size: 14px; font-weight: 500; cursor: pointer;
    transition: all .25s; white-space: nowrap;
}
.btn-delete-chapter:hover { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.5); box-shadow: 0 0 12px rgba(239, 68, 68, 0.1); }
.btn-delete-chapter:active { transform: scale(.97); }

/* 返回 - 幽灵按钮 */
.btn-ghost {
    display: inline-flex; align-items: center; gap: 5px; padding: 11px 22px;
    border: 1px solid var(--separator); border-radius: 10px; background: transparent;
    color: var(--text-secondary); font-size: 14px; font-weight: 500; cursor: pointer;
    transition: all .25s; white-space: nowrap;
}
.btn-ghost:hover { background: var(--bg-grouped); border-color: var(--text-tertiary); color: var(--text-primary); }
.btn-ghost:active { transform: scale(.97); }

/* 保存 - 渐变主色 */
.btn-save-chapter {
    display: inline-flex; align-items: center; gap: 6px; padding: 11px 26px;
    border: none; border-radius: 10px;
    background: var(--accent-gradient); color: #fff;
    font-size: 14px; font-weight: 600; cursor: pointer;
    transition: all .25s; white-space: nowrap;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
}
.btn-save-chapter:hover { box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4); transform: translateY(-1px); filter: brightness(1.08); }
.btn-save-chapter:active { transform: scale(.97); filter: brightness(1); }

/* 移动端：按钮双行排列 */
@media (max-width: 480px) {
    .chapter-edit-footer { gap: 8px; }
    .chapter-edit-footer-right { width: 100%; margin-left: 0; }
    .btn-ai-continue, .btn-delete-chapter { flex: 1; justify-content: center; padding: 12px 14px; font-size: 13px; }
    .chapter-edit-footer-right { flex: 1; }
    .btn-ghost { flex: 1; justify-content: center; padding: 12px 14px; font-size: 13px; }
    .btn-save-chapter { flex: 1.4; justify-content: center; padding: 12px 14px; font-size: 13px; }
}

.skill-sheet, .outline-sheet, .memo-sheet, .chapter-edit-sheet, .character-sheet { max-width: 560px; max-height: 85vh; }

/* 确认弹窗 */
.modal-dialog {
    position: relative; z-index: 1; width: 280px;
    background: var(--glass-bg-heavy);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-radius: var(--radius-md); text-align: center;
    padding: var(--space-lg) var(--space-md) 0;
    transform: scale(0.8); opacity: 0;
    transition: all var(--duration-normal) var(--ease-spring);
}
.modal-overlay.visible .modal-dialog { transform: scale(1); opacity: 1; }
.modal-dialog-title { font-size: 17px; font-weight: 600; margin-bottom: var(--space-xs); }
.modal-dialog-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: var(--space-lg); }
.modal-dialog-actions { display: flex; border-top: 0.5px solid var(--separator); }
.btn-modal-cancel, .btn-modal-confirm { flex: 1; padding: 12px; font-size: 17px; transition: background var(--duration-fast); }
.btn-modal-cancel { color: var(--accent); font-weight: 400; border-right: 0.5px solid var(--separator); border-radius: 0 0 0 var(--radius-md); }
.btn-modal-confirm { color: var(--red); font-weight: 600; border-radius: 0 0 var(--radius-md) 0; }
.btn-modal-cancel:hover, .btn-modal-confirm:hover { background: var(--bg-grouped); }

/* ========== 写作技能 ========== */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.3px; }
.form-input {
    width: 100%; padding: 12px 14px; background: var(--bg-grouped);
    border: 1px solid var(--separator); border-radius: var(--radius-sm);
    font-size: 16px; outline: none; transition: all var(--duration-fast);
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1); background: var(--bg-secondary); }
.form-textarea {
    width: 100%; padding: 12px 14px; background: var(--bg-grouped);
    border: 1px solid var(--separator); border-radius: var(--radius-sm);
    font-size: 14px; outline: none; resize: vertical; min-height: 80px;
    line-height: 1.5; transition: all var(--duration-fast); font-family: var(--font-sans);
}
.form-textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1); background: var(--bg-secondary); }
.form-hint { font-size: 12px; color: var(--text-tertiary); margin-top: 2px; }
.form-row { display: flex; gap: var(--space-sm); }
.form-row .form-group { flex: 1; }
.input-with-action { position: relative; }
.input-with-action .form-input { padding-right: 44px; }
.input-with-action .btn-icon-sm { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); }
.input-with-hint { display: flex; flex-direction: column; }

/* 范围滑块 */
.range-with-value { display: flex; align-items: center; gap: var(--space-sm); }
.form-range { flex: 1; -webkit-appearance: none; appearance: none; height: 6px; background: var(--bg-grouped); border-radius: 3px; outline: none; }
.form-range::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: var(--shadow-sm); }
.range-value { font-size: 14px; font-weight: 600; color: var(--accent); min-width: 32px; text-align: center; }

/* 开关 */
.toggle-row { display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
.toggle-label { font-size: 14px; color: var(--text-primary); }
.toggle-switch { position: relative; display: inline-block; width: 48px; height: 28px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; inset: 0; background: var(--separator-opaque);
    border-radius: 14px; transition: background var(--duration-fast);
}
.toggle-slider::before {
    content: ''; position: absolute; width: 22px; height: 22px; left: 3px; bottom: 3px;
    background: white; border-radius: 50%; transition: transform var(--duration-fast);
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

.test-result {
    padding: 10px 14px; border-radius: var(--radius-xs);
    font-size: 14px; font-weight: 500; text-align: center;
    animation: fadeIn var(--duration-fast);
}
.test-result.success { background: rgba(52, 199, 89, 0.1); color: var(--green); }
.test-result.error { background: var(--red-light); color: var(--red); }

/* ========== Toast ========== */
.toast-container {
    position: fixed; top: calc(var(--safe-top) + 16px); left: 50%;
    transform: translateX(-50%); z-index: 300;
    display: flex; flex-direction: column; gap: var(--space-sm); pointer-events: none;
}
.toast {
    padding: 12px 20px; background: var(--glass-bg-heavy);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    backdrop-filter: saturate(180%) blur(20px);
    border-radius: var(--radius-full); font-size: 14px; font-weight: 500;
    box-shadow: var(--shadow-lg); border: 0.5px solid var(--glass-border);
    white-space: nowrap; animation: toastIn var(--duration-normal) var(--ease-spring) both;
    pointer-events: auto;
}
.toast.removing { animation: toastOut var(--duration-fast) var(--ease-smooth) both; }

/* ========== 表单 ========== */
.skill-search { display: flex; align-items: center; gap: var(--space-sm); background: var(--bg-grouped); border-radius: var(--radius-sm); padding: 8px 14px; border: 1px solid var(--separator); }
.skill-search i { color: var(--text-tertiary); font-size: 16px; }
.skill-search-input { flex: 1; border: none; background: none; outline: none; font-size: 14px; color: var(--text-primary); }
.skill-search-input::placeholder { color: var(--text-tertiary); }

.skill-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); max-height: 300px; overflow-y: auto; }
.skill-card {
    padding: 14px; border-radius: var(--radius-sm); cursor: pointer;
    border: 2px solid var(--separator); transition: all var(--duration-fast);
    background: var(--bg-secondary);
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.skill-card.selected { border-color: var(--accent); background: var(--accent-soft); }
.skill-card-icon { font-size: 22px; margin-bottom: 6px; }
.skill-card-name { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.skill-card-desc { font-size: 11px; color: var(--text-tertiary); line-height: 1.3; }
@media (min-width: 480px) { .skill-grid { grid-template-columns: repeat(3, 1fr); } }

/* 人设卡片 */
.persona-divider { height: 1px; background: var(--separator); margin: var(--space-md) 0; }
.prompt-section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.prompt-actions { display: flex; align-items: center; justify-content: space-between; margin-top: 8px; }
.prompt-char-count { font-size: 12px; color: var(--text-tertiary); }

/* ========== 新书启航 ========== */
.genre-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
    padding: 6px 14px; border-radius: var(--radius-full); font-size: 13px;
    font-weight: 500; color: var(--text-secondary); background: var(--bg-grouped);
    border: 1px solid var(--separator); transition: all var(--duration-fast);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.selected { background: var(--accent); color: white; border-color: var(--accent); }

.framework-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
.framework-card {
    padding: 14px; border-radius: var(--radius-sm); text-align: center;
    cursor: pointer; border: 2px solid var(--separator); transition: all var(--duration-fast);
    font-size: 13px; font-weight: 500; color: var(--text-secondary);
}
.framework-card i { font-size: 24px; display: block; margin-bottom: 6px; color: var(--accent); }
.framework-card:hover { border-color: var(--accent); }
.framework-card.selected { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }

/* ========== 大纲 ========== */
.outline-content { display: flex; flex-direction: column; gap: var(--space-sm); }
.outline-volume {
    border: 1px solid var(--separator); border-radius: var(--radius-sm);
    overflow: hidden;
}
.outline-volume-header {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 10px 14px; background: var(--bg-grouped); cursor: pointer;
    font-size: 14px; font-weight: 600; color: var(--text-primary);
}
.outline-volume-header i { font-size: 16px; transition: transform var(--duration-fast); }
.outline-volume-header.expanded i { transform: rotate(90deg); }
.outline-volume-body { padding: 0 14px 10px; display: none; }
.outline-volume-body.visible { display: block; }
.outline-chapter-item {
    display: flex; align-items: center; gap: var(--space-sm);
    padding: 6px 0; font-size: 13px; color: var(--text-secondary);
}
.outline-chapter-item input { flex: 1; border: none; background: none; outline: none; font-size: 13px; color: var(--text-primary); padding: 4px 8px; border-radius: var(--radius-xs); }
.outline-chapter-item input:focus { background: var(--bg-grouped); }
.outline-chapter-item .btn-icon-xs { color: var(--text-tertiary); }

/* ========== 人物管理 ========== */
.character-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.character-card {
    display: flex; gap: var(--space-md); padding: 14px; border-radius: var(--radius-sm);
    border: 1px solid var(--separator); cursor: pointer; transition: all var(--duration-fast);
}
.character-card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.character-avatar {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: var(--accent-gradient); display: flex; align-items: center;
    justify-content: center; color: white; font-size: 20px; flex-shrink: 0;
}
.character-info { flex: 1; min-width: 0; }
.character-name { font-size: 15px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.character-brief { font-size: 12px; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ========== 备忘录 ========== */
.memo-list { display: flex; flex-direction: column; gap: var(--space-sm); max-height: 60vh; overflow-y: auto; }
.memo-card {
    padding: 14px; border-radius: var(--radius-sm); border: 1px solid var(--separator);
    cursor: pointer; transition: all var(--duration-fast);
}
.memo-card:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.memo-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.memo-card-title { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.memo-card-date { font-size: 11px; color: var(--text-tertiary); }
.memo-card-preview { font-size: 13px; color: var(--text-secondary); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.memo-card-tags { display: flex; gap: 4px; margin-top: 8px; flex-wrap: wrap; }
.memo-tag {
    padding: 2px 8px; border-radius: var(--radius-full); font-size: 11px;
    font-weight: 500; background: var(--accent-soft); color: var(--accent);
}

/* ========== 代码块 ========== */
.code-block-wrapper {
    margin: 8px 0; border-radius: var(--radius-sm); overflow: hidden;
    border: 0.5px solid var(--separator); background: var(--bg-grouped);
}
.code-block-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 6px 12px; background: var(--bg-tertiary);
    border-bottom: 0.5px solid var(--separator); font-size: 12px;
}
.code-lang { color: var(--text-tertiary); font-weight: 600; text-transform: lowercase; }
.code-copy-btn {
    font-size: 12px; padding: 2px 10px; border-radius: var(--radius-xs);
    color: var(--accent); font-weight: 500; background: var(--accent-light);
    transition: all var(--duration-fast); cursor: pointer;
}
.code-copy-btn:hover { background: var(--accent); color: white; }
.code-copy-btn:active { transform: scale(0.95); }
.code-block-wrapper pre { margin: 0; padding: 12px; overflow-x: auto; font-family: var(--font-mono); font-size: 13px; line-height: 1.5; }

/* Markdown 通用 */
.message-bubble p { margin: 0; }
.message-bubble p + p { margin-top: 8px; }
.message-bubble pre { background: var(--bg-grouped); border-radius: var(--radius-xs); padding: 12px; overflow-x: auto; margin: 8px 0; font-family: var(--font-mono); font-size: 13px; line-height: 1.5; }
.message-user .message-bubble pre { background: rgba(255, 255, 255, 0.15); }
.message-bubble code { font-family: var(--font-mono); font-size: 0.9em; padding: 2px 6px; border-radius: 4px; background: var(--bg-grouped); }
.message-user .message-bubble code { background: rgba(255, 255, 255, 0.15); }
.message-bubble pre code { padding: 0; background: none; }
.message-bubble ul, .message-bubble ol { padding-left: 20px; margin: 4px 0; }
.message-bubble li { margin: 2px 0; }
.message-bubble strong { font-weight: 600; }
.message-bubble blockquote { border-left: 3px solid var(--accent); padding-left: 12px; margin: 8px 0; color: var(--text-secondary); }


/* ============================================
   工坊 / 书架 / 我的 页面组件 (v2)
   ============================================ */

/* ---- 工坊区块 ---- */
.workshop-section { margin-bottom: var(--space-lg); }
.workshop-section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-sm); }
.workshop-section-title { font-size: 16px; font-weight: 700; color: var(--text-primary); display: flex; align-items: center; gap: 6px; }
.workshop-section-title i { color: var(--accent); font-size: 18px; }
.workshop-section-desc { font-size: 13px; color: var(--text-tertiary); margin-bottom: var(--space-sm); }

/* ---- 技能管理列表 ---- */
.workshop-skill-list { display: flex; flex-direction: column; gap: 6px; }
.workshop-skill-item {
    display: flex; align-items: center; gap: var(--space-sm); padding: 10px 12px;
    border-radius: var(--radius-sm); border: 1px solid var(--separator);
    cursor: pointer; transition: all .2s; background: var(--bg-secondary);
}
.workshop-skill-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.workshop-skill-item.active { border-color: var(--accent); background: var(--accent-soft); }
.workshop-skill-item-icon {
    width: 36px; height: 36px; border-radius: var(--radius-xs);
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 16px; flex-shrink: 0;
}
.workshop-skill-item-info { flex: 1; min-width: 0; }
.workshop-skill-item-name { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.workshop-skill-item-desc { font-size: 11px; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.workshop-skill-item-actions { display: flex; gap: 2px; opacity: 0; transition: opacity .2s; }
.workshop-skill-item:hover .workshop-skill-item-actions { opacity: 1; }
.workshop-skill-item-badge {
    font-size: 10px; padding: 2px 8px; border-radius: var(--radius-full);
    background: var(--bg-grouped); color: var(--text-tertiary); flex-shrink: 0;
}
.workshop-skill-item-badge.custom { background: var(--accent-soft); color: var(--accent); }

/* ---- 蒸馏 ---- */
.distill-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
@media (min-width: 480px) { .distill-grid { grid-template-columns: repeat(3, 1fr); } }
.distill-card {
    padding: 16px 12px; border-radius: var(--radius-sm); cursor: pointer;
    border: 1px solid var(--separator); text-align: center;
    transition: all .2s; background: var(--bg-secondary);
}
.distill-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.distill-card:active { transform: scale(.97); }
.distill-card.distilling { border-color: var(--accent); animation: pulseBorder 1.5s ease-in-out infinite; }
.distill-card-icon { font-size: 28px; margin-bottom: 6px; }
.distill-card-name { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.distill-card-desc { font-size: 11px; color: var(--text-tertiary); line-height: 1.3; }

@keyframes pulseBorder { 0%,100% { border-color: var(--accent); } 50% { border-color: var(--text-tertiary); } }

.distill-result { margin-top: var(--space-md); }
.distill-result-content {
    font-size: 14px; line-height: 1.7; white-space: pre-wrap; word-break: break-word;
    max-height: 60vh; overflow-y: auto; padding: 12px;
    background: var(--bg-grouped); border-radius: var(--radius-sm);
}
.distill-sheet { max-width: 600px; }

/* ---- 快速操作 ---- */
.quick-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
.quick-action-btn {
    display: flex; flex-direction: column; align-items: center; gap: 6px;
    padding: 16px 8px; border-radius: var(--radius-sm); border: 1px solid var(--separator);
    transition: all .2s; background: var(--bg-secondary); font-size: 12px;
    font-weight: 500; color: var(--text-secondary);
}
.quick-action-btn i { font-size: 22px; color: var(--accent); }
.quick-action-btn:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }
.quick-action-btn:active { transform: scale(.97); }

/* ---- 写作统计 ---- */
.stats-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
@media (min-width: 480px) { .stats-row { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
    padding: 14px; border-radius: var(--radius-sm); text-align: center;
    border: 1px solid var(--separator); background: var(--bg-secondary);
}
.stat-value { font-size: 28px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

/* ---- 书架作品列表 ---- */
.bookshelf-project-list { display: flex; flex-direction: column; gap: 6px; }
.bookshelf-project-item {
    display: flex; align-items: center; gap: var(--space-sm); padding: 12px;
    border-radius: var(--radius-sm); border: 1px solid var(--separator);
    cursor: pointer; transition: all .2s; background: var(--bg-secondary);
}
.bookshelf-project-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.bookshelf-project-item.active { border-color: var(--accent); background: var(--accent-soft); }
.bookshelf-project-item-icon {
    width: 40px; height: 40px; border-radius: var(--radius-xs);
    background: var(--accent-gradient); display: flex; align-items: center;
    justify-content: center; color: white; font-size: 18px; flex-shrink: 0;
}
.bookshelf-project-item-info { flex: 1; min-width: 0; }
.bookshelf-project-item-title { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.bookshelf-project-item-meta { font-size: 11px; color: var(--text-tertiary); }
.bookshelf-project-item-actions { display: flex; gap: 2px; opacity: 0.6; }
.bookshelf-project-item:hover .bookshelf-project-item-actions { opacity: 1; }

/* ---- 书架章节列表 ---- */
.bookshelf-chapter-list { display: flex; flex-direction: column; gap: 4px; max-height: 300px; overflow-y: auto; }
.bookshelf-chapter-item {
    display: flex; align-items: center; gap: var(--space-sm); padding: 8px 10px;
    border-radius: var(--radius-xs); cursor: pointer; transition: background .15s;
    font-size: 13px; color: var(--text-secondary);
}
.bookshelf-chapter-item:hover { background: var(--bg-grouped); }
.bookshelf-chapter-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 500; }
.bookshelf-chapter-item i { font-size: 14px; flex-shrink: 0; }
.bookshelf-chapter-item-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bookshelf-chapter-item-status { font-size: 10px; padding: 1px 6px; border-radius: var(--radius-full); flex-shrink: 0; }
.bookshelf-chapter-item-status.draft { background: var(--bg-grouped); color: var(--text-tertiary); }
.bookshelf-chapter-item-status.done { background: rgba(52,199,89,0.15); color: var(--green); }
.bookshelf-chapter-item-actions { display: flex; gap: 2px; opacity: 0.6; }
.bookshelf-chapter-item:hover .bookshelf-chapter-item-actions { opacity: 1; }

/* ---- 小修复 ---- */
.btn-icon-sm { font-size: 16px; }

/* ============================================
   v3 新增组件样式
   ============================================ */

/* ---- 消息保存到章节按钮 ---- */
.msg-save-btn {
    display: inline-flex; align-items: center; justify-content: center;
    width: 28px; height: 28px; border-radius: 50%;
    background: var(--accent-soft); color: var(--accent);
    font-size: 14px; margin-top: 6px; opacity: 0.45;
    transition: all .2s; cursor: pointer;
}
.msg-save-btn:hover { background: var(--accent); color: white; opacity: 1; transform: scale(1.1); }
.msg-save-btn:active { transform: scale(.92); }

/* ---- 保存到章节弹窗 ---- */
.save-chapter-list { display: flex; flex-direction: column; gap: 6px; max-height: 40vh; overflow-y: auto; margin-bottom: 12px; }
.save-chapter-item {
    display: flex; align-items: center; gap: var(--space-sm); padding: 10px 12px;
    border-radius: var(--radius-sm); border: 1px solid var(--separator);
    cursor: pointer; transition: all .2s; background: var(--bg-secondary);
}
.save-chapter-item:hover { border-color: var(--accent); background: var(--accent-soft); }
.save-chapter-item:active { transform: scale(.98); }
.save-chapter-item i { font-size: 16px; color: var(--accent); flex-shrink: 0; }
.save-chapter-item-name { flex: 1; font-size: 14px; font-weight: 500; color: var(--text-primary); }
.save-chapter-item-meta { font-size: 11px; color: var(--text-tertiary); flex-shrink: 0; }
.save-chapter-item-badge { font-size: 10px; padding: 1px 6px; border-radius: var(--radius-full); flex-shrink: 0; }
.save-chapter-item-badge.draft { background: var(--bg-grouped); color: var(--text-tertiary); }
.save-chapter-item-badge.done { background: rgba(52,199,89,0.15); color: var(--green); }
.save-chapter-new-row { display: flex; gap: var(--space-sm); align-items: center; }

/* ---- AI续写选项 ---- */
.ai-continue-option {
    display: flex; align-items: center; gap: 12px; padding: 14px 16px;
    border-radius: var(--radius-sm); border: 1px solid var(--separator);
    background: var(--bg-secondary); cursor: pointer; transition: all .2s;
    text-align: left; width: 100%;
}
.ai-continue-option:hover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.ai-continue-option:active { transform: scale(.98); }
.ai-continue-option i { font-size: 22px; color: var(--accent); flex-shrink: 0; }
.ai-continue-option div { display: flex; flex-direction: column; gap: 2px; }
.ai-continue-option strong { font-size: 14px; color: var(--text-primary); }

/* ---- 新手引导 ---- */
.onboarding-sheet { max-width: 420px; padding-top: var(--space-lg); }
.onboarding-progress { display: flex; justify-content: center; gap: 8px; margin-bottom: var(--space-lg); }
.onboarding-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--separator-opaque); transition: all .3s; }
.onboarding-dot.active { background: var(--accent); width: 24px; border-radius: 4px; }
.onboarding-slides { position: relative; overflow: hidden; }
.onboarding-slide { display: none; flex-direction: column; align-items: center; text-align: center; padding: 0 var(--space-sm); animation: fadeInUp .35s var(--ease-ios); }
.onboarding-slide.active { display: flex; }
.onboarding-slide-icon { width: 64px; height: 64px; border-radius: var(--radius-lg); background: var(--accent-gradient); display: flex; align-items: center; justify-content: center; color: white; font-size: 28px; margin-bottom: var(--space-md); box-shadow: 0 8px 24px rgba(0,122,255,.3); }
.onboarding-slide-title { font-size: 20px; font-weight: 700; margin-bottom: var(--space-xs); }
.onboarding-slide-desc { font-size: 14px; color: var(--text-secondary); margin-bottom: var(--space-lg); max-width: 300px; line-height: 1.5; }
.onboarding-form { width: 100%; display: flex; flex-direction: column; gap: var(--space-sm); }
.onboarding-genre-chips { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.onboarding-tips { display: flex; flex-direction: column; gap: 10px; width: 100%; text-align: left; }
.onboarding-tip { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--bg-grouped); border-radius: var(--radius-sm); font-size: 13px; color: var(--text-secondary); }
.onboarding-tip i { color: var(--accent); font-size: 18px; flex-shrink: 0; }
.onboarding-footer { display: flex; justify-content: center; gap: var(--space-sm); margin-top: var(--space-lg); }

/* ---- 欢迎页快速开始 ---- */
.welcome-quickstart { margin-top: var(--space-lg); display: flex; flex-direction: column; align-items: center; gap: var(--space-sm); }
.welcome-quickstart-label { font-size: 12px; color: var(--text-tertiary); }
.welcome-quickstart.hidden { display: none; }

/* ---- 数据管理按钮 ---- */
.data-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
@media (max-width: 480px) { .data-actions { grid-template-columns: 1fr; } }

/* ---- 大纲面板 ---- */
.outline-volume { margin-bottom: var(--space-sm); border: 1px solid var(--separator); border-radius: var(--radius-sm); overflow: hidden; }
.outline-volume-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; background: var(--bg-grouped); gap: 8px; }
.outline-volume-title { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.outline-volume-actions { display: flex; gap: 2px; }
.btn-icon-xs { width: 26px; height: 26px; font-size: 14px; border-radius: var(--radius-sm); display: inline-flex; align-items: center; justify-content: center; background: var(--bg-secondary); color: var(--text-secondary); border: none; cursor: pointer; transition: all .2s; }
.btn-icon-xs:hover { background: var(--accent-soft); color: var(--accent); }
.outline-chapter-list { display: flex; flex-direction: column; }
.outline-chapter-item { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--separator); font-size: 13px; color: var(--text-secondary); }
.outline-chapter-item:last-child { border-bottom: none; }
.outline-chapter-item i { color: var(--text-tertiary); font-size: 14px; flex-shrink: 0; }
.outline-chapter-item span { flex: 1; }
.outline-chapter-item .btn-icon-xs { opacity: 0; transition: opacity .2s; }
.outline-chapter-item:hover .btn-icon-xs { opacity: 1; }

/* ---- 蒸馏加载动画 ---- */
.distill-loading { display: flex; align-items: center; gap: 10px; padding: 16px; color: var(--text-secondary); font-size: 14px; background: var(--bg-grouped); border-radius: var(--radius-sm); }
.spinner { width: 20px; height: 20px; border: 2px solid var(--separator); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
.distill-card-result { background: var(--bg-grouped); border-radius: var(--radius-sm); padding: 14px; }
.distill-card-result h4 { margin: 0 0 8px; font-size: 14px; color: var(--accent); }
.distill-content { font-size: 13px; line-height: 1.6; color: var(--text-primary); max-height: 300px; overflow-y: auto; }

/* ---- 移动端消息保存按钮更大更明显 ---- */
@media (max-width: 768px) { .msg-save-btn { opacity: 0.6; width: 32px; height: 32px; font-size: 18px; } }

/* ---- 进度提示 ---- */
.progress-overlay { position: fixed; inset: 0; z-index: 9999; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,.4); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.progress-overlay.hidden { display: none; }
.progress-card { background: var(--bg-primary); border-radius: var(--radius-lg); padding: 28px 32px; min-width: 240px; max-width: 300px; text-align: center; box-shadow: var(--shadow-lg); display: flex; flex-direction: column; align-items: center; gap: 12px; }
.progress-spinner { width: 36px; height: 36px; border: 3px solid var(--separator); border-top-color: var(--accent); border-radius: 50%; animation: spin .7s linear infinite; }
.progress-text { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.progress-bar-track { width: 100%; height: 6px; background: var(--bg-grouped); border-radius: 3px; overflow: hidden; }
.progress-bar-fill { height: 100%; width: 0%; background: var(--accent-gradient); border-radius: 3px; transition: width .3s ease; }
.progress-percent { font-size: 13px; color: var(--text-tertiary); font-variant-numeric: tabular-nums; }
@keyframes spin { to { transform: rotate(360deg); } }