/**
 * Guide Character Styles - 引導角色組件樣式
 *
 * 包含：
 * - 主容器和響應式佈局
 * - CharacterAvatar 頭像樣式
 * - SpeechBubble 對話泡泡樣式
 * - ChatDialog 對話視窗樣式
 * - 動畫效果
 *
 * @author Claude Code
 * @date 2025-12-22
 */

/* ==================== 主容器 ==================== */
.guide-character {
    position: fixed;
    z-index: var(--z-dropdown);
    pointer-events: none; /* 允許點擊穿透到下層元素 */
}

.guide-character__wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    pointer-events: auto; /* 組件本身可點擊 */
}

/* ==================== CharacterAvatar 頭像 ==================== */
.character-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--duration-slow) var(--ease-out);
}

.character-avatar img {
    display: block;
    object-fit: contain;
}

/* 尺寸變體 */
.character-avatar--small img {
    width: 48px;
    height: auto;
}

.character-avatar--medium img {
    width: 80px;
    height: auto;
}

.character-avatar--large img {
    width: 432px;
    height: auto;
}

/* 收合態 - 圓形頭像 */
.character-avatar--collapsed {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--primary, #FF6B35);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
}

.character-avatar--collapsed img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.character-avatar--collapsed:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* FAB 浮動按鈕 */
.character-avatar--fab {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: var(--primary, #FF6B35);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5px;
}

.character-avatar--fab img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ==================== SpeechBubble 對話泡泡 ==================== */
.speech-bubble {
    position: relative;
    padding: 12px 20px;
    background: var(--neutral-800);
    border-radius: var(--btn-radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateY(10px);
    transition: var(--hover-transition);
    pointer-events: none;
    white-space: nowrap;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.speech-bubble--visible,
.speech-bubble[data-visible="true"] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* 泡泡箭頭（偏左指向角色頭部） */
.speech-bubble__arrow {
    position: absolute;
    bottom: -6px;
    left: 35%;
    width: 12px;
    height: 12px;
    background: var(--neutral-800);
    transform: rotate(45deg);
}


/* 泡泡內容 */
.speech-bubble__content {
    text-align: center;
}

.speech-bubble__text {
    margin: 0;
    font-size: var(--text-sm);
    line-height: 1.5;
    color: #ffffff;
    font-weight: 500;
}

.speech-bubble__subtext {
    margin: 6px 0 0;
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.7);
}

/* 互動按鈕 */
.speech-bubble__action {
    margin-top: 12px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--hover-transition);
}

.speech-bubble__action--primary {
    background: var(--primary, #FF6B35);
    color: white;
}

.speech-bubble__action--primary:hover {
    background: var(--primary-dark, #E55A2B);
}

.speech-bubble__action--secondary {
    background: var(--bg-secondary, #F3F4F6);
    color: var(--text-primary, #1F2937);
}

.speech-bubble__action--secondary:hover {
    background: var(--border, #E5E7EB);
}

/* ==================== ChatDialog 對話視窗 ==================== */
.chat-dialog {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 16px;
    width: 360px;
    height: min(70vh, 600px);
    max-height: min(70vh, 600px);
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    transition: var(--hover-transition);
    pointer-events: none;
}

.chat-dialog--visible,
.chat-dialog[data-visible="true"] {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* 標題列 */
.chat-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--primary-100);
    background: var(--primary-50);
}

.chat-dialog__title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary, #1F2937);
}

.chat-dialog__close {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--neutral-400);
    cursor: pointer;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--hover-transition);
}

.chat-dialog__close:hover {
    background: var(--neutral-100);
    color: var(--neutral-600);
}

/* 品牌化標題列 */
.chat-dialog__header--branded {
    padding: 0.875rem 1rem;
    gap: 0.75rem;
}

.chat-dialog__header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
    min-width: 0;
}

.chat-dialog__header-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    object-fit: contain;
    flex-shrink: 0;
    background: var(--primary-50);
    border: 2px solid rgba(255, 107, 53, 0.15);
    padding: 5px;
}

.chat-dialog__header-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.chat-dialog__header--branded .chat-dialog__title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary, #1F2937);
    line-height: 1.3;
}

.chat-dialog__subtitle {
    font-size: var(--text-xs);
    color: var(--text-secondary, #6B7280);
    font-weight: 400;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 訊息區域 */
.chat-dialog__body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background: var(--bg-primary);
}

.chat-dialog__messages {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* ChatEffects scroll-spacer */
.chat-dialog__messages .scroll-spacer {
    flex-shrink: 0;
    transition: height var(--duration-normal) var(--ease-out);
}

/* 單條訊息 */
.chat-message {
    display: flex;
    gap: 10px;
    max-width: 85%;
}

.chat-message--user {
    flex-direction: row-reverse;
    margin-left: auto;
}

.chat-message--assistant {
    margin-right: auto;
}

.chat-message__avatar {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    border: 1px solid var(--neutral-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--warning);
    margin-top: 0.25rem;
}

.chat-message__avatar svg {
    width: 16px;
    height: 16px;
}

/* 注意：主要對話訊息樣式定義在檔案後段「對話訊息樣式」區塊 */

/* 舊版載入指示器（保留向下兼容） */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--primary, #FF6B35);
    border-radius: var(--radius-full);
    animation: typing-bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing-bounce {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* 建議問題 */
.chat-dialog__suggestions {
    margin-top: 1rem;
}

.suggestions-label {
    margin: 0 0 0.5rem;
    font-size: var(--text-xs);
    color: #64748b;
}

.suggestions-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.suggested-question {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 0.875rem;
    background: #f8fafc;
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-2xl);
    font-size: var(--text-xs);
    color: var(--neutral-600);
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--hover-transition);
}

.suggested-question:hover {
    background: rgba(255, 107, 53, 0.05);
    border-color: rgba(255, 107, 53, 0.3);
    color: var(--primary, #FF6B35);
}

/* 輸入區域 */
.chat-dialog__footer {
    padding: 1rem;
    border-top: 1px solid var(--primary-100);
    background: var(--primary-50);
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--neutral-200);
    border-radius: var(--radius-xl);
    padding: 0.5rem 0.75rem;
    transition: border-color var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.chat-input-wrapper:focus-within {
    border-color: var(--primary, #FF6B35);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.chat-dialog__input {
    flex: 1;
    min-height: 20px;
    max-height: 120px;
    border: none;
    outline: none;
    font-size: var(--text-sm);
    line-height: 1.4;
    resize: none;
    background: transparent;
}

.chat-dialog__input::placeholder {
    color: var(--text-tertiary, #9CA3AF);
}

.chat-dialog__send {
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: var(--radius-lg);
    background: var(--primary, #FF6B35);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--hover-transition);
    flex-shrink: 0;
}

.chat-dialog__send:hover:not(:disabled) {
    background: var(--primary-dark, #E55A2B);
    transform: scale(1.05);
}

.chat-dialog__send:disabled {
    background: var(--neutral-200);
    color: var(--neutral-400);
    cursor: not-allowed;
}

/* ==================== 頭像模式佈局 ==================== */
.guide-character__wrapper--avatar-only {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.guide-character__wrapper--avatar-only .guide-character__avatar-area {
    position: relative;
}

.guide-character__wrapper--avatar-only .guide-character__avatar-btn {
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    transition: transform var(--duration-slow) var(--ease-out);
}

.guide-character__wrapper--avatar-only .guide-character__avatar-btn:hover {
    transform: scale(1.05);
}

.guide-character__wrapper--avatar-only .guide-character__bubble-area {
    position: absolute;
    bottom: 80px;
    right: 0;
    margin-bottom: 8px;
}

.guide-character__wrapper--avatar-only .guide-character__dialog-area {
    position: absolute;
    bottom: 80px;
    right: 0;
}

/* ==================== 降級模式（full → avatar 自動切換） ==================== */
/* 箭頭改為靠右下，指向右下方的小圓按鈕 */
.guide-character--downgraded .speech-bubble__arrow {
    left: auto;
    right: 20px;
}

/* ==================== 桌面版佈局 ==================== */
.guide-character__wrapper--desktop {
    position: relative;
}

.guide-character__wrapper--desktop .guide-character__bubble-area {
    position: absolute;
    bottom: 100%; /* 在圖片邊緣正上方 */
    left: 60%; /* 稍微往右偏移 */
    transform: translateX(-50%);
    margin-bottom: 20px;
}

.guide-character__wrapper--desktop .guide-character__dialog-area {
    position: absolute;
    bottom: 380px;
    right: 100px;
}

.guide-character__wrapper--desktop .guide-character__avatar-area {
    position: relative;
    cursor: pointer;
    transition: transform var(--duration-slow) var(--ease-out);
    transform-origin: center bottom;
}

.guide-character__wrapper--desktop .guide-character__avatar-area:hover {
    transform: scale(1.02);
}

/* ==================== 平板版佈局 ==================== */
.guide-character__wrapper--tablet {
    position: relative;
}

.guide-character__toggle {
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
}

.guide-character__wrapper--tablet .guide-character__bubble-area {
    position: absolute;
    top: 50%;
    right: 80px;
    transform: translateY(-50%);
}

.guide-character__wrapper--tablet .guide-character__dialog-area {
    position: absolute;
    bottom: 80px;
    right: 0;
}

/* 平板版泡泡箭頭改為右側 */
.guide-character__wrapper--tablet .speech-bubble {
    white-space: nowrap;
}

.guide-character__wrapper--tablet .speech-bubble__arrow {
    left: auto;
    right: -6px;
    bottom: auto;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

/* 平板收合時隱藏對話區域 */
.guide-character:not(.guide-character--expanded) .guide-character__wrapper--tablet .guide-character__dialog-area {
    display: none;
}

/* ==================== 手機版佈局 ==================== */
.guide-character__wrapper--mobile {
    position: relative;
}

.guide-character__fab {
    width: 56px;
    height: 56px;
    border: none;
    border-radius: var(--radius-full);
    background: var(--primary, #FF6B35);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    padding: 0;
    overflow: hidden;
    transition: var(--hover-transition);
}

.guide-character__fab:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.guide-character__fab:active {
    transform: scale(0.95);
}

/* 手機版底部抽屜 */
.guide-character__drawer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: 85vh;
    background: var(--bg-primary);
    border-top-left-radius: var(--radius-2xl);
    border-top-right-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out);
    z-index: calc(var(--z-dropdown) + 1);
}

.guide-character--chatting .guide-character__drawer {
    transform: translateY(0);
}

.guide-character__drawer .chat-dialog {
    position: static;
    width: 100%;
    height: 85vh;
    max-height: 85vh;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    transform: none;
    pointer-events: auto;
}

/* ==================== 響應式調整 ==================== */
@media (max-width: 1024px) {
    .character-avatar--large img {
        width: 288px;
    }

    .guide-character__wrapper--desktop .guide-character__bubble-area,
    .guide-character__wrapper--desktop .guide-character__dialog-area {
        bottom: 260px;
        right: 60px;
    }

    /* 平板：對話框加高 */
    .chat-dialog {
        height: 70vh;
        max-height: 80vh;
    }
}

@media (max-width: 768px) {
    .guide-character {
        bottom: 20px !important;
        right: 20px !important;
    }

    /* 手機版角色圖片縮小 */
    .character-avatar--large img {
        width: 200px;
    }

    /* 手機：對話框加高 + 全寬 */
    .chat-dialog {
        width: 100%;
        height: 85vh;
        max-height: 85vh;
    }
}

/* ==================== 縮放變體 ==================== */
/* 67% 縮放 (用於首頁) */
.guide-character--scale-67 .character-avatar--large img {
    width: 288px;
}

.guide-character--scale-67 .guide-character__wrapper--desktop .guide-character__dialog-area {
    bottom: 250px;
    right: 70px;
}

.guide-character--scale-67 .guide-character__wrapper--desktop .guide-character__bubble-area {
    margin-bottom: 12px;
}

/* 50% 縮放 */
.guide-character--scale-50 .character-avatar--large img {
    width: 216px;
}

.guide-character--scale-50 .guide-character__wrapper--desktop .guide-character__dialog-area {
    bottom: 180px;
    right: 50px;
}

/* ==================== 動畫效果 ==================== */
/* 角色浮動動畫 */
@keyframes character-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

.guide-character--idle .guide-character__avatar-area {
    animation: character-float 3s ease-in-out infinite;
}

/* 入場動畫 */
@keyframes character-enter {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.guide-character {
    animation: character-enter 0.6s ease-out;
}

/* 泡泡彈跳動畫 */
@keyframes bubble-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

.speech-bubble--visible {
    animation: bubble-bounce 0.4s ease-out;
}

/* ==================== 對話訊息樣式 ==================== */
/* 🔧 使用 .chat-dialog__messages 前綴確保不被 chat.css 全域選擇器覆蓋 */

/* 訊息基礎佈局 */
.chat-dialog__messages .message {
    display: flex;
    gap: 0.625rem;
    margin-bottom: 0;
    max-width: 100%;
    flex-direction: row;
    width: auto;
}

/* 用戶訊息 - 靠右對齊，無頭像 */
.chat-dialog__messages .message-user {
    justify-content: flex-end;
    flex-direction: row;
    width: auto;
}

/* 用戶訊息內容 - 品牌色氣泡 */
.chat-dialog__messages .message-user .message-content {
    width: fit-content;
    max-width: 85%;
    font-size: var(--text-sm);
    line-height: 1.6;
    color: #fff;
    background: var(--primary, #FF6B35);
    padding: 0.625rem 0.875rem;
    border-radius: 18px 18px 4px 18px;
    word-wrap: break-word;
}

/* 用戶訊息段落 */
.chat-dialog__messages .message-user .message-content p {
    margin: 0;
}

/* AI 訊息 - 左側對齊 */
.chat-dialog__messages .message-assistant {
    align-items: flex-start;
}

/* AI 頭像 - 白色背景 + 琥珀色圖標 */
.chat-dialog__messages .message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    border: 1px solid var(--neutral-200);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0.25rem;
    color: var(--warning);
    overflow: hidden;
    padding: 2px;
}

.chat-dialog__messages .message-avatar svg {
    width: 16px;
    height: 16px;
}

/* AI 頭像圖片 - 圓形裁切 */
.chat-dialog__messages .message-avatar-img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: contain;
}

/* ThinkingIndicator 頭像佔位 */
.chat-dialog__messages .thinking-avatar-placeholder {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.chat-dialog__messages .thinking-avatar-placeholder.thinking-avatar--active {
    background: var(--bg-primary);
    border: 1px solid var(--neutral-200);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 2px;
    color: var(--warning);
}

.chat-dialog__messages .thinking-avatar-placeholder.thinking-avatar--active img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: contain;
}

.chat-dialog__messages .thinking-avatar-placeholder.thinking-avatar--active svg {
    width: 16px;
    height: 16px;
}

/* AI 訊息內容 - 白色背景 + 邊框氣泡 */
.chat-dialog__messages .message-text {
    max-width: calc(100% - 44px);
    font-size: var(--text-sm);
    line-height: 1.6;
    color: #374151;
    word-wrap: break-word;
    background: var(--bg-primary);
    border: 1px solid var(--neutral-200);
    padding: 0.625rem 0.875rem;
    border-radius: 4px 18px 18px 18px;
}

/* ==================== 動態建議問題（AI 回覆後，獨立區塊） ==================== */
.chat-dialog__suggestions-dynamic {
    margin-top: 0.25rem;
    padding-left: calc(32px + 0.625rem); /* 對齊 AI 泡泡（跳過頭像 32px + gap） */
}

.chat-dialog__suggestions-header {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-tertiary, #6B7280);
    font-weight: 500;
}

.chat-dialog__suggestions-header svg {
    stroke: var(--primary, #FF6B35);
    flex-shrink: 0;
}

.chat-dialog__suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.chat-dialog__suggest-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    background: transparent;
    border: 1px solid var(--primary, #FF6B35);
    border-radius: var(--radius-2xl, 9999px);
    font-size: var(--text-xs, 0.75rem);
    color: var(--primary, #FF6B35);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    line-height: 1.4;
    max-width: 100%;
}

.chat-dialog__suggest-btn:hover {
    background: var(--primary, #FF6B35);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.chat-dialog__suggest-btn:active {
    transform: translateY(0);
}

.chat-dialog__suggest-btn svg {
    flex-shrink: 0;
}

.chat-dialog__suggest-btn span {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* ==================== AI 訊息 Markdown 渲染樣式 ==================== */

/* 隱藏 AI 回覆中的 <hr> 分隔線（LLM 回覆的 --- 不需要顯示） */
.chat-dialog__messages .message-text hr {
    display: none;
}

.chat-dialog__messages .message-text p {
    margin: 0.5rem 0;
}

.chat-dialog__messages .message-text p:first-child {
    margin-top: 0;
}

.chat-dialog__messages .message-text p:last-child {
    margin-bottom: 0;
}

/* 無序列表 */
.chat-dialog__messages .message-text ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    list-style-type: disc;
}

/* 有序列表 - 數字格式 1. 2. 3. */
.chat-dialog__messages .message-text ol {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    list-style-type: decimal;
}

.chat-dialog__messages .message-text li {
    margin: 0.25rem 0;
}

/* 巢狀列表樣式 */
.chat-dialog__messages .message-text ul ul {
    list-style-type: circle;
}

.chat-dialog__messages .message-text ul ul ul {
    list-style-type: square;
}

.chat-dialog__messages .message-text ol ol {
    list-style-type: lower-alpha;
}

.chat-dialog__messages .message-text ol ol ol {
    list-style-type: lower-roman;
}

/* 行內代碼 */
.chat-dialog__messages .message-text code {
    background: rgba(0, 0, 0, 0.05);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-family: 'SF Mono', 'Monaco', monospace;
}

/* 代碼塊 */
.chat-dialog__messages .message-text pre {
    background: var(--neutral-800);
    color: var(--neutral-200);
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: 0.5rem 0;
}

.chat-dialog__messages .message-text pre code {
    background: transparent;
    padding: 0;
}

.chat-dialog__messages .message-text strong {
    font-weight: 600;
}

.chat-dialog__messages .message-text blockquote {
    margin: 0.5rem 0;
    padding-left: 0.75rem;
    border-left: 3px solid var(--neutral-200);
    color: #64748b;
}

.chat-dialog__messages .message-text a {
    color: var(--primary, #FF6B35);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.chat-dialog__messages .message-text a:hover {
    color: var(--primary-dark, #E55A2B);
}

/* 表格樣式 */
.chat-dialog__messages .message-text table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0;
    font-size: 0.8125rem;
}

.chat-dialog__messages .message-text th,
.chat-dialog__messages .message-text td {
    border: 1px solid var(--neutral-200);
    padding: 0.5rem;
    text-align: left;
}

.chat-dialog__messages .message-text th {
    background: #f8fafc;
    font-weight: 600;
}

/* 標題樣式 */
.chat-dialog__messages .message-text h1,
.chat-dialog__messages .message-text h2,
.chat-dialog__messages .message-text h3,
.chat-dialog__messages .message-text h4,
.chat-dialog__messages .message-text h5,
.chat-dialog__messages .message-text h6 {
    margin: 0.75rem 0 0.5rem 0;
    font-weight: 600;
    line-height: 1.4;
}

.chat-dialog__messages .message-text h1:first-child,
.chat-dialog__messages .message-text h2:first-child,
.chat-dialog__messages .message-text h3:first-child {
    margin-top: 0;
}

.chat-dialog__messages .message-text h1 { font-size: var(--text-xl); }
.chat-dialog__messages .message-text h2 { font-size: var(--text-lg); }
.chat-dialog__messages .message-text h3 { font-size: var(--text-base); }
.chat-dialog__messages .message-text h4,
.chat-dialog__messages .message-text h5,
.chat-dialog__messages .message-text h6 { font-size: var(--text-sm); }

/* 分隔線 */
.chat-dialog__messages .message-text hr {
    border: none;
    border-top: 1px solid var(--neutral-200);
    margin: 0.75rem 0;
}

/* 舊版樣式保留向下兼容 */
.chat-message {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.chat-message--user {
    flex-direction: row-reverse;
}

.chat-message__content {
    max-width: 85%;
    padding: 0.875rem 1rem;
    border-radius: var(--radius-2xl);
    font-size: var(--text-sm);
    line-height: 1.6;
    word-wrap: break-word;
}

/* 用戶訊息 - 品牌色背景（舊版向下兼容） */
.chat-message--user .chat-message__content {
    background: var(--primary, #FF6B35);
    color: white;
    border-top-right-radius: var(--radius-sm);
}

.chat-message--user .chat-message__content p {
    margin: 0;
}

/* AI 訊息 - 白色背景 + 淺色邊框 */
.chat-message--assistant .chat-message__content {
    background: var(--bg-primary);
    color: #374151;
    border: 1px solid var(--neutral-200);
    border-top-left-radius: var(--radius-sm);
}

/* ==================== 思考指示器樣式（ThinkingIndicator 整合）==================== */

/* 思考指示器在 GuideCharacter 對話框中的品牌色主題 */
.chat-dialog__messages .thinking-indicator-message .thinking-spinner span {
    background: var(--primary, #FF6B35);
}

.chat-dialog__messages .thinking-indicator-message .avatar-spinner span {
    background: var(--primary, #FF6B35);
}

.chat-dialog__messages .thinking-indicator-message .thinking-message {
    color: #64748b;
}

/* 舊版 typing-bubble 樣式保留向下兼容 */
.typing-bubble {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    background: rgba(255, 107, 53, 0.05);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: var(--radius-2xl);
    border-top-left-radius: var(--radius-sm);
}

.typing-dots {
    display: flex;
    gap: 0.25rem;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary, #FF6B35);
    border-radius: var(--radius-full);
    animation: typingBounce 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.15s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

.typing-text {
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--primary, #FF6B35);
    animation: fadeInOut 1.5s infinite;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* ==================== Markdown 渲染樣式（完全同步智能簡報模式） ==================== */
.message-bubble {
    font-size: var(--text-sm);
    line-height: 1.6;
    word-wrap: break-word;
}

.message-bubble p {
    margin: 0.5rem 0;
}

.message-bubble p:first-child {
    margin-top: 0;
}

.message-bubble p:last-child {
    margin-bottom: 0;
}

/* 無序列表 */
.message-bubble ul {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    list-style-type: disc;
}

/* 有序列表 - 數字格式 1. 2. 3. */
.message-bubble ol {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    list-style-type: decimal;
}

.message-bubble li {
    margin: 0.25rem 0;
}

/* 巢狀列表樣式 */
.message-bubble ul ul {
    list-style-type: circle;
}

.message-bubble ul ul ul {
    list-style-type: square;
}

.message-bubble ol ol {
    list-style-type: lower-alpha;
}

.message-bubble ol ol ol {
    list-style-type: lower-roman;
}

/* 行內代碼 */
.message-bubble code {
    background: rgba(0, 0, 0, 0.05);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-family: 'SF Mono', 'Monaco', monospace;
}

/* 用戶訊息中的代碼樣式 */
.chat-message--user .message-bubble code {
    background: rgba(255, 255, 255, 0.2);
}

.message-bubble pre {
    background: var(--neutral-800);
    color: var(--neutral-200);
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    overflow-x: auto;
    margin: 0.5rem 0;
}

.message-bubble pre code {
    background: transparent;
    padding: 0;
}

.message-bubble strong {
    font-weight: 600;
}

.message-bubble blockquote {
    margin: 0.5rem 0;
    padding-left: 0.75rem;
    border-left: 3px solid var(--neutral-200);
    color: #64748b;
}

.message-bubble a {
    color: var(--primary, #FF6B35);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.message-bubble a:hover {
    color: var(--primary-dark, #E55A2B);
}

/* 表格樣式 */
.message-bubble table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0;
    font-size: 0.8125rem;
}

.message-bubble th,
.message-bubble td {
    border: 1px solid var(--neutral-200);
    padding: 0.5rem;
    text-align: left;
}

.message-bubble th {
    background: #f8fafc;
    font-weight: 600;
}

/* 標題樣式 */
.message-bubble h1,
.message-bubble h2,
.message-bubble h3,
.message-bubble h4,
.message-bubble h5,
.message-bubble h6 {
    margin: 0.75rem 0 0.5rem 0;
    font-weight: 600;
    line-height: 1.4;
}

.message-bubble h1:first-child,
.message-bubble h2:first-child,
.message-bubble h3:first-child {
    margin-top: 0;
}

.message-bubble h1 { font-size: var(--text-xl); }
.message-bubble h2 { font-size: var(--text-lg); }
.message-bubble h3 { font-size: var(--text-base); }
.message-bubble h4,
.message-bubble h5,
.message-bubble h6 { font-size: var(--text-sm); }

/* 分隔線 */
.message-bubble hr {
    border: none;
    border-top: 1px solid var(--neutral-200);
    margin: 0.75rem 0;
}

/* ==================== 貼圖訊息 ==================== */
.chat-dialog .sticker-message {
    animation: gcStickerFadeIn 0.3s ease-out;
}

.chat-dialog .gc-sticker-bubble {
    display: inline-block;
    padding: 4px;
}

.chat-dialog .gc-sticker-img {
    display: block;
    max-width: 96px;
    max-height: 96px;
    border-radius: 8px;
    animation: gcStickerBounceIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes gcStickerBounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.95);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes gcStickerFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .chat-dialog .sticker-message {
        animation: none;
    }

    .chat-dialog .gc-sticker-img {
        animation: none;
    }
}