/* ============================================
   小龍蝦自動化展示平台 - 毛玻璃風格樣式
   ============================================ */

/* CSS 變數 */
:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #ffd700;
    --text-color: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.7);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

/* 重設樣式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基礎樣式 */
body {
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 50%, #0f0f23 100%);
    min-height: 100vh;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景動畫 */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.bubble {
    position: absolute;
    bottom: -100px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 50%;
    animation: float 15s infinite;
    opacity: 0.6;
}

.bubble:nth-child(1) {
    width: 80px;
    height: 80px;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.bubble:nth-child(2) {
    width: 60px;
    height: 60px;
    left: 20%;
    animation-delay: 2s;
    animation-duration: 14s;
}

.bubble:nth-child(3) {
    width: 40px;
    height: 40px;
    left: 35%;
    animation-delay: 4s;
    animation-duration: 16s;
}

.bubble:nth-child(4) {
    width: 70px;
    height: 70px;
    left: 70%;
    animation-delay: 1s;
    animation-duration: 13s;
}

.bubble:nth-child(5) {
    width: 50px;
    height: 50px;
    left: 85%;
    animation-delay: 3s;
    animation-duration: 15s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.6;
    }
    50% {
        opacity: 0.4;
    }
    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
    }
}

/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 毛玻璃效果基礎類別 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* 頂部標題區 */
.glass-header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.logo {
    font-size: 64px;
    margin-bottom: 10px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.glass-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(90deg, #fff, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-header .subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* 功能卡片區域 */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--glass-shadow);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.2);
}

.glass-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.glass-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-color);
}

.glass-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.status-badge {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(76, 175, 80, 0.2);
    border: 1px solid var(--success-color);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--success-color);
}

/* 功能詳細區域 */
.feature-detail {
    margin-bottom: 30px;
}

.glass-section {
    display: none;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--glass-shadow);
    padding: 30px;
    margin-bottom: 20px;
    animation: fadeIn 0.5s ease;
}

.glass-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.glass-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

/* AI 客服對話區塊 */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 400px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.message {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--glass-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.message-content {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.message.bot .message-content {
    border-top-left-radius: 4px;
}

.message.user .message-content {
    background: rgba(255, 215, 0, 0.2);
    border-color: var(--accent-color);
    border-top-right-radius: 4px;
}

.message-content p {
    font-size: 0.95rem;
    line-height: 1.5;
}

.chat-input-area {
    display: flex;
    gap: 10px;
}

.chat-input-area input {
    flex: 1;
    padding: 15px 20px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    color: var(--text-color);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.chat-input-area input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.chat-input-area input::placeholder {
    color: var(--text-muted);
}

/* 按鈕樣式 */
.glass-button {
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--accent-color), #ffaa00);
    border: none;
    border-radius: 30px;
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.glass-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 215, 0, 0.4);
}

.glass-button:active {
    transform: translateY(0);
}

.glass-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.glass-button.full-width {
    width: 100%;
}

/* 預約表單 */
.booking-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='white' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-group select option {
    background: var(--primary-color);
    color: var(--text-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* 發文區塊 */
.post-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .post-form {
        grid-template-columns: 1fr;
    }
}

.post-preview {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.post-card {
    width: 100%;
    max-width: 400px;
    background: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    border-bottom: 1px solid #eee;
}

.post-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff6b6b, #ffd93d);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.post-info {
    display: flex;
    flex-direction: column;
}

.post-name {
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
}

.post-time {
    font-size: 0.8rem;
    color: #999;
}

.post-content {
    padding: 15px;
    color: #333;
    font-size: 0.95rem;
    min-height: 100px;
    word-wrap: break-word;
}

.post-actions {
    display: flex;
    gap: 20px;
    padding: 10px 15px;
    border-top: 1px solid #eee;
    color: #666;
    font-size: 0.9rem;
}

.post-actions span {
    cursor: pointer;
    transition: color 0.2s;
}

.post-actions span:hover {
    color: #1877f2;
}

.post-input-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.post-input-area textarea {
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 1rem;
    resize: vertical;
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

.post-input-area textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.post-options {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.checkbox-label input {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--glass-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.checkbox-label input:checked + .checkmark {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.checkbox-label input:checked + .checkmark::after {
    content: '✓';
    color: var(--primary-color);
    font-size: 14px;
    font-weight: bold;
}

/* 統計區域 */
.stats-section {
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* 頁尾 */
.glass-footer {
    text-align: center;
    padding: 30px 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.glass-footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 1.3rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
    transform: translateY(-2px);
}

/* 載入動畫 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-spinner p {
    color: var(--text-color);
    font-size: 1rem;
}

/* 通知訊息 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 0.95rem;
    box-shadow: 0 8px 32px var(--glass-shadow);
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 1001;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-color: var(--success-color);
}

.notification.error {
    border-color: var(--error-color);
}

.notification.warning {
    border-color: var(--warning-color);
}

/* 打字中動畫 */
.typing-indicator {
    display: flex;
    gap: 5px;
    padding: 10px 15px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* 響應式設計 */
@media (max-width: 768px) {
    .glass-header h1 {
        font-size: 1.8rem;
    }

    .glass-header .subtitle {
        font-size: 0.95rem;
    }

    .feature-cards {
        grid-template-columns: 1fr;
    }

    .glass-section {
        padding: 20px;
    }

    .chat-container {
        height: 350px;
    }

    .message-content {
        max-width: 85%;
    }

    .stat-number {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .glass-header {
        padding: 30px 15px;
    }

    .glass-header h1 {
        font-size: 1.5rem;
    }

    .logo {
        font-size: 48px;
    }

    .chat-input-area {
        flex-direction: column;
    }

    .glass-button {
        width: 100%;
    }
}

/* ============================================
   AI 智能發文區域樣式
   ============================================ */

.ai-post-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.ai-post-input-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ai-post-actions {
    display: flex;
    justify-content: flex-end;
}

.ai-post-preview-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ai-post-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 900px) {
    .ai-post-layout {
        grid-template-columns: 1fr;
    }
}

.ai-post-preview {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.ai-post-controls {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.control-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 6px;
    display: block;
}

.glass-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    font-family: inherit;
}

.glass-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.glass-input::placeholder {
    color: var(--text-muted);
}

/* 圖片控制 */
.image-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.image-search {
    display: flex;
    gap: 10px;
}

.image-search .glass-input {
    flex: 1;
}

.image-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.image-options .glass-button.secondary {
    padding: 10px 16px;
    font-size: 0.9rem;
}

.image-preview-thumb {
    position: relative;
    display: inline-flex;
    align-self: flex-start;
}

.image-preview-thumb img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}

.remove-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: var(--error-color);
    color: white;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 發文圖片容器 */
.post-image {
    padding: 0 15px 15px;
}

.post-image img {
    width: 100%;
    max-height: 240px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

/* 排程按鈕 */
.post-schedule-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.schedule-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.schedule-btn {
    flex: 1;
    min-width: 120px;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-2);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.schedule-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-1);
}

.schedule-btn.active {
    background: linear-gradient(135deg, rgba(0, 232, 184, 0.25) 0%, rgba(0, 212, 170, 0.40) 100%);
    border-color: rgba(0, 232, 184, 0.25);
    color: var(--accent);
    box-shadow: 0 2px 12px var(--accent-glow);
}

/* AI 發文最終操作 */
.ai-post-final-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.ai-post-final-actions .glass-button {
    flex: 1;
    min-width: 140px;
}

.ai-post-final-actions .glass-button.primary {
    background: linear-gradient(135deg, rgba(0, 232, 184, 0.25) 0%, rgba(0, 212, 170, 0.40) 100%);
    color: var(--accent);
    border: 1px solid rgba(0, 232, 184, 0.25);
    box-shadow: 0 2px 12px var(--accent-glow);
}

.ai-post-final-actions .glass-button.secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-post-final-actions .glass-button.primary:hover {
    box-shadow: 0 4px 20px var(--accent-dim);
}

.ai-post-final-actions .glass-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-1);
}

/* 圖片搜尋結果 */
.image-search-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.image-search-result-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
    aspect-ratio: 1;
}

.image-search-result-item:hover,
.image-search-result-item.selected {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.image-search-result-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.image-search-loading {
    text-align: center;
    color: var(--text-muted);
    padding: 16px;
    font-size: 0.9rem;
}

.image-search-error {
    text-align: center;
    color: var(--error-color);
    padding: 12px;
    font-size: 0.9rem;
}

/* ============================================
   Modal 彈窗樣式
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalSlideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-box {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 40px 36px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    animation: modalSlideUp 0.35s ease;
}

.modal-icon {
    font-size: 56px;
    margin-bottom: 12px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.modal-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 28px;
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    text-decoration: none;
    border: none;
    font-family: inherit;
}

.modal-btn.primary {
    background: linear-gradient(135deg, #1877f2 0%, #0d5bbd 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(24, 119, 242, 0.4);
}

.modal-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(24, 119, 242, 0.5);
}

.modal-btn.secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.modal-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}

/* ==================== 知識來源 ==================== */
.knowledge-source {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
}

.knowledge-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition);
}

.knowledge-header:hover {
    background: rgba(255, 255, 255, 0.05);
}

.knowledge-header i.fa-brain {
    color: var(--accent-color);
    font-size: 1rem;
}

.knowledge-header span {
    font-size: 0.9rem;
    color: var(--text-color);
}

.knowledge-status {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 10px;
    border-radius: 20px;
}

.knowledge-status.active {
    color: var(--success-color);
    background: rgba(76, 175, 80, 0.15);
}

.knowledge-toggle {
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.knowledge-toggle.open {
    transform: rotate(180deg);
}

.knowledge-body {
    padding: 0 16px 16px;
}

.knowledge-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.knowledge-textarea-wrap {
    position: relative;
}

.knowledge-textarea-wrap textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 12px;
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.6;
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.knowledge-textarea-wrap textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.knowledge-textarea-wrap textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.knowledge-char-count {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
    pointer-events: none;
}

.knowledge-char-count.near-limit {
    color: var(--warning-color);
}

.knowledge-char-count.at-limit {
    color: var(--error-color);
}

.knowledge-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.knowledge-actions .glass-button {
    padding: 8px 20px;
    font-size: 0.85rem;
}